1 | /*
|
---|
2 | ** object.c - Object, NilClass, TrueClass, FalseClass class
|
---|
3 | **
|
---|
4 | ** See Copyright Notice in mruby.h
|
---|
5 | */
|
---|
6 |
|
---|
7 | #include <mruby.h>
|
---|
8 | #include <mruby/class.h>
|
---|
9 | #include <mruby/numeric.h>
|
---|
10 | #include <mruby/string.h>
|
---|
11 | #include <mruby/class.h>
|
---|
12 |
|
---|
13 | MRB_API mrb_bool
|
---|
14 | mrb_obj_eq(mrb_state *mrb, mrb_value v1, mrb_value v2)
|
---|
15 | {
|
---|
16 | if (mrb_type(v1) != mrb_type(v2)) return FALSE;
|
---|
17 | switch (mrb_type(v1)) {
|
---|
18 | case MRB_TT_TRUE:
|
---|
19 | return TRUE;
|
---|
20 |
|
---|
21 | case MRB_TT_FALSE:
|
---|
22 | case MRB_TT_FIXNUM:
|
---|
23 | return (mrb_fixnum(v1) == mrb_fixnum(v2));
|
---|
24 | case MRB_TT_SYMBOL:
|
---|
25 | return (mrb_symbol(v1) == mrb_symbol(v2));
|
---|
26 |
|
---|
27 | case MRB_TT_FLOAT:
|
---|
28 | return (mrb_float(v1) == mrb_float(v2));
|
---|
29 |
|
---|
30 | default:
|
---|
31 | return (mrb_ptr(v1) == mrb_ptr(v2));
|
---|
32 | }
|
---|
33 | }
|
---|
34 |
|
---|
35 | MRB_API mrb_bool
|
---|
36 | mrb_obj_equal(mrb_state *mrb, mrb_value v1, mrb_value v2)
|
---|
37 | {
|
---|
38 | /* temporary definition */
|
---|
39 | return mrb_obj_eq(mrb, v1, v2);
|
---|
40 | }
|
---|
41 |
|
---|
42 | MRB_API mrb_bool
|
---|
43 | mrb_equal(mrb_state *mrb, mrb_value obj1, mrb_value obj2)
|
---|
44 | {
|
---|
45 | mrb_value result;
|
---|
46 |
|
---|
47 | if (mrb_obj_eq(mrb, obj1, obj2)) return TRUE;
|
---|
48 | result = mrb_funcall(mrb, obj1, "==", 1, obj2);
|
---|
49 | if (mrb_test(result)) return TRUE;
|
---|
50 | return FALSE;
|
---|
51 | }
|
---|
52 |
|
---|
53 | /*
|
---|
54 | * Document-class: NilClass
|
---|
55 | *
|
---|
56 | * The class of the singleton object <code>nil</code>.
|
---|
57 | */
|
---|
58 |
|
---|
59 | /* 15.2.4.3.4 */
|
---|
60 | /*
|
---|
61 | * call_seq:
|
---|
62 | * nil.nil? -> true
|
---|
63 | *
|
---|
64 | * Only the object <i>nil</i> responds <code>true</code> to <code>nil?</code>.
|
---|
65 | */
|
---|
66 |
|
---|
67 | static mrb_value
|
---|
68 | mrb_true(mrb_state *mrb, mrb_value obj)
|
---|
69 | {
|
---|
70 | return mrb_true_value();
|
---|
71 | }
|
---|
72 |
|
---|
73 | /* 15.2.4.3.5 */
|
---|
74 | /*
|
---|
75 | * call-seq:
|
---|
76 | * nil.to_s -> ""
|
---|
77 | *
|
---|
78 | * Always returns the empty string.
|
---|
79 | */
|
---|
80 |
|
---|
81 | static mrb_value
|
---|
82 | nil_to_s(mrb_state *mrb, mrb_value obj)
|
---|
83 | {
|
---|
84 | return mrb_str_new(mrb, 0, 0);
|
---|
85 | }
|
---|
86 |
|
---|
87 | static mrb_value
|
---|
88 | nil_inspect(mrb_state *mrb, mrb_value obj)
|
---|
89 | {
|
---|
90 | return mrb_str_new_lit(mrb, "nil");
|
---|
91 | }
|
---|
92 |
|
---|
93 | /***********************************************************************
|
---|
94 | * Document-class: TrueClass
|
---|
95 | *
|
---|
96 | * The global value <code>true</code> is the only instance of class
|
---|
97 | * <code>TrueClass</code> and represents a logically true value in
|
---|
98 | * boolean expressions. The class provides operators allowing
|
---|
99 | * <code>true</code> to be used in logical expressions.
|
---|
100 | */
|
---|
101 |
|
---|
102 | /* 15.2.5.3.1 */
|
---|
103 | /*
|
---|
104 | * call-seq:
|
---|
105 | * true & obj -> true or false
|
---|
106 | *
|
---|
107 | * And---Returns <code>false</code> if <i>obj</i> is
|
---|
108 | * <code>nil</code> or <code>false</code>, <code>true</code> otherwise.
|
---|
109 | */
|
---|
110 |
|
---|
111 | static mrb_value
|
---|
112 | true_and(mrb_state *mrb, mrb_value obj)
|
---|
113 | {
|
---|
114 | mrb_bool obj2;
|
---|
115 |
|
---|
116 | mrb_get_args(mrb, "b", &obj2);
|
---|
117 |
|
---|
118 | return mrb_bool_value(obj2);
|
---|
119 | }
|
---|
120 |
|
---|
121 | /* 15.2.5.3.2 */
|
---|
122 | /*
|
---|
123 | * call-seq:
|
---|
124 | * true ^ obj -> !obj
|
---|
125 | *
|
---|
126 | * Exclusive Or---Returns <code>true</code> if <i>obj</i> is
|
---|
127 | * <code>nil</code> or <code>false</code>, <code>false</code>
|
---|
128 | * otherwise.
|
---|
129 | */
|
---|
130 |
|
---|
131 | static mrb_value
|
---|
132 | true_xor(mrb_state *mrb, mrb_value obj)
|
---|
133 | {
|
---|
134 | mrb_bool obj2;
|
---|
135 |
|
---|
136 | mrb_get_args(mrb, "b", &obj2);
|
---|
137 | return mrb_bool_value(!obj2);
|
---|
138 | }
|
---|
139 |
|
---|
140 | /* 15.2.5.3.3 */
|
---|
141 | /*
|
---|
142 | * call-seq:
|
---|
143 | * true.to_s -> "true"
|
---|
144 | *
|
---|
145 | * The string representation of <code>true</code> is "true".
|
---|
146 | */
|
---|
147 |
|
---|
148 | static mrb_value
|
---|
149 | true_to_s(mrb_state *mrb, mrb_value obj)
|
---|
150 | {
|
---|
151 | return mrb_str_new_lit(mrb, "true");
|
---|
152 | }
|
---|
153 |
|
---|
154 | /* 15.2.5.3.4 */
|
---|
155 | /*
|
---|
156 | * call-seq:
|
---|
157 | * true | obj -> true
|
---|
158 | *
|
---|
159 | * Or---Returns <code>true</code>. As <i>anObject</i> is an argument to
|
---|
160 | * a method call, it is always evaluated; there is no short-circuit
|
---|
161 | * evaluation in this case.
|
---|
162 | *
|
---|
163 | * true | puts("or")
|
---|
164 | * true || puts("logical or")
|
---|
165 | *
|
---|
166 | * <em>produces:</em>
|
---|
167 | *
|
---|
168 | * or
|
---|
169 | */
|
---|
170 |
|
---|
171 | static mrb_value
|
---|
172 | true_or(mrb_state *mrb, mrb_value obj)
|
---|
173 | {
|
---|
174 | return mrb_true_value();
|
---|
175 | }
|
---|
176 |
|
---|
177 | /*
|
---|
178 | * Document-class: FalseClass
|
---|
179 | *
|
---|
180 | * The global value <code>false</code> is the only instance of class
|
---|
181 | * <code>FalseClass</code> and represents a logically false value in
|
---|
182 | * boolean expressions. The class provides operators allowing
|
---|
183 | * <code>false</code> to participate correctly in logical expressions.
|
---|
184 | *
|
---|
185 | */
|
---|
186 |
|
---|
187 | /* 15.2.4.3.1 */
|
---|
188 | /* 15.2.6.3.1 */
|
---|
189 | /*
|
---|
190 | * call-seq:
|
---|
191 | * false & obj -> false
|
---|
192 | * nil & obj -> false
|
---|
193 | *
|
---|
194 | * And---Returns <code>false</code>. <i>obj</i> is always
|
---|
195 | * evaluated as it is the argument to a method call---there is no
|
---|
196 | * short-circuit evaluation in this case.
|
---|
197 | */
|
---|
198 |
|
---|
199 | static mrb_value
|
---|
200 | false_and(mrb_state *mrb, mrb_value obj)
|
---|
201 | {
|
---|
202 | return mrb_false_value();
|
---|
203 | }
|
---|
204 |
|
---|
205 | /* 15.2.4.3.2 */
|
---|
206 | /* 15.2.6.3.2 */
|
---|
207 | /*
|
---|
208 | * call-seq:
|
---|
209 | * false ^ obj -> true or false
|
---|
210 | * nil ^ obj -> true or false
|
---|
211 | *
|
---|
212 | * Exclusive Or---If <i>obj</i> is <code>nil</code> or
|
---|
213 | * <code>false</code>, returns <code>false</code>; otherwise, returns
|
---|
214 | * <code>true</code>.
|
---|
215 | *
|
---|
216 | */
|
---|
217 |
|
---|
218 | static mrb_value
|
---|
219 | false_xor(mrb_state *mrb, mrb_value obj)
|
---|
220 | {
|
---|
221 | mrb_bool obj2;
|
---|
222 |
|
---|
223 | mrb_get_args(mrb, "b", &obj2);
|
---|
224 | return mrb_bool_value(obj2);
|
---|
225 | }
|
---|
226 |
|
---|
227 | /* 15.2.4.3.3 */
|
---|
228 | /* 15.2.6.3.4 */
|
---|
229 | /*
|
---|
230 | * call-seq:
|
---|
231 | * false | obj -> true or false
|
---|
232 | * nil | obj -> true or false
|
---|
233 | *
|
---|
234 | * Or---Returns <code>false</code> if <i>obj</i> is
|
---|
235 | * <code>nil</code> or <code>false</code>; <code>true</code> otherwise.
|
---|
236 | */
|
---|
237 |
|
---|
238 | static mrb_value
|
---|
239 | false_or(mrb_state *mrb, mrb_value obj)
|
---|
240 | {
|
---|
241 | mrb_bool obj2;
|
---|
242 |
|
---|
243 | mrb_get_args(mrb, "b", &obj2);
|
---|
244 | return mrb_bool_value(obj2);
|
---|
245 | }
|
---|
246 |
|
---|
247 | /* 15.2.6.3.3 */
|
---|
248 | /*
|
---|
249 | * call-seq:
|
---|
250 | * false.to_s -> "false"
|
---|
251 | *
|
---|
252 | * 'nuf said...
|
---|
253 | */
|
---|
254 |
|
---|
255 | static mrb_value
|
---|
256 | false_to_s(mrb_state *mrb, mrb_value obj)
|
---|
257 | {
|
---|
258 | return mrb_str_new_lit(mrb, "false");
|
---|
259 | }
|
---|
260 |
|
---|
261 | void
|
---|
262 | mrb_init_object(mrb_state *mrb)
|
---|
263 | {
|
---|
264 | struct RClass *n;
|
---|
265 | struct RClass *t;
|
---|
266 | struct RClass *f;
|
---|
267 |
|
---|
268 | mrb->nil_class = n = mrb_define_class(mrb, "NilClass", mrb->object_class);
|
---|
269 | MRB_SET_INSTANCE_TT(n, MRB_TT_TRUE);
|
---|
270 | mrb_undef_class_method(mrb, n, "new");
|
---|
271 | mrb_define_method(mrb, n, "&", false_and, MRB_ARGS_REQ(1)); /* 15.2.4.3.1 */
|
---|
272 | mrb_define_method(mrb, n, "^", false_xor, MRB_ARGS_REQ(1)); /* 15.2.4.3.2 */
|
---|
273 | mrb_define_method(mrb, n, "|", false_or, MRB_ARGS_REQ(1)); /* 15.2.4.3.3 */
|
---|
274 | mrb_define_method(mrb, n, "nil?", mrb_true, MRB_ARGS_NONE()); /* 15.2.4.3.4 */
|
---|
275 | mrb_define_method(mrb, n, "to_s", nil_to_s, MRB_ARGS_NONE()); /* 15.2.4.3.5 */
|
---|
276 | mrb_define_method(mrb, n, "inspect", nil_inspect, MRB_ARGS_NONE());
|
---|
277 |
|
---|
278 | mrb->true_class = t = mrb_define_class(mrb, "TrueClass", mrb->object_class);
|
---|
279 | MRB_SET_INSTANCE_TT(t, MRB_TT_TRUE);
|
---|
280 | mrb_undef_class_method(mrb, t, "new");
|
---|
281 | mrb_define_method(mrb, t, "&", true_and, MRB_ARGS_REQ(1)); /* 15.2.5.3.1 */
|
---|
282 | mrb_define_method(mrb, t, "^", true_xor, MRB_ARGS_REQ(1)); /* 15.2.5.3.2 */
|
---|
283 | mrb_define_method(mrb, t, "to_s", true_to_s, MRB_ARGS_NONE()); /* 15.2.5.3.3 */
|
---|
284 | mrb_define_method(mrb, t, "|", true_or, MRB_ARGS_REQ(1)); /* 15.2.5.3.4 */
|
---|
285 | mrb_define_method(mrb, t, "inspect", true_to_s, MRB_ARGS_NONE());
|
---|
286 |
|
---|
287 | mrb->false_class = f = mrb_define_class(mrb, "FalseClass", mrb->object_class);
|
---|
288 | MRB_SET_INSTANCE_TT(f, MRB_TT_TRUE);
|
---|
289 | mrb_undef_class_method(mrb, f, "new");
|
---|
290 | mrb_define_method(mrb, f, "&", false_and, MRB_ARGS_REQ(1)); /* 15.2.6.3.1 */
|
---|
291 | mrb_define_method(mrb, f, "^", false_xor, MRB_ARGS_REQ(1)); /* 15.2.6.3.2 */
|
---|
292 | mrb_define_method(mrb, f, "to_s", false_to_s, MRB_ARGS_NONE()); /* 15.2.6.3.3 */
|
---|
293 | mrb_define_method(mrb, f, "|", false_or, MRB_ARGS_REQ(1)); /* 15.2.6.3.4 */
|
---|
294 | mrb_define_method(mrb, f, "inspect", false_to_s, MRB_ARGS_NONE());
|
---|
295 | }
|
---|
296 |
|
---|
297 | static mrb_value
|
---|
298 | inspect_type(mrb_state *mrb, mrb_value val)
|
---|
299 | {
|
---|
300 | if (mrb_type(val) == MRB_TT_FALSE || mrb_type(val) == MRB_TT_TRUE) {
|
---|
301 | return mrb_inspect(mrb, val);
|
---|
302 | }
|
---|
303 | else {
|
---|
304 | return mrb_str_new_cstr(mrb, mrb_obj_classname(mrb, val));
|
---|
305 | }
|
---|
306 | }
|
---|
307 |
|
---|
308 | static mrb_value
|
---|
309 | convert_type(mrb_state *mrb, mrb_value val, const char *tname, const char *method, mrb_bool raise)
|
---|
310 | {
|
---|
311 | mrb_sym m = 0;
|
---|
312 |
|
---|
313 | m = mrb_intern_cstr(mrb, method);
|
---|
314 | if (!mrb_respond_to(mrb, val, m)) {
|
---|
315 | if (raise) {
|
---|
316 | mrb_raisef(mrb, E_TYPE_ERROR, "can't convert %S into %S", inspect_type(mrb, val), mrb_str_new_cstr(mrb, tname));
|
---|
317 | }
|
---|
318 | return mrb_nil_value();
|
---|
319 | }
|
---|
320 | return mrb_funcall_argv(mrb, val, m, 0, 0);
|
---|
321 | }
|
---|
322 |
|
---|
323 | MRB_API mrb_value
|
---|
324 | mrb_check_to_integer(mrb_state *mrb, mrb_value val, const char *method)
|
---|
325 | {
|
---|
326 | mrb_value v;
|
---|
327 |
|
---|
328 | if (mrb_fixnum_p(val)) return val;
|
---|
329 | v = convert_type(mrb, val, "Integer", method, FALSE);
|
---|
330 | if (mrb_nil_p(v) || !mrb_fixnum_p(v)) {
|
---|
331 | return mrb_nil_value();
|
---|
332 | }
|
---|
333 | return v;
|
---|
334 | }
|
---|
335 |
|
---|
336 | MRB_API mrb_value
|
---|
337 | mrb_convert_type(mrb_state *mrb, mrb_value val, enum mrb_vtype type, const char *tname, const char *method)
|
---|
338 | {
|
---|
339 | mrb_value v;
|
---|
340 |
|
---|
341 | if (mrb_type(val) == type) return val;
|
---|
342 | v = convert_type(mrb, val, tname, method, TRUE);
|
---|
343 | if (mrb_type(v) != type) {
|
---|
344 | mrb_raisef(mrb, E_TYPE_ERROR, "%S cannot be converted to %S by #%S", val,
|
---|
345 | mrb_str_new_cstr(mrb, tname), mrb_str_new_cstr(mrb, method));
|
---|
346 | }
|
---|
347 | return v;
|
---|
348 | }
|
---|
349 |
|
---|
350 | MRB_API mrb_value
|
---|
351 | mrb_check_convert_type(mrb_state *mrb, mrb_value val, enum mrb_vtype type, const char *tname, const char *method)
|
---|
352 | {
|
---|
353 | mrb_value v;
|
---|
354 |
|
---|
355 | if (mrb_type(val) == type && type != MRB_TT_DATA && type != MRB_TT_ISTRUCT) return val;
|
---|
356 | v = convert_type(mrb, val, tname, method, FALSE);
|
---|
357 | if (mrb_nil_p(v) || mrb_type(v) != type) return mrb_nil_value();
|
---|
358 | return v;
|
---|
359 | }
|
---|
360 |
|
---|
361 | static const struct types {
|
---|
362 | unsigned char type;
|
---|
363 | const char *name;
|
---|
364 | } builtin_types[] = {
|
---|
365 | /* {MRB_TT_NIL, "nil"}, */
|
---|
366 | {MRB_TT_FALSE, "false"},
|
---|
367 | {MRB_TT_TRUE, "true"},
|
---|
368 | {MRB_TT_FIXNUM, "Fixnum"},
|
---|
369 | {MRB_TT_SYMBOL, "Symbol"}, /* :symbol */
|
---|
370 | {MRB_TT_MODULE, "Module"},
|
---|
371 | {MRB_TT_OBJECT, "Object"},
|
---|
372 | {MRB_TT_CLASS, "Class"},
|
---|
373 | {MRB_TT_ICLASS, "iClass"}, /* internal use: mixed-in module holder */
|
---|
374 | {MRB_TT_SCLASS, "SClass"},
|
---|
375 | {MRB_TT_PROC, "Proc"},
|
---|
376 | {MRB_TT_FLOAT, "Float"},
|
---|
377 | {MRB_TT_ARRAY, "Array"},
|
---|
378 | {MRB_TT_HASH, "Hash"},
|
---|
379 | {MRB_TT_STRING, "String"},
|
---|
380 | {MRB_TT_RANGE, "Range"},
|
---|
381 | /* {MRB_TT_BIGNUM, "Bignum"}, */
|
---|
382 | {MRB_TT_FILE, "File"},
|
---|
383 | {MRB_TT_DATA, "Data"}, /* internal use: wrapped C pointers */
|
---|
384 | /* {MRB_TT_VARMAP, "Varmap"}, */ /* internal use: dynamic variables */
|
---|
385 | /* {MRB_TT_NODE, "Node"}, */ /* internal use: syntax tree node */
|
---|
386 | /* {MRB_TT_UNDEF, "undef"}, */ /* internal use: #undef; should not happen */
|
---|
387 | {MRB_TT_MAXDEFINE, 0}
|
---|
388 | };
|
---|
389 |
|
---|
390 | MRB_API void
|
---|
391 | mrb_check_type(mrb_state *mrb, mrb_value x, enum mrb_vtype t)
|
---|
392 | {
|
---|
393 | const struct types *type = builtin_types;
|
---|
394 | enum mrb_vtype xt;
|
---|
395 |
|
---|
396 | xt = mrb_type(x);
|
---|
397 | if ((xt != t) || (xt == MRB_TT_DATA) || (xt == MRB_TT_ISTRUCT)) {
|
---|
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, ":");
|
---|
447 | mrb_str_concat(mrb, str, mrb_ptr_to_str(mrb, mrb_ptr(obj)));
|
---|
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:
|
---|
488 | case MRB_TT_SCLASS:
|
---|
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;
|
---|
537 | else {
|
---|
538 | mrb_float f = mrb_float(val);
|
---|
539 | if (FIXABLE_FLOAT(f)) {
|
---|
540 | break;
|
---|
541 | }
|
---|
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)) {
|
---|
559 | val = tmp;
|
---|
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 | }
|
---|