[270] | 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/class.h"
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| 10 | #include "mruby/proc.h"
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| 11 | #include "mruby/string.h"
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| 12 | #include "mruby/variable.h"
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| 13 | #include "mruby/error.h"
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| 14 |
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| 15 | typedef enum {
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| 16 | NOEX_PUBLIC = 0x00,
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| 17 | NOEX_NOSUPER = 0x01,
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| 18 | NOEX_PRIVATE = 0x02,
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| 19 | NOEX_PROTECTED = 0x04,
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| 20 | NOEX_MASK = 0x06,
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| 21 | NOEX_BASIC = 0x08,
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| 22 | NOEX_UNDEF = NOEX_NOSUPER,
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| 23 | NOEX_MODFUNC = 0x12,
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| 24 | NOEX_SUPER = 0x20,
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| 25 | NOEX_VCALL = 0x40,
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| 26 | NOEX_RESPONDS = 0x80
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| 27 | } mrb_method_flag_t;
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| 28 |
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| 29 | static mrb_bool
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| 30 | mrb_obj_basic_to_s_p(mrb_state *mrb, mrb_value obj)
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| 31 | {
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| 32 | struct RProc *me = mrb_method_search(mrb, mrb_class(mrb, obj), mrb_intern_lit(mrb, "to_s"));
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| 33 | if (MRB_PROC_CFUNC_P(me) && (me->body.func == mrb_any_to_s))
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| 34 | return TRUE;
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| 35 | return FALSE;
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| 36 | }
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| 37 |
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| 38 | /* 15.3.1.3.17 */
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| 39 | /*
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| 40 | * call-seq:
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| 41 | * obj.inspect -> string
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| 42 | *
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| 43 | * Returns a string containing a human-readable representation of
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| 44 | * <i>obj</i>. If not overridden and no instance variables, uses the
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| 45 | * <code>to_s</code> method to generate the string.
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| 46 | * <i>obj</i>. If not overridden, uses the <code>to_s</code> method to
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| 47 | * generate the string.
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| 48 | *
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| 49 | * [ 1, 2, 3..4, 'five' ].inspect #=> "[1, 2, 3..4, \"five\"]"
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| 50 | * Time.new.inspect #=> "2008-03-08 19:43:39 +0900"
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| 51 | */
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| 52 | MRB_API mrb_value
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| 53 | mrb_obj_inspect(mrb_state *mrb, mrb_value obj)
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| 54 | {
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| 55 | if ((mrb_type(obj) == MRB_TT_OBJECT) && mrb_obj_basic_to_s_p(mrb, obj)) {
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| 56 | return mrb_obj_iv_inspect(mrb, mrb_obj_ptr(obj));
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| 57 | }
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| 58 | return mrb_any_to_s(mrb, obj);
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| 59 | }
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| 60 |
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| 61 | /* 15.3.1.3.1 */
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| 62 | /* 15.3.1.3.10 */
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| 63 | /* 15.3.1.3.11 */
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| 64 | /*
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| 65 | * call-seq:
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| 66 | * obj == other -> true or false
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| 67 | * obj.equal?(other) -> true or false
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| 68 | * obj.eql?(other) -> true or false
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| 69 | *
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| 70 | * Equality---At the <code>Object</code> level, <code>==</code> returns
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| 71 | * <code>true</code> only if <i>obj</i> and <i>other</i> are the
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| 72 | * same object. Typically, this method is overridden in descendant
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| 73 | * classes to provide class-specific meaning.
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| 74 | *
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| 75 | * Unlike <code>==</code>, the <code>equal?</code> method should never be
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| 76 | * overridden by subclasses: it is used to determine object identity
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| 77 | * (that is, <code>a.equal?(b)</code> iff <code>a</code> is the same
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| 78 | * object as <code>b</code>).
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| 79 | *
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| 80 | * The <code>eql?</code> method returns <code>true</code> if
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| 81 | * <i>obj</i> and <i>anObject</i> have the same value. Used by
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| 82 | * <code>Hash</code> to test members for equality. For objects of
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| 83 | * class <code>Object</code>, <code>eql?</code> is synonymous with
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| 84 | * <code>==</code>. Subclasses normally continue this tradition, but
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| 85 | * there are exceptions. <code>Numeric</code> types, for example,
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| 86 | * perform type conversion across <code>==</code>, but not across
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| 87 | * <code>eql?</code>, so:
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| 88 | *
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| 89 | * 1 == 1.0 #=> true
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| 90 | * 1.eql? 1.0 #=> false
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| 91 | */
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| 92 | static mrb_value
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| 93 | mrb_obj_equal_m(mrb_state *mrb, mrb_value self)
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| 94 | {
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| 95 | mrb_value arg;
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| 96 |
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| 97 | mrb_get_args(mrb, "o", &arg);
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| 98 | return mrb_bool_value(mrb_obj_equal(mrb, self, arg));
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| 99 | }
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| 100 |
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| 101 | static mrb_value
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| 102 | mrb_obj_not_equal_m(mrb_state *mrb, mrb_value self)
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| 103 | {
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| 104 | mrb_value arg;
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| 105 |
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| 106 | mrb_get_args(mrb, "o", &arg);
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| 107 | return mrb_bool_value(!mrb_equal(mrb, self, arg));
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| 108 | }
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| 109 |
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| 110 | /* 15.3.1.3.2 */
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| 111 | /*
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| 112 | * call-seq:
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| 113 | * obj === other -> true or false
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| 114 | *
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| 115 | * Case Equality---For class <code>Object</code>, effectively the same
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| 116 | * as calling <code>#==</code>, but typically overridden by descendants
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| 117 | * to provide meaningful semantics in <code>case</code> statements.
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| 118 | */
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| 119 | static mrb_value
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| 120 | mrb_equal_m(mrb_state *mrb, mrb_value self)
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| 121 | {
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| 122 | mrb_value arg;
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| 123 |
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| 124 | mrb_get_args(mrb, "o", &arg);
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| 125 | return mrb_bool_value(mrb_equal(mrb, self, arg));
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| 126 | }
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| 127 |
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| 128 | /* 15.3.1.3.3 */
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| 129 | /* 15.3.1.3.33 */
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| 130 | /*
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| 131 | * Document-method: __id__
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| 132 | * Document-method: object_id
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| 133 | *
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| 134 | * call-seq:
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| 135 | * obj.__id__ -> fixnum
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| 136 | * obj.object_id -> fixnum
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| 137 | *
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| 138 | * Returns an integer identifier for <i>obj</i>. The same number will
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| 139 | * be returned on all calls to <code>id</code> for a given object, and
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| 140 | * no two active objects will share an id.
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| 141 | * <code>Object#object_id</code> is a different concept from the
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| 142 | * <code>:name</code> notation, which returns the symbol id of
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| 143 | * <code>name</code>. Replaces the deprecated <code>Object#id</code>.
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| 144 | */
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| 145 | static mrb_value
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| 146 | mrb_obj_id_m(mrb_state *mrb, mrb_value self)
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| 147 | {
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| 148 | return mrb_fixnum_value(mrb_obj_id(self));
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| 149 | }
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| 150 |
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| 151 | /* 15.3.1.2.2 */
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| 152 | /* 15.3.1.2.5 */
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| 153 | /* 15.3.1.3.6 */
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| 154 | /* 15.3.1.3.25 */
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| 155 | /*
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| 156 | * call-seq:
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| 157 | * block_given? -> true or false
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| 158 | * iterator? -> true or false
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| 159 | *
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| 160 | * Returns <code>true</code> if <code>yield</code> would execute a
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| 161 | * block in the current context. The <code>iterator?</code> form
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| 162 | * is mildly deprecated.
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| 163 | *
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| 164 | * def try
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| 165 | * if block_given?
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| 166 | * yield
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| 167 | * else
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| 168 | * "no block"
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| 169 | * end
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| 170 | * end
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| 171 | * try #=> "no block"
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| 172 | * try { "hello" } #=> "hello"
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| 173 | * try do "hello" end #=> "hello"
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| 174 | */
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| 175 | static mrb_value
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| 176 | mrb_f_block_given_p_m(mrb_state *mrb, mrb_value self)
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| 177 | {
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| 178 | mrb_callinfo *ci = mrb->c->ci;
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| 179 | mrb_value *bp;
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| 180 | mrb_bool given_p;
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| 181 |
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| 182 | bp = ci->stackent + 1;
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| 183 | ci--;
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| 184 | if (ci <= mrb->c->cibase) {
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| 185 | given_p = FALSE;
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| 186 | }
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| 187 | else {
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| 188 | /* block_given? called within block; check upper scope */
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| 189 | if (ci->proc->env) {
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| 190 | struct REnv *e = ci->proc->env;
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| 191 | mrb_value *sp;
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| 192 |
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| 193 | while (e->c) {
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| 194 | e = (struct REnv*)e->c;
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| 195 | }
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| 196 | sp = e->stack;
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| 197 | if (sp) {
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| 198 | /* top-level does not have block slot (alway false) */
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| 199 | if (sp == mrb->c->stbase)
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| 200 | return mrb_false_value();
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| 201 | ci = mrb->c->cibase + e->cioff;
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| 202 | bp = ci[1].stackent + 1;
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| 203 | }
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| 204 | }
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| 205 | if (ci->argc > 0) {
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| 206 | bp += ci->argc;
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| 207 | }
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| 208 | given_p = !mrb_nil_p(*bp);
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| 209 | }
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| 210 |
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| 211 | return mrb_bool_value(given_p);
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| 212 | }
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| 213 |
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| 214 | /* 15.3.1.3.7 */
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| 215 | /*
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| 216 | * call-seq:
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| 217 | * obj.class -> class
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| 218 | *
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| 219 | * Returns the class of <i>obj</i>. This method must always be
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| 220 | * called with an explicit receiver, as <code>class</code> is also a
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| 221 | * reserved word in Ruby.
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| 222 | *
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| 223 | * 1.class #=> Fixnum
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| 224 | * self.class #=> Object
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| 225 | */
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| 226 | static mrb_value
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| 227 | mrb_obj_class_m(mrb_state *mrb, mrb_value self)
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| 228 | {
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| 229 | return mrb_obj_value(mrb_obj_class(mrb, self));
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| 230 | }
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| 231 |
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| 232 | static struct RClass*
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| 233 | mrb_singleton_class_clone(mrb_state *mrb, mrb_value obj)
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| 234 | {
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| 235 | struct RClass *klass = mrb_basic_ptr(obj)->c;
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| 236 |
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| 237 | if (klass->tt != MRB_TT_SCLASS)
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| 238 | return klass;
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| 239 | else {
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| 240 | /* copy singleton(unnamed) class */
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| 241 | struct RClass *clone = (struct RClass*)mrb_obj_alloc(mrb, klass->tt, mrb->class_class);
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| 242 |
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| 243 | if ((mrb_type(obj) == MRB_TT_CLASS) || (mrb_type(obj) == MRB_TT_SCLASS)) {
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| 244 | clone->c = clone;
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| 245 | }
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| 246 | else {
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| 247 | clone->c = mrb_singleton_class_clone(mrb, mrb_obj_value(klass));
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| 248 | }
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| 249 | clone->super = klass->super;
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| 250 | if (klass->iv) {
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| 251 | mrb_iv_copy(mrb, mrb_obj_value(clone), mrb_obj_value(klass));
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| 252 | mrb_obj_iv_set(mrb, (struct RObject*)clone, mrb_intern_lit(mrb, "__attached__"), obj);
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| 253 | }
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| 254 | if (klass->mt) {
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| 255 | clone->mt = kh_copy(mt, mrb, klass->mt);
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| 256 | }
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| 257 | else {
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| 258 | clone->mt = kh_init(mt, mrb);
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| 259 | }
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| 260 | clone->tt = MRB_TT_SCLASS;
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| 261 | return clone;
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| 262 | }
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| 263 | }
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| 264 |
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| 265 | static void
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| 266 | copy_class(mrb_state *mrb, mrb_value dst, mrb_value src)
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| 267 | {
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| 268 | struct RClass *dc = mrb_class_ptr(dst);
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| 269 | struct RClass *sc = mrb_class_ptr(src);
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| 270 | /* if the origin is not the same as the class, then the origin and
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| 271 | the current class need to be copied */
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| 272 | if (sc->flags & MRB_FLAG_IS_PREPENDED) {
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| 273 | struct RClass *c0 = sc->super;
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| 274 | struct RClass *c1 = dc;
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| 275 |
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| 276 | /* copy prepended iclasses */
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| 277 | while (!(c0->flags & MRB_FLAG_IS_ORIGIN)) {
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| 278 | c1->super = mrb_class_ptr(mrb_obj_dup(mrb, mrb_obj_value(c0)));
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| 279 | c1 = c1->super;
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| 280 | c0 = c0->super;
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| 281 | }
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| 282 | c1->super = mrb_class_ptr(mrb_obj_dup(mrb, mrb_obj_value(c0)));
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| 283 | c1->super->flags |= MRB_FLAG_IS_ORIGIN;
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| 284 | }
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| 285 | dc->mt = kh_copy(mt, mrb, sc->mt);
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| 286 | dc->super = sc->super;
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| 287 | }
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| 288 |
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| 289 | static void
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| 290 | init_copy(mrb_state *mrb, mrb_value dest, mrb_value obj)
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| 291 | {
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| 292 | switch (mrb_type(obj)) {
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| 293 | case MRB_TT_CLASS:
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| 294 | case MRB_TT_MODULE:
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| 295 | copy_class(mrb, dest, obj);
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| 296 | /* fall through */
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| 297 | case MRB_TT_OBJECT:
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| 298 | case MRB_TT_SCLASS:
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| 299 | case MRB_TT_HASH:
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| 300 | case MRB_TT_DATA:
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| 301 | case MRB_TT_EXCEPTION:
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| 302 | mrb_iv_copy(mrb, dest, obj);
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| 303 | break;
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| 304 |
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| 305 | default:
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| 306 | break;
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| 307 | }
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| 308 | mrb_funcall(mrb, dest, "initialize_copy", 1, obj);
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| 309 | }
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| 310 |
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| 311 | /* 15.3.1.3.8 */
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| 312 | /*
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| 313 | * call-seq:
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| 314 | * obj.clone -> an_object
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| 315 | *
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| 316 | * Produces a shallow copy of <i>obj</i>---the instance variables of
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| 317 | * <i>obj</i> are copied, but not the objects they reference. Copies
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| 318 | * the frozen state of <i>obj</i>. See also the discussion
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| 319 | * under <code>Object#dup</code>.
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| 320 | *
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| 321 | * class Klass
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| 322 | * attr_accessor :str
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| 323 | * end
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| 324 | * s1 = Klass.new #=> #<Klass:0x401b3a38>
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| 325 | * s1.str = "Hello" #=> "Hello"
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| 326 | * s2 = s1.clone #=> #<Klass:0x401b3998 @str="Hello">
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| 327 | * s2.str[1,4] = "i" #=> "i"
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| 328 | * s1.inspect #=> "#<Klass:0x401b3a38 @str=\"Hi\">"
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| 329 | * s2.inspect #=> "#<Klass:0x401b3998 @str=\"Hi\">"
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| 330 | *
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| 331 | * This method may have class-specific behavior. If so, that
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| 332 | * behavior will be documented under the #+initialize_copy+ method of
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| 333 | * the class.
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| 334 | *
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| 335 | * Some Class(True False Nil Symbol Fixnum Float) Object cannot clone.
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| 336 | */
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| 337 | MRB_API mrb_value
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| 338 | mrb_obj_clone(mrb_state *mrb, mrb_value self)
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| 339 | {
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| 340 | struct RObject *p;
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| 341 | mrb_value clone;
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| 342 |
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| 343 | if (mrb_immediate_p(self)) {
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| 344 | mrb_raisef(mrb, E_TYPE_ERROR, "can't clone %S", self);
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| 345 | }
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| 346 | if (mrb_type(self) == MRB_TT_SCLASS) {
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| 347 | mrb_raise(mrb, E_TYPE_ERROR, "can't clone singleton class");
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| 348 | }
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| 349 | p = (struct RObject*)mrb_obj_alloc(mrb, mrb_type(self), mrb_obj_class(mrb, self));
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| 350 | p->c = mrb_singleton_class_clone(mrb, self);
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| 351 | clone = mrb_obj_value(p);
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| 352 | init_copy(mrb, clone, self);
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| 353 |
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| 354 | return clone;
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| 355 | }
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| 356 |
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| 357 | /* 15.3.1.3.9 */
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| 358 | /*
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| 359 | * call-seq:
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| 360 | * obj.dup -> an_object
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| 361 | *
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| 362 | * Produces a shallow copy of <i>obj</i>---the instance variables of
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| 363 | * <i>obj</i> are copied, but not the objects they reference.
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| 364 | * <code>dup</code> copies the frozen state of <i>obj</i>. See also
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| 365 | * the discussion under <code>Object#clone</code>. In general,
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| 366 | * <code>clone</code> and <code>dup</code> may have different semantics
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| 367 | * in descendant classes. While <code>clone</code> is used to duplicate
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| 368 | * an object, including its internal state, <code>dup</code> typically
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| 369 | * uses the class of the descendant object to create the new instance.
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| 370 | *
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| 371 | * This method may have class-specific behavior. If so, that
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| 372 | * behavior will be documented under the #+initialize_copy+ method of
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| 373 | * the class.
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| 374 | */
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| 375 |
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| 376 | MRB_API mrb_value
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| 377 | mrb_obj_dup(mrb_state *mrb, mrb_value obj)
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| 378 | {
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| 379 | struct RBasic *p;
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| 380 | mrb_value dup;
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| 381 |
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| 382 | if (mrb_immediate_p(obj)) {
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| 383 | mrb_raisef(mrb, E_TYPE_ERROR, "can't dup %S", obj);
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| 384 | }
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| 385 | if (mrb_type(obj) == MRB_TT_SCLASS) {
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| 386 | mrb_raise(mrb, E_TYPE_ERROR, "can't dup singleton class");
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| 387 | }
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| 388 | p = mrb_obj_alloc(mrb, mrb_type(obj), mrb_obj_class(mrb, obj));
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| 389 | dup = mrb_obj_value(p);
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| 390 | init_copy(mrb, dup, obj);
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| 391 |
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| 392 | return dup;
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| 393 | }
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| 394 |
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| 395 | static mrb_value
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| 396 | mrb_obj_extend(mrb_state *mrb, mrb_int argc, mrb_value *argv, mrb_value obj)
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| 397 | {
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| 398 | mrb_int i;
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| 399 |
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| 400 | if (argc == 0) {
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| 401 | mrb_raise(mrb, E_ARGUMENT_ERROR, "wrong number of arguments (at least 1)");
|
---|
| 402 | }
|
---|
| 403 | for (i = 0; i < argc; i++) {
|
---|
| 404 | mrb_check_type(mrb, argv[i], MRB_TT_MODULE);
|
---|
| 405 | }
|
---|
| 406 | while (argc--) {
|
---|
| 407 | mrb_funcall(mrb, argv[argc], "extend_object", 1, obj);
|
---|
| 408 | mrb_funcall(mrb, argv[argc], "extended", 1, obj);
|
---|
| 409 | }
|
---|
| 410 | return obj;
|
---|
| 411 | }
|
---|
| 412 |
|
---|
| 413 | /* 15.3.1.3.13 */
|
---|
| 414 | /*
|
---|
| 415 | * call-seq:
|
---|
| 416 | * obj.extend(module, ...) -> obj
|
---|
| 417 | *
|
---|
| 418 | * Adds to _obj_ the instance methods from each module given as a
|
---|
| 419 | * parameter.
|
---|
| 420 | *
|
---|
| 421 | * module Mod
|
---|
| 422 | * def hello
|
---|
| 423 | * "Hello from Mod.\n"
|
---|
| 424 | * end
|
---|
| 425 | * end
|
---|
| 426 | *
|
---|
| 427 | * class Klass
|
---|
| 428 | * def hello
|
---|
| 429 | * "Hello from Klass.\n"
|
---|
| 430 | * end
|
---|
| 431 | * end
|
---|
| 432 | *
|
---|
| 433 | * k = Klass.new
|
---|
| 434 | * k.hello #=> "Hello from Klass.\n"
|
---|
| 435 | * k.extend(Mod) #=> #<Klass:0x401b3bc8>
|
---|
| 436 | * k.hello #=> "Hello from Mod.\n"
|
---|
| 437 | */
|
---|
| 438 | static mrb_value
|
---|
| 439 | mrb_obj_extend_m(mrb_state *mrb, mrb_value self)
|
---|
| 440 | {
|
---|
| 441 | mrb_value *argv;
|
---|
| 442 | mrb_int argc;
|
---|
| 443 |
|
---|
| 444 | mrb_get_args(mrb, "*", &argv, &argc);
|
---|
| 445 | return mrb_obj_extend(mrb, argc, argv, self);
|
---|
| 446 | }
|
---|
| 447 |
|
---|
| 448 | /* 15.3.1.3.15 */
|
---|
| 449 | /*
|
---|
| 450 | * call-seq:
|
---|
| 451 | * obj.hash -> fixnum
|
---|
| 452 | *
|
---|
| 453 | * Generates a <code>Fixnum</code> hash value for this object. This
|
---|
| 454 | * function must have the property that <code>a.eql?(b)</code> implies
|
---|
| 455 | * <code>a.hash == b.hash</code>. The hash value is used by class
|
---|
| 456 | * <code>Hash</code>. Any hash value that exceeds the capacity of a
|
---|
| 457 | * <code>Fixnum</code> will be truncated before being used.
|
---|
| 458 | */
|
---|
| 459 | MRB_API mrb_value
|
---|
| 460 | mrb_obj_hash(mrb_state *mrb, mrb_value self)
|
---|
| 461 | {
|
---|
| 462 | return mrb_fixnum_value(mrb_obj_id(self));
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | /* 15.3.1.3.16 */
|
---|
| 466 | static mrb_value
|
---|
| 467 | mrb_obj_init_copy(mrb_state *mrb, mrb_value self)
|
---|
| 468 | {
|
---|
| 469 | mrb_value orig;
|
---|
| 470 |
|
---|
| 471 | mrb_get_args(mrb, "o", &orig);
|
---|
| 472 | if (mrb_obj_equal(mrb, self, orig)) return self;
|
---|
| 473 | if ((mrb_type(self) != mrb_type(orig)) || (mrb_obj_class(mrb, self) != mrb_obj_class(mrb, orig))) {
|
---|
| 474 | mrb_raise(mrb, E_TYPE_ERROR, "initialize_copy should take same class object");
|
---|
| 475 | }
|
---|
| 476 | return self;
|
---|
| 477 | }
|
---|
| 478 |
|
---|
| 479 |
|
---|
| 480 | /* implementation of instance_eval */
|
---|
| 481 | mrb_value mrb_obj_instance_eval(mrb_state*, mrb_value);
|
---|
| 482 |
|
---|
| 483 | MRB_API mrb_bool
|
---|
| 484 | mrb_obj_is_instance_of(mrb_state *mrb, mrb_value obj, struct RClass* c)
|
---|
| 485 | {
|
---|
| 486 | if (mrb_obj_class(mrb, obj) == c) return TRUE;
|
---|
| 487 | return FALSE;
|
---|
| 488 | }
|
---|
| 489 |
|
---|
| 490 | /* 15.3.1.3.19 */
|
---|
| 491 | /*
|
---|
| 492 | * call-seq:
|
---|
| 493 | * obj.instance_of?(class) -> true or false
|
---|
| 494 | *
|
---|
| 495 | * Returns <code>true</code> if <i>obj</i> is an instance of the given
|
---|
| 496 | * class. See also <code>Object#kind_of?</code>.
|
---|
| 497 | */
|
---|
| 498 | static mrb_value
|
---|
| 499 | obj_is_instance_of(mrb_state *mrb, mrb_value self)
|
---|
| 500 | {
|
---|
| 501 | mrb_value arg;
|
---|
| 502 |
|
---|
| 503 | mrb_get_args(mrb, "C", &arg);
|
---|
| 504 |
|
---|
| 505 | return mrb_bool_value(mrb_obj_is_instance_of(mrb, self, mrb_class_ptr(arg)));
|
---|
| 506 | }
|
---|
| 507 |
|
---|
| 508 | /* 15.3.1.3.20 */
|
---|
| 509 | /*
|
---|
| 510 | * call-seq:
|
---|
| 511 | * obj.instance_variable_defined?(symbol) -> true or false
|
---|
| 512 | *
|
---|
| 513 | * Returns <code>true</code> if the given instance variable is
|
---|
| 514 | * defined in <i>obj</i>.
|
---|
| 515 | *
|
---|
| 516 | * class Fred
|
---|
| 517 | * def initialize(p1, p2)
|
---|
| 518 | * @a, @b = p1, p2
|
---|
| 519 | * end
|
---|
| 520 | * end
|
---|
| 521 | * fred = Fred.new('cat', 99)
|
---|
| 522 | * fred.instance_variable_defined?(:@a) #=> true
|
---|
| 523 | * fred.instance_variable_defined?("@b") #=> true
|
---|
| 524 | * fred.instance_variable_defined?("@c") #=> false
|
---|
| 525 | */
|
---|
| 526 | static mrb_value
|
---|
| 527 | mrb_obj_ivar_defined(mrb_state *mrb, mrb_value self)
|
---|
| 528 | {
|
---|
| 529 | mrb_sym sym;
|
---|
| 530 |
|
---|
| 531 | mrb_get_args(mrb, "n", &sym);
|
---|
| 532 | mrb_iv_check(mrb, sym);
|
---|
| 533 | return mrb_bool_value(mrb_iv_defined(mrb, self, sym));
|
---|
| 534 | }
|
---|
| 535 |
|
---|
| 536 | /* 15.3.1.3.21 */
|
---|
| 537 | /*
|
---|
| 538 | * call-seq:
|
---|
| 539 | * obj.instance_variable_get(symbol) -> obj
|
---|
| 540 | *
|
---|
| 541 | * Returns the value of the given instance variable, or nil if the
|
---|
| 542 | * instance variable is not set. The <code>@</code> part of the
|
---|
| 543 | * variable name should be included for regular instance
|
---|
| 544 | * variables. Throws a <code>NameError</code> exception if the
|
---|
| 545 | * supplied symbol is not valid as an instance variable name.
|
---|
| 546 | *
|
---|
| 547 | * class Fred
|
---|
| 548 | * def initialize(p1, p2)
|
---|
| 549 | * @a, @b = p1, p2
|
---|
| 550 | * end
|
---|
| 551 | * end
|
---|
| 552 | * fred = Fred.new('cat', 99)
|
---|
| 553 | * fred.instance_variable_get(:@a) #=> "cat"
|
---|
| 554 | * fred.instance_variable_get("@b") #=> 99
|
---|
| 555 | */
|
---|
| 556 | static mrb_value
|
---|
| 557 | mrb_obj_ivar_get(mrb_state *mrb, mrb_value self)
|
---|
| 558 | {
|
---|
| 559 | mrb_sym iv_name;
|
---|
| 560 |
|
---|
| 561 | mrb_get_args(mrb, "n", &iv_name);
|
---|
| 562 | mrb_iv_check(mrb, iv_name);
|
---|
| 563 | return mrb_iv_get(mrb, self, iv_name);
|
---|
| 564 | }
|
---|
| 565 |
|
---|
| 566 | /* 15.3.1.3.22 */
|
---|
| 567 | /*
|
---|
| 568 | * call-seq:
|
---|
| 569 | * obj.instance_variable_set(symbol, obj) -> obj
|
---|
| 570 | *
|
---|
| 571 | * Sets the instance variable names by <i>symbol</i> to
|
---|
| 572 | * <i>object</i>, thereby frustrating the efforts of the class's
|
---|
| 573 | * author to attempt to provide proper encapsulation. The variable
|
---|
| 574 | * did not have to exist prior to this call.
|
---|
| 575 | *
|
---|
| 576 | * class Fred
|
---|
| 577 | * def initialize(p1, p2)
|
---|
| 578 | * @a, @b = p1, p2
|
---|
| 579 | * end
|
---|
| 580 | * end
|
---|
| 581 | * fred = Fred.new('cat', 99)
|
---|
| 582 | * fred.instance_variable_set(:@a, 'dog') #=> "dog"
|
---|
| 583 | * fred.instance_variable_set(:@c, 'cat') #=> "cat"
|
---|
| 584 | * fred.inspect #=> "#<Fred:0x401b3da8 @a=\"dog\", @b=99, @c=\"cat\">"
|
---|
| 585 | */
|
---|
| 586 | static mrb_value
|
---|
| 587 | mrb_obj_ivar_set(mrb_state *mrb, mrb_value self)
|
---|
| 588 | {
|
---|
| 589 | mrb_sym iv_name;
|
---|
| 590 | mrb_value val;
|
---|
| 591 |
|
---|
| 592 | mrb_get_args(mrb, "no", &iv_name, &val);
|
---|
| 593 | mrb_iv_check(mrb, iv_name);
|
---|
| 594 | mrb_iv_set(mrb, self, iv_name, val);
|
---|
| 595 | return val;
|
---|
| 596 | }
|
---|
| 597 |
|
---|
| 598 | /* 15.3.1.3.24 */
|
---|
| 599 | /* 15.3.1.3.26 */
|
---|
| 600 | /*
|
---|
| 601 | * call-seq:
|
---|
| 602 | * obj.is_a?(class) -> true or false
|
---|
| 603 | * obj.kind_of?(class) -> true or false
|
---|
| 604 | *
|
---|
| 605 | * Returns <code>true</code> if <i>class</i> is the class of
|
---|
| 606 | * <i>obj</i>, or if <i>class</i> is one of the superclasses of
|
---|
| 607 | * <i>obj</i> or modules included in <i>obj</i>.
|
---|
| 608 | *
|
---|
| 609 | * module M; end
|
---|
| 610 | * class A
|
---|
| 611 | * include M
|
---|
| 612 | * end
|
---|
| 613 | * class B < A; end
|
---|
| 614 | * class C < B; end
|
---|
| 615 | * b = B.new
|
---|
| 616 | * b.instance_of? A #=> false
|
---|
| 617 | * b.instance_of? B #=> true
|
---|
| 618 | * b.instance_of? C #=> false
|
---|
| 619 | * b.instance_of? M #=> false
|
---|
| 620 | * b.kind_of? A #=> true
|
---|
| 621 | * b.kind_of? B #=> true
|
---|
| 622 | * b.kind_of? C #=> false
|
---|
| 623 | * b.kind_of? M #=> true
|
---|
| 624 | */
|
---|
| 625 | static mrb_value
|
---|
| 626 | mrb_obj_is_kind_of_m(mrb_state *mrb, mrb_value self)
|
---|
| 627 | {
|
---|
| 628 | mrb_value arg;
|
---|
| 629 |
|
---|
| 630 | mrb_get_args(mrb, "C", &arg);
|
---|
| 631 |
|
---|
| 632 | return mrb_bool_value(mrb_obj_is_kind_of(mrb, self, mrb_class_ptr(arg)));
|
---|
| 633 | }
|
---|
| 634 |
|
---|
| 635 | KHASH_DECLARE(st, mrb_sym, char, FALSE)
|
---|
| 636 | KHASH_DEFINE(st, mrb_sym, char, FALSE, kh_int_hash_func, kh_int_hash_equal)
|
---|
| 637 |
|
---|
| 638 | static void
|
---|
| 639 | method_entry_loop(mrb_state *mrb, struct RClass* klass, khash_t(st)* set)
|
---|
| 640 | {
|
---|
| 641 | khint_t i;
|
---|
| 642 |
|
---|
| 643 | khash_t(mt) *h = klass->mt;
|
---|
| 644 | if (!h) return;
|
---|
| 645 | for (i=0;i<kh_end(h);i++) {
|
---|
| 646 | if (kh_exist(h, i) && kh_value(h, i)) {
|
---|
| 647 | kh_put(st, mrb, set, kh_key(h, i));
|
---|
| 648 | }
|
---|
| 649 | }
|
---|
| 650 | }
|
---|
| 651 |
|
---|
| 652 | mrb_value
|
---|
| 653 | mrb_class_instance_method_list(mrb_state *mrb, mrb_bool recur, struct RClass* klass, int obj)
|
---|
| 654 | {
|
---|
| 655 | khint_t i;
|
---|
| 656 | mrb_value ary;
|
---|
| 657 | mrb_bool prepended = FALSE;
|
---|
| 658 | struct RClass* oldklass;
|
---|
| 659 | khash_t(st)* set = kh_init(st, mrb);
|
---|
| 660 |
|
---|
| 661 | if (!recur && (klass->flags & MRB_FLAG_IS_PREPENDED)) {
|
---|
| 662 | MRB_CLASS_ORIGIN(klass);
|
---|
| 663 | prepended = TRUE;
|
---|
| 664 | }
|
---|
| 665 |
|
---|
| 666 | oldklass = 0;
|
---|
| 667 | while (klass && (klass != oldklass)) {
|
---|
| 668 | method_entry_loop(mrb, klass, set);
|
---|
| 669 | if ((klass->tt == MRB_TT_ICLASS && !prepended) ||
|
---|
| 670 | (klass->tt == MRB_TT_SCLASS)) {
|
---|
| 671 | }
|
---|
| 672 | else {
|
---|
| 673 | if (!recur) break;
|
---|
| 674 | }
|
---|
| 675 | oldklass = klass;
|
---|
| 676 | klass = klass->super;
|
---|
| 677 | }
|
---|
| 678 |
|
---|
| 679 | ary = mrb_ary_new(mrb);
|
---|
| 680 | for (i=0;i<kh_end(set);i++) {
|
---|
| 681 | if (kh_exist(set, i)) {
|
---|
| 682 | mrb_ary_push(mrb, ary, mrb_symbol_value(kh_key(set, i)));
|
---|
| 683 | }
|
---|
| 684 | }
|
---|
| 685 | kh_destroy(st, mrb, set);
|
---|
| 686 |
|
---|
| 687 | return ary;
|
---|
| 688 | }
|
---|
| 689 |
|
---|
| 690 | static mrb_value
|
---|
| 691 | mrb_obj_singleton_methods(mrb_state *mrb, mrb_bool recur, mrb_value obj)
|
---|
| 692 | {
|
---|
| 693 | khint_t i;
|
---|
| 694 | mrb_value ary;
|
---|
| 695 | struct RClass* klass;
|
---|
| 696 | khash_t(st)* set = kh_init(st, mrb);
|
---|
| 697 |
|
---|
| 698 | klass = mrb_class(mrb, obj);
|
---|
| 699 |
|
---|
| 700 | if (klass && (klass->tt == MRB_TT_SCLASS)) {
|
---|
| 701 | method_entry_loop(mrb, klass, set);
|
---|
| 702 | klass = klass->super;
|
---|
| 703 | }
|
---|
| 704 | if (recur) {
|
---|
| 705 | while (klass && ((klass->tt == MRB_TT_SCLASS) || (klass->tt == MRB_TT_ICLASS))) {
|
---|
| 706 | method_entry_loop(mrb, klass, set);
|
---|
| 707 | klass = klass->super;
|
---|
| 708 | }
|
---|
| 709 | }
|
---|
| 710 |
|
---|
| 711 | ary = mrb_ary_new(mrb);
|
---|
| 712 | for (i=0;i<kh_end(set);i++) {
|
---|
| 713 | if (kh_exist(set, i)) {
|
---|
| 714 | mrb_ary_push(mrb, ary, mrb_symbol_value(kh_key(set, i)));
|
---|
| 715 | }
|
---|
| 716 | }
|
---|
| 717 | kh_destroy(st, mrb, set);
|
---|
| 718 |
|
---|
| 719 | return ary;
|
---|
| 720 | }
|
---|
| 721 |
|
---|
| 722 | static mrb_value
|
---|
| 723 | mrb_obj_methods(mrb_state *mrb, mrb_bool recur, mrb_value obj, mrb_method_flag_t flag)
|
---|
| 724 | {
|
---|
| 725 | if (recur)
|
---|
| 726 | return mrb_class_instance_method_list(mrb, recur, mrb_class(mrb, obj), 0);
|
---|
| 727 | return mrb_obj_singleton_methods(mrb, recur, obj);
|
---|
| 728 | }
|
---|
| 729 | /* 15.3.1.3.31 */
|
---|
| 730 | /*
|
---|
| 731 | * call-seq:
|
---|
| 732 | * obj.methods -> array
|
---|
| 733 | *
|
---|
| 734 | * Returns a list of the names of methods publicly accessible in
|
---|
| 735 | * <i>obj</i>. This will include all the methods accessible in
|
---|
| 736 | * <i>obj</i>'s ancestors.
|
---|
| 737 | *
|
---|
| 738 | * class Klass
|
---|
| 739 | * def kMethod()
|
---|
| 740 | * end
|
---|
| 741 | * end
|
---|
| 742 | * k = Klass.new
|
---|
| 743 | * k.methods[0..9] #=> [:kMethod, :respond_to?, :nil?, :is_a?,
|
---|
| 744 | * # :class, :instance_variable_set,
|
---|
| 745 | * # :methods, :extend, :__send__, :instance_eval]
|
---|
| 746 | * k.methods.length #=> 42
|
---|
| 747 | */
|
---|
| 748 | static mrb_value
|
---|
| 749 | mrb_obj_methods_m(mrb_state *mrb, mrb_value self)
|
---|
| 750 | {
|
---|
| 751 | mrb_bool recur = TRUE;
|
---|
| 752 | mrb_get_args(mrb, "|b", &recur);
|
---|
| 753 | return mrb_obj_methods(mrb, recur, self, (mrb_method_flag_t)0); /* everything but private */
|
---|
| 754 | }
|
---|
| 755 |
|
---|
| 756 | /* 15.3.1.3.32 */
|
---|
| 757 | /*
|
---|
| 758 | * call_seq:
|
---|
| 759 | * nil.nil? -> true
|
---|
| 760 | * <anything_else>.nil? -> false
|
---|
| 761 | *
|
---|
| 762 | * Only the object <i>nil</i> responds <code>true</code> to <code>nil?</code>.
|
---|
| 763 | */
|
---|
| 764 | static mrb_value
|
---|
| 765 | mrb_false(mrb_state *mrb, mrb_value self)
|
---|
| 766 | {
|
---|
| 767 | return mrb_false_value();
|
---|
| 768 | }
|
---|
| 769 |
|
---|
| 770 | /* 15.3.1.3.36 */
|
---|
| 771 | /*
|
---|
| 772 | * call-seq:
|
---|
| 773 | * obj.private_methods(all=true) -> array
|
---|
| 774 | *
|
---|
| 775 | * Returns the list of private methods accessible to <i>obj</i>. If
|
---|
| 776 | * the <i>all</i> parameter is set to <code>false</code>, only those methods
|
---|
| 777 | * in the receiver will be listed.
|
---|
| 778 | */
|
---|
| 779 | static mrb_value
|
---|
| 780 | mrb_obj_private_methods(mrb_state *mrb, mrb_value self)
|
---|
| 781 | {
|
---|
| 782 | mrb_bool recur = TRUE;
|
---|
| 783 | mrb_get_args(mrb, "|b", &recur);
|
---|
| 784 | return mrb_obj_methods(mrb, recur, self, NOEX_PRIVATE); /* private attribute not define */
|
---|
| 785 | }
|
---|
| 786 |
|
---|
| 787 | /* 15.3.1.3.37 */
|
---|
| 788 | /*
|
---|
| 789 | * call-seq:
|
---|
| 790 | * obj.protected_methods(all=true) -> array
|
---|
| 791 | *
|
---|
| 792 | * Returns the list of protected methods accessible to <i>obj</i>. If
|
---|
| 793 | * the <i>all</i> parameter is set to <code>false</code>, only those methods
|
---|
| 794 | * in the receiver will be listed.
|
---|
| 795 | */
|
---|
| 796 | static mrb_value
|
---|
| 797 | mrb_obj_protected_methods(mrb_state *mrb, mrb_value self)
|
---|
| 798 | {
|
---|
| 799 | mrb_bool recur = TRUE;
|
---|
| 800 | mrb_get_args(mrb, "|b", &recur);
|
---|
| 801 | return mrb_obj_methods(mrb, recur, self, NOEX_PROTECTED); /* protected attribute not define */
|
---|
| 802 | }
|
---|
| 803 |
|
---|
| 804 | /* 15.3.1.3.38 */
|
---|
| 805 | /*
|
---|
| 806 | * call-seq:
|
---|
| 807 | * obj.public_methods(all=true) -> array
|
---|
| 808 | *
|
---|
| 809 | * Returns the list of public methods accessible to <i>obj</i>. If
|
---|
| 810 | * the <i>all</i> parameter is set to <code>false</code>, only those methods
|
---|
| 811 | * in the receiver will be listed.
|
---|
| 812 | */
|
---|
| 813 | static mrb_value
|
---|
| 814 | mrb_obj_public_methods(mrb_state *mrb, mrb_value self)
|
---|
| 815 | {
|
---|
| 816 | mrb_bool recur = TRUE;
|
---|
| 817 | mrb_get_args(mrb, "|b", &recur);
|
---|
| 818 | return mrb_obj_methods(mrb, recur, self, NOEX_PUBLIC); /* public attribute not define */
|
---|
| 819 | }
|
---|
| 820 |
|
---|
| 821 | /* 15.3.1.2.12 */
|
---|
| 822 | /* 15.3.1.3.40 */
|
---|
| 823 | /*
|
---|
| 824 | * call-seq:
|
---|
| 825 | * raise
|
---|
| 826 | * raise(string)
|
---|
| 827 | * raise(exception [, string])
|
---|
| 828 | *
|
---|
| 829 | * With no arguments, raises a <code>RuntimeError</code>
|
---|
| 830 | * With a single +String+ argument, raises a
|
---|
| 831 | * +RuntimeError+ with the string as a message. Otherwise,
|
---|
| 832 | * the first parameter should be the name of an +Exception+
|
---|
| 833 | * class (or an object that returns an +Exception+ object when sent
|
---|
| 834 | * an +exception+ message). The optional second parameter sets the
|
---|
| 835 | * message associated with the exception, and the third parameter is an
|
---|
| 836 | * array of callback information. Exceptions are caught by the
|
---|
| 837 | * +rescue+ clause of <code>begin...end</code> blocks.
|
---|
| 838 | *
|
---|
| 839 | * raise "Failed to create socket"
|
---|
| 840 | * raise ArgumentError, "No parameters", caller
|
---|
| 841 | */
|
---|
| 842 | MRB_API mrb_value
|
---|
| 843 | mrb_f_raise(mrb_state *mrb, mrb_value self)
|
---|
| 844 | {
|
---|
| 845 | mrb_value a[2], exc;
|
---|
| 846 | int argc;
|
---|
| 847 |
|
---|
| 848 |
|
---|
| 849 | argc = mrb_get_args(mrb, "|oo", &a[0], &a[1]);
|
---|
| 850 | switch (argc) {
|
---|
| 851 | case 0:
|
---|
| 852 | mrb_raise(mrb, E_RUNTIME_ERROR, "");
|
---|
| 853 | break;
|
---|
| 854 | case 1:
|
---|
| 855 | a[1] = mrb_check_string_type(mrb, a[0]);
|
---|
| 856 | if (!mrb_nil_p(a[1])) {
|
---|
| 857 | argc = 2;
|
---|
| 858 | a[0] = mrb_obj_value(E_RUNTIME_ERROR);
|
---|
| 859 | }
|
---|
| 860 | /* fall through */
|
---|
| 861 | default:
|
---|
| 862 | exc = mrb_make_exception(mrb, argc, a);
|
---|
| 863 | mrb_obj_iv_set(mrb, mrb_obj_ptr(exc), mrb_intern_lit(mrb, "lastpc"), mrb_cptr_value(mrb, mrb->c->ci->pc));
|
---|
| 864 | mrb_exc_raise(mrb, exc);
|
---|
| 865 | break;
|
---|
| 866 | }
|
---|
| 867 | return mrb_nil_value(); /* not reached */
|
---|
| 868 | }
|
---|
| 869 |
|
---|
| 870 | /* 15.3.1.3.41 */
|
---|
| 871 | /*
|
---|
| 872 | * call-seq:
|
---|
| 873 | * obj.remove_instance_variable(symbol) -> obj
|
---|
| 874 | *
|
---|
| 875 | * Removes the named instance variable from <i>obj</i>, returning that
|
---|
| 876 | * variable's value.
|
---|
| 877 | *
|
---|
| 878 | * class Dummy
|
---|
| 879 | * attr_reader :var
|
---|
| 880 | * def initialize
|
---|
| 881 | * @var = 99
|
---|
| 882 | * end
|
---|
| 883 | * def remove
|
---|
| 884 | * remove_instance_variable(:@var)
|
---|
| 885 | * end
|
---|
| 886 | * end
|
---|
| 887 | * d = Dummy.new
|
---|
| 888 | * d.var #=> 99
|
---|
| 889 | * d.remove #=> 99
|
---|
| 890 | * d.var #=> nil
|
---|
| 891 | */
|
---|
| 892 | static mrb_value
|
---|
| 893 | mrb_obj_remove_instance_variable(mrb_state *mrb, mrb_value self)
|
---|
| 894 | {
|
---|
| 895 | mrb_sym sym;
|
---|
| 896 | mrb_value val;
|
---|
| 897 |
|
---|
| 898 | mrb_get_args(mrb, "n", &sym);
|
---|
| 899 | mrb_iv_check(mrb, sym);
|
---|
| 900 | val = mrb_iv_remove(mrb, self, sym);
|
---|
| 901 | if (mrb_undef_p(val)) {
|
---|
| 902 | mrb_name_error(mrb, sym, "instance variable %S not defined", mrb_sym2str(mrb, sym));
|
---|
| 903 | }
|
---|
| 904 | return val;
|
---|
| 905 | }
|
---|
| 906 |
|
---|
| 907 | static inline mrb_bool
|
---|
| 908 | basic_obj_respond_to(mrb_state *mrb, mrb_value obj, mrb_sym id, int pub)
|
---|
| 909 | {
|
---|
| 910 | return mrb_respond_to(mrb, obj, id);
|
---|
| 911 | }
|
---|
| 912 | /* 15.3.1.3.43 */
|
---|
| 913 | /*
|
---|
| 914 | * call-seq:
|
---|
| 915 | * obj.respond_to?(symbol, include_private=false) -> true or false
|
---|
| 916 | *
|
---|
| 917 | * Returns +true+ if _obj_ responds to the given
|
---|
| 918 | * method. Private methods are included in the search only if the
|
---|
| 919 | * optional second parameter evaluates to +true+.
|
---|
| 920 | *
|
---|
| 921 | * If the method is not implemented,
|
---|
| 922 | * as Process.fork on Windows, File.lchmod on GNU/Linux, etc.,
|
---|
| 923 | * false is returned.
|
---|
| 924 | *
|
---|
| 925 | * If the method is not defined, <code>respond_to_missing?</code>
|
---|
| 926 | * method is called and the result is returned.
|
---|
| 927 | */
|
---|
| 928 | static mrb_value
|
---|
| 929 | obj_respond_to(mrb_state *mrb, mrb_value self)
|
---|
| 930 | {
|
---|
| 931 | mrb_value mid;
|
---|
| 932 | mrb_sym id, rtm_id;
|
---|
| 933 | mrb_bool priv = FALSE, respond_to_p = TRUE;
|
---|
| 934 |
|
---|
| 935 | mrb_get_args(mrb, "o|b", &mid, &priv);
|
---|
| 936 |
|
---|
| 937 | if (mrb_symbol_p(mid)) {
|
---|
| 938 | id = mrb_symbol(mid);
|
---|
| 939 | }
|
---|
| 940 | else {
|
---|
| 941 | mrb_value tmp;
|
---|
| 942 | if (!mrb_string_p(mid)) {
|
---|
| 943 | tmp = mrb_check_string_type(mrb, mid);
|
---|
| 944 | if (mrb_nil_p(tmp)) {
|
---|
| 945 | tmp = mrb_inspect(mrb, mid);
|
---|
| 946 | mrb_raisef(mrb, E_TYPE_ERROR, "%S is not a symbol", tmp);
|
---|
| 947 | }
|
---|
| 948 | }
|
---|
| 949 | tmp = mrb_check_intern_str(mrb, mid);
|
---|
| 950 | if (mrb_nil_p(tmp)) {
|
---|
| 951 | respond_to_p = FALSE;
|
---|
| 952 | }
|
---|
| 953 | else {
|
---|
| 954 | id = mrb_symbol(tmp);
|
---|
| 955 | }
|
---|
| 956 | }
|
---|
| 957 |
|
---|
| 958 | if (respond_to_p) {
|
---|
| 959 | respond_to_p = basic_obj_respond_to(mrb, self, id, !priv);
|
---|
| 960 | }
|
---|
| 961 |
|
---|
| 962 | if (!respond_to_p) {
|
---|
| 963 | rtm_id = mrb_intern_lit(mrb, "respond_to_missing?");
|
---|
| 964 | if (basic_obj_respond_to(mrb, self, rtm_id, !priv)) {
|
---|
| 965 | mrb_value args[2];
|
---|
| 966 | args[0] = mid;
|
---|
| 967 | args[1] = mrb_bool_value(priv);
|
---|
| 968 | return mrb_funcall_argv(mrb, self, rtm_id, 2, args);
|
---|
| 969 | }
|
---|
| 970 | }
|
---|
| 971 | return mrb_bool_value(respond_to_p);
|
---|
| 972 | }
|
---|
| 973 |
|
---|
| 974 | /* 15.3.1.3.45 */
|
---|
| 975 | /*
|
---|
| 976 | * call-seq:
|
---|
| 977 | * obj.singleton_methods(all=true) -> array
|
---|
| 978 | *
|
---|
| 979 | * Returns an array of the names of singleton methods for <i>obj</i>.
|
---|
| 980 | * If the optional <i>all</i> parameter is true, the list will include
|
---|
| 981 | * methods in modules included in <i>obj</i>.
|
---|
| 982 | * Only public and protected singleton methods are returned.
|
---|
| 983 | *
|
---|
| 984 | * module Other
|
---|
| 985 | * def three() end
|
---|
| 986 | * end
|
---|
| 987 | *
|
---|
| 988 | * class Single
|
---|
| 989 | * def Single.four() end
|
---|
| 990 | * end
|
---|
| 991 | *
|
---|
| 992 | * a = Single.new
|
---|
| 993 | *
|
---|
| 994 | * def a.one()
|
---|
| 995 | * end
|
---|
| 996 | *
|
---|
| 997 | * class << a
|
---|
| 998 | * include Other
|
---|
| 999 | * def two()
|
---|
| 1000 | * end
|
---|
| 1001 | * end
|
---|
| 1002 | *
|
---|
| 1003 | * Single.singleton_methods #=> [:four]
|
---|
| 1004 | * a.singleton_methods(false) #=> [:two, :one]
|
---|
| 1005 | * a.singleton_methods #=> [:two, :one, :three]
|
---|
| 1006 | */
|
---|
| 1007 | static mrb_value
|
---|
| 1008 | mrb_obj_singleton_methods_m(mrb_state *mrb, mrb_value self)
|
---|
| 1009 | {
|
---|
| 1010 | mrb_bool recur = TRUE;
|
---|
| 1011 | mrb_get_args(mrb, "|b", &recur);
|
---|
| 1012 | return mrb_obj_singleton_methods(mrb, recur, self);
|
---|
| 1013 | }
|
---|
| 1014 |
|
---|
| 1015 | static mrb_value
|
---|
| 1016 | mod_define_singleton_method(mrb_state *mrb, mrb_value self)
|
---|
| 1017 | {
|
---|
| 1018 | struct RProc *p;
|
---|
| 1019 | mrb_sym mid;
|
---|
| 1020 | mrb_value blk = mrb_nil_value();
|
---|
| 1021 |
|
---|
| 1022 | mrb_get_args(mrb, "n&", &mid, &blk);
|
---|
| 1023 | if (mrb_nil_p(blk)) {
|
---|
| 1024 | mrb_raise(mrb, E_ARGUMENT_ERROR, "no block given");
|
---|
| 1025 | }
|
---|
| 1026 | p = (struct RProc*)mrb_obj_alloc(mrb, MRB_TT_PROC, mrb->proc_class);
|
---|
| 1027 | mrb_proc_copy(p, mrb_proc_ptr(blk));
|
---|
| 1028 | p->flags |= MRB_PROC_STRICT;
|
---|
| 1029 | mrb_define_method_raw(mrb, mrb_class_ptr(mrb_singleton_class(mrb, self)), mid, p);
|
---|
| 1030 | return mrb_symbol_value(mid);
|
---|
| 1031 | }
|
---|
| 1032 |
|
---|
| 1033 | static mrb_value
|
---|
| 1034 | mrb_obj_ceqq(mrb_state *mrb, mrb_value self)
|
---|
| 1035 | {
|
---|
| 1036 | mrb_value v;
|
---|
| 1037 | mrb_int i, len;
|
---|
| 1038 | mrb_sym eqq = mrb_intern_lit(mrb, "===");
|
---|
| 1039 | mrb_value ary = mrb_ary_splat(mrb, self);
|
---|
| 1040 |
|
---|
| 1041 | mrb_get_args(mrb, "o", &v);
|
---|
| 1042 | len = RARRAY_LEN(ary);
|
---|
| 1043 | for (i=0; i<len; i++) {
|
---|
| 1044 | mrb_value c = mrb_funcall_argv(mrb, mrb_ary_entry(ary, i), eqq, 1, &v);
|
---|
| 1045 | if (mrb_test(c)) return mrb_true_value();
|
---|
| 1046 | }
|
---|
| 1047 | return mrb_false_value();
|
---|
| 1048 | }
|
---|
| 1049 |
|
---|
| 1050 | static mrb_value
|
---|
| 1051 | mrb_local_variables(mrb_state *mrb, mrb_value self)
|
---|
| 1052 | {
|
---|
| 1053 | mrb_value ret;
|
---|
| 1054 | struct RProc *proc;
|
---|
| 1055 | struct mrb_irep *irep;
|
---|
| 1056 | size_t i;
|
---|
| 1057 |
|
---|
| 1058 | proc = mrb->c->ci[-1].proc;
|
---|
| 1059 |
|
---|
| 1060 | if (MRB_PROC_CFUNC_P(proc)) {
|
---|
| 1061 | return mrb_ary_new(mrb);
|
---|
| 1062 | }
|
---|
| 1063 |
|
---|
| 1064 | irep = proc->body.irep;
|
---|
| 1065 | if (!irep->lv) {
|
---|
| 1066 | return mrb_ary_new(mrb);
|
---|
| 1067 | }
|
---|
| 1068 | ret = mrb_ary_new_capa(mrb, irep->nlocals - 1);
|
---|
| 1069 | for (i = 0; i + 1 < irep->nlocals; ++i) {
|
---|
| 1070 | if (irep->lv[i].name) {
|
---|
| 1071 | mrb_ary_push(mrb, ret, mrb_symbol_value(irep->lv[i].name));
|
---|
| 1072 | }
|
---|
| 1073 | }
|
---|
| 1074 | if (proc->env) {
|
---|
| 1075 | struct REnv *e = proc->env;
|
---|
| 1076 |
|
---|
| 1077 | while (e) {
|
---|
| 1078 | if (!MRB_PROC_CFUNC_P(mrb->c->cibase[e->cioff].proc)) {
|
---|
| 1079 | irep = mrb->c->cibase[e->cioff].proc->body.irep;
|
---|
| 1080 | if (irep->lv) {
|
---|
| 1081 | for (i = 0; i + 1 < irep->nlocals; ++i) {
|
---|
| 1082 | if (irep->lv[i].name) {
|
---|
| 1083 | mrb_ary_push(mrb, ret, mrb_symbol_value(irep->lv[i].name));
|
---|
| 1084 | }
|
---|
| 1085 | }
|
---|
| 1086 | }
|
---|
| 1087 | }
|
---|
| 1088 | e = (struct REnv*)e->c;
|
---|
| 1089 | }
|
---|
| 1090 | }
|
---|
| 1091 |
|
---|
| 1092 | return ret;
|
---|
| 1093 | }
|
---|
| 1094 |
|
---|
| 1095 | void
|
---|
| 1096 | mrb_init_kernel(mrb_state *mrb)
|
---|
| 1097 | {
|
---|
| 1098 | struct RClass *krn;
|
---|
| 1099 |
|
---|
| 1100 | mrb->kernel_module = krn = mrb_define_module(mrb, "Kernel"); /* 15.3.1 */
|
---|
| 1101 | mrb_define_class_method(mrb, krn, "block_given?", mrb_f_block_given_p_m, MRB_ARGS_NONE()); /* 15.3.1.2.2 */
|
---|
| 1102 | mrb_define_class_method(mrb, krn, "global_variables", mrb_f_global_variables, MRB_ARGS_NONE()); /* 15.3.1.2.4 */
|
---|
| 1103 | mrb_define_class_method(mrb, krn, "iterator?", mrb_f_block_given_p_m, MRB_ARGS_NONE()); /* 15.3.1.2.5 */
|
---|
| 1104 | mrb_define_class_method(mrb, krn, "local_variables", mrb_local_variables, MRB_ARGS_NONE()); /* 15.3.1.2.7 */
|
---|
| 1105 | ; /* 15.3.1.2.11 */
|
---|
| 1106 | mrb_define_class_method(mrb, krn, "raise", mrb_f_raise, MRB_ARGS_OPT(2)); /* 15.3.1.2.12 */
|
---|
| 1107 |
|
---|
| 1108 | mrb_define_method(mrb, krn, "singleton_class", mrb_singleton_class, MRB_ARGS_NONE());
|
---|
| 1109 |
|
---|
| 1110 | mrb_define_method(mrb, krn, "==", mrb_obj_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.1 */
|
---|
| 1111 | mrb_define_method(mrb, krn, "!=", mrb_obj_not_equal_m, MRB_ARGS_REQ(1));
|
---|
| 1112 | mrb_define_method(mrb, krn, "===", mrb_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.2 */
|
---|
| 1113 | mrb_define_method(mrb, krn, "__id__", mrb_obj_id_m, MRB_ARGS_NONE()); /* 15.3.1.3.3 */
|
---|
| 1114 | mrb_define_method(mrb, krn, "__send__", mrb_f_send, MRB_ARGS_ANY()); /* 15.3.1.3.4 */
|
---|
| 1115 | mrb_define_method(mrb, krn, "block_given?", mrb_f_block_given_p_m, MRB_ARGS_NONE()); /* 15.3.1.3.6 */
|
---|
| 1116 | mrb_define_method(mrb, krn, "class", mrb_obj_class_m, MRB_ARGS_NONE()); /* 15.3.1.3.7 */
|
---|
| 1117 | mrb_define_method(mrb, krn, "clone", mrb_obj_clone, MRB_ARGS_NONE()); /* 15.3.1.3.8 */
|
---|
| 1118 | mrb_define_method(mrb, krn, "dup", mrb_obj_dup, MRB_ARGS_NONE()); /* 15.3.1.3.9 */
|
---|
| 1119 | mrb_define_method(mrb, krn, "eql?", mrb_obj_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.10 */
|
---|
| 1120 | mrb_define_method(mrb, krn, "equal?", mrb_obj_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.11 */
|
---|
| 1121 | mrb_define_method(mrb, krn, "extend", mrb_obj_extend_m, MRB_ARGS_ANY()); /* 15.3.1.3.13 */
|
---|
| 1122 | mrb_define_method(mrb, krn, "global_variables", mrb_f_global_variables, MRB_ARGS_NONE()); /* 15.3.1.3.14 */
|
---|
| 1123 | mrb_define_method(mrb, krn, "hash", mrb_obj_hash, MRB_ARGS_NONE()); /* 15.3.1.3.15 */
|
---|
| 1124 | mrb_define_method(mrb, krn, "initialize_copy", mrb_obj_init_copy, MRB_ARGS_REQ(1)); /* 15.3.1.3.16 */
|
---|
| 1125 | mrb_define_method(mrb, krn, "inspect", mrb_obj_inspect, MRB_ARGS_NONE()); /* 15.3.1.3.17 */
|
---|
| 1126 | mrb_define_method(mrb, krn, "instance_eval", mrb_obj_instance_eval, MRB_ARGS_ANY()); /* 15.3.1.3.18 */
|
---|
| 1127 | mrb_define_method(mrb, krn, "instance_of?", obj_is_instance_of, MRB_ARGS_REQ(1)); /* 15.3.1.3.19 */
|
---|
| 1128 | mrb_define_method(mrb, krn, "instance_variable_defined?", mrb_obj_ivar_defined, MRB_ARGS_REQ(1)); /* 15.3.1.3.20 */
|
---|
| 1129 | mrb_define_method(mrb, krn, "instance_variable_get", mrb_obj_ivar_get, MRB_ARGS_REQ(1)); /* 15.3.1.3.21 */
|
---|
| 1130 | mrb_define_method(mrb, krn, "instance_variable_set", mrb_obj_ivar_set, MRB_ARGS_REQ(2)); /* 15.3.1.3.22 */
|
---|
| 1131 | mrb_define_method(mrb, krn, "instance_variables", mrb_obj_instance_variables, MRB_ARGS_NONE()); /* 15.3.1.3.23 */
|
---|
| 1132 | mrb_define_method(mrb, krn, "is_a?", mrb_obj_is_kind_of_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.24 */
|
---|
| 1133 | mrb_define_method(mrb, krn, "iterator?", mrb_f_block_given_p_m, MRB_ARGS_NONE()); /* 15.3.1.3.25 */
|
---|
| 1134 | mrb_define_method(mrb, krn, "kind_of?", mrb_obj_is_kind_of_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.26 */
|
---|
| 1135 | mrb_define_method(mrb, krn, "local_variables", mrb_local_variables, MRB_ARGS_NONE()); /* 15.3.1.3.28 */
|
---|
| 1136 | mrb_define_method(mrb, krn, "methods", mrb_obj_methods_m, MRB_ARGS_OPT(1)); /* 15.3.1.3.31 */
|
---|
| 1137 | mrb_define_method(mrb, krn, "nil?", mrb_false, MRB_ARGS_NONE()); /* 15.3.1.3.32 */
|
---|
| 1138 | mrb_define_method(mrb, krn, "object_id", mrb_obj_id_m, MRB_ARGS_NONE()); /* 15.3.1.3.33 */
|
---|
| 1139 | mrb_define_method(mrb, krn, "private_methods", mrb_obj_private_methods, MRB_ARGS_OPT(1)); /* 15.3.1.3.36 */
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| 1140 | mrb_define_method(mrb, krn, "protected_methods", mrb_obj_protected_methods, MRB_ARGS_OPT(1)); /* 15.3.1.3.37 */
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| 1141 | mrb_define_method(mrb, krn, "public_methods", mrb_obj_public_methods, MRB_ARGS_OPT(1)); /* 15.3.1.3.38 */
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| 1142 | mrb_define_method(mrb, krn, "raise", mrb_f_raise, MRB_ARGS_ANY()); /* 15.3.1.3.40 */
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| 1143 | mrb_define_method(mrb, krn, "remove_instance_variable", mrb_obj_remove_instance_variable,MRB_ARGS_REQ(1)); /* 15.3.1.3.41 */
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| 1144 | mrb_define_method(mrb, krn, "respond_to?", obj_respond_to, MRB_ARGS_ANY()); /* 15.3.1.3.43 */
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| 1145 | mrb_define_method(mrb, krn, "send", mrb_f_send, MRB_ARGS_ANY()); /* 15.3.1.3.44 */
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| 1146 | mrb_define_method(mrb, krn, "singleton_methods", mrb_obj_singleton_methods_m, MRB_ARGS_OPT(1)); /* 15.3.1.3.45 */
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| 1147 | mrb_define_method(mrb, krn, "define_singleton_method", mod_define_singleton_method, MRB_ARGS_ANY());
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| 1148 | mrb_define_method(mrb, krn, "to_s", mrb_any_to_s, MRB_ARGS_NONE()); /* 15.3.1.3.46 */
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| 1149 | mrb_define_method(mrb, krn, "__case_eqq", mrb_obj_ceqq, MRB_ARGS_REQ(1)); /* internal */
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| 1150 |
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| 1151 | mrb_include_module(mrb, mrb->object_class, mrb->kernel_module);
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| 1152 | mrb_alias_method(mrb, mrb->module_class, mrb_intern_lit(mrb, "dup"), mrb_intern_lit(mrb, "clone"));
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| 1153 | }
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