1 | /*
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2 | ** object.c - Object, NilClass, TrueClass, FalseClass class
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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/class.h>
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9 | #include <mruby/numeric.h>
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10 | #include <mruby/string.h>
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11 | #include <mruby/class.h>
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12 |
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13 | MRB_API mrb_bool
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14 | mrb_obj_eq(mrb_state *mrb, mrb_value v1, mrb_value v2)
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15 | {
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16 | if (mrb_type(v1) != mrb_type(v2)) return FALSE;
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17 | switch (mrb_type(v1)) {
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18 | case MRB_TT_TRUE:
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19 | return TRUE;
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20 |
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21 | case MRB_TT_FALSE:
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22 | case MRB_TT_FIXNUM:
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23 | return (mrb_fixnum(v1) == mrb_fixnum(v2));
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24 | case MRB_TT_SYMBOL:
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25 | return (mrb_symbol(v1) == mrb_symbol(v2));
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26 |
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27 | #ifndef MRB_WITHOUT_FLOAT
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28 | case MRB_TT_FLOAT:
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29 | return (mrb_float(v1) == mrb_float(v2));
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30 | #endif
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31 |
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32 | default:
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33 | return (mrb_ptr(v1) == mrb_ptr(v2));
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34 | }
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35 | }
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36 |
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37 | MRB_API mrb_bool
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38 | mrb_obj_equal(mrb_state *mrb, mrb_value v1, mrb_value v2)
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39 | {
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40 | /* temporary definition */
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41 | return mrb_obj_eq(mrb, v1, v2);
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42 | }
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43 |
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44 | MRB_API mrb_bool
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45 | mrb_equal(mrb_state *mrb, mrb_value obj1, mrb_value obj2)
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46 | {
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47 | mrb_value result;
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48 |
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49 | if (mrb_obj_eq(mrb, obj1, obj2)) return TRUE;
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50 | result = mrb_funcall(mrb, obj1, "==", 1, obj2);
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51 | if (mrb_test(result)) return TRUE;
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52 | return FALSE;
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53 | }
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54 |
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55 | /*
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56 | * Document-class: NilClass
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57 | *
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58 | * The class of the singleton object <code>nil</code>.
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59 | */
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60 |
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61 | /* 15.2.4.3.4 */
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62 | /*
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63 | * call_seq:
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64 | * nil.nil? -> true
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65 | *
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66 | * Only the object <i>nil</i> responds <code>true</code> to <code>nil?</code>.
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67 | */
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68 |
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69 | static mrb_value
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70 | mrb_true(mrb_state *mrb, mrb_value obj)
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71 | {
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72 | return mrb_true_value();
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73 | }
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74 |
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75 | /* 15.2.4.3.5 */
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76 | /*
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77 | * call-seq:
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78 | * nil.to_s -> ""
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79 | *
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80 | * Always returns the empty string.
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81 | */
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82 |
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83 | static mrb_value
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84 | nil_to_s(mrb_state *mrb, mrb_value obj)
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85 | {
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86 | return mrb_str_new_frozen(mrb, 0, 0);
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87 | }
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88 |
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89 | static mrb_value
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90 | nil_inspect(mrb_state *mrb, mrb_value obj)
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91 | {
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92 | return mrb_str_new_lit_frozen(mrb, "nil");
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93 | }
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94 |
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95 | /***********************************************************************
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96 | * Document-class: TrueClass
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97 | *
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98 | * The global value <code>true</code> is the only instance of class
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99 | * <code>TrueClass</code> and represents a logically true value in
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100 | * boolean expressions. The class provides operators allowing
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101 | * <code>true</code> to be used in logical expressions.
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102 | */
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103 |
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104 | /* 15.2.5.3.1 */
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105 | /*
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106 | * call-seq:
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107 | * true & obj -> true or false
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108 | *
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109 | * And---Returns <code>false</code> if <i>obj</i> is
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110 | * <code>nil</code> or <code>false</code>, <code>true</code> otherwise.
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111 | */
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112 |
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113 | static mrb_value
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114 | true_and(mrb_state *mrb, mrb_value obj)
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115 | {
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116 | mrb_bool obj2;
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117 |
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118 | mrb_get_args(mrb, "b", &obj2);
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119 |
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120 | return mrb_bool_value(obj2);
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121 | }
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122 |
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123 | /* 15.2.5.3.2 */
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124 | /*
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125 | * call-seq:
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126 | * true ^ obj -> !obj
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127 | *
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128 | * Exclusive Or---Returns <code>true</code> if <i>obj</i> is
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129 | * <code>nil</code> or <code>false</code>, <code>false</code>
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130 | * otherwise.
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131 | */
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132 |
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133 | static mrb_value
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134 | true_xor(mrb_state *mrb, mrb_value obj)
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135 | {
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136 | mrb_bool obj2;
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137 |
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138 | mrb_get_args(mrb, "b", &obj2);
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139 | return mrb_bool_value(!obj2);
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140 | }
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141 |
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142 | /* 15.2.5.3.3 */
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143 | /*
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144 | * call-seq:
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145 | * true.to_s -> "true"
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146 | *
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147 | * The string representation of <code>true</code> is "true".
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148 | */
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149 |
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150 | static mrb_value
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151 | true_to_s(mrb_state *mrb, mrb_value obj)
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152 | {
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153 | return mrb_str_new_lit_frozen(mrb, "true");
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154 | }
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155 |
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156 | /* 15.2.5.3.4 */
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157 | /*
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158 | * call-seq:
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159 | * true | obj -> true
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160 | *
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161 | * Or---Returns <code>true</code>. As <i>anObject</i> is an argument to
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162 | * a method call, it is always evaluated; there is no short-circuit
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163 | * evaluation in this case.
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164 | *
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165 | * true | puts("or")
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166 | * true || puts("logical or")
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167 | *
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168 | * <em>produces:</em>
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169 | *
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170 | * or
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171 | */
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172 |
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173 | static mrb_value
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174 | true_or(mrb_state *mrb, mrb_value obj)
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175 | {
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176 | return mrb_true_value();
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177 | }
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178 |
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179 | /*
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180 | * Document-class: FalseClass
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181 | *
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182 | * The global value <code>false</code> is the only instance of class
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183 | * <code>FalseClass</code> and represents a logically false value in
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184 | * boolean expressions. The class provides operators allowing
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185 | * <code>false</code> to participate correctly in logical expressions.
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186 | *
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187 | */
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188 |
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189 | /* 15.2.4.3.1 */
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190 | /* 15.2.6.3.1 */
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191 | /*
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192 | * call-seq:
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193 | * false & obj -> false
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194 | * nil & obj -> false
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195 | *
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196 | * And---Returns <code>false</code>. <i>obj</i> is always
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197 | * evaluated as it is the argument to a method call---there is no
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198 | * short-circuit evaluation in this case.
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199 | */
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200 |
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201 | static mrb_value
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202 | false_and(mrb_state *mrb, mrb_value obj)
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203 | {
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204 | return mrb_false_value();
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205 | }
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206 |
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207 | /* 15.2.4.3.2 */
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208 | /* 15.2.6.3.2 */
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209 | /*
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210 | * call-seq:
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211 | * false ^ obj -> true or false
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212 | * nil ^ obj -> true or false
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213 | *
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214 | * Exclusive Or---If <i>obj</i> is <code>nil</code> or
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215 | * <code>false</code>, returns <code>false</code>; otherwise, returns
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216 | * <code>true</code>.
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217 | *
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218 | */
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219 |
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220 | static mrb_value
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221 | false_xor(mrb_state *mrb, mrb_value obj)
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222 | {
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223 | mrb_bool obj2;
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224 |
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225 | mrb_get_args(mrb, "b", &obj2);
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226 | return mrb_bool_value(obj2);
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227 | }
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228 |
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229 | /* 15.2.4.3.3 */
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230 | /* 15.2.6.3.4 */
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231 | /*
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232 | * call-seq:
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233 | * false | obj -> true or false
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234 | * nil | obj -> true or false
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235 | *
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236 | * Or---Returns <code>false</code> if <i>obj</i> is
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237 | * <code>nil</code> or <code>false</code>; <code>true</code> otherwise.
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238 | */
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239 |
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240 | static mrb_value
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241 | false_or(mrb_state *mrb, mrb_value obj)
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242 | {
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243 | mrb_bool obj2;
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244 |
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245 | mrb_get_args(mrb, "b", &obj2);
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246 | return mrb_bool_value(obj2);
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247 | }
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248 |
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249 | /* 15.2.6.3.3 */
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250 | /*
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251 | * call-seq:
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252 | * false.to_s -> "false"
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253 | *
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254 | * 'nuf said...
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255 | */
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256 |
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257 | static mrb_value
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258 | false_to_s(mrb_state *mrb, mrb_value obj)
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259 | {
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260 | return mrb_str_new_lit_frozen(mrb, "false");
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261 | }
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262 |
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263 | void
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264 | mrb_init_object(mrb_state *mrb)
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265 | {
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266 | struct RClass *n;
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267 | struct RClass *t;
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268 | struct RClass *f;
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269 |
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270 | mrb->nil_class = n = mrb_define_class(mrb, "NilClass", mrb->object_class);
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271 | MRB_SET_INSTANCE_TT(n, MRB_TT_TRUE);
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272 | mrb_undef_class_method(mrb, n, "new");
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273 | mrb_define_method(mrb, n, "&", false_and, MRB_ARGS_REQ(1)); /* 15.2.4.3.1 */
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274 | mrb_define_method(mrb, n, "^", false_xor, MRB_ARGS_REQ(1)); /* 15.2.4.3.2 */
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275 | mrb_define_method(mrb, n, "|", false_or, MRB_ARGS_REQ(1)); /* 15.2.4.3.3 */
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276 | mrb_define_method(mrb, n, "nil?", mrb_true, MRB_ARGS_NONE()); /* 15.2.4.3.4 */
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277 | mrb_define_method(mrb, n, "to_s", nil_to_s, MRB_ARGS_NONE()); /* 15.2.4.3.5 */
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278 | mrb_define_method(mrb, n, "inspect", nil_inspect, MRB_ARGS_NONE());
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279 |
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280 | mrb->true_class = t = mrb_define_class(mrb, "TrueClass", mrb->object_class);
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281 | MRB_SET_INSTANCE_TT(t, MRB_TT_TRUE);
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282 | mrb_undef_class_method(mrb, t, "new");
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283 | mrb_define_method(mrb, t, "&", true_and, MRB_ARGS_REQ(1)); /* 15.2.5.3.1 */
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284 | mrb_define_method(mrb, t, "^", true_xor, MRB_ARGS_REQ(1)); /* 15.2.5.3.2 */
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285 | mrb_define_method(mrb, t, "to_s", true_to_s, MRB_ARGS_NONE()); /* 15.2.5.3.3 */
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286 | mrb_define_method(mrb, t, "|", true_or, MRB_ARGS_REQ(1)); /* 15.2.5.3.4 */
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287 | mrb_define_method(mrb, t, "inspect", true_to_s, MRB_ARGS_NONE());
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288 |
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289 | mrb->false_class = f = mrb_define_class(mrb, "FalseClass", mrb->object_class);
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290 | MRB_SET_INSTANCE_TT(f, MRB_TT_TRUE);
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291 | mrb_undef_class_method(mrb, f, "new");
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292 | mrb_define_method(mrb, f, "&", false_and, MRB_ARGS_REQ(1)); /* 15.2.6.3.1 */
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293 | mrb_define_method(mrb, f, "^", false_xor, MRB_ARGS_REQ(1)); /* 15.2.6.3.2 */
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294 | mrb_define_method(mrb, f, "to_s", false_to_s, MRB_ARGS_NONE()); /* 15.2.6.3.3 */
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295 | mrb_define_method(mrb, f, "|", false_or, MRB_ARGS_REQ(1)); /* 15.2.6.3.4 */
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296 | mrb_define_method(mrb, f, "inspect", false_to_s, MRB_ARGS_NONE());
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297 | }
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298 |
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299 | static mrb_value
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300 | convert_type(mrb_state *mrb, mrb_value val, const char *tname, const char *method, mrb_bool raise)
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301 | {
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302 | mrb_sym m = 0;
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303 |
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304 | m = mrb_intern_cstr(mrb, method);
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305 | if (!mrb_respond_to(mrb, val, m)) {
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306 | if (raise) {
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307 | mrb_raisef(mrb, E_TYPE_ERROR, "can't convert %Y into %s", val, tname);
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308 | }
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309 | return mrb_nil_value();
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310 | }
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311 | return mrb_funcall_argv(mrb, val, m, 0, 0);
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312 | }
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313 |
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314 | MRB_API mrb_value
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315 | mrb_convert_type(mrb_state *mrb, mrb_value val, enum mrb_vtype type, const char *tname, const char *method)
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316 | {
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317 | mrb_value v;
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318 |
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319 | if (mrb_type(val) == type) return val;
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320 | v = convert_type(mrb, val, tname, method, TRUE);
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321 | if (mrb_type(v) != type) {
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322 | mrb_raisef(mrb, E_TYPE_ERROR, "%v cannot be converted to %s by #%s", val, tname, method);
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323 | }
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324 | return v;
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325 | }
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326 |
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327 | MRB_API mrb_value
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328 | mrb_check_convert_type(mrb_state *mrb, mrb_value val, enum mrb_vtype type, const char *tname, const char *method)
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329 | {
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330 | mrb_value v;
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331 |
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332 | if (mrb_type(val) == type && type != MRB_TT_DATA && type != MRB_TT_ISTRUCT) return val;
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333 | v = convert_type(mrb, val, tname, method, FALSE);
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334 | if (mrb_nil_p(v) || mrb_type(v) != type) return mrb_nil_value();
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335 | return v;
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336 | }
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337 |
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338 | static const struct types {
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339 | unsigned char type;
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340 | const char *name;
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341 | } builtin_types[] = {
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342 | /* {MRB_TT_NIL, "nil"}, */
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343 | {MRB_TT_FALSE, "false"},
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344 | {MRB_TT_TRUE, "true"},
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345 | {MRB_TT_FIXNUM, "Fixnum"},
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346 | {MRB_TT_SYMBOL, "Symbol"}, /* :symbol */
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347 | {MRB_TT_MODULE, "Module"},
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348 | {MRB_TT_OBJECT, "Object"},
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349 | {MRB_TT_CLASS, "Class"},
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350 | {MRB_TT_ICLASS, "iClass"}, /* internal use: mixed-in module holder */
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351 | {MRB_TT_SCLASS, "SClass"},
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352 | {MRB_TT_PROC, "Proc"},
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353 | #ifndef MRB_WITHOUT_FLOAT
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354 | {MRB_TT_FLOAT, "Float"},
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355 | #endif
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356 | {MRB_TT_ARRAY, "Array"},
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357 | {MRB_TT_HASH, "Hash"},
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358 | {MRB_TT_STRING, "String"},
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359 | {MRB_TT_RANGE, "Range"},
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360 | /* {MRB_TT_BIGNUM, "Bignum"}, */
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361 | {MRB_TT_FILE, "File"},
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362 | {MRB_TT_DATA, "Data"}, /* internal use: wrapped C pointers */
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363 | /* {MRB_TT_VARMAP, "Varmap"}, */ /* internal use: dynamic variables */
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364 | /* {MRB_TT_NODE, "Node"}, */ /* internal use: syntax tree node */
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365 | /* {MRB_TT_UNDEF, "undef"}, */ /* internal use: #undef; should not happen */
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366 | {MRB_TT_MAXDEFINE, 0}
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367 | };
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368 |
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369 | MRB_API void
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370 | mrb_check_type(mrb_state *mrb, mrb_value x, enum mrb_vtype t)
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371 | {
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372 | const struct types *type = builtin_types;
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373 | enum mrb_vtype xt;
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374 |
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375 | xt = mrb_type(x);
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376 | if ((xt != t) || (xt == MRB_TT_DATA) || (xt == MRB_TT_ISTRUCT)) {
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377 | while (type->type < MRB_TT_MAXDEFINE) {
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378 | if (type->type == t) {
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379 | const char *etype;
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380 |
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381 | if (mrb_nil_p(x)) {
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382 | etype = "nil";
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383 | }
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384 | else if (mrb_fixnum_p(x)) {
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385 | etype = "Fixnum";
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386 | }
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387 | else if (mrb_symbol_p(x)) {
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388 | etype = "Symbol";
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389 | }
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390 | else if (mrb_immediate_p(x)) {
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391 | etype = RSTRING_PTR(mrb_obj_as_string(mrb, x));
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392 | }
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393 | else {
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394 | etype = mrb_obj_classname(mrb, x);
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395 | }
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396 | mrb_raisef(mrb, E_TYPE_ERROR, "wrong argument type %s (expected %s)",
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397 | etype, type->name);
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398 | }
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399 | type++;
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400 | }
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401 | mrb_raisef(mrb, E_TYPE_ERROR, "unknown type %d (%d given)", t, mrb_type(x));
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402 | }
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403 | }
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404 |
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405 | /* 15.3.1.3.46 */
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406 | /*
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407 | * call-seq:
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408 | * obj.to_s => string
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409 | *
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410 | * Returns a string representing <i>obj</i>. The default
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411 | * <code>to_s</code> prints the object's class and an encoding of the
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412 | * object id. As a special case, the top-level object that is the
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413 | * initial execution context of Ruby programs returns "main."
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414 | */
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415 |
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416 | MRB_API mrb_value
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417 | mrb_any_to_s(mrb_state *mrb, mrb_value obj)
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418 | {
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419 | mrb_value str = mrb_str_new_capa(mrb, 20);
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420 | const char *cname = mrb_obj_classname(mrb, obj);
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421 |
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422 | mrb_str_cat_lit(mrb, str, "#<");
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423 | mrb_str_cat_cstr(mrb, str, cname);
|
---|
424 | if (!mrb_immediate_p(obj)) {
|
---|
425 | mrb_str_cat_lit(mrb, str, ":");
|
---|
426 | mrb_str_cat_str(mrb, str, mrb_ptr_to_str(mrb, mrb_ptr(obj)));
|
---|
427 | }
|
---|
428 | mrb_str_cat_lit(mrb, str, ">");
|
---|
429 |
|
---|
430 | return str;
|
---|
431 | }
|
---|
432 |
|
---|
433 | /*
|
---|
434 | * call-seq:
|
---|
435 | * obj.is_a?(class) => true or false
|
---|
436 | * obj.kind_of?(class) => true or false
|
---|
437 | *
|
---|
438 | * Returns <code>true</code> if <i>class</i> is the class of
|
---|
439 | * <i>obj</i>, or if <i>class</i> is one of the superclasses of
|
---|
440 | * <i>obj</i> or modules included in <i>obj</i>.
|
---|
441 | *
|
---|
442 | * module M; end
|
---|
443 | * class A
|
---|
444 | * include M
|
---|
445 | * end
|
---|
446 | * class B < A; end
|
---|
447 | * class C < B; end
|
---|
448 | * b = B.new
|
---|
449 | * b.instance_of? A #=> false
|
---|
450 | * b.instance_of? B #=> true
|
---|
451 | * b.instance_of? C #=> false
|
---|
452 | * b.instance_of? M #=> false
|
---|
453 | * b.kind_of? A #=> true
|
---|
454 | * b.kind_of? B #=> true
|
---|
455 | * b.kind_of? C #=> false
|
---|
456 | * b.kind_of? M #=> true
|
---|
457 | */
|
---|
458 |
|
---|
459 | MRB_API mrb_bool
|
---|
460 | mrb_obj_is_kind_of(mrb_state *mrb, mrb_value obj, struct RClass *c)
|
---|
461 | {
|
---|
462 | struct RClass *cl = mrb_class(mrb, obj);
|
---|
463 |
|
---|
464 | switch (c->tt) {
|
---|
465 | case MRB_TT_MODULE:
|
---|
466 | case MRB_TT_CLASS:
|
---|
467 | case MRB_TT_ICLASS:
|
---|
468 | case MRB_TT_SCLASS:
|
---|
469 | break;
|
---|
470 |
|
---|
471 | default:
|
---|
472 | mrb_raise(mrb, E_TYPE_ERROR, "class or module required");
|
---|
473 | }
|
---|
474 |
|
---|
475 | MRB_CLASS_ORIGIN(c);
|
---|
476 | while (cl) {
|
---|
477 | if (cl == c || cl->mt == c->mt)
|
---|
478 | return TRUE;
|
---|
479 | cl = cl->super;
|
---|
480 | }
|
---|
481 | return FALSE;
|
---|
482 | }
|
---|
483 |
|
---|
484 | MRB_API mrb_value
|
---|
485 | mrb_to_int(mrb_state *mrb, mrb_value val)
|
---|
486 | {
|
---|
487 |
|
---|
488 | if (!mrb_fixnum_p(val)) {
|
---|
489 | #ifndef MRB_WITHOUT_FLOAT
|
---|
490 | if (mrb_float_p(val)) {
|
---|
491 | return mrb_flo_to_fixnum(mrb, val);
|
---|
492 | }
|
---|
493 | #endif
|
---|
494 | mrb_raisef(mrb, E_TYPE_ERROR, "can't convert %Y to Integer", val);
|
---|
495 | }
|
---|
496 | return val;
|
---|
497 | }
|
---|
498 |
|
---|
499 | MRB_API mrb_value
|
---|
500 | mrb_convert_to_integer(mrb_state *mrb, mrb_value val, mrb_int base)
|
---|
501 | {
|
---|
502 | mrb_value tmp;
|
---|
503 |
|
---|
504 | if (mrb_nil_p(val)) {
|
---|
505 | if (base != 0) goto arg_error;
|
---|
506 | mrb_raise(mrb, E_TYPE_ERROR, "can't convert nil into Integer");
|
---|
507 | }
|
---|
508 | switch (mrb_type(val)) {
|
---|
509 | #ifndef MRB_WITHOUT_FLOAT
|
---|
510 | case MRB_TT_FLOAT:
|
---|
511 | if (base != 0) goto arg_error;
|
---|
512 | return mrb_flo_to_fixnum(mrb, val);
|
---|
513 | #endif
|
---|
514 |
|
---|
515 | case MRB_TT_FIXNUM:
|
---|
516 | if (base != 0) goto arg_error;
|
---|
517 | return val;
|
---|
518 |
|
---|
519 | case MRB_TT_STRING:
|
---|
520 | string_conv:
|
---|
521 | return mrb_str_to_inum(mrb, val, base, TRUE);
|
---|
522 |
|
---|
523 | default:
|
---|
524 | break;
|
---|
525 | }
|
---|
526 | if (base != 0) {
|
---|
527 | tmp = mrb_check_string_type(mrb, val);
|
---|
528 | if (!mrb_nil_p(tmp)) {
|
---|
529 | val = tmp;
|
---|
530 | goto string_conv;
|
---|
531 | }
|
---|
532 | arg_error:
|
---|
533 | mrb_raise(mrb, E_ARGUMENT_ERROR, "base specified for non string value");
|
---|
534 | }
|
---|
535 | /* to raise TypeError */
|
---|
536 | return mrb_to_int(mrb, val);
|
---|
537 | }
|
---|
538 |
|
---|
539 | MRB_API mrb_value
|
---|
540 | mrb_Integer(mrb_state *mrb, mrb_value val)
|
---|
541 | {
|
---|
542 | return mrb_convert_to_integer(mrb, val, 0);
|
---|
543 | }
|
---|
544 |
|
---|
545 | #ifndef MRB_WITHOUT_FLOAT
|
---|
546 | MRB_API mrb_value
|
---|
547 | mrb_Float(mrb_state *mrb, mrb_value val)
|
---|
548 | {
|
---|
549 | if (mrb_nil_p(val)) {
|
---|
550 | mrb_raise(mrb, E_TYPE_ERROR, "can't convert nil into Float");
|
---|
551 | }
|
---|
552 | switch (mrb_type(val)) {
|
---|
553 | case MRB_TT_FIXNUM:
|
---|
554 | return mrb_float_value(mrb, (mrb_float)mrb_fixnum(val));
|
---|
555 |
|
---|
556 | case MRB_TT_FLOAT:
|
---|
557 | return val;
|
---|
558 |
|
---|
559 | case MRB_TT_STRING:
|
---|
560 | return mrb_float_value(mrb, mrb_str_to_dbl(mrb, val, TRUE));
|
---|
561 |
|
---|
562 | default:
|
---|
563 | return mrb_convert_type(mrb, val, MRB_TT_FLOAT, "Float", "to_f");
|
---|
564 | }
|
---|
565 | }
|
---|
566 | #endif
|
---|
567 |
|
---|
568 | MRB_API mrb_value
|
---|
569 | mrb_to_str(mrb_state *mrb, mrb_value val)
|
---|
570 | {
|
---|
571 | return mrb_ensure_string_type(mrb, val);
|
---|
572 | }
|
---|
573 |
|
---|
574 | /* obsolete: use mrb_ensure_string_type() instead */
|
---|
575 | MRB_API mrb_value
|
---|
576 | mrb_string_type(mrb_state *mrb, mrb_value str)
|
---|
577 | {
|
---|
578 | return mrb_ensure_string_type(mrb, str);
|
---|
579 | }
|
---|
580 |
|
---|
581 | MRB_API mrb_value
|
---|
582 | mrb_ensure_string_type(mrb_state *mrb, mrb_value str)
|
---|
583 | {
|
---|
584 | if (!mrb_string_p(str)) {
|
---|
585 | mrb_raisef(mrb, E_TYPE_ERROR, "%Y cannot be converted to String", str);
|
---|
586 | }
|
---|
587 | return str;
|
---|
588 | }
|
---|
589 |
|
---|
590 | MRB_API mrb_value
|
---|
591 | mrb_check_string_type(mrb_state *mrb, mrb_value str)
|
---|
592 | {
|
---|
593 | if (!mrb_string_p(str)) return mrb_nil_value();
|
---|
594 | return str;
|
---|
595 | }
|
---|
596 |
|
---|
597 | MRB_API mrb_value
|
---|
598 | mrb_ensure_array_type(mrb_state *mrb, mrb_value ary)
|
---|
599 | {
|
---|
600 | if (!mrb_array_p(ary)) {
|
---|
601 | mrb_raisef(mrb, E_TYPE_ERROR, "%Y cannot be converted to Array", ary);
|
---|
602 | }
|
---|
603 | return ary;
|
---|
604 | }
|
---|
605 |
|
---|
606 | MRB_API mrb_value
|
---|
607 | mrb_check_array_type(mrb_state *mrb, mrb_value ary)
|
---|
608 | {
|
---|
609 | if (!mrb_array_p(ary)) return mrb_nil_value();
|
---|
610 | return ary;
|
---|
611 | }
|
---|
612 |
|
---|
613 | MRB_API mrb_value
|
---|
614 | mrb_ensure_hash_type(mrb_state *mrb, mrb_value hash)
|
---|
615 | {
|
---|
616 | if (!mrb_hash_p(hash)) {
|
---|
617 | mrb_raisef(mrb, E_TYPE_ERROR, "%Y cannot be converted to Hash", hash);
|
---|
618 | }
|
---|
619 | return hash;
|
---|
620 | }
|
---|
621 |
|
---|
622 | MRB_API mrb_value
|
---|
623 | mrb_check_hash_type(mrb_state *mrb, mrb_value hash)
|
---|
624 | {
|
---|
625 | if (!mrb_hash_p(hash)) return mrb_nil_value();
|
---|
626 | return hash;
|
---|
627 | }
|
---|
628 |
|
---|
629 | MRB_API mrb_value
|
---|
630 | mrb_inspect(mrb_state *mrb, mrb_value obj)
|
---|
631 | {
|
---|
632 | return mrb_obj_as_string(mrb, mrb_funcall(mrb, obj, "inspect", 0));
|
---|
633 | }
|
---|
634 |
|
---|
635 | MRB_API mrb_bool
|
---|
636 | mrb_eql(mrb_state *mrb, mrb_value obj1, mrb_value obj2)
|
---|
637 | {
|
---|
638 | if (mrb_obj_eq(mrb, obj1, obj2)) return TRUE;
|
---|
639 | return mrb_test(mrb_funcall(mrb, obj1, "eql?", 1, obj2));
|
---|
640 | }
|
---|