2 // Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
3 // Copyright (C) 2012-2013 LunarG, Inc.
5 // All rights reserved.
7 // Redistribution and use in source and binary forms, with or without
8 // modification, are permitted provided that the following conditions
11 // Redistributions of source code must retain the above copyright
12 // notice, this list of conditions and the following disclaimer.
14 // Redistributions in binary form must reproduce the above
15 // copyright notice, this list of conditions and the following
16 // disclaimer in the documentation and/or other materials provided
17 // with the distribution.
19 // Neither the name of 3Dlabs Inc. Ltd. nor the names of its
20 // contributors may be used to endorse or promote products derived
21 // from this software without specific prior written permission.
23 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27 // COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
29 // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
31 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
33 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 // POSSIBILITY OF SUCH DAMAGE.
38 // Symbol table for parsing. Most functionality and main ideas
39 // are documented in the header file.
42 #include "SymbolTable.h"
47 // TType helper function needs a place to live.
51 // Recursively generate mangled names.
53 void TType::buildMangledName(TString& mangledName) const
61 case EbtFloat: mangledName += 'f'; break;
62 case EbtDouble: mangledName += 'd'; break;
64 case EbtFloat16: mangledName += "f16"; break;
66 case EbtInt: mangledName += 'i'; break;
67 case EbtUint: mangledName += 'u'; break;
68 case EbtInt64: mangledName += "i64"; break;
69 case EbtUint64: mangledName += "u64"; break;
71 case EbtInt16: mangledName += "i16"; break;
72 case EbtUint16: mangledName += "u16"; break;
74 case EbtBool: mangledName += 'b'; break;
75 case EbtAtomicUint: mangledName += "au"; break;
77 switch (sampler.type) {
79 case EbtFloat16: mangledName += "f16"; break;
81 case EbtInt: mangledName += "i"; break;
82 case EbtUint: mangledName += "u"; break;
83 default: break; // some compilers want this
86 mangledName += "I"; // a normal image
87 else if (sampler.sampler)
88 mangledName += "p"; // a "pure" sampler
89 else if (!sampler.combined)
90 mangledName += "t"; // a "pure" texture
92 mangledName += "s"; // traditional combined sampler
99 switch (sampler.dim) {
100 case Esd1D: mangledName += "1"; break;
101 case Esd2D: mangledName += "2"; break;
102 case Esd3D: mangledName += "3"; break;
103 case EsdCube: mangledName += "C"; break;
104 case EsdRect: mangledName += "R2"; break;
105 case EsdBuffer: mangledName += "B"; break;
106 case EsdSubpass: mangledName += "P"; break;
107 default: break; // some compilers want this
110 if (sampler.hasReturnStruct()) {
111 // Name mangle for sampler return struct uses struct table index.
112 mangledName += "-tx-struct";
114 char text[16]; // plenty enough space for the small integers.
115 snprintf(text, sizeof(text), "%d-", sampler.structReturnIndex);
118 switch (sampler.getVectorSize()) {
119 case 1: mangledName += "1"; break;
120 case 2: mangledName += "2"; break;
121 case 3: mangledName += "3"; break;
122 case 4: break; // default to prior name mangle behavior
131 if (basicType == EbtStruct)
132 mangledName += "struct-";
134 mangledName += "block-";
136 mangledName += *typeName;
137 for (unsigned int i = 0; i < structure->size(); ++i) {
139 (*structure)[i].type->buildMangledName(mangledName);
145 if (getVectorSize() > 0)
146 mangledName += static_cast<char>('0' + getVectorSize());
148 mangledName += static_cast<char>('0' + getMatrixCols());
149 mangledName += static_cast<char>('0' + getMatrixRows());
153 const int maxSize = 11;
155 for (int i = 0; i < arraySizes->getNumDims(); ++i) {
156 if (arraySizes->getDimNode(i)) {
157 if (arraySizes->getDimNode(i)->getAsSymbolNode())
158 snprintf(buf, maxSize, "s%d", arraySizes->getDimNode(i)->getAsSymbolNode()->getId());
160 snprintf(buf, maxSize, "s%p", arraySizes->getDimNode(i));
162 snprintf(buf, maxSize, "%d", arraySizes->getDimSize(i));
174 void TVariable::dump(TInfoSink& infoSink) const
176 infoSink.debug << getName().c_str() << ": " << type.getStorageQualifierString() << " " << type.getBasicTypeString();
177 if (type.isArray()) {
178 infoSink.debug << "[0]";
180 infoSink.debug << "\n";
183 void TFunction::dump(TInfoSink& infoSink) const
185 infoSink.debug << getName().c_str() << ": " << returnType.getBasicTypeString() << " " << getMangledName().c_str() << "\n";
188 void TAnonMember::dump(TInfoSink& TInfoSink) const
190 TInfoSink.debug << "anonymous member " << getMemberNumber() << " of " << getAnonContainer().getName().c_str() << "\n";
193 void TSymbolTableLevel::dump(TInfoSink &infoSink) const
195 tLevel::const_iterator it;
196 for (it = level.begin(); it != level.end(); ++it)
197 (*it).second->dump(infoSink);
200 void TSymbolTable::dump(TInfoSink &infoSink) const
202 for (int level = currentLevel(); level >= 0; --level) {
203 infoSink.debug << "LEVEL " << level << "\n";
204 table[level]->dump(infoSink);
209 // Functions have buried pointers to delete.
211 TFunction::~TFunction()
213 for (TParamList::iterator i = parameters.begin(); i != parameters.end(); ++i)
218 // Symbol table levels are a map of pointers to symbols that have to be deleted.
220 TSymbolTableLevel::~TSymbolTableLevel()
222 for (tLevel::iterator it = level.begin(); it != level.end(); ++it)
225 delete [] defaultPrecision;
229 // Change all function entries in the table with the non-mangled name
230 // to be related to the provided built-in operation.
232 void TSymbolTableLevel::relateToOperator(const char* name, TOperator op)
234 tLevel::const_iterator candidate = level.lower_bound(name);
235 while (candidate != level.end()) {
236 const TString& candidateName = (*candidate).first;
237 TString::size_type parenAt = candidateName.find_first_of('(');
238 if (parenAt != candidateName.npos && candidateName.compare(0, parenAt, name) == 0) {
239 TFunction* function = (*candidate).second->getAsFunction();
240 function->relateToOperator(op);
247 // Make all function overloads of the given name require an extension(s).
248 // Should only be used for a version/profile that actually needs the extension(s).
249 void TSymbolTableLevel::setFunctionExtensions(const char* name, int num, const char* const extensions[])
251 tLevel::const_iterator candidate = level.lower_bound(name);
252 while (candidate != level.end()) {
253 const TString& candidateName = (*candidate).first;
254 TString::size_type parenAt = candidateName.find_first_of('(');
255 if (parenAt != candidateName.npos && candidateName.compare(0, parenAt, name) == 0) {
256 TSymbol* symbol = candidate->second;
257 symbol->setExtensions(num, extensions);
265 // Make all symbols in this table level read only.
267 void TSymbolTableLevel::readOnly()
269 for (tLevel::iterator it = level.begin(); it != level.end(); ++it)
270 (*it).second->makeReadOnly();
274 // Copy a symbol, but the copy is writable; call readOnly() afterward if that's not desired.
276 TSymbol::TSymbol(const TSymbol& copyOf)
278 name = NewPoolTString(copyOf.name->c_str());
279 uniqueId = copyOf.uniqueId;
283 TVariable::TVariable(const TVariable& copyOf) : TSymbol(copyOf)
285 type.deepCopy(copyOf.type);
286 userType = copyOf.userType;
289 if (copyOf.numExtensions != 0)
290 setExtensions(copyOf.numExtensions, copyOf.extensions);
292 if (! copyOf.constArray.empty()) {
293 assert(! copyOf.type.isStruct());
294 TConstUnionArray newArray(copyOf.constArray, 0, copyOf.constArray.size());
295 constArray = newArray;
298 // don't support specialization-constant subtrees in cloned tables
299 constSubtree = nullptr;
302 TVariable* TVariable::clone() const
304 TVariable *variable = new TVariable(*this);
309 TFunction::TFunction(const TFunction& copyOf) : TSymbol(copyOf)
311 for (unsigned int i = 0; i < copyOf.parameters.size(); ++i) {
313 parameters.push_back(param);
314 parameters.back().copyParam(copyOf.parameters[i]);
319 if (copyOf.extensions != 0)
320 setExtensions(copyOf.numExtensions, copyOf.extensions);
321 returnType.deepCopy(copyOf.returnType);
322 mangledName = copyOf.mangledName;
324 defined = copyOf.defined;
325 prototyped = copyOf.prototyped;
326 implicitThis = copyOf.implicitThis;
327 illegalImplicitThis = copyOf.illegalImplicitThis;
328 defaultParamCount = copyOf.defaultParamCount;
331 TFunction* TFunction::clone() const
333 TFunction *function = new TFunction(*this);
338 TAnonMember* TAnonMember::clone() const
340 // Anonymous members of a given block should be cloned at a higher level,
341 // where they can all be assured to still end up pointing to a single
342 // copy of the original container.
348 TSymbolTableLevel* TSymbolTableLevel::clone() const
350 TSymbolTableLevel *symTableLevel = new TSymbolTableLevel();
351 symTableLevel->anonId = anonId;
352 symTableLevel->thisLevel = thisLevel;
353 std::vector<bool> containerCopied(anonId, false);
354 tLevel::const_iterator iter;
355 for (iter = level.begin(); iter != level.end(); ++iter) {
356 const TAnonMember* anon = iter->second->getAsAnonMember();
358 // Insert all the anonymous members of this same container at once,
359 // avoid inserting the other members in the future, once this has been done,
360 // allowing them to all be part of the same new container.
361 if (! containerCopied[anon->getAnonId()]) {
362 TVariable* container = anon->getAnonContainer().clone();
363 container->changeName(NewPoolTString(""));
364 // insert the whole container
365 symTableLevel->insert(*container, false);
366 containerCopied[anon->getAnonId()] = true;
369 symTableLevel->insert(*iter->second->clone(), false);
372 return symTableLevel;
375 void TSymbolTable::copyTable(const TSymbolTable& copyOf)
377 assert(adoptedLevels == copyOf.adoptedLevels);
379 uniqueId = copyOf.uniqueId;
380 noBuiltInRedeclarations = copyOf.noBuiltInRedeclarations;
381 separateNameSpaces = copyOf.separateNameSpaces;
382 for (unsigned int i = copyOf.adoptedLevels; i < copyOf.table.size(); ++i)
383 table.push_back(copyOf.table[i]->clone());
386 } // end namespace glslang