mbed I/F binding for mruby
Dependents: mruby_mbed_web mirb_mbed
mbed-mruby
How to use
Class
mrbgems/mruby-kernel-ext/kernel.c
- Committer:
- mzta
- Date:
- 2015-03-25
- Revision:
- 0:158c61bb030f
File content as of revision 0:158c61bb030f:
#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: * 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_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) { }