Mercurial > projects > ddmd
annotate dmd/TypeBasic.d @ 130:60bb0fe4563e
dmdfe 2.037 first main iteration
author | Eldar Insafutdinov <e.insafutdinov@gmail.com> |
---|---|
date | Thu, 09 Sep 2010 22:51:44 +0100 |
parents | e28b18c23469 |
children | 4251f96733f4 |
rev | line source |
---|---|
0 | 1 module dmd.TypeBasic; |
2 | |
114 | 3 import dmd.common; |
0 | 4 import dmd.Type; |
5 import dmd.Id; | |
6 import dmd.MOD; | |
7 import dmd.TOK; | |
8 import dmd.Token; | |
9 import dmd.TFLAGS; | |
10 import dmd.TY; | |
11 import dmd.Loc; | |
12 import dmd.Scope; | |
13 import dmd.Expression; | |
14 import dmd.IntegerExp; | |
15 import dmd.Identifier; | |
16 import dmd.OutBuffer; | |
17 import dmd.HdrGenState; | |
18 import dmd.CppMangleState; | |
19 import dmd.MATCH; | |
20 import dmd.RealExp; | |
21 import dmd.ComplexExp; | |
22 import dmd.Util; | |
23 import dmd.Port; | |
24 import dmd.Complex; | |
25 | |
26 class TypeBasic : Type | |
27 { | |
28 string dstring; | |
29 uint flags; | |
30 | |
31 this(TY ty) | |
32 { | |
33 super(ty); | |
34 | |
35 enum TFLAGSintegral = 1; | |
36 enum TFLAGSfloating = 2; | |
37 enum TFLAGSunsigned = 4; | |
38 enum TFLAGSreal = 8; | |
39 enum TFLAGSimaginary = 0x10; | |
40 enum TFLAGScomplex = 0x20; | |
41 | |
42 string d; | |
43 | |
44 uint flags = 0; | |
45 switch (ty) | |
46 { | |
47 case TY.Tvoid: d = Token.toChars(TOK.TOKvoid); | |
48 break; | |
49 | |
50 case TY.Tint8: d = Token.toChars(TOK.TOKint8); | |
51 flags |= TFLAGSintegral; | |
52 break; | |
53 | |
54 case TY.Tuns8: d = Token.toChars(TOK.TOKuns8); | |
55 flags |= TFLAGSintegral | TFLAGSunsigned; | |
56 break; | |
57 | |
58 case TY.Tint16: d = Token.toChars(TOK.TOKint16); | |
59 flags |= TFLAGSintegral; | |
60 break; | |
61 | |
62 case TY.Tuns16: d = Token.toChars(TOK.TOKuns16); | |
63 flags |= TFLAGSintegral | TFLAGSunsigned; | |
64 break; | |
65 | |
66 case TY.Tint32: d = Token.toChars(TOK.TOKint32); | |
67 flags |= TFLAGSintegral; | |
68 break; | |
69 | |
70 case TY.Tuns32: d = Token.toChars(TOK.TOKuns32); | |
71 flags |= TFLAGSintegral | TFLAGSunsigned; | |
72 break; | |
73 | |
74 case TY.Tfloat32: d = Token.toChars(TOK.TOKfloat32); | |
75 flags |= TFLAGSfloating | TFLAGSreal; | |
76 break; | |
77 | |
78 case TY.Tint64: d = Token.toChars(TOK.TOKint64); | |
79 flags |= TFLAGSintegral; | |
80 break; | |
81 | |
82 case TY.Tuns64: d = Token.toChars(TOK.TOKuns64); | |
83 flags |= TFLAGSintegral | TFLAGSunsigned; | |
84 break; | |
85 | |
86 case TY.Tfloat64: d = Token.toChars(TOK.TOKfloat64); | |
87 flags |= TFLAGSfloating | TFLAGSreal; | |
88 break; | |
89 | |
90 case TY.Tfloat80: d = Token.toChars(TOK.TOKfloat80); | |
91 flags |= TFLAGSfloating | TFLAGSreal; | |
92 break; | |
93 | |
94 case TY.Timaginary32: d = Token.toChars(TOK.TOKimaginary32); | |
95 flags |= TFLAGSfloating | TFLAGSimaginary; | |
96 break; | |
97 | |
98 case TY.Timaginary64: d = Token.toChars(TOK.TOKimaginary64); | |
99 flags |= TFLAGSfloating | TFLAGSimaginary; | |
100 break; | |
101 | |
102 case TY.Timaginary80: d = Token.toChars(TOK.TOKimaginary80); | |
103 flags |= TFLAGSfloating | TFLAGSimaginary; | |
104 break; | |
105 | |
106 case TY.Tcomplex32: d = Token.toChars(TOK.TOKcomplex32); | |
107 flags |= TFLAGSfloating | TFLAGScomplex; | |
108 break; | |
109 | |
110 case TY.Tcomplex64: d = Token.toChars(TOK.TOKcomplex64); | |
111 flags |= TFLAGSfloating | TFLAGScomplex; | |
112 break; | |
113 | |
114 case TY.Tcomplex80: d = Token.toChars(TOK.TOKcomplex80); | |
115 flags |= TFLAGSfloating | TFLAGScomplex; | |
116 break; | |
117 | |
118 case TY.Tbool: d = "bool"; | |
119 flags |= TFLAGSintegral | TFLAGSunsigned; | |
120 break; | |
121 | |
122 case TY.Tascii: d = Token.toChars(TOK.TOKchar); | |
123 flags |= TFLAGSintegral | TFLAGSunsigned; | |
124 break; | |
125 | |
126 case TY.Twchar: d = Token.toChars(TOK.TOKwchar); | |
127 flags |= TFLAGSintegral | TFLAGSunsigned; | |
128 break; | |
129 | |
130 case TY.Tdchar: d = Token.toChars(TOK.TOKdchar); | |
131 flags |= TFLAGSintegral | TFLAGSunsigned; | |
132 break; | |
133 } | |
134 | |
135 this.dstring = d; | |
136 this.flags = flags; | |
137 merge(); | |
138 } | |
139 | |
140 version (DumbClone) { | |
141 } else { | |
142 Type clone() | |
143 { | |
144 assert(false); | |
145 } | |
146 } | |
72 | 147 override Type syntaxCopy() |
0 | 148 { |
149 // No semantic analysis done on basic types, no need to copy | |
150 return this; | |
151 } | |
152 | |
72 | 153 override ulong size(Loc loc) |
0 | 154 { |
155 uint size; | |
156 | |
157 //printf("TypeBasic.size()\n"); | |
158 switch (ty) | |
159 { | |
160 case TY.Tint8: | |
161 case TY.Tuns8: size = 1; break; | |
162 case TY.Tint16: | |
163 case TY.Tuns16: size = 2; break; | |
164 case TY.Tint32: | |
165 case TY.Tuns32: | |
166 case TY.Tfloat32: | |
167 case TY.Timaginary32: | |
168 size = 4; break; | |
169 case TY.Tint64: | |
170 case TY.Tuns64: | |
171 case TY.Tfloat64: | |
172 case TY.Timaginary64: | |
173 size = 8; break; | |
174 case TY.Tfloat80: | |
175 case TY.Timaginary80: | |
176 size = REALSIZE; break; | |
177 case TY.Tcomplex32: | |
178 size = 8; break; | |
179 case TY.Tcomplex64: | |
180 size = 16; break; | |
181 case TY.Tcomplex80: | |
182 size = REALSIZE * 2; break; | |
183 | |
184 case TY.Tvoid: | |
185 //size = Type.size(); // error message | |
186 size = 1; | |
187 break; | |
188 | |
189 case TY.Tbool: size = 1; break; | |
190 case TY.Tascii: size = 1; break; | |
191 case TY.Twchar: size = 2; break; | |
192 case TY.Tdchar: size = 4; break; | |
193 | |
194 default: | |
195 assert(0); | |
196 break; | |
197 } | |
198 | |
199 //printf("TypeBasic.size() = %d\n", size); | |
200 return size; | |
201 } | |
202 | |
72 | 203 override uint alignsize() |
0 | 204 { |
205 uint sz; | |
206 | |
207 switch (ty) | |
208 { | |
209 case TY.Tfloat80: | |
210 case TY.Timaginary80: | |
211 case TY.Tcomplex80: | |
212 sz = REALALIGNSIZE; | |
213 break; | |
214 | |
22
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
215 version (POSIX) { ///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS |
0 | 216 case TY.Tint64: |
217 case TY.Tuns64: | |
218 case TY.Tfloat64: | |
219 case TY.Timaginary64: | |
220 case TY.Tcomplex32: | |
221 case TY.Tcomplex64: | |
222 sz = 4; | |
223 break; | |
224 } | |
225 | |
226 default: | |
227 sz = cast(uint)size(Loc(0)); /// | |
228 break; | |
229 } | |
230 | |
231 return sz; | |
232 } | |
233 | |
72 | 234 override Expression getProperty(Loc loc, Identifier ident) |
0 | 235 { |
236 Expression e; | |
237 long ivalue; | |
238 real fvalue; | |
239 | |
240 //printf("TypeBasic.getProperty('%s')\n", ident.toChars()); | |
241 if (ident is Id.max) | |
242 { | |
243 switch (ty) | |
244 { | |
245 case TY.Tint8: ivalue = byte.max; goto Livalue; | |
246 case TY.Tuns8: ivalue = ubyte.max; goto Livalue; | |
247 case TY.Tint16: ivalue = short.max; goto Livalue; | |
248 case TY.Tuns16: ivalue = ushort.max; goto Livalue; | |
249 case TY.Tint32: ivalue = int.max; goto Livalue; | |
250 case TY.Tuns32: ivalue = uint.max; goto Livalue; | |
251 case TY.Tint64: ivalue = long.max; goto Livalue; | |
252 case TY.Tuns64: ivalue = ulong.max; goto Livalue; | |
253 case TY.Tbool: ivalue = bool.max; goto Livalue; | |
254 case TY.Tchar: ivalue = char.max; goto Livalue; | |
255 case TY.Twchar: ivalue = wchar.max; goto Livalue; | |
256 case TY.Tdchar: ivalue = 0x10FFFF; goto Livalue; | |
257 case TY.Tcomplex32: | |
258 case TY.Timaginary32: | |
259 case TY.Tfloat32: fvalue = float.max; goto Lfvalue; | |
260 case TY.Tcomplex64: | |
261 case TY.Timaginary64: | |
262 case TY.Tfloat64: fvalue = double.max;goto Lfvalue; | |
263 case TY.Tcomplex80: | |
264 case TY.Timaginary80: | |
265 case TY.Tfloat80: fvalue = real.max; goto Lfvalue; | |
266 } | |
267 } | |
268 else if (ident is Id.min) | |
269 { | |
270 switch (ty) | |
271 { | |
272 case TY.Tint8: ivalue = byte.min; goto Livalue; | |
273 case TY.Tuns8: ivalue = ubyte.min; goto Livalue; | |
274 case TY.Tint16: ivalue = short.min; goto Livalue; | |
275 case TY.Tuns16: ivalue = ushort.min; goto Livalue; | |
276 case TY.Tint32: ivalue = int.min; goto Livalue; | |
277 case TY.Tuns32: ivalue = uint.min; goto Livalue; | |
278 case TY.Tint64: ivalue = long.min; goto Livalue; | |
279 case TY.Tuns64: ivalue = ulong.min; goto Livalue; | |
280 case TY.Tbool: ivalue = bool.min; goto Livalue; | |
281 case TY.Tchar: ivalue = char.min; goto Livalue; | |
282 case TY.Twchar: ivalue = wchar.min; goto Livalue; | |
283 case TY.Tdchar: ivalue = dchar.min; goto Livalue; | |
284 case TY.Tcomplex32: | |
285 case TY.Timaginary32: | |
96 | 286 case Tfloat32: |
287 case Tcomplex64: | |
288 case Timaginary64: | |
289 case Tfloat64: | |
290 case Tcomplex80: | |
291 case Timaginary80: | |
292 case Tfloat80: | |
293 // For backwards compatibility - eventually, deprecate | |
294 goto Lmin_normal; | |
295 } | |
296 } | |
297 else if (ident == Id.min_normal) | |
298 { | |
299 Lmin_normal: | |
300 switch (ty) | |
301 { | |
302 case Tcomplex32: | |
303 case Timaginary32: | |
0 | 304 case TY.Tfloat32: fvalue = float.min; goto Lfvalue; |
305 case TY.Tcomplex64: | |
306 case TY.Timaginary64: | |
307 case TY.Tfloat64: fvalue = double.min; goto Lfvalue; | |
308 case TY.Tcomplex80: | |
309 case TY.Timaginary80: | |
310 case TY.Tfloat80: fvalue = real.min; goto Lfvalue; | |
311 } | |
312 } | |
313 else if (ident is Id.nan) | |
314 { | |
315 switch (ty) | |
316 { | |
317 case TY.Tcomplex32: | |
318 case TY.Tcomplex64: | |
319 case TY.Tcomplex80: | |
320 case TY.Timaginary32: | |
321 case TY.Timaginary64: | |
322 case TY.Timaginary80: | |
323 case TY.Tfloat32: | |
324 case TY.Tfloat64: | |
325 case TY.Tfloat80: | |
326 { | |
327 fvalue = real.nan; | |
328 goto Lfvalue; | |
329 } | |
330 } | |
331 } | |
332 else if (ident is Id.infinity) | |
333 { | |
334 switch (ty) | |
335 { | |
336 case TY.Tcomplex32: | |
337 case TY.Tcomplex64: | |
338 case TY.Tcomplex80: | |
339 case TY.Timaginary32: | |
340 case TY.Timaginary64: | |
341 case TY.Timaginary80: | |
342 case TY.Tfloat32: | |
343 case TY.Tfloat64: | |
344 case TY.Tfloat80: | |
345 fvalue = real.infinity; | |
346 goto Lfvalue; | |
347 } | |
348 } | |
349 else if (ident is Id.dig) | |
350 { | |
351 switch (ty) | |
352 { | |
353 case TY.Tcomplex32: | |
354 case TY.Timaginary32: | |
355 case TY.Tfloat32: ivalue = float.dig; goto Lint; | |
356 case TY.Tcomplex64: | |
357 case TY.Timaginary64: | |
358 case TY.Tfloat64: ivalue = double.dig; goto Lint; | |
359 case TY.Tcomplex80: | |
360 case TY.Timaginary80: | |
361 case TY.Tfloat80: ivalue = real.dig; goto Lint; | |
362 } | |
363 } | |
364 else if (ident is Id.epsilon) | |
365 { | |
366 switch (ty) | |
367 { | |
368 case TY.Tcomplex32: | |
369 case TY.Timaginary32: | |
370 case TY.Tfloat32: fvalue = float.epsilon; goto Lfvalue; | |
371 case TY.Tcomplex64: | |
372 case TY.Timaginary64: | |
373 case TY.Tfloat64: fvalue = double.epsilon; goto Lfvalue; | |
374 case TY.Tcomplex80: | |
375 case TY.Timaginary80: | |
376 case TY.Tfloat80: fvalue = real.epsilon; goto Lfvalue; | |
377 } | |
378 } | |
379 else if (ident is Id.mant_dig) | |
380 { | |
381 switch (ty) | |
382 { | |
383 case TY.Tcomplex32: | |
384 case TY.Timaginary32: | |
385 case TY.Tfloat32: ivalue = float.mant_dig; goto Lint; | |
386 case TY.Tcomplex64: | |
387 case TY.Timaginary64: | |
388 case TY.Tfloat64: ivalue = double.mant_dig; goto Lint; | |
389 case TY.Tcomplex80: | |
390 case TY.Timaginary80: | |
391 case TY.Tfloat80: ivalue = real.mant_dig; goto Lint; | |
392 } | |
393 } | |
394 else if (ident is Id.max_10_exp) | |
395 { | |
396 switch (ty) | |
397 { | |
398 case TY.Tcomplex32: | |
399 case TY.Timaginary32: | |
400 case TY.Tfloat32: ivalue = float.max_10_exp; goto Lint; | |
401 case TY.Tcomplex64: | |
402 case TY.Timaginary64: | |
403 case TY.Tfloat64: ivalue = double.max_10_exp; goto Lint; | |
404 case TY.Tcomplex80: | |
405 case TY.Timaginary80: | |
406 case TY.Tfloat80: ivalue = real.max_10_exp; goto Lint; | |
407 } | |
408 } | |
409 else if (ident is Id.max_exp) | |
410 { | |
411 switch (ty) | |
412 { | |
413 case TY.Tcomplex32: | |
414 case TY.Timaginary32: | |
415 case TY.Tfloat32: ivalue = float.max_exp; goto Lint; | |
416 case TY.Tcomplex64: | |
417 case TY.Timaginary64: | |
418 case TY.Tfloat64: ivalue = double.max_exp; goto Lint; | |
419 case TY.Tcomplex80: | |
420 case TY.Timaginary80: | |
421 case TY.Tfloat80: ivalue = real.max_exp; goto Lint; | |
422 } | |
423 } | |
424 else if (ident is Id.min_10_exp) | |
425 { | |
426 switch (ty) | |
427 { | |
428 case TY.Tcomplex32: | |
429 case TY.Timaginary32: | |
430 case TY.Tfloat32: ivalue = float.min_10_exp; goto Lint; | |
431 case TY.Tcomplex64: | |
432 case TY.Timaginary64: | |
433 case TY.Tfloat64: ivalue = double.min_10_exp; goto Lint; | |
434 case TY.Tcomplex80: | |
435 case TY.Timaginary80: | |
436 case TY.Tfloat80: ivalue = real.min_10_exp; goto Lint; | |
437 } | |
438 } | |
439 else if (ident is Id.min_exp) | |
440 { | |
441 switch (ty) | |
442 { | |
443 case TY.Tcomplex32: | |
444 case TY.Timaginary32: | |
445 case TY.Tfloat32: ivalue = float.min_exp; goto Lint; | |
446 case TY.Tcomplex64: | |
447 case TY.Timaginary64: | |
448 case TY.Tfloat64: ivalue = double.min_exp; goto Lint; | |
449 case TY.Tcomplex80: | |
450 case TY.Timaginary80: | |
451 case TY.Tfloat80: ivalue = real.min_exp; goto Lint; | |
452 } | |
453 } | |
454 | |
455 Ldefault: | |
456 return Type.getProperty(loc, ident); | |
457 | |
458 Livalue: | |
459 e = new IntegerExp(loc, ivalue, this); | |
460 return e; | |
461 | |
462 Lfvalue: | |
463 if (isreal() || isimaginary()) | |
464 e = new RealExp(loc, fvalue, this); | |
465 else | |
466 { | |
467 Complex!(real) cvalue; | |
468 cvalue.re = fvalue; | |
469 cvalue.im = fvalue; | |
470 | |
471 //for (int i = 0; i < 20; i++) | |
96 | 472 // printf("%02x ", ((unsigned char *)&cvalue)[i]); |
0 | 473 //printf("\n"); |
474 e = new ComplexExp(loc, cvalue, this); | |
475 } | |
476 return e; | |
477 | |
478 Lint: | |
479 e = new IntegerExp(loc, ivalue, Type.tint32); | |
480 return e; | |
481 } | |
482 | |
72 | 483 override Expression dotExp(Scope sc, Expression e, Identifier ident) |
0 | 484 { |
485 version (LOGDOTEXP) { | |
486 printf("TypeBasic.dotExp(e = '%s', ident = '%s')\n", e.toChars(), ident.toChars()); | |
487 } | |
488 Type t; | |
489 | |
490 if (ident is Id.re) | |
491 { | |
492 switch (ty) | |
493 { | |
494 case TY.Tcomplex32: t = tfloat32; goto L1; | |
495 case TY.Tcomplex64: t = tfloat64; goto L1; | |
496 case TY.Tcomplex80: t = tfloat80; goto L1; | |
497 L1: | |
498 e = e.castTo(sc, t); | |
499 break; | |
500 | |
501 case TY.Tfloat32: | |
502 case TY.Tfloat64: | |
503 case TY.Tfloat80: | |
504 break; | |
505 | |
506 case TY.Timaginary32: t = tfloat32; goto L2; | |
507 case TY.Timaginary64: t = tfloat64; goto L2; | |
508 case TY.Timaginary80: t = tfloat80; goto L2; | |
509 L2: | |
510 e = new RealExp(Loc(0), 0.0, t); | |
511 break; | |
512 | |
513 default: | |
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
514 e = Type.getProperty(e.loc, ident); |
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
515 break; |
0 | 516 } |
517 } | |
518 else if (ident is Id.im) | |
519 { | |
520 Type t2; | |
521 | |
522 switch (ty) | |
523 { | |
524 case TY.Tcomplex32: t = timaginary32; t2 = tfloat32; goto L3; | |
525 case TY.Tcomplex64: t = timaginary64; t2 = tfloat64; goto L3; | |
526 case TY.Tcomplex80: t = timaginary80; t2 = tfloat80; goto L3; | |
527 L3: | |
528 e = e.castTo(sc, t); | |
529 e.type = t2; | |
530 break; | |
531 | |
532 case TY.Timaginary32: t = tfloat32; goto L4; | |
533 case TY.Timaginary64: t = tfloat64; goto L4; | |
534 case TY.Timaginary80: t = tfloat80; goto L4; | |
535 L4: | |
536 e = e.copy(); | |
537 e.type = t; | |
538 break; | |
539 | |
540 case TY.Tfloat32: | |
541 case TY.Tfloat64: | |
542 case TY.Tfloat80: | |
543 e = new RealExp(Loc(0), 0.0, this); | |
544 break; | |
545 | |
546 default: | |
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
547 e = Type.getProperty(e.loc, ident); |
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
548 break; |
0 | 549 } |
550 } | |
551 else | |
552 { | |
553 return Type.dotExp(sc, e, ident); | |
554 } | |
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
555 e = e.semantic(sc); |
0 | 556 return e; |
557 } | |
558 | |
72 | 559 override string toChars() |
0 | 560 { |
561 return Type.toChars(); | |
562 } | |
563 | |
72 | 564 override void toCBuffer2(OutBuffer buf, HdrGenState* hgs, MOD mod) |
0 | 565 { |
566 //printf("TypeBasic.toCBuffer2(mod = %d, this.mod = %d)\n", mod, this.mod); | |
567 if (mod != this.mod) | |
568 { | |
569 toCBuffer3(buf, hgs, mod); | |
570 return; | |
571 } | |
572 buf.writestring(dstring); | |
573 } | |
574 | |
575 version (CPP_MANGLE) { | |
576 void toCppMangle(OutBuffer buf, CppMangleState* cms) | |
577 { | |
578 assert(false); | |
579 } | |
580 } | |
72 | 581 override bool isintegral() |
0 | 582 { |
583 //printf("TypeBasic.isintegral('%s') x%x\n", toChars(), flags); | |
584 return (flags & TFLAGS.TFLAGSintegral) != 0; | |
585 } | |
586 | |
587 bool isbit() | |
588 { | |
589 assert(false); | |
590 } | |
591 | |
72 | 592 override bool isfloating() |
0 | 593 { |
594 return (flags & TFLAGS.TFLAGSfloating) != 0; | |
595 } | |
596 | |
72 | 597 override bool isreal() |
0 | 598 { |
599 return (flags & TFLAGS.TFLAGSreal) != 0; | |
600 } | |
601 | |
72 | 602 override bool isimaginary() |
0 | 603 { |
604 return (flags & TFLAGS.TFLAGSimaginary) != 0; | |
605 } | |
606 | |
72 | 607 override bool iscomplex() |
0 | 608 { |
609 return (flags & TFLAGS.TFLAGScomplex) != 0; | |
610 } | |
611 | |
72 | 612 override bool isscalar() |
0 | 613 { |
614 return (flags & (TFLAGS.TFLAGSintegral | TFLAGS.TFLAGSfloating)) != 0; | |
615 } | |
616 | |
72 | 617 override bool isunsigned() |
0 | 618 { |
619 return (flags & TFLAGS.TFLAGSunsigned) != 0; | |
620 } | |
621 | |
72 | 622 override MATCH implicitConvTo(Type to) |
0 | 623 { |
624 //printf("TypeBasic.implicitConvTo(%s) from %s\n", to.toChars(), toChars()); | |
625 if (this is to) | |
626 return MATCH.MATCHexact; | |
627 | |
628 version (DMDV2) { | |
629 if (ty is to.ty) | |
630 { | |
631 return (mod == to.mod) ? MATCH.MATCHexact : MATCH.MATCHconst; | |
632 } | |
633 } | |
634 | |
635 if (ty == TY.Tvoid || to.ty == TY.Tvoid) | |
636 return MATCH.MATCHnomatch; | |
637 if (to.ty == TY.Tbool) | |
638 return MATCH.MATCHnomatch; | |
639 if (!to.isTypeBasic()) | |
640 return MATCH.MATCHnomatch; | |
641 | |
642 TypeBasic tob = cast(TypeBasic)to; | |
643 if (flags & TFLAGS.TFLAGSintegral) | |
644 { | |
645 // Disallow implicit conversion of integers to imaginary or complex | |
646 if (tob.flags & (TFLAGS.TFLAGSimaginary | TFLAGS.TFLAGScomplex)) | |
647 return MATCH.MATCHnomatch; | |
648 | |
649 version (DMDV2) { | |
650 // If converting from integral to integral | |
651 if (1 && tob.flags & TFLAGS.TFLAGSintegral) | |
652 { ulong sz = size(Loc(0)); | |
653 ulong tosz = tob.size(Loc(0)); | |
654 | |
655 /* Can't convert to smaller size | |
656 */ | |
657 if (sz > tosz) | |
658 return MATCH.MATCHnomatch; | |
659 | |
660 /* Can't change sign if same size | |
661 */ | |
662 /*if (sz == tosz && (flags ^ tob.flags) & TFLAGSunsigned) | |
663 return MATCH.MATCHnomatch;*/ | |
664 } | |
665 } | |
666 } | |
667 else if (flags & TFLAGS.TFLAGSfloating) | |
668 { | |
669 // Disallow implicit conversion of floating point to integer | |
670 if (tob.flags & TFLAGS.TFLAGSintegral) | |
671 return MATCH.MATCHnomatch; | |
672 | |
673 assert(tob.flags & TFLAGS.TFLAGSfloating); | |
674 | |
675 // Disallow implicit conversion from complex to non-complex | |
676 if (flags & TFLAGS.TFLAGScomplex && !(tob.flags & TFLAGS.TFLAGScomplex)) | |
677 return MATCH.MATCHnomatch; | |
678 | |
679 // Disallow implicit conversion of real or imaginary to complex | |
680 if (flags & (TFLAGS.TFLAGSreal | TFLAGS.TFLAGSimaginary) && | |
681 tob.flags & TFLAGS.TFLAGScomplex) | |
682 return MATCH.MATCHnomatch; | |
683 | |
684 // Disallow implicit conversion to-from real and imaginary | |
685 if ((flags & (TFLAGS.TFLAGSreal | TFLAGS.TFLAGSimaginary)) != | |
686 (tob.flags & (TFLAGS.TFLAGSreal | TFLAGS.TFLAGSimaginary))) | |
687 return MATCH.MATCHnomatch; | |
688 } | |
689 return MATCH.MATCHconvert; | |
690 } | |
691 | |
72 | 692 override Expression defaultInit(Loc loc) |
0 | 693 { |
694 long value = 0; | |
695 | |
696 version (SNAN_DEFAULT_INIT) { | |
697 /* | |
698 * Use a payload which is different from the machine NaN, | |
699 * so that uninitialised variables can be | |
700 * detected even if exceptions are disabled. | |
701 */ | |
702 ushort[8] snan = [ 0, 0, 0, 0xA000, 0x7FFF, 0, 0, 0 ]; | |
703 /* | |
704 * Although long doubles are 10 bytes long, some | |
705 * C ABIs pad them out to 12 or even 16 bytes, so | |
706 * leave enough space in the snan array. | |
707 */ | |
708 assert(REALSIZE <= snan.sizeof); | |
709 real fvalue = *cast(real*)snan.ptr; | |
710 } | |
711 | |
712 version (LOGDEFAULTINIT) { | |
713 printf("TypeBasic.defaultInit() '%s'\n", toChars()); | |
714 } | |
715 switch (ty) | |
716 { | |
717 case TY.Tchar: | |
718 value = 0xFF; | |
719 break; | |
720 | |
721 case TY.Twchar: | |
722 case TY.Tdchar: | |
723 value = 0xFFFF; | |
724 break; | |
725 | |
726 case TY.Timaginary32: | |
727 case TY.Timaginary64: | |
728 case TY.Timaginary80: | |
729 case TY.Tfloat32: | |
730 case TY.Tfloat64: | |
731 case TY.Tfloat80: | |
732 version (SNAN_DEFAULT_INIT) { | |
733 return new RealExp(loc, fvalue, this); | |
734 } else { | |
735 return getProperty(loc, Id.nan); | |
736 } | |
737 | |
738 case TY.Tcomplex32: | |
739 case TY.Tcomplex64: | |
740 case TY.Tcomplex80: | |
741 version (SNAN_DEFAULT_INIT) { | |
742 { | |
743 // Can't use fvalue + I*fvalue (the im part becomes a quiet NaN). | |
744 Complex!(real) cvalue; | |
745 cvalue.re = fvalue; | |
746 cvalue.im = fvalue; | |
747 | |
748 return new ComplexExp(loc, cvalue, this); | |
749 } | |
750 } else { | |
751 return getProperty(loc, Id.nan); | |
752 } | |
753 | |
754 case TY.Tvoid: | |
755 error(loc, "void does not have a default initializer"); | |
756 | |
757 default: | |
758 break; /// | |
759 } | |
760 return new IntegerExp(loc, value, this); | |
761 } | |
762 | |
72 | 763 override bool isZeroInit(Loc loc) |
0 | 764 { |
765 switch (ty) | |
766 { | |
767 case TY.Tchar: | |
768 case TY.Twchar: | |
769 case TY.Tdchar: | |
770 case TY.Timaginary32: | |
771 case TY.Timaginary64: | |
772 case TY.Timaginary80: | |
773 case TY.Tfloat32: | |
774 case TY.Tfloat64: | |
775 case TY.Tfloat80: | |
776 case TY.Tcomplex32: | |
777 case TY.Tcomplex64: | |
778 case TY.Tcomplex80: | |
779 return false; // no | |
780 default: | |
781 break; | |
782 } | |
783 | |
784 return true; // yes | |
785 } | |
786 | |
72 | 787 override bool builtinTypeInfo() |
0 | 788 { |
789 version (DMDV2) { | |
790 return mod ? false : true; | |
791 } else { | |
792 return true; | |
793 } | |
794 } | |
795 | |
796 // For eliminating dynamic_cast | |
72 | 797 override TypeBasic isTypeBasic() |
0 | 798 { |
799 return this; | |
800 } | |
22
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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801 } |