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 ()__anon4f77b3570111::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 ()__anon4f77b3570111::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
590 // GL_EXT_spirv_intrinsics
591 (*KeywordMap)["spirv_instruction"] = SPIRV_INSTRUCTION;
592 (*KeywordMap)["spirv_execution_mode"] = SPIRV_EXECUTION_MODE;
593 (*KeywordMap)["spirv_execution_mode_id"] = SPIRV_EXECUTION_MODE_ID;
594 (*KeywordMap)["spirv_decorate"] = SPIRV_DECORATE;
595 (*KeywordMap)["spirv_decorate_id"] = SPIRV_DECORATE_ID;
596 (*KeywordMap)["spirv_decorate_string"] = SPIRV_DECORATE_STRING;
597 (*KeywordMap)["spirv_type"] = SPIRV_TYPE;
598 (*KeywordMap)["spirv_storage_class"] = SPIRV_STORAGE_CLASS;
599 (*KeywordMap)["spirv_by_reference"] = SPIRV_BY_REFERENCE;
600 (*KeywordMap)["spirv_literal"] = SPIRV_LITERAL;
601 #endif
602
603 (*KeywordMap)["sampler2D"] = SAMPLER2D;
604 (*KeywordMap)["samplerCube"] = SAMPLERCUBE;
605 (*KeywordMap)["samplerCubeShadow"] = SAMPLERCUBESHADOW;
606 (*KeywordMap)["sampler2DArray"] = SAMPLER2DARRAY;
607 (*KeywordMap)["sampler2DArrayShadow"] = SAMPLER2DARRAYSHADOW;
608 (*KeywordMap)["isampler2D"] = ISAMPLER2D;
609 (*KeywordMap)["isampler3D"] = ISAMPLER3D;
610 (*KeywordMap)["isamplerCube"] = ISAMPLERCUBE;
611 (*KeywordMap)["isampler2DArray"] = ISAMPLER2DARRAY;
612 (*KeywordMap)["usampler2D"] = USAMPLER2D;
613 (*KeywordMap)["usampler3D"] = USAMPLER3D;
614 (*KeywordMap)["usamplerCube"] = USAMPLERCUBE;
615 (*KeywordMap)["usampler2DArray"] = USAMPLER2DARRAY;
616 (*KeywordMap)["sampler3D"] = SAMPLER3D;
617 (*KeywordMap)["sampler2DShadow"] = SAMPLER2DSHADOW;
618
619 (*KeywordMap)["texture2D"] = TEXTURE2D;
620 (*KeywordMap)["textureCube"] = TEXTURECUBE;
621 (*KeywordMap)["texture2DArray"] = TEXTURE2DARRAY;
622 (*KeywordMap)["itexture2D"] = ITEXTURE2D;
623 (*KeywordMap)["itexture3D"] = ITEXTURE3D;
624 (*KeywordMap)["itextureCube"] = ITEXTURECUBE;
625 (*KeywordMap)["itexture2DArray"] = ITEXTURE2DARRAY;
626 (*KeywordMap)["utexture2D"] = UTEXTURE2D;
627 (*KeywordMap)["utexture3D"] = UTEXTURE3D;
628 (*KeywordMap)["utextureCube"] = UTEXTURECUBE;
629 (*KeywordMap)["utexture2DArray"] = UTEXTURE2DARRAY;
630 (*KeywordMap)["texture3D"] = TEXTURE3D;
631
632 (*KeywordMap)["sampler"] = SAMPLER;
633 (*KeywordMap)["samplerShadow"] = SAMPLERSHADOW;
634
635 #ifndef GLSLANG_WEB
636 (*KeywordMap)["textureCubeArray"] = TEXTURECUBEARRAY;
637 (*KeywordMap)["itextureCubeArray"] = ITEXTURECUBEARRAY;
638 (*KeywordMap)["utextureCubeArray"] = UTEXTURECUBEARRAY;
639 (*KeywordMap)["samplerCubeArray"] = SAMPLERCUBEARRAY;
640 (*KeywordMap)["samplerCubeArrayShadow"] = SAMPLERCUBEARRAYSHADOW;
641 (*KeywordMap)["isamplerCubeArray"] = ISAMPLERCUBEARRAY;
642 (*KeywordMap)["usamplerCubeArray"] = USAMPLERCUBEARRAY;
643 (*KeywordMap)["sampler1DArrayShadow"] = SAMPLER1DARRAYSHADOW;
644 (*KeywordMap)["isampler1DArray"] = ISAMPLER1DARRAY;
645 (*KeywordMap)["usampler1D"] = USAMPLER1D;
646 (*KeywordMap)["isampler1D"] = ISAMPLER1D;
647 (*KeywordMap)["usampler1DArray"] = USAMPLER1DARRAY;
648 (*KeywordMap)["samplerBuffer"] = SAMPLERBUFFER;
649 (*KeywordMap)["isampler2DRect"] = ISAMPLER2DRECT;
650 (*KeywordMap)["usampler2DRect"] = USAMPLER2DRECT;
651 (*KeywordMap)["isamplerBuffer"] = ISAMPLERBUFFER;
652 (*KeywordMap)["usamplerBuffer"] = USAMPLERBUFFER;
653 (*KeywordMap)["sampler2DMS"] = SAMPLER2DMS;
654 (*KeywordMap)["isampler2DMS"] = ISAMPLER2DMS;
655 (*KeywordMap)["usampler2DMS"] = USAMPLER2DMS;
656 (*KeywordMap)["sampler2DMSArray"] = SAMPLER2DMSARRAY;
657 (*KeywordMap)["isampler2DMSArray"] = ISAMPLER2DMSARRAY;
658 (*KeywordMap)["usampler2DMSArray"] = USAMPLER2DMSARRAY;
659 (*KeywordMap)["sampler1D"] = SAMPLER1D;
660 (*KeywordMap)["sampler1DShadow"] = SAMPLER1DSHADOW;
661 (*KeywordMap)["sampler2DRect"] = SAMPLER2DRECT;
662 (*KeywordMap)["sampler2DRectShadow"] = SAMPLER2DRECTSHADOW;
663 (*KeywordMap)["sampler1DArray"] = SAMPLER1DARRAY;
664
665 (*KeywordMap)["samplerExternalOES"] = SAMPLEREXTERNALOES; // GL_OES_EGL_image_external
666
667 (*KeywordMap)["__samplerExternal2DY2YEXT"] = SAMPLEREXTERNAL2DY2YEXT; // GL_EXT_YUV_target
668
669 (*KeywordMap)["itexture1DArray"] = ITEXTURE1DARRAY;
670 (*KeywordMap)["utexture1D"] = UTEXTURE1D;
671 (*KeywordMap)["itexture1D"] = ITEXTURE1D;
672 (*KeywordMap)["utexture1DArray"] = UTEXTURE1DARRAY;
673 (*KeywordMap)["textureBuffer"] = TEXTUREBUFFER;
674 (*KeywordMap)["itexture2DRect"] = ITEXTURE2DRECT;
675 (*KeywordMap)["utexture2DRect"] = UTEXTURE2DRECT;
676 (*KeywordMap)["itextureBuffer"] = ITEXTUREBUFFER;
677 (*KeywordMap)["utextureBuffer"] = UTEXTUREBUFFER;
678 (*KeywordMap)["texture2DMS"] = TEXTURE2DMS;
679 (*KeywordMap)["itexture2DMS"] = ITEXTURE2DMS;
680 (*KeywordMap)["utexture2DMS"] = UTEXTURE2DMS;
681 (*KeywordMap)["texture2DMSArray"] = TEXTURE2DMSARRAY;
682 (*KeywordMap)["itexture2DMSArray"] = ITEXTURE2DMSARRAY;
683 (*KeywordMap)["utexture2DMSArray"] = UTEXTURE2DMSARRAY;
684 (*KeywordMap)["texture1D"] = TEXTURE1D;
685 (*KeywordMap)["texture2DRect"] = TEXTURE2DRECT;
686 (*KeywordMap)["texture1DArray"] = TEXTURE1DARRAY;
687
688 (*KeywordMap)["subpassInput"] = SUBPASSINPUT;
689 (*KeywordMap)["subpassInputMS"] = SUBPASSINPUTMS;
690 (*KeywordMap)["isubpassInput"] = ISUBPASSINPUT;
691 (*KeywordMap)["isubpassInputMS"] = ISUBPASSINPUTMS;
692 (*KeywordMap)["usubpassInput"] = USUBPASSINPUT;
693 (*KeywordMap)["usubpassInputMS"] = USUBPASSINPUTMS;
694
695 (*KeywordMap)["f16sampler1D"] = F16SAMPLER1D;
696 (*KeywordMap)["f16sampler2D"] = F16SAMPLER2D;
697 (*KeywordMap)["f16sampler3D"] = F16SAMPLER3D;
698 (*KeywordMap)["f16sampler2DRect"] = F16SAMPLER2DRECT;
699 (*KeywordMap)["f16samplerCube"] = F16SAMPLERCUBE;
700 (*KeywordMap)["f16sampler1DArray"] = F16SAMPLER1DARRAY;
701 (*KeywordMap)["f16sampler2DArray"] = F16SAMPLER2DARRAY;
702 (*KeywordMap)["f16samplerCubeArray"] = F16SAMPLERCUBEARRAY;
703 (*KeywordMap)["f16samplerBuffer"] = F16SAMPLERBUFFER;
704 (*KeywordMap)["f16sampler2DMS"] = F16SAMPLER2DMS;
705 (*KeywordMap)["f16sampler2DMSArray"] = F16SAMPLER2DMSARRAY;
706 (*KeywordMap)["f16sampler1DShadow"] = F16SAMPLER1DSHADOW;
707 (*KeywordMap)["f16sampler2DShadow"] = F16SAMPLER2DSHADOW;
708 (*KeywordMap)["f16sampler2DRectShadow"] = F16SAMPLER2DRECTSHADOW;
709 (*KeywordMap)["f16samplerCubeShadow"] = F16SAMPLERCUBESHADOW;
710 (*KeywordMap)["f16sampler1DArrayShadow"] = F16SAMPLER1DARRAYSHADOW;
711 (*KeywordMap)["f16sampler2DArrayShadow"] = F16SAMPLER2DARRAYSHADOW;
712 (*KeywordMap)["f16samplerCubeArrayShadow"] = F16SAMPLERCUBEARRAYSHADOW;
713
714 (*KeywordMap)["f16image1D"] = F16IMAGE1D;
715 (*KeywordMap)["f16image2D"] = F16IMAGE2D;
716 (*KeywordMap)["f16image3D"] = F16IMAGE3D;
717 (*KeywordMap)["f16image2DRect"] = F16IMAGE2DRECT;
718 (*KeywordMap)["f16imageCube"] = F16IMAGECUBE;
719 (*KeywordMap)["f16image1DArray"] = F16IMAGE1DARRAY;
720 (*KeywordMap)["f16image2DArray"] = F16IMAGE2DARRAY;
721 (*KeywordMap)["f16imageCubeArray"] = F16IMAGECUBEARRAY;
722 (*KeywordMap)["f16imageBuffer"] = F16IMAGEBUFFER;
723 (*KeywordMap)["f16image2DMS"] = F16IMAGE2DMS;
724 (*KeywordMap)["f16image2DMSArray"] = F16IMAGE2DMSARRAY;
725
726 (*KeywordMap)["f16texture1D"] = F16TEXTURE1D;
727 (*KeywordMap)["f16texture2D"] = F16TEXTURE2D;
728 (*KeywordMap)["f16texture3D"] = F16TEXTURE3D;
729 (*KeywordMap)["f16texture2DRect"] = F16TEXTURE2DRECT;
730 (*KeywordMap)["f16textureCube"] = F16TEXTURECUBE;
731 (*KeywordMap)["f16texture1DArray"] = F16TEXTURE1DARRAY;
732 (*KeywordMap)["f16texture2DArray"] = F16TEXTURE2DARRAY;
733 (*KeywordMap)["f16textureCubeArray"] = F16TEXTURECUBEARRAY;
734 (*KeywordMap)["f16textureBuffer"] = F16TEXTUREBUFFER;
735 (*KeywordMap)["f16texture2DMS"] = F16TEXTURE2DMS;
736 (*KeywordMap)["f16texture2DMSArray"] = F16TEXTURE2DMSARRAY;
737
738 (*KeywordMap)["f16subpassInput"] = F16SUBPASSINPUT;
739 (*KeywordMap)["f16subpassInputMS"] = F16SUBPASSINPUTMS;
740 (*KeywordMap)["__explicitInterpAMD"] = EXPLICITINTERPAMD;
741 (*KeywordMap)["pervertexNV"] = PERVERTEXNV;
742 (*KeywordMap)["pervertexEXT"] = PERVERTEXEXT;
743 (*KeywordMap)["precise"] = PRECISE;
744
745 (*KeywordMap)["rayPayloadNV"] = PAYLOADNV;
746 (*KeywordMap)["rayPayloadEXT"] = PAYLOADEXT;
747 (*KeywordMap)["rayPayloadInNV"] = PAYLOADINNV;
748 (*KeywordMap)["rayPayloadInEXT"] = PAYLOADINEXT;
749 (*KeywordMap)["hitAttributeNV"] = HITATTRNV;
750 (*KeywordMap)["hitAttributeEXT"] = HITATTREXT;
751 (*KeywordMap)["callableDataNV"] = CALLDATANV;
752 (*KeywordMap)["callableDataEXT"] = CALLDATAEXT;
753 (*KeywordMap)["callableDataInNV"] = CALLDATAINNV;
754 (*KeywordMap)["callableDataInEXT"] = CALLDATAINEXT;
755 (*KeywordMap)["accelerationStructureNV"] = ACCSTRUCTNV;
756 (*KeywordMap)["accelerationStructureEXT"] = ACCSTRUCTEXT;
757 (*KeywordMap)["rayQueryEXT"] = RAYQUERYEXT;
758 (*KeywordMap)["perprimitiveNV"] = PERPRIMITIVENV;
759 (*KeywordMap)["perviewNV"] = PERVIEWNV;
760 (*KeywordMap)["taskNV"] = PERTASKNV;
761 (*KeywordMap)["perprimitiveEXT"] = PERPRIMITIVEEXT;
762 (*KeywordMap)["taskPayloadSharedEXT"] = TASKPAYLOADWORKGROUPEXT;
763
764 (*KeywordMap)["fcoopmatNV"] = FCOOPMATNV;
765 (*KeywordMap)["icoopmatNV"] = ICOOPMATNV;
766 (*KeywordMap)["ucoopmatNV"] = UCOOPMATNV;
767
768 ReservedSet = new std::unordered_set<const char*, str_hash, str_eq>;
769
770 ReservedSet->insert("common");
771 ReservedSet->insert("partition");
772 ReservedSet->insert("active");
773 ReservedSet->insert("asm");
774 ReservedSet->insert("class");
775 ReservedSet->insert("union");
776 ReservedSet->insert("enum");
777 ReservedSet->insert("typedef");
778 ReservedSet->insert("template");
779 ReservedSet->insert("this");
780 ReservedSet->insert("goto");
781 ReservedSet->insert("inline");
782 ReservedSet->insert("noinline");
783 ReservedSet->insert("public");
784 ReservedSet->insert("static");
785 ReservedSet->insert("extern");
786 ReservedSet->insert("external");
787 ReservedSet->insert("interface");
788 ReservedSet->insert("long");
789 ReservedSet->insert("short");
790 ReservedSet->insert("half");
791 ReservedSet->insert("fixed");
792 ReservedSet->insert("unsigned");
793 ReservedSet->insert("input");
794 ReservedSet->insert("output");
795 ReservedSet->insert("hvec2");
796 ReservedSet->insert("hvec3");
797 ReservedSet->insert("hvec4");
798 ReservedSet->insert("fvec2");
799 ReservedSet->insert("fvec3");
800 ReservedSet->insert("fvec4");
801 ReservedSet->insert("sampler3DRect");
802 ReservedSet->insert("filter");
803 ReservedSet->insert("sizeof");
804 ReservedSet->insert("cast");
805 ReservedSet->insert("namespace");
806 ReservedSet->insert("using");
807 #endif
808 }
809
deleteKeywordMap()810 void TScanContext::deleteKeywordMap()
811 {
812 delete KeywordMap;
813 KeywordMap = nullptr;
814 #ifndef GLSLANG_WEB
815 delete ReservedSet;
816 ReservedSet = nullptr;
817 #endif
818 }
819
820 // Called by yylex to get the next token.
821 // Returning 0 implies end of input.
tokenize(TPpContext * pp,TParserToken & token)822 int TScanContext::tokenize(TPpContext* pp, TParserToken& token)
823 {
824 do {
825 parserToken = &token;
826 TPpToken ppToken;
827 int token = pp->tokenize(ppToken);
828 if (token == EndOfInput)
829 return 0;
830
831 tokenText = ppToken.name;
832 loc = ppToken.loc;
833 parserToken->sType.lex.loc = loc;
834 switch (token) {
835 case ';': afterType = false; afterBuffer = false; return SEMICOLON;
836 case ',': afterType = false; return COMMA;
837 case ':': return COLON;
838 case '=': afterType = false; return EQUAL;
839 case '(': afterType = false; return LEFT_PAREN;
840 case ')': afterType = false; return RIGHT_PAREN;
841 case '.': field = true; return DOT;
842 case '!': return BANG;
843 case '-': return DASH;
844 case '~': return TILDE;
845 case '+': return PLUS;
846 case '*': return STAR;
847 case '/': return SLASH;
848 case '%': return PERCENT;
849 case '<': return LEFT_ANGLE;
850 case '>': return RIGHT_ANGLE;
851 case '|': return VERTICAL_BAR;
852 case '^': return CARET;
853 case '&': return AMPERSAND;
854 case '?': return QUESTION;
855 case '[': return LEFT_BRACKET;
856 case ']': return RIGHT_BRACKET;
857 case '{': afterStruct = false; afterBuffer = false; return LEFT_BRACE;
858 case '}': return RIGHT_BRACE;
859 case '\\':
860 parseContext.error(loc, "illegal use of escape character", "\\", "");
861 break;
862
863 case PPAtomAddAssign: return ADD_ASSIGN;
864 case PPAtomSubAssign: return SUB_ASSIGN;
865 case PPAtomMulAssign: return MUL_ASSIGN;
866 case PPAtomDivAssign: return DIV_ASSIGN;
867 case PPAtomModAssign: return MOD_ASSIGN;
868
869 case PpAtomRight: return RIGHT_OP;
870 case PpAtomLeft: return LEFT_OP;
871
872 case PpAtomRightAssign: return RIGHT_ASSIGN;
873 case PpAtomLeftAssign: return LEFT_ASSIGN;
874 case PpAtomAndAssign: return AND_ASSIGN;
875 case PpAtomOrAssign: return OR_ASSIGN;
876 case PpAtomXorAssign: return XOR_ASSIGN;
877
878 case PpAtomAnd: return AND_OP;
879 case PpAtomOr: return OR_OP;
880 case PpAtomXor: return XOR_OP;
881
882 case PpAtomEQ: return EQ_OP;
883 case PpAtomGE: return GE_OP;
884 case PpAtomNE: return NE_OP;
885 case PpAtomLE: return LE_OP;
886
887 case PpAtomDecrement: return DEC_OP;
888 case PpAtomIncrement: return INC_OP;
889
890 case PpAtomColonColon:
891 parseContext.error(loc, "not supported", "::", "");
892 break;
893
894 case PpAtomConstString: parserToken->sType.lex.string = NewPoolTString(tokenText); return STRING_LITERAL;
895 case PpAtomConstInt: parserToken->sType.lex.i = ppToken.ival; return INTCONSTANT;
896 case PpAtomConstUint: parserToken->sType.lex.i = ppToken.ival; return UINTCONSTANT;
897 case PpAtomConstFloat: parserToken->sType.lex.d = ppToken.dval; return FLOATCONSTANT;
898 #ifndef GLSLANG_WEB
899 case PpAtomConstInt16: parserToken->sType.lex.i = ppToken.ival; return INT16CONSTANT;
900 case PpAtomConstUint16: parserToken->sType.lex.i = ppToken.ival; return UINT16CONSTANT;
901 case PpAtomConstInt64: parserToken->sType.lex.i64 = ppToken.i64val; return INT64CONSTANT;
902 case PpAtomConstUint64: parserToken->sType.lex.i64 = ppToken.i64val; return UINT64CONSTANT;
903 case PpAtomConstDouble: parserToken->sType.lex.d = ppToken.dval; return DOUBLECONSTANT;
904 case PpAtomConstFloat16: parserToken->sType.lex.d = ppToken.dval; return FLOAT16CONSTANT;
905 #endif
906 case PpAtomIdentifier:
907 {
908 int token = tokenizeIdentifier();
909 field = false;
910 return token;
911 }
912
913 case EndOfInput: return 0;
914
915 default:
916 char buf[2];
917 buf[0] = (char)token;
918 buf[1] = 0;
919 parseContext.error(loc, "unexpected token", buf, "");
920 break;
921 }
922 } while (true);
923 }
924
tokenizeIdentifier()925 int TScanContext::tokenizeIdentifier()
926 {
927 #ifndef GLSLANG_WEB
928 if (ReservedSet->find(tokenText) != ReservedSet->end())
929 return reservedWord();
930 #endif
931
932 auto it = KeywordMap->find(tokenText);
933 if (it == KeywordMap->end()) {
934 // Should have an identifier of some sort
935 return identifierOrType();
936 }
937 keyword = it->second;
938
939 switch (keyword) {
940 case CONST:
941 case UNIFORM:
942 case IN:
943 case OUT:
944 case INOUT:
945 case BREAK:
946 case CONTINUE:
947 case DO:
948 case FOR:
949 case WHILE:
950 case IF:
951 case ELSE:
952 case DISCARD:
953 case RETURN:
954 case CASE:
955 return keyword;
956
957 case TERMINATE_INVOCATION:
958 if (!parseContext.extensionTurnedOn(E_GL_EXT_terminate_invocation))
959 return identifierOrType();
960 return keyword;
961
962 case TERMINATE_RAY:
963 case IGNORE_INTERSECTION:
964 if (!parseContext.extensionTurnedOn(E_GL_EXT_ray_tracing))
965 return identifierOrType();
966 return keyword;
967
968 case BUFFER:
969 afterBuffer = true;
970 if ((parseContext.isEsProfile() && parseContext.version < 310) ||
971 (!parseContext.isEsProfile() && (parseContext.version < 430 &&
972 !parseContext.extensionTurnedOn(E_GL_ARB_shader_storage_buffer_object))))
973 return identifierOrType();
974 return keyword;
975
976 case STRUCT:
977 afterStruct = true;
978 return keyword;
979
980 case SWITCH:
981 case DEFAULT:
982 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
983 (!parseContext.isEsProfile() && parseContext.version < 130))
984 reservedWord();
985 return keyword;
986
987 case VOID:
988 case BOOL:
989 case FLOAT:
990 case INT:
991 case BVEC2:
992 case BVEC3:
993 case BVEC4:
994 case VEC2:
995 case VEC3:
996 case VEC4:
997 case IVEC2:
998 case IVEC3:
999 case IVEC4:
1000 case MAT2:
1001 case MAT3:
1002 case MAT4:
1003 case SAMPLER2D:
1004 case SAMPLERCUBE:
1005 afterType = true;
1006 return keyword;
1007
1008 case BOOLCONSTANT:
1009 if (strcmp("true", tokenText) == 0)
1010 parserToken->sType.lex.b = true;
1011 else
1012 parserToken->sType.lex.b = false;
1013 return keyword;
1014
1015 case SMOOTH:
1016 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1017 (!parseContext.isEsProfile() && parseContext.version < 130))
1018 return identifierOrType();
1019 return keyword;
1020 case FLAT:
1021 if (parseContext.isEsProfile() && parseContext.version < 300)
1022 reservedWord();
1023 else if (!parseContext.isEsProfile() && parseContext.version < 130)
1024 return identifierOrType();
1025 return keyword;
1026 case CENTROID:
1027 if (parseContext.version < 120)
1028 return identifierOrType();
1029 return keyword;
1030 case INVARIANT:
1031 if (!parseContext.isEsProfile() && parseContext.version < 120)
1032 return identifierOrType();
1033 return keyword;
1034 case PACKED:
1035 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1036 (!parseContext.isEsProfile() && parseContext.version < 140))
1037 return reservedWord();
1038 return identifierOrType();
1039
1040 case RESOURCE:
1041 {
1042 bool reserved = (parseContext.isEsProfile() && parseContext.version >= 300) ||
1043 (!parseContext.isEsProfile() && parseContext.version >= 420);
1044 return identifierOrReserved(reserved);
1045 }
1046 case SUPERP:
1047 {
1048 bool reserved = parseContext.isEsProfile() || parseContext.version >= 130;
1049 return identifierOrReserved(reserved);
1050 }
1051
1052 #ifndef GLSLANG_WEB
1053 case NOPERSPECTIVE:
1054 if (parseContext.extensionTurnedOn(E_GL_NV_shader_noperspective_interpolation))
1055 return keyword;
1056 return es30ReservedFromGLSL(130);
1057
1058 case NONUNIFORM:
1059 if (parseContext.extensionTurnedOn(E_GL_EXT_nonuniform_qualifier))
1060 return keyword;
1061 else
1062 return identifierOrType();
1063 case ATTRIBUTE:
1064 case VARYING:
1065 if (parseContext.isEsProfile() && parseContext.version >= 300)
1066 reservedWord();
1067 return keyword;
1068 case PAYLOADNV:
1069 case PAYLOADINNV:
1070 case HITATTRNV:
1071 case CALLDATANV:
1072 case CALLDATAINNV:
1073 case ACCSTRUCTNV:
1074 if (parseContext.symbolTable.atBuiltInLevel() ||
1075 parseContext.extensionTurnedOn(E_GL_NV_ray_tracing))
1076 return keyword;
1077 return identifierOrType();
1078 case PAYLOADEXT:
1079 case PAYLOADINEXT:
1080 case HITATTREXT:
1081 case CALLDATAEXT:
1082 case CALLDATAINEXT:
1083 case ACCSTRUCTEXT:
1084 if (parseContext.symbolTable.atBuiltInLevel() ||
1085 parseContext.extensionTurnedOn(E_GL_EXT_ray_tracing) ||
1086 parseContext.extensionTurnedOn(E_GL_EXT_ray_query))
1087 return keyword;
1088 return identifierOrType();
1089 case RAYQUERYEXT:
1090 if (parseContext.symbolTable.atBuiltInLevel() ||
1091 (!parseContext.isEsProfile() && parseContext.version >= 460
1092 && parseContext.extensionTurnedOn(E_GL_EXT_ray_query)))
1093 return keyword;
1094 return identifierOrType();
1095 case ATOMIC_UINT:
1096 if ((parseContext.isEsProfile() && parseContext.version >= 310) ||
1097 parseContext.extensionTurnedOn(E_GL_ARB_shader_atomic_counters))
1098 return keyword;
1099 return es30ReservedFromGLSL(420);
1100
1101 case COHERENT:
1102 case DEVICECOHERENT:
1103 case QUEUEFAMILYCOHERENT:
1104 case WORKGROUPCOHERENT:
1105 case SUBGROUPCOHERENT:
1106 case SHADERCALLCOHERENT:
1107 case NONPRIVATE:
1108 case RESTRICT:
1109 case READONLY:
1110 case WRITEONLY:
1111 if (parseContext.isEsProfile() && parseContext.version >= 310)
1112 return keyword;
1113 return es30ReservedFromGLSL(parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store) ? 130 : 420);
1114 case VOLATILE:
1115 if (parseContext.isEsProfile() && parseContext.version >= 310)
1116 return keyword;
1117 if (! parseContext.symbolTable.atBuiltInLevel() && (parseContext.isEsProfile() ||
1118 (parseContext.version < 420 && ! parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))))
1119 reservedWord();
1120 return keyword;
1121 case PATCH:
1122 if (parseContext.symbolTable.atBuiltInLevel() ||
1123 (parseContext.isEsProfile() &&
1124 (parseContext.version >= 320 ||
1125 parseContext.extensionsTurnedOn(Num_AEP_tessellation_shader, AEP_tessellation_shader))) ||
1126 (!parseContext.isEsProfile() && parseContext.extensionTurnedOn(E_GL_ARB_tessellation_shader)))
1127 return keyword;
1128
1129 return es30ReservedFromGLSL(400);
1130
1131 case SAMPLE:
1132 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1133 parseContext.extensionsTurnedOn(1, &E_GL_OES_shader_multisample_interpolation))
1134 return keyword;
1135 return es30ReservedFromGLSL(400);
1136
1137 case SUBROUTINE:
1138 return es30ReservedFromGLSL(400);
1139 #endif
1140 case SHARED:
1141 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1142 (!parseContext.isEsProfile() && parseContext.version < 140))
1143 return identifierOrType();
1144 return keyword;
1145 case LAYOUT:
1146 {
1147 const int numLayoutExts = 2;
1148 const char* layoutExts[numLayoutExts] = { E_GL_ARB_shading_language_420pack,
1149 E_GL_ARB_explicit_attrib_location };
1150 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1151 (!parseContext.isEsProfile() && parseContext.version < 140 &&
1152 ! parseContext.extensionsTurnedOn(numLayoutExts, layoutExts)))
1153 return identifierOrType();
1154 return keyword;
1155 }
1156
1157 case HIGH_PRECISION:
1158 case MEDIUM_PRECISION:
1159 case LOW_PRECISION:
1160 case PRECISION:
1161 return precisionKeyword();
1162
1163 case MAT2X2:
1164 case MAT2X3:
1165 case MAT2X4:
1166 case MAT3X2:
1167 case MAT3X3:
1168 case MAT3X4:
1169 case MAT4X2:
1170 case MAT4X3:
1171 case MAT4X4:
1172 return matNxM();
1173
1174 #ifndef GLSLANG_WEB
1175 case DMAT2:
1176 case DMAT3:
1177 case DMAT4:
1178 case DMAT2X2:
1179 case DMAT2X3:
1180 case DMAT2X4:
1181 case DMAT3X2:
1182 case DMAT3X3:
1183 case DMAT3X4:
1184 case DMAT4X2:
1185 case DMAT4X3:
1186 case DMAT4X4:
1187 return dMat();
1188
1189 case IMAGE1D:
1190 case IIMAGE1D:
1191 case UIMAGE1D:
1192 case IMAGE1DARRAY:
1193 case IIMAGE1DARRAY:
1194 case UIMAGE1DARRAY:
1195 case IMAGE2DRECT:
1196 case IIMAGE2DRECT:
1197 case UIMAGE2DRECT:
1198 afterType = true;
1199 return firstGenerationImage(false);
1200
1201 case I64IMAGE1D:
1202 case U64IMAGE1D:
1203 case I64IMAGE1DARRAY:
1204 case U64IMAGE1DARRAY:
1205 case I64IMAGE2DRECT:
1206 case U64IMAGE2DRECT:
1207 afterType = true;
1208 if (parseContext.symbolTable.atBuiltInLevel() ||
1209 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
1210 return firstGenerationImage(false);
1211 }
1212 return identifierOrType();
1213
1214 case IMAGEBUFFER:
1215 case IIMAGEBUFFER:
1216 case UIMAGEBUFFER:
1217 afterType = true;
1218 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1219 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1220 return keyword;
1221 return firstGenerationImage(false);
1222
1223 case I64IMAGEBUFFER:
1224 case U64IMAGEBUFFER:
1225 afterType = true;
1226 if (parseContext.symbolTable.atBuiltInLevel() ||
1227 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
1228 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1229 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1230 return keyword;
1231 return firstGenerationImage(false);
1232 }
1233 return identifierOrType();
1234
1235 case IMAGE2D:
1236 case IIMAGE2D:
1237 case UIMAGE2D:
1238 case IMAGE3D:
1239 case IIMAGE3D:
1240 case UIMAGE3D:
1241 case IMAGECUBE:
1242 case IIMAGECUBE:
1243 case UIMAGECUBE:
1244 case IMAGE2DARRAY:
1245 case IIMAGE2DARRAY:
1246 case UIMAGE2DARRAY:
1247 afterType = true;
1248 return firstGenerationImage(true);
1249
1250 case I64IMAGE2D:
1251 case U64IMAGE2D:
1252 case I64IMAGE3D:
1253 case U64IMAGE3D:
1254 case I64IMAGECUBE:
1255 case U64IMAGECUBE:
1256 case I64IMAGE2DARRAY:
1257 case U64IMAGE2DARRAY:
1258 afterType = true;
1259 if (parseContext.symbolTable.atBuiltInLevel() ||
1260 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64))
1261 return firstGenerationImage(true);
1262 return identifierOrType();
1263
1264 case IMAGECUBEARRAY:
1265 case IIMAGECUBEARRAY:
1266 case UIMAGECUBEARRAY:
1267 afterType = true;
1268 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1269 parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
1270 return keyword;
1271 return secondGenerationImage();
1272
1273 case I64IMAGECUBEARRAY:
1274 case U64IMAGECUBEARRAY:
1275 afterType = true;
1276 if (parseContext.symbolTable.atBuiltInLevel() ||
1277 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
1278 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1279 parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
1280 return keyword;
1281 return secondGenerationImage();
1282 }
1283 return identifierOrType();
1284
1285 case IMAGE2DMS:
1286 case IIMAGE2DMS:
1287 case UIMAGE2DMS:
1288 case IMAGE2DMSARRAY:
1289 case IIMAGE2DMSARRAY:
1290 case UIMAGE2DMSARRAY:
1291 afterType = true;
1292 return secondGenerationImage();
1293
1294 case I64IMAGE2DMS:
1295 case U64IMAGE2DMS:
1296 case I64IMAGE2DMSARRAY:
1297 case U64IMAGE2DMSARRAY:
1298 afterType = true;
1299 if (parseContext.symbolTable.atBuiltInLevel() ||
1300 parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
1301 return secondGenerationImage();
1302 }
1303 return identifierOrType();
1304
1305 case DOUBLE:
1306 case DVEC2:
1307 case DVEC3:
1308 case DVEC4:
1309 afterType = true;
1310 if (parseContext.isEsProfile() || parseContext.version < 150 ||
1311 (!parseContext.symbolTable.atBuiltInLevel() &&
1312 (parseContext.version < 400 && !parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64) &&
1313 (parseContext.version < 410 && !parseContext.extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit)))))
1314 reservedWord();
1315 return keyword;
1316
1317 case INT64_T:
1318 case UINT64_T:
1319 case I64VEC2:
1320 case I64VEC3:
1321 case I64VEC4:
1322 case U64VEC2:
1323 case U64VEC3:
1324 case U64VEC4:
1325 afterType = true;
1326 if (parseContext.symbolTable.atBuiltInLevel() ||
1327 parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_int64) ||
1328 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1329 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int64))
1330 return keyword;
1331 return identifierOrType();
1332
1333 case INT8_T:
1334 case UINT8_T:
1335 case I8VEC2:
1336 case I8VEC3:
1337 case I8VEC4:
1338 case U8VEC2:
1339 case U8VEC3:
1340 case U8VEC4:
1341 afterType = true;
1342 if (parseContext.symbolTable.atBuiltInLevel() ||
1343 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1344 parseContext.extensionTurnedOn(E_GL_EXT_shader_8bit_storage) ||
1345 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int8))
1346 return keyword;
1347 return identifierOrType();
1348
1349 case INT16_T:
1350 case UINT16_T:
1351 case I16VEC2:
1352 case I16VEC3:
1353 case I16VEC4:
1354 case U16VEC2:
1355 case U16VEC3:
1356 case U16VEC4:
1357 afterType = true;
1358 if (parseContext.symbolTable.atBuiltInLevel() ||
1359 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_int16) ||
1360 parseContext.extensionTurnedOn(E_GL_EXT_shader_16bit_storage) ||
1361 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1362 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int16))
1363 return keyword;
1364 return identifierOrType();
1365 case INT32_T:
1366 case UINT32_T:
1367 case I32VEC2:
1368 case I32VEC3:
1369 case I32VEC4:
1370 case U32VEC2:
1371 case U32VEC3:
1372 case U32VEC4:
1373 afterType = true;
1374 if (parseContext.symbolTable.atBuiltInLevel() ||
1375 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1376 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int32))
1377 return keyword;
1378 return identifierOrType();
1379 case FLOAT32_T:
1380 case F32VEC2:
1381 case F32VEC3:
1382 case F32VEC4:
1383 case F32MAT2:
1384 case F32MAT3:
1385 case F32MAT4:
1386 case F32MAT2X2:
1387 case F32MAT2X3:
1388 case F32MAT2X4:
1389 case F32MAT3X2:
1390 case F32MAT3X3:
1391 case F32MAT3X4:
1392 case F32MAT4X2:
1393 case F32MAT4X3:
1394 case F32MAT4X4:
1395 afterType = true;
1396 if (parseContext.symbolTable.atBuiltInLevel() ||
1397 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1398 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float32))
1399 return keyword;
1400 return identifierOrType();
1401
1402 case FLOAT64_T:
1403 case F64VEC2:
1404 case F64VEC3:
1405 case F64VEC4:
1406 case F64MAT2:
1407 case F64MAT3:
1408 case F64MAT4:
1409 case F64MAT2X2:
1410 case F64MAT2X3:
1411 case F64MAT2X4:
1412 case F64MAT3X2:
1413 case F64MAT3X3:
1414 case F64MAT3X4:
1415 case F64MAT4X2:
1416 case F64MAT4X3:
1417 case F64MAT4X4:
1418 afterType = true;
1419 if (parseContext.symbolTable.atBuiltInLevel() ||
1420 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1421 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float64))
1422 return keyword;
1423 return identifierOrType();
1424
1425 case FLOAT16_T:
1426 case F16VEC2:
1427 case F16VEC3:
1428 case F16VEC4:
1429 afterType = true;
1430 if (parseContext.symbolTable.atBuiltInLevel() ||
1431 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) ||
1432 parseContext.extensionTurnedOn(E_GL_EXT_shader_16bit_storage) ||
1433 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1434 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float16))
1435 return keyword;
1436
1437 return identifierOrType();
1438
1439 case F16MAT2:
1440 case F16MAT3:
1441 case F16MAT4:
1442 case F16MAT2X2:
1443 case F16MAT2X3:
1444 case F16MAT2X4:
1445 case F16MAT3X2:
1446 case F16MAT3X3:
1447 case F16MAT3X4:
1448 case F16MAT4X2:
1449 case F16MAT4X3:
1450 case F16MAT4X4:
1451 afterType = true;
1452 if (parseContext.symbolTable.atBuiltInLevel() ||
1453 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) ||
1454 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1455 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float16))
1456 return keyword;
1457
1458 return identifierOrType();
1459
1460 case SAMPLERCUBEARRAY:
1461 case SAMPLERCUBEARRAYSHADOW:
1462 case ISAMPLERCUBEARRAY:
1463 case USAMPLERCUBEARRAY:
1464 afterType = true;
1465 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1466 parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
1467 return keyword;
1468 if (parseContext.isEsProfile() || (parseContext.version < 400 && ! parseContext.extensionTurnedOn(E_GL_ARB_texture_cube_map_array)))
1469 reservedWord();
1470 return keyword;
1471
1472 case TEXTURECUBEARRAY:
1473 case ITEXTURECUBEARRAY:
1474 case UTEXTURECUBEARRAY:
1475 if (parseContext.spvVersion.vulkan > 0)
1476 return keyword;
1477 else
1478 return identifierOrType();
1479 #endif
1480
1481 case UINT:
1482 case UVEC2:
1483 case UVEC3:
1484 case UVEC4:
1485 case SAMPLERCUBESHADOW:
1486 case SAMPLER2DARRAY:
1487 case SAMPLER2DARRAYSHADOW:
1488 case ISAMPLER2D:
1489 case ISAMPLER3D:
1490 case ISAMPLERCUBE:
1491 case ISAMPLER2DARRAY:
1492 case USAMPLER2D:
1493 case USAMPLER3D:
1494 case USAMPLERCUBE:
1495 case USAMPLER2DARRAY:
1496 afterType = true;
1497 return nonreservedKeyword(300, 130);
1498
1499 case SAMPLER3D:
1500 afterType = true;
1501 if (parseContext.isEsProfile() && parseContext.version < 300) {
1502 if (!parseContext.extensionTurnedOn(E_GL_OES_texture_3D))
1503 reservedWord();
1504 }
1505 return keyword;
1506
1507 case SAMPLER2DSHADOW:
1508 afterType = true;
1509 if (parseContext.isEsProfile() && parseContext.version < 300) {
1510 if (!parseContext.extensionTurnedOn(E_GL_EXT_shadow_samplers))
1511 reservedWord();
1512 }
1513 return keyword;
1514
1515 case TEXTURE2D:
1516 case TEXTURECUBE:
1517 case TEXTURE2DARRAY:
1518 case ITEXTURE2D:
1519 case ITEXTURE3D:
1520 case ITEXTURECUBE:
1521 case ITEXTURE2DARRAY:
1522 case UTEXTURE2D:
1523 case UTEXTURE3D:
1524 case UTEXTURECUBE:
1525 case UTEXTURE2DARRAY:
1526 case TEXTURE3D:
1527 case SAMPLER:
1528 case SAMPLERSHADOW:
1529 if (parseContext.spvVersion.vulkan > 0)
1530 return keyword;
1531 else
1532 return identifierOrType();
1533
1534 #ifndef GLSLANG_WEB
1535 case ISAMPLER1D:
1536 case ISAMPLER1DARRAY:
1537 case SAMPLER1DARRAYSHADOW:
1538 case USAMPLER1D:
1539 case USAMPLER1DARRAY:
1540 afterType = true;
1541 return es30ReservedFromGLSL(130);
1542 case ISAMPLER2DRECT:
1543 case USAMPLER2DRECT:
1544 afterType = true;
1545 return es30ReservedFromGLSL(140);
1546
1547 case SAMPLERBUFFER:
1548 afterType = true;
1549 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1550 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1551 return keyword;
1552 return es30ReservedFromGLSL(130);
1553
1554 case ISAMPLERBUFFER:
1555 case USAMPLERBUFFER:
1556 afterType = true;
1557 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1558 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1559 return keyword;
1560 return es30ReservedFromGLSL(140);
1561
1562 case SAMPLER2DMS:
1563 case ISAMPLER2DMS:
1564 case USAMPLER2DMS:
1565 afterType = true;
1566 if (parseContext.isEsProfile() && parseContext.version >= 310)
1567 return keyword;
1568 if (!parseContext.isEsProfile() && (parseContext.version > 140 ||
1569 (parseContext.version == 140 && parseContext.extensionsTurnedOn(1, &E_GL_ARB_texture_multisample))))
1570 return keyword;
1571 return es30ReservedFromGLSL(150);
1572
1573 case SAMPLER2DMSARRAY:
1574 case ISAMPLER2DMSARRAY:
1575 case USAMPLER2DMSARRAY:
1576 afterType = true;
1577 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1578 parseContext.extensionsTurnedOn(1, &E_GL_OES_texture_storage_multisample_2d_array))
1579 return keyword;
1580 if (!parseContext.isEsProfile() && (parseContext.version > 140 ||
1581 (parseContext.version == 140 && parseContext.extensionsTurnedOn(1, &E_GL_ARB_texture_multisample))))
1582 return keyword;
1583 return es30ReservedFromGLSL(150);
1584
1585 case SAMPLER1D:
1586 case SAMPLER1DSHADOW:
1587 afterType = true;
1588 if (parseContext.isEsProfile())
1589 reservedWord();
1590 return keyword;
1591
1592 case SAMPLER2DRECT:
1593 case SAMPLER2DRECTSHADOW:
1594 afterType = true;
1595 if (parseContext.isEsProfile())
1596 reservedWord();
1597 else if (parseContext.version < 140 && ! parseContext.symbolTable.atBuiltInLevel() && ! parseContext.extensionTurnedOn(E_GL_ARB_texture_rectangle)) {
1598 if (parseContext.relaxedErrors())
1599 parseContext.requireExtensions(loc, 1, &E_GL_ARB_texture_rectangle, "texture-rectangle sampler keyword");
1600 else
1601 reservedWord();
1602 }
1603 return keyword;
1604
1605 case SAMPLER1DARRAY:
1606 afterType = true;
1607 if (parseContext.isEsProfile() && parseContext.version == 300)
1608 reservedWord();
1609 else if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1610 (!parseContext.isEsProfile() && parseContext.version < 130))
1611 return identifierOrType();
1612 return keyword;
1613
1614 case SAMPLEREXTERNALOES:
1615 afterType = true;
1616 if (parseContext.symbolTable.atBuiltInLevel() ||
1617 parseContext.extensionTurnedOn(E_GL_OES_EGL_image_external) ||
1618 parseContext.extensionTurnedOn(E_GL_OES_EGL_image_external_essl3))
1619 return keyword;
1620 return identifierOrType();
1621
1622 case SAMPLEREXTERNAL2DY2YEXT:
1623 afterType = true;
1624 if (parseContext.symbolTable.atBuiltInLevel() ||
1625 parseContext.extensionTurnedOn(E_GL_EXT_YUV_target))
1626 return keyword;
1627 return identifierOrType();
1628
1629 case ITEXTURE1DARRAY:
1630 case UTEXTURE1D:
1631 case ITEXTURE1D:
1632 case UTEXTURE1DARRAY:
1633 case TEXTUREBUFFER:
1634 case ITEXTURE2DRECT:
1635 case UTEXTURE2DRECT:
1636 case ITEXTUREBUFFER:
1637 case UTEXTUREBUFFER:
1638 case TEXTURE2DMS:
1639 case ITEXTURE2DMS:
1640 case UTEXTURE2DMS:
1641 case TEXTURE2DMSARRAY:
1642 case ITEXTURE2DMSARRAY:
1643 case UTEXTURE2DMSARRAY:
1644 case TEXTURE1D:
1645 case TEXTURE2DRECT:
1646 case TEXTURE1DARRAY:
1647 if (parseContext.spvVersion.vulkan > 0)
1648 return keyword;
1649 else
1650 return identifierOrType();
1651
1652 case SUBPASSINPUT:
1653 case SUBPASSINPUTMS:
1654 case ISUBPASSINPUT:
1655 case ISUBPASSINPUTMS:
1656 case USUBPASSINPUT:
1657 case USUBPASSINPUTMS:
1658 if (parseContext.spvVersion.vulkan > 0)
1659 return keyword;
1660 else
1661 return identifierOrType();
1662
1663 case F16SAMPLER1D:
1664 case F16SAMPLER2D:
1665 case F16SAMPLER3D:
1666 case F16SAMPLER2DRECT:
1667 case F16SAMPLERCUBE:
1668 case F16SAMPLER1DARRAY:
1669 case F16SAMPLER2DARRAY:
1670 case F16SAMPLERCUBEARRAY:
1671 case F16SAMPLERBUFFER:
1672 case F16SAMPLER2DMS:
1673 case F16SAMPLER2DMSARRAY:
1674 case F16SAMPLER1DSHADOW:
1675 case F16SAMPLER2DSHADOW:
1676 case F16SAMPLER1DARRAYSHADOW:
1677 case F16SAMPLER2DARRAYSHADOW:
1678 case F16SAMPLER2DRECTSHADOW:
1679 case F16SAMPLERCUBESHADOW:
1680 case F16SAMPLERCUBEARRAYSHADOW:
1681
1682 case F16IMAGE1D:
1683 case F16IMAGE2D:
1684 case F16IMAGE3D:
1685 case F16IMAGE2DRECT:
1686 case F16IMAGECUBE:
1687 case F16IMAGE1DARRAY:
1688 case F16IMAGE2DARRAY:
1689 case F16IMAGECUBEARRAY:
1690 case F16IMAGEBUFFER:
1691 case F16IMAGE2DMS:
1692 case F16IMAGE2DMSARRAY:
1693
1694 case F16TEXTURE1D:
1695 case F16TEXTURE2D:
1696 case F16TEXTURE3D:
1697 case F16TEXTURE2DRECT:
1698 case F16TEXTURECUBE:
1699 case F16TEXTURE1DARRAY:
1700 case F16TEXTURE2DARRAY:
1701 case F16TEXTURECUBEARRAY:
1702 case F16TEXTUREBUFFER:
1703 case F16TEXTURE2DMS:
1704 case F16TEXTURE2DMSARRAY:
1705
1706 case F16SUBPASSINPUT:
1707 case F16SUBPASSINPUTMS:
1708 afterType = true;
1709 if (parseContext.symbolTable.atBuiltInLevel() ||
1710 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float_fetch))
1711 return keyword;
1712 return identifierOrType();
1713
1714 case EXPLICITINTERPAMD:
1715 if (parseContext.extensionTurnedOn(E_GL_AMD_shader_explicit_vertex_parameter))
1716 return keyword;
1717 return identifierOrType();
1718
1719 case PERVERTEXNV:
1720 if ((!parseContext.isEsProfile() && parseContext.version >= 450) ||
1721 parseContext.extensionTurnedOn(E_GL_NV_fragment_shader_barycentric))
1722 return keyword;
1723 return identifierOrType();
1724
1725 case PERVERTEXEXT:
1726 if ((!parseContext.isEsProfile() && parseContext.version >= 450) ||
1727 parseContext.extensionTurnedOn(E_GL_EXT_fragment_shader_barycentric))
1728 return keyword;
1729 return identifierOrType();
1730
1731 case PRECISE:
1732 if ((parseContext.isEsProfile() &&
1733 (parseContext.version >= 320 || parseContext.extensionsTurnedOn(Num_AEP_gpu_shader5, AEP_gpu_shader5))) ||
1734 (!parseContext.isEsProfile() && parseContext.version >= 400))
1735 return keyword;
1736 if (parseContext.isEsProfile() && parseContext.version == 310) {
1737 reservedWord();
1738 return keyword;
1739 }
1740 return identifierOrType();
1741
1742 case PERPRIMITIVENV:
1743 case PERVIEWNV:
1744 case PERTASKNV:
1745 if (parseContext.symbolTable.atBuiltInLevel() ||
1746 parseContext.extensionTurnedOn(E_GL_NV_mesh_shader))
1747 return keyword;
1748 return identifierOrType();
1749
1750 case PERPRIMITIVEEXT:
1751 case TASKPAYLOADWORKGROUPEXT:
1752 if (parseContext.symbolTable.atBuiltInLevel() ||
1753 parseContext.extensionTurnedOn(E_GL_EXT_mesh_shader))
1754 return keyword;
1755 return identifierOrType();
1756
1757 case FCOOPMATNV:
1758 afterType = true;
1759 if (parseContext.symbolTable.atBuiltInLevel() ||
1760 parseContext.extensionTurnedOn(E_GL_NV_cooperative_matrix))
1761 return keyword;
1762 return identifierOrType();
1763
1764 case UCOOPMATNV:
1765 case ICOOPMATNV:
1766 afterType = true;
1767 if (parseContext.symbolTable.atBuiltInLevel() ||
1768 parseContext.extensionTurnedOn(E_GL_NV_integer_cooperative_matrix))
1769 return keyword;
1770 return identifierOrType();
1771
1772 case DEMOTE:
1773 if (parseContext.extensionTurnedOn(E_GL_EXT_demote_to_helper_invocation))
1774 return keyword;
1775 else
1776 return identifierOrType();
1777
1778 case SPIRV_INSTRUCTION:
1779 case SPIRV_EXECUTION_MODE:
1780 case SPIRV_EXECUTION_MODE_ID:
1781 case SPIRV_DECORATE:
1782 case SPIRV_DECORATE_ID:
1783 case SPIRV_DECORATE_STRING:
1784 case SPIRV_TYPE:
1785 case SPIRV_STORAGE_CLASS:
1786 case SPIRV_BY_REFERENCE:
1787 case SPIRV_LITERAL:
1788 if (parseContext.symbolTable.atBuiltInLevel() ||
1789 parseContext.extensionTurnedOn(E_GL_EXT_spirv_intrinsics))
1790 return keyword;
1791 return identifierOrType();
1792 #endif
1793
1794 default:
1795 parseContext.infoSink.info.message(EPrefixInternalError, "Unknown glslang keyword", loc);
1796 return 0;
1797 }
1798 }
1799
identifierOrType()1800 int TScanContext::identifierOrType()
1801 {
1802 parserToken->sType.lex.string = NewPoolTString(tokenText);
1803 if (field)
1804 return IDENTIFIER;
1805
1806 parserToken->sType.lex.symbol = parseContext.symbolTable.find(*parserToken->sType.lex.string);
1807 if ((afterType == false && afterStruct == false) && parserToken->sType.lex.symbol != nullptr) {
1808 if (const TVariable* variable = parserToken->sType.lex.symbol->getAsVariable()) {
1809 if (variable->isUserType() &&
1810 // treat redeclaration of forward-declared buffer/uniform reference as an identifier
1811 !(variable->getType().isReference() && afterBuffer)) {
1812 afterType = true;
1813
1814 return TYPE_NAME;
1815 }
1816 }
1817 }
1818
1819 return IDENTIFIER;
1820 }
1821
1822 // Give an error for use of a reserved symbol.
1823 // However, allow built-in declarations to use reserved words, to allow
1824 // extension support before the extension is enabled.
reservedWord()1825 int TScanContext::reservedWord()
1826 {
1827 if (! parseContext.symbolTable.atBuiltInLevel())
1828 parseContext.error(loc, "Reserved word.", tokenText, "", "");
1829
1830 return 0;
1831 }
1832
identifierOrReserved(bool reserved)1833 int TScanContext::identifierOrReserved(bool reserved)
1834 {
1835 if (reserved) {
1836 reservedWord();
1837
1838 return 0;
1839 }
1840
1841 if (parseContext.isForwardCompatible())
1842 parseContext.warn(loc, "using future reserved keyword", tokenText, "");
1843
1844 return identifierOrType();
1845 }
1846
1847 // For keywords that suddenly showed up on non-ES (not previously reserved)
1848 // but then got reserved by ES 3.0.
es30ReservedFromGLSL(int version)1849 int TScanContext::es30ReservedFromGLSL(int version)
1850 {
1851 if (parseContext.symbolTable.atBuiltInLevel())
1852 return keyword;
1853
1854 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1855 (!parseContext.isEsProfile() && parseContext.version < version)) {
1856 if (parseContext.isForwardCompatible())
1857 parseContext.warn(loc, "future reserved word in ES 300 and keyword in GLSL", tokenText, "");
1858
1859 return identifierOrType();
1860 } else if (parseContext.isEsProfile() && parseContext.version >= 300)
1861 reservedWord();
1862
1863 return keyword;
1864 }
1865
1866 // For a keyword that was never reserved, until it suddenly
1867 // showed up, both in an es version and a non-ES version.
nonreservedKeyword(int esVersion,int nonEsVersion)1868 int TScanContext::nonreservedKeyword(int esVersion, int nonEsVersion)
1869 {
1870 if ((parseContext.isEsProfile() && parseContext.version < esVersion) ||
1871 (!parseContext.isEsProfile() && parseContext.version < nonEsVersion)) {
1872 if (parseContext.isForwardCompatible())
1873 parseContext.warn(loc, "using future keyword", tokenText, "");
1874
1875 return identifierOrType();
1876 }
1877
1878 return keyword;
1879 }
1880
precisionKeyword()1881 int TScanContext::precisionKeyword()
1882 {
1883 if (parseContext.isEsProfile() || parseContext.version >= 130)
1884 return keyword;
1885
1886 if (parseContext.isForwardCompatible())
1887 parseContext.warn(loc, "using ES precision qualifier keyword", tokenText, "");
1888
1889 return identifierOrType();
1890 }
1891
matNxM()1892 int TScanContext::matNxM()
1893 {
1894 afterType = true;
1895
1896 if (parseContext.version > 110)
1897 return keyword;
1898
1899 if (parseContext.isForwardCompatible())
1900 parseContext.warn(loc, "using future non-square matrix type keyword", tokenText, "");
1901
1902 return identifierOrType();
1903 }
1904
dMat()1905 int TScanContext::dMat()
1906 {
1907 afterType = true;
1908
1909 if (parseContext.isEsProfile() && parseContext.version >= 300) {
1910 reservedWord();
1911
1912 return keyword;
1913 }
1914
1915 if (!parseContext.isEsProfile() && (parseContext.version >= 400 ||
1916 parseContext.symbolTable.atBuiltInLevel() ||
1917 (parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64)) ||
1918 (parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit)
1919 && parseContext.language == EShLangVertex)))
1920 return keyword;
1921
1922 if (parseContext.isForwardCompatible())
1923 parseContext.warn(loc, "using future type keyword", tokenText, "");
1924
1925 return identifierOrType();
1926 }
1927
firstGenerationImage(bool inEs310)1928 int TScanContext::firstGenerationImage(bool inEs310)
1929 {
1930 if (parseContext.symbolTable.atBuiltInLevel() ||
1931 (!parseContext.isEsProfile() && (parseContext.version >= 420 ||
1932 parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))) ||
1933 (inEs310 && parseContext.isEsProfile() && parseContext.version >= 310))
1934 return keyword;
1935
1936 if ((parseContext.isEsProfile() && parseContext.version >= 300) ||
1937 (!parseContext.isEsProfile() && parseContext.version >= 130)) {
1938 reservedWord();
1939
1940 return keyword;
1941 }
1942
1943 if (parseContext.isForwardCompatible())
1944 parseContext.warn(loc, "using future type keyword", tokenText, "");
1945
1946 return identifierOrType();
1947 }
1948
secondGenerationImage()1949 int TScanContext::secondGenerationImage()
1950 {
1951 if (parseContext.isEsProfile() && parseContext.version >= 310) {
1952 reservedWord();
1953 return keyword;
1954 }
1955
1956 if (parseContext.symbolTable.atBuiltInLevel() ||
1957 (!parseContext.isEsProfile() &&
1958 (parseContext.version >= 420 || parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))))
1959 return keyword;
1960
1961 if (parseContext.isForwardCompatible())
1962 parseContext.warn(loc, "using future type keyword", tokenText, "");
1963
1964 return identifierOrType();
1965 }
1966
1967 } // end namespace glslang
1968