move KHASH_DECLARE to header files

src/class.c

@@ -15,7 +15,8 @@
 #include "mruby/array.h"
 #include "error.h"
 
-#include "mruby/khash.h"
+KHASH_DEFINE(iv, mrb_sym, mrb_value,     1, kh_int_hash_func, kh_int_hash_equal);
+KHASH_DEFINE(mt, mrb_sym, struct RProc*, 1, kh_int_hash_func, kh_int_hash_equal);
 
 typedef struct fc_result {
     mrb_sym name;
@@ -25,9 +26,6 @@ typedef struct fc_result {
     struct fc_result *prev;
 } fcresult_t;
 
-int kiv_lookup(khash_t(iv) *table, mrb_sym key, mrb_value *value);
-extern struct kh_iv *mrb_class_tbl;
-
 void
 mrb_gc_mark_mt(mrb_state *mrb, struct RClass *c)
 {

src/kernel.c

@@ -10,14 +10,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include "mruby/proc.h"
-
 #include "mruby/range.h"
 #include "mruby/array.h"
 #include "mruby/hash.h"
 #include "mruby/class.h"
 #include "mruby/struct.h"
 #include "mruby/variable.h"
-#include "mruby/khash.h"
 #include "error.h"
 
 typedef enum {
@@ -1057,39 +1055,14 @@ mrb_value
 mrb_obj_remove_instance_variable(mrb_state *mrb, mrb_value self)
 {
   mrb_sym sym;
-  mrb_value name;
-  khash_t(iv) *h;
-  khiter_t k;
   mrb_value val;
-  mrb_value Qundef = mrb_undef_value();
 
-  mrb_get_args(mrb, "o", &name);
-  sym = mrb_to_id(mrb, name);
-  //if (OBJ_FROZEN(obj)) mrb_error_frozen("object");
-  //if (!mrb_is_instance_id(id)) {
-  //    mrb_name_error(mrb, id, "`%s' is not allowed as an instance variable name", mrb_sym2name(mrb, id));
-  //}
-  switch (mrb_type(self)) {
-    case MRB_TT_OBJECT:
-    case MRB_TT_CLASS:
-    case MRB_TT_MODULE:
-      if (!mrb_obj_ptr(self)->iv) break;
-      h = mrb_obj_ptr(self)->iv;
-      if (!h) break;
-      k = kh_get(iv, h, sym);
-      if (k != kh_end(h)) {
-        val = kh_value(h, k);
-        if (!mrb_obj_equal(mrb, val, Qundef)) {
-          kh_value(h, k) = Qundef;
-          return val;
-        }
-      }
-      break;
-    default:
-      break;
+  mrb_get_args(mrb, "n", &sym);
+  val = mrb_iv_remove(mrb, self, sym);
+  if (UNDEF_P(val)) {
+    mrb_name_error(mrb, sym, "instance variable %s not defined", mrb_sym2name(mrb, sym));
   }
-  mrb_name_error(mrb, sym, "instance variable %s not defined", mrb_sym2name(mrb, sym));
-  return mrb_nil_value();            /* not reached */
+  return val;
 }
 
 static inline int

src/variable.c

@@ -94,10 +94,28 @@ mrb_obj_iv_get(mrb_state *mrb, struct RObject *obj, mrb_sym sym)
   return ivget(mrb, obj->iv, sym);
 }
 
+static int
+obj_iv_p(mrb_value obj)
+{
+  switch (mrb_type(obj)) {
+    case MRB_TT_OBJECT:
+    case MRB_TT_CLASS:
+    case MRB_TT_MODULE:
+    case MRB_TT_HASH:
+    case MRB_TT_DATA:
+      return TRUE;
+    default:
+      return FALSE;
+  }
+}
+
 mrb_value
 mrb_iv_get(mrb_state *mrb, mrb_value obj, mrb_sym sym)
 {
-  return mrb_obj_iv_get(mrb, mrb_obj_ptr(obj), sym);
+  if (obj_iv_p(obj)) {
+    return mrb_obj_iv_get(mrb, mrb_obj_ptr(obj), sym);
+  }
+  return mrb_nil_value();
 }
 
 static void
@@ -127,7 +145,30 @@ mrb_obj_iv_set(mrb_state *mrb, struct RObject *obj, mrb_sym sym, mrb_value v)
 void
 mrb_iv_set(mrb_state *mrb, mrb_value obj, mrb_sym sym, mrb_value v) /* mrb_ivar_set */
 {
-  mrb_obj_iv_set(mrb, mrb_obj_ptr(obj), sym, v);
+  if (obj_iv_p(obj)) {
+    mrb_obj_iv_set(mrb, mrb_obj_ptr(obj), sym, v);
+  }
+}
+
+mrb_value
+mrb_iv_remove(mrb_state *mrb, mrb_value obj, mrb_sym sym)
+{
+  mrb_value val;
+
+  if (obj_iv_p(obj)) {
+    khash_t(iv) *h = mrb_obj_ptr(obj)->iv;
+    khiter_t k;
+
+    if (h) {
+      k = kh_get(iv, h, sym);
+      if (k != kh_end(h)) {
+	val = kh_value(h, k);
+	kh_del(iv, h, k);
+	return val;
+      }
+    }
+  }
+  return mrb_undef_value();
 }
 
 mrb_value
@@ -366,7 +407,7 @@ mrb_st_lookup(struct kh_iv *table, mrb_sym id, khiter_t *value)
   }
 }
 
-int
+static int
 kiv_lookup(khash_t(iv)* table, mrb_sym key, mrb_value *value)
 {
   khash_t(iv) *h=table;