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Supress using switches with fallthru or a empty default label.

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This commit is contained in:
Masaki Muranaka
2012-07-16 13:36:36 +09:00
parent 49cac5f97d
commit 0339317bd6
2 changed files with 52 additions and 70 deletions
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src/parse.y
+45 -58
View File
@@ -805,12 +805,8 @@ ret_args(parser_state *p, node *n)
static void
assignable(parser_state *p, node *lhs)
{
switch ((int)(intptr_t)lhs->car) {
case NODE_LVAR:
if ((int)(intptr_t)lhs->car == NODE_LVAR) {
local_add(p, (mrb_sym)lhs->cdr);
break;
default:
break;
}
}
@@ -819,17 +815,14 @@ var_reference(parser_state *p, node *lhs)
{
node *n;
switch ((int)(intptr_t)lhs->car) {
case NODE_LVAR:
if ((int)(intptr_t)lhs->car == NODE_LVAR) {
if (!local_var_p(p, (mrb_sym)lhs->cdr)) {
n = new_fcall(p, (mrb_sym)lhs->cdr, 0);
cons_free(lhs);
return n;
}
break;
default:
break;
}
return lhs;
}
@@ -3038,15 +3031,16 @@ yywarning_s(parser_state *p, const char *fmt, const char *s)
static void
backref_error(parser_state *p, node *n)
{
switch ((int)(intptr_t)n->car) {
case NODE_NTH_REF:
int c;
c = (int)(intptr_t)n->car;
if (c == NODE_NTH_REF) {
yyerror_i(p, "can't set variable $%d", (int)(intptr_t)n->cdr);
break;
case NODE_BACK_REF:
} else if (c == NODE_BACK_REF) {
yyerror_i(p, "can't set variable $%c", (int)(intptr_t)n->cdr);
break;
default:
break;
} else {
mrb_bug("Internal error in backref_error() : n=>car == %d", c);
}
}
@@ -3589,11 +3583,10 @@ parser_yylex(parser_state *p)
c = '*';
}
}
switch (p->lstate) {
case EXPR_FNAME: case EXPR_DOT:
p->lstate = EXPR_ARG; break;
default:
p->lstate = EXPR_BEG; break;
if (p->lstate == EXPR_FNAME || p->lstate == EXPR_DOT) {
p->lstate = EXPR_ARG;
} else {
p->lstate = EXPR_BEG;
}
return c;
@@ -3624,11 +3617,10 @@ parser_yylex(parser_state *p)
goto retry;
}
}
switch (p->lstate) {
case EXPR_FNAME: case EXPR_DOT:
p->lstate = EXPR_ARG; break;
default:
p->lstate = EXPR_BEG; break;
if (p->lstate == EXPR_FNAME || p->lstate == EXPR_DOT) {
p->lstate = EXPR_ARG;
} else {
p->lstate = EXPR_BEG;
}
if ((c = nextc(p)) == '=') {
if ((c = nextc(p)) == '=') {
@@ -3660,13 +3652,13 @@ parser_yylex(parser_state *p)
if (token) return token;
}
#endif
switch (p->lstate) {
case EXPR_FNAME: case EXPR_DOT:
p->lstate = EXPR_ARG; break;
case EXPR_CLASS:
p->cmd_start = TRUE;
default:
p->lstate = EXPR_BEG; break;
if (p->lstate == EXPR_FNAME || p->lstate == EXPR_DOT) {
p->lstate = EXPR_ARG;
} else {
p->lstate = EXPR_BEG;
if (p->lstate == EXPR_CLASS) {
p->cmd_start = TRUE;
}
}
if (c == '=') {
if ((c = nextc(p)) == '>') {
@@ -3688,11 +3680,10 @@ parser_yylex(parser_state *p)
return '<';
case '>':
switch (p->lstate) {
case EXPR_FNAME: case EXPR_DOT:
p->lstate = EXPR_ARG; break;
default:
p->lstate = EXPR_BEG; break;
if (p->lstate == EXPR_FNAME || p->lstate == EXPR_DOT) {
p->lstate = EXPR_ARG;
} else {
p->lstate = EXPR_BEG;
}
if ((c = nextc(p)) == '=') {
return tGEQ;
@@ -3820,10 +3811,9 @@ parser_yylex(parser_state *p)
else {
c = '&';
}
switch (p->lstate) {
case EXPR_FNAME: case EXPR_DOT:
p->lstate = EXPR_ARG; break;
default:
if (p->lstate == EXPR_FNAME || p->lstate == EXPR_DOT) {
p->lstate = EXPR_ARG;
} else {
p->lstate = EXPR_BEG;
}
return c;
@@ -4206,11 +4196,10 @@ parser_yylex(parser_state *p)
#endif
return tREGEXP_BEG;
}
switch (p->lstate) {
case EXPR_FNAME: case EXPR_DOT:
p->lstate = EXPR_ARG; break;
default:
p->lstate = EXPR_BEG; break;
if (p->lstate == EXPR_FNAME || p->lstate == EXPR_DOT) {
p->lstate = EXPR_ARG;
} else {
p->lstate = EXPR_BEG;
}
return '/';
@@ -4220,11 +4209,10 @@ parser_yylex(parser_state *p)
p->lstate = EXPR_BEG;
return tOP_ASGN;
}
switch (p->lstate) {
case EXPR_FNAME: case EXPR_DOT:
p->lstate = EXPR_ARG; break;
default:
p->lstate = EXPR_BEG; break;
if (p->lstate == EXPR_FNAME || p->lstate == EXPR_DOT) {
p->lstate = EXPR_ARG;
} else {
p->lstate = EXPR_BEG;
}
pushback(p, c);
return '^';
@@ -4409,11 +4397,10 @@ parser_yylex(parser_state *p)
if (IS_SPCARG(c)) {
goto quotation;
}
switch (p->lstate) {
case EXPR_FNAME: case EXPR_DOT:
p->lstate = EXPR_ARG; break;
default:
p->lstate = EXPR_BEG; break;
if (p->lstate == EXPR_FNAME || p->lstate == EXPR_DOT) {
p->lstate = EXPR_ARG;
} else {
p->lstate = EXPR_BEG;
}
pushback(p, c);
return '%';
src/range.c
+7 -12
View File
@@ -20,19 +20,14 @@ static void
range_check(mrb_state *mrb, mrb_value a, mrb_value b)
{
mrb_value ans;
int ta;
int tb;
switch (mrb_type(a)) {
case MRB_TT_FIXNUM:
case MRB_TT_FLOAT:
switch (mrb_type(b)) {
case MRB_TT_FIXNUM:
case MRB_TT_FLOAT:
return;
default:
break;
}
default:
break;
ta = mrb_type(a);
tb = mrb_type(b);
if ((ta == MRB_TT_FIXNUM || ta == MRB_TT_FLOAT) &&
(tb == MRB_TT_FIXNUM || tb == MRB_TT_FLOAT)) {
return;
}
mrb_p(mrb, a);