diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c
index f18c94889..58a76f4c6 100644
--- a/mrbgems/mruby-compiler/core/codegen.c
+++ b/mrbgems/mruby-compiler/core/codegen.c
@@ -4023,28 +4023,6 @@ codegen_call_fcall(codegen_scope *s, node *tree, int val)
   gen_call(s, tree, val, 0);
 }
 
-static void
-codegen_dot2(codegen_scope *s, node *tree, int val)
-{
-  codegen(s, tree->car, val);
-  codegen(s, tree->cdr, val);
-  if (!val) return;
-  pop(); pop();
-  genop_1(s, OP_RANGE_INC, cursp());
-  push();
-}
-
-static void
-codegen_dot3(codegen_scope *s, node *tree, int val)
-{
-  codegen(s, tree->car, val);
-  codegen(s, tree->cdr, val);
-  if (!val) return;
-  pop(); pop();
-  genop_1(s, OP_RANGE_EXC, cursp());
-  push();
-}
-
 static void
 codegen_scall(codegen_scope *s, node *tree, int val)
 {
@@ -5494,31 +5472,29 @@ gen_regx_var(codegen_scope *s, node *varnode, int val)
 static void
 gen_dot2_var(codegen_scope *s, node *varnode, int val)
 {
-  struct mrb_ast_dot2_node *dot2_n = dot2_node(varnode->car);
-  node *left = DOT2_NODE_LEFT(dot2_n);
-  node *right = DOT2_NODE_RIGHT(dot2_n);
+  node *left = DOT2_NODE_LEFT(varnode);
+  node *right = DOT2_NODE_RIGHT(varnode);
 
-  /* Create simple cons structure like traditional node */
-  node range_node;
-  range_node.car = left;
-  range_node.cdr = right;
-
-  codegen_dot2(s, &range_node, val);
+  codegen(s, left, val);
+  codegen(s, right, val);
+  if (!val) return;
+  pop(); pop();
+  genop_1(s, OP_RANGE_INC, cursp());
+  push();
 }
 
 static void
 gen_dot3_var(codegen_scope *s, node *varnode, int val)
 {
-  struct mrb_ast_dot3_node *dot3_n = dot3_node(varnode->car);
-  node *left = DOT3_NODE_LEFT(dot3_n);
-  node *right = DOT3_NODE_RIGHT(dot3_n);
+  node *left = DOT3_NODE_LEFT(varnode);
+  node *right = DOT3_NODE_RIGHT(varnode);
 
-  /* Create simple cons structure like traditional node */
-  node range_node;
-  range_node.car = left;
-  range_node.cdr = right;
-
-  codegen_dot3(s, &range_node, val);
+  codegen(s, left, val);
+  codegen(s, right, val);
+  if (!val) return;
+  pop(); pop();
+  genop_1(s, OP_RANGE_EXC, cursp());
+  push();
 }
 
 static void
@@ -6481,14 +6457,6 @@ codegen(codegen_scope *s, node *tree, int val)
     codegen_scall(s, tree, val);
     break;
 
-  case NODE_DOT2:
-    codegen_dot2(s, tree, val);
-    break;
-
-  case NODE_DOT3:
-    codegen_dot3(s, tree, val);
-    break;
-
   case NODE_COLON2:
     codegen_colon2(s, tree, val);
     break;
diff --git a/mrbgems/mruby-compiler/core/parse.y b/mrbgems/mruby-compiler/core/parse.y
index 38ad360f2..a5c311748 100644
--- a/mrbgems/mruby-compiler/core/parse.y
+++ b/mrbgems/mruby-compiler/core/parse.y
@@ -613,8 +613,6 @@ static node* new_or_var(parser_state *p, node *left, node *right);
 static node* new_return_var(parser_state *p, node *args);
 static node* new_yield_var(parser_state *p, node *args);
 static node* new_super_var(parser_state *p, node *args);
-static node* new_dot2_var(parser_state *p, node *left, node *right);
-static node* new_dot3_var(parser_state *p, node *left, node *right);
 static node* new_float_var(parser_state *p, const char *value);
 
 /* (:if cond then else) */
@@ -1198,35 +1196,7 @@ new_super_var(parser_state *p, node *args)
 }
 
 /* Variable-sized literal node creation functions */
-static node*
-new_dot2_var(parser_state *p, node *left, node *right)
-{
-  size_t total_size = sizeof(struct mrb_ast_dot2_node);
-  enum mrb_ast_size_class class = size_to_class(total_size);
 
-  struct mrb_ast_dot2_node *n = (struct mrb_ast_dot2_node*)parser_alloc_var(p, total_size, class);
-
-  init_var_header(&n->hdr, p, NODE_DOT2, class);
-  n->left = left;
-  n->right = right;
-
-  return cons_head((node*)NODE_VARIABLE, (node*)n);
-}
-
-static node*
-new_dot3_var(parser_state *p, node *left, node *right)
-{
-  size_t total_size = sizeof(struct mrb_ast_dot3_node);
-  enum mrb_ast_size_class class = size_to_class(total_size);
-
-  struct mrb_ast_dot3_node *n = (struct mrb_ast_dot3_node*)parser_alloc_var(p, total_size, class);
-
-  init_var_header(&n->hdr, p, NODE_DOT3, class);
-  n->left = left;
-  n->right = right;
-
-  return cons_head((node*)NODE_VARIABLE, (node*)n);
-}
 
 static node*
 new_float_var(parser_state *p, const char *value)
@@ -1456,20 +1426,32 @@ new_retry(parser_state *p)
 static node*
 new_dot2(parser_state *p, node *a, node *b)
 {
-  if (p->var_nodes_enabled) {
-    return new_dot2_var(p, a, b);
-  }
-  return cons_head((node*)NODE_DOT2, cons(a, b));
+  size_t total_size = sizeof(struct mrb_ast_dot2_node);
+  enum mrb_ast_size_class class = size_to_class(total_size);
+
+  struct mrb_ast_dot2_node *n = (struct mrb_ast_dot2_node*)parser_alloc_var(p, total_size, class);
+
+  init_var_header(&n->hdr, p, NODE_DOT2, class);
+  n->left = a;
+  n->right = b;
+
+  return cons_head((node*)NODE_VARIABLE, (node*)n);
 }
 
 /* (:dot3 a b) */
 static node*
 new_dot3(parser_state *p, node *a, node *b)
 {
-  if (p->var_nodes_enabled) {
-    return new_dot3_var(p, a, b);
-  }
-  return cons_head((node*)NODE_DOT3, cons(a, b));
+  size_t total_size = sizeof(struct mrb_ast_dot3_node);
+  enum mrb_ast_size_class class = size_to_class(total_size);
+
+  struct mrb_ast_dot3_node *n = (struct mrb_ast_dot3_node*)parser_alloc_var(p, total_size, class);
+
+  init_var_header(&n->hdr, p, NODE_DOT3, class);
+  n->left = a;
+  n->right = b;
+
+  return cons_head((node*)NODE_VARIABLE, (node*)n);
 }
 
 /* (:colon2 b c) */
diff --git a/mrbgems/mruby-compiler/core/y.tab.c b/mrbgems/mruby-compiler/core/y.tab.c
index 87a9d7429..613fa5f0f 100644
--- a/mrbgems/mruby-compiler/core/y.tab.c
+++ b/mrbgems/mruby-compiler/core/y.tab.c
@@ -675,8 +675,6 @@ static node* new_or_var(parser_state *p, node *left, node *right);
 static node* new_return_var(parser_state *p, node *args);
 static node* new_yield_var(parser_state *p, node *args);
 static node* new_super_var(parser_state *p, node *args);
-static node* new_dot2_var(parser_state *p, node *left, node *right);
-static node* new_dot3_var(parser_state *p, node *left, node *right);
 static node* new_float_var(parser_state *p, const char *value);
 
 /* (:if cond then else) */
@@ -1260,35 +1258,7 @@ new_super_var(parser_state *p, node *args)
 }
 
 /* Variable-sized literal node creation functions */
-static node*
-new_dot2_var(parser_state *p, node *left, node *right)
-{
-  size_t total_size = sizeof(struct mrb_ast_dot2_node);
-  enum mrb_ast_size_class class = size_to_class(total_size);
 
-  struct mrb_ast_dot2_node *n = (struct mrb_ast_dot2_node*)parser_alloc_var(p, total_size, class);
-
-  init_var_header(&n->hdr, p, NODE_DOT2, class);
-  n->left = left;
-  n->right = right;
-
-  return cons_head((node*)NODE_VARIABLE, (node*)n);
-}
-
-static node*
-new_dot3_var(parser_state *p, node *left, node *right)
-{
-  size_t total_size = sizeof(struct mrb_ast_dot3_node);
-  enum mrb_ast_size_class class = size_to_class(total_size);
-
-  struct mrb_ast_dot3_node *n = (struct mrb_ast_dot3_node*)parser_alloc_var(p, total_size, class);
-
-  init_var_header(&n->hdr, p, NODE_DOT3, class);
-  n->left = left;
-  n->right = right;
-
-  return cons_head((node*)NODE_VARIABLE, (node*)n);
-}
 
 static node*
 new_float_var(parser_state *p, const char *value)
@@ -1518,20 +1488,32 @@ new_retry(parser_state *p)
 static node*
 new_dot2(parser_state *p, node *a, node *b)
 {
-  if (p->var_nodes_enabled) {
-    return new_dot2_var(p, a, b);
-  }
-  return cons_head((node*)NODE_DOT2, cons(a, b));
+  size_t total_size = sizeof(struct mrb_ast_dot2_node);
+  enum mrb_ast_size_class class = size_to_class(total_size);
+
+  struct mrb_ast_dot2_node *n = (struct mrb_ast_dot2_node*)parser_alloc_var(p, total_size, class);
+
+  init_var_header(&n->hdr, p, NODE_DOT2, class);
+  n->left = a;
+  n->right = b;
+
+  return cons_head((node*)NODE_VARIABLE, (node*)n);
 }
 
 /* (:dot3 a b) */
 static node*
 new_dot3(parser_state *p, node *a, node *b)
 {
-  if (p->var_nodes_enabled) {
-    return new_dot3_var(p, a, b);
-  }
-  return cons_head((node*)NODE_DOT3, cons(a, b));
+  size_t total_size = sizeof(struct mrb_ast_dot3_node);
+  enum mrb_ast_size_class class = size_to_class(total_size);
+
+  struct mrb_ast_dot3_node *n = (struct mrb_ast_dot3_node*)parser_alloc_var(p, total_size, class);
+
+  init_var_header(&n->hdr, p, NODE_DOT3, class);
+  n->left = a;
+  n->right = b;
+
+  return cons_head((node*)NODE_VARIABLE, (node*)n);
 }
 
 /* (:colon2 b c) */
@@ -2607,7 +2589,7 @@ prohibit_literals(parser_state *p, node *n)
 /* xxx ----------------------------- */
 
 
-#line 2611 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 2593 "mrbgems/mruby-compiler/core/y.tab.c"
 
 # ifndef YY_CAST
 #  ifdef __cplusplus
@@ -2778,7 +2760,7 @@ extern int yydebug;
 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
 union YYSTYPE
 {
-#line 2554 "mrbgems/mruby-compiler/core/parse.y"
+#line 2536 "mrbgems/mruby-compiler/core/parse.y"
 
     node *nd;
     mrb_sym id;
@@ -2786,7 +2768,7 @@ union YYSTYPE
     stack_type stack;
     const struct vtable *vars;
 
-#line 2790 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 2772 "mrbgems/mruby-compiler/core/y.tab.c"
 
 };
 typedef union YYSTYPE YYSTYPE;
@@ -3545,69 +3527,69 @@ static const yytype_uint8 yytranslate[] =
 /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
 static const yytype_int16 yyrline[] =
 {
-       0,  2725,  2725,  2725,  2735,  2741,  2745,  2749,  2753,  2759,
-    2761,  2760,  2774,  2800,  2806,  2810,  2814,  2818,  2824,  2824,
-    2828,  2832,  2836,  2840,  2849,  2858,  2862,  2867,  2868,  2872,
-    2876,  2880,  2884,  2890,  2893,  2897,  2901,  2905,  2909,  2913,
-    2918,  2922,  2931,  2940,  2949,  2958,  2965,  2966,  2970,  2974,
-    2975,  2979,  2983,  2987,  2991,  2995,  3005,  3004,  3019,  3028,
-    3029,  3032,  3033,  3040,  3039,  3054,  3058,  3063,  3067,  3072,
-    3076,  3081,  3085,  3089,  3093,  3097,  3103,  3107,  3113,  3114,
-    3120,  3124,  3128,  3132,  3136,  3140,  3144,  3148,  3152,  3156,
-    3162,  3163,  3169,  3173,  3179,  3183,  3189,  3193,  3197,  3201,
-    3205,  3209,  3215,  3221,  3228,  3232,  3236,  3240,  3244,  3248,
-    3254,  3260,  3265,  3271,  3275,  3278,  3282,  3286,  3293,  3294,
-    3295,  3296,  3301,  3308,  3309,  3312,  3316,  3316,  3322,  3323,
-    3324,  3325,  3326,  3327,  3328,  3329,  3330,  3331,  3332,  3333,
-    3334,  3335,  3336,  3337,  3338,  3339,  3340,  3341,  3342,  3343,
-    3344,  3345,  3346,  3347,  3348,  3349,  3350,  3351,  3354,  3354,
-    3354,  3355,  3355,  3356,  3356,  3356,  3357,  3357,  3357,  3357,
-    3358,  3358,  3358,  3359,  3359,  3359,  3360,  3360,  3360,  3360,
-    3361,  3361,  3361,  3361,  3362,  3362,  3362,  3362,  3363,  3363,
-    3363,  3363,  3364,  3364,  3364,  3364,  3365,  3365,  3368,  3372,
-    3376,  3380,  3384,  3388,  3392,  3397,  3402,  3407,  3411,  3415,
-    3419,  3423,  3427,  3431,  3435,  3439,  3443,  3447,  3451,  3455,
-    3459,  3463,  3467,  3471,  3475,  3479,  3483,  3487,  3491,  3495,
-    3499,  3503,  3507,  3511,  3515,  3519,  3523,  3527,  3531,  3535,
-    3539,  3543,  3547,  3551,  3555,  3564,  3573,  3582,  3591,  3597,
-    3598,  3602,  3606,  3612,  3616,  3623,  3627,  3636,  3653,  3654,
-    3657,  3658,  3659,  3663,  3667,  3673,  3678,  3682,  3686,  3690,
-    3696,  3696,  3707,  3711,  3717,  3721,  3727,  3730,  3735,  3739,
-    3743,  3748,  3752,  3758,  3763,  3767,  3773,  3774,  3778,  3782,
-    3783,  3784,  3785,  3786,  3791,  3790,  3802,  3806,  3801,  3811,
-    3811,  3815,  3819,  3823,  3827,  3831,  3835,  3839,  3843,  3847,
-    3851,  3855,  3856,  3862,  3869,  3861,  3882,  3890,  3898,  3898,
-    3898,  3905,  3905,  3905,  3912,  3918,  3923,  3925,  3922,  3934,
-    3932,  3950,  3955,  3948,  3972,  3970,  3986,  3996,  4007,  4011,
-    4015,  4019,  4025,  4032,  4033,  4034,  4037,  4038,  4041,  4042,
-    4050,  4051,  4057,  4061,  4064,  4068,  4072,  4076,  4081,  4085,
-    4089,  4093,  4099,  4098,  4108,  4112,  4116,  4120,  4126,  4131,
-    4136,  4140,  4144,  4148,  4152,  4156,  4160,  4164,  4168,  4172,
-    4176,  4180,  4184,  4188,  4192,  4198,  4203,  4210,  4210,  4214,
-    4219,  4226,  4230,  4236,  4237,  4240,  4245,  4248,  4252,  4258,
-    4262,  4269,  4268,  4285,  4295,  4299,  4304,  4311,  4315,  4319,
-    4323,  4327,  4331,  4335,  4339,  4343,  4350,  4349,  4364,  4363,
-    4379,  4387,  4396,  4399,  4406,  4409,  4413,  4414,  4417,  4421,
-    4424,  4428,  4431,  4432,  4433,  4434,  4437,  4438,  4444,  4449,
-    4454,  4459,  4465,  4466,  4472,  4478,  4477,  4489,  4493,  4499,
-    4503,  4509,  4518,  4529,  4532,  4533,  4536,  4542,  4548,  4549,
-    4552,  4559,  4558,  4573,  4577,  4586,  4590,  4602,  4609,  4616,
-    4617,  4618,  4619,  4620,  4624,  4630,  4634,  4642,  4643,  4644,
-    4648,  4654,  4658,  4662,  4666,  4670,  4676,  4680,  4686,  4690,
-    4694,  4698,  4702,  4706,  4710,  4718,  4725,  4731,  4732,  4736,
-    4740,  4739,  4756,  4757,  4760,  4766,  4770,  4776,  4777,  4781,
-    4785,  4791,  4795,  4801,  4807,  4814,  4820,  4827,  4831,  4837,
-    4841,  4847,  4848,  4851,  4855,  4861,  4865,  4869,  4873,  4879,
-    4884,  4889,  4893,  4897,  4901,  4905,  4909,  4913,  4917,  4921,
-    4925,  4929,  4933,  4937,  4941,  4946,  4952,  4957,  4962,  4967,
-    4972,  4979,  4983,  4990,  4995,  4994,  5006,  5010,  5016,  5024,
-    5032,  5040,  5044,  5050,  5054,  5060,  5061,  5064,  5069,  5076,
-    5077,  5080,  5084,  5090,  5094,  5100,  5106,  5106,  5113,  5114,
-    5120,  5124,  5130,  5136,  5141,  5145,  5150,  5155,  5171,  5176,
-    5182,  5183,  5184,  5187,  5188,  5189,  5190,  5193,  5194,  5195,
-    5198,  5199,  5202,  5206,  5212,  5213,  5219,  5220,  5223,  5224,
-    5227,  5230,  5231,  5232,  5235,  5236,  5239,  5244,  5247,  5248,
-    5252
+       0,  2707,  2707,  2707,  2717,  2723,  2727,  2731,  2735,  2741,
+    2743,  2742,  2756,  2782,  2788,  2792,  2796,  2800,  2806,  2806,
+    2810,  2814,  2818,  2822,  2831,  2840,  2844,  2849,  2850,  2854,
+    2858,  2862,  2866,  2872,  2875,  2879,  2883,  2887,  2891,  2895,
+    2900,  2904,  2913,  2922,  2931,  2940,  2947,  2948,  2952,  2956,
+    2957,  2961,  2965,  2969,  2973,  2977,  2987,  2986,  3001,  3010,
+    3011,  3014,  3015,  3022,  3021,  3036,  3040,  3045,  3049,  3054,
+    3058,  3063,  3067,  3071,  3075,  3079,  3085,  3089,  3095,  3096,
+    3102,  3106,  3110,  3114,  3118,  3122,  3126,  3130,  3134,  3138,
+    3144,  3145,  3151,  3155,  3161,  3165,  3171,  3175,  3179,  3183,
+    3187,  3191,  3197,  3203,  3210,  3214,  3218,  3222,  3226,  3230,
+    3236,  3242,  3247,  3253,  3257,  3260,  3264,  3268,  3275,  3276,
+    3277,  3278,  3283,  3290,  3291,  3294,  3298,  3298,  3304,  3305,
+    3306,  3307,  3308,  3309,  3310,  3311,  3312,  3313,  3314,  3315,
+    3316,  3317,  3318,  3319,  3320,  3321,  3322,  3323,  3324,  3325,
+    3326,  3327,  3328,  3329,  3330,  3331,  3332,  3333,  3336,  3336,
+    3336,  3337,  3337,  3338,  3338,  3338,  3339,  3339,  3339,  3339,
+    3340,  3340,  3340,  3341,  3341,  3341,  3342,  3342,  3342,  3342,
+    3343,  3343,  3343,  3343,  3344,  3344,  3344,  3344,  3345,  3345,
+    3345,  3345,  3346,  3346,  3346,  3346,  3347,  3347,  3350,  3354,
+    3358,  3362,  3366,  3370,  3374,  3379,  3384,  3389,  3393,  3397,
+    3401,  3405,  3409,  3413,  3417,  3421,  3425,  3429,  3433,  3437,
+    3441,  3445,  3449,  3453,  3457,  3461,  3465,  3469,  3473,  3477,
+    3481,  3485,  3489,  3493,  3497,  3501,  3505,  3509,  3513,  3517,
+    3521,  3525,  3529,  3533,  3537,  3546,  3555,  3564,  3573,  3579,
+    3580,  3584,  3588,  3594,  3598,  3605,  3609,  3618,  3635,  3636,
+    3639,  3640,  3641,  3645,  3649,  3655,  3660,  3664,  3668,  3672,
+    3678,  3678,  3689,  3693,  3699,  3703,  3709,  3712,  3717,  3721,
+    3725,  3730,  3734,  3740,  3745,  3749,  3755,  3756,  3760,  3764,
+    3765,  3766,  3767,  3768,  3773,  3772,  3784,  3788,  3783,  3793,
+    3793,  3797,  3801,  3805,  3809,  3813,  3817,  3821,  3825,  3829,
+    3833,  3837,  3838,  3844,  3851,  3843,  3864,  3872,  3880,  3880,
+    3880,  3887,  3887,  3887,  3894,  3900,  3905,  3907,  3904,  3916,
+    3914,  3932,  3937,  3930,  3954,  3952,  3968,  3978,  3989,  3993,
+    3997,  4001,  4007,  4014,  4015,  4016,  4019,  4020,  4023,  4024,
+    4032,  4033,  4039,  4043,  4046,  4050,  4054,  4058,  4063,  4067,
+    4071,  4075,  4081,  4080,  4090,  4094,  4098,  4102,  4108,  4113,
+    4118,  4122,  4126,  4130,  4134,  4138,  4142,  4146,  4150,  4154,
+    4158,  4162,  4166,  4170,  4174,  4180,  4185,  4192,  4192,  4196,
+    4201,  4208,  4212,  4218,  4219,  4222,  4227,  4230,  4234,  4240,
+    4244,  4251,  4250,  4267,  4277,  4281,  4286,  4293,  4297,  4301,
+    4305,  4309,  4313,  4317,  4321,  4325,  4332,  4331,  4346,  4345,
+    4361,  4369,  4378,  4381,  4388,  4391,  4395,  4396,  4399,  4403,
+    4406,  4410,  4413,  4414,  4415,  4416,  4419,  4420,  4426,  4431,
+    4436,  4441,  4447,  4448,  4454,  4460,  4459,  4471,  4475,  4481,
+    4485,  4491,  4500,  4511,  4514,  4515,  4518,  4524,  4530,  4531,
+    4534,  4541,  4540,  4555,  4559,  4568,  4572,  4584,  4591,  4598,
+    4599,  4600,  4601,  4602,  4606,  4612,  4616,  4624,  4625,  4626,
+    4630,  4636,  4640,  4644,  4648,  4652,  4658,  4662,  4668,  4672,
+    4676,  4680,  4684,  4688,  4692,  4700,  4707,  4713,  4714,  4718,
+    4722,  4721,  4738,  4739,  4742,  4748,  4752,  4758,  4759,  4763,
+    4767,  4773,  4777,  4783,  4789,  4796,  4802,  4809,  4813,  4819,
+    4823,  4829,  4830,  4833,  4837,  4843,  4847,  4851,  4855,  4861,
+    4866,  4871,  4875,  4879,  4883,  4887,  4891,  4895,  4899,  4903,
+    4907,  4911,  4915,  4919,  4923,  4928,  4934,  4939,  4944,  4949,
+    4954,  4961,  4965,  4972,  4977,  4976,  4988,  4992,  4998,  5006,
+    5014,  5022,  5026,  5032,  5036,  5042,  5043,  5046,  5051,  5058,
+    5059,  5062,  5066,  5072,  5076,  5082,  5088,  5088,  5095,  5096,
+    5102,  5106,  5112,  5118,  5123,  5127,  5132,  5137,  5153,  5158,
+    5164,  5165,  5166,  5169,  5170,  5171,  5172,  5175,  5176,  5177,
+    5180,  5181,  5184,  5188,  5194,  5195,  5201,  5202,  5205,  5206,
+    5209,  5212,  5213,  5214,  5217,  5218,  5221,  5226,  5229,  5230,
+    5234
 };
 #endif
 
@@ -7584,7 +7566,7 @@ YYLTYPE yylloc = yyloc_default;
 
 
 
-#line 7588 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7570 "mrbgems/mruby-compiler/core/y.tab.c"
 
   yylsp[0] = yylloc;
   goto yysetstate;
@@ -7797,84 +7779,84 @@ yyreduce:
   switch (yyn)
     {
   case 2: /* $@1: %empty  */
-#line 2725 "mrbgems/mruby-compiler/core/parse.y"
+#line 2707 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->lstate = EXPR_BEG;
                       if (!p->locals) p->locals = cons(0,0);
                     }
-#line 7806 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7788 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 3: /* program: $@1 top_compstmt  */
-#line 2730 "mrbgems/mruby-compiler/core/parse.y"
+#line 2712 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->tree = new_scope(p, (yyvsp[0].nd));
                     }
-#line 7814 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7796 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 4: /* top_compstmt: top_stmts opt_terms  */
-#line 2736 "mrbgems/mruby-compiler/core/parse.y"
+#line 2718 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 7822 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7804 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 5: /* top_stmts: none  */
-#line 2742 "mrbgems/mruby-compiler/core/parse.y"
+#line 2724 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_stmts(p, 0);
                     }
-#line 7830 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7812 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 6: /* top_stmts: top_stmt  */
-#line 2746 "mrbgems/mruby-compiler/core/parse.y"
+#line 2728 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_stmts(p, (yyvsp[0].nd));
                     }
-#line 7838 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7820 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 7: /* top_stmts: top_stmts terms top_stmt  */
-#line 2750 "mrbgems/mruby-compiler/core/parse.y"
+#line 2732 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), newline_node((yyvsp[0].nd)));
                     }
-#line 7846 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7828 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 8: /* top_stmts: error top_stmt  */
-#line 2754 "mrbgems/mruby-compiler/core/parse.y"
+#line 2736 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_stmts(p, 0);
                     }
-#line 7854 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7836 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 10: /* @2: %empty  */
-#line 2761 "mrbgems/mruby-compiler/core/parse.y"
+#line 2743 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = local_switch(p);
                       nvars_block(p);
                     }
-#line 7863 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7845 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 11: /* top_stmt: "'BEGIN'" @2 '{' top_compstmt '}'  */
-#line 2766 "mrbgems/mruby-compiler/core/parse.y"
+#line 2748 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       yyerror(&(yylsp[-4]), p, "BEGIN not supported");
                       local_resume(p, (yyvsp[-3].nd));
                       nvars_unnest(p);
                       (yyval.nd) = 0;
                     }
-#line 7874 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7856 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 12: /* bodystmt: compstmt opt_rescue opt_else opt_ensure  */
-#line 2778 "mrbgems/mruby-compiler/core/parse.y"
+#line 2760 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if ((yyvsp[-2].nd)) {
                         (yyval.nd) = new_rescue(p, (yyvsp[-3].nd), (yyvsp[-2].nd), (yyvsp[-1].nd));
@@ -7895,89 +7877,89 @@ yyreduce:
                         }
                       }
                     }
-#line 7899 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7881 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 13: /* compstmt: stmts opt_terms  */
-#line 2801 "mrbgems/mruby-compiler/core/parse.y"
+#line 2783 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 7907 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7889 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 14: /* stmts: none  */
-#line 2807 "mrbgems/mruby-compiler/core/parse.y"
+#line 2789 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_stmts(p, 0);
                     }
-#line 7915 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7897 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 15: /* stmts: stmt  */
-#line 2811 "mrbgems/mruby-compiler/core/parse.y"
+#line 2793 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_stmts(p, (yyvsp[0].nd));
                     }
-#line 7923 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7905 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 16: /* stmts: stmts terms stmt  */
-#line 2815 "mrbgems/mruby-compiler/core/parse.y"
+#line 2797 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), newline_node((yyvsp[0].nd)));
                     }
-#line 7931 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7913 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 17: /* stmts: error stmt  */
-#line 2819 "mrbgems/mruby-compiler/core/parse.y"
+#line 2801 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_stmts(p, (yyvsp[0].nd));
                     }
-#line 7939 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7921 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 18: /* $@3: %empty  */
-#line 2824 "mrbgems/mruby-compiler/core/parse.y"
+#line 2806 "mrbgems/mruby-compiler/core/parse.y"
                                      {p->lstate = EXPR_FNAME;}
-#line 7945 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7927 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 19: /* stmt: "'alias'" fsym $@3 fsym  */
-#line 2825 "mrbgems/mruby-compiler/core/parse.y"
+#line 2807 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_alias(p, (yyvsp[-2].id), (yyvsp[0].id));
                     }
-#line 7953 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7935 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 20: /* stmt: "'undef'" undef_list  */
-#line 2829 "mrbgems/mruby-compiler/core/parse.y"
+#line 2811 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_undef(p, (yyvsp[0].nd));
                     }
-#line 7961 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7943 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 21: /* stmt: stmt "'if' modifier" expr_value  */
-#line 2833 "mrbgems/mruby-compiler/core/parse.y"
+#line 2815 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_if(p, cond((yyvsp[0].nd)), (yyvsp[-2].nd), 0);
                     }
-#line 7969 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7951 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 22: /* stmt: stmt "'unless' modifier" expr_value  */
-#line 2837 "mrbgems/mruby-compiler/core/parse.y"
+#line 2819 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_unless(p, cond((yyvsp[0].nd)), (yyvsp[-2].nd), 0);
                     }
-#line 7977 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7959 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 23: /* stmt: stmt "'while' modifier" expr_value  */
-#line 2841 "mrbgems/mruby-compiler/core/parse.y"
+#line 2823 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if ((yyvsp[-2].nd) && node_to_type((yyvsp[-2].nd)->car) == NODE_BEGIN) {
                         (yyval.nd) = new_while_mod(p, cond((yyvsp[0].nd)), (yyvsp[-2].nd));
@@ -7986,11 +7968,11 @@ yyreduce:
                         (yyval.nd) = new_while(p, cond((yyvsp[0].nd)), (yyvsp[-2].nd));
                       }
                     }
-#line 7990 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7972 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 24: /* stmt: stmt "'until' modifier" expr_value  */
-#line 2850 "mrbgems/mruby-compiler/core/parse.y"
+#line 2832 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if ((yyvsp[-2].nd) && node_to_type((yyvsp[-2].nd)->car) == NODE_BEGIN) {
                         (yyval.nd) = new_until_mod(p, cond((yyvsp[0].nd)), (yyvsp[-2].nd));
@@ -7999,127 +7981,127 @@ yyreduce:
                         (yyval.nd) = new_until(p, cond((yyvsp[0].nd)), (yyvsp[-2].nd));
                       }
                     }
-#line 8003 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7985 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 25: /* stmt: stmt "'rescue' modifier" stmt  */
-#line 2859 "mrbgems/mruby-compiler/core/parse.y"
+#line 2841 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_mod_rescue(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8011 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 7993 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 26: /* stmt: "'END'" '{' compstmt '}'  */
-#line 2863 "mrbgems/mruby-compiler/core/parse.y"
+#line 2845 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       yyerror(&(yylsp[-3]), p, "END not supported");
                       (yyval.nd) = new_postexe(p, (yyvsp[-1].nd));
                     }
-#line 8020 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8002 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 28: /* stmt: mlhs '=' command_call  */
-#line 2869 "mrbgems/mruby-compiler/core/parse.y"
+#line 2851 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_masgn(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8028 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8010 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 29: /* stmt: lhs '=' mrhs  */
-#line 2873 "mrbgems/mruby-compiler/core/parse.y"
+#line 2855 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_asgn(p, (yyvsp[-2].nd), new_array(p, (yyvsp[0].nd)));
                     }
-#line 8036 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8018 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 30: /* stmt: mlhs '=' arg  */
-#line 2877 "mrbgems/mruby-compiler/core/parse.y"
+#line 2859 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_masgn(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8044 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8026 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 31: /* stmt: mlhs '=' mrhs  */
-#line 2881 "mrbgems/mruby-compiler/core/parse.y"
+#line 2863 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_masgn(p, (yyvsp[-2].nd), new_array(p, (yyvsp[0].nd)));
                     }
-#line 8052 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8034 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 32: /* stmt: arg "=>" "local variable or method"  */
-#line 2885 "mrbgems/mruby-compiler/core/parse.y"
+#line 2867 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       node *lhs = new_lvar(p, (yyvsp[0].id));
                       assignable(p, lhs);
                       (yyval.nd) = new_asgn(p, lhs, (yyvsp[-2].nd));
                     }
-#line 8062 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8044 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 34: /* command_asgn: lhs '=' command_rhs  */
-#line 2894 "mrbgems/mruby-compiler/core/parse.y"
+#line 2876 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_asgn(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8070 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8052 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 35: /* command_asgn: var_lhs tOP_ASGN command_rhs  */
-#line 2898 "mrbgems/mruby-compiler/core/parse.y"
+#line 2880 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, (yyvsp[-2].nd), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8078 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8060 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 36: /* command_asgn: primary_value '[' opt_call_args ']' tOP_ASGN command_rhs  */
-#line 2902 "mrbgems/mruby-compiler/core/parse.y"
+#line 2884 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, new_call(p, (yyvsp[-5].nd), intern_op(aref), (yyvsp[-3].nd), '.'), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8086 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8068 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 37: /* command_asgn: primary_value call_op "local variable or method" tOP_ASGN command_rhs  */
-#line 2906 "mrbgems/mruby-compiler/core/parse.y"
+#line 2888 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), 0, (yyvsp[-3].num)), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8094 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8076 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 38: /* command_asgn: primary_value call_op "constant" tOP_ASGN command_rhs  */
-#line 2910 "mrbgems/mruby-compiler/core/parse.y"
+#line 2892 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), 0, (yyvsp[-3].num)), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8102 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8084 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 39: /* command_asgn: primary_value "::" "constant" tOP_ASGN command_call  */
-#line 2914 "mrbgems/mruby-compiler/core/parse.y"
+#line 2896 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       yyerror(&(yylsp[-4]), p, "constant re-assignment");
                       (yyval.nd) = 0;
                     }
-#line 8111 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8093 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 40: /* command_asgn: primary_value "::" "local variable or method" tOP_ASGN command_rhs  */
-#line 2919 "mrbgems/mruby-compiler/core/parse.y"
+#line 2901 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), 0, tCOLON2), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8119 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8101 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 41: /* command_asgn: defn_head f_opt_arglist_paren '=' command  */
-#line 2923 "mrbgems/mruby-compiler/core/parse.y"
+#line 2905 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-3].nd);
                       endless_method_name(p, (yyvsp[-3].nd));
@@ -8128,11 +8110,11 @@ yyreduce:
                       nvars_unnest(p);
                       p->in_def--;
                     }
-#line 8132 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8114 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 42: /* command_asgn: defn_head f_opt_arglist_paren '=' command "'rescue' modifier" arg  */
-#line 2932 "mrbgems/mruby-compiler/core/parse.y"
+#line 2914 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-5].nd);
                       endless_method_name(p, (yyvsp[-5].nd));
@@ -8141,11 +8123,11 @@ yyreduce:
                       nvars_unnest(p);
                       p->in_def--;
                     }
-#line 8145 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8127 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 43: /* command_asgn: defs_head f_opt_arglist_paren '=' command  */
-#line 2941 "mrbgems/mruby-compiler/core/parse.y"
+#line 2923 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-3].nd);
                       void_expr_error(p, (yyvsp[0].nd));
@@ -8154,11 +8136,11 @@ yyreduce:
                       p->in_def--;
                       p->in_single--;
                     }
-#line 8158 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8140 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 44: /* command_asgn: defs_head f_opt_arglist_paren '=' command "'rescue' modifier" arg  */
-#line 2950 "mrbgems/mruby-compiler/core/parse.y"
+#line 2932 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-5].nd);
                       void_expr_error(p, (yyvsp[-2].nd));
@@ -8167,79 +8149,79 @@ yyreduce:
                       p->in_def--;
                       p->in_single--;
                     }
-#line 8171 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8153 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 45: /* command_asgn: backref tOP_ASGN command_rhs  */
-#line 2959 "mrbgems/mruby-compiler/core/parse.y"
+#line 2941 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       backref_error(p, (yyvsp[-2].nd));
                       (yyval.nd) = new_stmts(p, 0);
                     }
-#line 8180 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8162 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 47: /* command_rhs: command_call "'rescue' modifier" stmt  */
-#line 2967 "mrbgems/mruby-compiler/core/parse.y"
+#line 2949 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_mod_rescue(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8188 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8170 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 50: /* expr: expr "'and'" expr  */
-#line 2976 "mrbgems/mruby-compiler/core/parse.y"
+#line 2958 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_and(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8196 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8178 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 51: /* expr: expr "'or'" expr  */
-#line 2980 "mrbgems/mruby-compiler/core/parse.y"
+#line 2962 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_or(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8204 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8186 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 52: /* expr: "'not'" opt_nl expr  */
-#line 2984 "mrbgems/mruby-compiler/core/parse.y"
+#line 2966 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_uni_op(p, cond((yyvsp[0].nd)), "!");
                     }
-#line 8212 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8194 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 53: /* expr: '!' command_call  */
-#line 2988 "mrbgems/mruby-compiler/core/parse.y"
+#line 2970 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_uni_op(p, cond((yyvsp[0].nd)), "!");
                     }
-#line 8220 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8202 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 55: /* defn_head: "'def'" fname  */
-#line 2996 "mrbgems/mruby-compiler/core/parse.y"
+#line 2978 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_def(p, (yyvsp[0].id), int_to_node(p->cmdarg_stack), local_switch(p));
                       p->cmdarg_stack = 0;
                       p->in_def++;
                       nvars_block(p);
                     }
-#line 8231 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8213 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 56: /* $@4: %empty  */
-#line 3005 "mrbgems/mruby-compiler/core/parse.y"
+#line 2987 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->lstate = EXPR_FNAME;
                     }
-#line 8239 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8221 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 57: /* defs_head: "'def'" singleton dot_or_colon $@4 fname  */
-#line 3009 "mrbgems/mruby-compiler/core/parse.y"
+#line 2991 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_sdef(p, (yyvsp[-3].nd), (yyvsp[0].id), int_to_node(p->cmdarg_stack), local_switch(p));
                       p->cmdarg_stack = 0;
@@ -8248,1054 +8230,1054 @@ yyreduce:
                       nvars_block(p);
                       p->lstate = EXPR_ENDFN; /* force for args */
                     }
-#line 8252 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8234 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 58: /* expr_value: expr  */
-#line 3020 "mrbgems/mruby-compiler/core/parse.y"
+#line 3002 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if (!(yyvsp[0].nd)) (yyval.nd) = new_nil(p);
                       else {
                         (yyval.nd) = (yyvsp[0].nd);
                       }
                     }
-#line 8263 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8245 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 62: /* block_command: block_call call_op2 operation2 command_args  */
-#line 3034 "mrbgems/mruby-compiler/core/parse.y"
+#line 3016 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-3].nd), (yyvsp[-1].id), (yyvsp[0].nd), (yyvsp[-2].num));
                     }
-#line 8271 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8253 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 63: /* $@5: %empty  */
-#line 3040 "mrbgems/mruby-compiler/core/parse.y"
+#line 3022 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_nest(p);
                       nvars_nest(p);
                     }
-#line 8280 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8262 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 64: /* cmd_brace_block: "{" $@5 opt_block_param compstmt '}'  */
-#line 3047 "mrbgems/mruby-compiler/core/parse.y"
+#line 3029 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_block(p, (yyvsp[-2].nd), (yyvsp[-1].nd));
                       local_unnest(p);
                       nvars_unnest(p);
                     }
-#line 8290 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8272 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 65: /* command: operation command_args  */
-#line 3055 "mrbgems/mruby-compiler/core/parse.y"
+#line 3037 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_fcall(p, (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8298 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8280 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 66: /* command: operation command_args cmd_brace_block  */
-#line 3059 "mrbgems/mruby-compiler/core/parse.y"
+#line 3041 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       args_with_block(p, (yyvsp[-1].nd), (yyvsp[0].nd));
                       (yyval.nd) = new_fcall(p, (yyvsp[-2].id), (yyvsp[-1].nd));
                     }
-#line 8307 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8289 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 67: /* command: primary_value call_op operation2 command_args  */
-#line 3064 "mrbgems/mruby-compiler/core/parse.y"
+#line 3046 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-3].nd), (yyvsp[-1].id), (yyvsp[0].nd), (yyvsp[-2].num));
                     }
-#line 8315 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8297 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 68: /* command: primary_value call_op operation2 command_args cmd_brace_block  */
-#line 3068 "mrbgems/mruby-compiler/core/parse.y"
+#line 3050 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       args_with_block(p, (yyvsp[-1].nd), (yyvsp[0].nd));
                       (yyval.nd) = new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), (yyvsp[-1].nd), (yyvsp[-3].num));
                    }
-#line 8324 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8306 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 69: /* command: primary_value "::" operation2 command_args  */
-#line 3073 "mrbgems/mruby-compiler/core/parse.y"
+#line 3055 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-3].nd), (yyvsp[-1].id), (yyvsp[0].nd), tCOLON2);
                     }
-#line 8332 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8314 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 70: /* command: primary_value "::" operation2 command_args cmd_brace_block  */
-#line 3077 "mrbgems/mruby-compiler/core/parse.y"
+#line 3059 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       args_with_block(p, (yyvsp[-1].nd), (yyvsp[0].nd));
                       (yyval.nd) = new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), (yyvsp[-1].nd), tCOLON2);
                     }
-#line 8341 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8323 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 71: /* command: "'super'" command_args  */
-#line 3082 "mrbgems/mruby-compiler/core/parse.y"
+#line 3064 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_super(p, (yyvsp[0].nd));
                     }
-#line 8349 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8331 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 72: /* command: "'yield'" command_args  */
-#line 3086 "mrbgems/mruby-compiler/core/parse.y"
+#line 3068 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_yield(p, (yyvsp[0].nd));
                     }
-#line 8357 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8339 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 73: /* command: "'return'" call_args  */
-#line 3090 "mrbgems/mruby-compiler/core/parse.y"
+#line 3072 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_return(p, ret_args(p, (yyvsp[0].nd)));
                     }
-#line 8365 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8347 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 74: /* command: "'break'" call_args  */
-#line 3094 "mrbgems/mruby-compiler/core/parse.y"
+#line 3076 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_break(p, ret_args(p, (yyvsp[0].nd)));
                     }
-#line 8373 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8355 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 75: /* command: "'next'" call_args  */
-#line 3098 "mrbgems/mruby-compiler/core/parse.y"
+#line 3080 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_next(p, ret_args(p, (yyvsp[0].nd)));
                     }
-#line 8381 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8363 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 76: /* mlhs: mlhs_basic  */
-#line 3104 "mrbgems/mruby-compiler/core/parse.y"
+#line 3086 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 8389 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8371 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 77: /* mlhs: tLPAREN mlhs_inner rparen  */
-#line 3108 "mrbgems/mruby-compiler/core/parse.y"
+#line 3090 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 8397 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8379 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 79: /* mlhs_inner: tLPAREN mlhs_inner rparen  */
-#line 3115 "mrbgems/mruby-compiler/core/parse.y"
+#line 3097 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 8405 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8387 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 80: /* mlhs_basic: mlhs_list  */
-#line 3121 "mrbgems/mruby-compiler/core/parse.y"
+#line 3103 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 8413 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8395 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 81: /* mlhs_basic: mlhs_list mlhs_item  */
-#line 3125 "mrbgems/mruby-compiler/core/parse.y"
+#line 3107 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1(push((yyvsp[-1].nd),(yyvsp[0].nd)));
                     }
-#line 8421 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8403 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 82: /* mlhs_basic: mlhs_list "*" mlhs_node  */
-#line 3129 "mrbgems/mruby-compiler/core/parse.y"
+#line 3111 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list2((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8429 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8411 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 83: /* mlhs_basic: mlhs_list "*" mlhs_node ',' mlhs_post  */
-#line 3133 "mrbgems/mruby-compiler/core/parse.y"
+#line 3115 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3((yyvsp[-4].nd), (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8437 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8419 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 84: /* mlhs_basic: mlhs_list "*"  */
-#line 3137 "mrbgems/mruby-compiler/core/parse.y"
+#line 3119 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list2((yyvsp[-1].nd), new_nil(p));
                     }
-#line 8445 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8427 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 85: /* mlhs_basic: mlhs_list "*" ',' mlhs_post  */
-#line 3141 "mrbgems/mruby-compiler/core/parse.y"
+#line 3123 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3((yyvsp[-3].nd), new_nil(p), (yyvsp[0].nd));
                     }
-#line 8453 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8435 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 86: /* mlhs_basic: "*" mlhs_node  */
-#line 3145 "mrbgems/mruby-compiler/core/parse.y"
+#line 3127 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list2(0, (yyvsp[0].nd));
                     }
-#line 8461 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8443 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 87: /* mlhs_basic: "*" mlhs_node ',' mlhs_post  */
-#line 3149 "mrbgems/mruby-compiler/core/parse.y"
+#line 3131 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3(0, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8469 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8451 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 88: /* mlhs_basic: "*"  */
-#line 3153 "mrbgems/mruby-compiler/core/parse.y"
+#line 3135 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list2(0, new_nil(p));
                     }
-#line 8477 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8459 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 89: /* mlhs_basic: "*" ',' mlhs_post  */
-#line 3157 "mrbgems/mruby-compiler/core/parse.y"
+#line 3139 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3(0, new_nil(p), (yyvsp[0].nd));
                     }
-#line 8485 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8467 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 91: /* mlhs_item: tLPAREN mlhs_inner rparen  */
-#line 3164 "mrbgems/mruby-compiler/core/parse.y"
+#line 3146 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_masgn(p, (yyvsp[-1].nd), NULL);
                     }
-#line 8493 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8475 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 92: /* mlhs_list: mlhs_item ','  */
-#line 3170 "mrbgems/mruby-compiler/core/parse.y"
+#line 3152 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1((yyvsp[-1].nd));
                     }
-#line 8501 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8483 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 93: /* mlhs_list: mlhs_list mlhs_item ','  */
-#line 3174 "mrbgems/mruby-compiler/core/parse.y"
+#line 3156 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[-1].nd));
                     }
-#line 8509 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8491 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 94: /* mlhs_post: mlhs_item  */
-#line 3180 "mrbgems/mruby-compiler/core/parse.y"
+#line 3162 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 8517 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8499 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 95: /* mlhs_post: mlhs_list mlhs_item  */
-#line 3184 "mrbgems/mruby-compiler/core/parse.y"
+#line 3166 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 8525 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8507 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 96: /* mlhs_node: variable  */
-#line 3190 "mrbgems/mruby-compiler/core/parse.y"
+#line 3172 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       assignable(p, (yyvsp[0].nd));
                     }
-#line 8533 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8515 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 97: /* mlhs_node: primary_value '[' opt_call_args ']'  */
-#line 3194 "mrbgems/mruby-compiler/core/parse.y"
+#line 3176 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-3].nd), intern_op(aref), (yyvsp[-1].nd), '.');
                     }
-#line 8541 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8523 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 98: /* mlhs_node: primary_value call_op "local variable or method"  */
-#line 3198 "mrbgems/mruby-compiler/core/parse.y"
+#line 3180 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, (yyvsp[-1].num));
                     }
-#line 8549 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8531 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 99: /* mlhs_node: primary_value "::" "local variable or method"  */
-#line 3202 "mrbgems/mruby-compiler/core/parse.y"
+#line 3184 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, tCOLON2);
                     }
+#line 8539 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 100: /* mlhs_node: primary_value call_op "constant"  */
+#line 3188 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, (yyvsp[-1].num));
+                    }
+#line 8547 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 101: /* mlhs_node: primary_value "::" "constant"  */
+#line 3192 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      if (p->in_def || p->in_single)
+                        yyerror(&(yylsp[-2]), p, "dynamic constant assignment");
+                      (yyval.nd) = new_colon2(p, (yyvsp[-2].nd), (yyvsp[0].id));
+                    }
 #line 8557 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 100: /* mlhs_node: primary_value call_op "constant"  */
-#line 3206 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, (yyvsp[-1].num));
-                    }
-#line 8565 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 101: /* mlhs_node: primary_value "::" "constant"  */
-#line 3210 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      if (p->in_def || p->in_single)
-                        yyerror(&(yylsp[-2]), p, "dynamic constant assignment");
-                      (yyval.nd) = new_colon2(p, (yyvsp[-2].nd), (yyvsp[0].id));
-                    }
-#line 8575 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 102: /* mlhs_node: tCOLON3 "constant"  */
-#line 3216 "mrbgems/mruby-compiler/core/parse.y"
+#line 3198 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if (p->in_def || p->in_single)
                         yyerror(&(yylsp[-1]), p, "dynamic constant assignment");
                       (yyval.nd) = new_colon3(p, (yyvsp[0].id));
                     }
-#line 8585 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8567 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 103: /* mlhs_node: backref  */
-#line 3222 "mrbgems/mruby-compiler/core/parse.y"
+#line 3204 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       backref_error(p, (yyvsp[0].nd));
                       (yyval.nd) = 0;
                     }
-#line 8594 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8576 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 104: /* lhs: variable  */
-#line 3229 "mrbgems/mruby-compiler/core/parse.y"
+#line 3211 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       assignable(p, (yyvsp[0].nd));
                     }
-#line 8602 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8584 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 105: /* lhs: primary_value '[' opt_call_args ']'  */
-#line 3233 "mrbgems/mruby-compiler/core/parse.y"
+#line 3215 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-3].nd), intern_op(aref), (yyvsp[-1].nd), '.');
                     }
-#line 8610 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8592 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 106: /* lhs: primary_value call_op "local variable or method"  */
-#line 3237 "mrbgems/mruby-compiler/core/parse.y"
+#line 3219 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, (yyvsp[-1].num));
                     }
-#line 8618 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8600 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 107: /* lhs: primary_value "::" "local variable or method"  */
-#line 3241 "mrbgems/mruby-compiler/core/parse.y"
+#line 3223 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, tCOLON2);
                     }
+#line 8608 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 108: /* lhs: primary_value call_op "constant"  */
+#line 3227 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, (yyvsp[-1].num));
+                    }
+#line 8616 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 109: /* lhs: primary_value "::" "constant"  */
+#line 3231 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      if (p->in_def || p->in_single)
+                        yyerror(&(yylsp[-2]), p, "dynamic constant assignment");
+                      (yyval.nd) = new_colon2(p, (yyvsp[-2].nd), (yyvsp[0].id));
+                    }
 #line 8626 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 108: /* lhs: primary_value call_op "constant"  */
-#line 3245 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, (yyvsp[-1].num));
-                    }
-#line 8634 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 109: /* lhs: primary_value "::" "constant"  */
-#line 3249 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      if (p->in_def || p->in_single)
-                        yyerror(&(yylsp[-2]), p, "dynamic constant assignment");
-                      (yyval.nd) = new_colon2(p, (yyvsp[-2].nd), (yyvsp[0].id));
-                    }
-#line 8644 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 110: /* lhs: tCOLON3 "constant"  */
-#line 3255 "mrbgems/mruby-compiler/core/parse.y"
+#line 3237 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if (p->in_def || p->in_single)
                         yyerror(&(yylsp[-1]), p, "dynamic constant assignment");
                       (yyval.nd) = new_colon3(p, (yyvsp[0].id));
                     }
-#line 8654 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8636 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 111: /* lhs: backref  */
-#line 3261 "mrbgems/mruby-compiler/core/parse.y"
+#line 3243 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       backref_error(p, (yyvsp[0].nd));
                       (yyval.nd) = 0;
                     }
-#line 8663 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8645 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 112: /* lhs: "numbered parameter"  */
-#line 3266 "mrbgems/mruby-compiler/core/parse.y"
+#line 3248 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       yyerror(&(yylsp[0]), p, "can't assign to numbered parameter");
                     }
-#line 8671 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8653 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 113: /* cname: "local variable or method"  */
-#line 3272 "mrbgems/mruby-compiler/core/parse.y"
+#line 3254 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       yyerror(&(yylsp[0]), p, "class/module name must be CONSTANT");
                     }
-#line 8679 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8661 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 115: /* cpath: tCOLON3 cname  */
-#line 3279 "mrbgems/mruby-compiler/core/parse.y"
+#line 3261 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = cons(int_to_node(1), sym_to_node((yyvsp[0].id)));
                     }
-#line 8687 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8669 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 116: /* cpath: cname  */
-#line 3283 "mrbgems/mruby-compiler/core/parse.y"
+#line 3265 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = cons(int_to_node(0), sym_to_node((yyvsp[0].id)));
                     }
-#line 8695 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8677 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 117: /* cpath: primary_value "::" cname  */
-#line 3287 "mrbgems/mruby-compiler/core/parse.y"
+#line 3269 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[-2].nd));
                       (yyval.nd) = cons((yyvsp[-2].nd), sym_to_node((yyvsp[0].id)));
                     }
-#line 8704 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8686 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 121: /* fname: op  */
-#line 3297 "mrbgems/mruby-compiler/core/parse.y"
+#line 3279 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->lstate = EXPR_ENDFN;
                       (yyval.id) = (yyvsp[0].id);
                     }
-#line 8713 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8695 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 122: /* fname: reswords  */
-#line 3302 "mrbgems/mruby-compiler/core/parse.y"
+#line 3284 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->lstate = EXPR_ENDFN;
                       (yyval.id) = (yyvsp[0].id);
                     }
-#line 8722 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8704 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 125: /* undef_list: fsym  */
-#line 3313 "mrbgems/mruby-compiler/core/parse.y"
+#line 3295 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = cons(sym_to_node((yyvsp[0].id)), 0);
                     }
-#line 8730 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8712 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 126: /* $@6: %empty  */
-#line 3316 "mrbgems/mruby-compiler/core/parse.y"
+#line 3298 "mrbgems/mruby-compiler/core/parse.y"
                                  {p->lstate = EXPR_FNAME;}
-#line 8736 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8718 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 127: /* undef_list: undef_list ',' $@6 fsym  */
-#line 3317 "mrbgems/mruby-compiler/core/parse.y"
+#line 3299 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-3].nd), sym_to_node((yyvsp[0].id)));
                     }
-#line 8744 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8726 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 128: /* op: '|'  */
-#line 3322 "mrbgems/mruby-compiler/core/parse.y"
+#line 3304 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(or);     }
-#line 8750 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8732 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 129: /* op: '^'  */
-#line 3323 "mrbgems/mruby-compiler/core/parse.y"
+#line 3305 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(xor);    }
-#line 8756 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8738 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 130: /* op: '&'  */
-#line 3324 "mrbgems/mruby-compiler/core/parse.y"
+#line 3306 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(and);    }
-#line 8762 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8744 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 131: /* op: "<=>"  */
-#line 3325 "mrbgems/mruby-compiler/core/parse.y"
+#line 3307 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(cmp);    }
-#line 8768 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8750 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 132: /* op: "=="  */
-#line 3326 "mrbgems/mruby-compiler/core/parse.y"
+#line 3308 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(eq);     }
-#line 8774 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8756 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 133: /* op: "==="  */
-#line 3327 "mrbgems/mruby-compiler/core/parse.y"
+#line 3309 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(eqq);    }
-#line 8780 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8762 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 134: /* op: "=~"  */
-#line 3328 "mrbgems/mruby-compiler/core/parse.y"
+#line 3310 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(match);  }
-#line 8786 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8768 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 135: /* op: "!~"  */
-#line 3329 "mrbgems/mruby-compiler/core/parse.y"
+#line 3311 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(nmatch); }
-#line 8792 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8774 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 136: /* op: '>'  */
-#line 3330 "mrbgems/mruby-compiler/core/parse.y"
+#line 3312 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(gt);     }
-#line 8798 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8780 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 137: /* op: ">="  */
-#line 3331 "mrbgems/mruby-compiler/core/parse.y"
+#line 3313 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(ge);     }
-#line 8804 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8786 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 138: /* op: '<'  */
-#line 3332 "mrbgems/mruby-compiler/core/parse.y"
+#line 3314 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(lt);     }
-#line 8810 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8792 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 139: /* op: "<="  */
-#line 3333 "mrbgems/mruby-compiler/core/parse.y"
+#line 3315 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(le);     }
-#line 8816 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8798 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 140: /* op: "!="  */
-#line 3334 "mrbgems/mruby-compiler/core/parse.y"
+#line 3316 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(neq);    }
-#line 8822 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8804 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 141: /* op: "<<"  */
-#line 3335 "mrbgems/mruby-compiler/core/parse.y"
+#line 3317 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(lshift); }
-#line 8828 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8810 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 142: /* op: ">>"  */
-#line 3336 "mrbgems/mruby-compiler/core/parse.y"
+#line 3318 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(rshift); }
-#line 8834 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8816 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 143: /* op: '+'  */
-#line 3337 "mrbgems/mruby-compiler/core/parse.y"
+#line 3319 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(add);    }
-#line 8840 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8822 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 144: /* op: '-'  */
-#line 3338 "mrbgems/mruby-compiler/core/parse.y"
+#line 3320 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(sub);    }
-#line 8846 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8828 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 145: /* op: '*'  */
-#line 3339 "mrbgems/mruby-compiler/core/parse.y"
+#line 3321 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(mul);    }
-#line 8852 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8834 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 146: /* op: "*"  */
-#line 3340 "mrbgems/mruby-compiler/core/parse.y"
+#line 3322 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(mul);    }
-#line 8858 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8840 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 147: /* op: '/'  */
-#line 3341 "mrbgems/mruby-compiler/core/parse.y"
+#line 3323 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(div);    }
-#line 8864 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8846 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 148: /* op: '%'  */
-#line 3342 "mrbgems/mruby-compiler/core/parse.y"
+#line 3324 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(mod);    }
-#line 8870 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8852 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 149: /* op: tPOW  */
-#line 3343 "mrbgems/mruby-compiler/core/parse.y"
+#line 3325 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(pow);    }
-#line 8876 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8858 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 150: /* op: "**"  */
-#line 3344 "mrbgems/mruby-compiler/core/parse.y"
+#line 3326 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(pow);    }
-#line 8882 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8864 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 151: /* op: '!'  */
-#line 3345 "mrbgems/mruby-compiler/core/parse.y"
+#line 3327 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(not);    }
-#line 8888 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8870 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 152: /* op: '~'  */
-#line 3346 "mrbgems/mruby-compiler/core/parse.y"
+#line 3328 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(neg);    }
-#line 8894 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8876 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 153: /* op: "unary plus"  */
-#line 3347 "mrbgems/mruby-compiler/core/parse.y"
+#line 3329 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(plus);   }
-#line 8900 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8882 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 154: /* op: "unary minus"  */
-#line 3348 "mrbgems/mruby-compiler/core/parse.y"
+#line 3330 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(minus);  }
-#line 8906 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8888 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 155: /* op: tAREF  */
-#line 3349 "mrbgems/mruby-compiler/core/parse.y"
+#line 3331 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(aref);   }
-#line 8912 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8894 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 156: /* op: tASET  */
-#line 3350 "mrbgems/mruby-compiler/core/parse.y"
+#line 3332 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(aset);   }
-#line 8918 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8900 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 157: /* op: '`'  */
-#line 3351 "mrbgems/mruby-compiler/core/parse.y"
+#line 3333 "mrbgems/mruby-compiler/core/parse.y"
                                 { (yyval.id) = intern_op(tick);   }
-#line 8924 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8906 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 198: /* arg: lhs '=' arg_rhs  */
-#line 3369 "mrbgems/mruby-compiler/core/parse.y"
+#line 3351 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_asgn(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 8932 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8914 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 199: /* arg: var_lhs tOP_ASGN arg_rhs  */
-#line 3373 "mrbgems/mruby-compiler/core/parse.y"
+#line 3355 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, (yyvsp[-2].nd), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8940 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8922 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 200: /* arg: primary_value '[' opt_call_args ']' tOP_ASGN arg_rhs  */
-#line 3377 "mrbgems/mruby-compiler/core/parse.y"
+#line 3359 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, new_call(p, (yyvsp[-5].nd), intern_op(aref), (yyvsp[-3].nd), '.'), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8948 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8930 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 201: /* arg: primary_value call_op "local variable or method" tOP_ASGN arg_rhs  */
-#line 3381 "mrbgems/mruby-compiler/core/parse.y"
+#line 3363 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), 0, (yyvsp[-3].num)), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8956 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8938 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 202: /* arg: primary_value call_op "constant" tOP_ASGN arg_rhs  */
-#line 3385 "mrbgems/mruby-compiler/core/parse.y"
+#line 3367 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), 0, (yyvsp[-3].num)), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 8964 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8946 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 203: /* arg: primary_value "::" "local variable or method" tOP_ASGN arg_rhs  */
-#line 3389 "mrbgems/mruby-compiler/core/parse.y"
+#line 3371 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_op_asgn(p, new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), 0, tCOLON2), (yyvsp[-1].id), (yyvsp[0].nd));
                     }
+#line 8954 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 204: /* arg: primary_value "::" "constant" tOP_ASGN arg_rhs  */
+#line 3375 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      yyerror(&(yylsp[-4]), p, "constant re-assignment");
+                      (yyval.nd) = new_stmts(p, 0);
+                    }
+#line 8963 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 205: /* arg: tCOLON3 "constant" tOP_ASGN arg_rhs  */
+#line 3380 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      yyerror(&(yylsp[-3]), p, "constant re-assignment");
+                      (yyval.nd) = new_stmts(p, 0);
+                    }
 #line 8972 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 204: /* arg: primary_value "::" "constant" tOP_ASGN arg_rhs  */
-#line 3393 "mrbgems/mruby-compiler/core/parse.y"
+  case 206: /* arg: backref tOP_ASGN arg_rhs  */
+#line 3385 "mrbgems/mruby-compiler/core/parse.y"
                     {
-                      yyerror(&(yylsp[-4]), p, "constant re-assignment");
+                      backref_error(p, (yyvsp[-2].nd));
                       (yyval.nd) = new_stmts(p, 0);
                     }
 #line 8981 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 205: /* arg: tCOLON3 "constant" tOP_ASGN arg_rhs  */
-#line 3398 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      yyerror(&(yylsp[-3]), p, "constant re-assignment");
-                      (yyval.nd) = new_stmts(p, 0);
-                    }
-#line 8990 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 206: /* arg: backref tOP_ASGN arg_rhs  */
-#line 3403 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      backref_error(p, (yyvsp[-2].nd));
-                      (yyval.nd) = new_stmts(p, 0);
-                    }
-#line 8999 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 207: /* arg: arg ".." arg  */
-#line 3408 "mrbgems/mruby-compiler/core/parse.y"
+#line 3390 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_dot2(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 9007 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8989 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 208: /* arg: arg ".."  */
-#line 3412 "mrbgems/mruby-compiler/core/parse.y"
+#line 3394 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_dot2(p, (yyvsp[-1].nd), new_nil(p));
                     }
-#line 9015 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 8997 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 209: /* arg: tBDOT2 arg  */
-#line 3416 "mrbgems/mruby-compiler/core/parse.y"
+#line 3398 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_dot2(p, new_nil(p), (yyvsp[0].nd));
                     }
-#line 9023 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9005 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 210: /* arg: arg "..." arg  */
-#line 3420 "mrbgems/mruby-compiler/core/parse.y"
+#line 3402 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_dot3(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 9031 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9013 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 211: /* arg: arg "..."  */
-#line 3424 "mrbgems/mruby-compiler/core/parse.y"
+#line 3406 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_dot3(p, (yyvsp[-1].nd), new_nil(p));
                     }
-#line 9039 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9021 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 212: /* arg: tBDOT3 arg  */
-#line 3428 "mrbgems/mruby-compiler/core/parse.y"
+#line 3410 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_dot3(p, new_nil(p), (yyvsp[0].nd));
                     }
-#line 9047 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9029 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 213: /* arg: arg '+' arg  */
-#line 3432 "mrbgems/mruby-compiler/core/parse.y"
+#line 3414 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "+", (yyvsp[0].nd));
                     }
-#line 9055 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9037 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 214: /* arg: arg '-' arg  */
-#line 3436 "mrbgems/mruby-compiler/core/parse.y"
+#line 3418 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "-", (yyvsp[0].nd));
                     }
-#line 9063 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9045 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 215: /* arg: arg '*' arg  */
-#line 3440 "mrbgems/mruby-compiler/core/parse.y"
+#line 3422 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "*", (yyvsp[0].nd));
                     }
-#line 9071 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9053 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 216: /* arg: arg '/' arg  */
-#line 3444 "mrbgems/mruby-compiler/core/parse.y"
+#line 3426 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "/", (yyvsp[0].nd));
                     }
-#line 9079 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9061 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 217: /* arg: arg '%' arg  */
-#line 3448 "mrbgems/mruby-compiler/core/parse.y"
+#line 3430 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "%", (yyvsp[0].nd));
                     }
-#line 9087 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9069 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 218: /* arg: arg tPOW arg  */
-#line 3452 "mrbgems/mruby-compiler/core/parse.y"
+#line 3434 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "**", (yyvsp[0].nd));
                     }
-#line 9095 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9077 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 219: /* arg: tUMINUS_NUM "integer literal" tPOW arg  */
-#line 3456 "mrbgems/mruby-compiler/core/parse.y"
+#line 3438 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_negate(p, call_bin_op(p, (yyvsp[-2].nd), "**", (yyvsp[0].nd)));
                     }
-#line 9103 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9085 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 220: /* arg: tUMINUS_NUM "float literal" tPOW arg  */
-#line 3460 "mrbgems/mruby-compiler/core/parse.y"
+#line 3442 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_negate(p, call_bin_op(p, (yyvsp[-2].nd), "**", (yyvsp[0].nd)));
                     }
-#line 9111 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9093 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 221: /* arg: "unary plus" arg  */
-#line 3464 "mrbgems/mruby-compiler/core/parse.y"
+#line 3446 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_uni_op(p, (yyvsp[0].nd), "+@");
                     }
-#line 9119 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9101 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 222: /* arg: "unary minus" arg  */
-#line 3468 "mrbgems/mruby-compiler/core/parse.y"
+#line 3450 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_negate(p, (yyvsp[0].nd));
                     }
-#line 9127 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9109 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 223: /* arg: arg '|' arg  */
-#line 3472 "mrbgems/mruby-compiler/core/parse.y"
+#line 3454 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "|", (yyvsp[0].nd));
                     }
-#line 9135 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9117 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 224: /* arg: arg '^' arg  */
-#line 3476 "mrbgems/mruby-compiler/core/parse.y"
+#line 3458 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "^", (yyvsp[0].nd));
                     }
-#line 9143 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9125 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 225: /* arg: arg '&' arg  */
-#line 3480 "mrbgems/mruby-compiler/core/parse.y"
+#line 3462 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "&", (yyvsp[0].nd));
                     }
-#line 9151 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9133 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 226: /* arg: arg "<=>" arg  */
-#line 3484 "mrbgems/mruby-compiler/core/parse.y"
+#line 3466 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "<=>", (yyvsp[0].nd));
                     }
-#line 9159 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9141 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 227: /* arg: arg '>' arg  */
-#line 3488 "mrbgems/mruby-compiler/core/parse.y"
+#line 3470 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), ">", (yyvsp[0].nd));
                     }
-#line 9167 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9149 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 228: /* arg: arg ">=" arg  */
-#line 3492 "mrbgems/mruby-compiler/core/parse.y"
+#line 3474 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), ">=", (yyvsp[0].nd));
                     }
-#line 9175 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9157 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 229: /* arg: arg '<' arg  */
-#line 3496 "mrbgems/mruby-compiler/core/parse.y"
+#line 3478 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "<", (yyvsp[0].nd));
                     }
-#line 9183 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9165 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 230: /* arg: arg "<=" arg  */
-#line 3500 "mrbgems/mruby-compiler/core/parse.y"
+#line 3482 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "<=", (yyvsp[0].nd));
                     }
-#line 9191 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9173 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 231: /* arg: arg "==" arg  */
-#line 3504 "mrbgems/mruby-compiler/core/parse.y"
+#line 3486 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "==", (yyvsp[0].nd));
                     }
-#line 9199 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9181 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 232: /* arg: arg "===" arg  */
-#line 3508 "mrbgems/mruby-compiler/core/parse.y"
+#line 3490 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "===", (yyvsp[0].nd));
                     }
-#line 9207 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9189 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 233: /* arg: arg "!=" arg  */
-#line 3512 "mrbgems/mruby-compiler/core/parse.y"
+#line 3494 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "!=", (yyvsp[0].nd));
                     }
-#line 9215 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9197 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 234: /* arg: arg "=~" arg  */
-#line 3516 "mrbgems/mruby-compiler/core/parse.y"
+#line 3498 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "=~", (yyvsp[0].nd));
                     }
-#line 9223 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9205 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 235: /* arg: arg "!~" arg  */
-#line 3520 "mrbgems/mruby-compiler/core/parse.y"
+#line 3502 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "!~", (yyvsp[0].nd));
                     }
-#line 9231 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9213 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 236: /* arg: '!' arg  */
-#line 3524 "mrbgems/mruby-compiler/core/parse.y"
+#line 3506 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_uni_op(p, cond((yyvsp[0].nd)), "!");
                     }
-#line 9239 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9221 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 237: /* arg: '~' arg  */
-#line 3528 "mrbgems/mruby-compiler/core/parse.y"
+#line 3510 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_uni_op(p, cond((yyvsp[0].nd)), "~");
                     }
-#line 9247 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9229 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 238: /* arg: arg "<<" arg  */
-#line 3532 "mrbgems/mruby-compiler/core/parse.y"
+#line 3514 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), "<<", (yyvsp[0].nd));
                     }
-#line 9255 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9237 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 239: /* arg: arg ">>" arg  */
-#line 3536 "mrbgems/mruby-compiler/core/parse.y"
+#line 3518 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_bin_op(p, (yyvsp[-2].nd), ">>", (yyvsp[0].nd));
                     }
-#line 9263 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9245 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 240: /* arg: arg "&&" arg  */
-#line 3540 "mrbgems/mruby-compiler/core/parse.y"
+#line 3522 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_and(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 9271 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9253 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 241: /* arg: arg "||" arg  */
-#line 3544 "mrbgems/mruby-compiler/core/parse.y"
+#line 3526 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_or(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 9279 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9261 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 242: /* arg: arg '?' arg opt_nl ':' arg  */
-#line 3548 "mrbgems/mruby-compiler/core/parse.y"
+#line 3530 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_if(p, cond((yyvsp[-5].nd)), (yyvsp[-3].nd), (yyvsp[0].nd));
                     }
-#line 9287 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9269 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 243: /* arg: arg '?' arg opt_nl "label" arg  */
-#line 3552 "mrbgems/mruby-compiler/core/parse.y"
+#line 3534 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_if(p, cond((yyvsp[-5].nd)), (yyvsp[-3].nd), (yyvsp[0].nd));
                     }
-#line 9295 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9277 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 244: /* arg: defn_head f_opt_arglist_paren '=' arg  */
-#line 3556 "mrbgems/mruby-compiler/core/parse.y"
+#line 3538 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-3].nd);
                       endless_method_name(p, (yyvsp[-3].nd));
@@ -9304,11 +9286,11 @@ yyreduce:
                       nvars_unnest(p);
                       p->in_def--;
                     }
-#line 9308 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9290 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 245: /* arg: defn_head f_opt_arglist_paren '=' arg "'rescue' modifier" arg  */
-#line 3565 "mrbgems/mruby-compiler/core/parse.y"
+#line 3547 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-5].nd);
                       endless_method_name(p, (yyvsp[-5].nd));
@@ -9317,11 +9299,11 @@ yyreduce:
                       nvars_unnest(p);
                       p->in_def--;
                     }
-#line 9321 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9303 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 246: /* arg: defs_head f_opt_arglist_paren '=' arg  */
-#line 3574 "mrbgems/mruby-compiler/core/parse.y"
+#line 3556 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-3].nd);
                       void_expr_error(p, (yyvsp[0].nd));
@@ -9330,11 +9312,11 @@ yyreduce:
                       p->in_def--;
                       p->in_single--;
                     }
-#line 9334 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9316 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 247: /* arg: defs_head f_opt_arglist_paren '=' arg "'rescue' modifier" arg  */
-#line 3583 "mrbgems/mruby-compiler/core/parse.y"
+#line 3565 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-5].nd);
                       void_expr_error(p, (yyvsp[-2].nd));
@@ -9343,68 +9325,68 @@ yyreduce:
                       p->in_def--;
                       p->in_single--;
                     }
-#line 9347 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9329 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 248: /* arg: primary  */
-#line 3592 "mrbgems/mruby-compiler/core/parse.y"
+#line 3574 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 9355 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9337 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 250: /* aref_args: args trailer  */
-#line 3599 "mrbgems/mruby-compiler/core/parse.y"
+#line 3581 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 9363 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9345 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 251: /* aref_args: args comma assocs trailer  */
-#line 3603 "mrbgems/mruby-compiler/core/parse.y"
+#line 3585 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-3].nd), new_hash(p, (yyvsp[-1].nd)));
                     }
-#line 9371 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9353 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 252: /* aref_args: assocs trailer  */
-#line 3607 "mrbgems/mruby-compiler/core/parse.y"
+#line 3589 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = cons(new_kw_hash(p, (yyvsp[-1].nd)), 0);
                     }
-#line 9379 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9361 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 253: /* arg_rhs: arg  */
-#line 3613 "mrbgems/mruby-compiler/core/parse.y"
+#line 3595 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 9387 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9369 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 254: /* arg_rhs: arg "'rescue' modifier" arg  */
-#line 3617 "mrbgems/mruby-compiler/core/parse.y"
+#line 3599 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[-2].nd));
                       (yyval.nd) = new_mod_rescue(p, (yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 9396 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9378 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 255: /* paren_args: '(' opt_call_args ')'  */
-#line 3624 "mrbgems/mruby-compiler/core/parse.y"
+#line 3606 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 9404 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9386 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 256: /* paren_args: '(' args comma tBDOT3 rparen  */
-#line 3628 "mrbgems/mruby-compiler/core/parse.y"
+#line 3610 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       mrb_sym r = intern_op(mul);
                       mrb_sym k = intern_op(pow);
@@ -9413,11 +9395,11 @@ yyreduce:
                                         new_kw_hash(p, list1(cons(new_kw_rest_args(p, 0), new_lvar(p, k)))),
                                         new_block_arg(p, new_lvar(p, b)));
                     }
-#line 9417 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9399 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 257: /* paren_args: '(' tBDOT3 rparen  */
-#line 3637 "mrbgems/mruby-compiler/core/parse.y"
+#line 3619 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       mrb_sym r = intern_op(mul);
                       mrb_sym k = intern_op(pow);
@@ -9432,225 +9414,243 @@ yyreduce:
                         (yyval.nd) = 0;
                       }
                     }
-#line 9436 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9418 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 262: /* opt_call_args: args comma  */
-#line 3660 "mrbgems/mruby-compiler/core/parse.y"
+#line 3642 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_callargs(p,(yyvsp[-1].nd),0,0);
                     }
-#line 9444 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9426 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 263: /* opt_call_args: args comma assocs comma  */
-#line 3664 "mrbgems/mruby-compiler/core/parse.y"
+#line 3646 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_callargs(p,(yyvsp[-3].nd),new_kw_hash(p,(yyvsp[-1].nd)),0);
                     }
-#line 9452 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9434 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 264: /* opt_call_args: assocs comma  */
-#line 3668 "mrbgems/mruby-compiler/core/parse.y"
+#line 3650 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_callargs(p,0,new_kw_hash(p,(yyvsp[-1].nd)),0);
                     }
-#line 9460 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9442 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 265: /* call_args: command  */
-#line 3674 "mrbgems/mruby-compiler/core/parse.y"
+#line 3656 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = new_callargs(p, list1((yyvsp[0].nd)), 0, 0);
                     }
-#line 9469 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9451 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 266: /* call_args: args opt_block_arg  */
-#line 3679 "mrbgems/mruby-compiler/core/parse.y"
+#line 3661 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_callargs(p, (yyvsp[-1].nd), 0, (yyvsp[0].nd));
                     }
-#line 9477 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9459 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 267: /* call_args: assocs opt_block_arg  */
-#line 3683 "mrbgems/mruby-compiler/core/parse.y"
+#line 3665 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_callargs(p, 0, new_kw_hash(p, (yyvsp[-1].nd)), (yyvsp[0].nd));
                     }
-#line 9485 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9467 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 268: /* call_args: args comma assocs opt_block_arg  */
-#line 3687 "mrbgems/mruby-compiler/core/parse.y"
+#line 3669 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_callargs(p, (yyvsp[-3].nd), new_kw_hash(p, (yyvsp[-1].nd)), (yyvsp[0].nd));
                     }
-#line 9493 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9475 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 269: /* call_args: block_arg  */
-#line 3691 "mrbgems/mruby-compiler/core/parse.y"
+#line 3673 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_callargs(p, 0, 0, (yyvsp[0].nd));
                     }
-#line 9501 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9483 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 270: /* @7: %empty  */
-#line 3696 "mrbgems/mruby-compiler/core/parse.y"
+#line 3678 "mrbgems/mruby-compiler/core/parse.y"
                    {
                       (yyval.stack) = p->cmdarg_stack;
                       CMDARG_PUSH(1);
                     }
-#line 9510 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9492 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 271: /* command_args: @7 call_args  */
-#line 3701 "mrbgems/mruby-compiler/core/parse.y"
+#line 3683 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->cmdarg_stack = (yyvsp[-1].stack);
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 9519 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9501 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 272: /* block_arg: "&" arg  */
-#line 3708 "mrbgems/mruby-compiler/core/parse.y"
+#line 3690 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_block_arg(p, (yyvsp[0].nd));
                     }
-#line 9527 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9509 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 273: /* block_arg: "&"  */
-#line 3712 "mrbgems/mruby-compiler/core/parse.y"
+#line 3694 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_block_arg(p, 0);
                     }
-#line 9535 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9517 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 274: /* opt_block_arg: comma block_arg  */
-#line 3718 "mrbgems/mruby-compiler/core/parse.y"
+#line 3700 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 9543 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9525 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 275: /* opt_block_arg: none  */
-#line 3722 "mrbgems/mruby-compiler/core/parse.y"
+#line 3704 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = 0;
                     }
-#line 9551 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9533 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 277: /* args: arg  */
-#line 3731 "mrbgems/mruby-compiler/core/parse.y"
+#line 3713 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 9560 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9542 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 278: /* args: "*"  */
-#line 3736 "mrbgems/mruby-compiler/core/parse.y"
+#line 3718 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1(new_splat(p, new_lvar(p, intern_op(mul))));
                     }
-#line 9568 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9550 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 279: /* args: "*" arg  */
-#line 3740 "mrbgems/mruby-compiler/core/parse.y"
+#line 3722 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1(new_splat(p, (yyvsp[0].nd)));
                     }
-#line 9576 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9558 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 280: /* args: args comma arg  */
-#line 3744 "mrbgems/mruby-compiler/core/parse.y"
+#line 3726 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 9585 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9567 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 281: /* args: args comma "*"  */
-#line 3749 "mrbgems/mruby-compiler/core/parse.y"
+#line 3731 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), new_splat(p, new_lvar(p, intern_op(mul))));
                     }
-#line 9593 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9575 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 282: /* args: args comma "*" arg  */
-#line 3753 "mrbgems/mruby-compiler/core/parse.y"
+#line 3735 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-3].nd), new_splat(p, (yyvsp[0].nd)));
                     }
-#line 9601 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9583 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 283: /* mrhs: args comma arg  */
-#line 3759 "mrbgems/mruby-compiler/core/parse.y"
+#line 3741 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 9610 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9592 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 284: /* mrhs: args comma "*" arg  */
-#line 3764 "mrbgems/mruby-compiler/core/parse.y"
+#line 3746 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-3].nd), new_splat(p, (yyvsp[0].nd)));
                     }
-#line 9618 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9600 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 285: /* mrhs: "*" arg  */
-#line 3768 "mrbgems/mruby-compiler/core/parse.y"
+#line 3750 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1(new_splat(p, (yyvsp[0].nd)));
                     }
-#line 9626 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9608 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 287: /* primary: string  */
-#line 3775 "mrbgems/mruby-compiler/core/parse.y"
+#line 3757 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_str(p, (yyvsp[0].nd));
                     }
-#line 9634 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9616 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 288: /* primary: xstring  */
-#line 3779 "mrbgems/mruby-compiler/core/parse.y"
+#line 3761 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_xstr(p, (yyvsp[0].nd));
                     }
-#line 9642 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9624 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 293: /* primary: "method"  */
-#line 3787 "mrbgems/mruby-compiler/core/parse.y"
+#line 3769 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_fcall(p, (yyvsp[0].id), 0);
                     }
+#line 9632 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 294: /* @8: %empty  */
+#line 3773 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.stack) = p->cmdarg_stack;
+                      p->cmdarg_stack = 0;
+                    }
+#line 9641 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 295: /* primary: "'begin'" @8 bodystmt "'end'"  */
+#line 3779 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      p->cmdarg_stack = (yyvsp[-2].stack);
+                      (yyval.nd) = new_begin(p, (yyvsp[-1].nd));
+                    }
 #line 9650 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 294: /* @8: %empty  */
-#line 3791 "mrbgems/mruby-compiler/core/parse.y"
+  case 296: /* @9: %empty  */
+#line 3784 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.stack) = p->cmdarg_stack;
                       p->cmdarg_stack = 0;
@@ -9658,164 +9658,146 @@ yyreduce:
 #line 9659 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 295: /* primary: "'begin'" @8 bodystmt "'end'"  */
-#line 3797 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      p->cmdarg_stack = (yyvsp[-2].stack);
-                      (yyval.nd) = new_begin(p, (yyvsp[-1].nd));
-                    }
-#line 9668 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 296: /* @9: %empty  */
-#line 3802 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.stack) = p->cmdarg_stack;
-                      p->cmdarg_stack = 0;
-                    }
-#line 9677 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 297: /* $@10: %empty  */
-#line 3806 "mrbgems/mruby-compiler/core/parse.y"
+#line 3788 "mrbgems/mruby-compiler/core/parse.y"
                        {p->lstate = EXPR_ENDARG;}
-#line 9683 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9665 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 298: /* primary: "(" @9 stmt $@10 rparen  */
-#line 3807 "mrbgems/mruby-compiler/core/parse.y"
+#line 3789 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->cmdarg_stack = (yyvsp[-3].stack);
                       (yyval.nd) = (yyvsp[-2].nd);
                     }
-#line 9692 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9674 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 299: /* $@11: %empty  */
-#line 3811 "mrbgems/mruby-compiler/core/parse.y"
+#line 3793 "mrbgems/mruby-compiler/core/parse.y"
                               {p->lstate = EXPR_ENDARG;}
-#line 9698 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9680 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 300: /* primary: "(" $@11 rparen  */
-#line 3812 "mrbgems/mruby-compiler/core/parse.y"
+#line 3794 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_nil(p);
                     }
-#line 9706 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9688 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 301: /* primary: tLPAREN compstmt ')'  */
-#line 3816 "mrbgems/mruby-compiler/core/parse.y"
+#line 3798 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 9714 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9696 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 302: /* primary: primary_value "::" "constant"  */
-#line 3820 "mrbgems/mruby-compiler/core/parse.y"
+#line 3802 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_colon2(p, (yyvsp[-2].nd), (yyvsp[0].id));
                     }
-#line 9722 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9704 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 303: /* primary: tCOLON3 "constant"  */
-#line 3824 "mrbgems/mruby-compiler/core/parse.y"
+#line 3806 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_colon3(p, (yyvsp[0].id));
                     }
-#line 9730 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9712 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 304: /* primary: "[" aref_args ']'  */
-#line 3828 "mrbgems/mruby-compiler/core/parse.y"
+#line 3810 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_array(p, (yyvsp[-1].nd));
                     }
-#line 9738 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9720 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 305: /* primary: tLBRACE assoc_list '}'  */
-#line 3832 "mrbgems/mruby-compiler/core/parse.y"
+#line 3814 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_hash(p, (yyvsp[-1].nd));
                     }
-#line 9746 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9728 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 306: /* primary: "'return'"  */
-#line 3836 "mrbgems/mruby-compiler/core/parse.y"
+#line 3818 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_return(p, 0);
                     }
-#line 9754 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9736 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 307: /* primary: "'yield'" opt_paren_args  */
-#line 3840 "mrbgems/mruby-compiler/core/parse.y"
+#line 3822 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_yield(p, (yyvsp[0].nd));
                     }
-#line 9762 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9744 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 308: /* primary: "'not'" '(' expr rparen  */
-#line 3844 "mrbgems/mruby-compiler/core/parse.y"
+#line 3826 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_uni_op(p, cond((yyvsp[-1].nd)), "!");
                     }
-#line 9770 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9752 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 309: /* primary: "'not'" '(' rparen  */
-#line 3848 "mrbgems/mruby-compiler/core/parse.y"
+#line 3830 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = call_uni_op(p, new_nil(p), "!");
                     }
-#line 9778 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9760 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 310: /* primary: operation brace_block  */
-#line 3852 "mrbgems/mruby-compiler/core/parse.y"
+#line 3834 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_fcall(p, (yyvsp[-1].id), new_callargs(p, 0, 0, (yyvsp[0].nd)));
                     }
-#line 9786 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9768 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 312: /* primary: method_call brace_block  */
-#line 3857 "mrbgems/mruby-compiler/core/parse.y"
+#line 3839 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       call_with_block(p, (yyvsp[-1].nd), (yyvsp[0].nd));
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 9795 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9777 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 313: /* @12: %empty  */
-#line 3862 "mrbgems/mruby-compiler/core/parse.y"
+#line 3844 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_nest(p);
                       nvars_nest(p);
                       (yyval.num) = p->lpar_beg;
                       p->lpar_beg = ++p->paren_nest;
                     }
-#line 9806 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9788 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 314: /* @13: %empty  */
-#line 3869 "mrbgems/mruby-compiler/core/parse.y"
+#line 3851 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.stack) = p->cmdarg_stack;
                       p->cmdarg_stack = 0;
                     }
-#line 9815 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9797 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 315: /* primary: "->" @12 f_larglist @13 lambda_body  */
-#line 3874 "mrbgems/mruby-compiler/core/parse.y"
+#line 3856 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->lpar_beg = (yyvsp[-3].num);
                       (yyval.nd) = new_lambda(p, (yyvsp[-2].nd), (yyvsp[0].nd));
@@ -9824,149 +9806,149 @@ yyreduce:
                       p->cmdarg_stack = (yyvsp[-1].stack);
                       CMDARG_LEXPOP();
                     }
-#line 9828 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9810 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 316: /* primary: "'if'" expr_value then compstmt if_tail "'end'"  */
-#line 3886 "mrbgems/mruby-compiler/core/parse.y"
+#line 3868 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_if(p, cond((yyvsp[-4].nd)), (yyvsp[-2].nd), (yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-5].num));
                     }
-#line 9837 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9819 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 317: /* primary: "'unless'" expr_value then compstmt opt_else "'end'"  */
-#line 3894 "mrbgems/mruby-compiler/core/parse.y"
+#line 3876 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_unless(p, cond((yyvsp[-4].nd)), (yyvsp[-2].nd), (yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-5].num));
                     }
-#line 9846 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9828 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 318: /* $@14: %empty  */
-#line 3898 "mrbgems/mruby-compiler/core/parse.y"
+#line 3880 "mrbgems/mruby-compiler/core/parse.y"
                                 {COND_PUSH(1);}
-#line 9852 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9834 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 319: /* $@15: %empty  */
-#line 3898 "mrbgems/mruby-compiler/core/parse.y"
+#line 3880 "mrbgems/mruby-compiler/core/parse.y"
                                                               {COND_POP();}
-#line 9858 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9840 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 320: /* primary: "'while'" $@14 expr_value do $@15 compstmt "'end'"  */
-#line 3901 "mrbgems/mruby-compiler/core/parse.y"
+#line 3883 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_while(p, cond((yyvsp[-4].nd)), (yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-6].num));
                     }
-#line 9867 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9849 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 321: /* $@16: %empty  */
-#line 3905 "mrbgems/mruby-compiler/core/parse.y"
+#line 3887 "mrbgems/mruby-compiler/core/parse.y"
                                 {COND_PUSH(1);}
-#line 9873 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9855 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 322: /* $@17: %empty  */
-#line 3905 "mrbgems/mruby-compiler/core/parse.y"
+#line 3887 "mrbgems/mruby-compiler/core/parse.y"
                                                               {COND_POP();}
-#line 9879 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9861 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 323: /* primary: "'until'" $@16 expr_value do $@17 compstmt "'end'"  */
-#line 3908 "mrbgems/mruby-compiler/core/parse.y"
+#line 3890 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_until(p, cond((yyvsp[-4].nd)), (yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-6].num));
                     }
-#line 9888 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9870 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 324: /* primary: "'case'" expr_value opt_terms case_body "'end'"  */
-#line 3915 "mrbgems/mruby-compiler/core/parse.y"
+#line 3897 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_case(p, (yyvsp[-3].nd), (yyvsp[-1].nd));
                     }
-#line 9896 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9878 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 325: /* primary: "'case'" opt_terms case_body "'end'"  */
-#line 3919 "mrbgems/mruby-compiler/core/parse.y"
+#line 3901 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_case(p, 0, (yyvsp[-1].nd));
                     }
-#line 9904 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9886 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 326: /* $@18: %empty  */
-#line 3923 "mrbgems/mruby-compiler/core/parse.y"
+#line 3905 "mrbgems/mruby-compiler/core/parse.y"
                   {COND_PUSH(1);}
-#line 9910 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9892 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 327: /* $@19: %empty  */
-#line 3925 "mrbgems/mruby-compiler/core/parse.y"
+#line 3907 "mrbgems/mruby-compiler/core/parse.y"
                   {COND_POP();}
-#line 9916 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9898 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 328: /* primary: "'for'" for_var "'in'" $@18 expr_value do $@19 compstmt "'end'"  */
-#line 3928 "mrbgems/mruby-compiler/core/parse.y"
+#line 3910 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_for(p, (yyvsp[-7].nd), (yyvsp[-4].nd), (yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-8].num));
                     }
-#line 9925 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9907 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 329: /* @20: %empty  */
-#line 3934 "mrbgems/mruby-compiler/core/parse.y"
+#line 3916 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if (p->in_def || p->in_single)
                         yyerror(&(yylsp[-2]), p, "class definition in method body");
                       (yyval.nd) = local_switch(p);
                       nvars_block(p);
                     }
-#line 9936 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9918 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 330: /* primary: "'class'" cpath superclass @20 bodystmt "'end'"  */
-#line 3942 "mrbgems/mruby-compiler/core/parse.y"
+#line 3924 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_class(p, (yyvsp[-4].nd), (yyvsp[-3].nd), (yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-5].num));
                       local_resume(p, (yyvsp[-2].nd));
                       nvars_unnest(p);
                     }
-#line 9947 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9929 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 331: /* @21: %empty  */
-#line 3950 "mrbgems/mruby-compiler/core/parse.y"
+#line 3932 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.num) = p->in_def;
                       p->in_def = 0;
                     }
-#line 9956 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9938 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 332: /* @22: %empty  */
-#line 3955 "mrbgems/mruby-compiler/core/parse.y"
+#line 3937 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = cons(local_switch(p), int_to_node(p->in_single));
                       nvars_block(p);
                       p->in_single = 0;
                     }
-#line 9966 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9948 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 333: /* primary: "'class'" "<<" expr @21 term @22 bodystmt "'end'"  */
-#line 3962 "mrbgems/mruby-compiler/core/parse.y"
+#line 3944 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_sclass(p, (yyvsp[-5].nd), (yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-7].num));
@@ -9975,44 +9957,44 @@ yyreduce:
                       p->in_def = (yyvsp[-4].num);
                       p->in_single = node_to_int((yyvsp[-2].nd)->cdr);
                     }
-#line 9979 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9961 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 334: /* @23: %empty  */
-#line 3972 "mrbgems/mruby-compiler/core/parse.y"
+#line 3954 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if (p->in_def || p->in_single)
                         yyerror(&(yylsp[-1]), p, "module definition in method body");
                       (yyval.nd) = local_switch(p);
                       nvars_block(p);
                     }
-#line 9990 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9972 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 335: /* primary: "'module'" cpath @23 bodystmt "'end'"  */
-#line 3980 "mrbgems/mruby-compiler/core/parse.y"
+#line 3962 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_module(p, (yyvsp[-3].nd), (yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-4].num));
                       local_resume(p, (yyvsp[-2].nd));
                       nvars_unnest(p);
                     }
-#line 10001 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9983 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 336: /* primary: defn_head f_arglist bodystmt "'end'"  */
-#line 3990 "mrbgems/mruby-compiler/core/parse.y"
+#line 3972 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-3].nd);
                       defn_setup(p, (yyval.nd), (yyvsp[-2].nd), (yyvsp[-1].nd));
                       nvars_unnest(p);
                       p->in_def--;
                     }
-#line 10012 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 9994 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 337: /* primary: defs_head f_arglist bodystmt "'end'"  */
-#line 4000 "mrbgems/mruby-compiler/core/parse.y"
+#line 3982 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-3].nd);
                       defs_setup(p, (yyval.nd), (yyvsp[-2].nd), (yyvsp[-1].nd));
@@ -10020,453 +10002,453 @@ yyreduce:
                       p->in_def--;
                       p->in_single--;
                     }
-#line 10024 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10006 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 338: /* primary: "'break'"  */
-#line 4008 "mrbgems/mruby-compiler/core/parse.y"
+#line 3990 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_break(p, 0);
                     }
-#line 10032 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10014 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 339: /* primary: "'next'"  */
-#line 4012 "mrbgems/mruby-compiler/core/parse.y"
+#line 3994 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_next(p, 0);
                     }
-#line 10040 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10022 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 340: /* primary: "'redo'"  */
-#line 4016 "mrbgems/mruby-compiler/core/parse.y"
+#line 3998 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_redo(p);
                     }
-#line 10048 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10030 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 341: /* primary: "'retry'"  */
-#line 4020 "mrbgems/mruby-compiler/core/parse.y"
+#line 4002 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_retry(p);
                     }
-#line 10056 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10038 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 342: /* primary_value: primary  */
-#line 4026 "mrbgems/mruby-compiler/core/parse.y"
+#line 4008 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                       if (!(yyval.nd)) (yyval.nd) = new_nil(p);
                     }
-#line 10065 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10047 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 349: /* if_tail: "'elsif'" expr_value then compstmt if_tail  */
-#line 4045 "mrbgems/mruby-compiler/core/parse.y"
+#line 4027 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_if(p, cond((yyvsp[-3].nd)), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10073 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10055 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 351: /* opt_else: "'else'" compstmt  */
-#line 4052 "mrbgems/mruby-compiler/core/parse.y"
+#line 4034 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 10081 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10063 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 352: /* for_var: lhs  */
-#line 4058 "mrbgems/mruby-compiler/core/parse.y"
+#line 4040 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1(list1((yyvsp[0].nd)));
                     }
-#line 10089 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10071 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 354: /* f_margs: f_arg  */
-#line 4065 "mrbgems/mruby-compiler/core/parse.y"
+#line 4047 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3((yyvsp[0].nd),0,0);
                     }
-#line 10097 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10079 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 355: /* f_margs: f_arg ',' "*" f_norm_arg  */
-#line 4069 "mrbgems/mruby-compiler/core/parse.y"
+#line 4051 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3((yyvsp[-3].nd), new_arg(p, (yyvsp[0].id)), 0);
                     }
-#line 10105 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10087 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 356: /* f_margs: f_arg ',' "*" f_norm_arg ',' f_arg  */
-#line 4073 "mrbgems/mruby-compiler/core/parse.y"
+#line 4055 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3((yyvsp[-5].nd), new_arg(p, (yyvsp[-2].id)), (yyvsp[0].nd));
                     }
-#line 10113 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10095 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 357: /* f_margs: f_arg ',' "*"  */
-#line 4077 "mrbgems/mruby-compiler/core/parse.y"
+#line 4059 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_f(p, intern_op(mul));
                       (yyval.nd) = list3((yyvsp[-2].nd), int_to_node(-1), 0);
                     }
-#line 10122 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10104 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 358: /* f_margs: f_arg ',' "*" ',' f_arg  */
-#line 4082 "mrbgems/mruby-compiler/core/parse.y"
+#line 4064 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3((yyvsp[-4].nd), int_to_node(-1), (yyvsp[0].nd));
                     }
-#line 10130 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10112 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 359: /* f_margs: "*" f_norm_arg  */
-#line 4086 "mrbgems/mruby-compiler/core/parse.y"
+#line 4068 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3(0, new_arg(p, (yyvsp[0].id)), 0);
                     }
-#line 10138 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10120 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 360: /* f_margs: "*" f_norm_arg ',' f_arg  */
-#line 4090 "mrbgems/mruby-compiler/core/parse.y"
+#line 4072 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3(0, new_arg(p, (yyvsp[-2].id)), (yyvsp[0].nd));
                     }
-#line 10146 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10128 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 361: /* f_margs: "*"  */
-#line 4094 "mrbgems/mruby-compiler/core/parse.y"
+#line 4076 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_f(p, intern_op(mul));
                       (yyval.nd) = list3(0, int_to_node(-1), 0);
                     }
-#line 10155 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10137 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 362: /* $@24: %empty  */
-#line 4099 "mrbgems/mruby-compiler/core/parse.y"
+#line 4081 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_f(p, intern_op(mul));
                     }
-#line 10163 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10145 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 363: /* f_margs: "*" ',' $@24 f_arg  */
-#line 4103 "mrbgems/mruby-compiler/core/parse.y"
+#line 4085 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list3(0, int_to_node(-1), (yyvsp[0].nd));
                     }
-#line 10171 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10153 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 364: /* block_args_tail: f_block_kwarg ',' f_kwrest opt_f_block_arg  */
-#line 4109 "mrbgems/mruby-compiler/core/parse.y"
+#line 4091 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, (yyvsp[-3].nd), (yyvsp[-1].nd), (yyvsp[0].id));
                     }
-#line 10179 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10161 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 365: /* block_args_tail: f_block_kwarg opt_f_block_arg  */
-#line 4113 "mrbgems/mruby-compiler/core/parse.y"
+#line 4095 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, (yyvsp[-1].nd), 0, (yyvsp[0].id));
                     }
-#line 10187 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10169 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 366: /* block_args_tail: f_kwrest opt_f_block_arg  */
-#line 4117 "mrbgems/mruby-compiler/core/parse.y"
+#line 4099 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, 0, (yyvsp[-1].nd), (yyvsp[0].id));
                     }
-#line 10195 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10177 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 367: /* block_args_tail: f_block_arg  */
-#line 4121 "mrbgems/mruby-compiler/core/parse.y"
+#line 4103 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, 0, 0, (yyvsp[0].id));
                     }
-#line 10203 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10185 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 368: /* opt_block_args_tail: ',' block_args_tail  */
-#line 4127 "mrbgems/mruby-compiler/core/parse.y"
+#line 4109 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 10211 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10193 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 369: /* opt_block_args_tail: %empty  */
-#line 4131 "mrbgems/mruby-compiler/core/parse.y"
+#line 4113 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, 0, 0, 0);
                     }
-#line 10219 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10201 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 370: /* block_param: f_arg ',' f_block_optarg ',' f_rest_arg opt_block_args_tail  */
-#line 4137 "mrbgems/mruby-compiler/core/parse.y"
+#line 4119 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-5].nd), (yyvsp[-3].nd), (yyvsp[-1].id), 0, (yyvsp[0].nd));
                     }
-#line 10227 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10209 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 371: /* block_param: f_arg ',' f_block_optarg ',' f_rest_arg ',' f_arg opt_block_args_tail  */
-#line 4141 "mrbgems/mruby-compiler/core/parse.y"
+#line 4123 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-7].nd), (yyvsp[-5].nd), (yyvsp[-3].id), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10235 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10217 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 372: /* block_param: f_arg ',' f_block_optarg opt_block_args_tail  */
-#line 4145 "mrbgems/mruby-compiler/core/parse.y"
+#line 4127 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-3].nd), (yyvsp[-1].nd), 0, 0, (yyvsp[0].nd));
                     }
-#line 10243 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10225 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 373: /* block_param: f_arg ',' f_block_optarg ',' f_arg opt_block_args_tail  */
-#line 4149 "mrbgems/mruby-compiler/core/parse.y"
+#line 4131 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-5].nd), (yyvsp[-3].nd), 0, (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10251 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10233 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 374: /* block_param: f_arg ',' f_rest_arg opt_block_args_tail  */
-#line 4153 "mrbgems/mruby-compiler/core/parse.y"
+#line 4135 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-3].nd), 0, (yyvsp[-1].id), 0, (yyvsp[0].nd));
                     }
-#line 10259 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10241 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 375: /* block_param: f_arg ',' opt_block_args_tail  */
-#line 4157 "mrbgems/mruby-compiler/core/parse.y"
+#line 4139 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-2].nd), 0, 0, 0, (yyvsp[0].nd));
                     }
-#line 10267 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10249 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 376: /* block_param: f_arg ',' f_rest_arg ',' f_arg opt_block_args_tail  */
-#line 4161 "mrbgems/mruby-compiler/core/parse.y"
+#line 4143 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-5].nd), 0, (yyvsp[-3].id), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10275 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10257 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 377: /* block_param: f_arg opt_block_args_tail  */
-#line 4165 "mrbgems/mruby-compiler/core/parse.y"
+#line 4147 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-1].nd), 0, 0, 0, (yyvsp[0].nd));
                     }
-#line 10283 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10265 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 378: /* block_param: f_block_optarg ',' f_rest_arg opt_block_args_tail  */
-#line 4169 "mrbgems/mruby-compiler/core/parse.y"
+#line 4151 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, (yyvsp[-3].nd), (yyvsp[-1].id), 0, (yyvsp[0].nd));
                     }
-#line 10291 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10273 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 379: /* block_param: f_block_optarg ',' f_rest_arg ',' f_arg opt_block_args_tail  */
-#line 4173 "mrbgems/mruby-compiler/core/parse.y"
+#line 4155 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, (yyvsp[-5].nd), (yyvsp[-3].id), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10299 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10281 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 380: /* block_param: f_block_optarg opt_block_args_tail  */
-#line 4177 "mrbgems/mruby-compiler/core/parse.y"
+#line 4159 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, (yyvsp[-1].nd), 0, 0, (yyvsp[0].nd));
                     }
-#line 10307 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10289 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 381: /* block_param: f_block_optarg ',' f_arg opt_block_args_tail  */
-#line 4181 "mrbgems/mruby-compiler/core/parse.y"
+#line 4163 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, (yyvsp[-3].nd), 0, (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10315 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10297 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 382: /* block_param: f_rest_arg opt_block_args_tail  */
-#line 4185 "mrbgems/mruby-compiler/core/parse.y"
+#line 4167 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, 0, (yyvsp[-1].id), 0, (yyvsp[0].nd));
                     }
-#line 10323 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10305 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 383: /* block_param: f_rest_arg ',' f_arg opt_block_args_tail  */
-#line 4189 "mrbgems/mruby-compiler/core/parse.y"
+#line 4171 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, 0, (yyvsp[-3].id), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10331 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10313 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 384: /* block_param: block_args_tail  */
-#line 4193 "mrbgems/mruby-compiler/core/parse.y"
+#line 4175 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, 0, 0, 0, (yyvsp[0].nd));
                     }
-#line 10339 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10321 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 385: /* opt_block_param: none  */
-#line 4199 "mrbgems/mruby-compiler/core/parse.y"
+#line 4181 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_blk(p);
                       (yyval.nd) = 0;
                     }
-#line 10348 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10330 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 386: /* opt_block_param: block_param_def  */
-#line 4204 "mrbgems/mruby-compiler/core/parse.y"
+#line 4186 "mrbgems/mruby-compiler/core/parse.y"
                    {
                       p->cmd_start = TRUE;
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 10357 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10339 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 387: /* $@25: %empty  */
-#line 4210 "mrbgems/mruby-compiler/core/parse.y"
+#line 4192 "mrbgems/mruby-compiler/core/parse.y"
                       {local_add_blk(p);}
-#line 10363 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10345 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 388: /* block_param_def: '|' $@25 opt_bv_decl '|'  */
-#line 4211 "mrbgems/mruby-compiler/core/parse.y"
+#line 4193 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = 0;
                     }
-#line 10371 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10353 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 389: /* block_param_def: "||"  */
-#line 4215 "mrbgems/mruby-compiler/core/parse.y"
+#line 4197 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_blk(p);
                       (yyval.nd) = 0;
                     }
-#line 10380 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10362 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 390: /* block_param_def: '|' block_param opt_bv_decl '|'  */
-#line 4220 "mrbgems/mruby-compiler/core/parse.y"
+#line 4202 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-2].nd);
                     }
-#line 10388 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10370 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 391: /* opt_bv_decl: opt_nl  */
-#line 4227 "mrbgems/mruby-compiler/core/parse.y"
+#line 4209 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = 0;
                     }
-#line 10396 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10378 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 392: /* opt_bv_decl: opt_nl ';' bv_decls opt_nl  */
-#line 4231 "mrbgems/mruby-compiler/core/parse.y"
+#line 4213 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = 0;
                     }
-#line 10404 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10386 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 395: /* bvar: "local variable or method"  */
-#line 4241 "mrbgems/mruby-compiler/core/parse.y"
+#line 4223 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_f(p, (yyvsp[0].id));
                       new_bv(p, (yyvsp[0].id));
                     }
-#line 10413 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10395 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 397: /* f_larglist: '(' f_args opt_bv_decl ')'  */
-#line 4249 "mrbgems/mruby-compiler/core/parse.y"
+#line 4231 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-2].nd);
                     }
-#line 10421 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10403 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 398: /* f_larglist: f_args  */
-#line 4253 "mrbgems/mruby-compiler/core/parse.y"
+#line 4235 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 10429 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10411 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 399: /* lambda_body: tLAMBEG compstmt '}'  */
-#line 4259 "mrbgems/mruby-compiler/core/parse.y"
+#line 4241 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 10437 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10419 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 400: /* lambda_body: "'do' for lambda" bodystmt "'end'"  */
-#line 4263 "mrbgems/mruby-compiler/core/parse.y"
+#line 4245 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 10445 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10427 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 401: /* @26: %empty  */
-#line 4269 "mrbgems/mruby-compiler/core/parse.y"
+#line 4251 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_nest(p);
                       nvars_nest(p);
                       (yyval.num) = p->lineno;
                     }
-#line 10455 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10437 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 402: /* do_block: "'do' for block" @26 opt_block_param bodystmt "'end'"  */
-#line 4277 "mrbgems/mruby-compiler/core/parse.y"
+#line 4259 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_block(p,(yyvsp[-2].nd),(yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-3].num));
                       local_unnest(p);
                       nvars_unnest(p);
                     }
-#line 10466 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10448 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 403: /* block_call: command do_block  */
-#line 4286 "mrbgems/mruby-compiler/core/parse.y"
+#line 4268 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if (node_to_type((yyvsp[-1].nd)->car) == NODE_YIELD) {
                         yyerror(&(yylsp[-1]), p, "block given to yield");
@@ -10476,159 +10458,159 @@ yyreduce:
                       }
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 10480 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10462 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 404: /* block_call: block_call call_op2 operation2 opt_paren_args  */
-#line 4296 "mrbgems/mruby-compiler/core/parse.y"
+#line 4278 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-3].nd), (yyvsp[-1].id), (yyvsp[0].nd), (yyvsp[-2].num));
                     }
+#line 10470 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 405: /* block_call: block_call call_op2 operation2 opt_paren_args brace_block  */
+#line 4282 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.nd) = new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), (yyvsp[-1].nd), (yyvsp[-3].num));
+                      call_with_block(p, (yyval.nd), (yyvsp[0].nd));
+                    }
+#line 10479 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 406: /* block_call: block_call call_op2 operation2 command_args do_block  */
+#line 4287 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.nd) = new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), (yyvsp[-1].nd), (yyvsp[-3].num));
+                      call_with_block(p, (yyval.nd), (yyvsp[0].nd));
+                    }
 #line 10488 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 405: /* block_call: block_call call_op2 operation2 opt_paren_args brace_block  */
-#line 4300 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.nd) = new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), (yyvsp[-1].nd), (yyvsp[-3].num));
-                      call_with_block(p, (yyval.nd), (yyvsp[0].nd));
-                    }
-#line 10497 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 406: /* block_call: block_call call_op2 operation2 command_args do_block  */
-#line 4305 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.nd) = new_call(p, (yyvsp[-4].nd), (yyvsp[-2].id), (yyvsp[-1].nd), (yyvsp[-3].num));
-                      call_with_block(p, (yyval.nd), (yyvsp[0].nd));
-                    }
-#line 10506 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 407: /* method_call: operation paren_args  */
-#line 4312 "mrbgems/mruby-compiler/core/parse.y"
+#line 4294 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_fcall(p, (yyvsp[-1].id), (yyvsp[0].nd));
                     }
-#line 10514 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10496 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 408: /* method_call: primary_value call_op operation2 opt_paren_args  */
-#line 4316 "mrbgems/mruby-compiler/core/parse.y"
+#line 4298 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-3].nd), (yyvsp[-1].id), (yyvsp[0].nd), (yyvsp[-2].num));
                     }
-#line 10522 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10504 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 409: /* method_call: primary_value "::" operation2 paren_args  */
-#line 4320 "mrbgems/mruby-compiler/core/parse.y"
+#line 4302 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-3].nd), (yyvsp[-1].id), (yyvsp[0].nd), tCOLON2);
                     }
-#line 10530 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10512 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 410: /* method_call: primary_value "::" operation3  */
-#line 4324 "mrbgems/mruby-compiler/core/parse.y"
+#line 4306 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-2].nd), (yyvsp[0].id), 0, tCOLON2);
                     }
-#line 10538 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10520 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 411: /* method_call: primary_value call_op paren_args  */
-#line 4328 "mrbgems/mruby-compiler/core/parse.y"
+#line 4310 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-2].nd), MRB_SYM_2(p->mrb, call), (yyvsp[0].nd), (yyvsp[-1].num));
                     }
-#line 10546 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10528 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 412: /* method_call: primary_value "::" paren_args  */
-#line 4332 "mrbgems/mruby-compiler/core/parse.y"
+#line 4314 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_call(p, (yyvsp[-2].nd), MRB_SYM_2(p->mrb, call), (yyvsp[0].nd), tCOLON2);
                     }
-#line 10554 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10536 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 413: /* method_call: "'super'" paren_args  */
-#line 4336 "mrbgems/mruby-compiler/core/parse.y"
+#line 4318 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_super(p, (yyvsp[0].nd));
                     }
-#line 10562 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10544 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 414: /* method_call: "'super'"  */
-#line 4340 "mrbgems/mruby-compiler/core/parse.y"
+#line 4322 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_zsuper(p);
                     }
+#line 10552 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 415: /* method_call: primary_value '[' opt_call_args ']'  */
+#line 4326 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.nd) = new_call(p, (yyvsp[-3].nd), intern_op(aref), (yyvsp[-1].nd), '.');
+                    }
+#line 10560 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 416: /* @27: %empty  */
+#line 4332 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      local_nest(p);
+                      nvars_nest(p);
+                      (yyval.num) = p->lineno;
+                    }
 #line 10570 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 415: /* method_call: primary_value '[' opt_call_args ']'  */
-#line 4344 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.nd) = new_call(p, (yyvsp[-3].nd), intern_op(aref), (yyvsp[-1].nd), '.');
-                    }
-#line 10578 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 416: /* @27: %empty  */
-#line 4350 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      local_nest(p);
-                      nvars_nest(p);
-                      (yyval.num) = p->lineno;
-                    }
-#line 10588 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 417: /* brace_block: '{' @27 opt_block_param compstmt '}'  */
-#line 4357 "mrbgems/mruby-compiler/core/parse.y"
+#line 4339 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_block(p,(yyvsp[-2].nd),(yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-3].num));
                       local_unnest(p);
                       nvars_unnest(p);
                     }
-#line 10599 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10581 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 418: /* @28: %empty  */
-#line 4364 "mrbgems/mruby-compiler/core/parse.y"
+#line 4346 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_nest(p);
                       nvars_nest(p);
                       (yyval.num) = p->lineno;
                     }
-#line 10609 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10591 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 419: /* brace_block: "'do'" @28 opt_block_param bodystmt "'end'"  */
-#line 4371 "mrbgems/mruby-compiler/core/parse.y"
+#line 4353 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_block(p,(yyvsp[-2].nd),(yyvsp[-1].nd));
                       SET_LINENO((yyval.nd), (yyvsp[-3].num));
                       local_unnest(p);
                       nvars_unnest(p);
                     }
-#line 10620 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10602 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 420: /* case_body: "'when'" args then compstmt cases  */
-#line 4382 "mrbgems/mruby-compiler/core/parse.y"
+#line 4364 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = cons(cons((yyvsp[-3].nd), (yyvsp[-1].nd)), (yyvsp[0].nd));
                     }
-#line 10628 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10610 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 421: /* cases: opt_else  */
-#line 4388 "mrbgems/mruby-compiler/core/parse.y"
+#line 4370 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       if ((yyvsp[0].nd)) {
                         (yyval.nd) = cons(cons(0, (yyvsp[0].nd)), 0);
@@ -10637,155 +10619,155 @@ yyreduce:
                         (yyval.nd) = 0;
                       }
                     }
-#line 10641 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10623 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 423: /* opt_rescue: "'rescue'" exc_list exc_var then compstmt opt_rescue  */
-#line 4402 "mrbgems/mruby-compiler/core/parse.y"
+#line 4384 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1(list3((yyvsp[-4].nd), (yyvsp[-3].nd), (yyvsp[-1].nd)));
                       if ((yyvsp[0].nd)) (yyval.nd) = append((yyval.nd), (yyvsp[0].nd));
                     }
-#line 10650 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10632 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 425: /* exc_list: arg  */
-#line 4410 "mrbgems/mruby-compiler/core/parse.y"
+#line 4392 "mrbgems/mruby-compiler/core/parse.y"
                     {
                         (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 10658 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10640 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 428: /* exc_var: "=>" lhs  */
-#line 4418 "mrbgems/mruby-compiler/core/parse.y"
+#line 4400 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 10666 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10648 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 430: /* opt_ensure: "'ensure'" compstmt  */
-#line 4425 "mrbgems/mruby-compiler/core/parse.y"
+#line 4407 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 10674 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10656 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 437: /* string: string string_fragment  */
-#line 4439 "mrbgems/mruby-compiler/core/parse.y"
+#line 4421 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = append((yyvsp[-1].nd), (yyvsp[0].nd));
                     }
+#line 10664 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 438: /* string_fragment: "character literal"  */
+#line 4427 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      /* tCHAR is (len . str), wrap as cons list */
+                      (yyval.nd) = list1((yyvsp[0].nd));
+                    }
+#line 10673 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 439: /* string_fragment: tSTRING  */
+#line 4432 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      /* tSTRING is (len . str), wrap as cons list */
+                      (yyval.nd) = list1((yyvsp[0].nd));
+                    }
 #line 10682 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 438: /* string_fragment: "character literal"  */
-#line 4445 "mrbgems/mruby-compiler/core/parse.y"
+  case 440: /* string_fragment: "string literal" tSTRING  */
+#line 4437 "mrbgems/mruby-compiler/core/parse.y"
                     {
-                      /* tCHAR is (len . str), wrap as cons list */
+                      /* $2 is (len . str), wrap as cons list */
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
 #line 10691 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 439: /* string_fragment: tSTRING  */
-#line 4450 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      /* tSTRING is (len . str), wrap as cons list */
-                      (yyval.nd) = list1((yyvsp[0].nd));
-                    }
-#line 10700 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 440: /* string_fragment: "string literal" tSTRING  */
-#line 4455 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      /* $2 is (len . str), wrap as cons list */
-                      (yyval.nd) = list1((yyvsp[0].nd));
-                    }
-#line 10709 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 441: /* string_fragment: "string literal" string_rep tSTRING  */
-#line 4460 "mrbgems/mruby-compiler/core/parse.y"
+#line 4442 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10717 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10699 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 443: /* string_rep: string_rep string_interp  */
-#line 4467 "mrbgems/mruby-compiler/core/parse.y"
+#line 4449 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = append((yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10725 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10707 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 444: /* string_interp: tSTRING_MID  */
-#line 4473 "mrbgems/mruby-compiler/core/parse.y"
+#line 4455 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       /* $1 is already in (len . str) format */
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 10734 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10716 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 445: /* @29: %empty  */
-#line 4478 "mrbgems/mruby-compiler/core/parse.y"
+#line 4460 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push_strterm(p);
                     }
-#line 10742 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10724 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 446: /* string_interp: tSTRING_PART @29 compstmt '}'  */
-#line 4483 "mrbgems/mruby-compiler/core/parse.y"
+#line 4465 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       pop_strterm(p,(yyvsp[-2].nd));
                       /* $1 is already in (len . str) format, create (-1 . node) for expression */
                       node *expr_elem = cons(int_to_node(-1), (yyvsp[-1].nd));
                       (yyval.nd) = list2((yyvsp[-3].nd), expr_elem);
                     }
-#line 10753 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10735 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 447: /* string_interp: tLITERAL_DELIM  */
-#line 4490 "mrbgems/mruby-compiler/core/parse.y"
+#line 4472 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1(new_literal_delim(p));
                     }
-#line 10761 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10743 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 448: /* string_interp: tHD_LITERAL_DELIM heredoc_bodies  */
-#line 4494 "mrbgems/mruby-compiler/core/parse.y"
+#line 4476 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1(new_literal_delim(p));
                     }
-#line 10769 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10751 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 449: /* xstring: tXSTRING_BEG tXSTRING  */
-#line 4500 "mrbgems/mruby-compiler/core/parse.y"
+#line 4482 "mrbgems/mruby-compiler/core/parse.y"
                     {
                         (yyval.nd) = cons((yyvsp[0].nd), (node*)NULL);
                     }
-#line 10777 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10759 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 450: /* xstring: tXSTRING_BEG string_rep tXSTRING  */
-#line 4504 "mrbgems/mruby-compiler/core/parse.y"
+#line 4486 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 10785 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10767 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 451: /* regexp: tREGEXP_BEG tREGEXP  */
-#line 4510 "mrbgems/mruby-compiler/core/parse.y"
+#line 4492 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       node *data = (yyvsp[0].nd);  /* ((len . pattern) . (flags . encoding)) */
                       const char *flags = (const char*)data->cdr->car;
@@ -10794,11 +10776,11 @@ yyreduce:
                       node *pattern_list = cons(data->car, (node*)NULL);
                       (yyval.nd) = new_dregx(p, pattern_list, flags, encoding);
                     }
-#line 10798 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10780 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 452: /* regexp: tREGEXP_BEG string_rep tREGEXP  */
-#line 4519 "mrbgems/mruby-compiler/core/parse.y"
+#line 4501 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       node *data = (yyvsp[0].nd);  /* ((len . pattern) . (flags . encoding)) */
                       const char *flags = (const char*)data->cdr->car;
@@ -10807,47 +10789,47 @@ yyreduce:
                       node *complete_list = push((yyvsp[-1].nd), data->car);
                       (yyval.nd) = new_dregx(p, complete_list, flags, encoding);
                     }
-#line 10811 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10793 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 456: /* heredoc_body: tHEREDOC_END  */
-#line 4537 "mrbgems/mruby-compiler/core/parse.y"
+#line 4519 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       parser_heredoc_info *info = parsing_heredoc_info(p);
                       info->doc = push(info->doc, new_str_empty(p));
                       heredoc_end(p);
                     }
-#line 10821 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10803 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 457: /* heredoc_body: heredoc_string_rep tHEREDOC_END  */
-#line 4543 "mrbgems/mruby-compiler/core/parse.y"
+#line 4525 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       heredoc_end(p);
                     }
-#line 10829 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10811 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 460: /* heredoc_string_interp: tHD_STRING_MID  */
-#line 4553 "mrbgems/mruby-compiler/core/parse.y"
+#line 4535 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       parser_heredoc_info *info = parsing_heredoc_info(p);
                       info->doc = push(info->doc, (yyvsp[0].nd));
                       heredoc_treat_nextline(p);
                     }
-#line 10839 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10821 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 461: /* @30: %empty  */
-#line 4559 "mrbgems/mruby-compiler/core/parse.y"
+#line 4541 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push_strterm(p);
                     }
-#line 10847 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10829 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 462: /* heredoc_string_interp: tHD_STRING_PART @30 compstmt '}'  */
-#line 4564 "mrbgems/mruby-compiler/core/parse.y"
+#line 4546 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       pop_strterm(p, (yyvsp[-2].nd));
                       parser_heredoc_info *info = parsing_heredoc_info(p);
@@ -10855,37 +10837,37 @@ yyreduce:
                       node *expr_elem = cons(int_to_node(-1), (yyvsp[-1].nd));
                       info->doc = push(push(info->doc, (yyvsp[-3].nd)), expr_elem);
                     }
-#line 10859 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10841 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 463: /* words: tWORDS_BEG tSTRING  */
-#line 4574 "mrbgems/mruby-compiler/core/parse.y"
+#line 4556 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_words(p, list1((yyvsp[0].nd)));
                     }
-#line 10867 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10849 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 464: /* words: tWORDS_BEG string_rep tSTRING  */
-#line 4578 "mrbgems/mruby-compiler/core/parse.y"
+#line 4560 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       node *n = (yyvsp[-1].nd);
                       n = push(n, (yyvsp[0].nd));
                       (yyval.nd) = new_words(p, n);
                     }
-#line 10877 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10859 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 465: /* symbol: basic_symbol  */
-#line 4587 "mrbgems/mruby-compiler/core/parse.y"
+#line 4569 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_sym(p, (yyvsp[0].id));
                     }
-#line 10885 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10867 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 466: /* symbol: "symbol" "string literal" string_rep tSTRING  */
-#line 4591 "mrbgems/mruby-compiler/core/parse.y"
+#line 4573 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       node *n = (yyvsp[-1].nd);
                       p->lstate = EXPR_ENDARG;
@@ -10897,183 +10879,183 @@ yyreduce:
                       }
                       (yyval.nd) = new_dsym(p, new_str(p, n));
                     }
-#line 10901 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10883 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 467: /* symbol: "symbol" "numbered parameter"  */
-#line 4603 "mrbgems/mruby-compiler/core/parse.y"
+#line 4585 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       mrb_sym sym = intern_numparam((yyvsp[0].num));
                       (yyval.nd) = new_sym(p, sym);
                     }
-#line 10910 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10892 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 468: /* basic_symbol: "symbol" sym  */
-#line 4610 "mrbgems/mruby-compiler/core/parse.y"
+#line 4592 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->lstate = EXPR_END;
                       (yyval.id) = (yyvsp[0].id);
                     }
-#line 10919 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10901 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 473: /* sym: tSTRING  */
-#line 4621 "mrbgems/mruby-compiler/core/parse.y"
+#line 4603 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.id) = new_strsym(p, (yyvsp[0].nd));
                     }
-#line 10927 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10909 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 474: /* sym: "string literal" tSTRING  */
-#line 4625 "mrbgems/mruby-compiler/core/parse.y"
+#line 4607 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.id) = new_strsym(p, (yyvsp[0].nd));
                     }
-#line 10935 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10917 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 475: /* symbols: tSYMBOLS_BEG tSTRING  */
-#line 4631 "mrbgems/mruby-compiler/core/parse.y"
+#line 4613 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_symbols(p, list1((yyvsp[0].nd)));
                     }
-#line 10943 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10925 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 476: /* symbols: tSYMBOLS_BEG string_rep tSTRING  */
-#line 4635 "mrbgems/mruby-compiler/core/parse.y"
+#line 4617 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       node *n = (yyvsp[-1].nd);
                       n = push(n, (yyvsp[0].nd));
                       (yyval.nd) = new_symbols(p, n);
                     }
-#line 10953 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10935 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 479: /* numeric: tUMINUS_NUM "integer literal"  */
-#line 4645 "mrbgems/mruby-compiler/core/parse.y"
+#line 4627 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_negate(p, (yyvsp[0].nd));
                     }
-#line 10961 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10943 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 480: /* numeric: tUMINUS_NUM "float literal"  */
-#line 4649 "mrbgems/mruby-compiler/core/parse.y"
+#line 4631 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_negate(p, (yyvsp[0].nd));
                     }
-#line 10969 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10951 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 481: /* variable: "local variable or method"  */
-#line 4655 "mrbgems/mruby-compiler/core/parse.y"
+#line 4637 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_lvar(p, (yyvsp[0].id));
                     }
-#line 10977 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10959 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 482: /* variable: "instance variable"  */
-#line 4659 "mrbgems/mruby-compiler/core/parse.y"
+#line 4641 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_ivar(p, (yyvsp[0].id));
                     }
-#line 10985 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10967 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 483: /* variable: "global variable"  */
-#line 4663 "mrbgems/mruby-compiler/core/parse.y"
+#line 4645 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_gvar(p, (yyvsp[0].id));
                     }
-#line 10993 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10975 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 484: /* variable: "class variable"  */
-#line 4667 "mrbgems/mruby-compiler/core/parse.y"
+#line 4649 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_cvar(p, (yyvsp[0].id));
                     }
-#line 11001 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10983 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 485: /* variable: "constant"  */
-#line 4671 "mrbgems/mruby-compiler/core/parse.y"
+#line 4653 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_const(p, (yyvsp[0].id));
                     }
-#line 11009 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10991 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 486: /* var_lhs: variable  */
-#line 4677 "mrbgems/mruby-compiler/core/parse.y"
+#line 4659 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       assignable(p, (yyvsp[0].nd));
                     }
-#line 11017 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 10999 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 487: /* var_lhs: "numbered parameter"  */
-#line 4681 "mrbgems/mruby-compiler/core/parse.y"
+#line 4663 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       yyerror(&(yylsp[0]), p, "can't assign to numbered parameter");
                     }
-#line 11025 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11007 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 488: /* var_ref: variable  */
-#line 4687 "mrbgems/mruby-compiler/core/parse.y"
+#line 4669 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = var_reference(p, (yyvsp[0].nd));
                     }
-#line 11033 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11015 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 489: /* var_ref: "numbered parameter"  */
-#line 4691 "mrbgems/mruby-compiler/core/parse.y"
+#line 4673 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_nvar(p, (yyvsp[0].num));
                     }
-#line 11041 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11023 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 490: /* var_ref: "'nil'"  */
-#line 4695 "mrbgems/mruby-compiler/core/parse.y"
+#line 4677 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_nil(p);
                     }
-#line 11049 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11031 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 491: /* var_ref: "'self'"  */
-#line 4699 "mrbgems/mruby-compiler/core/parse.y"
+#line 4681 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_self(p);
                     }
-#line 11057 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11039 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 492: /* var_ref: "'true'"  */
-#line 4703 "mrbgems/mruby-compiler/core/parse.y"
+#line 4685 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_true(p);
                     }
-#line 11065 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11047 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 493: /* var_ref: "'false'"  */
-#line 4707 "mrbgems/mruby-compiler/core/parse.y"
+#line 4689 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_false(p);
                     }
-#line 11073 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11055 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 494: /* var_ref: "'__FILE__'"  */
-#line 4711 "mrbgems/mruby-compiler/core/parse.y"
+#line 4693 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       const char *fn = mrb_sym_name_len(p->mrb, p->filename_sym, NULL);
                       if (!fn) {
@@ -11081,686 +11063,686 @@ yyreduce:
                       }
                       (yyval.nd) = new_str(p, cons(cons(int_to_node(strlen(fn)), (node*)fn), (node*)NULL));
                     }
-#line 11085 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11067 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 495: /* var_ref: "'__LINE__'"  */
-#line 4719 "mrbgems/mruby-compiler/core/parse.y"
+#line 4701 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       char buf[16];
 
                       dump_int(p->lineno, buf);
                       (yyval.nd) = new_int(p, buf, 10, 0);
                     }
-#line 11096 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11078 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 496: /* var_ref: "'__ENCODING__'"  */
-#line 4726 "mrbgems/mruby-compiler/core/parse.y"
+#line 4708 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_fcall(p, MRB_SYM_2(p->mrb, __ENCODING__), 0);
                     }
-#line 11104 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11086 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 499: /* superclass: %empty  */
-#line 4736 "mrbgems/mruby-compiler/core/parse.y"
+#line 4718 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = 0;
                     }
-#line 11112 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11094 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 500: /* $@31: %empty  */
-#line 4740 "mrbgems/mruby-compiler/core/parse.y"
+#line 4722 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->lstate = EXPR_BEG;
                       p->cmd_start = TRUE;
                     }
+#line 11103 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 501: /* superclass: '<' $@31 expr_value term  */
+#line 4727 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.nd) = (yyvsp[-1].nd);
+                    }
+#line 11111 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 504: /* f_arglist_paren: '(' f_args rparen  */
+#line 4743 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.nd) = (yyvsp[-1].nd);
+                      p->lstate = EXPR_BEG;
+                      p->cmd_start = TRUE;
+                    }
 #line 11121 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 501: /* superclass: '<' $@31 expr_value term  */
-#line 4745 "mrbgems/mruby-compiler/core/parse.y"
+  case 505: /* f_arglist_paren: '(' f_arg ',' tBDOT3 rparen  */
+#line 4749 "mrbgems/mruby-compiler/core/parse.y"
                     {
-                      (yyval.nd) = (yyvsp[-1].nd);
+                      (yyval.nd) = new_args_dots(p, (yyvsp[-3].nd));
                     }
 #line 11129 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 504: /* f_arglist_paren: '(' f_args rparen  */
-#line 4761 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.nd) = (yyvsp[-1].nd);
-                      p->lstate = EXPR_BEG;
-                      p->cmd_start = TRUE;
-                    }
-#line 11139 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 505: /* f_arglist_paren: '(' f_arg ',' tBDOT3 rparen  */
-#line 4767 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.nd) = new_args_dots(p, (yyvsp[-3].nd));
-                    }
-#line 11147 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 506: /* f_arglist_paren: '(' tBDOT3 rparen  */
-#line 4771 "mrbgems/mruby-compiler/core/parse.y"
+#line 4753 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_dots(p, 0);
                     }
-#line 11155 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11137 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 508: /* f_arglist: f_args term  */
-#line 4778 "mrbgems/mruby-compiler/core/parse.y"
+#line 4760 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 11163 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11145 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 509: /* f_arglist: f_arg ',' tBDOT3 term  */
-#line 4782 "mrbgems/mruby-compiler/core/parse.y"
+#line 4764 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_dots(p, (yyvsp[-3].nd));
                     }
-#line 11171 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11153 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 510: /* f_arglist: "..." term  */
-#line 4786 "mrbgems/mruby-compiler/core/parse.y"
+#line 4768 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_dots(p, 0);
                     }
-#line 11179 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11161 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 511: /* f_label: "local variable or method" "label"  */
-#line 4792 "mrbgems/mruby-compiler/core/parse.y"
+#line 4774 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_nest(p);
                     }
+#line 11169 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 512: /* f_label: "numbered parameter" "label"  */
+#line 4778 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      local_nest(p);
+                    }
+#line 11177 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 513: /* f_kw: f_label arg  */
+#line 4784 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      void_expr_error(p, (yyvsp[0].nd));
+                      (yyval.nd) = new_kw_arg(p, (yyvsp[-1].id), cons((yyvsp[0].nd), locals_node(p)));
+                      local_unnest(p);
+                    }
 #line 11187 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 512: /* f_label: "numbered parameter" "label"  */
-#line 4796 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      local_nest(p);
-                    }
-#line 11195 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 513: /* f_kw: f_label arg  */
-#line 4802 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      void_expr_error(p, (yyvsp[0].nd));
-                      (yyval.nd) = new_kw_arg(p, (yyvsp[-1].id), cons((yyvsp[0].nd), locals_node(p)));
-                      local_unnest(p);
-                    }
-#line 11205 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 514: /* f_kw: f_label  */
-#line 4808 "mrbgems/mruby-compiler/core/parse.y"
+#line 4790 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_kw_arg(p, (yyvsp[0].id), 0);
                       local_unnest(p);
                     }
-#line 11214 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11196 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 515: /* f_block_kw: f_label primary_value  */
-#line 4815 "mrbgems/mruby-compiler/core/parse.y"
+#line 4797 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = new_kw_arg(p, (yyvsp[-1].id), cons((yyvsp[0].nd), locals_node(p)));
                       local_unnest(p);
                     }
-#line 11224 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11206 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 516: /* f_block_kw: f_label  */
-#line 4821 "mrbgems/mruby-compiler/core/parse.y"
+#line 4803 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_kw_arg(p, (yyvsp[0].id), 0);
                       local_unnest(p);
                     }
-#line 11233 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11215 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 517: /* f_block_kwarg: f_block_kw  */
-#line 4828 "mrbgems/mruby-compiler/core/parse.y"
+#line 4810 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 11241 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11223 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 518: /* f_block_kwarg: f_block_kwarg ',' f_block_kw  */
-#line 4832 "mrbgems/mruby-compiler/core/parse.y"
+#line 4814 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 11249 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11231 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 519: /* f_kwarg: f_kw  */
-#line 4838 "mrbgems/mruby-compiler/core/parse.y"
+#line 4820 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 11257 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11239 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 520: /* f_kwarg: f_kwarg ',' f_kw  */
-#line 4842 "mrbgems/mruby-compiler/core/parse.y"
+#line 4824 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 11265 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11247 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 523: /* f_kwrest: kwrest_mark "local variable or method"  */
-#line 4852 "mrbgems/mruby-compiler/core/parse.y"
+#line 4834 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_kw_rest_args(p, (yyvsp[0].id));
                     }
-#line 11273 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11255 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 524: /* f_kwrest: kwrest_mark  */
-#line 4856 "mrbgems/mruby-compiler/core/parse.y"
+#line 4838 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_kw_rest_args(p, 0);
                     }
-#line 11281 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11263 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 525: /* args_tail: f_kwarg ',' f_kwrest opt_f_block_arg  */
-#line 4862 "mrbgems/mruby-compiler/core/parse.y"
+#line 4844 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, (yyvsp[-3].nd), (yyvsp[-1].nd), (yyvsp[0].id));
                     }
-#line 11289 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11271 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 526: /* args_tail: f_kwarg opt_f_block_arg  */
-#line 4866 "mrbgems/mruby-compiler/core/parse.y"
+#line 4848 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, (yyvsp[-1].nd), 0, (yyvsp[0].id));
                     }
-#line 11297 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11279 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 527: /* args_tail: f_kwrest opt_f_block_arg  */
-#line 4870 "mrbgems/mruby-compiler/core/parse.y"
+#line 4852 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, 0, (yyvsp[-1].nd), (yyvsp[0].id));
                     }
-#line 11305 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11287 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 528: /* args_tail: f_block_arg  */
-#line 4874 "mrbgems/mruby-compiler/core/parse.y"
+#line 4856 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, 0, 0, (yyvsp[0].id));
                     }
-#line 11313 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11295 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 529: /* opt_args_tail: ',' args_tail  */
-#line 4880 "mrbgems/mruby-compiler/core/parse.y"
+#line 4862 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[0].nd);
                     }
-#line 11321 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11303 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 530: /* opt_args_tail: %empty  */
-#line 4884 "mrbgems/mruby-compiler/core/parse.y"
+#line 4866 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args_tail(p, 0, 0, 0);
                     }
-#line 11329 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11311 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 531: /* f_args: f_arg ',' f_optarg ',' f_rest_arg opt_args_tail  */
-#line 4890 "mrbgems/mruby-compiler/core/parse.y"
+#line 4872 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-5].nd), (yyvsp[-3].nd), (yyvsp[-1].id), 0, (yyvsp[0].nd));
                     }
-#line 11337 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11319 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 532: /* f_args: f_arg ',' f_optarg ',' f_rest_arg ',' f_arg opt_args_tail  */
-#line 4894 "mrbgems/mruby-compiler/core/parse.y"
+#line 4876 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-7].nd), (yyvsp[-5].nd), (yyvsp[-3].id), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 11345 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11327 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 533: /* f_args: f_arg ',' f_optarg opt_args_tail  */
-#line 4898 "mrbgems/mruby-compiler/core/parse.y"
+#line 4880 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-3].nd), (yyvsp[-1].nd), 0, 0, (yyvsp[0].nd));
                     }
-#line 11353 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11335 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 534: /* f_args: f_arg ',' f_optarg ',' f_arg opt_args_tail  */
-#line 4902 "mrbgems/mruby-compiler/core/parse.y"
+#line 4884 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-5].nd), (yyvsp[-3].nd), 0, (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 11361 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11343 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 535: /* f_args: f_arg ',' f_rest_arg opt_args_tail  */
-#line 4906 "mrbgems/mruby-compiler/core/parse.y"
+#line 4888 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-3].nd), 0, (yyvsp[-1].id), 0, (yyvsp[0].nd));
                     }
-#line 11369 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11351 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 536: /* f_args: f_arg ',' f_rest_arg ',' f_arg opt_args_tail  */
-#line 4910 "mrbgems/mruby-compiler/core/parse.y"
+#line 4892 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-5].nd), 0, (yyvsp[-3].id), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 11377 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11359 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 537: /* f_args: f_arg opt_args_tail  */
-#line 4914 "mrbgems/mruby-compiler/core/parse.y"
+#line 4896 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, (yyvsp[-1].nd), 0, 0, 0, (yyvsp[0].nd));
                     }
-#line 11385 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11367 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 538: /* f_args: f_optarg ',' f_rest_arg opt_args_tail  */
-#line 4918 "mrbgems/mruby-compiler/core/parse.y"
+#line 4900 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, (yyvsp[-3].nd), (yyvsp[-1].id), 0, (yyvsp[0].nd));
                     }
-#line 11393 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11375 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 539: /* f_args: f_optarg ',' f_rest_arg ',' f_arg opt_args_tail  */
-#line 4922 "mrbgems/mruby-compiler/core/parse.y"
+#line 4904 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, (yyvsp[-5].nd), (yyvsp[-3].id), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 11401 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11383 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 540: /* f_args: f_optarg opt_args_tail  */
-#line 4926 "mrbgems/mruby-compiler/core/parse.y"
+#line 4908 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, (yyvsp[-1].nd), 0, 0, (yyvsp[0].nd));
                     }
-#line 11409 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11391 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 541: /* f_args: f_optarg ',' f_arg opt_args_tail  */
-#line 4930 "mrbgems/mruby-compiler/core/parse.y"
+#line 4912 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, (yyvsp[-3].nd), 0, (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 11417 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11399 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 542: /* f_args: f_rest_arg opt_args_tail  */
-#line 4934 "mrbgems/mruby-compiler/core/parse.y"
+#line 4916 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, 0, (yyvsp[-1].id), 0, (yyvsp[0].nd));
                     }
-#line 11425 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11407 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 543: /* f_args: f_rest_arg ',' f_arg opt_args_tail  */
-#line 4938 "mrbgems/mruby-compiler/core/parse.y"
+#line 4920 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, 0, (yyvsp[-3].id), (yyvsp[-1].nd), (yyvsp[0].nd));
                     }
-#line 11433 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11415 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 544: /* f_args: args_tail  */
-#line 4942 "mrbgems/mruby-compiler/core/parse.y"
+#line 4924 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_args(p, 0, 0, 0, 0, (yyvsp[0].nd));
                     }
-#line 11441 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11423 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 545: /* f_args: %empty  */
-#line 4946 "mrbgems/mruby-compiler/core/parse.y"
+#line 4928 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_f(p, 0);
                       (yyval.nd) = new_args(p, 0, 0, 0, 0, 0);
                     }
-#line 11450 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11432 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 546: /* f_bad_arg: "constant"  */
-#line 4953 "mrbgems/mruby-compiler/core/parse.y"
+#line 4935 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       yyerror(&(yylsp[0]), p, "formal argument cannot be a constant");
                       (yyval.nd) = 0;
                     }
+#line 11441 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 547: /* f_bad_arg: "instance variable"  */
+#line 4940 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      yyerror(&(yylsp[0]), p, "formal argument cannot be an instance variable");
+                      (yyval.nd) = 0;
+                    }
+#line 11450 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 548: /* f_bad_arg: "global variable"  */
+#line 4945 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      yyerror(&(yylsp[0]), p, "formal argument cannot be a global variable");
+                      (yyval.nd) = 0;
+                    }
 #line 11459 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 547: /* f_bad_arg: "instance variable"  */
-#line 4958 "mrbgems/mruby-compiler/core/parse.y"
+  case 549: /* f_bad_arg: "class variable"  */
+#line 4950 "mrbgems/mruby-compiler/core/parse.y"
                     {
-                      yyerror(&(yylsp[0]), p, "formal argument cannot be an instance variable");
+                      yyerror(&(yylsp[0]), p, "formal argument cannot be a class variable");
                       (yyval.nd) = 0;
                     }
 #line 11468 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 548: /* f_bad_arg: "global variable"  */
-#line 4963 "mrbgems/mruby-compiler/core/parse.y"
+  case 550: /* f_bad_arg: "numbered parameter"  */
+#line 4955 "mrbgems/mruby-compiler/core/parse.y"
                     {
-                      yyerror(&(yylsp[0]), p, "formal argument cannot be a global variable");
+                      yyerror(&(yylsp[0]), p, "formal argument cannot be a numbered parameter");
                       (yyval.nd) = 0;
                     }
 #line 11477 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 549: /* f_bad_arg: "class variable"  */
-#line 4968 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      yyerror(&(yylsp[0]), p, "formal argument cannot be a class variable");
-                      (yyval.nd) = 0;
-                    }
-#line 11486 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 550: /* f_bad_arg: "numbered parameter"  */
-#line 4973 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      yyerror(&(yylsp[0]), p, "formal argument cannot be a numbered parameter");
-                      (yyval.nd) = 0;
-                    }
-#line 11495 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 551: /* f_norm_arg: f_bad_arg  */
-#line 4980 "mrbgems/mruby-compiler/core/parse.y"
+#line 4962 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.id) = 0;
                     }
-#line 11503 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11485 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 552: /* f_norm_arg: "local variable or method"  */
-#line 4984 "mrbgems/mruby-compiler/core/parse.y"
+#line 4966 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_f(p, (yyvsp[0].id));
                       (yyval.id) = (yyvsp[0].id);
                     }
-#line 11512 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11494 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 553: /* f_arg_item: f_norm_arg  */
-#line 4991 "mrbgems/mruby-compiler/core/parse.y"
+#line 4973 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_arg(p, (yyvsp[0].id));
                     }
-#line 11520 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11502 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 554: /* @32: %empty  */
-#line 4995 "mrbgems/mruby-compiler/core/parse.y"
+#line 4977 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = local_switch(p);
                     }
-#line 11528 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11510 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 555: /* f_arg_item: tLPAREN @32 f_margs rparen  */
-#line 4999 "mrbgems/mruby-compiler/core/parse.y"
+#line 4981 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = new_masgn_param(p, (yyvsp[-1].nd), p->locals->car);
                       local_resume(p, (yyvsp[-2].nd));
                       local_add_f(p, 0);
                     }
-#line 11538 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11520 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 556: /* f_arg: f_arg_item  */
-#line 5007 "mrbgems/mruby-compiler/core/parse.y"
+#line 4989 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 11546 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11528 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 557: /* f_arg: f_arg ',' f_arg_item  */
-#line 5011 "mrbgems/mruby-compiler/core/parse.y"
+#line 4993 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 11554 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11536 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 558: /* f_opt_asgn: "local variable or method" '='  */
-#line 5017 "mrbgems/mruby-compiler/core/parse.y"
+#line 4999 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_f(p, (yyvsp[-1].id));
                       local_nest(p);
                       (yyval.id) = (yyvsp[-1].id);
                     }
-#line 11564 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11546 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 559: /* f_opt: f_opt_asgn arg  */
-#line 5025 "mrbgems/mruby-compiler/core/parse.y"
+#line 5007 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = cons(sym_to_node((yyvsp[-1].id)), cons((yyvsp[0].nd), locals_node(p)));
                       local_unnest(p);
                     }
+#line 11556 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 560: /* f_block_opt: f_opt_asgn primary_value  */
+#line 5015 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      void_expr_error(p, (yyvsp[0].nd));
+                      (yyval.nd) = cons(sym_to_node((yyvsp[-1].id)), cons((yyvsp[0].nd), locals_node(p)));
+                      local_unnest(p);
+                    }
+#line 11566 "mrbgems/mruby-compiler/core/y.tab.c"
+    break;
+
+  case 561: /* f_block_optarg: f_block_opt  */
+#line 5023 "mrbgems/mruby-compiler/core/parse.y"
+                    {
+                      (yyval.nd) = list1((yyvsp[0].nd));
+                    }
 #line 11574 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
-  case 560: /* f_block_opt: f_opt_asgn primary_value  */
-#line 5033 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      void_expr_error(p, (yyvsp[0].nd));
-                      (yyval.nd) = cons(sym_to_node((yyvsp[-1].id)), cons((yyvsp[0].nd), locals_node(p)));
-                      local_unnest(p);
-                    }
-#line 11584 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
-  case 561: /* f_block_optarg: f_block_opt  */
-#line 5041 "mrbgems/mruby-compiler/core/parse.y"
-                    {
-                      (yyval.nd) = list1((yyvsp[0].nd));
-                    }
-#line 11592 "mrbgems/mruby-compiler/core/y.tab.c"
-    break;
-
   case 562: /* f_block_optarg: f_block_optarg ',' f_block_opt  */
-#line 5045 "mrbgems/mruby-compiler/core/parse.y"
+#line 5027 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 11600 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11582 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 563: /* f_optarg: f_opt  */
-#line 5051 "mrbgems/mruby-compiler/core/parse.y"
+#line 5033 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 11608 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11590 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 564: /* f_optarg: f_optarg ',' f_opt  */
-#line 5055 "mrbgems/mruby-compiler/core/parse.y"
+#line 5037 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 11616 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11598 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 567: /* f_rest_arg: restarg_mark "local variable or method"  */
-#line 5065 "mrbgems/mruby-compiler/core/parse.y"
+#line 5047 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       local_add_f(p, (yyvsp[0].id));
                       (yyval.id) = (yyvsp[0].id);
                     }
-#line 11625 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11607 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 568: /* f_rest_arg: restarg_mark  */
-#line 5070 "mrbgems/mruby-compiler/core/parse.y"
+#line 5052 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.id) = intern_op(mul);
                       local_add_f(p, (yyval.id));
                     }
-#line 11634 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11616 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 571: /* f_block_arg: blkarg_mark "local variable or method"  */
-#line 5081 "mrbgems/mruby-compiler/core/parse.y"
+#line 5063 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.id) = (yyvsp[0].id);
                     }
-#line 11642 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11624 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 572: /* f_block_arg: blkarg_mark  */
-#line 5085 "mrbgems/mruby-compiler/core/parse.y"
+#line 5067 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.id) = intern_op(and);
                     }
-#line 11650 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11632 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 573: /* opt_f_block_arg: ',' f_block_arg  */
-#line 5091 "mrbgems/mruby-compiler/core/parse.y"
+#line 5073 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.id) = (yyvsp[0].id);
                     }
-#line 11658 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11640 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 574: /* opt_f_block_arg: none  */
-#line 5095 "mrbgems/mruby-compiler/core/parse.y"
+#line 5077 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.id) = 0;
                     }
-#line 11666 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11648 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 575: /* singleton: var_ref  */
-#line 5101 "mrbgems/mruby-compiler/core/parse.y"
+#line 5083 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       prohibit_literals(p, (yyvsp[0].nd));
                       (yyval.nd) = (yyvsp[0].nd);
                       if (!(yyval.nd)) (yyval.nd) = new_nil(p);
                     }
-#line 11676 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11658 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 576: /* $@33: %empty  */
-#line 5106 "mrbgems/mruby-compiler/core/parse.y"
+#line 5088 "mrbgems/mruby-compiler/core/parse.y"
                       {p->lstate = EXPR_BEG;}
-#line 11682 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11664 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 577: /* singleton: '(' $@33 expr rparen  */
-#line 5107 "mrbgems/mruby-compiler/core/parse.y"
+#line 5089 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       prohibit_literals(p, (yyvsp[-1].nd));
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 11691 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11673 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 579: /* assoc_list: assocs trailer  */
-#line 5115 "mrbgems/mruby-compiler/core/parse.y"
+#line 5097 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = (yyvsp[-1].nd);
                     }
-#line 11699 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11681 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 580: /* assocs: assoc  */
-#line 5121 "mrbgems/mruby-compiler/core/parse.y"
+#line 5103 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = list1((yyvsp[0].nd));
                     }
-#line 11707 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11689 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 581: /* assocs: assocs comma assoc  */
-#line 5125 "mrbgems/mruby-compiler/core/parse.y"
+#line 5107 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = push((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 11715 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11697 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 582: /* assoc: arg "=>" arg  */
-#line 5131 "mrbgems/mruby-compiler/core/parse.y"
+#line 5113 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[-2].nd));
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = cons((yyvsp[-2].nd), (yyvsp[0].nd));
                     }
-#line 11725 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11707 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 583: /* assoc: "local variable or method" "label" arg  */
-#line 5137 "mrbgems/mruby-compiler/core/parse.y"
+#line 5119 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = cons(new_sym(p, (yyvsp[-2].id)), (yyvsp[0].nd));
                     }
-#line 11734 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11716 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 584: /* assoc: "local variable or method" "label"  */
-#line 5142 "mrbgems/mruby-compiler/core/parse.y"
+#line 5124 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = cons(new_sym(p, (yyvsp[-1].id)), label_reference(p, (yyvsp[-1].id)));
                     }
-#line 11742 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11724 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 585: /* assoc: "numbered parameter" "label"  */
-#line 5146 "mrbgems/mruby-compiler/core/parse.y"
+#line 5128 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       mrb_sym sym = intern_numparam((yyvsp[-1].num));
                       (yyval.nd) = cons(new_sym(p, sym), label_reference(p, sym));
                     }
-#line 11751 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11733 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 586: /* assoc: "numbered parameter" "label" arg  */
-#line 5151 "mrbgems/mruby-compiler/core/parse.y"
+#line 5133 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = cons(new_sym(p, intern_numparam((yyvsp[-2].num))), (yyvsp[0].nd));
                     }
-#line 11760 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11742 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 587: /* assoc: string_fragment "label" arg  */
-#line 5156 "mrbgems/mruby-compiler/core/parse.y"
+#line 5138 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       if ((yyvsp[-2].nd)->cdr) {
@@ -11776,75 +11758,75 @@ yyreduce:
                         (yyval.nd) = cons(new_sym(p, new_strsym(p, (yyvsp[-2].nd)->car)), (yyvsp[0].nd));
                       }
                     }
-#line 11780 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11762 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 588: /* assoc: "**" arg  */
-#line 5172 "mrbgems/mruby-compiler/core/parse.y"
+#line 5154 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       void_expr_error(p, (yyvsp[0].nd));
                       (yyval.nd) = cons(new_kw_rest_args(p, 0), (yyvsp[0].nd));
                     }
-#line 11789 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11771 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 589: /* assoc: "**"  */
-#line 5177 "mrbgems/mruby-compiler/core/parse.y"
+#line 5159 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = cons(new_kw_rest_args(p, 0), new_lvar(p, intern_op(pow)));
                     }
-#line 11797 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11779 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 602: /* call_op: '.'  */
-#line 5203 "mrbgems/mruby-compiler/core/parse.y"
+#line 5185 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.num) = '.';
                     }
-#line 11805 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11787 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 603: /* call_op: "&."  */
-#line 5207 "mrbgems/mruby-compiler/core/parse.y"
+#line 5189 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.num) = 0;
                     }
-#line 11813 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11795 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 605: /* call_op2: "::"  */
-#line 5214 "mrbgems/mruby-compiler/core/parse.y"
+#line 5196 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.num) = tCOLON2;
                     }
-#line 11821 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11803 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 614: /* term: ';'  */
-#line 5235 "mrbgems/mruby-compiler/core/parse.y"
+#line 5217 "mrbgems/mruby-compiler/core/parse.y"
                       {yyerrok;}
-#line 11827 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11809 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 616: /* nl: '\n'  */
-#line 5240 "mrbgems/mruby-compiler/core/parse.y"
+#line 5222 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       p->lineno += (yyvsp[0].num);
                       p->column = 0;
                     }
-#line 11836 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11818 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
   case 620: /* none: %empty  */
-#line 5252 "mrbgems/mruby-compiler/core/parse.y"
+#line 5234 "mrbgems/mruby-compiler/core/parse.y"
                     {
                       (yyval.nd) = 0;
                     }
-#line 11844 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11826 "mrbgems/mruby-compiler/core/y.tab.c"
     break;
 
 
-#line 11848 "mrbgems/mruby-compiler/core/y.tab.c"
+#line 11830 "mrbgems/mruby-compiler/core/y.tab.c"
 
       default: break;
     }
@@ -12077,7 +12059,7 @@ yyreturnlab:
   return yyresult;
 }
 
-#line 5256 "mrbgems/mruby-compiler/core/parse.y"
+#line 5238 "mrbgems/mruby-compiler/core/parse.y"
 
 #define pylval  (*((YYSTYPE*)(p->ylval)))