Merge pull request #102 from MobiRuby/add_const

add const to char*

include/mruby.h

@@ -300,8 +300,8 @@ mrb_value mrb_instance_new(mrb_state *mrb, mrb_value cv);
 struct RClass * mrb_class_new(mrb_state *mrb, struct RClass *super);
 struct RClass * mrb_module_new(mrb_state *mrb);
 struct RClass * mrb_class_from_sym(mrb_state *mrb, struct RClass *klass, mrb_sym name);
-struct RClass * mrb_class_get(mrb_state *mrb, char *name);
-struct RClass * mrb_class_obj_get(mrb_state *mrb, char *name);
+struct RClass * mrb_class_get(mrb_state *mrb, const char *name);
+struct RClass * mrb_class_obj_get(mrb_state *mrb, const char *name);
 
 mrb_value mrb_obj_dup(mrb_state *mrb, mrb_value obj);
 mrb_value mrb_check_to_integer(mrb_state *mrb, mrb_value val, const char *method);

src/compile.h

@@ -41,7 +41,7 @@ struct mrb_parser_state {
   mrb_state *mrb;
   struct mrb_pool *pool;
   mrb_ast_node *cells;
-  char *s, *send;
+  const char *s, *send;
   FILE *f;
   int lineno;
   int column;
@@ -78,9 +78,9 @@ struct mrb_parser_state {
 };
 
 struct mrb_parser_state* mrb_parse_file(mrb_state*,FILE*);
-struct mrb_parser_state* mrb_parse_string(mrb_state*,char*);
-struct mrb_parser_state* mrb_parse_nstring(mrb_state*,char*,size_t);
-struct mrb_parser_state* mrb_parse_nstring_ext(mrb_state*,char*,size_t);
+struct mrb_parser_state* mrb_parse_string(mrb_state*,const char*);
+struct mrb_parser_state* mrb_parse_nstring(mrb_state*,const char*,size_t);
+struct mrb_parser_state* mrb_parse_nstring_ext(mrb_state*,const char*,size_t);
 int mrb_generate_code(mrb_state*, mrb_ast_node*);
 
 int mrb_compile_file(mrb_state*,FILE*);

src/parse.y

@@ -4683,7 +4683,7 @@ mrb_parse_file(mrb_state *mrb, FILE *f)
 }
 
 parser_state*
-mrb_parse_nstring(mrb_state *mrb, char *s, size_t len)
+mrb_parse_nstring(mrb_state *mrb, const char *s, size_t len)
 {
   parser_state *p;
 
@@ -4698,7 +4698,7 @@ mrb_parse_nstring(mrb_state *mrb, char *s, size_t len)
 }
 
 parser_state*
-mrb_parse_nstring_ext(mrb_state *mrb, char *s, size_t len)
+mrb_parse_nstring_ext(mrb_state *mrb, const char *s, size_t len)
 {
   parser_state *p;
 
@@ -4714,7 +4714,7 @@ mrb_parse_nstring_ext(mrb_state *mrb, char *s, size_t len)
 }
 
 parser_state*
-mrb_parse_string(mrb_state *mrb, char *s)
+mrb_parse_string(mrb_state *mrb, const char *s)
 {
   return mrb_parse_nstring(mrb, s, strlen(s));
 }

src/variable.c

@@ -436,7 +436,7 @@ mrb_class_from_sym(mrb_state *mrb, struct RClass *klass, mrb_sym id)
 }
 
 struct RClass *
-mrb_class_get(mrb_state *mrb, char *name)
+mrb_class_get(mrb_state *mrb, const char *name)
 {
   return mrb_class_from_sym(mrb, mrb->object_class, mrb_intern(mrb, name));
 }
@@ -449,7 +449,7 @@ mrb_attr_get(mrb_state *mrb, mrb_value obj, mrb_sym id)
 }
 
 struct RClass *
-mrb_class_obj_get(mrb_state *mrb, char *name)
+mrb_class_obj_get(mrb_state *mrb, const char *name)
 {
   mrb_value mod = mrb_obj_value(mrb->object_class);
   mrb_sym sym = mrb_intern(mrb, name);