1 //
2 // Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
3 // Copyright (C) 2013 LunarG, Inc.
4 // Copyright (C) 2017 ARM Limited.
5 // Copyright (C) 2020 Google, Inc.
6 // Modifications Copyright (C) 2020 Advanced Micro Devices, Inc. All rights reserved.
7 //
8 // All rights reserved.
9 //
10 // Redistribution and use in source and binary forms, with or without
11 // modification, are permitted provided that the following conditions
12 // are met:
13 //
14 // Redistributions of source code must retain the above copyright
15 // notice, this list of conditions and the following disclaimer.
16 //
17 // Redistributions in binary form must reproduce the above
18 // copyright notice, this list of conditions and the following
19 // disclaimer in the documentation and/or other materials provided
20 // with the distribution.
21 //
22 // Neither the name of 3Dlabs Inc. Ltd. nor the names of its
23 // contributors may be used to endorse or promote products derived
24 // from this software without specific prior written permission.
25 //
26 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
29 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
30 // COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
31 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
32 // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
33 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
34 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
36 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 // POSSIBILITY OF SUCH DAMAGE.
38 //
39
40 //
41 // GLSL scanning, leveraging the scanning done by the preprocessor.
42 //
43
44 #include <cstring>
45 #include <unordered_map>
46 #include <unordered_set>
47
48 #include "../Include/Types.h"
49 #include "SymbolTable.h"
50 #include "ParseHelper.h"
51 #include "attribute.h"
52 #include "glslang_tab.cpp.h"
53 #include "ScanContext.h"
54 #include "Scan.h"
55
56 // preprocessor includes
57 #include "preprocessor/PpContext.h"
58 #include "preprocessor/PpTokens.h"
59
60 // Required to avoid missing prototype warnings for some compilers
61 int yylex(YYSTYPE*, glslang::TParseContext&);
62
63 namespace glslang {
64
65 // read past any white space
consumeWhiteSpace(bool & foundNonSpaceTab)66 void TInputScanner::consumeWhiteSpace(bool& foundNonSpaceTab)
67 {
68 int c = peek(); // don't accidentally consume anything other than whitespace
69 while (c == ' ' || c == '\t' || c == '\r' || c == '\n') {
70 if (c == '\r' || c == '\n')
71 foundNonSpaceTab = true;
72 get();
73 c = peek();
74 }
75 }
76
77 // return true if a comment was actually consumed
consumeComment()78 bool TInputScanner::consumeComment()
79 {
80 if (peek() != '/')
81 return false;
82
83 get(); // consume the '/'
84 int c = peek();
85 if (c == '/') {
86
87 // a '//' style comment
88 get(); // consume the second '/'
89 c = get();
90 do {
91 while (c != EndOfInput && c != '\\' && c != '\r' && c != '\n')
92 c = get();
93
94 if (c == EndOfInput || c == '\r' || c == '\n') {
95 while (c == '\r' || c == '\n')
96 c = get();
97
98 // we reached the end of the comment
99 break;
100 } else {
101 // it's a '\', so we need to keep going, after skipping what's escaped
102
103 // read the skipped character
104 c = get();
105
106 // if it's a two-character newline, skip both characters
107 if (c == '\r' && peek() == '\n')
108 get();
109 c = get();
110 }
111 } while (true);
112
113 // put back the last non-comment character
114 if (c != EndOfInput)
115 unget();
116
117 return true;
118 } else if (c == '*') {
119
120 // a '/*' style comment
121 get(); // consume the '*'
122 c = get();
123 do {
124 while (c != EndOfInput && c != '*')
125 c = get();
126 if (c == '*') {
127 c = get();
128 if (c == '/')
129 break; // end of comment
130 // not end of comment
131 } else // end of input
132 break;
133 } while (true);
134
135 return true;
136 } else {
137 // it's not a comment, put the '/' back
138 unget();
139
140 return false;
141 }
142 }
143
144 // skip whitespace, then skip a comment, rinse, repeat
consumeWhitespaceComment(bool & foundNonSpaceTab)145 void TInputScanner::consumeWhitespaceComment(bool& foundNonSpaceTab)
146 {
147 do {
148 consumeWhiteSpace(foundNonSpaceTab);
149
150 // if not starting a comment now, then done
151 int c = peek();
152 if (c != '/' || c == EndOfInput)
153 return;
154
155 // skip potential comment
156 foundNonSpaceTab = true;
157 if (! consumeComment())
158 return;
159
160 } while (true);
161 }
162
163 // Returns true if there was non-white space (e.g., a comment, newline) before the #version
164 // or no #version was found; otherwise, returns false. There is no error case, it always
165 // succeeds, but will leave version == 0 if no #version was found.
166 //
167 // Sets notFirstToken based on whether tokens (beyond white space and comments)
168 // appeared before the #version.
169 //
170 // N.B. does not attempt to leave input in any particular known state. The assumption
171 // is that scanning will start anew, following the rules for the chosen version/profile,
172 // and with a corresponding parsing context.
173 //
scanVersion(int & version,EProfile & profile,bool & notFirstToken)174 bool TInputScanner::scanVersion(int& version, EProfile& profile, bool& notFirstToken)
175 {
176 // This function doesn't have to get all the semantics correct,
177 // just find the #version if there is a correct one present.
178 // The preprocessor will have the responsibility of getting all the semantics right.
179
180 bool versionNotFirst = false; // means not first WRT comments and white space, nothing more
181 notFirstToken = false; // means not first WRT to real tokens
182 version = 0; // means not found
183 profile = ENoProfile;
184
185 bool foundNonSpaceTab = false;
186 bool lookingInMiddle = false;
187 int c;
188 do {
189 if (lookingInMiddle) {
190 notFirstToken = true;
191 // make forward progress by finishing off the current line plus extra new lines
192 if (peek() != '\n' && peek() != '\r') {
193 do {
194 c = get();
195 } while (c != EndOfInput && c != '\n' && c != '\r');
196 }
197 while (peek() == '\n' || peek() == '\r')
198 get();
199 if (peek() == EndOfInput)
200 return true;
201 }
202 lookingInMiddle = true;
203
204 // Nominal start, skipping the desktop allowed comments and white space, but tracking if
205 // something else was found for ES:
206 consumeWhitespaceComment(foundNonSpaceTab);
207 if (foundNonSpaceTab)
208 versionNotFirst = true;
209
210 // "#"
211 if (get() != '#') {
212 versionNotFirst = true;
213 continue;
214 }
215
216 // whitespace
217 do {
218 c = get();
219 } while (c == ' ' || c == '\t');
220
221 // "version"
222 if ( c != 'v' ||
223 get() != 'e' ||
224 get() != 'r' ||
225 get() != 's' ||
226 get() != 'i' ||
227 get() != 'o' ||
228 get() != 'n') {
229 versionNotFirst = true;
230 continue;
231 }
232
233 // whitespace
234 do {
235 c = get();
236 } while (c == ' ' || c == '\t');
237
238 // version number
239 while (c >= '0' && c <= '9') {
240 version = 10 * version + (c - '0');
241 c = get();
242 }
243 if (version == 0) {
244 versionNotFirst = true;
245 continue;
246 }
247
248 // whitespace
249 while (c == ' ' || c == '\t')
250 c = get();
251
252 // profile
253 const int maxProfileLength = 13; // not including any 0
254 char profileString[maxProfileLength];
255 int profileLength;
256 for (profileLength = 0; profileLength < maxProfileLength; ++profileLength) {
257 if (c == EndOfInput || c == ' ' || c == '\t' || c == '\n' || c == '\r')
258 break;
259 profileString[profileLength] = (char)c;
260 c = get();
261 }
262 if (c != EndOfInput && c != ' ' && c != '\t' && c != '\n' && c != '\r') {
263 versionNotFirst = true;
264 continue;
265 }
266
267 if (profileLength == 2 && strncmp(profileString, "es", profileLength) == 0)
268 profile = EEsProfile;
269 else if (profileLength == 4 && strncmp(profileString, "core", profileLength) == 0)
270 profile = ECoreProfile;
271 else if (profileLength == 13 && strncmp(profileString, "compatibility", profileLength) == 0)
272 profile = ECompatibilityProfile;
273
274 return versionNotFirst;
275 } while (true);
276 }
277
278 // Fill this in when doing glslang-level scanning, to hand back to the parser.
279 class TParserToken {
280 public:
TParserToken(YYSTYPE & b)281 explicit TParserToken(YYSTYPE& b) : sType(b) { }
282
283 YYSTYPE& sType;
284 protected:
285 TParserToken(TParserToken&);
286 TParserToken& operator=(TParserToken&);
287 };
288
289 } // end namespace glslang
290
291 // This is the function the glslang parser (i.e., bison) calls to get its next token
yylex(YYSTYPE * glslangTokenDesc,glslang::TParseContext & parseContext)292 int yylex(YYSTYPE* glslangTokenDesc, glslang::TParseContext& parseContext)
293 {
294 glslang::TParserToken token(*glslangTokenDesc);
295
296 return parseContext.getScanContext()->tokenize(parseContext.getPpContext(), token);
297 }
298
299 namespace {
300
301 struct str_eq
302 {
operator ()__anonebfa75470111::str_eq303 bool operator()(const char* lhs, const char* rhs) const
304 {
305 return strcmp(lhs, rhs) == 0;
306 }
307 };
308
309 struct str_hash
310 {
operator ()__anonebfa75470111::str_hash311 size_t operator()(const char* str) const
312 {
313 // djb2
314 unsigned long hash = 5381;
315 int c;
316
317 while ((c = *str++) != 0)
318 hash = ((hash << 5) + hash) + c;
319
320 return hash;
321 }
322 };
323
324 // A single global usable by all threads, by all versions, by all languages.
325 // After a single process-level initialization, this is read only and thread safe
326 std::unordered_map<const char*, int, str_hash, str_eq>* KeywordMap = nullptr;
327 #ifndef GLSLANG_WEB
328 std::unordered_set<const char*, str_hash, str_eq>* ReservedSet = nullptr;
329 #endif
330
331 };
332
333 namespace glslang {
334
fillInKeywordMap()335 void TScanContext::fillInKeywordMap()
336 {
337 if (KeywordMap != nullptr) {
338 // this is really an error, as this should called only once per process
339 // but, the only risk is if two threads called simultaneously
340 return;
341 }
342 KeywordMap = new std::unordered_map<const char*, int, str_hash, str_eq>;
343
344 (*KeywordMap)["const"] = CONST;
345 (*KeywordMap)["uniform"] = UNIFORM;
346 (*KeywordMap)["buffer"] = BUFFER;
347 (*KeywordMap)["in"] = IN;
348 (*KeywordMap)["out"] = OUT;
349 (*KeywordMap)["smooth"] = SMOOTH;
350 (*KeywordMap)["flat"] = FLAT;
351 (*KeywordMap)["centroid"] = CENTROID;
352 (*KeywordMap)["invariant"] = INVARIANT;
353 (*KeywordMap)["packed"] = PACKED;
354 (*KeywordMap)["resource"] = RESOURCE;
355 (*KeywordMap)["inout"] = INOUT;
356 (*KeywordMap)["struct"] = STRUCT;
357 (*KeywordMap)["break"] = BREAK;
358 (*KeywordMap)["continue"] = CONTINUE;
359 (*KeywordMap)["do"] = DO;
360 (*KeywordMap)["for"] = FOR;
361 (*KeywordMap)["while"] = WHILE;
362 (*KeywordMap)["switch"] = SWITCH;
363 (*KeywordMap)["case"] = CASE;
364 (*KeywordMap)["default"] = DEFAULT;
365 (*KeywordMap)["if"] = IF;
366 (*KeywordMap)["else"] = ELSE;
367 (*KeywordMap)["discard"] = DISCARD;
368 (*KeywordMap)["terminateInvocation"] = TERMINATE_INVOCATION;
369 (*KeywordMap)["terminateRayEXT"] = TERMINATE_RAY;
370 (*KeywordMap)["ignoreIntersectionEXT"] = IGNORE_INTERSECTION;
371 (*KeywordMap)["return"] = RETURN;
372 (*KeywordMap)["void"] = VOID;
373 (*KeywordMap)["bool"] = BOOL;
374 (*KeywordMap)["float"] = FLOAT;
375 (*KeywordMap)["int"] = INT;
376 (*KeywordMap)["bvec2"] = BVEC2;
377 (*KeywordMap)["bvec3"] = BVEC3;
378 (*KeywordMap)["bvec4"] = BVEC4;
379 (*KeywordMap)["vec2"] = VEC2;
380 (*KeywordMap)["vec3"] = VEC3;
381 (*KeywordMap)["vec4"] = VEC4;
382 (*KeywordMap)["ivec2"] = IVEC2;
383 (*KeywordMap)["ivec3"] = IVEC3;
384 (*KeywordMap)["ivec4"] = IVEC4;
385 (*KeywordMap)["mat2"] = MAT2;
386 (*KeywordMap)["mat3"] = MAT3;
387 (*KeywordMap)["mat4"] = MAT4;
388 (*KeywordMap)["true"] = BOOLCONSTANT;
389 (*KeywordMap)["false"] = BOOLCONSTANT;
390 (*KeywordMap)["layout"] = LAYOUT;
391 (*KeywordMap)["shared"] = SHARED;
392 (*KeywordMap)["highp"] = HIGH_PRECISION;
393 (*KeywordMap)["mediump"] = MEDIUM_PRECISION;
394 (*KeywordMap)["lowp"] = LOW_PRECISION;
395 (*KeywordMap)["superp"] = SUPERP;
396 (*KeywordMap)["precision"] = PRECISION;
397 (*KeywordMap)["mat2x2"] = MAT2X2;
398 (*KeywordMap)["mat2x3"] = MAT2X3;
399 (*KeywordMap)["mat2x4"] = MAT2X4;
400 (*KeywordMap)["mat3x2"] = MAT3X2;
401 (*KeywordMap)["mat3x3"] = MAT3X3;
402 (*KeywordMap)["mat3x4"] = MAT3X4;
403 (*KeywordMap)["mat4x2"] = MAT4X2;
404 (*KeywordMap)["mat4x3"] = MAT4X3;
405 (*KeywordMap)["mat4x4"] = MAT4X4;
406 (*KeywordMap)["uint"] = UINT;
407 (*KeywordMap)["uvec2"] = UVEC2;
408 (*KeywordMap)["uvec3"] = UVEC3;
409 (*KeywordMap)["uvec4"] = UVEC4;
410
411 #ifndef GLSLANG_WEB
412 (*KeywordMap)["nonuniformEXT"] = NONUNIFORM;
413 (*KeywordMap)["demote"] = DEMOTE;
414 (*KeywordMap)["attribute"] = ATTRIBUTE;
415 (*KeywordMap)["varying"] = VARYING;
416 (*KeywordMap)["noperspective"] = NOPERSPECTIVE;
417 (*KeywordMap)["coherent"] = COHERENT;
418 (*KeywordMap)["devicecoherent"] = DEVICECOHERENT;
419 (*KeywordMap)["queuefamilycoherent"] = QUEUEFAMILYCOHERENT;
420 (*KeywordMap)["workgroupcoherent"] = WORKGROUPCOHERENT;
421 (*KeywordMap)["subgroupcoherent"] = SUBGROUPCOHERENT;
422 (*KeywordMap)["shadercallcoherent"] = SHADERCALLCOHERENT;
423 (*KeywordMap)["nonprivate"] = NONPRIVATE;
424 (*KeywordMap)["restrict"] = RESTRICT;
425 (*KeywordMap)["readonly"] = READONLY;
426 (*KeywordMap)["writeonly"] = WRITEONLY;
427 (*KeywordMap)["atomic_uint"] = ATOMIC_UINT;
428 (*KeywordMap)["volatile"] = VOLATILE;
429 (*KeywordMap)["patch"] = PATCH;
430 (*KeywordMap)["sample"] = SAMPLE;
431 (*KeywordMap)["subroutine"] = SUBROUTINE;
432 (*KeywordMap)["dmat2"] = DMAT2;
433 (*KeywordMap)["dmat3"] = DMAT3;
434 (*KeywordMap)["dmat4"] = DMAT4;
435 (*KeywordMap)["dmat2x2"] = DMAT2X2;
436 (*KeywordMap)["dmat2x3"] = DMAT2X3;
437 (*KeywordMap)["dmat2x4"] = DMAT2X4;
438 (*KeywordMap)["dmat3x2"] = DMAT3X2;
439 (*KeywordMap)["dmat3x3"] = DMAT3X3;
440 (*KeywordMap)["dmat3x4"] = DMAT3X4;
441 (*KeywordMap)["dmat4x2"] = DMAT4X2;
442 (*KeywordMap)["dmat4x3"] = DMAT4X3;
443 (*KeywordMap)["dmat4x4"] = DMAT4X4;
444 (*KeywordMap)["image1D"] = IMAGE1D;
445 (*KeywordMap)["iimage1D"] = IIMAGE1D;
446 (*KeywordMap)["uimage1D"] = UIMAGE1D;
447 (*KeywordMap)["image2D"] = IMAGE2D;
448 (*KeywordMap)["iimage2D"] = IIMAGE2D;
449 (*KeywordMap)["uimage2D"] = UIMAGE2D;
450 (*KeywordMap)["image3D"] = IMAGE3D;
451 (*KeywordMap)["iimage3D"] = IIMAGE3D;
452 (*KeywordMap)["uimage3D"] = UIMAGE3D;
453 (*KeywordMap)["image2DRect"] = IMAGE2DRECT;
454 (*KeywordMap)["iimage2DRect"] = IIMAGE2DRECT;
455 (*KeywordMap)["uimage2DRect"] = UIMAGE2DRECT;
456 (*KeywordMap)["imageCube"] = IMAGECUBE;
457 (*KeywordMap)["iimageCube"] = IIMAGECUBE;
458 (*KeywordMap)["uimageCube"] = UIMAGECUBE;
459 (*KeywordMap)["imageBuffer"] = IMAGEBUFFER;
460 (*KeywordMap)["iimageBuffer"] = IIMAGEBUFFER;
461 (*KeywordMap)["uimageBuffer"] = UIMAGEBUFFER;
462 (*KeywordMap)["image1DArray"] = IMAGE1DARRAY;
463 (*KeywordMap)["iimage1DArray"] = IIMAGE1DARRAY;
464 (*KeywordMap)["uimage1DArray"] = UIMAGE1DARRAY;
465 (*KeywordMap)["image2DArray"] = IMAGE2DARRAY;
466 (*KeywordMap)["iimage2DArray"] = IIMAGE2DARRAY;
467 (*KeywordMap)["uimage2DArray"] = UIMAGE2DARRAY;
468 (*KeywordMap)["imageCubeArray"] = IMAGECUBEARRAY;
469 (*KeywordMap)["iimageCubeArray"] = IIMAGECUBEARRAY;
470 (*KeywordMap)["uimageCubeArray"] = UIMAGECUBEARRAY;
471 (*KeywordMap)["image2DMS"] = IMAGE2DMS;
472 (*KeywordMap)["iimage2DMS"] = IIMAGE2DMS;
473 (*KeywordMap)["uimage2DMS"] = UIMAGE2DMS;
474 (*KeywordMap)["image2DMSArray"] = IMAGE2DMSARRAY;
475 (*KeywordMap)["iimage2DMSArray"] = IIMAGE2DMSARRAY;
476 (*KeywordMap)["uimage2DMSArray"] = UIMAGE2DMSARRAY;
477 (*KeywordMap)["i64image1D"] = I64IMAGE1D;
478 (*KeywordMap)["u64image1D"] = U64IMAGE1D;
479 (*KeywordMap)["i64image2D"] = I64IMAGE2D;
480 (*KeywordMap)["u64image2D"] = U64IMAGE2D;
481 (*KeywordMap)["i64image3D"] = I64IMAGE3D;
482 (*KeywordMap)["u64image3D"] = U64IMAGE3D;
483 (*KeywordMap)["i64image2DRect"] = I64IMAGE2DRECT;
484 (*KeywordMap)["u64image2DRect"] = U64IMAGE2DRECT;
485 (*KeywordMap)["i64imageCube"] = I64IMAGECUBE;
486 (*KeywordMap)["u64imageCube"] = U64IMAGECUBE;
487 (*KeywordMap)["i64imageBuffer"] = I64IMAGEBUFFER;
488 (*KeywordMap)["u64imageBuffer"] = U64IMAGEBUFFER;
489 (*KeywordMap)["i64image1DArray"] = I64IMAGE1DARRAY;
490 (*KeywordMap)["u64image1DArray"] = U64IMAGE1DARRAY;
491 (*KeywordMap)["i64image2DArray"] = I64IMAGE2DARRAY;
492 (*KeywordMap)["u64image2DArray"] = U64IMAGE2DARRAY;
493 (*KeywordMap)["i64imageCubeArray"] = I64IMAGECUBEARRAY;
494 (*KeywordMap)["u64imageCubeArray"] = U64IMAGECUBEARRAY;
495 (*KeywordMap)["i64image2DMS"] = I64IMAGE2DMS;
496 (*KeywordMap)["u64image2DMS"] = U64IMAGE2DMS;
497 (*KeywordMap)["i64image2DMSArray"] = I64IMAGE2DMSARRAY;
498 (*KeywordMap)["u64image2DMSArray"] = U64IMAGE2DMSARRAY;
499 (*KeywordMap)["double"] = DOUBLE;
500 (*KeywordMap)["dvec2"] = DVEC2;
501 (*KeywordMap)["dvec3"] = DVEC3;
502 (*KeywordMap)["dvec4"] = DVEC4;
503 (*KeywordMap)["int64_t"] = INT64_T;
504 (*KeywordMap)["uint64_t"] = UINT64_T;
505 (*KeywordMap)["i64vec2"] = I64VEC2;
506 (*KeywordMap)["i64vec3"] = I64VEC3;
507 (*KeywordMap)["i64vec4"] = I64VEC4;
508 (*KeywordMap)["u64vec2"] = U64VEC2;
509 (*KeywordMap)["u64vec3"] = U64VEC3;
510 (*KeywordMap)["u64vec4"] = U64VEC4;
511
512 // GL_EXT_shader_explicit_arithmetic_types
513 (*KeywordMap)["int8_t"] = INT8_T;
514 (*KeywordMap)["i8vec2"] = I8VEC2;
515 (*KeywordMap)["i8vec3"] = I8VEC3;
516 (*KeywordMap)["i8vec4"] = I8VEC4;
517 (*KeywordMap)["uint8_t"] = UINT8_T;
518 (*KeywordMap)["u8vec2"] = U8VEC2;
519 (*KeywordMap)["u8vec3"] = U8VEC3;
520 (*KeywordMap)["u8vec4"] = U8VEC4;
521
522 (*KeywordMap)["int16_t"] = INT16_T;
523 (*KeywordMap)["i16vec2"] = I16VEC2;
524 (*KeywordMap)["i16vec3"] = I16VEC3;
525 (*KeywordMap)["i16vec4"] = I16VEC4;
526 (*KeywordMap)["uint16_t"] = UINT16_T;
527 (*KeywordMap)["u16vec2"] = U16VEC2;
528 (*KeywordMap)["u16vec3"] = U16VEC3;
529 (*KeywordMap)["u16vec4"] = U16VEC4;
530
531 (*KeywordMap)["int32_t"] = INT32_T;
532 (*KeywordMap)["i32vec2"] = I32VEC2;
533 (*KeywordMap)["i32vec3"] = I32VEC3;
534 (*KeywordMap)["i32vec4"] = I32VEC4;
535 (*KeywordMap)["uint32_t"] = UINT32_T;
536 (*KeywordMap)["u32vec2"] = U32VEC2;
537 (*KeywordMap)["u32vec3"] = U32VEC3;
538 (*KeywordMap)["u32vec4"] = U32VEC4;
539
540 (*KeywordMap)["float16_t"] = FLOAT16_T;
541 (*KeywordMap)["f16vec2"] = F16VEC2;
542 (*KeywordMap)["f16vec3"] = F16VEC3;
543 (*KeywordMap)["f16vec4"] = F16VEC4;
544 (*KeywordMap)["f16mat2"] = F16MAT2;
545 (*KeywordMap)["f16mat3"] = F16MAT3;
546 (*KeywordMap)["f16mat4"] = F16MAT4;
547 (*KeywordMap)["f16mat2x2"] = F16MAT2X2;
548 (*KeywordMap)["f16mat2x3"] = F16MAT2X3;
549 (*KeywordMap)["f16mat2x4"] = F16MAT2X4;
550 (*KeywordMap)["f16mat3x2"] = F16MAT3X2;
551 (*KeywordMap)["f16mat3x3"] = F16MAT3X3;
552 (*KeywordMap)["f16mat3x4"] = F16MAT3X4;
553 (*KeywordMap)["f16mat4x2"] = F16MAT4X2;
554 (*KeywordMap)["f16mat4x3"] = F16MAT4X3;
555 (*KeywordMap)["f16mat4x4"] = F16MAT4X4;
556
557 (*KeywordMap)["float32_t"] = FLOAT32_T;
558 (*KeywordMap)["f32vec2"] = F32VEC2;
559 (*KeywordMap)["f32vec3"] = F32VEC3;
560 (*KeywordMap)["f32vec4"] = F32VEC4;
561 (*KeywordMap)["f32mat2"] = F32MAT2;
562 (*KeywordMap)["f32mat3"] = F32MAT3;
563 (*KeywordMap)["f32mat4"] = F32MAT4;
564 (*KeywordMap)["f32mat2x2"] = F32MAT2X2;
565 (*KeywordMap)["f32mat2x3"] = F32MAT2X3;
566 (*KeywordMap)["f32mat2x4"] = F32MAT2X4;
567 (*KeywordMap)["f32mat3x2"] = F32MAT3X2;
568 (*KeywordMap)["f32mat3x3"] = F32MAT3X3;
569 (*KeywordMap)["f32mat3x4"] = F32MAT3X4;
570 (*KeywordMap)["f32mat4x2"] = F32MAT4X2;
571 (*KeywordMap)["f32mat4x3"] = F32MAT4X3;
572 (*KeywordMap)["f32mat4x4"] = F32MAT4X4;
573 (*KeywordMap)["float64_t"] = FLOAT64_T;
574 (*KeywordMap)["f64vec2"] = F64VEC2;
575 (*KeywordMap)["f64vec3"] = F64VEC3;
576 (*KeywordMap)["f64vec4"] = F64VEC4;
577 (*KeywordMap)["f64mat2"] = F64MAT2;
578 (*KeywordMap)["f64mat3"] = F64MAT3;
579 (*KeywordMap)["f64mat4"] = F64MAT4;
580 (*KeywordMap)["f64mat2x2"] = F64MAT2X2;
581 (*KeywordMap)["f64mat2x3"] = F64MAT2X3;
582 (*KeywordMap)["f64mat2x4"] = F64MAT2X4;
583 (*KeywordMap)["f64mat3x2"] = F64MAT3X2;
584 (*KeywordMap)["f64mat3x3"] = F64MAT3X3;
585 (*KeywordMap)["f64mat3x4"] = F64MAT3X4;
586 (*KeywordMap)["f64mat4x2"] = F64MAT4X2;
587 (*KeywordMap)["f64mat4x3"] = F64MAT4X3;
588 (*KeywordMap)["f64mat4x4"] = F64MAT4X4;
589 #endif
590
591 (*KeywordMap)["sampler2D"] = SAMPLER2D;
592 (*KeywordMap)["samplerCube"] = SAMPLERCUBE;
593 (*KeywordMap)["samplerCubeShadow"] = SAMPLERCUBESHADOW;
594 (*KeywordMap)["sampler2DArray"] = SAMPLER2DARRAY;
595 (*KeywordMap)["sampler2DArrayShadow"] = SAMPLER2DARRAYSHADOW;
596 (*KeywordMap)["isampler2D"] = ISAMPLER2D;
597 (*KeywordMap)["isampler3D"] = ISAMPLER3D;
598 (*KeywordMap)["isamplerCube"] = ISAMPLERCUBE;
599 (*KeywordMap)["isampler2DArray"] = ISAMPLER2DARRAY;
600 (*KeywordMap)["usampler2D"] = USAMPLER2D;
601 (*KeywordMap)["usampler3D"] = USAMPLER3D;
602 (*KeywordMap)["usamplerCube"] = USAMPLERCUBE;
603 (*KeywordMap)["usampler2DArray"] = USAMPLER2DARRAY;
604 (*KeywordMap)["sampler3D"] = SAMPLER3D;
605 (*KeywordMap)["sampler2DShadow"] = SAMPLER2DSHADOW;
606
607 (*KeywordMap)["texture2D"] = TEXTURE2D;
608 (*KeywordMap)["textureCube"] = TEXTURECUBE;
609 (*KeywordMap)["texture2DArray"] = TEXTURE2DARRAY;
610 (*KeywordMap)["itexture2D"] = ITEXTURE2D;
611 (*KeywordMap)["itexture3D"] = ITEXTURE3D;
612 (*KeywordMap)["itextureCube"] = ITEXTURECUBE;
613 (*KeywordMap)["itexture2DArray"] = ITEXTURE2DARRAY;
614 (*KeywordMap)["utexture2D"] = UTEXTURE2D;
615 (*KeywordMap)["utexture3D"] = UTEXTURE3D;
616 (*KeywordMap)["utextureCube"] = UTEXTURECUBE;
617 (*KeywordMap)["utexture2DArray"] = UTEXTURE2DARRAY;
618 (*KeywordMap)["texture3D"] = TEXTURE3D;
619
620 (*KeywordMap)["sampler"] = SAMPLER;
621 (*KeywordMap)["samplerShadow"] = SAMPLERSHADOW;
622
623 #ifndef GLSLANG_WEB
624 (*KeywordMap)["textureCubeArray"] = TEXTURECUBEARRAY;
625 (*KeywordMap)["itextureCubeArray"] = ITEXTURECUBEARRAY;
626 (*KeywordMap)["utextureCubeArray"] = UTEXTURECUBEARRAY;
627 (*KeywordMap)["samplerCubeArray"] = SAMPLERCUBEARRAY;
628 (*KeywordMap)["samplerCubeArrayShadow"] = SAMPLERCUBEARRAYSHADOW;
629 (*KeywordMap)["isamplerCubeArray"] = ISAMPLERCUBEARRAY;
630 (*KeywordMap)["usamplerCubeArray"] = USAMPLERCUBEARRAY;
631 (*KeywordMap)["sampler1DArrayShadow"] = SAMPLER1DARRAYSHADOW;
632 (*KeywordMap)["isampler1DArray"] = ISAMPLER1DARRAY;
633 (*KeywordMap)["usampler1D"] = USAMPLER1D;
634 (*KeywordMap)["isampler1D"] = ISAMPLER1D;
635 (*KeywordMap)["usampler1DArray"] = USAMPLER1DARRAY;
636 (*KeywordMap)["samplerBuffer"] = SAMPLERBUFFER;
637 (*KeywordMap)["isampler2DRect"] = ISAMPLER2DRECT;
638 (*KeywordMap)["usampler2DRect"] = USAMPLER2DRECT;
639 (*KeywordMap)["isamplerBuffer"] = ISAMPLERBUFFER;
640 (*KeywordMap)["usamplerBuffer"] = USAMPLERBUFFER;
641 (*KeywordMap)["sampler2DMS"] = SAMPLER2DMS;
642 (*KeywordMap)["isampler2DMS"] = ISAMPLER2DMS;
643 (*KeywordMap)["usampler2DMS"] = USAMPLER2DMS;
644 (*KeywordMap)["sampler2DMSArray"] = SAMPLER2DMSARRAY;
645 (*KeywordMap)["isampler2DMSArray"] = ISAMPLER2DMSARRAY;
646 (*KeywordMap)["usampler2DMSArray"] = USAMPLER2DMSARRAY;
647 (*KeywordMap)["sampler1D"] = SAMPLER1D;
648 (*KeywordMap)["sampler1DShadow"] = SAMPLER1DSHADOW;
649 (*KeywordMap)["sampler2DRect"] = SAMPLER2DRECT;
650 (*KeywordMap)["sampler2DRectShadow"] = SAMPLER2DRECTSHADOW;
651 (*KeywordMap)["sampler1DArray"] = SAMPLER1DARRAY;
652
653 (*KeywordMap)["samplerExternalOES"] = SAMPLEREXTERNALOES; // GL_OES_EGL_image_external
654
655 (*KeywordMap)["__samplerExternal2DY2YEXT"] = SAMPLEREXTERNAL2DY2YEXT; // GL_EXT_YUV_target
656
657 (*KeywordMap)["itexture1DArray"] = ITEXTURE1DARRAY;
658 (*KeywordMap)["utexture1D"] = UTEXTURE1D;
659 (*KeywordMap)["itexture1D"] = ITEXTURE1D;
660 (*KeywordMap)["utexture1DArray"] = UTEXTURE1DARRAY;
661 (*KeywordMap)["textureBuffer"] = TEXTUREBUFFER;
662 (*KeywordMap)["itexture2DRect"] = ITEXTURE2DRECT;
663 (*KeywordMap)["utexture2DRect"] = UTEXTURE2DRECT;
664 (*KeywordMap)["itextureBuffer"] = ITEXTUREBUFFER;
665 (*KeywordMap)["utextureBuffer"] = UTEXTUREBUFFER;
666 (*KeywordMap)["texture2DMS"] = TEXTURE2DMS;
667 (*KeywordMap)["itexture2DMS"] = ITEXTURE2DMS;
668 (*KeywordMap)["utexture2DMS"] = UTEXTURE2DMS;
669 (*KeywordMap)["texture2DMSArray"] = TEXTURE2DMSARRAY;
670 (*KeywordMap)["itexture2DMSArray"] = ITEXTURE2DMSARRAY;
671 (*KeywordMap)["utexture2DMSArray"] = UTEXTURE2DMSARRAY;
672 (*KeywordMap)["texture1D"] = TEXTURE1D;
673 (*KeywordMap)["texture2DRect"] = TEXTURE2DRECT;
674 (*KeywordMap)["texture1DArray"] = TEXTURE1DARRAY;
675
676 (*KeywordMap)["subpassInput"] = SUBPASSINPUT;
677 (*KeywordMap)["subpassInputMS"] = SUBPASSINPUTMS;
678 (*KeywordMap)["isubpassInput"] = ISUBPASSINPUT;
679 (*KeywordMap)["isubpassInputMS"] = ISUBPASSINPUTMS;
680 (*KeywordMap)["usubpassInput"] = USUBPASSINPUT;
681 (*KeywordMap)["usubpassInputMS"] = USUBPASSINPUTMS;
682
683 (*KeywordMap)["f16sampler1D"] = F16SAMPLER1D;
684 (*KeywordMap)["f16sampler2D"] = F16SAMPLER2D;
685 (*KeywordMap)["f16sampler3D"] = F16SAMPLER3D;
686 (*KeywordMap)["f16sampler2DRect"] = F16SAMPLER2DRECT;
687 (*KeywordMap)["f16samplerCube"] = F16SAMPLERCUBE;
688 (*KeywordMap)["f16sampler1DArray"] = F16SAMPLER1DARRAY;
689 (*KeywordMap)["f16sampler2DArray"] = F16SAMPLER2DARRAY;
690 (*KeywordMap)["f16samplerCubeArray"] = F16SAMPLERCUBEARRAY;
691 (*KeywordMap)["f16samplerBuffer"] = F16SAMPLERBUFFER;
692 (*KeywordMap)["f16sampler2DMS"] = F16SAMPLER2DMS;
693 (*KeywordMap)["f16sampler2DMSArray"] = F16SAMPLER2DMSARRAY;
694 (*KeywordMap)["f16sampler1DShadow"] = F16SAMPLER1DSHADOW;
695 (*KeywordMap)["f16sampler2DShadow"] = F16SAMPLER2DSHADOW;
696 (*KeywordMap)["f16sampler2DRectShadow"] = F16SAMPLER2DRECTSHADOW;
697 (*KeywordMap)["f16samplerCubeShadow"] = F16SAMPLERCUBESHADOW;
698 (*KeywordMap)["f16sampler1DArrayShadow"] = F16SAMPLER1DARRAYSHADOW;
699 (*KeywordMap)["f16sampler2DArrayShadow"] = F16SAMPLER2DARRAYSHADOW;
700 (*KeywordMap)["f16samplerCubeArrayShadow"] = F16SAMPLERCUBEARRAYSHADOW;
701
702 (*KeywordMap)["f16image1D"] = F16IMAGE1D;
703 (*KeywordMap)["f16image2D"] = F16IMAGE2D;
704 (*KeywordMap)["f16image3D"] = F16IMAGE3D;
705 (*KeywordMap)["f16image2DRect"] = F16IMAGE2DRECT;
706 (*KeywordMap)["f16imageCube"] = F16IMAGECUBE;
707 (*KeywordMap)["f16image1DArray"] = F16IMAGE1DARRAY;
708 (*KeywordMap)["f16image2DArray"] = F16IMAGE2DARRAY;
709 (*KeywordMap)["f16imageCubeArray"] = F16IMAGECUBEARRAY;
710 (*KeywordMap)["f16imageBuffer"] = F16IMAGEBUFFER;
711 (*KeywordMap)["f16image2DMS"] = F16IMAGE2DMS;
712 (*KeywordMap)["f16image2DMSArray"] = F16IMAGE2DMSARRAY;
713
714 (*KeywordMap)["f16texture1D"] = F16TEXTURE1D;
715 (*KeywordMap)["f16texture2D"] = F16TEXTURE2D;
716 (*KeywordMap)["f16texture3D"] = F16TEXTURE3D;
717 (*KeywordMap)["f16texture2DRect"] = F16TEXTURE2DRECT;
718 (*KeywordMap)["f16textureCube"] = F16TEXTURECUBE;
719 (*KeywordMap)["f16texture1DArray"] = F16TEXTURE1DARRAY;
720 (*KeywordMap)["f16texture2DArray"] = F16TEXTURE2DARRAY;
721 (*KeywordMap)["f16textureCubeArray"] = F16TEXTURECUBEARRAY;
722 (*KeywordMap)["f16textureBuffer"] = F16TEXTUREBUFFER;
723 (*KeywordMap)["f16texture2DMS"] = F16TEXTURE2DMS;
724 (*KeywordMap)["f16texture2DMSArray"] = F16TEXTURE2DMSARRAY;
725
726 (*KeywordMap)["f16subpassInput"] = F16SUBPASSINPUT;
727 (*KeywordMap)["f16subpassInputMS"] = F16SUBPASSINPUTMS;
728 (*KeywordMap)["__explicitInterpAMD"] = EXPLICITINTERPAMD;
729 (*KeywordMap)["pervertexNV"] = PERVERTEXNV;
730 (*KeywordMap)["precise"] = PRECISE;
731
732 (*KeywordMap)["rayPayloadNV"] = PAYLOADNV;
733 (*KeywordMap)["rayPayloadEXT"] = PAYLOADEXT;
734 (*KeywordMap)["rayPayloadInNV"] = PAYLOADINNV;
735 (*KeywordMap)["rayPayloadInEXT"] = PAYLOADINEXT;
736 (*KeywordMap)["hitAttributeNV"] = HITATTRNV;
737 (*KeywordMap)["hitAttributeEXT"] = HITATTREXT;
738 (*KeywordMap)["callableDataNV"] = CALLDATANV;
739 (*KeywordMap)["callableDataEXT"] = CALLDATAEXT;
740 (*KeywordMap)["callableDataInNV"] = CALLDATAINNV;
741 (*KeywordMap)["callableDataInEXT"] = CALLDATAINEXT;
742 (*KeywordMap)["accelerationStructureNV"] = ACCSTRUCTNV;
743 (*KeywordMap)["accelerationStructureEXT"] = ACCSTRUCTEXT;
744 (*KeywordMap)["rayQueryEXT"] = RAYQUERYEXT;
745 (*KeywordMap)["perprimitiveNV"] = PERPRIMITIVENV;
746 (*KeywordMap)["perviewNV"] = PERVIEWNV;
747 (*KeywordMap)["taskNV"] = PERTASKNV;
748
749 (*KeywordMap)["fcoopmatNV"] = FCOOPMATNV;
750 (*KeywordMap)["icoopmatNV"] = ICOOPMATNV;
751 (*KeywordMap)["ucoopmatNV"] = UCOOPMATNV;
752
753 ReservedSet = new std::unordered_set<const char*, str_hash, str_eq>;
754
755 ReservedSet->insert("common");
756 ReservedSet->insert("partition");
757 ReservedSet->insert("active");
758 ReservedSet->insert("asm");
759 ReservedSet->insert("class");
760 ReservedSet->insert("union");
761 ReservedSet->insert("enum");
762 ReservedSet->insert("typedef");
763 ReservedSet->insert("template");
764 ReservedSet->insert("this");
765 ReservedSet->insert("goto");
766 ReservedSet->insert("inline");
767 ReservedSet->insert("noinline");
768 ReservedSet->insert("public");
769 ReservedSet->insert("static");
770 ReservedSet->insert("extern");
771 ReservedSet->insert("external");
772 ReservedSet->insert("interface");
773 ReservedSet->insert("long");
774 ReservedSet->insert("short");
775 ReservedSet->insert("half");
776 ReservedSet->insert("fixed");
777 ReservedSet->insert("unsigned");
778 ReservedSet->insert("input");
779 ReservedSet->insert("output");
780 ReservedSet->insert("hvec2");
781 ReservedSet->insert("hvec3");
782 ReservedSet->insert("hvec4");
783 ReservedSet->insert("fvec2");
784 ReservedSet->insert("fvec3");
785 ReservedSet->insert("fvec4");
786 ReservedSet->insert("sampler3DRect");
787 ReservedSet->insert("filter");
788 ReservedSet->insert("sizeof");
789 ReservedSet->insert("cast");
790 ReservedSet->insert("namespace");
791 ReservedSet->insert("using");
792 #endif
793 }
794
deleteKeywordMap()795 void TScanContext::deleteKeywordMap()
796 {
797 delete KeywordMap;
798 KeywordMap = nullptr;
799 #ifndef GLSLANG_WEB
800 delete ReservedSet;
801 ReservedSet = nullptr;
802 #endif
803 }
804
805 // Called by yylex to get the next token.
806 // Returning 0 implies end of input.
tokenize(TPpContext * pp,TParserToken & token)807 int TScanContext::tokenize(TPpContext* pp, TParserToken& token)
808 {
809 do {
810 parserToken = &token;
811 TPpToken ppToken;
812 int token = pp->tokenize(ppToken);
813 if (token == EndOfInput)
814 return 0;
815
816 tokenText = ppToken.name;
817 loc = ppToken.loc;
818 parserToken->sType.lex.loc = loc;
819 switch (token) {
820 case ';': afterType = false; afterBuffer = false; return SEMICOLON;
821 case ',': afterType = false; return COMMA;
822 case ':': return COLON;
823 case '=': afterType = false; return EQUAL;
824 case '(': afterType = false; return LEFT_PAREN;
825 case ')': afterType = false; return RIGHT_PAREN;
826 case '.': field = true; return DOT;
827 case '!': return BANG;
828 case '-': return DASH;
829 case '~': return TILDE;
830 case '+': return PLUS;
831 case '*': return STAR;
832 case '/': return SLASH;
833 case '%': return PERCENT;
834 case '<': return LEFT_ANGLE;
835 case '>': return RIGHT_ANGLE;
836 case '|': return VERTICAL_BAR;
837 case '^': return CARET;
838 case '&': return AMPERSAND;
839 case '?': return QUESTION;
840 case '[': return LEFT_BRACKET;
841 case ']': return RIGHT_BRACKET;
842 case '{': afterStruct = false; afterBuffer = false; return LEFT_BRACE;
843 case '}': return RIGHT_BRACE;
844 case '\\':
845 parseContext.error(loc, "illegal use of escape character", "\\", "");
846 break;
847
848 case PPAtomAddAssign: return ADD_ASSIGN;
849 case PPAtomSubAssign: return SUB_ASSIGN;
850 case PPAtomMulAssign: return MUL_ASSIGN;
851 case PPAtomDivAssign: return DIV_ASSIGN;
852 case PPAtomModAssign: return MOD_ASSIGN;
853
854 case PpAtomRight: return RIGHT_OP;
855 case PpAtomLeft: return LEFT_OP;
856
857 case PpAtomRightAssign: return RIGHT_ASSIGN;
858 case PpAtomLeftAssign: return LEFT_ASSIGN;
859 case PpAtomAndAssign: return AND_ASSIGN;
860 case PpAtomOrAssign: return OR_ASSIGN;
861 case PpAtomXorAssign: return XOR_ASSIGN;
862
863 case PpAtomAnd: return AND_OP;
864 case PpAtomOr: return OR_OP;
865 case PpAtomXor: return XOR_OP;
866
867 case PpAtomEQ: return EQ_OP;
868 case PpAtomGE: return GE_OP;
869 case PpAtomNE: return NE_OP;
870 case PpAtomLE: return LE_OP;
871
872 case PpAtomDecrement: return DEC_OP;
873 case PpAtomIncrement: return INC_OP;
874
875 case PpAtomColonColon:
876 parseContext.error(loc, "not supported", "::", "");
877 break;
878
879 case PpAtomConstString: parserToken->sType.lex.string = NewPoolTString(tokenText); return STRING_LITERAL;
880 case PpAtomConstInt: parserToken->sType.lex.i = ppToken.ival; return INTCONSTANT;
881 case PpAtomConstUint: parserToken->sType.lex.i = ppToken.ival; return UINTCONSTANT;
882 case PpAtomConstFloat: parserToken->sType.lex.d = ppToken.dval; return FLOATCONSTANT;
883 #ifndef GLSLANG_WEB
884 case PpAtomConstInt16: parserToken->sType.lex.i = ppToken.ival; return INT16CONSTANT;
885 case PpAtomConstUint16: parserToken->sType.lex.i = ppToken.ival; return UINT16CONSTANT;
886 case PpAtomConstInt64: parserToken->sType.lex.i64 = ppToken.i64val; return INT64CONSTANT;
887 case PpAtomConstUint64: parserToken->sType.lex.i64 = ppToken.i64val; return UINT64CONSTANT;
888 case PpAtomConstDouble: parserToken->sType.lex.d = ppToken.dval; return DOUBLECONSTANT;
889 case PpAtomConstFloat16: parserToken->sType.lex.d = ppToken.dval; return FLOAT16CONSTANT;
890 #endif
891 case PpAtomIdentifier:
892 {
893 int token = tokenizeIdentifier();
894 field = false;
895 return token;
896 }
897
898 case EndOfInput: return 0;
899
900 default:
901 char buf[2];
902 buf[0] = (char)token;
903 buf[1] = 0;
904 parseContext.error(loc, "unexpected token", buf, "");
905 break;
906 }
907 } while (true);
908 }
909
tokenizeIdentifier()910 int TScanContext::tokenizeIdentifier()
911 {
912 #ifndef GLSLANG_WEB
913 if (ReservedSet->find(tokenText) != ReservedSet->end())
914 return reservedWord();
915 #endif
916
917 auto it = KeywordMap->find(tokenText);
918 if (it == KeywordMap->end()) {
919 // Should have an identifier of some sort
920 return identifierOrType();
921 }
922 keyword = it->second;
923
924 switch (keyword) {
925 case CONST:
926 case UNIFORM:
927 case IN:
928 case OUT:
929 case INOUT:
930 case BREAK:
931 case CONTINUE:
932 case DO:
933 case FOR:
934 case WHILE:
935 case IF:
936 case ELSE:
937 case DISCARD:
938 case RETURN:
939 case CASE:
940 return keyword;
941
942 case TERMINATE_INVOCATION:
943 if (!parseContext.extensionTurnedOn(E_GL_EXT_terminate_invocation))
944 return identifierOrType();
945 return keyword;
946
947 case TERMINATE_RAY:
948 case IGNORE_INTERSECTION:
949 if (!parseContext.extensionTurnedOn(E_GL_EXT_ray_tracing))
950 return identifierOrType();
951 return keyword;
952
953 case BUFFER:
954 afterBuffer = true;
955 if ((parseContext.isEsProfile() && parseContext.version < 310) ||
956 (!parseContext.isEsProfile() && (parseContext.version < 430 &&
957 !parseContext.extensionTurnedOn(E_GL_ARB_shader_storage_buffer_object))))
958 return identifierOrType();
959 return keyword;
960
961 case STRUCT:
962 afterStruct = true;
963 return keyword;
964
965 case SWITCH:
966 case DEFAULT:
967 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
968 (!parseContext.isEsProfile() && parseContext.version < 130))
969 reservedWord();
970 return keyword;
971
972 case VOID:
973 case BOOL:
974 case FLOAT:
975 case INT:
976 case BVEC2:
977 case BVEC3:
978 case BVEC4:
979 case VEC2:
980 case VEC3:
981 case VEC4:
982 case IVEC2:
983 case IVEC3:
984 case IVEC4:
985 case MAT2:
986 case MAT3:
987 case MAT4:
988 case SAMPLER2D:
989 case SAMPLERCUBE:
990 afterType = true;
991 return keyword;
992
993 case BOOLCONSTANT:
994 if (strcmp("true", tokenText) == 0)
995 parserToken->sType.lex.b = true;
996 else
997 parserToken->sType.lex.b = false;
998 return keyword;
999
1000 case SMOOTH:
1001 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1002 (!parseContext.isEsProfile() && parseContext.version < 130))
1003 return identifierOrType();
1004 return keyword;
1005 case FLAT:
1006 if (parseContext.isEsProfile() && parseContext.version < 300)
1007 reservedWord();
1008 else if (!parseContext.isEsProfile() && parseContext.version < 130)
1009 return identifierOrType();
1010 return keyword;
1011 case CENTROID:
1012 if (parseContext.version < 120)
1013 return identifierOrType();
1014 return keyword;
1015 case INVARIANT:
1016 if (!parseContext.isEsProfile() && parseContext.version < 120)
1017 return identifierOrType();
1018 return keyword;
1019 case PACKED:
1020 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1021 (!parseContext.isEsProfile() && parseContext.version < 140))
1022 return reservedWord();
1023 return identifierOrType();
1024
1025 case RESOURCE:
1026 {
1027 bool reserved = (parseContext.isEsProfile() && parseContext.version >= 300) ||
1028 (!parseContext.isEsProfile() && parseContext.version >= 420);
1029 return identifierOrReserved(reserved);
1030 }
1031 case SUPERP:
1032 {
1033 bool reserved = parseContext.isEsProfile() || parseContext.version >= 130;
1034 return identifierOrReserved(reserved);
1035 }
1036
1037 #ifndef GLSLANG_WEB
1038 case NOPERSPECTIVE:
1039 if (parseContext.extensionTurnedOn(E_GL_NV_shader_noperspective_interpolation))
1040 return keyword;
1041 return es30ReservedFromGLSL(130);
1042
1043 case NONUNIFORM:
1044 if (parseContext.extensionTurnedOn(E_GL_EXT_nonuniform_qualifier))
1045 return keyword;
1046 else
1047 return identifierOrType();
1048 case ATTRIBUTE:
1049 case VARYING:
1050 if (parseContext.isEsProfile() && parseContext.version >= 300)
1051 reservedWord();
1052 return keyword;
1053 case PAYLOADNV:
1054 case PAYLOADINNV:
1055 case HITATTRNV:
1056 case CALLDATANV:
1057 case CALLDATAINNV:
1058 case ACCSTRUCTNV:
1059 if (parseContext.symbolTable.atBuiltInLevel() ||
1060 parseContext.extensionTurnedOn(E_GL_NV_ray_tracing))
1061 return keyword;
1062 return identifierOrType();
1063 case PAYLOADEXT:
1064 case PAYLOADINEXT:
1065 case HITATTREXT:
1066 case CALLDATAEXT:
1067 case CALLDATAINEXT:
1068 case ACCSTRUCTEXT:
1069 if (parseContext.symbolTable.atBuiltInLevel() ||
1070 parseContext.extensionTurnedOn(E_GL_EXT_ray_tracing) ||
1071 parseContext.extensionTurnedOn(E_GL_EXT_ray_query))
1072 return keyword;
1073 return identifierOrType();
1074 case RAYQUERYEXT:
1075 if (parseContext.symbolTable.atBuiltInLevel() ||
1076 (!parseContext.isEsProfile() && parseContext.version >= 460
1077 && parseContext.extensionTurnedOn(E_GL_EXT_ray_query)))
1078 return keyword;
1079 return identifierOrType();
1080 case ATOMIC_UINT:
1081 if ((parseContext.isEsProfile() && parseContext.version >= 310) ||
1082 parseContext.extensionTurnedOn(E_GL_ARB_shader_atomic_counters))
1083 return keyword;
1084 return es30ReservedFromGLSL(420);
1085
1086 case COHERENT:
1087 case DEVICECOHERENT:
1088 case QUEUEFAMILYCOHERENT:
1089 case WORKGROUPCOHERENT:
1090 case SUBGROUPCOHERENT:
1091 case SHADERCALLCOHERENT:
1092 case NONPRIVATE:
1093 case RESTRICT:
1094 case READONLY:
1095 case WRITEONLY:
1096 if (parseContext.isEsProfile() && parseContext.version >= 310)
1097 return keyword;
1098 return es30ReservedFromGLSL(parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store) ? 130 : 420);
1099 case VOLATILE:
1100 if (parseContext.isEsProfile() && parseContext.version >= 310)
1101 return keyword;
1102 if (! parseContext.symbolTable.atBuiltInLevel() && (parseContext.isEsProfile() ||
1103 (parseContext.version < 420 && ! parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))))
1104 reservedWord();
1105 return keyword;
1106 case PATCH:
1107 if (parseContext.symbolTable.atBuiltInLevel() ||
1108 (parseContext.isEsProfile() &&
1109 (parseContext.version >= 320 ||
1110 parseContext.extensionsTurnedOn(Num_AEP_tessellation_shader, AEP_tessellation_shader))) ||
1111 (!parseContext.isEsProfile() && parseContext.extensionTurnedOn(E_GL_ARB_tessellation_shader)))
1112 return keyword;
1113
1114 return es30ReservedFromGLSL(400);
1115
1116 case SAMPLE:
1117 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1118 parseContext.extensionsTurnedOn(1, &E_GL_OES_shader_multisample_interpolation))
1119 return keyword;
1120 return es30ReservedFromGLSL(400);
1121
1122 case SUBROUTINE:
1123 return es30ReservedFromGLSL(400);
1124 #endif
1125 case SHARED:
1126 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1127 (!parseContext.isEsProfile() && parseContext.version < 140))
1128 return identifierOrType();
1129 return keyword;
1130 case LAYOUT:
1131 {
1132 const int numLayoutExts = 2;
1133 const char* layoutExts[numLayoutExts] = { E_GL_ARB_shading_language_420pack,
1134 E_GL_ARB_explicit_attrib_location };
1135 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1136 (!parseContext.isEsProfile() && parseContext.version < 140 &&
1137 ! parseContext.extensionsTurnedOn(numLayoutExts, layoutExts)))
1138 return identifierOrType();
1139 return keyword;
1140 }
1141
1142 case HIGH_PRECISION:
1143 case MEDIUM_PRECISION:
1144 case LOW_PRECISION:
1145 case PRECISION:
1146 return precisionKeyword();
1147
1148 case MAT2X2:
1149 case MAT2X3:
1150 case MAT2X4:
1151 case MAT3X2:
1152 case MAT3X3:
1153 case MAT3X4:
1154 case MAT4X2:
1155 case MAT4X3:
1156 case MAT4X4:
1157 return matNxM();
1158
1159 #ifndef GLSLANG_WEB
1160 case DMAT2:
1161 case DMAT3:
1162 case DMAT4:
1163 case DMAT2X2:
1164 case DMAT2X3:
1165 case DMAT2X4:
1166 case DMAT3X2:
1167 case DMAT3X3:
1168 case DMAT3X4:
1169 case DMAT4X2:
1170 case DMAT4X3:
1171 case DMAT4X4:
1172 return dMat();
1173
1174 case IMAGE1D:
1175 case IIMAGE1D:
1176 case UIMAGE1D:
1177 case IMAGE1DARRAY:
1178 case IIMAGE1DARRAY:
1179 case UIMAGE1DARRAY:
1180 case IMAGE2DRECT:
1181 case IIMAGE2DRECT:
1182 case UIMAGE2DRECT:
1183 afterType = true;
1184 return firstGenerationImage(false);
1185
1186 case I64IMAGE1D:
1187 case U64IMAGE1D:
1188 case I64IMAGE1DARRAY:
1189 case U64IMAGE1DARRAY:
1190 case I64IMAGE2DRECT:
1191 case U64IMAGE2DRECT:
1192 afterType = true;
1193 if (parseContext.symbolTable.atBuiltInLevel() ||
1194 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
1195 return firstGenerationImage(false);
1196 }
1197 return identifierOrType();
1198
1199 case IMAGEBUFFER:
1200 case IIMAGEBUFFER:
1201 case UIMAGEBUFFER:
1202 afterType = true;
1203 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1204 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1205 return keyword;
1206 return firstGenerationImage(false);
1207
1208 case I64IMAGEBUFFER:
1209 case U64IMAGEBUFFER:
1210 afterType = true;
1211 if (parseContext.symbolTable.atBuiltInLevel() ||
1212 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
1213 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1214 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1215 return keyword;
1216 return firstGenerationImage(false);
1217 }
1218 return identifierOrType();
1219
1220 case IMAGE2D:
1221 case IIMAGE2D:
1222 case UIMAGE2D:
1223 case IMAGE3D:
1224 case IIMAGE3D:
1225 case UIMAGE3D:
1226 case IMAGECUBE:
1227 case IIMAGECUBE:
1228 case UIMAGECUBE:
1229 case IMAGE2DARRAY:
1230 case IIMAGE2DARRAY:
1231 case UIMAGE2DARRAY:
1232 afterType = true;
1233 return firstGenerationImage(true);
1234
1235 case I64IMAGE2D:
1236 case U64IMAGE2D:
1237 case I64IMAGE3D:
1238 case U64IMAGE3D:
1239 case I64IMAGECUBE:
1240 case U64IMAGECUBE:
1241 case I64IMAGE2DARRAY:
1242 case U64IMAGE2DARRAY:
1243 afterType = true;
1244 if (parseContext.symbolTable.atBuiltInLevel() ||
1245 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64))
1246 return firstGenerationImage(true);
1247 return identifierOrType();
1248
1249 case IMAGECUBEARRAY:
1250 case IIMAGECUBEARRAY:
1251 case UIMAGECUBEARRAY:
1252 afterType = true;
1253 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1254 parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
1255 return keyword;
1256 return secondGenerationImage();
1257
1258 case I64IMAGECUBEARRAY:
1259 case U64IMAGECUBEARRAY:
1260 afterType = true;
1261 if (parseContext.symbolTable.atBuiltInLevel() ||
1262 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
1263 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1264 parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
1265 return keyword;
1266 return secondGenerationImage();
1267 }
1268 return identifierOrType();
1269
1270 case IMAGE2DMS:
1271 case IIMAGE2DMS:
1272 case UIMAGE2DMS:
1273 case IMAGE2DMSARRAY:
1274 case IIMAGE2DMSARRAY:
1275 case UIMAGE2DMSARRAY:
1276 afterType = true;
1277 return secondGenerationImage();
1278
1279 case I64IMAGE2DMS:
1280 case U64IMAGE2DMS:
1281 case I64IMAGE2DMSARRAY:
1282 case U64IMAGE2DMSARRAY:
1283 afterType = true;
1284 if (parseContext.symbolTable.atBuiltInLevel() ||
1285 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
1286 return secondGenerationImage();
1287 }
1288 return identifierOrType();
1289
1290 case DOUBLE:
1291 case DVEC2:
1292 case DVEC3:
1293 case DVEC4:
1294 afterType = true;
1295 if (parseContext.isEsProfile() || parseContext.version < 150 ||
1296 (!parseContext.symbolTable.atBuiltInLevel() &&
1297 (parseContext.version < 400 && !parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64) &&
1298 (parseContext.version < 410 && !parseContext.extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit)))))
1299 reservedWord();
1300 return keyword;
1301
1302 case INT64_T:
1303 case UINT64_T:
1304 case I64VEC2:
1305 case I64VEC3:
1306 case I64VEC4:
1307 case U64VEC2:
1308 case U64VEC3:
1309 case U64VEC4:
1310 afterType = true;
1311 if (parseContext.symbolTable.atBuiltInLevel() ||
1312 parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_int64) ||
1313 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1314 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int64))
1315 return keyword;
1316 return identifierOrType();
1317
1318 case INT8_T:
1319 case UINT8_T:
1320 case I8VEC2:
1321 case I8VEC3:
1322 case I8VEC4:
1323 case U8VEC2:
1324 case U8VEC3:
1325 case U8VEC4:
1326 afterType = true;
1327 if (parseContext.symbolTable.atBuiltInLevel() ||
1328 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1329 parseContext.extensionTurnedOn(E_GL_EXT_shader_8bit_storage) ||
1330 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int8))
1331 return keyword;
1332 return identifierOrType();
1333
1334 case INT16_T:
1335 case UINT16_T:
1336 case I16VEC2:
1337 case I16VEC3:
1338 case I16VEC4:
1339 case U16VEC2:
1340 case U16VEC3:
1341 case U16VEC4:
1342 afterType = true;
1343 if (parseContext.symbolTable.atBuiltInLevel() ||
1344 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_int16) ||
1345 parseContext.extensionTurnedOn(E_GL_EXT_shader_16bit_storage) ||
1346 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1347 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int16))
1348 return keyword;
1349 return identifierOrType();
1350 case INT32_T:
1351 case UINT32_T:
1352 case I32VEC2:
1353 case I32VEC3:
1354 case I32VEC4:
1355 case U32VEC2:
1356 case U32VEC3:
1357 case U32VEC4:
1358 afterType = true;
1359 if (parseContext.symbolTable.atBuiltInLevel() ||
1360 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1361 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int32))
1362 return keyword;
1363 return identifierOrType();
1364 case FLOAT32_T:
1365 case F32VEC2:
1366 case F32VEC3:
1367 case F32VEC4:
1368 case F32MAT2:
1369 case F32MAT3:
1370 case F32MAT4:
1371 case F32MAT2X2:
1372 case F32MAT2X3:
1373 case F32MAT2X4:
1374 case F32MAT3X2:
1375 case F32MAT3X3:
1376 case F32MAT3X4:
1377 case F32MAT4X2:
1378 case F32MAT4X3:
1379 case F32MAT4X4:
1380 afterType = true;
1381 if (parseContext.symbolTable.atBuiltInLevel() ||
1382 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1383 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float32))
1384 return keyword;
1385 return identifierOrType();
1386
1387 case FLOAT64_T:
1388 case F64VEC2:
1389 case F64VEC3:
1390 case F64VEC4:
1391 case F64MAT2:
1392 case F64MAT3:
1393 case F64MAT4:
1394 case F64MAT2X2:
1395 case F64MAT2X3:
1396 case F64MAT2X4:
1397 case F64MAT3X2:
1398 case F64MAT3X3:
1399 case F64MAT3X4:
1400 case F64MAT4X2:
1401 case F64MAT4X3:
1402 case F64MAT4X4:
1403 afterType = true;
1404 if (parseContext.symbolTable.atBuiltInLevel() ||
1405 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1406 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float64))
1407 return keyword;
1408 return identifierOrType();
1409
1410 case FLOAT16_T:
1411 case F16VEC2:
1412 case F16VEC3:
1413 case F16VEC4:
1414 afterType = true;
1415 if (parseContext.symbolTable.atBuiltInLevel() ||
1416 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) ||
1417 parseContext.extensionTurnedOn(E_GL_EXT_shader_16bit_storage) ||
1418 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1419 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float16))
1420 return keyword;
1421
1422 return identifierOrType();
1423
1424 case F16MAT2:
1425 case F16MAT3:
1426 case F16MAT4:
1427 case F16MAT2X2:
1428 case F16MAT2X3:
1429 case F16MAT2X4:
1430 case F16MAT3X2:
1431 case F16MAT3X3:
1432 case F16MAT3X4:
1433 case F16MAT4X2:
1434 case F16MAT4X3:
1435 case F16MAT4X4:
1436 afterType = true;
1437 if (parseContext.symbolTable.atBuiltInLevel() ||
1438 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) ||
1439 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1440 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float16))
1441 return keyword;
1442
1443 return identifierOrType();
1444
1445 case SAMPLERCUBEARRAY:
1446 case SAMPLERCUBEARRAYSHADOW:
1447 case ISAMPLERCUBEARRAY:
1448 case USAMPLERCUBEARRAY:
1449 afterType = true;
1450 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1451 parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
1452 return keyword;
1453 if (parseContext.isEsProfile() || (parseContext.version < 400 && ! parseContext.extensionTurnedOn(E_GL_ARB_texture_cube_map_array)))
1454 reservedWord();
1455 return keyword;
1456
1457 case TEXTURECUBEARRAY:
1458 case ITEXTURECUBEARRAY:
1459 case UTEXTURECUBEARRAY:
1460 if (parseContext.spvVersion.vulkan > 0)
1461 return keyword;
1462 else
1463 return identifierOrType();
1464 #endif
1465
1466 case UINT:
1467 case UVEC2:
1468 case UVEC3:
1469 case UVEC4:
1470 case SAMPLERCUBESHADOW:
1471 case SAMPLER2DARRAY:
1472 case SAMPLER2DARRAYSHADOW:
1473 case ISAMPLER2D:
1474 case ISAMPLER3D:
1475 case ISAMPLERCUBE:
1476 case ISAMPLER2DARRAY:
1477 case USAMPLER2D:
1478 case USAMPLER3D:
1479 case USAMPLERCUBE:
1480 case USAMPLER2DARRAY:
1481 afterType = true;
1482 return nonreservedKeyword(300, 130);
1483
1484 case SAMPLER3D:
1485 afterType = true;
1486 if (parseContext.isEsProfile() && parseContext.version < 300) {
1487 if (!parseContext.extensionTurnedOn(E_GL_OES_texture_3D))
1488 reservedWord();
1489 }
1490 return keyword;
1491
1492 case SAMPLER2DSHADOW:
1493 afterType = true;
1494 if (parseContext.isEsProfile() && parseContext.version < 300) {
1495 if (!parseContext.extensionTurnedOn(E_GL_EXT_shadow_samplers))
1496 reservedWord();
1497 }
1498 return keyword;
1499
1500 case TEXTURE2D:
1501 case TEXTURECUBE:
1502 case TEXTURE2DARRAY:
1503 case ITEXTURE2D:
1504 case ITEXTURE3D:
1505 case ITEXTURECUBE:
1506 case ITEXTURE2DARRAY:
1507 case UTEXTURE2D:
1508 case UTEXTURE3D:
1509 case UTEXTURECUBE:
1510 case UTEXTURE2DARRAY:
1511 case TEXTURE3D:
1512 case SAMPLER:
1513 case SAMPLERSHADOW:
1514 if (parseContext.spvVersion.vulkan > 0)
1515 return keyword;
1516 else
1517 return identifierOrType();
1518
1519 #ifndef GLSLANG_WEB
1520 case ISAMPLER1D:
1521 case ISAMPLER1DARRAY:
1522 case SAMPLER1DARRAYSHADOW:
1523 case USAMPLER1D:
1524 case USAMPLER1DARRAY:
1525 afterType = true;
1526 return es30ReservedFromGLSL(130);
1527 case ISAMPLER2DRECT:
1528 case USAMPLER2DRECT:
1529 afterType = true;
1530 return es30ReservedFromGLSL(140);
1531
1532 case SAMPLERBUFFER:
1533 afterType = true;
1534 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1535 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1536 return keyword;
1537 return es30ReservedFromGLSL(130);
1538
1539 case ISAMPLERBUFFER:
1540 case USAMPLERBUFFER:
1541 afterType = true;
1542 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1543 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1544 return keyword;
1545 return es30ReservedFromGLSL(140);
1546
1547 case SAMPLER2DMS:
1548 case ISAMPLER2DMS:
1549 case USAMPLER2DMS:
1550 afterType = true;
1551 if (parseContext.isEsProfile() && parseContext.version >= 310)
1552 return keyword;
1553 if (!parseContext.isEsProfile() && (parseContext.version > 140 ||
1554 (parseContext.version == 140 && parseContext.extensionsTurnedOn(1, &E_GL_ARB_texture_multisample))))
1555 return keyword;
1556 return es30ReservedFromGLSL(150);
1557
1558 case SAMPLER2DMSARRAY:
1559 case ISAMPLER2DMSARRAY:
1560 case USAMPLER2DMSARRAY:
1561 afterType = true;
1562 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1563 parseContext.extensionsTurnedOn(1, &E_GL_OES_texture_storage_multisample_2d_array))
1564 return keyword;
1565 if (!parseContext.isEsProfile() && (parseContext.version > 140 ||
1566 (parseContext.version == 140 && parseContext.extensionsTurnedOn(1, &E_GL_ARB_texture_multisample))))
1567 return keyword;
1568 return es30ReservedFromGLSL(150);
1569
1570 case SAMPLER1D:
1571 case SAMPLER1DSHADOW:
1572 afterType = true;
1573 if (parseContext.isEsProfile())
1574 reservedWord();
1575 return keyword;
1576
1577 case SAMPLER2DRECT:
1578 case SAMPLER2DRECTSHADOW:
1579 afterType = true;
1580 if (parseContext.isEsProfile())
1581 reservedWord();
1582 else if (parseContext.version < 140 && ! parseContext.symbolTable.atBuiltInLevel() && ! parseContext.extensionTurnedOn(E_GL_ARB_texture_rectangle)) {
1583 if (parseContext.relaxedErrors())
1584 parseContext.requireExtensions(loc, 1, &E_GL_ARB_texture_rectangle, "texture-rectangle sampler keyword");
1585 else
1586 reservedWord();
1587 }
1588 return keyword;
1589
1590 case SAMPLER1DARRAY:
1591 afterType = true;
1592 if (parseContext.isEsProfile() && parseContext.version == 300)
1593 reservedWord();
1594 else if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1595 (!parseContext.isEsProfile() && parseContext.version < 130))
1596 return identifierOrType();
1597 return keyword;
1598
1599 case SAMPLEREXTERNALOES:
1600 afterType = true;
1601 if (parseContext.symbolTable.atBuiltInLevel() ||
1602 parseContext.extensionTurnedOn(E_GL_OES_EGL_image_external) ||
1603 parseContext.extensionTurnedOn(E_GL_OES_EGL_image_external_essl3))
1604 return keyword;
1605 return identifierOrType();
1606
1607 case SAMPLEREXTERNAL2DY2YEXT:
1608 afterType = true;
1609 if (parseContext.symbolTable.atBuiltInLevel() ||
1610 parseContext.extensionTurnedOn(E_GL_EXT_YUV_target))
1611 return keyword;
1612 return identifierOrType();
1613
1614 case ITEXTURE1DARRAY:
1615 case UTEXTURE1D:
1616 case ITEXTURE1D:
1617 case UTEXTURE1DARRAY:
1618 case TEXTUREBUFFER:
1619 case ITEXTURE2DRECT:
1620 case UTEXTURE2DRECT:
1621 case ITEXTUREBUFFER:
1622 case UTEXTUREBUFFER:
1623 case TEXTURE2DMS:
1624 case ITEXTURE2DMS:
1625 case UTEXTURE2DMS:
1626 case TEXTURE2DMSARRAY:
1627 case ITEXTURE2DMSARRAY:
1628 case UTEXTURE2DMSARRAY:
1629 case TEXTURE1D:
1630 case TEXTURE2DRECT:
1631 case TEXTURE1DARRAY:
1632 if (parseContext.spvVersion.vulkan > 0)
1633 return keyword;
1634 else
1635 return identifierOrType();
1636
1637 case SUBPASSINPUT:
1638 case SUBPASSINPUTMS:
1639 case ISUBPASSINPUT:
1640 case ISUBPASSINPUTMS:
1641 case USUBPASSINPUT:
1642 case USUBPASSINPUTMS:
1643 if (parseContext.spvVersion.vulkan > 0)
1644 return keyword;
1645 else
1646 return identifierOrType();
1647
1648 case F16SAMPLER1D:
1649 case F16SAMPLER2D:
1650 case F16SAMPLER3D:
1651 case F16SAMPLER2DRECT:
1652 case F16SAMPLERCUBE:
1653 case F16SAMPLER1DARRAY:
1654 case F16SAMPLER2DARRAY:
1655 case F16SAMPLERCUBEARRAY:
1656 case F16SAMPLERBUFFER:
1657 case F16SAMPLER2DMS:
1658 case F16SAMPLER2DMSARRAY:
1659 case F16SAMPLER1DSHADOW:
1660 case F16SAMPLER2DSHADOW:
1661 case F16SAMPLER1DARRAYSHADOW:
1662 case F16SAMPLER2DARRAYSHADOW:
1663 case F16SAMPLER2DRECTSHADOW:
1664 case F16SAMPLERCUBESHADOW:
1665 case F16SAMPLERCUBEARRAYSHADOW:
1666
1667 case F16IMAGE1D:
1668 case F16IMAGE2D:
1669 case F16IMAGE3D:
1670 case F16IMAGE2DRECT:
1671 case F16IMAGECUBE:
1672 case F16IMAGE1DARRAY:
1673 case F16IMAGE2DARRAY:
1674 case F16IMAGECUBEARRAY:
1675 case F16IMAGEBUFFER:
1676 case F16IMAGE2DMS:
1677 case F16IMAGE2DMSARRAY:
1678
1679 case F16TEXTURE1D:
1680 case F16TEXTURE2D:
1681 case F16TEXTURE3D:
1682 case F16TEXTURE2DRECT:
1683 case F16TEXTURECUBE:
1684 case F16TEXTURE1DARRAY:
1685 case F16TEXTURE2DARRAY:
1686 case F16TEXTURECUBEARRAY:
1687 case F16TEXTUREBUFFER:
1688 case F16TEXTURE2DMS:
1689 case F16TEXTURE2DMSARRAY:
1690
1691 case F16SUBPASSINPUT:
1692 case F16SUBPASSINPUTMS:
1693 afterType = true;
1694 if (parseContext.symbolTable.atBuiltInLevel() ||
1695 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float_fetch))
1696 return keyword;
1697 return identifierOrType();
1698
1699 case EXPLICITINTERPAMD:
1700 if (parseContext.extensionTurnedOn(E_GL_AMD_shader_explicit_vertex_parameter))
1701 return keyword;
1702 return identifierOrType();
1703
1704 case PERVERTEXNV:
1705 if ((!parseContext.isEsProfile() && parseContext.version >= 450) ||
1706 parseContext.extensionTurnedOn(E_GL_NV_fragment_shader_barycentric))
1707 return keyword;
1708 return identifierOrType();
1709
1710 case PRECISE:
1711 if ((parseContext.isEsProfile() &&
1712 (parseContext.version >= 320 || parseContext.extensionsTurnedOn(Num_AEP_gpu_shader5, AEP_gpu_shader5))) ||
1713 (!parseContext.isEsProfile() && parseContext.version >= 400))
1714 return keyword;
1715 if (parseContext.isEsProfile() && parseContext.version == 310) {
1716 reservedWord();
1717 return keyword;
1718 }
1719 return identifierOrType();
1720
1721 case PERPRIMITIVENV:
1722 case PERVIEWNV:
1723 case PERTASKNV:
1724 if ((!parseContext.isEsProfile() && parseContext.version >= 450) ||
1725 (parseContext.isEsProfile() && parseContext.version >= 320) ||
1726 parseContext.extensionTurnedOn(E_GL_NV_mesh_shader))
1727 return keyword;
1728 return identifierOrType();
1729
1730 case FCOOPMATNV:
1731 afterType = true;
1732 if (parseContext.symbolTable.atBuiltInLevel() ||
1733 parseContext.extensionTurnedOn(E_GL_NV_cooperative_matrix))
1734 return keyword;
1735 return identifierOrType();
1736
1737 case UCOOPMATNV:
1738 case ICOOPMATNV:
1739 afterType = true;
1740 if (parseContext.symbolTable.atBuiltInLevel() ||
1741 parseContext.extensionTurnedOn(E_GL_NV_integer_cooperative_matrix))
1742 return keyword;
1743 return identifierOrType();
1744
1745 case DEMOTE:
1746 if (parseContext.extensionTurnedOn(E_GL_EXT_demote_to_helper_invocation))
1747 return keyword;
1748 else
1749 return identifierOrType();
1750 #endif
1751
1752 default:
1753 parseContext.infoSink.info.message(EPrefixInternalError, "Unknown glslang keyword", loc);
1754 return 0;
1755 }
1756 }
1757
identifierOrType()1758 int TScanContext::identifierOrType()
1759 {
1760 parserToken->sType.lex.string = NewPoolTString(tokenText);
1761 if (field)
1762 return IDENTIFIER;
1763
1764 parserToken->sType.lex.symbol = parseContext.symbolTable.find(*parserToken->sType.lex.string);
1765 if ((afterType == false && afterStruct == false) && parserToken->sType.lex.symbol != nullptr) {
1766 if (const TVariable* variable = parserToken->sType.lex.symbol->getAsVariable()) {
1767 if (variable->isUserType() &&
1768 // treat redeclaration of forward-declared buffer/uniform reference as an identifier
1769 !(variable->getType().isReference() && afterBuffer)) {
1770 afterType = true;
1771
1772 return TYPE_NAME;
1773 }
1774 }
1775 }
1776
1777 return IDENTIFIER;
1778 }
1779
1780 // Give an error for use of a reserved symbol.
1781 // However, allow built-in declarations to use reserved words, to allow
1782 // extension support before the extension is enabled.
reservedWord()1783 int TScanContext::reservedWord()
1784 {
1785 if (! parseContext.symbolTable.atBuiltInLevel())
1786 parseContext.error(loc, "Reserved word.", tokenText, "", "");
1787
1788 return 0;
1789 }
1790
identifierOrReserved(bool reserved)1791 int TScanContext::identifierOrReserved(bool reserved)
1792 {
1793 if (reserved) {
1794 reservedWord();
1795
1796 return 0;
1797 }
1798
1799 if (parseContext.isForwardCompatible())
1800 parseContext.warn(loc, "using future reserved keyword", tokenText, "");
1801
1802 return identifierOrType();
1803 }
1804
1805 // For keywords that suddenly showed up on non-ES (not previously reserved)
1806 // but then got reserved by ES 3.0.
es30ReservedFromGLSL(int version)1807 int TScanContext::es30ReservedFromGLSL(int version)
1808 {
1809 if (parseContext.symbolTable.atBuiltInLevel())
1810 return keyword;
1811
1812 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1813 (!parseContext.isEsProfile() && parseContext.version < version)) {
1814 if (parseContext.isForwardCompatible())
1815 parseContext.warn(loc, "future reserved word in ES 300 and keyword in GLSL", tokenText, "");
1816
1817 return identifierOrType();
1818 } else if (parseContext.isEsProfile() && parseContext.version >= 300)
1819 reservedWord();
1820
1821 return keyword;
1822 }
1823
1824 // For a keyword that was never reserved, until it suddenly
1825 // showed up, both in an es version and a non-ES version.
nonreservedKeyword(int esVersion,int nonEsVersion)1826 int TScanContext::nonreservedKeyword(int esVersion, int nonEsVersion)
1827 {
1828 if ((parseContext.isEsProfile() && parseContext.version < esVersion) ||
1829 (!parseContext.isEsProfile() && parseContext.version < nonEsVersion)) {
1830 if (parseContext.isForwardCompatible())
1831 parseContext.warn(loc, "using future keyword", tokenText, "");
1832
1833 return identifierOrType();
1834 }
1835
1836 return keyword;
1837 }
1838
precisionKeyword()1839 int TScanContext::precisionKeyword()
1840 {
1841 if (parseContext.isEsProfile() || parseContext.version >= 130)
1842 return keyword;
1843
1844 if (parseContext.isForwardCompatible())
1845 parseContext.warn(loc, "using ES precision qualifier keyword", tokenText, "");
1846
1847 return identifierOrType();
1848 }
1849
matNxM()1850 int TScanContext::matNxM()
1851 {
1852 afterType = true;
1853
1854 if (parseContext.version > 110)
1855 return keyword;
1856
1857 if (parseContext.isForwardCompatible())
1858 parseContext.warn(loc, "using future non-square matrix type keyword", tokenText, "");
1859
1860 return identifierOrType();
1861 }
1862
dMat()1863 int TScanContext::dMat()
1864 {
1865 afterType = true;
1866
1867 if (parseContext.isEsProfile() && parseContext.version >= 300) {
1868 reservedWord();
1869
1870 return keyword;
1871 }
1872
1873 if (!parseContext.isEsProfile() && (parseContext.version >= 400 ||
1874 parseContext.symbolTable.atBuiltInLevel() ||
1875 (parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64)) ||
1876 (parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit)
1877 && parseContext.language == EShLangVertex)))
1878 return keyword;
1879
1880 if (parseContext.isForwardCompatible())
1881 parseContext.warn(loc, "using future type keyword", tokenText, "");
1882
1883 return identifierOrType();
1884 }
1885
firstGenerationImage(bool inEs310)1886 int TScanContext::firstGenerationImage(bool inEs310)
1887 {
1888 if (parseContext.symbolTable.atBuiltInLevel() ||
1889 (!parseContext.isEsProfile() && (parseContext.version >= 420 ||
1890 parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))) ||
1891 (inEs310 && parseContext.isEsProfile() && parseContext.version >= 310))
1892 return keyword;
1893
1894 if ((parseContext.isEsProfile() && parseContext.version >= 300) ||
1895 (!parseContext.isEsProfile() && parseContext.version >= 130)) {
1896 reservedWord();
1897
1898 return keyword;
1899 }
1900
1901 if (parseContext.isForwardCompatible())
1902 parseContext.warn(loc, "using future type keyword", tokenText, "");
1903
1904 return identifierOrType();
1905 }
1906
secondGenerationImage()1907 int TScanContext::secondGenerationImage()
1908 {
1909 if (parseContext.isEsProfile() && parseContext.version >= 310) {
1910 reservedWord();
1911 return keyword;
1912 }
1913
1914 if (parseContext.symbolTable.atBuiltInLevel() ||
1915 (!parseContext.isEsProfile() &&
1916 (parseContext.version >= 420 || parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))))
1917 return keyword;
1918
1919 if (parseContext.isForwardCompatible())
1920 parseContext.warn(loc, "using future type keyword", tokenText, "");
1921
1922 return identifierOrType();
1923 }
1924
1925 } // end namespace glslang
1926