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/*
** etc.c -
**
** See Copyright Notice in mruby.h
*/
#include "mruby.h"
#include "mruby/string.h"
#include "error.h"
#include "mruby/numeric.h"
#include "mruby/data.h"
struct RData*
mrb_data_object_alloc(mrb_state *mrb, struct RClass *klass, void *ptr, const mrb_data_type *type)
{
struct RData *data;
data = (struct RData*)mrb_obj_alloc(mrb, MRB_TT_DATA, klass);
data->data = ptr;
data->type = (mrb_data_type*) type;
return data;
}
void
mrb_data_check_type(mrb_state *mrb, mrb_value obj, const mrb_data_type *type)
{
if (mrb_special_const_p(obj) || (mrb_type(obj) != MRB_TT_DATA)) {
mrb_check_type(mrb, obj, MRB_TT_DATA);
}
if (DATA_TYPE(obj) != type) {
const mrb_data_type *t2 = DATA_TYPE(obj);
if (t2) {
mrb_raisef(mrb, E_TYPE_ERROR, "wrong argument type %S (expected %S)",
mrb_str_new_cstr(mrb, t2->struct_name), mrb_str_new_cstr(mrb, type->struct_name));
}
}
}
void *
mrb_data_check_and_get(mrb_state *mrb, mrb_value obj, const mrb_data_type *type)
{
mrb_data_check_type(mrb, obj, type);
return DATA_PTR(obj);
}
void *
mrb_data_get_ptr(mrb_state *mrb, mrb_value obj, const mrb_data_type *type)
{
if (mrb_special_const_p(obj) || (mrb_type(obj) != MRB_TT_DATA)) {
return NULL;
}
if (DATA_TYPE(obj) != type) {
return NULL;
}
return DATA_PTR(obj);
}
mrb_value
mrb_lastline_get(mrb_state *mrb)
{
mrb_value *argv;
int argc;
mrb_get_args(mrb, "*", &argv, &argc);
if (argc < 1) {
return mrb_nil_value();
}
else
{
return argv[0];
}
}
/* ------------------------------------------------ */
/*
* Calls func(obj, arg, recursive), where recursive is non-zero if the
* current method is called recursively on obj
*/
mrb_value
mrb_exec_recursive(mrb_state *mrb, mrb_value (*func) (mrb_state *, mrb_value, mrb_value, int), mrb_value obj, void *arg)
{
return func(mrb, obj, *(mrb_value*)arg, 0);
}
mrb_sym
mrb_obj_to_sym(mrb_state *mrb, mrb_value name)
{
mrb_value tmp;
mrb_sym id;
switch (mrb_type(name)) {
default:
tmp = mrb_check_string_type(mrb, name);
if (mrb_nil_p(tmp)) {
tmp = mrb_inspect(mrb, name);
mrb_raisef(mrb, E_TYPE_ERROR, "%S is not a symbol", tmp);
}
name = tmp;
/* fall through */
case MRB_TT_STRING:
name = mrb_str_intern(mrb, name);
/* fall through */
case MRB_TT_SYMBOL:
return mrb_symbol(name);
}
return id;
}
/*
* call-seq:
* proc { |...| block } -> a_proc
*
* Equivalent to <code>Proc.new</code>.
*/
mrb_value
mrb_block_proc(void)
{
return mrb_nil_value();
}
static mrb_int
float_id(mrb_float f)
{
const char *p = (const char*)&f;
int len = sizeof(f);
mrb_int id = 0;
while (len--) {
id = id*65599 + *p;
p++;
}
id = id + (id>>5);
return id;
}
mrb_int
mrb_obj_id(mrb_value obj)
{
mrb_int tt = mrb_type(obj);
#define MakeID2(p,t) (((intptr_t)(p))^(t))
#define MakeID(p) MakeID2(p,tt)
switch (tt) {
case MRB_TT_FREE:
case MRB_TT_UNDEF:
return MakeID(0); /* not define */
case MRB_TT_FALSE:
if (mrb_nil_p(obj))
return MakeID(1);
return MakeID(0);
case MRB_TT_TRUE:
return MakeID(1);
case MRB_TT_SYMBOL:
return MakeID(mrb_symbol(obj));
case MRB_TT_FIXNUM:
return MakeID2(float_id((mrb_float)mrb_fixnum(obj)), MRB_TT_FLOAT);
case MRB_TT_FLOAT:
return MakeID(float_id(mrb_float(obj)));
case MRB_TT_STRING:
case MRB_TT_OBJECT:
case MRB_TT_CLASS:
case MRB_TT_MODULE:
case MRB_TT_ICLASS:
case MRB_TT_SCLASS:
case MRB_TT_PROC:
case MRB_TT_ARRAY:
case MRB_TT_HASH:
case MRB_TT_RANGE:
case MRB_TT_EXCEPTION:
case MRB_TT_FILE:
case MRB_TT_DATA:
default:
return MakeID(obj.value.p);
}
}
#ifdef MRB_WORD_BOXING
mrb_value
mrb_float_value(mrb_state *mrb, mrb_float f)
{
mrb_value v;
v.value.p = mrb_obj_alloc(mrb, MRB_TT_FLOAT, mrb->float_class);
v.value.fp->f = f;
return v;
}
mrb_value
mrb_voidp_value(mrb_state *mrb, void *p)
{
mrb_value v;
v.value.p = mrb_obj_alloc(mrb, MRB_TT_VOIDP, mrb->object_class);
v.value.vp->p = p;
return v;
}
#endif /* MRB_WORD_BOXING */
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