1 | /*
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2 | ** kernel.c - Kernel module
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3 | **
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4 | ** See Copyright Notice in mruby.h
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5 | */
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6 |
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7 | #include <mruby.h>
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8 | #include <mruby/array.h>
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9 | #include <mruby/hash.h>
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10 | #include <mruby/class.h>
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11 | #include <mruby/proc.h>
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12 | #include <mruby/string.h>
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13 | #include <mruby/variable.h>
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14 | #include <mruby/error.h>
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15 | #include <mruby/istruct.h>
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16 |
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17 | typedef enum {
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18 | NOEX_PUBLIC = 0x00,
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19 | NOEX_NOSUPER = 0x01,
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20 | NOEX_PRIVATE = 0x02,
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21 | NOEX_PROTECTED = 0x04,
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22 | NOEX_MASK = 0x06,
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23 | NOEX_BASIC = 0x08,
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24 | NOEX_UNDEF = NOEX_NOSUPER,
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25 | NOEX_MODFUNC = 0x12,
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26 | NOEX_SUPER = 0x20,
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27 | NOEX_VCALL = 0x40,
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28 | NOEX_RESPONDS = 0x80
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29 | } mrb_method_flag_t;
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30 |
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31 | MRB_API mrb_bool
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32 | mrb_func_basic_p(mrb_state *mrb, mrb_value obj, mrb_sym mid, mrb_func_t func)
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33 | {
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34 | struct RProc *me = mrb_method_search(mrb, mrb_class(mrb, obj), mid);
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35 | if (MRB_PROC_CFUNC_P(me) && (me->body.func == func))
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36 | return TRUE;
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37 | return FALSE;
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38 | }
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39 |
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40 | static mrb_bool
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41 | mrb_obj_basic_to_s_p(mrb_state *mrb, mrb_value obj)
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42 | {
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43 | return mrb_func_basic_p(mrb, obj, mrb_intern_lit(mrb, "to_s"), mrb_any_to_s);
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44 | }
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45 |
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46 | /* 15.3.1.3.17 */
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47 | /*
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48 | * call-seq:
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49 | * obj.inspect -> string
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50 | *
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51 | * Returns a string containing a human-readable representation of
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52 | * <i>obj</i>. If not overridden and no instance variables, uses the
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53 | * <code>to_s</code> method to generate the string.
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54 | * <i>obj</i>. If not overridden, uses the <code>to_s</code> method to
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55 | * generate the string.
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56 | *
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57 | * [ 1, 2, 3..4, 'five' ].inspect #=> "[1, 2, 3..4, \"five\"]"
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58 | * Time.new.inspect #=> "2008-03-08 19:43:39 +0900"
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59 | */
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60 | MRB_API mrb_value
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61 | mrb_obj_inspect(mrb_state *mrb, mrb_value obj)
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62 | {
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63 | if ((mrb_type(obj) == MRB_TT_OBJECT) && mrb_obj_basic_to_s_p(mrb, obj)) {
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64 | return mrb_obj_iv_inspect(mrb, mrb_obj_ptr(obj));
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65 | }
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66 | return mrb_any_to_s(mrb, obj);
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67 | }
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68 |
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69 | /* 15.3.1.3.2 */
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70 | /*
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71 | * call-seq:
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72 | * obj === other -> true or false
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73 | *
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74 | * Case Equality---For class <code>Object</code>, effectively the same
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75 | * as calling <code>#==</code>, but typically overridden by descendants
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76 | * to provide meaningful semantics in <code>case</code> statements.
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77 | */
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78 | static mrb_value
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79 | mrb_equal_m(mrb_state *mrb, mrb_value self)
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80 | {
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81 | mrb_value arg;
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82 |
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83 | mrb_get_args(mrb, "o", &arg);
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84 | return mrb_bool_value(mrb_equal(mrb, self, arg));
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85 | }
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86 |
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87 | /* 15.3.1.3.3 */
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88 | /* 15.3.1.3.33 */
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89 | /*
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90 | * Document-method: __id__
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91 | * Document-method: object_id
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92 | *
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93 | * call-seq:
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94 | * obj.__id__ -> fixnum
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95 | * obj.object_id -> fixnum
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96 | *
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97 | * Returns an integer identifier for <i>obj</i>. The same number will
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98 | * be returned on all calls to <code>id</code> for a given object, and
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99 | * no two active objects will share an id.
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100 | * <code>Object#object_id</code> is a different concept from the
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101 | * <code>:name</code> notation, which returns the symbol id of
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102 | * <code>name</code>. Replaces the deprecated <code>Object#id</code>.
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103 | */
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104 | mrb_value
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105 | mrb_obj_id_m(mrb_state *mrb, mrb_value self)
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106 | {
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107 | return mrb_fixnum_value(mrb_obj_id(self));
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108 | }
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109 |
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110 | /* 15.3.1.2.2 */
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111 | /* 15.3.1.2.5 */
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112 | /* 15.3.1.3.6 */
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113 | /* 15.3.1.3.25 */
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114 | /*
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115 | * call-seq:
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116 | * block_given? -> true or false
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117 | * iterator? -> true or false
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118 | *
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119 | * Returns <code>true</code> if <code>yield</code> would execute a
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120 | * block in the current context. The <code>iterator?</code> form
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121 | * is mildly deprecated.
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122 | *
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123 | * def try
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124 | * if block_given?
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125 | * yield
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126 | * else
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127 | * "no block"
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128 | * end
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129 | * end
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130 | * try #=> "no block"
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131 | * try { "hello" } #=> "hello"
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132 | * try do "hello" end #=> "hello"
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133 | */
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134 | static mrb_value
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135 | mrb_f_block_given_p_m(mrb_state *mrb, mrb_value self)
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136 | {
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137 | mrb_callinfo *ci = mrb->c->ci;
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138 | mrb_value *bp;
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139 |
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140 | bp = ci->stackent + 1;
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141 | ci--;
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142 | if (ci <= mrb->c->cibase) {
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143 | return mrb_false_value();
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144 | }
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145 | /* block_given? called within block; check upper scope */
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146 | if (ci->proc->env) {
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147 | struct REnv *e = ci->proc->env;
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148 |
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149 | while (e->c) {
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150 | e = (struct REnv*)e->c;
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151 | }
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152 | /* top-level does not have block slot (always false) */
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153 | if (e->stack == mrb->c->stbase)
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154 | return mrb_false_value();
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155 | if (e->stack && e->cioff < 0) {
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156 | /* use saved block arg position */
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157 | bp = &e->stack[-e->cioff];
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158 | ci = 0; /* no callinfo available */
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159 | }
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160 | else {
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161 | ci = e->cxt.c->cibase + e->cioff;
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162 | bp = ci[1].stackent + 1;
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163 | }
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164 | }
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165 | if (ci && ci->argc > 0) {
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166 | bp += ci->argc;
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167 | }
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168 | if (mrb_nil_p(*bp))
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169 | return mrb_false_value();
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170 | return mrb_true_value();
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171 | }
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172 |
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173 | /* 15.3.1.3.7 */
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174 | /*
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175 | * call-seq:
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176 | * obj.class -> class
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177 | *
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178 | * Returns the class of <i>obj</i>. This method must always be
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179 | * called with an explicit receiver, as <code>class</code> is also a
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180 | * reserved word in Ruby.
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181 | *
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182 | * 1.class #=> Fixnum
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183 | * self.class #=> Object
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184 | */
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185 | static mrb_value
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186 | mrb_obj_class_m(mrb_state *mrb, mrb_value self)
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187 | {
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188 | return mrb_obj_value(mrb_obj_class(mrb, self));
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189 | }
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190 |
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191 | static struct RClass*
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192 | mrb_singleton_class_clone(mrb_state *mrb, mrb_value obj)
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193 | {
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194 | struct RClass *klass = mrb_basic_ptr(obj)->c;
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195 |
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196 | if (klass->tt != MRB_TT_SCLASS)
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197 | return klass;
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198 | else {
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199 | /* copy singleton(unnamed) class */
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200 | struct RClass *clone = (struct RClass*)mrb_obj_alloc(mrb, klass->tt, mrb->class_class);
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201 |
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202 | switch (mrb_type(obj)) {
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203 | case MRB_TT_CLASS:
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204 | case MRB_TT_SCLASS:
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205 | break;
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206 | default:
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207 | clone->c = mrb_singleton_class_clone(mrb, mrb_obj_value(klass));
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208 | break;
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209 | }
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210 | clone->super = klass->super;
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211 | if (klass->iv) {
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212 | mrb_iv_copy(mrb, mrb_obj_value(clone), mrb_obj_value(klass));
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213 | mrb_obj_iv_set(mrb, (struct RObject*)clone, mrb_intern_lit(mrb, "__attached__"), obj);
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214 | }
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215 | if (klass->mt) {
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216 | clone->mt = kh_copy(mt, mrb, klass->mt);
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217 | }
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218 | else {
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219 | clone->mt = kh_init(mt, mrb);
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220 | }
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221 | clone->tt = MRB_TT_SCLASS;
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222 | return clone;
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223 | }
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224 | }
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225 |
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226 | static void
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227 | copy_class(mrb_state *mrb, mrb_value dst, mrb_value src)
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228 | {
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229 | struct RClass *dc = mrb_class_ptr(dst);
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230 | struct RClass *sc = mrb_class_ptr(src);
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231 | /* if the origin is not the same as the class, then the origin and
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232 | the current class need to be copied */
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233 | if (sc->flags & MRB_FLAG_IS_PREPENDED) {
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234 | struct RClass *c0 = sc->super;
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235 | struct RClass *c1 = dc;
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236 |
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237 | /* copy prepended iclasses */
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238 | while (!(c0->flags & MRB_FLAG_IS_ORIGIN)) {
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239 | c1->super = mrb_class_ptr(mrb_obj_dup(mrb, mrb_obj_value(c0)));
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240 | c1 = c1->super;
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241 | c0 = c0->super;
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242 | }
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243 | c1->super = mrb_class_ptr(mrb_obj_dup(mrb, mrb_obj_value(c0)));
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244 | c1->super->flags |= MRB_FLAG_IS_ORIGIN;
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245 | }
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246 | if (sc->mt) {
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247 | dc->mt = kh_copy(mt, mrb, sc->mt);
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248 | }
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249 | else {
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250 | dc->mt = kh_init(mt, mrb);
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251 | }
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252 | dc->super = sc->super;
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253 | MRB_SET_INSTANCE_TT(dc, MRB_INSTANCE_TT(sc));
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254 | }
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255 |
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256 | static void
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257 | init_copy(mrb_state *mrb, mrb_value dest, mrb_value obj)
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258 | {
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259 | switch (mrb_type(obj)) {
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260 | case MRB_TT_CLASS:
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261 | case MRB_TT_MODULE:
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262 | copy_class(mrb, dest, obj);
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263 | /* fall through */
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264 | case MRB_TT_OBJECT:
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265 | case MRB_TT_SCLASS:
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266 | case MRB_TT_HASH:
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267 | case MRB_TT_DATA:
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268 | case MRB_TT_EXCEPTION:
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269 | mrb_iv_copy(mrb, dest, obj);
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270 | break;
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271 | case MRB_TT_ISTRUCT:
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272 | mrb_istruct_copy(dest, obj);
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273 | break;
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274 |
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275 | default:
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276 | break;
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277 | }
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278 | mrb_funcall(mrb, dest, "initialize_copy", 1, obj);
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279 | }
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280 |
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281 | /* 15.3.1.3.8 */
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282 | /*
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283 | * call-seq:
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284 | * obj.clone -> an_object
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285 | *
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286 | * Produces a shallow copy of <i>obj</i>---the instance variables of
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287 | * <i>obj</i> are copied, but not the objects they reference. Copies
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288 | * the frozen state of <i>obj</i>. See also the discussion
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289 | * under <code>Object#dup</code>.
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290 | *
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291 | * class Klass
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292 | * attr_accessor :str
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293 | * end
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294 | * s1 = Klass.new #=> #<Klass:0x401b3a38>
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295 | * s1.str = "Hello" #=> "Hello"
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296 | * s2 = s1.clone #=> #<Klass:0x401b3998 @str="Hello">
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297 | * s2.str[1,4] = "i" #=> "i"
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298 | * s1.inspect #=> "#<Klass:0x401b3a38 @str=\"Hi\">"
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299 | * s2.inspect #=> "#<Klass:0x401b3998 @str=\"Hi\">"
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300 | *
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301 | * This method may have class-specific behavior. If so, that
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302 | * behavior will be documented under the #+initialize_copy+ method of
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303 | * the class.
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304 | *
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305 | * Some Class(True False Nil Symbol Fixnum Float) Object cannot clone.
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306 | */
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307 | MRB_API mrb_value
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308 | mrb_obj_clone(mrb_state *mrb, mrb_value self)
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309 | {
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310 | struct RObject *p;
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311 | mrb_value clone;
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312 |
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313 | if (mrb_immediate_p(self)) {
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314 | mrb_raisef(mrb, E_TYPE_ERROR, "can't clone %S", self);
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315 | }
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316 | if (mrb_type(self) == MRB_TT_SCLASS) {
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317 | mrb_raise(mrb, E_TYPE_ERROR, "can't clone singleton class");
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318 | }
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319 | p = (struct RObject*)mrb_obj_alloc(mrb, mrb_type(self), mrb_obj_class(mrb, self));
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320 | p->c = mrb_singleton_class_clone(mrb, self);
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321 | clone = mrb_obj_value(p);
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322 | init_copy(mrb, clone, self);
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323 |
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324 | return clone;
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325 | }
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326 |
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327 | /* 15.3.1.3.9 */
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328 | /*
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329 | * call-seq:
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330 | * obj.dup -> an_object
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331 | *
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332 | * Produces a shallow copy of <i>obj</i>---the instance variables of
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333 | * <i>obj</i> are copied, but not the objects they reference.
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334 | * <code>dup</code> copies the frozen state of <i>obj</i>. See also
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335 | * the discussion under <code>Object#clone</code>. In general,
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336 | * <code>clone</code> and <code>dup</code> may have different semantics
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337 | * in descendant classes. While <code>clone</code> is used to duplicate
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338 | * an object, including its internal state, <code>dup</code> typically
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339 | * uses the class of the descendant object to create the new instance.
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340 | *
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341 | * This method may have class-specific behavior. If so, that
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342 | * behavior will be documented under the #+initialize_copy+ method of
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343 | * the class.
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344 | */
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345 |
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346 | MRB_API mrb_value
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347 | mrb_obj_dup(mrb_state *mrb, mrb_value obj)
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348 | {
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349 | struct RBasic *p;
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350 | mrb_value dup;
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351 |
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352 | if (mrb_immediate_p(obj)) {
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353 | mrb_raisef(mrb, E_TYPE_ERROR, "can't dup %S", obj);
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354 | }
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355 | if (mrb_type(obj) == MRB_TT_SCLASS) {
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356 | mrb_raise(mrb, E_TYPE_ERROR, "can't dup singleton class");
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357 | }
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358 | p = mrb_obj_alloc(mrb, mrb_type(obj), mrb_obj_class(mrb, obj));
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359 | dup = mrb_obj_value(p);
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360 | init_copy(mrb, dup, obj);
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361 |
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362 | return dup;
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363 | }
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364 |
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365 | static mrb_value
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366 | mrb_obj_extend(mrb_state *mrb, mrb_int argc, mrb_value *argv, mrb_value obj)
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367 | {
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368 | mrb_int i;
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369 |
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370 | if (argc == 0) {
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371 | mrb_raise(mrb, E_ARGUMENT_ERROR, "wrong number of arguments (at least 1)");
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372 | }
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373 | for (i = 0; i < argc; i++) {
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374 | mrb_check_type(mrb, argv[i], MRB_TT_MODULE);
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375 | }
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376 | while (argc--) {
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377 | mrb_funcall(mrb, argv[argc], "extend_object", 1, obj);
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378 | mrb_funcall(mrb, argv[argc], "extended", 1, obj);
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379 | }
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380 | return obj;
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381 | }
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382 |
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383 | /* 15.3.1.3.13 */
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384 | /*
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385 | * call-seq:
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386 | * obj.extend(module, ...) -> obj
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387 | *
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388 | * Adds to _obj_ the instance methods from each module given as a
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389 | * parameter.
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390 | *
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391 | * module Mod
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392 | * def hello
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393 | * "Hello from Mod.\n"
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394 | * end
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395 | * end
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396 | *
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397 | * class Klass
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398 | * def hello
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399 | * "Hello from Klass.\n"
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400 | * end
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401 | * end
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402 | *
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403 | * k = Klass.new
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404 | * k.hello #=> "Hello from Klass.\n"
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405 | * k.extend(Mod) #=> #<Klass:0x401b3bc8>
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406 | * k.hello #=> "Hello from Mod.\n"
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407 | */
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408 | static mrb_value
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409 | mrb_obj_extend_m(mrb_state *mrb, mrb_value self)
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410 | {
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411 | mrb_value *argv;
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412 | mrb_int argc;
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413 | mrb_value args;
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414 |
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415 | mrb_get_args(mrb, "*", &argv, &argc);
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416 | args = mrb_ary_new_from_values(mrb, argc, argv);
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417 | argv = (mrb_value*)RARRAY_PTR(args);
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418 | return mrb_obj_extend(mrb, argc, argv, self);
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419 | }
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420 |
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421 | static mrb_value
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422 | mrb_obj_freeze(mrb_state *mrb, mrb_value self)
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423 | {
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424 | struct RBasic *b;
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425 |
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426 | switch (mrb_type(self)) {
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427 | case MRB_TT_FALSE:
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428 | case MRB_TT_TRUE:
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429 | case MRB_TT_FIXNUM:
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430 | case MRB_TT_SYMBOL:
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431 | case MRB_TT_FLOAT:
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432 | return self;
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433 | default:
|
---|
434 | break;
|
---|
435 | }
|
---|
436 |
|
---|
437 | b = mrb_basic_ptr(self);
|
---|
438 | if (!MRB_FROZEN_P(b)) {
|
---|
439 | MRB_SET_FROZEN_FLAG(b);
|
---|
440 | }
|
---|
441 | return self;
|
---|
442 | }
|
---|
443 |
|
---|
444 | static mrb_value
|
---|
445 | mrb_obj_frozen(mrb_state *mrb, mrb_value self)
|
---|
446 | {
|
---|
447 | struct RBasic *b;
|
---|
448 |
|
---|
449 | switch (mrb_type(self)) {
|
---|
450 | case MRB_TT_FALSE:
|
---|
451 | case MRB_TT_TRUE:
|
---|
452 | case MRB_TT_FIXNUM:
|
---|
453 | case MRB_TT_SYMBOL:
|
---|
454 | case MRB_TT_FLOAT:
|
---|
455 | return mrb_true_value();
|
---|
456 | default:
|
---|
457 | break;
|
---|
458 | }
|
---|
459 |
|
---|
460 | b = mrb_basic_ptr(self);
|
---|
461 | if (!MRB_FROZEN_P(b)) {
|
---|
462 | return mrb_false_value();
|
---|
463 | }
|
---|
464 | return mrb_true_value();
|
---|
465 | }
|
---|
466 |
|
---|
467 | /* 15.3.1.3.15 */
|
---|
468 | /*
|
---|
469 | * call-seq:
|
---|
470 | * obj.hash -> fixnum
|
---|
471 | *
|
---|
472 | * Generates a <code>Fixnum</code> hash value for this object. This
|
---|
473 | * function must have the property that <code>a.eql?(b)</code> implies
|
---|
474 | * <code>a.hash == b.hash</code>. The hash value is used by class
|
---|
475 | * <code>Hash</code>. Any hash value that exceeds the capacity of a
|
---|
476 | * <code>Fixnum</code> will be truncated before being used.
|
---|
477 | */
|
---|
478 | MRB_API mrb_value
|
---|
479 | mrb_obj_hash(mrb_state *mrb, mrb_value self)
|
---|
480 | {
|
---|
481 | return mrb_fixnum_value(mrb_obj_id(self));
|
---|
482 | }
|
---|
483 |
|
---|
484 | /* 15.3.1.3.16 */
|
---|
485 | static mrb_value
|
---|
486 | mrb_obj_init_copy(mrb_state *mrb, mrb_value self)
|
---|
487 | {
|
---|
488 | mrb_value orig;
|
---|
489 |
|
---|
490 | mrb_get_args(mrb, "o", &orig);
|
---|
491 | if (mrb_obj_equal(mrb, self, orig)) return self;
|
---|
492 | if ((mrb_type(self) != mrb_type(orig)) || (mrb_obj_class(mrb, self) != mrb_obj_class(mrb, orig))) {
|
---|
493 | mrb_raise(mrb, E_TYPE_ERROR, "initialize_copy should take same class object");
|
---|
494 | }
|
---|
495 | return self;
|
---|
496 | }
|
---|
497 |
|
---|
498 |
|
---|
499 | MRB_API mrb_bool
|
---|
500 | mrb_obj_is_instance_of(mrb_state *mrb, mrb_value obj, struct RClass* c)
|
---|
501 | {
|
---|
502 | if (mrb_obj_class(mrb, obj) == c) return TRUE;
|
---|
503 | return FALSE;
|
---|
504 | }
|
---|
505 |
|
---|
506 | /* 15.3.1.3.19 */
|
---|
507 | /*
|
---|
508 | * call-seq:
|
---|
509 | * obj.instance_of?(class) -> true or false
|
---|
510 | *
|
---|
511 | * Returns <code>true</code> if <i>obj</i> is an instance of the given
|
---|
512 | * class. See also <code>Object#kind_of?</code>.
|
---|
513 | */
|
---|
514 | static mrb_value
|
---|
515 | obj_is_instance_of(mrb_state *mrb, mrb_value self)
|
---|
516 | {
|
---|
517 | mrb_value arg;
|
---|
518 |
|
---|
519 | mrb_get_args(mrb, "C", &arg);
|
---|
520 |
|
---|
521 | return mrb_bool_value(mrb_obj_is_instance_of(mrb, self, mrb_class_ptr(arg)));
|
---|
522 | }
|
---|
523 |
|
---|
524 | /* 15.3.1.3.20 */
|
---|
525 | /*
|
---|
526 | * call-seq:
|
---|
527 | * obj.instance_variable_defined?(symbol) -> true or false
|
---|
528 | *
|
---|
529 | * Returns <code>true</code> if the given instance variable is
|
---|
530 | * defined in <i>obj</i>.
|
---|
531 | *
|
---|
532 | * class Fred
|
---|
533 | * def initialize(p1, p2)
|
---|
534 | * @a, @b = p1, p2
|
---|
535 | * end
|
---|
536 | * end
|
---|
537 | * fred = Fred.new('cat', 99)
|
---|
538 | * fred.instance_variable_defined?(:@a) #=> true
|
---|
539 | * fred.instance_variable_defined?("@b") #=> true
|
---|
540 | * fred.instance_variable_defined?("@c") #=> false
|
---|
541 | */
|
---|
542 | static mrb_value
|
---|
543 | mrb_obj_ivar_defined(mrb_state *mrb, mrb_value self)
|
---|
544 | {
|
---|
545 | mrb_sym sym;
|
---|
546 |
|
---|
547 | mrb_get_args(mrb, "n", &sym);
|
---|
548 | mrb_iv_check(mrb, sym);
|
---|
549 | return mrb_bool_value(mrb_iv_defined(mrb, self, sym));
|
---|
550 | }
|
---|
551 |
|
---|
552 | /* 15.3.1.3.21 */
|
---|
553 | /*
|
---|
554 | * call-seq:
|
---|
555 | * obj.instance_variable_get(symbol) -> obj
|
---|
556 | *
|
---|
557 | * Returns the value of the given instance variable, or nil if the
|
---|
558 | * instance variable is not set. The <code>@</code> part of the
|
---|
559 | * variable name should be included for regular instance
|
---|
560 | * variables. Throws a <code>NameError</code> exception if the
|
---|
561 | * supplied symbol is not valid as an instance variable name.
|
---|
562 | *
|
---|
563 | * class Fred
|
---|
564 | * def initialize(p1, p2)
|
---|
565 | * @a, @b = p1, p2
|
---|
566 | * end
|
---|
567 | * end
|
---|
568 | * fred = Fred.new('cat', 99)
|
---|
569 | * fred.instance_variable_get(:@a) #=> "cat"
|
---|
570 | * fred.instance_variable_get("@b") #=> 99
|
---|
571 | */
|
---|
572 | static mrb_value
|
---|
573 | mrb_obj_ivar_get(mrb_state *mrb, mrb_value self)
|
---|
574 | {
|
---|
575 | mrb_sym iv_name;
|
---|
576 |
|
---|
577 | mrb_get_args(mrb, "n", &iv_name);
|
---|
578 | mrb_iv_check(mrb, iv_name);
|
---|
579 | return mrb_iv_get(mrb, self, iv_name);
|
---|
580 | }
|
---|
581 |
|
---|
582 | /* 15.3.1.3.22 */
|
---|
583 | /*
|
---|
584 | * call-seq:
|
---|
585 | * obj.instance_variable_set(symbol, obj) -> obj
|
---|
586 | *
|
---|
587 | * Sets the instance variable names by <i>symbol</i> to
|
---|
588 | * <i>object</i>, thereby frustrating the efforts of the class's
|
---|
589 | * author to attempt to provide proper encapsulation. The variable
|
---|
590 | * did not have to exist prior to this call.
|
---|
591 | *
|
---|
592 | * class Fred
|
---|
593 | * def initialize(p1, p2)
|
---|
594 | * @a, @b = p1, p2
|
---|
595 | * end
|
---|
596 | * end
|
---|
597 | * fred = Fred.new('cat', 99)
|
---|
598 | * fred.instance_variable_set(:@a, 'dog') #=> "dog"
|
---|
599 | * fred.instance_variable_set(:@c, 'cat') #=> "cat"
|
---|
600 | * fred.inspect #=> "#<Fred:0x401b3da8 @a=\"dog\", @b=99, @c=\"cat\">"
|
---|
601 | */
|
---|
602 | static mrb_value
|
---|
603 | mrb_obj_ivar_set(mrb_state *mrb, mrb_value self)
|
---|
604 | {
|
---|
605 | mrb_sym iv_name;
|
---|
606 | mrb_value val;
|
---|
607 |
|
---|
608 | mrb_get_args(mrb, "no", &iv_name, &val);
|
---|
609 | mrb_iv_check(mrb, iv_name);
|
---|
610 | mrb_iv_set(mrb, self, iv_name, val);
|
---|
611 | return val;
|
---|
612 | }
|
---|
613 |
|
---|
614 | /* 15.3.1.3.24 */
|
---|
615 | /* 15.3.1.3.26 */
|
---|
616 | /*
|
---|
617 | * call-seq:
|
---|
618 | * obj.is_a?(class) -> true or false
|
---|
619 | * obj.kind_of?(class) -> true or false
|
---|
620 | *
|
---|
621 | * Returns <code>true</code> if <i>class</i> is the class of
|
---|
622 | * <i>obj</i>, or if <i>class</i> is one of the superclasses of
|
---|
623 | * <i>obj</i> or modules included in <i>obj</i>.
|
---|
624 | *
|
---|
625 | * module M; end
|
---|
626 | * class A
|
---|
627 | * include M
|
---|
628 | * end
|
---|
629 | * class B < A; end
|
---|
630 | * class C < B; end
|
---|
631 | * b = B.new
|
---|
632 | * b.instance_of? A #=> false
|
---|
633 | * b.instance_of? B #=> true
|
---|
634 | * b.instance_of? C #=> false
|
---|
635 | * b.instance_of? M #=> false
|
---|
636 | * b.kind_of? A #=> true
|
---|
637 | * b.kind_of? B #=> true
|
---|
638 | * b.kind_of? C #=> false
|
---|
639 | * b.kind_of? M #=> true
|
---|
640 | */
|
---|
641 | static mrb_value
|
---|
642 | mrb_obj_is_kind_of_m(mrb_state *mrb, mrb_value self)
|
---|
643 | {
|
---|
644 | mrb_value arg;
|
---|
645 |
|
---|
646 | mrb_get_args(mrb, "C", &arg);
|
---|
647 |
|
---|
648 | return mrb_bool_value(mrb_obj_is_kind_of(mrb, self, mrb_class_ptr(arg)));
|
---|
649 | }
|
---|
650 |
|
---|
651 | KHASH_DECLARE(st, mrb_sym, char, FALSE)
|
---|
652 | KHASH_DEFINE(st, mrb_sym, char, FALSE, kh_int_hash_func, kh_int_hash_equal)
|
---|
653 |
|
---|
654 | static void
|
---|
655 | method_entry_loop(mrb_state *mrb, struct RClass* klass, khash_t(st)* set)
|
---|
656 | {
|
---|
657 | khint_t i;
|
---|
658 |
|
---|
659 | khash_t(mt) *h = klass->mt;
|
---|
660 | if (!h) return;
|
---|
661 | for (i=0;i<kh_end(h);i++) {
|
---|
662 | if (kh_exist(h, i) && kh_value(h, i)) {
|
---|
663 | kh_put(st, mrb, set, kh_key(h, i));
|
---|
664 | }
|
---|
665 | }
|
---|
666 | }
|
---|
667 |
|
---|
668 | mrb_value
|
---|
669 | mrb_class_instance_method_list(mrb_state *mrb, mrb_bool recur, struct RClass* klass, int obj)
|
---|
670 | {
|
---|
671 | khint_t i;
|
---|
672 | mrb_value ary;
|
---|
673 | mrb_bool prepended = FALSE;
|
---|
674 | struct RClass* oldklass;
|
---|
675 | khash_t(st)* set = kh_init(st, mrb);
|
---|
676 |
|
---|
677 | if (!recur && (klass->flags & MRB_FLAG_IS_PREPENDED)) {
|
---|
678 | MRB_CLASS_ORIGIN(klass);
|
---|
679 | prepended = TRUE;
|
---|
680 | }
|
---|
681 |
|
---|
682 | oldklass = 0;
|
---|
683 | while (klass && (klass != oldklass)) {
|
---|
684 | method_entry_loop(mrb, klass, set);
|
---|
685 | if ((klass->tt == MRB_TT_ICLASS && !prepended) ||
|
---|
686 | (klass->tt == MRB_TT_SCLASS)) {
|
---|
687 | }
|
---|
688 | else {
|
---|
689 | if (!recur) break;
|
---|
690 | }
|
---|
691 | oldklass = klass;
|
---|
692 | klass = klass->super;
|
---|
693 | }
|
---|
694 |
|
---|
695 | ary = mrb_ary_new(mrb);
|
---|
696 | for (i=0;i<kh_end(set);i++) {
|
---|
697 | if (kh_exist(set, i)) {
|
---|
698 | mrb_ary_push(mrb, ary, mrb_symbol_value(kh_key(set, i)));
|
---|
699 | }
|
---|
700 | }
|
---|
701 | kh_destroy(st, mrb, set);
|
---|
702 |
|
---|
703 | return ary;
|
---|
704 | }
|
---|
705 |
|
---|
706 | static mrb_value
|
---|
707 | mrb_obj_singleton_methods(mrb_state *mrb, mrb_bool recur, mrb_value obj)
|
---|
708 | {
|
---|
709 | khint_t i;
|
---|
710 | mrb_value ary;
|
---|
711 | struct RClass* klass;
|
---|
712 | khash_t(st)* set = kh_init(st, mrb);
|
---|
713 |
|
---|
714 | klass = mrb_class(mrb, obj);
|
---|
715 |
|
---|
716 | if (klass && (klass->tt == MRB_TT_SCLASS)) {
|
---|
717 | method_entry_loop(mrb, klass, set);
|
---|
718 | klass = klass->super;
|
---|
719 | }
|
---|
720 | if (recur) {
|
---|
721 | while (klass && ((klass->tt == MRB_TT_SCLASS) || (klass->tt == MRB_TT_ICLASS))) {
|
---|
722 | method_entry_loop(mrb, klass, set);
|
---|
723 | klass = klass->super;
|
---|
724 | }
|
---|
725 | }
|
---|
726 |
|
---|
727 | ary = mrb_ary_new(mrb);
|
---|
728 | for (i=0;i<kh_end(set);i++) {
|
---|
729 | if (kh_exist(set, i)) {
|
---|
730 | mrb_ary_push(mrb, ary, mrb_symbol_value(kh_key(set, i)));
|
---|
731 | }
|
---|
732 | }
|
---|
733 | kh_destroy(st, mrb, set);
|
---|
734 |
|
---|
735 | return ary;
|
---|
736 | }
|
---|
737 |
|
---|
738 | static mrb_value
|
---|
739 | mrb_obj_methods(mrb_state *mrb, mrb_bool recur, mrb_value obj, mrb_method_flag_t flag)
|
---|
740 | {
|
---|
741 | return mrb_class_instance_method_list(mrb, recur, mrb_class(mrb, obj), 0);
|
---|
742 | }
|
---|
743 | /* 15.3.1.3.31 */
|
---|
744 | /*
|
---|
745 | * call-seq:
|
---|
746 | * obj.methods -> array
|
---|
747 | *
|
---|
748 | * Returns a list of the names of methods publicly accessible in
|
---|
749 | * <i>obj</i>. This will include all the methods accessible in
|
---|
750 | * <i>obj</i>'s ancestors.
|
---|
751 | *
|
---|
752 | * class Klass
|
---|
753 | * def kMethod()
|
---|
754 | * end
|
---|
755 | * end
|
---|
756 | * k = Klass.new
|
---|
757 | * k.methods[0..9] #=> [:kMethod, :respond_to?, :nil?, :is_a?,
|
---|
758 | * # :class, :instance_variable_set,
|
---|
759 | * # :methods, :extend, :__send__, :instance_eval]
|
---|
760 | * k.methods.length #=> 42
|
---|
761 | */
|
---|
762 | static mrb_value
|
---|
763 | mrb_obj_methods_m(mrb_state *mrb, mrb_value self)
|
---|
764 | {
|
---|
765 | mrb_bool recur = TRUE;
|
---|
766 | mrb_get_args(mrb, "|b", &recur);
|
---|
767 | return mrb_obj_methods(mrb, recur, self, (mrb_method_flag_t)0); /* everything but private */
|
---|
768 | }
|
---|
769 |
|
---|
770 | /* 15.3.1.3.32 */
|
---|
771 | /*
|
---|
772 | * call_seq:
|
---|
773 | * nil.nil? -> true
|
---|
774 | * <anything_else>.nil? -> false
|
---|
775 | *
|
---|
776 | * Only the object <i>nil</i> responds <code>true</code> to <code>nil?</code>.
|
---|
777 | */
|
---|
778 | static mrb_value
|
---|
779 | mrb_false(mrb_state *mrb, mrb_value self)
|
---|
780 | {
|
---|
781 | return mrb_false_value();
|
---|
782 | }
|
---|
783 |
|
---|
784 | /* 15.3.1.3.36 */
|
---|
785 | /*
|
---|
786 | * call-seq:
|
---|
787 | * obj.private_methods(all=true) -> array
|
---|
788 | *
|
---|
789 | * Returns the list of private methods accessible to <i>obj</i>. If
|
---|
790 | * the <i>all</i> parameter is set to <code>false</code>, only those methods
|
---|
791 | * in the receiver will be listed.
|
---|
792 | */
|
---|
793 | static mrb_value
|
---|
794 | mrb_obj_private_methods(mrb_state *mrb, mrb_value self)
|
---|
795 | {
|
---|
796 | mrb_bool recur = TRUE;
|
---|
797 | mrb_get_args(mrb, "|b", &recur);
|
---|
798 | return mrb_obj_methods(mrb, recur, self, NOEX_PRIVATE); /* private attribute not define */
|
---|
799 | }
|
---|
800 |
|
---|
801 | /* 15.3.1.3.37 */
|
---|
802 | /*
|
---|
803 | * call-seq:
|
---|
804 | * obj.protected_methods(all=true) -> array
|
---|
805 | *
|
---|
806 | * Returns the list of protected methods accessible to <i>obj</i>. If
|
---|
807 | * the <i>all</i> parameter is set to <code>false</code>, only those methods
|
---|
808 | * in the receiver will be listed.
|
---|
809 | */
|
---|
810 | static mrb_value
|
---|
811 | mrb_obj_protected_methods(mrb_state *mrb, mrb_value self)
|
---|
812 | {
|
---|
813 | mrb_bool recur = TRUE;
|
---|
814 | mrb_get_args(mrb, "|b", &recur);
|
---|
815 | return mrb_obj_methods(mrb, recur, self, NOEX_PROTECTED); /* protected attribute not define */
|
---|
816 | }
|
---|
817 |
|
---|
818 | /* 15.3.1.3.38 */
|
---|
819 | /*
|
---|
820 | * call-seq:
|
---|
821 | * obj.public_methods(all=true) -> array
|
---|
822 | *
|
---|
823 | * Returns the list of public methods accessible to <i>obj</i>. If
|
---|
824 | * the <i>all</i> parameter is set to <code>false</code>, only those methods
|
---|
825 | * in the receiver will be listed.
|
---|
826 | */
|
---|
827 | static mrb_value
|
---|
828 | mrb_obj_public_methods(mrb_state *mrb, mrb_value self)
|
---|
829 | {
|
---|
830 | mrb_bool recur = TRUE;
|
---|
831 | mrb_get_args(mrb, "|b", &recur);
|
---|
832 | return mrb_obj_methods(mrb, recur, self, NOEX_PUBLIC); /* public attribute not define */
|
---|
833 | }
|
---|
834 |
|
---|
835 | /* 15.3.1.2.12 */
|
---|
836 | /* 15.3.1.3.40 */
|
---|
837 | /*
|
---|
838 | * call-seq:
|
---|
839 | * raise
|
---|
840 | * raise(string)
|
---|
841 | * raise(exception [, string])
|
---|
842 | *
|
---|
843 | * With no arguments, raises a <code>RuntimeError</code>
|
---|
844 | * With a single +String+ argument, raises a
|
---|
845 | * +RuntimeError+ with the string as a message. Otherwise,
|
---|
846 | * the first parameter should be the name of an +Exception+
|
---|
847 | * class (or an object that returns an +Exception+ object when sent
|
---|
848 | * an +exception+ message). The optional second parameter sets the
|
---|
849 | * message associated with the exception, and the third parameter is an
|
---|
850 | * array of callback information. Exceptions are caught by the
|
---|
851 | * +rescue+ clause of <code>begin...end</code> blocks.
|
---|
852 | *
|
---|
853 | * raise "Failed to create socket"
|
---|
854 | * raise ArgumentError, "No parameters", caller
|
---|
855 | */
|
---|
856 | MRB_API mrb_value
|
---|
857 | mrb_f_raise(mrb_state *mrb, mrb_value self)
|
---|
858 | {
|
---|
859 | mrb_value a[2], exc;
|
---|
860 | int argc;
|
---|
861 |
|
---|
862 |
|
---|
863 | argc = mrb_get_args(mrb, "|oo", &a[0], &a[1]);
|
---|
864 | switch (argc) {
|
---|
865 | case 0:
|
---|
866 | mrb_raise(mrb, E_RUNTIME_ERROR, "");
|
---|
867 | break;
|
---|
868 | case 1:
|
---|
869 | if (mrb_string_p(a[0])) {
|
---|
870 | a[1] = a[0];
|
---|
871 | argc = 2;
|
---|
872 | a[0] = mrb_obj_value(E_RUNTIME_ERROR);
|
---|
873 | }
|
---|
874 | /* fall through */
|
---|
875 | default:
|
---|
876 | exc = mrb_make_exception(mrb, argc, a);
|
---|
877 | mrb_exc_raise(mrb, exc);
|
---|
878 | break;
|
---|
879 | }
|
---|
880 | return mrb_nil_value(); /* not reached */
|
---|
881 | }
|
---|
882 |
|
---|
883 | /* 15.3.1.3.41 */
|
---|
884 | /*
|
---|
885 | * call-seq:
|
---|
886 | * obj.remove_instance_variable(symbol) -> obj
|
---|
887 | *
|
---|
888 | * Removes the named instance variable from <i>obj</i>, returning that
|
---|
889 | * variable's value.
|
---|
890 | *
|
---|
891 | * class Dummy
|
---|
892 | * attr_reader :var
|
---|
893 | * def initialize
|
---|
894 | * @var = 99
|
---|
895 | * end
|
---|
896 | * def remove
|
---|
897 | * remove_instance_variable(:@var)
|
---|
898 | * end
|
---|
899 | * end
|
---|
900 | * d = Dummy.new
|
---|
901 | * d.var #=> 99
|
---|
902 | * d.remove #=> 99
|
---|
903 | * d.var #=> nil
|
---|
904 | */
|
---|
905 | static mrb_value
|
---|
906 | mrb_obj_remove_instance_variable(mrb_state *mrb, mrb_value self)
|
---|
907 | {
|
---|
908 | mrb_sym sym;
|
---|
909 | mrb_value val;
|
---|
910 |
|
---|
911 | mrb_get_args(mrb, "n", &sym);
|
---|
912 | mrb_iv_check(mrb, sym);
|
---|
913 | val = mrb_iv_remove(mrb, self, sym);
|
---|
914 | if (mrb_undef_p(val)) {
|
---|
915 | mrb_name_error(mrb, sym, "instance variable %S not defined", mrb_sym2str(mrb, sym));
|
---|
916 | }
|
---|
917 | return val;
|
---|
918 | }
|
---|
919 |
|
---|
920 | void
|
---|
921 | mrb_method_missing(mrb_state *mrb, mrb_sym name, mrb_value self, mrb_value args)
|
---|
922 | {
|
---|
923 | mrb_sym inspect;
|
---|
924 | mrb_value repr;
|
---|
925 |
|
---|
926 | inspect = mrb_intern_lit(mrb, "inspect");
|
---|
927 | if (mrb->c->ci > mrb->c->cibase && mrb->c->ci[-1].mid == inspect) {
|
---|
928 | /* method missing in inspect; avoid recursion */
|
---|
929 | repr = mrb_any_to_s(mrb, self);
|
---|
930 | }
|
---|
931 | else if (mrb_respond_to(mrb, self, inspect) && mrb->c->ci - mrb->c->cibase < 16) {
|
---|
932 | repr = mrb_funcall_argv(mrb, self, inspect, 0, 0);
|
---|
933 | if (mrb_string_p(repr) && RSTRING_LEN(repr) > 64) {
|
---|
934 | repr = mrb_any_to_s(mrb, self);
|
---|
935 | }
|
---|
936 | }
|
---|
937 | else {
|
---|
938 | repr = mrb_any_to_s(mrb, self);
|
---|
939 | }
|
---|
940 |
|
---|
941 | mrb_no_method_error(mrb, name, args, "undefined method '%S' for %S",
|
---|
942 | mrb_sym2str(mrb, name), repr);
|
---|
943 | }
|
---|
944 |
|
---|
945 | /* 15.3.1.3.30 */
|
---|
946 | /*
|
---|
947 | * call-seq:
|
---|
948 | * obj.method_missing(symbol [, *args] ) -> result
|
---|
949 | *
|
---|
950 | * Invoked by Ruby when <i>obj</i> is sent a message it cannot handle.
|
---|
951 | * <i>symbol</i> is the symbol for the method called, and <i>args</i>
|
---|
952 | * are any arguments that were passed to it. By default, the interpreter
|
---|
953 | * raises an error when this method is called. However, it is possible
|
---|
954 | * to override the method to provide more dynamic behavior.
|
---|
955 | * If it is decided that a particular method should not be handled, then
|
---|
956 | * <i>super</i> should be called, so that ancestors can pick up the
|
---|
957 | * missing method.
|
---|
958 | * The example below creates
|
---|
959 | * a class <code>Roman</code>, which responds to methods with names
|
---|
960 | * consisting of roman numerals, returning the corresponding integer
|
---|
961 | * values.
|
---|
962 | *
|
---|
963 | * class Roman
|
---|
964 | * def romanToInt(str)
|
---|
965 | * # ...
|
---|
966 | * end
|
---|
967 | * def method_missing(methId)
|
---|
968 | * str = methId.id2name
|
---|
969 | * romanToInt(str)
|
---|
970 | * end
|
---|
971 | * end
|
---|
972 | *
|
---|
973 | * r = Roman.new
|
---|
974 | * r.iv #=> 4
|
---|
975 | * r.xxiii #=> 23
|
---|
976 | * r.mm #=> 2000
|
---|
977 | */
|
---|
978 | #ifdef MRB_DEFAULT_METHOD_MISSING
|
---|
979 | static mrb_value
|
---|
980 | mrb_obj_missing(mrb_state *mrb, mrb_value mod)
|
---|
981 | {
|
---|
982 | mrb_sym name;
|
---|
983 | mrb_value *a;
|
---|
984 | mrb_int alen;
|
---|
985 |
|
---|
986 | mrb_get_args(mrb, "n*", &name, &a, &alen);
|
---|
987 | mrb_method_missing(mrb, name, mod, mrb_ary_new_from_values(mrb, alen, a));
|
---|
988 | /* not reached */
|
---|
989 | return mrb_nil_value();
|
---|
990 | }
|
---|
991 | #endif
|
---|
992 |
|
---|
993 | static inline mrb_bool
|
---|
994 | basic_obj_respond_to(mrb_state *mrb, mrb_value obj, mrb_sym id, int pub)
|
---|
995 | {
|
---|
996 | return mrb_respond_to(mrb, obj, id);
|
---|
997 | }
|
---|
998 | /* 15.3.1.3.43 */
|
---|
999 | /*
|
---|
1000 | * call-seq:
|
---|
1001 | * obj.respond_to?(symbol, include_private=false) -> true or false
|
---|
1002 | *
|
---|
1003 | * Returns +true+ if _obj_ responds to the given
|
---|
1004 | * method. Private methods are included in the search only if the
|
---|
1005 | * optional second parameter evaluates to +true+.
|
---|
1006 | *
|
---|
1007 | * If the method is not implemented,
|
---|
1008 | * as Process.fork on Windows, File.lchmod on GNU/Linux, etc.,
|
---|
1009 | * false is returned.
|
---|
1010 | *
|
---|
1011 | * If the method is not defined, <code>respond_to_missing?</code>
|
---|
1012 | * method is called and the result is returned.
|
---|
1013 | */
|
---|
1014 | static mrb_value
|
---|
1015 | obj_respond_to(mrb_state *mrb, mrb_value self)
|
---|
1016 | {
|
---|
1017 | mrb_value mid;
|
---|
1018 | mrb_sym id, rtm_id;
|
---|
1019 | mrb_bool priv = FALSE, respond_to_p = TRUE;
|
---|
1020 |
|
---|
1021 | mrb_get_args(mrb, "o|b", &mid, &priv);
|
---|
1022 |
|
---|
1023 | if (mrb_symbol_p(mid)) {
|
---|
1024 | id = mrb_symbol(mid);
|
---|
1025 | }
|
---|
1026 | else {
|
---|
1027 | mrb_value tmp;
|
---|
1028 | if (mrb_string_p(mid)) {
|
---|
1029 | tmp = mrb_check_intern_str(mrb, mid);
|
---|
1030 | }
|
---|
1031 | else {
|
---|
1032 | tmp = mrb_check_string_type(mrb, mid);
|
---|
1033 | if (mrb_nil_p(tmp)) {
|
---|
1034 | tmp = mrb_inspect(mrb, mid);
|
---|
1035 | mrb_raisef(mrb, E_TYPE_ERROR, "%S is not a symbol", tmp);
|
---|
1036 | }
|
---|
1037 | tmp = mrb_check_intern_str(mrb, tmp);
|
---|
1038 | }
|
---|
1039 | if (mrb_nil_p(tmp)) {
|
---|
1040 | respond_to_p = FALSE;
|
---|
1041 | }
|
---|
1042 | else {
|
---|
1043 | id = mrb_symbol(tmp);
|
---|
1044 | }
|
---|
1045 | }
|
---|
1046 |
|
---|
1047 | if (respond_to_p) {
|
---|
1048 | respond_to_p = basic_obj_respond_to(mrb, self, id, !priv);
|
---|
1049 | }
|
---|
1050 |
|
---|
1051 | if (!respond_to_p) {
|
---|
1052 | rtm_id = mrb_intern_lit(mrb, "respond_to_missing?");
|
---|
1053 | if (basic_obj_respond_to(mrb, self, rtm_id, !priv)) {
|
---|
1054 | mrb_value args[2], v;
|
---|
1055 | args[0] = mid;
|
---|
1056 | args[1] = mrb_bool_value(priv);
|
---|
1057 | v = mrb_funcall_argv(mrb, self, rtm_id, 2, args);
|
---|
1058 | return mrb_bool_value(mrb_bool(v));
|
---|
1059 | }
|
---|
1060 | }
|
---|
1061 | return mrb_bool_value(respond_to_p);
|
---|
1062 | }
|
---|
1063 |
|
---|
1064 | /* 15.3.1.3.45 */
|
---|
1065 | /*
|
---|
1066 | * call-seq:
|
---|
1067 | * obj.singleton_methods(all=true) -> array
|
---|
1068 | *
|
---|
1069 | * Returns an array of the names of singleton methods for <i>obj</i>.
|
---|
1070 | * If the optional <i>all</i> parameter is true, the list will include
|
---|
1071 | * methods in modules included in <i>obj</i>.
|
---|
1072 | * Only public and protected singleton methods are returned.
|
---|
1073 | *
|
---|
1074 | * module Other
|
---|
1075 | * def three() end
|
---|
1076 | * end
|
---|
1077 | *
|
---|
1078 | * class Single
|
---|
1079 | * def Single.four() end
|
---|
1080 | * end
|
---|
1081 | *
|
---|
1082 | * a = Single.new
|
---|
1083 | *
|
---|
1084 | * def a.one()
|
---|
1085 | * end
|
---|
1086 | *
|
---|
1087 | * class << a
|
---|
1088 | * include Other
|
---|
1089 | * def two()
|
---|
1090 | * end
|
---|
1091 | * end
|
---|
1092 | *
|
---|
1093 | * Single.singleton_methods #=> [:four]
|
---|
1094 | * a.singleton_methods(false) #=> [:two, :one]
|
---|
1095 | * a.singleton_methods #=> [:two, :one, :three]
|
---|
1096 | */
|
---|
1097 | static mrb_value
|
---|
1098 | mrb_obj_singleton_methods_m(mrb_state *mrb, mrb_value self)
|
---|
1099 | {
|
---|
1100 | mrb_bool recur = TRUE;
|
---|
1101 | mrb_get_args(mrb, "|b", &recur);
|
---|
1102 | return mrb_obj_singleton_methods(mrb, recur, self);
|
---|
1103 | }
|
---|
1104 |
|
---|
1105 | static mrb_value
|
---|
1106 | mod_define_singleton_method(mrb_state *mrb, mrb_value self)
|
---|
1107 | {
|
---|
1108 | struct RProc *p;
|
---|
1109 | mrb_sym mid;
|
---|
1110 | mrb_value blk = mrb_nil_value();
|
---|
1111 |
|
---|
1112 | mrb_get_args(mrb, "n&", &mid, &blk);
|
---|
1113 | if (mrb_nil_p(blk)) {
|
---|
1114 | mrb_raise(mrb, E_ARGUMENT_ERROR, "no block given");
|
---|
1115 | }
|
---|
1116 | p = (struct RProc*)mrb_obj_alloc(mrb, MRB_TT_PROC, mrb->proc_class);
|
---|
1117 | mrb_proc_copy(p, mrb_proc_ptr(blk));
|
---|
1118 | p->flags |= MRB_PROC_STRICT;
|
---|
1119 | mrb_define_method_raw(mrb, mrb_class_ptr(mrb_singleton_class(mrb, self)), mid, p);
|
---|
1120 | return mrb_symbol_value(mid);
|
---|
1121 | }
|
---|
1122 |
|
---|
1123 | static mrb_value
|
---|
1124 | mrb_obj_ceqq(mrb_state *mrb, mrb_value self)
|
---|
1125 | {
|
---|
1126 | mrb_value v;
|
---|
1127 | mrb_int i, len;
|
---|
1128 | mrb_sym eqq = mrb_intern_lit(mrb, "===");
|
---|
1129 | mrb_value ary = mrb_ary_splat(mrb, self);
|
---|
1130 |
|
---|
1131 | mrb_get_args(mrb, "o", &v);
|
---|
1132 | len = RARRAY_LEN(ary);
|
---|
1133 | for (i=0; i<len; i++) {
|
---|
1134 | mrb_value c = mrb_funcall_argv(mrb, mrb_ary_entry(ary, i), eqq, 1, &v);
|
---|
1135 | if (mrb_test(c)) return mrb_true_value();
|
---|
1136 | }
|
---|
1137 | return mrb_false_value();
|
---|
1138 | }
|
---|
1139 |
|
---|
1140 | static mrb_value
|
---|
1141 | mrb_local_variables(mrb_state *mrb, mrb_value self)
|
---|
1142 | {
|
---|
1143 | struct RProc *proc;
|
---|
1144 | mrb_value vars;
|
---|
1145 | struct mrb_irep *irep;
|
---|
1146 | size_t i;
|
---|
1147 |
|
---|
1148 | proc = mrb->c->ci[-1].proc;
|
---|
1149 |
|
---|
1150 | if (MRB_PROC_CFUNC_P(proc)) {
|
---|
1151 | return mrb_ary_new(mrb);
|
---|
1152 | }
|
---|
1153 |
|
---|
1154 | irep = proc->body.irep;
|
---|
1155 | if (!irep->lv) {
|
---|
1156 | return mrb_ary_new(mrb);
|
---|
1157 | }
|
---|
1158 | vars = mrb_hash_new(mrb);
|
---|
1159 | for (i = 0; i + 1 < irep->nlocals; ++i) {
|
---|
1160 | if (irep->lv[i].name) {
|
---|
1161 | mrb_hash_set(mrb, vars, mrb_symbol_value(irep->lv[i].name), mrb_true_value());
|
---|
1162 | }
|
---|
1163 | }
|
---|
1164 | if (proc->env) {
|
---|
1165 | struct REnv *e = proc->env;
|
---|
1166 |
|
---|
1167 | while (e) {
|
---|
1168 | if (MRB_ENV_STACK_SHARED_P(e) &&
|
---|
1169 | !MRB_PROC_CFUNC_P(e->cxt.c->cibase[e->cioff].proc)) {
|
---|
1170 | irep = e->cxt.c->cibase[e->cioff].proc->body.irep;
|
---|
1171 | if (irep->lv) {
|
---|
1172 | for (i = 0; i + 1 < irep->nlocals; ++i) {
|
---|
1173 | if (irep->lv[i].name) {
|
---|
1174 | mrb_hash_set(mrb, vars, mrb_symbol_value(irep->lv[i].name), mrb_true_value());
|
---|
1175 | }
|
---|
1176 | }
|
---|
1177 | }
|
---|
1178 | }
|
---|
1179 | e = (struct REnv*)e->c;
|
---|
1180 | }
|
---|
1181 | }
|
---|
1182 |
|
---|
1183 | return mrb_hash_keys(mrb, vars);
|
---|
1184 | }
|
---|
1185 |
|
---|
1186 | mrb_value mrb_obj_equal_m(mrb_state *mrb, mrb_value);
|
---|
1187 | void
|
---|
1188 | mrb_init_kernel(mrb_state *mrb)
|
---|
1189 | {
|
---|
1190 | struct RClass *krn;
|
---|
1191 |
|
---|
1192 | mrb->kernel_module = krn = mrb_define_module(mrb, "Kernel"); /* 15.3.1 */
|
---|
1193 | mrb_define_class_method(mrb, krn, "block_given?", mrb_f_block_given_p_m, MRB_ARGS_NONE()); /* 15.3.1.2.2 */
|
---|
1194 | mrb_define_class_method(mrb, krn, "global_variables", mrb_f_global_variables, MRB_ARGS_NONE()); /* 15.3.1.2.4 */
|
---|
1195 | mrb_define_class_method(mrb, krn, "iterator?", mrb_f_block_given_p_m, MRB_ARGS_NONE()); /* 15.3.1.2.5 */
|
---|
1196 | mrb_define_class_method(mrb, krn, "local_variables", mrb_local_variables, MRB_ARGS_NONE()); /* 15.3.1.2.7 */
|
---|
1197 | ; /* 15.3.1.2.11 */
|
---|
1198 | mrb_define_class_method(mrb, krn, "raise", mrb_f_raise, MRB_ARGS_OPT(2)); /* 15.3.1.2.12 */
|
---|
1199 |
|
---|
1200 | mrb_define_method(mrb, krn, "singleton_class", mrb_singleton_class, MRB_ARGS_NONE());
|
---|
1201 |
|
---|
1202 | mrb_define_method(mrb, krn, "===", mrb_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.2 */
|
---|
1203 | mrb_define_method(mrb, krn, "block_given?", mrb_f_block_given_p_m, MRB_ARGS_NONE()); /* 15.3.1.3.6 */
|
---|
1204 | mrb_define_method(mrb, krn, "class", mrb_obj_class_m, MRB_ARGS_NONE()); /* 15.3.1.3.7 */
|
---|
1205 | mrb_define_method(mrb, krn, "clone", mrb_obj_clone, MRB_ARGS_NONE()); /* 15.3.1.3.8 */
|
---|
1206 | mrb_define_method(mrb, krn, "dup", mrb_obj_dup, MRB_ARGS_NONE()); /* 15.3.1.3.9 */
|
---|
1207 | mrb_define_method(mrb, krn, "eql?", mrb_obj_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.10 */
|
---|
1208 | mrb_define_method(mrb, krn, "equal?", mrb_obj_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.11 */
|
---|
1209 | mrb_define_method(mrb, krn, "extend", mrb_obj_extend_m, MRB_ARGS_ANY()); /* 15.3.1.3.13 */
|
---|
1210 | mrb_define_method(mrb, krn, "freeze", mrb_obj_freeze, MRB_ARGS_NONE());
|
---|
1211 | mrb_define_method(mrb, krn, "frozen?", mrb_obj_frozen, MRB_ARGS_NONE());
|
---|
1212 | mrb_define_method(mrb, krn, "global_variables", mrb_f_global_variables, MRB_ARGS_NONE()); /* 15.3.1.3.14 */
|
---|
1213 | mrb_define_method(mrb, krn, "hash", mrb_obj_hash, MRB_ARGS_NONE()); /* 15.3.1.3.15 */
|
---|
1214 | mrb_define_method(mrb, krn, "initialize_copy", mrb_obj_init_copy, MRB_ARGS_REQ(1)); /* 15.3.1.3.16 */
|
---|
1215 | mrb_define_method(mrb, krn, "inspect", mrb_obj_inspect, MRB_ARGS_NONE()); /* 15.3.1.3.17 */
|
---|
1216 | mrb_define_method(mrb, krn, "instance_of?", obj_is_instance_of, MRB_ARGS_REQ(1)); /* 15.3.1.3.19 */
|
---|
1217 | mrb_define_method(mrb, krn, "instance_variable_defined?", mrb_obj_ivar_defined, MRB_ARGS_REQ(1)); /* 15.3.1.3.20 */
|
---|
1218 | mrb_define_method(mrb, krn, "instance_variable_get", mrb_obj_ivar_get, MRB_ARGS_REQ(1)); /* 15.3.1.3.21 */
|
---|
1219 | mrb_define_method(mrb, krn, "instance_variable_set", mrb_obj_ivar_set, MRB_ARGS_REQ(2)); /* 15.3.1.3.22 */
|
---|
1220 | mrb_define_method(mrb, krn, "instance_variables", mrb_obj_instance_variables, MRB_ARGS_NONE()); /* 15.3.1.3.23 */
|
---|
1221 | mrb_define_method(mrb, krn, "is_a?", mrb_obj_is_kind_of_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.24 */
|
---|
1222 | mrb_define_method(mrb, krn, "iterator?", mrb_f_block_given_p_m, MRB_ARGS_NONE()); /* 15.3.1.3.25 */
|
---|
1223 | mrb_define_method(mrb, krn, "kind_of?", mrb_obj_is_kind_of_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.26 */
|
---|
1224 | mrb_define_method(mrb, krn, "local_variables", mrb_local_variables, MRB_ARGS_NONE()); /* 15.3.1.3.28 */
|
---|
1225 | #ifdef MRB_DEFAULT_METHOD_MISSING
|
---|
1226 | mrb_define_method(mrb, krn, "method_missing", mrb_obj_missing, MRB_ARGS_ANY()); /* 15.3.1.3.30 */
|
---|
1227 | #endif
|
---|
1228 | mrb_define_method(mrb, krn, "methods", mrb_obj_methods_m, MRB_ARGS_OPT(1)); /* 15.3.1.3.31 */
|
---|
1229 | mrb_define_method(mrb, krn, "nil?", mrb_false, MRB_ARGS_NONE()); /* 15.3.1.3.32 */
|
---|
1230 | mrb_define_method(mrb, krn, "object_id", mrb_obj_id_m, MRB_ARGS_NONE()); /* 15.3.1.3.33 */
|
---|
1231 | mrb_define_method(mrb, krn, "private_methods", mrb_obj_private_methods, MRB_ARGS_OPT(1)); /* 15.3.1.3.36 */
|
---|
1232 | mrb_define_method(mrb, krn, "protected_methods", mrb_obj_protected_methods, MRB_ARGS_OPT(1)); /* 15.3.1.3.37 */
|
---|
1233 | mrb_define_method(mrb, krn, "public_methods", mrb_obj_public_methods, MRB_ARGS_OPT(1)); /* 15.3.1.3.38 */
|
---|
1234 | mrb_define_method(mrb, krn, "raise", mrb_f_raise, MRB_ARGS_ANY()); /* 15.3.1.3.40 */
|
---|
1235 | mrb_define_method(mrb, krn, "remove_instance_variable", mrb_obj_remove_instance_variable,MRB_ARGS_REQ(1)); /* 15.3.1.3.41 */
|
---|
1236 | mrb_define_method(mrb, krn, "respond_to?", obj_respond_to, MRB_ARGS_ANY()); /* 15.3.1.3.43 */
|
---|
1237 | mrb_define_method(mrb, krn, "send", mrb_f_send, MRB_ARGS_ANY()); /* 15.3.1.3.44 */
|
---|
1238 | mrb_define_method(mrb, krn, "singleton_methods", mrb_obj_singleton_methods_m, MRB_ARGS_OPT(1)); /* 15.3.1.3.45 */
|
---|
1239 | mrb_define_method(mrb, krn, "define_singleton_method", mod_define_singleton_method, MRB_ARGS_ANY());
|
---|
1240 | mrb_define_method(mrb, krn, "to_s", mrb_any_to_s, MRB_ARGS_NONE()); /* 15.3.1.3.46 */
|
---|
1241 | mrb_define_method(mrb, krn, "__case_eqq", mrb_obj_ceqq, MRB_ARGS_REQ(1)); /* internal */
|
---|
1242 |
|
---|
1243 | mrb_include_module(mrb, mrb->object_class, mrb->kernel_module);
|
---|
1244 | mrb_alias_method(mrb, mrb->module_class, mrb_intern_lit(mrb, "dup"), mrb_intern_lit(mrb, "clone"));
|
---|
1245 | }
|
---|