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#include <mruby.h>
#include <mruby/error.h>
#include <mruby/array.h>
#include <mruby/hash.h>
#include <mruby/range.h>
static mrb_value
mrb_f_caller(mrb_state *mrb, mrb_value self)
{
mrb_value bt, v, length;
mrb_int bt_len, argc, lev, n;
bt = mrb_get_backtrace(mrb);
bt_len = RARRAY_LEN(bt);
argc = mrb_get_args(mrb, "|oo", &v, &length);
switch (argc) {
case 0:
lev = 1;
n = bt_len - lev;
break;
case 1:
if (mrb_type(v) == MRB_TT_RANGE) {
mrb_int beg, len;
if (mrb_range_beg_len(mrb, v, &beg, &len, bt_len, TRUE) == 1) {
lev = beg;
n = len;
}
else {
return mrb_nil_value();
}
}
else {
v = mrb_to_int(mrb, v);
lev = mrb_fixnum(v);
if (lev < 0) {
mrb_raisef(mrb, E_ARGUMENT_ERROR, "negative level (%S)", v);
}
n = bt_len - lev;
}
break;
case 2:
lev = mrb_fixnum(mrb_to_int(mrb, v));
n = mrb_fixnum(mrb_to_int(mrb, length));
if (lev < 0) {
mrb_raisef(mrb, E_ARGUMENT_ERROR, "negative level (%S)", v);
}
if (n < 0) {
mrb_raisef(mrb, E_ARGUMENT_ERROR, "negative size (%S)", length);
}
break;
default:
lev = n = 0;
break;
}
if (n == 0) {
return mrb_ary_new(mrb);
}
return mrb_funcall(mrb, bt, "[]", 2, mrb_fixnum_value(lev), mrb_fixnum_value(n));
}
/*
* 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:
* Integer(arg,base=0) -> integer
*
* Converts <i>arg</i> to a <code>Fixnum</code>.
* Numeric types are converted directly (with floating point numbers
* being truncated). <i>base</i> (0, or between 2 and 36) is a base for
* integer string representation. If <i>arg</i> is a <code>String</code>,
* when <i>base</i> is omitted or equals to zero, radix indicators
* (<code>0</code>, <code>0b</code>, and <code>0x</code>) are honored.
* In any case, strings should be strictly conformed to numeric
* representation. This behavior is different from that of
* <code>String#to_i</code>. Non string values will be converted using
* <code>to_int</code>, and <code>to_i</code>. Passing <code>nil</code>
* raises a TypeError.
*
* Integer(123.999) #=> 123
* Integer("0x1a") #=> 26
* Integer(Time.new) #=> 1204973019
* Integer("0930", 10) #=> 930
* Integer("111", 2) #=> 7
* Integer(nil) #=> TypeError
*/
static mrb_value
mrb_f_integer(mrb_state *mrb, mrb_value self)
{
mrb_value arg;
mrb_int base = 0;
mrb_get_args(mrb, "o|i", &arg, &base);
return mrb_convert_to_integer(mrb, arg, base);
}
/*
* 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_module_function(mrb, krn, "caller", mrb_f_caller, MRB_ARGS_OPT(2));
mrb_define_method(mrb, krn, "__method__", mrb_f_method, MRB_ARGS_NONE());
mrb_define_module_function(mrb, krn, "Integer", mrb_f_integer, MRB_ARGS_ANY());
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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