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mbed I/F binding for mruby

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mrbgems/mruby-kernel-ext/kernel.c@1:8ccd1d494a4b, 2015-04-13 (annotated)

Committer:
mzta
Date:
Mon Apr 13 05:20:15 2015 +0000
Revision:
1:8ccd1d494a4b
Parent:
0:158c61bb030f 
- code refactoring.; - add SPI, SPISlave, I2C class to mruby-mbed (Incomplete).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mzta 0:158c61bb030f 1 #include "mruby.h"
mzta 0:158c61bb030f 2 #include "mruby/error.h"
mzta 0:158c61bb030f 3 #include "mruby/array.h"
mzta 0:158c61bb030f 4 #include "mruby/hash.h"
mzta 0:158c61bb030f 5
mzta 0:158c61bb030f 6 /*
mzta 0:158c61bb030f 7 * call-seq:
mzta 0:158c61bb030f 8 * __method__ -> symbol
mzta 0:158c61bb030f 9 *
mzta 0:158c61bb030f 10 * Returns the name at the definition of the current method as a
mzta 0:158c61bb030f 11 * Symbol.
mzta 0:158c61bb030f 12 * If called outside of a method, it returns <code>nil</code>.
mzta 0:158c61bb030f 13 *
mzta 0:158c61bb030f 14 */
mzta 0:158c61bb030f 15 static mrb_value
mzta 0:158c61bb030f 16 mrb_f_method(mrb_state *mrb, mrb_value self)
mzta 0:158c61bb030f 17 {
mzta 0:158c61bb030f 18 mrb_callinfo *ci = mrb->c->ci;
mzta 0:158c61bb030f 19 ci--;
mzta 0:158c61bb030f 20 if (ci->mid)
mzta 0:158c61bb030f 21 return mrb_symbol_value(ci->mid);
mzta 0:158c61bb030f 22 else
mzta 0:158c61bb030f 23 return mrb_nil_value();
mzta 0:158c61bb030f 24 }
mzta 0:158c61bb030f 25
mzta 0:158c61bb030f 26 /*
mzta 0:158c61bb030f 27 * call-seq:
mzta 0:158c61bb030f 28 * Integer(arg,base=0) -> integer
mzta 0:158c61bb030f 29 *
mzta 0:158c61bb030f 30 * Converts <i>arg</i> to a <code>Fixnum</code>.
mzta 0:158c61bb030f 31 * Numeric types are converted directly (with floating point numbers
mzta 0:158c61bb030f 32 * being truncated). <i>base</i> (0, or between 2 and 36) is a base for
mzta 0:158c61bb030f 33 * integer string representation. If <i>arg</i> is a <code>String</code>,
mzta 0:158c61bb030f 34 * when <i>base</i> is omitted or equals to zero, radix indicators
mzta 0:158c61bb030f 35 * (<code>0</code>, <code>0b</code>, and <code>0x</code>) are honored.
mzta 0:158c61bb030f 36 * In any case, strings should be strictly conformed to numeric
mzta 0:158c61bb030f 37 * representation. This behavior is different from that of
mzta 0:158c61bb030f 38 * <code>String#to_i</code>. Non string values will be converted using
mzta 0:158c61bb030f 39 * <code>to_int</code>, and <code>to_i</code>. Passing <code>nil</code>
mzta 0:158c61bb030f 40 * raises a TypeError.
mzta 0:158c61bb030f 41 *
mzta 0:158c61bb030f 42 * Integer(123.999) #=> 123
mzta 0:158c61bb030f 43 * Integer("0x1a") #=> 26
mzta 0:158c61bb030f 44 * Integer(Time.new) #=> 1204973019
mzta 0:158c61bb030f 45 * Integer("0930", 10) #=> 930
mzta 0:158c61bb030f 46 * Integer("111", 2) #=> 7
mzta 0:158c61bb030f 47 * Integer(nil) #=> TypeError
mzta 0:158c61bb030f 48 */
mzta 0:158c61bb030f 49 static mrb_value
mzta 0:158c61bb030f 50 mrb_f_integer(mrb_state *mrb, mrb_value self)
mzta 0:158c61bb030f 51 {
mzta 0:158c61bb030f 52 mrb_value arg;
mzta 0:158c61bb030f 53 mrb_int base = 0;
mzta 0:158c61bb030f 54
mzta 0:158c61bb030f 55 mrb_get_args(mrb, "o|i", &arg, &base);
mzta 0:158c61bb030f 56 return mrb_convert_to_integer(mrb, arg, base);
mzta 0:158c61bb030f 57 }
mzta 0:158c61bb030f 58
mzta 0:158c61bb030f 59 /*
mzta 0:158c61bb030f 60 * call-seq:
mzta 0:158c61bb030f 61 * Float(arg) -> float
mzta 0:158c61bb030f 62 *
mzta 0:158c61bb030f 63 * Returns <i>arg</i> converted to a float. Numeric types are converted
mzta 0:158c61bb030f 64 * directly, the rest are converted using <i>arg</i>.to_f.
mzta 0:158c61bb030f 65 *
mzta 0:158c61bb030f 66 * Float(1) #=> 1.0
mzta 0:158c61bb030f 67 * Float(123.456) #=> 123.456
mzta 0:158c61bb030f 68 * Float("123.456") #=> 123.456
mzta 0:158c61bb030f 69 * Float(nil) #=> TypeError
mzta 0:158c61bb030f 70 */
mzta 0:158c61bb030f 71 static mrb_value
mzta 0:158c61bb030f 72 mrb_f_float(mrb_state *mrb, mrb_value self)
mzta 0:158c61bb030f 73 {
mzta 0:158c61bb030f 74 mrb_value arg;
mzta 0:158c61bb030f 75
mzta 0:158c61bb030f 76 mrb_get_args(mrb, "o", &arg);
mzta 0:158c61bb030f 77 return mrb_Float(mrb, arg);
mzta 0:158c61bb030f 78 }
mzta 0:158c61bb030f 79
mzta 0:158c61bb030f 80 /*
mzta 0:158c61bb030f 81 * call-seq:
mzta 0:158c61bb030f 82 * String(arg) -> string
mzta 0:158c61bb030f 83 *
mzta 0:158c61bb030f 84 * Returns <i>arg</i> as an <code>String</code>.
mzta 0:158c61bb030f 85 *
mzta 0:158c61bb030f 86 * First tries to call its <code>to_str</code> method, then its to_s method.
mzta 0:158c61bb030f 87 *
mzta 0:158c61bb030f 88 * String(self) #=> "main"
mzta 0:158c61bb030f 89 * String(self.class) #=> "Object"
mzta 0:158c61bb030f 90 * String(123456) #=> "123456"
mzta 0:158c61bb030f 91 */
mzta 0:158c61bb030f 92 static mrb_value
mzta 0:158c61bb030f 93 mrb_f_string(mrb_state *mrb, mrb_value self)
mzta 0:158c61bb030f 94 {
mzta 0:158c61bb030f 95 mrb_value arg, tmp;
mzta 0:158c61bb030f 96
mzta 0:158c61bb030f 97 mrb_get_args(mrb, "o", &arg);
mzta 0:158c61bb030f 98 tmp = mrb_check_convert_type(mrb, arg, MRB_TT_STRING, "String", "to_str");
mzta 0:158c61bb030f 99 if (mrb_nil_p(tmp)) {
mzta 0:158c61bb030f 100 tmp = mrb_check_convert_type(mrb, arg, MRB_TT_STRING, "String", "to_s");
mzta 0:158c61bb030f 101 }
mzta 0:158c61bb030f 102 return tmp;
mzta 0:158c61bb030f 103 }
mzta 0:158c61bb030f 104
mzta 0:158c61bb030f 105 /*
mzta 0:158c61bb030f 106 * call-seq:
mzta 0:158c61bb030f 107 * Array(arg) -> array
mzta 0:158c61bb030f 108 *
mzta 0:158c61bb030f 109 * Returns +arg+ as an Array.
mzta 0:158c61bb030f 110 *
mzta 0:158c61bb030f 111 * First tries to call Array#to_ary on +arg+, then Array#to_a.
mzta 0:158c61bb030f 112 *
mzta 0:158c61bb030f 113 * Array(1..5) #=> [1, 2, 3, 4, 5]
mzta 0:158c61bb030f 114 *
mzta 0:158c61bb030f 115 */
mzta 0:158c61bb030f 116 static mrb_value
mzta 0:158c61bb030f 117 mrb_f_array(mrb_state *mrb, mrb_value self)
mzta 0:158c61bb030f 118 {
mzta 0:158c61bb030f 119 mrb_value arg, tmp;
mzta 0:158c61bb030f 120
mzta 0:158c61bb030f 121 mrb_get_args(mrb, "o", &arg);
mzta 0:158c61bb030f 122 tmp = mrb_check_convert_type(mrb, arg, MRB_TT_ARRAY, "Array", "to_ary");
mzta 0:158c61bb030f 123 if (mrb_nil_p(tmp)) {
mzta 0:158c61bb030f 124 tmp = mrb_check_convert_type(mrb, arg, MRB_TT_ARRAY, "Array", "to_a");
mzta 0:158c61bb030f 125 }
mzta 0:158c61bb030f 126 if (mrb_nil_p(tmp)) {
mzta 0:158c61bb030f 127 return mrb_ary_new_from_values(mrb, 1, &arg);
mzta 0:158c61bb030f 128 }
mzta 0:158c61bb030f 129
mzta 0:158c61bb030f 130 return tmp;
mzta 0:158c61bb030f 131 }
mzta 0:158c61bb030f 132
mzta 0:158c61bb030f 133 /*
mzta 0:158c61bb030f 134 * call-seq:
mzta 0:158c61bb030f 135 * Hash(arg) -> hash
mzta 0:158c61bb030f 136 *
mzta 0:158c61bb030f 137 * Converts <i>arg</i> to a <code>Hash</code> by calling
mzta 0:158c61bb030f 138 * <i>arg</i><code>.to_hash</code>. Returns an empty <code>Hash</code> when
mzta 0:158c61bb030f 139 * <i>arg</i> is <tt>nil</tt> or <tt>[]</tt>.
mzta 0:158c61bb030f 140 *
mzta 0:158c61bb030f 141 * Hash([]) #=> {}
mzta 0:158c61bb030f 142 * Hash(nil) #=> {}
mzta 0:158c61bb030f 143 * Hash(key: :value) #=> {:key => :value}
mzta 0:158c61bb030f 144 * Hash([1, 2, 3]) #=> TypeError
mzta 0:158c61bb030f 145 */
mzta 0:158c61bb030f 146 static mrb_value
mzta 0:158c61bb030f 147 mrb_f_hash(mrb_state *mrb, mrb_value self)
mzta 0:158c61bb030f 148 {
mzta 0:158c61bb030f 149 mrb_value arg, tmp;
mzta 0:158c61bb030f 150
mzta 0:158c61bb030f 151 mrb_get_args(mrb, "o", &arg);
mzta 0:158c61bb030f 152 if (mrb_nil_p(arg)) {
mzta 0:158c61bb030f 153 return mrb_hash_new(mrb);
mzta 0:158c61bb030f 154 }
mzta 0:158c61bb030f 155 tmp = mrb_check_convert_type(mrb, arg, MRB_TT_HASH, "Hash", "to_hash");
mzta 0:158c61bb030f 156 if (mrb_nil_p(tmp)) {
mzta 0:158c61bb030f 157 if (mrb_array_p(arg) && RARRAY_LEN(arg) == 0) {
mzta 0:158c61bb030f 158 return mrb_hash_new(mrb);
mzta 0:158c61bb030f 159 }
mzta 0:158c61bb030f 160 mrb_raisef(mrb, E_TYPE_ERROR, "can't convert %S into Hash",
mzta 0:158c61bb030f 161 mrb_str_new_cstr(mrb, mrb_obj_classname(mrb, arg)));
mzta 0:158c61bb030f 162 }
mzta 0:158c61bb030f 163 return tmp;
mzta 0:158c61bb030f 164 }
mzta 0:158c61bb030f 165
mzta 0:158c61bb030f 166 void
mzta 0:158c61bb030f 167 mrb_mruby_kernel_ext_gem_init(mrb_state *mrb)
mzta 0:158c61bb030f 168 {
mzta 0:158c61bb030f 169 struct RClass *krn = mrb->kernel_module;
mzta 0:158c61bb030f 170
mzta 0:158c61bb030f 171 mrb_define_module_function(mrb, krn, "fail", mrb_f_raise, MRB_ARGS_OPT(2));
mzta 0:158c61bb030f 172 mrb_define_method(mrb, krn, "__method__", mrb_f_method, MRB_ARGS_NONE());
mzta 0:158c61bb030f 173 mrb_define_module_function(mrb, krn, "Integer", mrb_f_integer, MRB_ARGS_ANY());
mzta 0:158c61bb030f 174 mrb_define_module_function(mrb, krn, "Float", mrb_f_float, MRB_ARGS_REQ(1));
mzta 0:158c61bb030f 175 mrb_define_module_function(mrb, krn, "String", mrb_f_string, MRB_ARGS_REQ(1));
mzta 0:158c61bb030f 176 mrb_define_module_function(mrb, krn, "Array", mrb_f_array, MRB_ARGS_REQ(1));
mzta 0:158c61bb030f 177 mrb_define_module_function(mrb, krn, "Hash", mrb_f_hash, MRB_ARGS_REQ(1));
mzta 0:158c61bb030f 178 }
mzta 0:158c61bb030f 179
mzta 0:158c61bb030f 180 void
mzta 0:158c61bb030f 181 mrb_mruby_kernel_ext_gem_final(mrb_state *mrb)
mzta 0:158c61bb030f 182 {
mzta 0:158c61bb030f 183 }
mzta 0:158c61bb030f 184