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Create a base GLSL front-end from the 3Dlabs glslang front-end from 20-Sep-2005.

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19944 e7fa87d3-cd2b-0410-9028-fcbf551c1848
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John Kessenich 2012-12-12 21:15:54 +00:00
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glslang/MachineIndependent/SymbolTable.cpp Normal file
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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
//
// Symbol table for parsing. Most functionaliy and main ideas
// are documented in the header file.
//
#include "SymbolTable.h"
//
// TType helper function needs a place to live.
//
//
// Recursively generate mangled names.
//
void TType::buildMangledName(TString& mangledName)
{
if (isMatrix())
mangledName += 'm';
else if (isVector())
mangledName += 'v';
switch (type) {
case EbtFloat: mangledName += 'f'; break;
case EbtInt: mangledName += 'i'; break;
case EbtBool: mangledName += 'b'; break;
case EbtSampler1D: mangledName += "s1"; break;
case EbtSampler2D: mangledName += "s2"; break;
case EbtSampler3D: mangledName += "s3"; break;
case EbtSamplerCube: mangledName += "sC"; break;
case EbtSampler1DShadow: mangledName += "sS1"; break;
case EbtSampler2DShadow: mangledName += "sS2"; break;
case EbtSamplerRect: mangledName += "sR2"; break; // ARB_texture_rectangle
case EbtSamplerRectShadow: mangledName += "sSR2"; break; // ARB_texture_rectangle
case EbtStruct:
mangledName += "struct-";
if (typeName)
mangledName += *typeName;
{// support MSVC++6.0
for (unsigned int i = 0; i < structure->size(); ++i) {
mangledName += '-';
(*structure)[i].type->buildMangledName(mangledName);
}
}
default:
break;
}
mangledName += static_cast<char>('0' + getNominalSize());
if (isArray()) {
char buf[10];
sprintf(buf, "%d", arraySize);
mangledName += '[';
mangledName += buf;
mangledName += ']';
}
}
int TType::getStructSize() const
{
if (!getStruct()) {
assert(false && "Not a struct");
return 0;
}
if (structureSize == 0)
for (TTypeList::iterator tl = getStruct()->begin(); tl != getStruct()->end(); tl++)
structureSize += ((*tl).type)->getObjectSize();
return structureSize;
}
//
// Dump functions.
//
void TVariable::dump(TInfoSink& infoSink) const
{
infoSink.debug << getName().c_str() << ": " << type.getQualifierString() << " " << type.getBasicString();
if (type.isArray()) {
infoSink.debug << "[0]";
}
infoSink.debug << "\n";
}
void TFunction::dump(TInfoSink &infoSink) const
{
infoSink.debug << getName().c_str() << ": " << returnType.getBasicString() << " " << getMangledName().c_str() << "\n";
}
void TSymbolTableLevel::dump(TInfoSink &infoSink) const
{
tLevel::const_iterator it;
for (it = level.begin(); it != level.end(); ++it)
(*it).second->dump(infoSink);
}
void TSymbolTable::dump(TInfoSink &infoSink) const
{
for (int level = currentLevel(); level >= 0; --level) {
infoSink.debug << "LEVEL " << level << "\n";
table[level]->dump(infoSink);
}
}
//
// Functions have buried pointers to delete.
//
TFunction::~TFunction()
{
for (TParamList::iterator i = parameters.begin(); i != parameters.end(); ++i)
delete (*i).type;
}
//
// Symbol table levels are a map of pointers to symbols that have to be deleted.
//
TSymbolTableLevel::~TSymbolTableLevel()
{
for (tLevel::iterator it = level.begin(); it != level.end(); ++it)
delete (*it).second;
}
//
// Change all function entries in the table with the non-mangled name
// to be related to the provided built-in operation. This is a low
// performance operation, and only intended for symbol tables that
// live across a large number of compiles.
//
void TSymbolTableLevel::relateToOperator(const char* name, TOperator op)
{
tLevel::iterator it;
for (it = level.begin(); it != level.end(); ++it) {
if ((*it).second->isFunction()) {
TFunction* function = static_cast<TFunction*>((*it).second);
if (function->getName() == name)
function->relateToOperator(op);
}
}
}
TSymbol::TSymbol(const TSymbol& copyOf)
{
name = NewPoolTString(copyOf.name->c_str());
uniqueId = copyOf.uniqueId;
}
TVariable::TVariable(const TVariable& copyOf, TStructureMap& remapper) : TSymbol(copyOf)
{
type.copyType(copyOf.type, remapper);
userType = copyOf.userType;
// for builtIn symbol table level, unionArray and arrayInformation pointers should be NULL
assert(copyOf.arrayInformationType == 0);
arrayInformationType = 0;
if (copyOf.unionArray) {
assert(!copyOf.type.getStruct());
assert(copyOf.type.getObjectSize() == 1);
unionArray = new constUnion[1];
unionArray[0] = copyOf.unionArray[0];
} else
unionArray = 0;
}
TVariable* TVariable::clone(TStructureMap& remapper)
{
TVariable *variable = new TVariable(*this, remapper);
return variable;
}
TFunction::TFunction(const TFunction& copyOf, TStructureMap& remapper) : TSymbol(copyOf)
{
for (unsigned int i = 0; i < copyOf.parameters.size(); ++i) {
TParameter param;
parameters.push_back(param);
parameters.back().copyParam(copyOf.parameters[i], remapper);
}
returnType.copyType(copyOf.returnType, remapper);
mangledName = copyOf.mangledName;
op = copyOf.op;
defined = copyOf.defined;
}
TFunction* TFunction::clone(TStructureMap& remapper)
{
TFunction *function = new TFunction(*this, remapper);
return function;
}
TSymbolTableLevel* TSymbolTableLevel::clone(TStructureMap& remapper)
{
TSymbolTableLevel *symTableLevel = new TSymbolTableLevel();
tLevel::iterator iter;
for (iter = level.begin(); iter != level.end(); ++iter) {
symTableLevel->insert(*iter->second->clone(remapper));
}
return symTableLevel;
}
void TSymbolTable::copyTable(const TSymbolTable& copyOf)
{
TStructureMap remapper;
uniqueId = copyOf.uniqueId;
for (unsigned int i = 0; i < copyOf.table.size(); ++i) {
table.push_back(copyOf.table[i]->clone(remapper));
}
}