void
TransformationSupport::getTransformationOptions ( SgNode* astNode, list<OptionDeclaration> & generatedList, string identifingTypeName )
{
// This function searches for variables of type ScopeBasedTransformationOptimization. Variables
// of type ScopeBasedTransformationOptimization are used to communicate optimizations from the
// application to the preprocessor. If called from a project or file object it traverses down to
// the global scope of the file and searches only the global scope, if called from and other
// location within the AST it searches the current scope and then traverses the parent nodes to
// find all enclosing scopes until in reaches the global scope. At each scope it searches for
// variables of type ScopeBasedTransformationOptimization.
// printf ("######################### START OF TRANSFORMATION OPTION QUERY ######################## \n");
ROSE_ASSERT (astNode != NULL);
ROSE_ASSERT (identifingTypeName.c_str() != NULL);
#if 0
printf ("In getTransformationOptions(): astNode->sage_class_name() = %s generatedList.size() = %d \n",
astNode->sage_class_name(),generatedList.size());
SgLocatedNode* locatedNode = isSgLocatedNode(astNode);
if (locatedNode != NULL)
{
printf (" locatedNode->get_file_info()->get_filename() = %s \n",locatedNode->get_file_info()->get_filename());
printf (" locatedNode->get_file_info()->get_line() = %d \n",locatedNode->get_file_info()->get_line());
}
#endif
switch (astNode->variant())
{
case ProjectTag:
{
SgProject* project = isSgProject(astNode);
ROSE_ASSERT (project != NULL);
//! Loop through all the files in the project and call the mainTransform function for each file
int i = 0;
for (i=0; i < project->numberOfFiles(); i++)
{
SgFile* file = &(project->get_file(i));
// printf ("Calling Query::traverse(SgFile,QueryFunctionType,QueryAssemblyFunctionType) \n");
getTransformationOptions ( file, generatedList, identifingTypeName );
}
break;
}
case SourceFileTag:
{
SgSourceFile* file = isSgSourceFile(astNode);
ROSE_ASSERT (file != NULL);
SgGlobal* globalScope = file->get_globalScope();
ROSE_ASSERT (globalScope != NULL);
ROSE_ASSERT (isSgGlobal(globalScope) != NULL);
getTransformationOptions ( globalScope, generatedList, identifingTypeName );
break;
}
// Global Scope
case GLOBAL_STMT:
{
SgGlobal* globalScope = isSgGlobal(astNode);
ROSE_ASSERT (globalScope != NULL);
SgSymbolTable* symbolTable = globalScope->get_symbol_table();
ROSE_ASSERT (symbolTable != NULL);
getTransformationOptions ( symbolTable, generatedList, identifingTypeName );
// printf ("Processed global scope, exiting .. \n");
// ROSE_ABORT();
break;
}
case SymbolTableTag:
{
// List the variable in each scope
// printf ("List all the variables in this symbol table! \n");
SgSymbolTable* symbolTable = isSgSymbolTable(astNode);
ROSE_ASSERT (symbolTable != NULL);
bool foundTransformationOptimizationSpecifier = false;
// printf ("Now print out the information in the symbol table for this scope: \n");
// symbolTable->print();
#if 0
// I don't know when a SymbolTable is given a name!
printf ("SymbolTable has a name = %s \n",
(symbolTable->get_no_name()) ? "NO: it has no name" : "YES: it does have a name");
if (!symbolTable->get_no_name())
printf ("SymbolTable name = %s \n",symbolTable->get_name().str());
else
ROSE_ASSERT (symbolTable->get_name().str() == NULL);
#endif
if (symbolTable->get_table() != NULL)
{
SgSymbolTable::hash_iterator i = symbolTable->get_table()->begin();
int counter = 0;
while (i != symbolTable->get_table()->end())
{
ROSE_ASSERT ( isSgSymbol( (*i).second ) != NULL );
// printf ("Initial info: number: %d pair.first (SgName) = %s pair.second (SgSymbol) sage_class_name() = %s \n",
// counter,(*i).first.str(),(*i).second->sage_class_name());
SgSymbol* symbol = isSgSymbol((*i).second);
ROSE_ASSERT ( symbol != NULL );
SgType* type = symbol->get_type();
ROSE_ASSERT ( type != NULL );
SgNamedType* namedType = isSgNamedType(type);
string typeName;
if (namedType != NULL)
{
SgName n = namedType->get_name();
typeName = namedType->get_name().str();
// char* nameString = namedType->get_name().str();
// printf ("Type is: (named type) = %s \n",nameString);
ROSE_ASSERT (identifingTypeName.c_str() != NULL);
// ROSE_ASSERT (typeName != NULL);
// printf ("In getTransformationOptions(): typeName = %s identifingTypeName = %s \n",typeName.c_str(),identifingTypeName.c_str());
// if ( (typeName != NULL) && ( typeName == identifingTypeName) )
if ( typeName == identifingTypeName )
{
// Now look at the parameter list to the constructor and save the
// values into the list.
// printf ("Now save the constructor arguments! \n");
SgVariableSymbol* variableSymbol = isSgVariableSymbol(symbol);
if ( variableSymbol != NULL )
{
SgInitializedName* initializedNameDeclaration = variableSymbol->get_declaration();
ROSE_ASSERT (initializedNameDeclaration != NULL);
SgDeclarationStatement* declarationStatement = initializedNameDeclaration->get_declaration();
ROSE_ASSERT (declarationStatement != NULL);
SgVariableDeclaration* variableDeclaration = isSgVariableDeclaration(declarationStatement);
ROSE_ASSERT (variableDeclaration != NULL);
getTransformationOptionsFromVariableDeclarationConstructorArguments(variableDeclaration,generatedList);
foundTransformationOptimizationSpecifier = true;
// printf ("Exiting after saving the constructor arguments! \n");
// ROSE_ABORT();
}
else
{
#if 0
printf ("Not a SgVariableSymbol: symbol->sage_class_name() = %s \n",
symbol->sage_class_name());
#endif
}
}
else
{
#if 0
printf ("typeName != identifingTypeName : symbol->sage_class_name() = %s \n",
symbol->sage_class_name());
#endif
#if 0
// I don't think this should ever be NULL (but it is sometimes)
if (typeName != NULL)
printf ("typeName == NULL \n");
#endif
}
}
else
{
typeName = (char *)type->sage_class_name();
}
// printf ("In while loop at the base: counter = %d \n",counter);
i++;
counter++;
}
}
else
{
// printf ("Pointer to symbol table is NULL \n");
}
// printf ("foundTransformationOptimizationSpecifier = %s \n",foundTransformationOptimizationSpecifier ? "true" : "false");
// SgSymbolTable objects don't have a parent node (specifically they lack a get_parent
// member function in the interface)!
break;
}
case BASIC_BLOCK_STMT:
{
// List the variable in each scope
// printf ("List all the variables in this scope! \n");
SgBasicBlock* basicBlock = isSgBasicBlock(astNode);
ROSE_ASSERT (basicBlock != NULL);
SgSymbolTable* symbolTable = basicBlock->get_symbol_table();
ROSE_ASSERT (symbolTable != NULL);
getTransformationOptions ( symbolTable, generatedList, identifingTypeName );
// Next go (fall through this case) to the default case so that we traverse the parent
// of the SgBasicBlock.
// break;
}
default:
// Most cases will be the default (this is by design)
// printf ("default in switch found in globalQueryGetListOperandStringFunction() (sage_class_name = %s) \n",astNode->sage_class_name());
// Need to recursively backtrack through the parents until we reach the SgGlobal (global scope)
SgStatement* statement = isSgStatement(astNode);
if (statement != NULL)
{
SgNode* parentNode = statement->get_parent();
ROSE_ASSERT (parentNode != NULL);
// printf ("parent = %p parentNode->sage_class_name() = %s \n",parentNode,parentNode->sage_class_name());
SgStatement* parentStatement = isSgStatement(parentNode);
if (parentStatement == NULL)
{
printf ("parentStatement == NULL: statement (%p) is a %s \n",statement,statement->sage_class_name());
printf ("parentStatement == NULL: statement->get_file_info()->get_filename() = %s \n",statement->get_file_info()->get_filename());
printf ("parentStatement == NULL: statement->get_file_info()->get_line() = %d \n",statement->get_file_info()->get_line());
}
ROSE_ASSERT (parentStatement != NULL);
// Call this function recursively (directly rather than through the query mechanism)
getTransformationOptions ( parentStatement, generatedList, identifingTypeName );
}
else
{
// printf ("astNode is not a SgStatement! \n");
}
break;
}
#if 0
printf ("At BASE of getTransformationOptions(): astNode->sage_class_name() = %s size of generatedList = %d \n",
astNode->sage_class_name(),generatedList.size());
#endif
// printf ("######################### END OF TRANSFORMATION OPTION QUERY ######################## \n");
}
void
FixupAstSymbolTables::visit ( SgNode* node )
{
// DQ (6/27/2005): Output the local symbol table from each scope.
// printf ("node = %s \n",node->sage_class_name());
SgScopeStatement* scope = isSgScopeStatement(node);
if (scope != NULL)
{
#if 0
printf ("AST Fixup: Fixup Symbol Table for %p = %s at: \n",scope,scope->class_name().c_str());
#endif
SgSymbolTable* symbolTable = scope->get_symbol_table();
if (symbolTable == NULL)
{
#if 0
printf ("AST Fixup: Fixup Symbol Table for %p = %s at: \n",scope,scope->class_name().c_str());
scope->get_file_info()->display("Symbol Table Location");
#endif
SgSymbolTable* tempSymbolTable = new SgSymbolTable();
ROSE_ASSERT(tempSymbolTable != NULL);
// name this table as compiler generated! The name is a static member used to store
// state for the next_symbol() functions. It is meaningless to set these.
// tempSymbolTable->set_name("compiler-generated symbol table");
scope->set_symbol_table(tempSymbolTable);
// reset the symbolTable using the get_symbol_table() member function
symbolTable = scope->get_symbol_table();
ROSE_ASSERT(symbolTable != NULL);
// DQ (2/16/2006): Set this parent directly (now tested)
symbolTable->set_parent(scope);
ROSE_ASSERT(symbolTable->get_parent() != NULL);
}
ROSE_ASSERT(symbolTable != NULL);
if (symbolTable->get_parent() == NULL)
{
printf ("Warning: Fixing up symbolTable, calling symbolTable->set_parent() (parent not previously set) \n");
symbolTable->set_parent(scope);
}
ROSE_ASSERT(symbolTable->get_parent() != NULL);
// Make sure that the internal hash table used in the symbol table is also present!
if (symbolTable->get_table() == NULL)
{
// DQ (6/27/2005): There are a lot of these built, perhaps more than we really need!
#if 0
printf ("AST Fixup: Building internal Symbol Table hash table (rose_hash_multimap) for %p = %s at: \n",
scope,scope->sage_class_name());
scope->get_file_info()->display("Symbol Table Location");
#endif
rose_hash_multimap* internalHashTable = new rose_hash_multimap();
ROSE_ASSERT(internalHashTable != NULL);
symbolTable->set_table(internalHashTable);
}
ROSE_ASSERT(symbolTable->get_table() != NULL);
SgSymbolTable::BaseHashType* internalTable = symbolTable->get_table();
ROSE_ASSERT(internalTable != NULL);
// DQ (6/23/2011): Note: Declarations that reference types that have not been seen yet may be placed into the
// wronge scope, then later when we see the correct scope we have a symbol in two or more symbol tables. The
// code below detects and fixes this problem.
// DQ (6/16/2011): List of symbols we need to remove from symbol tables where they are multibily represented.
std::vector<SgSymbol*> listOfSymbolsToRemove;
// DQ (6/12/2011): Fixup symbol table by removing symbols that are not associated with a declaration in the current scope.
int idx = 0;
SgSymbolTable::hash_iterator i = internalTable->begin();
while (i != internalTable->end())
{
// DQ: removed SgName casting operator to char*
// cout << "[" << idx << "] " << (*i).first.str();
ROSE_ASSERT ( (*i).first.str() != NULL );
ROSE_ASSERT ( isSgSymbol( (*i).second ) != NULL );
// printf ("Symbol number: %d (pair.first (SgName) = %s) pair.second (SgSymbol) sage_class_name() = %s \n",
// idx,(*i).first.str(),(*i).second->sage_class_name());
SgSymbol* symbol = isSgSymbol((*i).second);
ROSE_ASSERT ( symbol != NULL );
// We have to look at each type of symbol separately! This is because there is no virtual function,
// the reason for this is that each get_declaration() function returns a different type!
// ROSE_ASSERT ( symbol->get_declaration() != NULL );
switch(symbol->variantT())
{
case V_SgClassSymbol:
{
SgClassSymbol* classSymbol = isSgClassSymbol(symbol);
ROSE_ASSERT(classSymbol != NULL);
ROSE_ASSERT(classSymbol->get_declaration() != NULL);
SgDeclarationStatement* declarationToFindInScope = NULL;
// Search for the declaration in the associated scope.
declarationToFindInScope = classSymbol->get_declaration();
ROSE_ASSERT(declarationToFindInScope != NULL);
SgClassDeclaration* classDeclaration = isSgClassDeclaration(declarationToFindInScope);
ROSE_ASSERT(classDeclaration != NULL);
SgName name = classDeclaration->get_name();
// SgType* declarationType = declarationToFindInScope->get_type();
SgType* declarationType = classDeclaration->get_type();
ROSE_ASSERT(declarationType != NULL);
if (declarationToFindInScope->get_definingDeclaration() != NULL)
{
declarationToFindInScope = declarationToFindInScope->get_definingDeclaration();
SgClassDeclaration* definingClassDeclaration = isSgClassDeclaration(declarationToFindInScope);
ROSE_ASSERT(definingClassDeclaration != NULL);
// SgType* definingDeclarationType = declarationToFindInScope->get_type();
SgType* definingDeclarationType = definingClassDeclaration->get_type();
ROSE_ASSERT(definingDeclarationType != NULL);
// DQ (6/22/2011): This assertion fails for CompileTests/copyAST_tests/copytest2007_24.C
// A simple rule that all declarations should follow (now that we have proper global type tables).
// ROSE_ASSERT(definingDeclarationType == declarationType);
if (definingDeclarationType != declarationType)
{
printf ("In fixupSymbolTables.C: Note that definingDeclarationType != declarationType \n");
}
}
SgNamedType* namedType = isSgNamedType(declarationType);
ROSE_ASSERT(namedType != NULL);
SgDeclarationStatement* declarationAssociatedToType = namedType->get_declaration();
ROSE_ASSERT(declarationAssociatedToType != NULL);
#if 0
printf ("Found a symbol without a matching declaration in the current scope (declList): declarationToFindInScope = %p = %s \n",declarationToFindInScope,declarationToFindInScope->class_name().c_str());
printf ("Symbol number: %d (pair.first (SgName) = %s) pair.second (SgSymbol) class_name() = %s \n",idx,(*i).first.str(),(*i).second->class_name().c_str());
#endif
SgScopeStatement* scopeOfDeclarationToFindInScope = declarationToFindInScope->get_scope();
SgScopeStatement* scopeOfDeclarationAssociatedWithType = declarationAssociatedToType->get_scope();
#if 0
printf ("declarationToFindInScope = %p declarationToFindInScope->get_scope() = %p = %s \n",declarationToFindInScope,declarationToFindInScope->get_scope(),declarationToFindInScope->get_scope()->class_name().c_str());
printf ("declarationAssociatedToType = %p declarationAssociatedToType->get_scope() = %p = %s \n",declarationAssociatedToType,declarationAssociatedToType->get_scope(),declarationAssociatedToType->get_scope()->class_name().c_str());
#endif
if (scopeOfDeclarationToFindInScope != scopeOfDeclarationAssociatedWithType)
{
// DQ (6/12/2011): Houston, we have a problem! The trick is to fix it...
// A symbol has been placed into a scope when we could not be certain which scope it should be placed.
// We have a default of placing such symbols into the global scope, but it might be better to just have
// a special scope where such symbols could be placed so that we could have them separate from the global
// scope and then fix them up more clearly.
// Note that test2011_80.C still fails but the AST is at least correct (I think).
SgGlobal* scopeOfDeclarationToFindInScope_GlobalScope = isSgGlobal(scopeOfDeclarationToFindInScope);
// SgGlobal* scopeOfDeclarationAssociatedWithType_GlobalScope = isSgGlobal(scopeOfDeclarationAssociatedWithType);
if (scopeOfDeclarationToFindInScope_GlobalScope != NULL)
{
// In general which ever scope is the global scope is where the error is...???
// This is because when we don't know where to put a symbol (e.g. from a declaration of a pointer) we put it into global scope.
// There is even an agrument that this is correct as a default for C/C++, but only if it must exist (see test2011_80.C).
// Remove the symbol from the symbol table of the global scope.
printf ("Remove the associated symbol in the current symbol table \n");
// DQ (6/22/2011): This assertion fails for CompileTests/copyAST_tests/copytest2007_24.C
// ROSE_ASSERT (declarationToFindInScope->get_scope() == declarationAssociatedToType->get_scope());
if (declarationToFindInScope->get_scope() != declarationAssociatedToType->get_scope())
printf ("In fixupSymbolTables.C: Note that declarationToFindInScope->get_scope() != declarationAssociatedToType->get_scope() \n");
}
else
{
listOfSymbolsToRemove.push_back(classSymbol);
}
}
// ROSE_ASSERT (declarationToFindInScope->get_scope() == declarationAssociatedToType->get_scope());
break;
}
default:
{
// It night be there are are no other types of symbols to consider...
// printf ("Ignoring non SgClassSymbols (fixupSymbolTables.C) symbol = %s \n",symbol->class_name().c_str());
// ROSE_ASSERT(false);
}
}
// Increment iterator!
i++;
// Increment counter!
idx++;
}
// DQ (6/18/2011): Now that we are through with the symbol table we can support removal of any
// identified problematic symbol without worrying about STL iterator invalidation.
for (size_t j = 0; j < listOfSymbolsToRemove.size(); j++)
{
// Remove these symbols.
SgSymbol* removeSymbol = listOfSymbolsToRemove[j];
ROSE_ASSERT(removeSymbol != NULL);
SgSymbolTable* associatedSymbolTable = isSgSymbolTable(removeSymbol->get_parent());
ROSE_ASSERT(associatedSymbolTable != NULL);
ROSE_ASSERT(associatedSymbolTable == symbolTable);
associatedSymbolTable->remove(removeSymbol);
printf ("Redundant symbol removed...from symbol table \n");
// ROSE_ASSERT(false);
}
#if 0
// debugging
symbolTable->print("In FixupAstSymbolTables::visit(): printing out the symbol tables");
#endif
}
}
// DQ (8/23/2011): Made this a static function so that I could call it from the Java support.
void
FixupAstSymbolTablesToSupportAliasedSymbols::injectSymbolsFromReferencedScopeIntoCurrentScope ( SgScopeStatement* referencedScope, SgScopeStatement* currentScope, SgNode* causalNode, SgAccessModifier::access_modifier_enum accessLevel )
{
ROSE_ASSERT(referencedScope != NULL);
ROSE_ASSERT(currentScope != NULL);
#if ALIAS_SYMBOL_DEBUGGING || 0
printf ("In injectSymbolsFromReferencedScopeIntoCurrentScope(): referencedScope = %p = %s currentScope = %p = %s accessLevel = %d \n",referencedScope,referencedScope->class_name().c_str(),currentScope,currentScope->class_name().c_str(),accessLevel);
#endif
SgSymbolTable* symbolTable = referencedScope->get_symbol_table();
ROSE_ASSERT(symbolTable != NULL);
#if 0
printf ("AST Fixup: Building Symbol Table for %p = %s at: \n",scope,scope->sage_class_name());
referencedScope->get_file_info()->display("Symbol Table Location");
#endif
SgClassDefinition* classDefinition = isSgClassDefinition(referencedScope);
if (classDefinition != NULL)
{
// If this is a class definition, then we need to make sure that we only for alias symbols for those declarations.
#if ALIAS_SYMBOL_DEBUGGING
printf ("Injection of symbols from a class definition needs to respect access priviledge (private, protected, public) declarations \n");
#endif
}
SgSymbolTable::BaseHashType* internalTable = symbolTable->get_table();
ROSE_ASSERT(internalTable != NULL);
int counter = 0;
SgSymbolTable::hash_iterator i = internalTable->begin();
while (i != internalTable->end())
{
// DQ: removed SgName casting operator to char*
// cout << "[" << idx << "] " << (*i).first.str();
ROSE_ASSERT ( (*i).first.str() != NULL );
ROSE_ASSERT ( isSgSymbol( (*i).second ) != NULL );
#if ALIAS_SYMBOL_DEBUGGING
printf ("Symbol number: %d (pair.first (SgName) = %s) pair.second (SgSymbol) class_name() = %s \n",counter,(*i).first.str(),(*i).second->class_name().c_str());
#endif
SgName name = (*i).first;
SgSymbol* symbol = (*i).second;
ROSE_ASSERT ( symbol != NULL );
// Make sure that this is not a SgLabelSymbol, I think these should not be aliased
// (if only because I don't think that C++ support name qualification for labels).
ROSE_ASSERT ( isSgLabelSymbol(symbol) == NULL );
// DQ (6/22/2011): For now skip the handling of alias symbol from other scopes.
// ROSE_ASSERT(isSgAliasSymbol(symbol) == NULL);
if (isSgAliasSymbol(symbol) != NULL)
{
#if ALIAS_SYMBOL_DEBUGGING
printf ("WARNING: Not clear if we want to nest SgAliasSymbol inside of SgAliasSymbol \n");
#endif
// DQ (9/22/2012): We need to avoid building chains of SgAliasSymbol (to simplify the representation in the AST).
while (isSgAliasSymbol(symbol) != NULL)
{
#if ALIAS_SYMBOL_DEBUGGING
printf (" --- Iterating to root of alias: symbol = %p = %s \n",symbol,symbol->class_name().c_str());
#endif
symbol = isSgAliasSymbol(symbol)->get_alias();
ROSE_ASSERT(symbol != NULL);
}
#if ALIAS_SYMBOL_DEBUGGING
printf ("Resolved aliased symbol to root symbol: symbol = %p = %s \n",symbol,symbol->class_name().c_str());
#endif
}
SgNode* symbolBasis = symbol->get_symbol_basis();
ROSE_ASSERT(symbolBasis != NULL);
#if ALIAS_SYMBOL_DEBUGGING
printf ("symbolBasis = %p = %s \n",symbolBasis,symbolBasis->class_name().c_str());
#endif
// SgDeclarationStatement* declarationFromSymbol = symbol->get_declaration();
SgDeclarationStatement* declarationFromSymbol = isSgDeclarationStatement(symbolBasis);
SgAccessModifier::access_modifier_enum declarationAccessLevel = SgAccessModifier::e_unknown;
// ROSE_ASSERT(declarationFromSymbol != NULL);
if (declarationFromSymbol != NULL)
{
// DQ (6/22/2011): Can I, or should I, do relational operations on enum values (note that the values are designed to allow this).
declarationAccessLevel = declarationFromSymbol->get_declarationModifier().get_accessModifier().get_modifier();
}
else
{
SgInitializedName* initializedNameFromSymbol = isSgInitializedName(symbolBasis);
ROSE_ASSERT(initializedNameFromSymbol != NULL);
// DQ (9/8/2014): This fails for test2013_234, 235, 240, 241, 242, 246.C.
// ROSE_ASSERT(initializedNameFromSymbol->get_declptr() != NULL);
// declarationAccessLevel = initializedNameFromSymbol->get_declptr()->get_declarationModifier().get_accessModifier().get_modifier();
if (initializedNameFromSymbol->get_declptr() != NULL)
{
declarationAccessLevel = initializedNameFromSymbol->get_declptr()->get_declarationModifier().get_accessModifier().get_modifier();
}
else
{
mprintf ("WARNING: In injectSymbolsFromReferencedScopeIntoCurrentScope(): initializedNameFromSymbol->get_declptr() == NULL: initializedNameFromSymbol->get_name() = %s \n",initializedNameFromSymbol->get_name().str());
}
}
#if ALIAS_SYMBOL_DEBUGGING || 0
printf ("declarationAccessLevel = %d accessLevel = %d \n",declarationAccessLevel,accessLevel);
#endif
#if 0
// DQ (12/23/2015): Is this only supporting the SgBaseClass IR nodes? No, another example is the case of a SgUsingDirectiveStatement.
ROSE_ASSERT(causalNode != NULL);
if (isSgBaseClass(causalNode) == NULL)
{
printf ("ERROR: This is not a SgBaseClass: causalNode = %p = %s \n",causalNode,causalNode->class_name().c_str());
ROSE_ASSERT(false);
}
#endif
// DQ (12/23/2015): See test2015_140.C for where even private base classes will require representations
// of it's symbols in the derived class (to support correct name qualification).
// if (declarationAccessLevel >= accessLevel)
if ( (declarationAccessLevel >= accessLevel) || isSgBaseClass(causalNode) != NULL)
{
// This declaration is visible, so build an alias.
// DQ (7/24/2011): Need to make sure that the symbol is not already present in the symbol table
// (else injection would be redundant. This is a likely key to the problem we are having with
// symbol table explosions for some codes. This should be refactored to a member function of
// the symbol table support.
// Note that this change improves the performance from 15 minutes to 5 seconds for the outlining example.
bool alreadyExists = currentScope->symbol_exists(name);
if (alreadyExists == true)
{
// Just because the names match is not strong enough.
// SgSymbol* symbol currentScope->symbol_exists(name);
switch (symbol->variantT())
{
case V_SgAliasSymbol:
{
// not clear what to do here...
// I think we need more symbol table support for detecting matching symbols.
// I think we also need more alias symbol specific query support.
break;
}
// DQ (11/10/2014): Added support for templated typedef symbols.
case V_SgTemplateTypedefSymbol:
case V_SgEnumSymbol:
case V_SgVariableSymbol:
case V_SgTemplateClassSymbol:
case V_SgClassSymbol:
case V_SgTemplateFunctionSymbol:
case V_SgTemplateMemberFunctionSymbol:
case V_SgFunctionSymbol:
case V_SgMemberFunctionSymbol:
case V_SgTypedefSymbol:
case V_SgEnumFieldSymbol:
case V_SgNamespaceSymbol:
case V_SgTemplateSymbol:
case V_SgLabelSymbol:
{
// Liao, 10/31/2012.
// Using lookup_function_symbol () etc. is not good enough since it returns the first match only.
// There might be multiple hits. We have to go through them all instead of checking only the first hit
alreadyExists = false; // reset to be false
// using less expensive equal_range(), which can be O(logN) instead of O(N)
// This matters since this function is called inside another loop with complexity of O(N) already.
rose_hash_multimap * internal_table = currentScope->get_symbol_table()->get_table();
ROSE_ASSERT (internal_table != NULL);
std::pair<rose_hash_multimap::iterator, rose_hash_multimap::iterator> range = internal_table ->equal_range (name);
for (rose_hash_multimap::iterator i = range.first; i != range.second; ++i)
{
SgSymbol * orig_current_symbol = i->second;
ROSE_ASSERT (orig_current_symbol != NULL);
// strip off alias symbols
SgSymbol * non_alias_symbol = orig_current_symbol;
while (isSgAliasSymbol(non_alias_symbol))
{
non_alias_symbol = isSgAliasSymbol(non_alias_symbol) ->get_alias();
ROSE_ASSERT (non_alias_symbol != NULL);
}
SgNode* associatedDeclaration = i->second->get_symbol_basis();
assert(associatedDeclaration != NULL);
// same basis and same symbol type
// The assumption is that no two symbols can share the same basis declaration TODO double check this!
if (associatedDeclaration == symbolBasis && (non_alias_symbol->variantT() == symbol->variantT()))
{
alreadyExists = true;
break;
}
} // end for
break;
}
#if 0 // uniform handling by code above now
case V_SgEnumSymbol:
{
// alreadyExists = (currentScope->lookup_enum_symbol(name) != NULL);
SgEnumSymbol* tmpSymbol = currentScope->lookup_enum_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
case V_SgVariableSymbol:
{
// alreadyExists = (currentScope->lookup_variable_symbol(name) != NULL);
SgVariableSymbol* tmpSymbol = currentScope->lookup_variable_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
// DQ (2/12/2012): Not clear if this is the best way to add this support.
case V_SgTemplateClassSymbol:
case V_SgClassSymbol:
{
// alreadyExists = (currentScope->lookup_class_symbol(name) != NULL);
SgClassSymbol* tmpSymbol = currentScope->lookup_class_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
#if 0
// DQ (2/12/2012): Added support for SgTemplateFunctionSymbol.
case V_SgTemplateFunctionSymbol:
{
SgTemplateFunctionSymbol* tmpSymbol = currentScope->lookup_template_function_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
// DQ (2/12/2012): Added support for SgTemplateMemberFunctionSymbol.
case V_SgTemplateMemberFunctionSymbol:
{
SgTemplateMemberFunctionSymbol* tmpSymbol = currentScope->lookup_template_member_function_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
#else
// DQ (2/12/2012): Not clear if this is the best way to add this support.
case V_SgTemplateFunctionSymbol:
case V_SgTemplateMemberFunctionSymbol:
#endif
case V_SgFunctionSymbol:
case V_SgMemberFunctionSymbol:
{
// alreadyExists = (currentScope->lookup_function_symbol(name) != NULL);
SgFunctionSymbol* tmpSymbol = currentScope->lookup_function_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
case V_SgTypedefSymbol:
{
// alreadyExists = (currentScope->lookup_typedef_symbol(name) != NULL);
SgTypedefSymbol* tmpSymbol = currentScope->lookup_typedef_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
case V_SgEnumFieldSymbol:
{
// alreadyExists = (currentScope->lookup_enum_field_symbol(name) != NULL);
SgEnumFieldSymbol* tmpSymbol = currentScope->lookup_enum_field_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
case V_SgNamespaceSymbol:
{
// alreadyExists = (currentScope->lookup_namespace_symbol(name) != NULL);
SgNamespaceSymbol* tmpSymbol = currentScope->lookup_namespace_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
case V_SgTemplateSymbol:
{
// alreadyExists = (currentScope->lookup_template_symbol(name) != NULL);
SgTemplateSymbol* tmpSymbol = currentScope->lookup_template_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
case V_SgLabelSymbol:
{
// alreadyExists = (currentScope->lookup_label_symbol(name) != NULL);
SgLabelSymbol* tmpSymbol = currentScope->lookup_label_symbol(name);
if (tmpSymbol != NULL)
{
SgNode* tmpSymbolBasis = tmpSymbol->get_symbol_basis();
ROSE_ASSERT(tmpSymbolBasis != NULL);
alreadyExists = (tmpSymbolBasis == symbolBasis);
}
break;
}
#endif
default:
printf ("Error: default reached in switch symbol = %p = %s \n",symbol,symbol->class_name().c_str());
ROSE_ASSERT(false);
break;
}
}
if ( alreadyExists == false)
{
#if 0
printf ("Building a SgAliasSymbol \n");
#endif
// DQ: The parameter to a SgAliasSymbol is a SgSymbol (but should not be another SgAliasSymbol).
SgAliasSymbol* aliasSymbol = new SgAliasSymbol(symbol);
ROSE_ASSERT(aliasSymbol != NULL);
// DQ (7/12/2014): Added support to trace back the SgAliasSymbol to the declarations that caused it to be added.
ROSE_ASSERT(causalNode != NULL);
aliasSymbol->get_causal_nodes().push_back(causalNode);
#if ALIAS_SYMBOL_DEBUGGING
// printf ("In injectSymbolsFromReferencedScopeIntoCurrentScope(): Adding symbol to new scope as a SgAliasSymbol = %p causalNode = %p = %s \n",aliasSymbol,causalNode,causalNode->class_name().c_str());
printf ("In injectSymbolsFromReferencedScopeIntoCurrentScope(): Adding symbol to new scope (currentScope = %p = %s) as a SgAliasSymbol = %p causalNode = %p = %s \n",currentScope,currentScope->class_name().c_str(),aliasSymbol,causalNode,causalNode->class_name().c_str());
#endif
// Use the current name and the alias to the symbol
currentScope->insert_symbol(name, aliasSymbol);
#if ALIAS_SYMBOL_DEBUGGING
printf ("In injectSymbolsFromReferencedScopeIntoCurrentScope(): DONE: Adding symbol to new scope (currentScope = %p = %s) as a SgAliasSymbol = %p causalNode = %p = %s \n",currentScope,currentScope->class_name().c_str(),aliasSymbol,causalNode,causalNode->class_name().c_str());
#endif
}
}
else
{
#if ALIAS_SYMBOL_DEBUGGING
printf ("NO SgAliasSymbol ADDED (wrong permissions): declarationFromSymbol = %p \n",declarationFromSymbol);
#endif
}
#if 0
// Older version of code...
// SgAliasSymbol* aliasSymbol = new SgAliasSymbol (SgSymbol *alias=NULL, bool isRenamed=false, SgName new_name="")
SgAliasSymbol* aliasSymbol = new SgAliasSymbol (symbol);
// Use the current name and the alias to the symbol
currentScope->insert_symbol(name, aliasSymbol);
#endif
// Increment iterator and counter
i++;
counter++;
}
#if 0
// debugging
symbolTable->print("In injectSymbolsFromReferencedScopeIntoCurrentScope(): printing out the symbol tables");
#endif
#if ALIAS_SYMBOL_DEBUGGING
printf ("In injectSymbolsFromReferencedScopeIntoCurrentScope(): referencedScope = %p = %s currentScope = %p = %s accessLevel = %d \n",referencedScope,referencedScope->class_name().c_str(),currentScope,currentScope->class_name().c_str(),accessLevel);
#endif
}