Merge remote-tracking branch 'upstream/master' into mrbgems

1 files changed, 31 insertions, 3 deletions

diff --git a/src/class.c b/src/class.c
index 69aa31249..618a6d1f6 100644
--- a/src/class.c
+++ b/src/class.c
@@ -15,7 +15,7 @@
 #include "mruby/array.h"
 #include "error.h"
 
-KHASH_DEFINE(mt, mrb_sym, struct RProc*, 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;
@@ -630,7 +630,7 @@ mrb_get_args(mrb_state *mrb, const char *format, ...)
       }
       break;
     default:
-      mrb_raisef(mrb, E_ARGUMENT_ERROR, "invalide argument specifier %c", c);
+      mrb_raisef(mrb, E_ARGUMENT_ERROR, "invalid argument specifier %c", c);
       break;
     }
   }
@@ -848,6 +848,32 @@ mrb_mod_instance_methods(mrb_state *mrb, mrb_value mod)
   return class_instance_method_list(mrb, argc, argv, c, 0);
 }
 
+mrb_value mrb_yield_internal(mrb_state *mrb, mrb_value b, int argc, mrb_value *argv, mrb_value self, struct RClass *c);
+
+/* 15.2.2.4.35 */
+/*
+ *  call-seq:
+ *     mod.class_eval {| | block }  -> obj
+ *     mod.module_eval {| | block } -> obj
+ *
+ *  Evaluates block in the context of _mod_. This can
+ *  be used to add methods to a class. <code>module_eval</code> returns
+ *  the result of evaluating its argument.
+ */
+
+mrb_value
+mrb_mod_module_eval(mrb_state *mrb, mrb_value mod)
+{
+  mrb_value a, b;
+  struct RClass *c;
+
+  if (mrb_get_args(mrb, "|S&", &a, &b) == 1) {
+    mrb_raise(mrb, E_NOTIMP_ERROR, "module_eval/class_eval with string not implemented");
+  }
+  c = mrb_class_ptr(mod);
+  return mrb_yield_internal(mrb, b, 0, 0, mod, c);
+}
+
 mrb_value
 mrb_singleton_class(mrb_state *mrb, mrb_value v)
 {
@@ -1504,9 +1530,11 @@ mrb_init_class(mrb_state *mrb)
   mrb_define_method(mrb, mod, "include", mrb_mod_include, ARGS_ANY());               /* 15.2.2.4.27 */
   mrb_define_method(mrb, mod, "include?", mrb_mod_include_p, ARGS_REQ(1));           /* 15.2.2.4.28 */
   mrb_define_method(mrb, mod, "append_features", mrb_mod_append_features, ARGS_REQ(1)); /* 15.2.2.4.10 */
-  mrb_define_method(mrb, mod, "included", mrb_bob_init, ARGS_REQ(1));                /* 15.2.2.4.29 */
+  mrb_define_method(mrb, mod, "class_eval", mrb_mod_module_eval, ARGS_ANY());           /* 15.2.2.4.15 */
+  mrb_define_method(mrb, mod, "included", mrb_bob_init, ARGS_REQ(1));                     /* 15.2.2.4.29 */
   mrb_define_method(mrb, mod, "included_modules", mrb_mod_included_modules, ARGS_NONE()); /* 15.2.2.4.30 */
   mrb_define_method(mrb, mod, "instance_methods", mrb_mod_instance_methods, ARGS_ANY());  /* 15.2.2.4.33 */
+  mrb_define_method(mrb, mod, "module_eval", mrb_mod_module_eval, ARGS_ANY());            /* 15.2.2.4.35 */
 
   mrb_define_method(mrb, mod, "to_s", mrb_mod_to_s, ARGS_NONE());
   mrb_define_method(mrb, mod, "inspect", mrb_mod_to_s, ARGS_NONE());