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#include "mruby.h"
#include "mruby/error.h"
#include "mruby/array.h"
#include "mruby/hash.h"
/*
* call-seq:
* __method__ -> symbol
*
* Returns the name at the definition of the current method as a
* Symbol.
* If called outside of a method, it returns <code>nil</code>.
*
*/
static mrb_value
mrb_f_method(mrb_state *mrb, mrb_value self)
{
mrb_callinfo *ci = mrb->c->ci;
ci--;
if (ci->mid)
return mrb_symbol_value(ci->mid);
else
return mrb_nil_value();
}
/*
* call-seq:
* Float(arg) -> float
*
* Returns <i>arg</i> converted to a float. Numeric types are converted
* directly, the rest are converted using <i>arg</i>.to_f.
*
* Float(1) #=> 1.0
* Float(123.456) #=> 123.456
* Float("123.456") #=> 123.456
* Float(nil) #=> TypeError
*/
static mrb_value
mrb_f_float(mrb_state *mrb, mrb_value self)
{
mrb_value arg;
mrb_get_args(mrb, "o", &arg);
return mrb_Float(mrb, arg);
}
/*
* call-seq:
* String(arg) -> string
*
* Returns <i>arg</i> as an <code>String</code>.
*
* First tries to call its <code>to_str</code> method, then its to_s method.
*
* String(self) #=> "main"
* String(self.class) #=> "Object"
* String(123456) #=> "123456"
*/
static mrb_value
mrb_f_string(mrb_state *mrb, mrb_value self)
{
mrb_value arg, tmp;
mrb_get_args(mrb, "o", &arg);
tmp = mrb_check_convert_type(mrb, arg, MRB_TT_STRING, "String", "to_str");
if (mrb_nil_p(tmp)) {
tmp = mrb_check_convert_type(mrb, arg, MRB_TT_STRING, "String", "to_s");
}
return tmp;
}
/*
* call-seq:
* Array(arg) -> array
*
* Returns +arg+ as an Array.
*
* First tries to call Array#to_ary on +arg+, then Array#to_a.
*
* Array(1..5) #=> [1, 2, 3, 4, 5]
*
*/
static mrb_value
mrb_f_array(mrb_state *mrb, mrb_value self)
{
mrb_value arg, tmp;
mrb_get_args(mrb, "o", &arg);
tmp = mrb_check_convert_type(mrb, arg, MRB_TT_ARRAY, "Array", "to_ary");
if (mrb_nil_p(tmp)) {
tmp = mrb_check_convert_type(mrb, arg, MRB_TT_ARRAY, "Array", "to_a");
}
if (mrb_nil_p(tmp)) {
return mrb_ary_new_from_values(mrb, 1, &arg);
}
return tmp;
}
/*
* call-seq:
* Hash(arg) -> hash
*
* Converts <i>arg</i> to a <code>Hash</code> by calling
* <i>arg</i><code>.to_hash</code>. Returns an empty <code>Hash</code> when
* <i>arg</i> is <tt>nil</tt> or <tt>[]</tt>.
*
* Hash([]) #=> {}
* Hash(nil) #=> {}
* Hash(key: :value) #=> {:key => :value}
* Hash([1, 2, 3]) #=> TypeError
*/
static mrb_value
mrb_f_hash(mrb_state *mrb, mrb_value self)
{
mrb_value arg, tmp;
mrb_get_args(mrb, "o", &arg);
if (mrb_nil_p(arg)) {
return mrb_hash_new(mrb);
}
tmp = mrb_check_convert_type(mrb, arg, MRB_TT_HASH, "Hash", "to_hash");
if (mrb_nil_p(tmp)) {
if (mrb_array_p(arg) && RARRAY_LEN(arg) == 0) {
return mrb_hash_new(mrb);
}
mrb_raisef(mrb, E_TYPE_ERROR, "can't convert %S into Hash",
mrb_str_new_cstr(mrb, mrb_obj_classname(mrb, arg)));
}
return tmp;
}
void
mrb_mruby_kernel_ext_gem_init(mrb_state *mrb)
{
struct RClass *krn = mrb->kernel_module;
mrb_define_module_function(mrb, krn, "fail", mrb_f_raise, MRB_ARGS_OPT(2));
mrb_define_method(mrb, krn, "__method__", mrb_f_method, MRB_ARGS_NONE());
mrb_define_module_function(mrb, krn, "Float", mrb_f_float, MRB_ARGS_REQ(1));
mrb_define_module_function(mrb, krn, "String", mrb_f_string, MRB_ARGS_REQ(1));
mrb_define_module_function(mrb, krn, "Array", mrb_f_array, MRB_ARGS_REQ(1));
mrb_define_module_function(mrb, krn, "Hash", mrb_f_hash, MRB_ARGS_REQ(1));
}
void
mrb_mruby_kernel_ext_gem_final(mrb_state *mrb)
{
}
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