/// Initializize the symbol table
/// \param BuiltInStrings
/// Pointer to built in strings.
/// \param language
/// Shading language to initialize symbol table for
/// \param infoSink
/// Information sink (for errors/warnings)
/// \param symbolTables
/// Array of symbol tables (one for each language)
/// \param bUseGlobalSymbolTable
/// Whether to use the global symbol table or the per-language symbol table
/// \return
/// True if succesfully initialized, false otherwise
bool InitializeSymbolTable( TBuiltInStrings* BuiltInStrings, EShLanguage language, TInfoSink& infoSink,
TSymbolTable* symbolTables, bool bUseGlobalSymbolTable )
{
TIntermediate intermediate(infoSink);
TSymbolTable* symbolTable;
if ( bUseGlobalSymbolTable )
symbolTable = symbolTables;
else
symbolTable = &symbolTables[language];
TParseContext parseContext(*symbolTable, intermediate, language, infoSink);
GlobalParseContext = &parseContext;
setInitialState();
assert(symbolTable->isEmpty() || symbolTable->atSharedBuiltInLevel());
//
// Parse the built-ins. This should only happen once per
// language symbol table.
//
// Push the symbol table to give it an initial scope. This
// push should not have a corresponding pop, so that built-ins
// are preserved, and the test for an empty table fails.
//
symbolTable->push();
//Initialize the Preprocessor
int ret = InitPreprocessor();
if (ret)
{
infoSink.info.message(EPrefixInternalError, "Unable to intialize the Preprocessor");
return false;
}
for (TBuiltInStrings::iterator i = BuiltInStrings[parseContext.language].begin();
i != BuiltInStrings[parseContext.language].end();
++i)
{
const char* builtInShaders = (*i).c_str();
if (PaParseString(const_cast<char*>(builtInShaders), parseContext) != 0)
{
infoSink.info.message(EPrefixInternalError, "Unable to parse built-ins");
return false;
}
}
if ( !bUseGlobalSymbolTable )
{
IdentifyBuiltIns(parseContext.language, *symbolTable);
}
FinalizePreprocessor();
return true;
}
/// Initializize the symbol table
/// \param BuiltInStrings
/// Pointer to built in strings.
/// \param language
/// Shading language to initialize symbol table for
/// \param infoSink
/// Information sink (for errors/warnings)
/// \param symbolTables
/// Array of symbol tables (one for each language)
/// \param bUseGlobalSymbolTable
/// Whether to use the global symbol table or the per-language symbol table
/// \return
/// True if succesfully initialized, false otherwise
static bool InitializeSymbolTable( TBuiltInStrings* BuiltInStrings, EShLanguage language, TInfoSink& infoSink,
TSymbolTable* symbolTables, bool bUseGlobalSymbolTable )
{
TSymbolTable* symbolTable;
if ( bUseGlobalSymbolTable )
symbolTable = symbolTables;
else
symbolTable = &symbolTables[language];
//@TODO: for now, we use same global symbol table for all target language versions.
// This is wrong and will have to be changed at some point.
TParseContext parseContext(*symbolTable, language, ETargetVersionCount, 0, infoSink);
GlobalParseContext = &parseContext;
setInitialState();
assert(symbolTable->isEmpty() || symbolTable->atSharedBuiltInLevel());
//
// Parse the built-ins. This should only happen once per
// language symbol table.
//
// Push the symbol table to give it an initial scope. This
// push should not have a corresponding pop, so that built-ins
// are preserved, and the test for an empty table fails.
//
symbolTable->push();
for (TBuiltInStrings::iterator i = BuiltInStrings[parseContext.language].begin();
i != BuiltInStrings[parseContext.language].end();
++i)
{
const char* builtInShaders = (*i).c_str();
if (PaParseString(const_cast<char*>(builtInShaders), parseContext, NULL) != 0)
{
infoSink.info.message(EPrefixInternalError, "Unable to parse built-ins");
return false;
}
}
if ( !bUseGlobalSymbolTable )
{
IdentifyBuiltIns(parseContext.language, *symbolTable);
}
return true;
}
