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