1 //
2 // Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
3 // Copyright (C) 2013 LunarG, Inc.
4 // Copyright (C) 2017 ARM Limited.
5 //
6 // All rights reserved.
7 //
8 // Redistribution and use in source and binary forms, with or without
9 // modification, are permitted provided that the following conditions
10 // are met:
11 //
12 // Redistributions of source code must retain the above copyright
13 // notice, this list of conditions and the following disclaimer.
14 //
15 // Redistributions in binary form must reproduce the above
16 // copyright notice, this list of conditions and the following
17 // disclaimer in the documentation and/or other materials provided
18 // with the distribution.
19 //
20 // Neither the name of 3Dlabs Inc. Ltd. nor the names of its
21 // contributors may be used to endorse or promote products derived
22 // from this software without specific prior written permission.
23 //
24 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
27 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
28 // COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
29 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
30 // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
31 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
32 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
34 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 // POSSIBILITY OF SUCH DAMAGE.
36 //
37
38 //
39 // GLSL scanning, leveraging the scanning done by the preprocessor.
40 //
41
42 #include <cstring>
43 #include <unordered_map>
44 #include <unordered_set>
45
46 #include "../Include/Types.h"
47 #include "SymbolTable.h"
48 #include "ParseHelper.h"
49 #include "attribute.h"
50 #include "glslang_tab.cpp.h"
51 #include "ScanContext.h"
52 #include "Scan.h"
53
54 // preprocessor includes
55 #include "preprocessor/PpContext.h"
56 #include "preprocessor/PpTokens.h"
57
58 // Required to avoid missing prototype warnings for some compilers
59 int yylex(YYSTYPE*, glslang::TParseContext&);
60
61 namespace glslang {
62
63 // read past any white space
consumeWhiteSpace(bool & foundNonSpaceTab)64 void TInputScanner::consumeWhiteSpace(bool& foundNonSpaceTab)
65 {
66 int c = peek(); // don't accidentally consume anything other than whitespace
67 while (c == ' ' || c == '\t' || c == '\r' || c == '\n') {
68 if (c == '\r' || c == '\n')
69 foundNonSpaceTab = true;
70 get();
71 c = peek();
72 }
73 }
74
75 // return true if a comment was actually consumed
consumeComment()76 bool TInputScanner::consumeComment()
77 {
78 if (peek() != '/')
79 return false;
80
81 get(); // consume the '/'
82 int c = peek();
83 if (c == '/') {
84
85 // a '//' style comment
86 get(); // consume the second '/'
87 c = get();
88 do {
89 while (c != EndOfInput && c != '\\' && c != '\r' && c != '\n')
90 c = get();
91
92 if (c == EndOfInput || c == '\r' || c == '\n') {
93 while (c == '\r' || c == '\n')
94 c = get();
95
96 // we reached the end of the comment
97 break;
98 } else {
99 // it's a '\', so we need to keep going, after skipping what's escaped
100
101 // read the skipped character
102 c = get();
103
104 // if it's a two-character newline, skip both characters
105 if (c == '\r' && peek() == '\n')
106 get();
107 c = get();
108 }
109 } while (true);
110
111 // put back the last non-comment character
112 if (c != EndOfInput)
113 unget();
114
115 return true;
116 } else if (c == '*') {
117
118 // a '/*' style comment
119 get(); // consume the '*'
120 c = get();
121 do {
122 while (c != EndOfInput && c != '*')
123 c = get();
124 if (c == '*') {
125 c = get();
126 if (c == '/')
127 break; // end of comment
128 // not end of comment
129 } else // end of input
130 break;
131 } while (true);
132
133 return true;
134 } else {
135 // it's not a comment, put the '/' back
136 unget();
137
138 return false;
139 }
140 }
141
142 // skip whitespace, then skip a comment, rinse, repeat
consumeWhitespaceComment(bool & foundNonSpaceTab)143 void TInputScanner::consumeWhitespaceComment(bool& foundNonSpaceTab)
144 {
145 do {
146 consumeWhiteSpace(foundNonSpaceTab);
147
148 // if not starting a comment now, then done
149 int c = peek();
150 if (c != '/' || c == EndOfInput)
151 return;
152
153 // skip potential comment
154 foundNonSpaceTab = true;
155 if (! consumeComment())
156 return;
157
158 } while (true);
159 }
160
161 // Returns true if there was non-white space (e.g., a comment, newline) before the #version
162 // or no #version was found; otherwise, returns false. There is no error case, it always
163 // succeeds, but will leave version == 0 if no #version was found.
164 //
165 // Sets notFirstToken based on whether tokens (beyond white space and comments)
166 // appeared before the #version.
167 //
168 // N.B. does not attempt to leave input in any particular known state. The assumption
169 // is that scanning will start anew, following the rules for the chosen version/profile,
170 // and with a corresponding parsing context.
171 //
scanVersion(int & version,EProfile & profile,bool & notFirstToken)172 bool TInputScanner::scanVersion(int& version, EProfile& profile, bool& notFirstToken)
173 {
174 // This function doesn't have to get all the semantics correct,
175 // just find the #version if there is a correct one present.
176 // The preprocessor will have the responsibility of getting all the semantics right.
177
178 bool versionNotFirst = false; // means not first WRT comments and white space, nothing more
179 notFirstToken = false; // means not first WRT to real tokens
180 version = 0; // means not found
181 profile = ENoProfile;
182
183 bool foundNonSpaceTab = false;
184 bool lookingInMiddle = false;
185 int c;
186 do {
187 if (lookingInMiddle) {
188 notFirstToken = true;
189 // make forward progress by finishing off the current line plus extra new lines
190 if (peek() == '\n' || peek() == '\r') {
191 while (peek() == '\n' || peek() == '\r')
192 get();
193 } else
194 do {
195 c = get();
196 } while (c != EndOfInput && c != '\n' && c != '\r');
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 ()__anonea43aa940111::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 ()__anonea43aa940111::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)["return"] = RETURN;
369 (*KeywordMap)["void"] = VOID;
370 (*KeywordMap)["bool"] = BOOL;
371 (*KeywordMap)["float"] = FLOAT;
372 (*KeywordMap)["int"] = INT;
373 (*KeywordMap)["bvec2"] = BVEC2;
374 (*KeywordMap)["bvec3"] = BVEC3;
375 (*KeywordMap)["bvec4"] = BVEC4;
376 (*KeywordMap)["vec2"] = VEC2;
377 (*KeywordMap)["vec3"] = VEC3;
378 (*KeywordMap)["vec4"] = VEC4;
379 (*KeywordMap)["ivec2"] = IVEC2;
380 (*KeywordMap)["ivec3"] = IVEC3;
381 (*KeywordMap)["ivec4"] = IVEC4;
382 (*KeywordMap)["mat2"] = MAT2;
383 (*KeywordMap)["mat3"] = MAT3;
384 (*KeywordMap)["mat4"] = MAT4;
385 (*KeywordMap)["true"] = BOOLCONSTANT;
386 (*KeywordMap)["false"] = BOOLCONSTANT;
387 (*KeywordMap)["layout"] = LAYOUT;
388 (*KeywordMap)["shared"] = SHARED;
389 (*KeywordMap)["highp"] = HIGH_PRECISION;
390 (*KeywordMap)["mediump"] = MEDIUM_PRECISION;
391 (*KeywordMap)["lowp"] = LOW_PRECISION;
392 (*KeywordMap)["superp"] = SUPERP;
393 (*KeywordMap)["precision"] = PRECISION;
394 (*KeywordMap)["mat2x2"] = MAT2X2;
395 (*KeywordMap)["mat2x3"] = MAT2X3;
396 (*KeywordMap)["mat2x4"] = MAT2X4;
397 (*KeywordMap)["mat3x2"] = MAT3X2;
398 (*KeywordMap)["mat3x3"] = MAT3X3;
399 (*KeywordMap)["mat3x4"] = MAT3X4;
400 (*KeywordMap)["mat4x2"] = MAT4X2;
401 (*KeywordMap)["mat4x3"] = MAT4X3;
402 (*KeywordMap)["mat4x4"] = MAT4X4;
403 (*KeywordMap)["uint"] = UINT;
404 (*KeywordMap)["uvec2"] = UVEC2;
405 (*KeywordMap)["uvec3"] = UVEC3;
406 (*KeywordMap)["uvec4"] = UVEC4;
407
408 #ifndef GLSLANG_WEB
409 (*KeywordMap)["nonuniformEXT"] = NONUNIFORM;
410 (*KeywordMap)["demote"] = DEMOTE;
411 (*KeywordMap)["attribute"] = ATTRIBUTE;
412 (*KeywordMap)["varying"] = VARYING;
413 (*KeywordMap)["noperspective"] = NOPERSPECTIVE;
414 (*KeywordMap)["coherent"] = COHERENT;
415 (*KeywordMap)["devicecoherent"] = DEVICECOHERENT;
416 (*KeywordMap)["queuefamilycoherent"] = QUEUEFAMILYCOHERENT;
417 (*KeywordMap)["workgroupcoherent"] = WORKGROUPCOHERENT;
418 (*KeywordMap)["subgroupcoherent"] = SUBGROUPCOHERENT;
419 (*KeywordMap)["nonprivate"] = NONPRIVATE;
420 (*KeywordMap)["restrict"] = RESTRICT;
421 (*KeywordMap)["readonly"] = READONLY;
422 (*KeywordMap)["writeonly"] = WRITEONLY;
423 (*KeywordMap)["atomic_uint"] = ATOMIC_UINT;
424 (*KeywordMap)["volatile"] = VOLATILE;
425 (*KeywordMap)["patch"] = PATCH;
426 (*KeywordMap)["sample"] = SAMPLE;
427 (*KeywordMap)["subroutine"] = SUBROUTINE;
428 (*KeywordMap)["dmat2"] = DMAT2;
429 (*KeywordMap)["dmat3"] = DMAT3;
430 (*KeywordMap)["dmat4"] = DMAT4;
431 (*KeywordMap)["dmat2x2"] = DMAT2X2;
432 (*KeywordMap)["dmat2x3"] = DMAT2X3;
433 (*KeywordMap)["dmat2x4"] = DMAT2X4;
434 (*KeywordMap)["dmat3x2"] = DMAT3X2;
435 (*KeywordMap)["dmat3x3"] = DMAT3X3;
436 (*KeywordMap)["dmat3x4"] = DMAT3X4;
437 (*KeywordMap)["dmat4x2"] = DMAT4X2;
438 (*KeywordMap)["dmat4x3"] = DMAT4X3;
439 (*KeywordMap)["dmat4x4"] = DMAT4X4;
440 (*KeywordMap)["image1D"] = IMAGE1D;
441 (*KeywordMap)["iimage1D"] = IIMAGE1D;
442 (*KeywordMap)["uimage1D"] = UIMAGE1D;
443 (*KeywordMap)["image2D"] = IMAGE2D;
444 (*KeywordMap)["iimage2D"] = IIMAGE2D;
445 (*KeywordMap)["uimage2D"] = UIMAGE2D;
446 (*KeywordMap)["image3D"] = IMAGE3D;
447 (*KeywordMap)["iimage3D"] = IIMAGE3D;
448 (*KeywordMap)["uimage3D"] = UIMAGE3D;
449 (*KeywordMap)["image2DRect"] = IMAGE2DRECT;
450 (*KeywordMap)["iimage2DRect"] = IIMAGE2DRECT;
451 (*KeywordMap)["uimage2DRect"] = UIMAGE2DRECT;
452 (*KeywordMap)["imageCube"] = IMAGECUBE;
453 (*KeywordMap)["iimageCube"] = IIMAGECUBE;
454 (*KeywordMap)["uimageCube"] = UIMAGECUBE;
455 (*KeywordMap)["imageBuffer"] = IMAGEBUFFER;
456 (*KeywordMap)["iimageBuffer"] = IIMAGEBUFFER;
457 (*KeywordMap)["uimageBuffer"] = UIMAGEBUFFER;
458 (*KeywordMap)["image1DArray"] = IMAGE1DARRAY;
459 (*KeywordMap)["iimage1DArray"] = IIMAGE1DARRAY;
460 (*KeywordMap)["uimage1DArray"] = UIMAGE1DARRAY;
461 (*KeywordMap)["image2DArray"] = IMAGE2DARRAY;
462 (*KeywordMap)["iimage2DArray"] = IIMAGE2DARRAY;
463 (*KeywordMap)["uimage2DArray"] = UIMAGE2DARRAY;
464 (*KeywordMap)["imageCubeArray"] = IMAGECUBEARRAY;
465 (*KeywordMap)["iimageCubeArray"] = IIMAGECUBEARRAY;
466 (*KeywordMap)["uimageCubeArray"] = UIMAGECUBEARRAY;
467 (*KeywordMap)["image2DMS"] = IMAGE2DMS;
468 (*KeywordMap)["iimage2DMS"] = IIMAGE2DMS;
469 (*KeywordMap)["uimage2DMS"] = UIMAGE2DMS;
470 (*KeywordMap)["image2DMSArray"] = IMAGE2DMSARRAY;
471 (*KeywordMap)["iimage2DMSArray"] = IIMAGE2DMSARRAY;
472 (*KeywordMap)["uimage2DMSArray"] = UIMAGE2DMSARRAY;
473 (*KeywordMap)["double"] = DOUBLE;
474 (*KeywordMap)["dvec2"] = DVEC2;
475 (*KeywordMap)["dvec3"] = DVEC3;
476 (*KeywordMap)["dvec4"] = DVEC4;
477 (*KeywordMap)["int64_t"] = INT64_T;
478 (*KeywordMap)["uint64_t"] = UINT64_T;
479 (*KeywordMap)["i64vec2"] = I64VEC2;
480 (*KeywordMap)["i64vec3"] = I64VEC3;
481 (*KeywordMap)["i64vec4"] = I64VEC4;
482 (*KeywordMap)["u64vec2"] = U64VEC2;
483 (*KeywordMap)["u64vec3"] = U64VEC3;
484 (*KeywordMap)["u64vec4"] = U64VEC4;
485
486 // GL_EXT_shader_explicit_arithmetic_types
487 (*KeywordMap)["int8_t"] = INT8_T;
488 (*KeywordMap)["i8vec2"] = I8VEC2;
489 (*KeywordMap)["i8vec3"] = I8VEC3;
490 (*KeywordMap)["i8vec4"] = I8VEC4;
491 (*KeywordMap)["uint8_t"] = UINT8_T;
492 (*KeywordMap)["u8vec2"] = U8VEC2;
493 (*KeywordMap)["u8vec3"] = U8VEC3;
494 (*KeywordMap)["u8vec4"] = U8VEC4;
495
496 (*KeywordMap)["int16_t"] = INT16_T;
497 (*KeywordMap)["i16vec2"] = I16VEC2;
498 (*KeywordMap)["i16vec3"] = I16VEC3;
499 (*KeywordMap)["i16vec4"] = I16VEC4;
500 (*KeywordMap)["uint16_t"] = UINT16_T;
501 (*KeywordMap)["u16vec2"] = U16VEC2;
502 (*KeywordMap)["u16vec3"] = U16VEC3;
503 (*KeywordMap)["u16vec4"] = U16VEC4;
504
505 (*KeywordMap)["int32_t"] = INT32_T;
506 (*KeywordMap)["i32vec2"] = I32VEC2;
507 (*KeywordMap)["i32vec3"] = I32VEC3;
508 (*KeywordMap)["i32vec4"] = I32VEC4;
509 (*KeywordMap)["uint32_t"] = UINT32_T;
510 (*KeywordMap)["u32vec2"] = U32VEC2;
511 (*KeywordMap)["u32vec3"] = U32VEC3;
512 (*KeywordMap)["u32vec4"] = U32VEC4;
513
514 (*KeywordMap)["float16_t"] = FLOAT16_T;
515 (*KeywordMap)["f16vec2"] = F16VEC2;
516 (*KeywordMap)["f16vec3"] = F16VEC3;
517 (*KeywordMap)["f16vec4"] = F16VEC4;
518 (*KeywordMap)["f16mat2"] = F16MAT2;
519 (*KeywordMap)["f16mat3"] = F16MAT3;
520 (*KeywordMap)["f16mat4"] = F16MAT4;
521 (*KeywordMap)["f16mat2x2"] = F16MAT2X2;
522 (*KeywordMap)["f16mat2x3"] = F16MAT2X3;
523 (*KeywordMap)["f16mat2x4"] = F16MAT2X4;
524 (*KeywordMap)["f16mat3x2"] = F16MAT3X2;
525 (*KeywordMap)["f16mat3x3"] = F16MAT3X3;
526 (*KeywordMap)["f16mat3x4"] = F16MAT3X4;
527 (*KeywordMap)["f16mat4x2"] = F16MAT4X2;
528 (*KeywordMap)["f16mat4x3"] = F16MAT4X3;
529 (*KeywordMap)["f16mat4x4"] = F16MAT4X4;
530
531 (*KeywordMap)["float32_t"] = FLOAT32_T;
532 (*KeywordMap)["f32vec2"] = F32VEC2;
533 (*KeywordMap)["f32vec3"] = F32VEC3;
534 (*KeywordMap)["f32vec4"] = F32VEC4;
535 (*KeywordMap)["f32mat2"] = F32MAT2;
536 (*KeywordMap)["f32mat3"] = F32MAT3;
537 (*KeywordMap)["f32mat4"] = F32MAT4;
538 (*KeywordMap)["f32mat2x2"] = F32MAT2X2;
539 (*KeywordMap)["f32mat2x3"] = F32MAT2X3;
540 (*KeywordMap)["f32mat2x4"] = F32MAT2X4;
541 (*KeywordMap)["f32mat3x2"] = F32MAT3X2;
542 (*KeywordMap)["f32mat3x3"] = F32MAT3X3;
543 (*KeywordMap)["f32mat3x4"] = F32MAT3X4;
544 (*KeywordMap)["f32mat4x2"] = F32MAT4X2;
545 (*KeywordMap)["f32mat4x3"] = F32MAT4X3;
546 (*KeywordMap)["f32mat4x4"] = F32MAT4X4;
547 (*KeywordMap)["float64_t"] = FLOAT64_T;
548 (*KeywordMap)["f64vec2"] = F64VEC2;
549 (*KeywordMap)["f64vec3"] = F64VEC3;
550 (*KeywordMap)["f64vec4"] = F64VEC4;
551 (*KeywordMap)["f64mat2"] = F64MAT2;
552 (*KeywordMap)["f64mat3"] = F64MAT3;
553 (*KeywordMap)["f64mat4"] = F64MAT4;
554 (*KeywordMap)["f64mat2x2"] = F64MAT2X2;
555 (*KeywordMap)["f64mat2x3"] = F64MAT2X3;
556 (*KeywordMap)["f64mat2x4"] = F64MAT2X4;
557 (*KeywordMap)["f64mat3x2"] = F64MAT3X2;
558 (*KeywordMap)["f64mat3x3"] = F64MAT3X3;
559 (*KeywordMap)["f64mat3x4"] = F64MAT3X4;
560 (*KeywordMap)["f64mat4x2"] = F64MAT4X2;
561 (*KeywordMap)["f64mat4x3"] = F64MAT4X3;
562 (*KeywordMap)["f64mat4x4"] = F64MAT4X4;
563 #endif
564
565 (*KeywordMap)["sampler2D"] = SAMPLER2D;
566 (*KeywordMap)["samplerCube"] = SAMPLERCUBE;
567 (*KeywordMap)["samplerCubeShadow"] = SAMPLERCUBESHADOW;
568 (*KeywordMap)["sampler2DArray"] = SAMPLER2DARRAY;
569 (*KeywordMap)["sampler2DArrayShadow"] = SAMPLER2DARRAYSHADOW;
570 (*KeywordMap)["isampler2D"] = ISAMPLER2D;
571 (*KeywordMap)["isampler3D"] = ISAMPLER3D;
572 (*KeywordMap)["isamplerCube"] = ISAMPLERCUBE;
573 (*KeywordMap)["isampler2DArray"] = ISAMPLER2DARRAY;
574 (*KeywordMap)["usampler2D"] = USAMPLER2D;
575 (*KeywordMap)["usampler3D"] = USAMPLER3D;
576 (*KeywordMap)["usamplerCube"] = USAMPLERCUBE;
577 (*KeywordMap)["usampler2DArray"] = USAMPLER2DARRAY;
578 (*KeywordMap)["sampler3D"] = SAMPLER3D;
579 (*KeywordMap)["sampler2DShadow"] = SAMPLER2DSHADOW;
580
581 (*KeywordMap)["texture2D"] = TEXTURE2D;
582 (*KeywordMap)["textureCube"] = TEXTURECUBE;
583 (*KeywordMap)["texture2DArray"] = TEXTURE2DARRAY;
584 (*KeywordMap)["itexture2D"] = ITEXTURE2D;
585 (*KeywordMap)["itexture3D"] = ITEXTURE3D;
586 (*KeywordMap)["itextureCube"] = ITEXTURECUBE;
587 (*KeywordMap)["itexture2DArray"] = ITEXTURE2DARRAY;
588 (*KeywordMap)["utexture2D"] = UTEXTURE2D;
589 (*KeywordMap)["utexture3D"] = UTEXTURE3D;
590 (*KeywordMap)["utextureCube"] = UTEXTURECUBE;
591 (*KeywordMap)["utexture2DArray"] = UTEXTURE2DARRAY;
592 (*KeywordMap)["texture3D"] = TEXTURE3D;
593
594 (*KeywordMap)["sampler"] = SAMPLER;
595 (*KeywordMap)["samplerShadow"] = SAMPLERSHADOW;
596
597 #ifndef GLSLANG_WEB
598 (*KeywordMap)["textureCubeArray"] = TEXTURECUBEARRAY;
599 (*KeywordMap)["itextureCubeArray"] = ITEXTURECUBEARRAY;
600 (*KeywordMap)["utextureCubeArray"] = UTEXTURECUBEARRAY;
601 (*KeywordMap)["samplerCubeArray"] = SAMPLERCUBEARRAY;
602 (*KeywordMap)["samplerCubeArrayShadow"] = SAMPLERCUBEARRAYSHADOW;
603 (*KeywordMap)["isamplerCubeArray"] = ISAMPLERCUBEARRAY;
604 (*KeywordMap)["usamplerCubeArray"] = USAMPLERCUBEARRAY;
605 (*KeywordMap)["sampler1DArrayShadow"] = SAMPLER1DARRAYSHADOW;
606 (*KeywordMap)["isampler1DArray"] = ISAMPLER1DARRAY;
607 (*KeywordMap)["usampler1D"] = USAMPLER1D;
608 (*KeywordMap)["isampler1D"] = ISAMPLER1D;
609 (*KeywordMap)["usampler1DArray"] = USAMPLER1DARRAY;
610 (*KeywordMap)["samplerBuffer"] = SAMPLERBUFFER;
611 (*KeywordMap)["isampler2DRect"] = ISAMPLER2DRECT;
612 (*KeywordMap)["usampler2DRect"] = USAMPLER2DRECT;
613 (*KeywordMap)["isamplerBuffer"] = ISAMPLERBUFFER;
614 (*KeywordMap)["usamplerBuffer"] = USAMPLERBUFFER;
615 (*KeywordMap)["sampler2DMS"] = SAMPLER2DMS;
616 (*KeywordMap)["isampler2DMS"] = ISAMPLER2DMS;
617 (*KeywordMap)["usampler2DMS"] = USAMPLER2DMS;
618 (*KeywordMap)["sampler2DMSArray"] = SAMPLER2DMSARRAY;
619 (*KeywordMap)["isampler2DMSArray"] = ISAMPLER2DMSARRAY;
620 (*KeywordMap)["usampler2DMSArray"] = USAMPLER2DMSARRAY;
621 (*KeywordMap)["sampler1D"] = SAMPLER1D;
622 (*KeywordMap)["sampler1DShadow"] = SAMPLER1DSHADOW;
623 (*KeywordMap)["sampler2DRect"] = SAMPLER2DRECT;
624 (*KeywordMap)["sampler2DRectShadow"] = SAMPLER2DRECTSHADOW;
625 (*KeywordMap)["sampler1DArray"] = SAMPLER1DARRAY;
626
627 (*KeywordMap)["samplerExternalOES"] = SAMPLEREXTERNALOES; // GL_OES_EGL_image_external
628
629 (*KeywordMap)["__samplerExternal2DY2YEXT"] = SAMPLEREXTERNAL2DY2YEXT; // GL_EXT_YUV_target
630
631 (*KeywordMap)["itexture1DArray"] = ITEXTURE1DARRAY;
632 (*KeywordMap)["utexture1D"] = UTEXTURE1D;
633 (*KeywordMap)["itexture1D"] = ITEXTURE1D;
634 (*KeywordMap)["utexture1DArray"] = UTEXTURE1DARRAY;
635 (*KeywordMap)["textureBuffer"] = TEXTUREBUFFER;
636 (*KeywordMap)["itexture2DRect"] = ITEXTURE2DRECT;
637 (*KeywordMap)["utexture2DRect"] = UTEXTURE2DRECT;
638 (*KeywordMap)["itextureBuffer"] = ITEXTUREBUFFER;
639 (*KeywordMap)["utextureBuffer"] = UTEXTUREBUFFER;
640 (*KeywordMap)["texture2DMS"] = TEXTURE2DMS;
641 (*KeywordMap)["itexture2DMS"] = ITEXTURE2DMS;
642 (*KeywordMap)["utexture2DMS"] = UTEXTURE2DMS;
643 (*KeywordMap)["texture2DMSArray"] = TEXTURE2DMSARRAY;
644 (*KeywordMap)["itexture2DMSArray"] = ITEXTURE2DMSARRAY;
645 (*KeywordMap)["utexture2DMSArray"] = UTEXTURE2DMSARRAY;
646 (*KeywordMap)["texture1D"] = TEXTURE1D;
647 (*KeywordMap)["texture2DRect"] = TEXTURE2DRECT;
648 (*KeywordMap)["texture1DArray"] = TEXTURE1DARRAY;
649
650 (*KeywordMap)["subpassInput"] = SUBPASSINPUT;
651 (*KeywordMap)["subpassInputMS"] = SUBPASSINPUTMS;
652 (*KeywordMap)["isubpassInput"] = ISUBPASSINPUT;
653 (*KeywordMap)["isubpassInputMS"] = ISUBPASSINPUTMS;
654 (*KeywordMap)["usubpassInput"] = USUBPASSINPUT;
655 (*KeywordMap)["usubpassInputMS"] = USUBPASSINPUTMS;
656
657 (*KeywordMap)["f16sampler1D"] = F16SAMPLER1D;
658 (*KeywordMap)["f16sampler2D"] = F16SAMPLER2D;
659 (*KeywordMap)["f16sampler3D"] = F16SAMPLER3D;
660 (*KeywordMap)["f16sampler2DRect"] = F16SAMPLER2DRECT;
661 (*KeywordMap)["f16samplerCube"] = F16SAMPLERCUBE;
662 (*KeywordMap)["f16sampler1DArray"] = F16SAMPLER1DARRAY;
663 (*KeywordMap)["f16sampler2DArray"] = F16SAMPLER2DARRAY;
664 (*KeywordMap)["f16samplerCubeArray"] = F16SAMPLERCUBEARRAY;
665 (*KeywordMap)["f16samplerBuffer"] = F16SAMPLERBUFFER;
666 (*KeywordMap)["f16sampler2DMS"] = F16SAMPLER2DMS;
667 (*KeywordMap)["f16sampler2DMSArray"] = F16SAMPLER2DMSARRAY;
668 (*KeywordMap)["f16sampler1DShadow"] = F16SAMPLER1DSHADOW;
669 (*KeywordMap)["f16sampler2DShadow"] = F16SAMPLER2DSHADOW;
670 (*KeywordMap)["f16sampler2DRectShadow"] = F16SAMPLER2DRECTSHADOW;
671 (*KeywordMap)["f16samplerCubeShadow"] = F16SAMPLERCUBESHADOW;
672 (*KeywordMap)["f16sampler1DArrayShadow"] = F16SAMPLER1DARRAYSHADOW;
673 (*KeywordMap)["f16sampler2DArrayShadow"] = F16SAMPLER2DARRAYSHADOW;
674 (*KeywordMap)["f16samplerCubeArrayShadow"] = F16SAMPLERCUBEARRAYSHADOW;
675
676 (*KeywordMap)["f16image1D"] = F16IMAGE1D;
677 (*KeywordMap)["f16image2D"] = F16IMAGE2D;
678 (*KeywordMap)["f16image3D"] = F16IMAGE3D;
679 (*KeywordMap)["f16image2DRect"] = F16IMAGE2DRECT;
680 (*KeywordMap)["f16imageCube"] = F16IMAGECUBE;
681 (*KeywordMap)["f16image1DArray"] = F16IMAGE1DARRAY;
682 (*KeywordMap)["f16image2DArray"] = F16IMAGE2DARRAY;
683 (*KeywordMap)["f16imageCubeArray"] = F16IMAGECUBEARRAY;
684 (*KeywordMap)["f16imageBuffer"] = F16IMAGEBUFFER;
685 (*KeywordMap)["f16image2DMS"] = F16IMAGE2DMS;
686 (*KeywordMap)["f16image2DMSArray"] = F16IMAGE2DMSARRAY;
687
688 (*KeywordMap)["f16texture1D"] = F16TEXTURE1D;
689 (*KeywordMap)["f16texture2D"] = F16TEXTURE2D;
690 (*KeywordMap)["f16texture3D"] = F16TEXTURE3D;
691 (*KeywordMap)["f16texture2DRect"] = F16TEXTURE2DRECT;
692 (*KeywordMap)["f16textureCube"] = F16TEXTURECUBE;
693 (*KeywordMap)["f16texture1DArray"] = F16TEXTURE1DARRAY;
694 (*KeywordMap)["f16texture2DArray"] = F16TEXTURE2DARRAY;
695 (*KeywordMap)["f16textureCubeArray"] = F16TEXTURECUBEARRAY;
696 (*KeywordMap)["f16textureBuffer"] = F16TEXTUREBUFFER;
697 (*KeywordMap)["f16texture2DMS"] = F16TEXTURE2DMS;
698 (*KeywordMap)["f16texture2DMSArray"] = F16TEXTURE2DMSARRAY;
699
700 (*KeywordMap)["f16subpassInput"] = F16SUBPASSINPUT;
701 (*KeywordMap)["f16subpassInputMS"] = F16SUBPASSINPUTMS;
702 (*KeywordMap)["__explicitInterpAMD"] = EXPLICITINTERPAMD;
703 (*KeywordMap)["pervertexNV"] = PERVERTEXNV;
704 (*KeywordMap)["precise"] = PRECISE;
705
706 (*KeywordMap)["rayPayloadNV"] = PAYLOADNV;
707 (*KeywordMap)["rayPayloadInNV"] = PAYLOADINNV;
708 (*KeywordMap)["hitAttributeNV"] = HITATTRNV;
709 (*KeywordMap)["callableDataNV"] = CALLDATANV;
710 (*KeywordMap)["callableDataInNV"] = CALLDATAINNV;
711 (*KeywordMap)["accelerationStructureNV"] = ACCSTRUCTNV;
712 (*KeywordMap)["perprimitiveNV"] = PERPRIMITIVENV;
713 (*KeywordMap)["perviewNV"] = PERVIEWNV;
714 (*KeywordMap)["taskNV"] = PERTASKNV;
715
716 (*KeywordMap)["fcoopmatNV"] = FCOOPMATNV;
717 (*KeywordMap)["icoopmatNV"] = ICOOPMATNV;
718 (*KeywordMap)["ucoopmatNV"] = UCOOPMATNV;
719
720 ReservedSet = new std::unordered_set<const char*, str_hash, str_eq>;
721
722 ReservedSet->insert("common");
723 ReservedSet->insert("partition");
724 ReservedSet->insert("active");
725 ReservedSet->insert("asm");
726 ReservedSet->insert("class");
727 ReservedSet->insert("union");
728 ReservedSet->insert("enum");
729 ReservedSet->insert("typedef");
730 ReservedSet->insert("template");
731 ReservedSet->insert("this");
732 ReservedSet->insert("goto");
733 ReservedSet->insert("inline");
734 ReservedSet->insert("noinline");
735 ReservedSet->insert("public");
736 ReservedSet->insert("static");
737 ReservedSet->insert("extern");
738 ReservedSet->insert("external");
739 ReservedSet->insert("interface");
740 ReservedSet->insert("long");
741 ReservedSet->insert("short");
742 ReservedSet->insert("half");
743 ReservedSet->insert("fixed");
744 ReservedSet->insert("unsigned");
745 ReservedSet->insert("input");
746 ReservedSet->insert("output");
747 ReservedSet->insert("hvec2");
748 ReservedSet->insert("hvec3");
749 ReservedSet->insert("hvec4");
750 ReservedSet->insert("fvec2");
751 ReservedSet->insert("fvec3");
752 ReservedSet->insert("fvec4");
753 ReservedSet->insert("sampler3DRect");
754 ReservedSet->insert("filter");
755 ReservedSet->insert("sizeof");
756 ReservedSet->insert("cast");
757 ReservedSet->insert("namespace");
758 ReservedSet->insert("using");
759 #endif
760 }
761
deleteKeywordMap()762 void TScanContext::deleteKeywordMap()
763 {
764 delete KeywordMap;
765 KeywordMap = nullptr;
766 #ifndef GLSLANG_WEB
767 delete ReservedSet;
768 ReservedSet = nullptr;
769 #endif
770 }
771
772 // Called by yylex to get the next token.
773 // Returning 0 implies end of input.
tokenize(TPpContext * pp,TParserToken & token)774 int TScanContext::tokenize(TPpContext* pp, TParserToken& token)
775 {
776 do {
777 parserToken = &token;
778 TPpToken ppToken;
779 int token = pp->tokenize(ppToken);
780 if (token == EndOfInput)
781 return 0;
782
783 tokenText = ppToken.name;
784 loc = ppToken.loc;
785 parserToken->sType.lex.loc = loc;
786 switch (token) {
787 case ';': afterType = false; afterBuffer = false; return SEMICOLON;
788 case ',': afterType = false; return COMMA;
789 case ':': return COLON;
790 case '=': afterType = false; return EQUAL;
791 case '(': afterType = false; return LEFT_PAREN;
792 case ')': afterType = false; return RIGHT_PAREN;
793 case '.': field = true; return DOT;
794 case '!': return BANG;
795 case '-': return DASH;
796 case '~': return TILDE;
797 case '+': return PLUS;
798 case '*': return STAR;
799 case '/': return SLASH;
800 case '%': return PERCENT;
801 case '<': return LEFT_ANGLE;
802 case '>': return RIGHT_ANGLE;
803 case '|': return VERTICAL_BAR;
804 case '^': return CARET;
805 case '&': return AMPERSAND;
806 case '?': return QUESTION;
807 case '[': return LEFT_BRACKET;
808 case ']': return RIGHT_BRACKET;
809 case '{': afterStruct = false; afterBuffer = false; return LEFT_BRACE;
810 case '}': return RIGHT_BRACE;
811 case '\\':
812 parseContext.error(loc, "illegal use of escape character", "\\", "");
813 break;
814
815 case PPAtomAddAssign: return ADD_ASSIGN;
816 case PPAtomSubAssign: return SUB_ASSIGN;
817 case PPAtomMulAssign: return MUL_ASSIGN;
818 case PPAtomDivAssign: return DIV_ASSIGN;
819 case PPAtomModAssign: return MOD_ASSIGN;
820
821 case PpAtomRight: return RIGHT_OP;
822 case PpAtomLeft: return LEFT_OP;
823
824 case PpAtomRightAssign: return RIGHT_ASSIGN;
825 case PpAtomLeftAssign: return LEFT_ASSIGN;
826 case PpAtomAndAssign: return AND_ASSIGN;
827 case PpAtomOrAssign: return OR_ASSIGN;
828 case PpAtomXorAssign: return XOR_ASSIGN;
829
830 case PpAtomAnd: return AND_OP;
831 case PpAtomOr: return OR_OP;
832 case PpAtomXor: return XOR_OP;
833
834 case PpAtomEQ: return EQ_OP;
835 case PpAtomGE: return GE_OP;
836 case PpAtomNE: return NE_OP;
837 case PpAtomLE: return LE_OP;
838
839 case PpAtomDecrement: return DEC_OP;
840 case PpAtomIncrement: return INC_OP;
841
842 case PpAtomColonColon:
843 parseContext.error(loc, "not supported", "::", "");
844 break;
845
846 case PpAtomConstInt: parserToken->sType.lex.i = ppToken.ival; return INTCONSTANT;
847 case PpAtomConstUint: parserToken->sType.lex.i = ppToken.ival; return UINTCONSTANT;
848 case PpAtomConstFloat: parserToken->sType.lex.d = ppToken.dval; return FLOATCONSTANT;
849 #ifndef GLSLANG_WEB
850 case PpAtomConstInt16: parserToken->sType.lex.i = ppToken.ival; return INT16CONSTANT;
851 case PpAtomConstUint16: parserToken->sType.lex.i = ppToken.ival; return UINT16CONSTANT;
852 case PpAtomConstInt64: parserToken->sType.lex.i64 = ppToken.i64val; return INT64CONSTANT;
853 case PpAtomConstUint64: parserToken->sType.lex.i64 = ppToken.i64val; return UINT64CONSTANT;
854 case PpAtomConstDouble: parserToken->sType.lex.d = ppToken.dval; return DOUBLECONSTANT;
855 case PpAtomConstFloat16: parserToken->sType.lex.d = ppToken.dval; return FLOAT16CONSTANT;
856 #endif
857 case PpAtomIdentifier:
858 {
859 int token = tokenizeIdentifier();
860 field = false;
861 return token;
862 }
863
864 case EndOfInput: return 0;
865
866 default:
867 char buf[2];
868 buf[0] = (char)token;
869 buf[1] = 0;
870 parseContext.error(loc, "unexpected token", buf, "");
871 break;
872 }
873 } while (true);
874 }
875
tokenizeIdentifier()876 int TScanContext::tokenizeIdentifier()
877 {
878 #ifndef GLSLANG_WEB
879 if (ReservedSet->find(tokenText) != ReservedSet->end())
880 return reservedWord();
881 #endif
882
883 auto it = KeywordMap->find(tokenText);
884 if (it == KeywordMap->end()) {
885 // Should have an identifier of some sort
886 return identifierOrType();
887 }
888 keyword = it->second;
889
890 switch (keyword) {
891 case CONST:
892 case UNIFORM:
893 case IN:
894 case OUT:
895 case INOUT:
896 case BREAK:
897 case CONTINUE:
898 case DO:
899 case FOR:
900 case WHILE:
901 case IF:
902 case ELSE:
903 case DISCARD:
904 case RETURN:
905 case CASE:
906 return keyword;
907
908 case BUFFER:
909 afterBuffer = true;
910 if ((parseContext.isEsProfile() && parseContext.version < 310) ||
911 (!parseContext.isEsProfile() && parseContext.version < 430))
912 return identifierOrType();
913 return keyword;
914
915 case STRUCT:
916 afterStruct = true;
917 return keyword;
918
919 case SWITCH:
920 case DEFAULT:
921 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
922 (!parseContext.isEsProfile() && parseContext.version < 130))
923 reservedWord();
924 return keyword;
925
926 case VOID:
927 case BOOL:
928 case FLOAT:
929 case INT:
930 case BVEC2:
931 case BVEC3:
932 case BVEC4:
933 case VEC2:
934 case VEC3:
935 case VEC4:
936 case IVEC2:
937 case IVEC3:
938 case IVEC4:
939 case MAT2:
940 case MAT3:
941 case MAT4:
942 case SAMPLER2D:
943 case SAMPLERCUBE:
944 afterType = true;
945 return keyword;
946
947 case BOOLCONSTANT:
948 if (strcmp("true", tokenText) == 0)
949 parserToken->sType.lex.b = true;
950 else
951 parserToken->sType.lex.b = false;
952 return keyword;
953
954 case SMOOTH:
955 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
956 (!parseContext.isEsProfile() && parseContext.version < 130))
957 return identifierOrType();
958 return keyword;
959 case FLAT:
960 if (parseContext.isEsProfile() && parseContext.version < 300)
961 reservedWord();
962 else if (!parseContext.isEsProfile() && parseContext.version < 130)
963 return identifierOrType();
964 return keyword;
965 case CENTROID:
966 if (parseContext.version < 120)
967 return identifierOrType();
968 return keyword;
969 case INVARIANT:
970 if (!parseContext.isEsProfile() && parseContext.version < 120)
971 return identifierOrType();
972 return keyword;
973 case PACKED:
974 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
975 (!parseContext.isEsProfile() && parseContext.version < 330))
976 return reservedWord();
977 return identifierOrType();
978
979 case RESOURCE:
980 {
981 bool reserved = (parseContext.isEsProfile() && parseContext.version >= 300) ||
982 (!parseContext.isEsProfile() && parseContext.version >= 420);
983 return identifierOrReserved(reserved);
984 }
985 case SUPERP:
986 {
987 bool reserved = parseContext.isEsProfile() || parseContext.version >= 130;
988 return identifierOrReserved(reserved);
989 }
990
991 #ifndef GLSLANG_WEB
992 case NOPERSPECTIVE:
993 if (parseContext.extensionTurnedOn(E_GL_NV_shader_noperspective_interpolation))
994 return keyword;
995 return es30ReservedFromGLSL(130);
996
997 case NONUNIFORM:
998 if (parseContext.extensionTurnedOn(E_GL_EXT_nonuniform_qualifier))
999 return keyword;
1000 else
1001 return identifierOrType();
1002 case ATTRIBUTE:
1003 case VARYING:
1004 if (parseContext.isEsProfile() && parseContext.version >= 300)
1005 reservedWord();
1006 return keyword;
1007 case PAYLOADNV:
1008 case PAYLOADINNV:
1009 case HITATTRNV:
1010 case CALLDATANV:
1011 case CALLDATAINNV:
1012 case ACCSTRUCTNV:
1013 if (parseContext.symbolTable.atBuiltInLevel() ||
1014 parseContext.extensionTurnedOn(E_GL_NV_ray_tracing))
1015 return keyword;
1016 return identifierOrType();
1017 case ATOMIC_UINT:
1018 if ((parseContext.isEsProfile() && parseContext.version >= 310) ||
1019 parseContext.extensionTurnedOn(E_GL_ARB_shader_atomic_counters))
1020 return keyword;
1021 return es30ReservedFromGLSL(420);
1022
1023 case COHERENT:
1024 case DEVICECOHERENT:
1025 case QUEUEFAMILYCOHERENT:
1026 case WORKGROUPCOHERENT:
1027 case SUBGROUPCOHERENT:
1028 case NONPRIVATE:
1029 case RESTRICT:
1030 case READONLY:
1031 case WRITEONLY:
1032 if (parseContext.isEsProfile() && parseContext.version >= 310)
1033 return keyword;
1034 return es30ReservedFromGLSL(parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store) ? 130 : 420);
1035 case VOLATILE:
1036 if (parseContext.isEsProfile() && parseContext.version >= 310)
1037 return keyword;
1038 if (! parseContext.symbolTable.atBuiltInLevel() && (parseContext.isEsProfile() ||
1039 (parseContext.version < 420 && ! parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))))
1040 reservedWord();
1041 return keyword;
1042 case PATCH:
1043 if (parseContext.symbolTable.atBuiltInLevel() ||
1044 (parseContext.isEsProfile() &&
1045 (parseContext.version >= 320 ||
1046 parseContext.extensionsTurnedOn(Num_AEP_tessellation_shader, AEP_tessellation_shader))) ||
1047 (!parseContext.isEsProfile() && parseContext.extensionTurnedOn(E_GL_ARB_tessellation_shader)))
1048 return keyword;
1049
1050 return es30ReservedFromGLSL(400);
1051
1052 case SAMPLE:
1053 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1054 parseContext.extensionsTurnedOn(1, &E_GL_OES_shader_multisample_interpolation))
1055 return keyword;
1056 return es30ReservedFromGLSL(400);
1057
1058 case SUBROUTINE:
1059 return es30ReservedFromGLSL(400);
1060 #endif
1061 case SHARED:
1062 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1063 (!parseContext.isEsProfile() && parseContext.version < 140))
1064 return identifierOrType();
1065 return keyword;
1066 case LAYOUT:
1067 {
1068 const int numLayoutExts = 2;
1069 const char* layoutExts[numLayoutExts] = { E_GL_ARB_shading_language_420pack,
1070 E_GL_ARB_explicit_attrib_location };
1071 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1072 (!parseContext.isEsProfile() && parseContext.version < 140 &&
1073 ! parseContext.extensionsTurnedOn(numLayoutExts, layoutExts)))
1074 return identifierOrType();
1075 return keyword;
1076 }
1077
1078 case HIGH_PRECISION:
1079 case MEDIUM_PRECISION:
1080 case LOW_PRECISION:
1081 case PRECISION:
1082 return precisionKeyword();
1083
1084 case MAT2X2:
1085 case MAT2X3:
1086 case MAT2X4:
1087 case MAT3X2:
1088 case MAT3X3:
1089 case MAT3X4:
1090 case MAT4X2:
1091 case MAT4X3:
1092 case MAT4X4:
1093 return matNxM();
1094
1095 #ifndef GLSLANG_WEB
1096 case DMAT2:
1097 case DMAT3:
1098 case DMAT4:
1099 case DMAT2X2:
1100 case DMAT2X3:
1101 case DMAT2X4:
1102 case DMAT3X2:
1103 case DMAT3X3:
1104 case DMAT3X4:
1105 case DMAT4X2:
1106 case DMAT4X3:
1107 case DMAT4X4:
1108 return dMat();
1109
1110 case IMAGE1D:
1111 case IIMAGE1D:
1112 case UIMAGE1D:
1113 case IMAGE1DARRAY:
1114 case IIMAGE1DARRAY:
1115 case UIMAGE1DARRAY:
1116 case IMAGE2DRECT:
1117 case IIMAGE2DRECT:
1118 case UIMAGE2DRECT:
1119 afterType = true;
1120 return firstGenerationImage(false);
1121
1122 case IMAGEBUFFER:
1123 case IIMAGEBUFFER:
1124 case UIMAGEBUFFER:
1125 afterType = true;
1126 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1127 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1128 return keyword;
1129 return firstGenerationImage(false);
1130
1131 case IMAGE2D:
1132 case IIMAGE2D:
1133 case UIMAGE2D:
1134 case IMAGE3D:
1135 case IIMAGE3D:
1136 case UIMAGE3D:
1137 case IMAGECUBE:
1138 case IIMAGECUBE:
1139 case UIMAGECUBE:
1140 case IMAGE2DARRAY:
1141 case IIMAGE2DARRAY:
1142 case UIMAGE2DARRAY:
1143 afterType = true;
1144 return firstGenerationImage(true);
1145
1146 case IMAGECUBEARRAY:
1147 case IIMAGECUBEARRAY:
1148 case UIMAGECUBEARRAY:
1149 afterType = true;
1150 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1151 parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
1152 return keyword;
1153 return secondGenerationImage();
1154
1155 case IMAGE2DMS:
1156 case IIMAGE2DMS:
1157 case UIMAGE2DMS:
1158 case IMAGE2DMSARRAY:
1159 case IIMAGE2DMSARRAY:
1160 case UIMAGE2DMSARRAY:
1161 afterType = true;
1162 return secondGenerationImage();
1163
1164 case DOUBLE:
1165 case DVEC2:
1166 case DVEC3:
1167 case DVEC4:
1168 afterType = true;
1169 if (parseContext.isEsProfile() || parseContext.version < 150 ||
1170 (!parseContext.symbolTable.atBuiltInLevel() &&
1171 parseContext.version < 400 &&
1172 !parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64)))
1173 reservedWord();
1174 return keyword;
1175
1176 case INT64_T:
1177 case UINT64_T:
1178 case I64VEC2:
1179 case I64VEC3:
1180 case I64VEC4:
1181 case U64VEC2:
1182 case U64VEC3:
1183 case U64VEC4:
1184 afterType = true;
1185 if (parseContext.symbolTable.atBuiltInLevel() ||
1186 parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_int64) ||
1187 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1188 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int64))
1189 return keyword;
1190 return identifierOrType();
1191
1192 case INT8_T:
1193 case UINT8_T:
1194 case I8VEC2:
1195 case I8VEC3:
1196 case I8VEC4:
1197 case U8VEC2:
1198 case U8VEC3:
1199 case U8VEC4:
1200 afterType = true;
1201 if (parseContext.symbolTable.atBuiltInLevel() ||
1202 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1203 parseContext.extensionTurnedOn(E_GL_EXT_shader_8bit_storage) ||
1204 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int8))
1205 return keyword;
1206 return identifierOrType();
1207
1208 case INT16_T:
1209 case UINT16_T:
1210 case I16VEC2:
1211 case I16VEC3:
1212 case I16VEC4:
1213 case U16VEC2:
1214 case U16VEC3:
1215 case U16VEC4:
1216 afterType = true;
1217 if (parseContext.symbolTable.atBuiltInLevel() ||
1218 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_int16) ||
1219 parseContext.extensionTurnedOn(E_GL_EXT_shader_16bit_storage) ||
1220 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1221 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int16))
1222 return keyword;
1223 return identifierOrType();
1224 case INT32_T:
1225 case UINT32_T:
1226 case I32VEC2:
1227 case I32VEC3:
1228 case I32VEC4:
1229 case U32VEC2:
1230 case U32VEC3:
1231 case U32VEC4:
1232 afterType = true;
1233 if (parseContext.symbolTable.atBuiltInLevel() ||
1234 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1235 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int32))
1236 return keyword;
1237 return identifierOrType();
1238 case FLOAT32_T:
1239 case F32VEC2:
1240 case F32VEC3:
1241 case F32VEC4:
1242 case F32MAT2:
1243 case F32MAT3:
1244 case F32MAT4:
1245 case F32MAT2X2:
1246 case F32MAT2X3:
1247 case F32MAT2X4:
1248 case F32MAT3X2:
1249 case F32MAT3X3:
1250 case F32MAT3X4:
1251 case F32MAT4X2:
1252 case F32MAT4X3:
1253 case F32MAT4X4:
1254 afterType = true;
1255 if (parseContext.symbolTable.atBuiltInLevel() ||
1256 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1257 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float32))
1258 return keyword;
1259 return identifierOrType();
1260
1261 case FLOAT64_T:
1262 case F64VEC2:
1263 case F64VEC3:
1264 case F64VEC4:
1265 case F64MAT2:
1266 case F64MAT3:
1267 case F64MAT4:
1268 case F64MAT2X2:
1269 case F64MAT2X3:
1270 case F64MAT2X4:
1271 case F64MAT3X2:
1272 case F64MAT3X3:
1273 case F64MAT3X4:
1274 case F64MAT4X2:
1275 case F64MAT4X3:
1276 case F64MAT4X4:
1277 afterType = true;
1278 if (parseContext.symbolTable.atBuiltInLevel() ||
1279 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1280 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float64))
1281 return keyword;
1282 return identifierOrType();
1283
1284 case FLOAT16_T:
1285 case F16VEC2:
1286 case F16VEC3:
1287 case F16VEC4:
1288 afterType = true;
1289 if (parseContext.symbolTable.atBuiltInLevel() ||
1290 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) ||
1291 parseContext.extensionTurnedOn(E_GL_EXT_shader_16bit_storage) ||
1292 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1293 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float16))
1294 return keyword;
1295
1296 return identifierOrType();
1297
1298 case F16MAT2:
1299 case F16MAT3:
1300 case F16MAT4:
1301 case F16MAT2X2:
1302 case F16MAT2X3:
1303 case F16MAT2X4:
1304 case F16MAT3X2:
1305 case F16MAT3X3:
1306 case F16MAT3X4:
1307 case F16MAT4X2:
1308 case F16MAT4X3:
1309 case F16MAT4X4:
1310 afterType = true;
1311 if (parseContext.symbolTable.atBuiltInLevel() ||
1312 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) ||
1313 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
1314 parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float16))
1315 return keyword;
1316
1317 return identifierOrType();
1318
1319 case SAMPLERCUBEARRAY:
1320 case SAMPLERCUBEARRAYSHADOW:
1321 case ISAMPLERCUBEARRAY:
1322 case USAMPLERCUBEARRAY:
1323 afterType = true;
1324 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1325 parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
1326 return keyword;
1327 if (parseContext.isEsProfile() || (parseContext.version < 400 && ! parseContext.extensionTurnedOn(E_GL_ARB_texture_cube_map_array)))
1328 reservedWord();
1329 return keyword;
1330
1331 case TEXTURECUBEARRAY:
1332 case ITEXTURECUBEARRAY:
1333 case UTEXTURECUBEARRAY:
1334 if (parseContext.spvVersion.vulkan > 0)
1335 return keyword;
1336 else
1337 return identifierOrType();
1338 #endif
1339
1340 case UINT:
1341 case UVEC2:
1342 case UVEC3:
1343 case UVEC4:
1344 case SAMPLERCUBESHADOW:
1345 case SAMPLER2DARRAY:
1346 case SAMPLER2DARRAYSHADOW:
1347 case ISAMPLER2D:
1348 case ISAMPLER3D:
1349 case ISAMPLERCUBE:
1350 case ISAMPLER2DARRAY:
1351 case USAMPLER2D:
1352 case USAMPLER3D:
1353 case USAMPLERCUBE:
1354 case USAMPLER2DARRAY:
1355 afterType = true;
1356 return nonreservedKeyword(300, 130);
1357
1358 case SAMPLER3D:
1359 afterType = true;
1360 if (parseContext.isEsProfile() && parseContext.version < 300) {
1361 if (!parseContext.extensionTurnedOn(E_GL_OES_texture_3D))
1362 reservedWord();
1363 }
1364 return keyword;
1365
1366 case SAMPLER2DSHADOW:
1367 afterType = true;
1368 if (parseContext.isEsProfile() && parseContext.version < 300) {
1369 if (!parseContext.extensionTurnedOn(E_GL_EXT_shadow_samplers))
1370 reservedWord();
1371 }
1372 return keyword;
1373
1374 case TEXTURE2D:
1375 case TEXTURECUBE:
1376 case TEXTURE2DARRAY:
1377 case ITEXTURE2D:
1378 case ITEXTURE3D:
1379 case ITEXTURECUBE:
1380 case ITEXTURE2DARRAY:
1381 case UTEXTURE2D:
1382 case UTEXTURE3D:
1383 case UTEXTURECUBE:
1384 case UTEXTURE2DARRAY:
1385 case TEXTURE3D:
1386 case SAMPLER:
1387 case SAMPLERSHADOW:
1388 if (parseContext.spvVersion.vulkan > 0)
1389 return keyword;
1390 else
1391 return identifierOrType();
1392
1393 #ifndef GLSLANG_WEB
1394 case ISAMPLER1D:
1395 case ISAMPLER1DARRAY:
1396 case SAMPLER1DARRAYSHADOW:
1397 case USAMPLER1D:
1398 case USAMPLER1DARRAY:
1399 afterType = true;
1400 return es30ReservedFromGLSL(130);
1401 case ISAMPLER2DRECT:
1402 case USAMPLER2DRECT:
1403 afterType = true;
1404 return es30ReservedFromGLSL(140);
1405
1406 case SAMPLERBUFFER:
1407 afterType = true;
1408 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1409 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1410 return keyword;
1411 return es30ReservedFromGLSL(130);
1412
1413 case ISAMPLERBUFFER:
1414 case USAMPLERBUFFER:
1415 afterType = true;
1416 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1417 parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
1418 return keyword;
1419 return es30ReservedFromGLSL(140);
1420
1421 case SAMPLER2DMS:
1422 case ISAMPLER2DMS:
1423 case USAMPLER2DMS:
1424 afterType = true;
1425 if (parseContext.isEsProfile() && parseContext.version >= 310)
1426 return keyword;
1427 if (!parseContext.isEsProfile() && (parseContext.version > 140 ||
1428 (parseContext.version == 140 && parseContext.extensionsTurnedOn(1, &E_GL_ARB_texture_multisample))))
1429 return keyword;
1430 return es30ReservedFromGLSL(150);
1431
1432 case SAMPLER2DMSARRAY:
1433 case ISAMPLER2DMSARRAY:
1434 case USAMPLER2DMSARRAY:
1435 afterType = true;
1436 if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
1437 parseContext.extensionsTurnedOn(1, &E_GL_OES_texture_storage_multisample_2d_array))
1438 return keyword;
1439 if (!parseContext.isEsProfile() && (parseContext.version > 140 ||
1440 (parseContext.version == 140 && parseContext.extensionsTurnedOn(1, &E_GL_ARB_texture_multisample))))
1441 return keyword;
1442 return es30ReservedFromGLSL(150);
1443
1444 case SAMPLER1D:
1445 case SAMPLER1DSHADOW:
1446 afterType = true;
1447 if (parseContext.isEsProfile())
1448 reservedWord();
1449 return keyword;
1450
1451 case SAMPLER2DRECT:
1452 case SAMPLER2DRECTSHADOW:
1453 afterType = true;
1454 if (parseContext.isEsProfile())
1455 reservedWord();
1456 else if (parseContext.version < 140 && ! parseContext.symbolTable.atBuiltInLevel() && ! parseContext.extensionTurnedOn(E_GL_ARB_texture_rectangle)) {
1457 if (parseContext.relaxedErrors())
1458 parseContext.requireExtensions(loc, 1, &E_GL_ARB_texture_rectangle, "texture-rectangle sampler keyword");
1459 else
1460 reservedWord();
1461 }
1462 return keyword;
1463
1464 case SAMPLER1DARRAY:
1465 afterType = true;
1466 if (parseContext.isEsProfile() && parseContext.version == 300)
1467 reservedWord();
1468 else if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1469 (!parseContext.isEsProfile() && parseContext.version < 130))
1470 return identifierOrType();
1471 return keyword;
1472
1473 case SAMPLEREXTERNALOES:
1474 afterType = true;
1475 if (parseContext.symbolTable.atBuiltInLevel() ||
1476 parseContext.extensionTurnedOn(E_GL_OES_EGL_image_external) ||
1477 parseContext.extensionTurnedOn(E_GL_OES_EGL_image_external_essl3))
1478 return keyword;
1479 return identifierOrType();
1480
1481 case SAMPLEREXTERNAL2DY2YEXT:
1482 afterType = true;
1483 if (parseContext.symbolTable.atBuiltInLevel() ||
1484 parseContext.extensionTurnedOn(E_GL_EXT_YUV_target))
1485 return keyword;
1486 return identifierOrType();
1487
1488 case ITEXTURE1DARRAY:
1489 case UTEXTURE1D:
1490 case ITEXTURE1D:
1491 case UTEXTURE1DARRAY:
1492 case TEXTUREBUFFER:
1493 case ITEXTURE2DRECT:
1494 case UTEXTURE2DRECT:
1495 case ITEXTUREBUFFER:
1496 case UTEXTUREBUFFER:
1497 case TEXTURE2DMS:
1498 case ITEXTURE2DMS:
1499 case UTEXTURE2DMS:
1500 case TEXTURE2DMSARRAY:
1501 case ITEXTURE2DMSARRAY:
1502 case UTEXTURE2DMSARRAY:
1503 case TEXTURE1D:
1504 case TEXTURE2DRECT:
1505 case TEXTURE1DARRAY:
1506 if (parseContext.spvVersion.vulkan > 0)
1507 return keyword;
1508 else
1509 return identifierOrType();
1510
1511 case SUBPASSINPUT:
1512 case SUBPASSINPUTMS:
1513 case ISUBPASSINPUT:
1514 case ISUBPASSINPUTMS:
1515 case USUBPASSINPUT:
1516 case USUBPASSINPUTMS:
1517 if (parseContext.spvVersion.vulkan > 0)
1518 return keyword;
1519 else
1520 return identifierOrType();
1521
1522 case F16SAMPLER1D:
1523 case F16SAMPLER2D:
1524 case F16SAMPLER3D:
1525 case F16SAMPLER2DRECT:
1526 case F16SAMPLERCUBE:
1527 case F16SAMPLER1DARRAY:
1528 case F16SAMPLER2DARRAY:
1529 case F16SAMPLERCUBEARRAY:
1530 case F16SAMPLERBUFFER:
1531 case F16SAMPLER2DMS:
1532 case F16SAMPLER2DMSARRAY:
1533 case F16SAMPLER1DSHADOW:
1534 case F16SAMPLER2DSHADOW:
1535 case F16SAMPLER1DARRAYSHADOW:
1536 case F16SAMPLER2DARRAYSHADOW:
1537 case F16SAMPLER2DRECTSHADOW:
1538 case F16SAMPLERCUBESHADOW:
1539 case F16SAMPLERCUBEARRAYSHADOW:
1540
1541 case F16IMAGE1D:
1542 case F16IMAGE2D:
1543 case F16IMAGE3D:
1544 case F16IMAGE2DRECT:
1545 case F16IMAGECUBE:
1546 case F16IMAGE1DARRAY:
1547 case F16IMAGE2DARRAY:
1548 case F16IMAGECUBEARRAY:
1549 case F16IMAGEBUFFER:
1550 case F16IMAGE2DMS:
1551 case F16IMAGE2DMSARRAY:
1552
1553 case F16TEXTURE1D:
1554 case F16TEXTURE2D:
1555 case F16TEXTURE3D:
1556 case F16TEXTURE2DRECT:
1557 case F16TEXTURECUBE:
1558 case F16TEXTURE1DARRAY:
1559 case F16TEXTURE2DARRAY:
1560 case F16TEXTURECUBEARRAY:
1561 case F16TEXTUREBUFFER:
1562 case F16TEXTURE2DMS:
1563 case F16TEXTURE2DMSARRAY:
1564
1565 case F16SUBPASSINPUT:
1566 case F16SUBPASSINPUTMS:
1567 afterType = true;
1568 if (parseContext.symbolTable.atBuiltInLevel() ||
1569 parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float_fetch))
1570 return keyword;
1571 return identifierOrType();
1572
1573 case EXPLICITINTERPAMD:
1574 if (parseContext.extensionTurnedOn(E_GL_AMD_shader_explicit_vertex_parameter))
1575 return keyword;
1576 return identifierOrType();
1577
1578 case PERVERTEXNV:
1579 if ((!parseContext.isEsProfile() && parseContext.version >= 450) ||
1580 parseContext.extensionTurnedOn(E_GL_NV_fragment_shader_barycentric))
1581 return keyword;
1582 return identifierOrType();
1583
1584 case PRECISE:
1585 if ((parseContext.isEsProfile() &&
1586 (parseContext.version >= 320 || parseContext.extensionsTurnedOn(Num_AEP_gpu_shader5, AEP_gpu_shader5))) ||
1587 (!parseContext.isEsProfile() && parseContext.version >= 400))
1588 return keyword;
1589 if (parseContext.isEsProfile() && parseContext.version == 310) {
1590 reservedWord();
1591 return keyword;
1592 }
1593 return identifierOrType();
1594
1595 case PERPRIMITIVENV:
1596 case PERVIEWNV:
1597 case PERTASKNV:
1598 if ((!parseContext.isEsProfile() && parseContext.version >= 450) ||
1599 (parseContext.isEsProfile() && parseContext.version >= 320) ||
1600 parseContext.extensionTurnedOn(E_GL_NV_mesh_shader))
1601 return keyword;
1602 return identifierOrType();
1603
1604 case FCOOPMATNV:
1605 afterType = true;
1606 if (parseContext.symbolTable.atBuiltInLevel() ||
1607 parseContext.extensionTurnedOn(E_GL_NV_cooperative_matrix))
1608 return keyword;
1609 return identifierOrType();
1610
1611 case UCOOPMATNV:
1612 case ICOOPMATNV:
1613 afterType = true;
1614 if (parseContext.symbolTable.atBuiltInLevel() ||
1615 parseContext.extensionTurnedOn(E_GL_NV_integer_cooperative_matrix))
1616 return keyword;
1617 return identifierOrType();
1618
1619 case DEMOTE:
1620 if (parseContext.extensionTurnedOn(E_GL_EXT_demote_to_helper_invocation))
1621 return keyword;
1622 else
1623 return identifierOrType();
1624 #endif
1625
1626 default:
1627 parseContext.infoSink.info.message(EPrefixInternalError, "Unknown glslang keyword", loc);
1628 return 0;
1629 }
1630 }
1631
identifierOrType()1632 int TScanContext::identifierOrType()
1633 {
1634 parserToken->sType.lex.string = NewPoolTString(tokenText);
1635 if (field)
1636 return IDENTIFIER;
1637
1638 parserToken->sType.lex.symbol = parseContext.symbolTable.find(*parserToken->sType.lex.string);
1639 if ((afterType == false && afterStruct == false) && parserToken->sType.lex.symbol != nullptr) {
1640 if (const TVariable* variable = parserToken->sType.lex.symbol->getAsVariable()) {
1641 if (variable->isUserType() &&
1642 // treat redeclaration of forward-declared buffer/uniform reference as an identifier
1643 !(variable->getType().isReference() && afterBuffer)) {
1644 afterType = true;
1645
1646 return TYPE_NAME;
1647 }
1648 }
1649 }
1650
1651 return IDENTIFIER;
1652 }
1653
1654 // Give an error for use of a reserved symbol.
1655 // However, allow built-in declarations to use reserved words, to allow
1656 // extension support before the extension is enabled.
reservedWord()1657 int TScanContext::reservedWord()
1658 {
1659 if (! parseContext.symbolTable.atBuiltInLevel())
1660 parseContext.error(loc, "Reserved word.", tokenText, "", "");
1661
1662 return 0;
1663 }
1664
identifierOrReserved(bool reserved)1665 int TScanContext::identifierOrReserved(bool reserved)
1666 {
1667 if (reserved) {
1668 reservedWord();
1669
1670 return 0;
1671 }
1672
1673 if (parseContext.isForwardCompatible())
1674 parseContext.warn(loc, "using future reserved keyword", tokenText, "");
1675
1676 return identifierOrType();
1677 }
1678
1679 // For keywords that suddenly showed up on non-ES (not previously reserved)
1680 // but then got reserved by ES 3.0.
es30ReservedFromGLSL(int version)1681 int TScanContext::es30ReservedFromGLSL(int version)
1682 {
1683 if (parseContext.symbolTable.atBuiltInLevel())
1684 return keyword;
1685
1686 if ((parseContext.isEsProfile() && parseContext.version < 300) ||
1687 (!parseContext.isEsProfile() && parseContext.version < version)) {
1688 if (parseContext.isForwardCompatible())
1689 parseContext.warn(loc, "future reserved word in ES 300 and keyword in GLSL", tokenText, "");
1690
1691 return identifierOrType();
1692 } else if (parseContext.isEsProfile() && parseContext.version >= 300)
1693 reservedWord();
1694
1695 return keyword;
1696 }
1697
1698 // For a keyword that was never reserved, until it suddenly
1699 // showed up, both in an es version and a non-ES version.
nonreservedKeyword(int esVersion,int nonEsVersion)1700 int TScanContext::nonreservedKeyword(int esVersion, int nonEsVersion)
1701 {
1702 if ((parseContext.isEsProfile() && parseContext.version < esVersion) ||
1703 (!parseContext.isEsProfile() && parseContext.version < nonEsVersion)) {
1704 if (parseContext.isForwardCompatible())
1705 parseContext.warn(loc, "using future keyword", tokenText, "");
1706
1707 return identifierOrType();
1708 }
1709
1710 return keyword;
1711 }
1712
precisionKeyword()1713 int TScanContext::precisionKeyword()
1714 {
1715 if (parseContext.isEsProfile() || parseContext.version >= 130)
1716 return keyword;
1717
1718 if (parseContext.isForwardCompatible())
1719 parseContext.warn(loc, "using ES precision qualifier keyword", tokenText, "");
1720
1721 return identifierOrType();
1722 }
1723
matNxM()1724 int TScanContext::matNxM()
1725 {
1726 afterType = true;
1727
1728 if (parseContext.version > 110)
1729 return keyword;
1730
1731 if (parseContext.isForwardCompatible())
1732 parseContext.warn(loc, "using future non-square matrix type keyword", tokenText, "");
1733
1734 return identifierOrType();
1735 }
1736
dMat()1737 int TScanContext::dMat()
1738 {
1739 afterType = true;
1740
1741 if (parseContext.isEsProfile() && parseContext.version >= 300) {
1742 reservedWord();
1743
1744 return keyword;
1745 }
1746
1747 if (!parseContext.isEsProfile() && (parseContext.version >= 400 ||
1748 parseContext.symbolTable.atBuiltInLevel() ||
1749 (parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64))))
1750 return keyword;
1751
1752 if (parseContext.isForwardCompatible())
1753 parseContext.warn(loc, "using future type keyword", tokenText, "");
1754
1755 return identifierOrType();
1756 }
1757
firstGenerationImage(bool inEs310)1758 int TScanContext::firstGenerationImage(bool inEs310)
1759 {
1760 if (parseContext.symbolTable.atBuiltInLevel() ||
1761 (!parseContext.isEsProfile() && (parseContext.version >= 420 ||
1762 parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))) ||
1763 (inEs310 && parseContext.isEsProfile() && parseContext.version >= 310))
1764 return keyword;
1765
1766 if ((parseContext.isEsProfile() && parseContext.version >= 300) ||
1767 (!parseContext.isEsProfile() && parseContext.version >= 130)) {
1768 reservedWord();
1769
1770 return keyword;
1771 }
1772
1773 if (parseContext.isForwardCompatible())
1774 parseContext.warn(loc, "using future type keyword", tokenText, "");
1775
1776 return identifierOrType();
1777 }
1778
secondGenerationImage()1779 int TScanContext::secondGenerationImage()
1780 {
1781 if (parseContext.isEsProfile() && parseContext.version >= 310) {
1782 reservedWord();
1783 return keyword;
1784 }
1785
1786 if (parseContext.symbolTable.atBuiltInLevel() ||
1787 (!parseContext.isEsProfile() &&
1788 (parseContext.version >= 420 || parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))))
1789 return keyword;
1790
1791 if (parseContext.isForwardCompatible())
1792 parseContext.warn(loc, "using future type keyword", tokenText, "");
1793
1794 return identifierOrType();
1795 }
1796
1797 } // end namespace glslang
1798