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SgSymbol Class Referenceabstract

This class represents the concept of a name within the compiler. More...

#include <Cxx_Grammar.h>

Inheritance diagram for SgSymbol:
Collaboration diagram for SgSymbol:

Public Types

enum  { static_variant = V_SgSymbol }
 static variant value More...
 
typedef SgNode base_node_type
 
- Public Types inherited from SgNode
enum  { static_variant = V_SgNode }
 static variant value More...
 

Public Member Functions

virtual SgName get_name () const =0
 Access function for getting name from declarations or types internally. More...
 
virtual SgTypeget_type () const =0
 This function returns the type associated with the named entity. More...
 
virtual SgNodeget_symbol_basis () const
 
virtual SgScopeStatementget_scope () const
 
SgName get_mangled_name () const
 
SgDeclarationStatementget_declaration () const
 
virtual void addNewAttribute (std::string s, AstAttribute *a)
 Add a new attribute represented by the named string. More...
 
virtual AstAttributegetAttribute (std::string s) const
 Returns attribute of name 's'. More...
 
virtual void updateAttribute (std::string s, AstAttribute *a)
 Replace existing attribute of name 's' with new AstAttribute. More...
 
virtual void setAttribute (std::string s, AstAttribute *a)
 This is a wrapper function with the following semantics: if no attribute of name 's' exists then addNewAttribute(s,a); is called, otherwise updateAttribute(s,a); is called. More...
 
virtual void removeAttribute (std::string s)
 Remove attribute of name 's' if present. More...
 
virtual bool attributeExists (std::string s) const
 Tests if attribute of name 's' is present. More...
 
virtual int numberOfAttributes () const
 Returns the number of attributes on this IR node. More...
 
virtual std::string class_name () const
 Copies AST (whole subtree, depending on the SgCopyHelp class. More...
 
virtual VariantT variantT () const
 returns new style SageIII enum values More...
 
void * operator new (size_t size)
 returns pointer to newly allocated IR node More...
 
void operator delete (void *pointer, size_t size)
 deallocated memory for IR node (returns memory to memory pool for reuse) More...
 
void operator delete (void *pointer)
 
virtual std::vector< SgNode * > get_traversalSuccessorContainer ()
 FOR INTERNAL USE within ROSE traverals mechanism only. More...
 
virtual std::vector< std::string > get_traversalSuccessorNamesContainer ()
 FOR INTERNAL USE within ROSE traverals mechanism only. More...
 
virtual size_t get_numberOfTraversalSuccessors ()
 
virtual SgNodeget_traversalSuccessorByIndex (size_t idx)
 
virtual size_t get_childIndex (SgNode *child)
 
virtual RTIReturnType roseRTI ()
 FOR INTERNAL USE Access to Runtime Type Information (RTI) for this IR nodes. More...
 
virtual const char * sage_class_name () const ROSE_DEPRECATED_FUNCTION
 
void executeVisitorMemberFunction (ROSE_VisitorPattern &visitor)
 FOR INTERNAL USE Support for visitor pattern. More...
 
virtual void accept (ROSE_VisitorPattern &visitor)
 DXN (08/09/2010): support for the classic visitor pattern done in GoF. More...
 
virtual bool isInMemoryPool ()
 FOR INTERNAL USE This is used in internal tests to verify that all IR nodes are allocated from the heap. More...
 
virtual void checkDataMemberPointersIfInMemoryPool ()
 FOR INTERNAL USE This is used in internal tests to verify that all IR nodes are allocated from the heap. More...
 
virtual std::vector< std::pair
< SgNode *, std::string > > 
returnDataMemberPointers () const
 FOR INTERNAL USE Returns STL vector of pairs of SgNode* and strings for use in AST tools More...
 
virtual void processDataMemberReferenceToPointers (ReferenceToPointerHandler *)
 FOR INTERNAL USE Processes pairs of references to SgNode* and strings for use in AST tools More...
 
virtual long getChildIndex (SgNode *childNode) const
 FOR INTERNAL USE Returns a unique index value for the childNode in the list of children at this IR node. More...
 
 SgSymbol (const SgSymbolStorageClass &source)
 
SgSymboladdRegExpAttribute (std::string s, AstRegExAttribute *a)
 Support for AST matching using regular expression. More...
 
AstAttributeMechanismget_attributeMechanism () const
 FOR INTERNAL USE Access function; if an attribute exists then a pointer to it is returned, else error. More...
 
void set_attributeMechanism (AstAttributeMechanism *attributeMechanism)
 FOR INTERNAL USE Access function; sets poiner to value AstAttributeMechanism. More...
 
virtual ~SgSymbol ()
 This is the destructor. More...
 
 SgSymbol ()
 This is the default constructor. More...
 
- Public Member Functions inherited from SgNode
virtual SgNodecopy (SgCopyHelp &help) const
 This function clones the current IR node object recursively or not, depending on the argument. More...
 
void * operator new (size_t size)
 returns pointer to newly allocated IR node More...
 
void operator delete (void *pointer, size_t size)
 deallocated memory for IR node (returns memory to memory pool for reuse) More...
 
void operator delete (void *pointer)
 
void executeVisitorMemberFunction (ROSE_VisitorPattern &visitor)
 FOR INTERNAL USE Support for visitor pattern. More...
 
 SgNode (const SgNodeStorageClass &source)
 
SgNodeaddRegExpAttribute (std::string s, AstRegExAttribute *a)
 Support for AST matching using regular expression. More...
 
void set_isModified (bool isModified)
 All nodes in the AST contain a isModified flag used to track changes to the AST. More...
 
bool get_isModified () const
 Acess function for isModified flag This flag records if the current IR node has been modified. It is set to false after and ROSE front-end processing. More...
 
void set_parent (SgNode *parent)
 All nodes in the AST contain a reference to a parent node. More...
 
SgNodeget_parent () const
 Access function for parent node. More...
 
bool isChild (SgNode *node) const
 Query function for if the input IR nodes is a child of the current IR node. More...
 
virtual std::string unparseToString (SgUnparse_Info *info) const
 This function unparses the AST node (excluding comments and unnecessary white space) More...
 
std::string unparseToString () const
 
std::string unparseToCompleteString ()
 This function unparses the AST node (including comments and white space) More...
 
int variant () const ROSE_DEPRECATED_FUNCTION
 Older version function returns enum value "NODE". More...
 
virtual void fixupCopy (SgNode *copy, SgCopyHelp &help) const
 
virtual Sg_File_Infoget_file_info (void) const
 File information containing filename, line number, column number, and if the SgNode is a part of a new transformation, etc. More...
 
virtual Sg_File_Infoget_startOfConstruct (void) const
 New function interface for Sg_File_Info data stores starting location of contruct (typically the opening brace or first letter of keyword). More...
 
virtual Sg_File_Infoget_endOfConstruct (void) const
 New function interface for Sg_File_Info data stores ending location of contruct (typically the closing brace). More...
 
VirtualCFG::CFGNode cfgForBeginning ()
 Returns the CFG node for just before this AST node. More...
 
VirtualCFG::CFGNode cfgForEnd ()
 Returns the CFG node for just after this AST node. More...
 
virtual unsigned int cfgIndexForEnd () const
 Determine the CFG index for the end of this construct. More...
 
virtual bool cfgIsIndexInteresting (unsigned int index) const
 Determine whether a particular CFG node index is "interesting" for this kind of node. More...
 
virtual unsigned int cfgFindChildIndex (SgNode *n)
 Find the index of n in this node's CFG children. More...
 
virtual unsigned int cfgFindNextChildIndex (SgNode *n)
 Find the index just after n in this node's CFG children. More...
 
virtual std::vector
< VirtualCFG::CFGEdge
cfgOutEdges (unsigned int index=false)
 Find the out edges of a CFG node – internal version. More...
 
virtual std::vector
< VirtualCFG::CFGEdge
cfgInEdges (unsigned int index=false)
 Find the in edges of a CFG node – internal version. More...
 
int numberOfNodesInSubtree ()
 Computes the number of nodes in the defined subtree of the AST. More...
 
int depthOfSubtree ()
 Computes the depth of the current defined subtree of the AST. More...
 
SgNodeget_freepointer () const
 
void set_freepointer (SgNode *freepointer)
 
virtual ~SgNode ()
 This is the destructor. More...
 
 SgNode ()
 This is the constructor. More...
 
bool get_isVisited () const ROSE_DEPRECATED_FUNCTION
 DOCS IN HEADER: Access function for p_isVisited flag used previously by the AST traversals. More...
 
void set_isVisited (bool isVisited) ROSE_DEPRECATED_FUNCTION
 Access function for p_isVisited flag used previously by the AST traversals. More...
 

Static Public Member Functions

static size_t numberOfNodes ()
 Returns the total number of IR nodes of this type. More...
 
static size_t memoryUsage ()
 Returns the size in bytes of the total memory allocated for all IR nodes of this type. More...
 
static void traverseMemoryPoolNodes (ROSE_VisitTraversal &visit)
 FOR INTERNAL USE Support for visitor pattern. More...
 
static void traverseMemoryPoolVisitorPattern (ROSE_VisitorPattern &visitor)
 FOR INTERNAL USE Support for visitor pattern. More...
 
static void visitRepresentativeNode (ROSE_VisitTraversal &visit)
 FOR INTERNAL USE Support for type-based traversal. More...
 
- Static Public Member Functions inherited from SgNode
static size_t numberOfNodes ()
 Returns the total number of IR nodes of this type. More...
 
static size_t memoryUsage ()
 Returns the size in bytes of the total memory allocated for all IR nodes of this type. More...
 
static void traverseMemoryPoolNodes (ROSE_VisitTraversal &visit)
 FOR INTERNAL USE Support for visitor pattern. More...
 
static void traverseMemoryPoolVisitorPattern (ROSE_VisitorPattern &visitor)
 FOR INTERNAL USE Support for visitor pattern. More...
 
static void visitRepresentativeNode (ROSE_VisitTraversal &visit)
 FOR INTERNAL USE Support for type-based traversal. More...
 
static std::vector< std::string > buildCommandLineToSubstituteTransformationFile (const std::vector< std::string > &argv, std::string newFileName)
 Command line support for this compilation The command line is saved as a static variable so that it will be available to support the rewrite mechanism. More...
 
static std::vector< VariantTgetClassHierarchySubTreeFunction (VariantT v)
 
static void getClassHierarchySubTreeFunction (VariantT v, std::vector< VariantT > &)
 
static std::map< SgNode
*, std::string > & 
get_globalMangledNameMap ()
 Access function for performance optimizing global mangled name map. More...
 
static void clearGlobalMangledNameMap ()
 Support to clear the performance optimizing global mangled name map. More...
 
static std::map< std::string,
int > & 
get_shortMangledNameCache ()
 Access function for lower level optimizing of global mangled name map. More...
 
static std::map< SgNode
*, std::string > & 
get_globalQualifiedNameMapForNames ()
 Access function for name qualification support (for names). More...
 
static void set_globalQualifiedNameMapForNames (const std::map< SgNode *, std::string > &X)
 Access function for name qualification support (for names). More...
 
static std::map< SgNode
*, std::string > & 
get_globalQualifiedNameMapForTypes ()
 Access function for name qualification support (for type). More...
 
static void set_globalQualifiedNameMapForTypes (const std::map< SgNode *, std::string > &X)
 Access function for name qualification support (for type). More...
 
static std::map< SgNode
*, std::string > & 
get_globalTypeNameMap ()
 Access function for name qualification support (for names of types). More...
 
static void set_globalTypeNameMap (const std::map< SgNode *, std::string > &X)
 Access function for name qualification support (for names of types). More...
 
static SgFunctionTypeTableget_globalFunctionTypeTable ()
 Access function for symbol table specific to function types. More...
 
static void set_globalFunctionTypeTable (SgFunctionTypeTable *globalFunctionTypeTable)
 Access function for symbol table specific to function types. More...
 
static SgTypeTableget_globalTypeTable ()
 Access function for symbol table specific to non-function types. More...
 
static void set_globalTypeTable (SgTypeTable *globalTypeTable)
 Access function for symbol table specific to non-function types. More...
 

Protected Attributes

AstAttributeMechanismp_attributeMechanism
 
- Protected Attributes inherited from SgNode
SgNodep_parent
 This is the pointer to the parent IR node in the AST. More...
 
bool p_isModified
 Records if IR node has been modified (data members reset). More...
 
SgNodep_freepointer
 This is the pointer to the chain of previously freed objects. More...
 

Friends

class AST_FILE_IO
 
class SgSymbolStorageClass
 
class AstSpecificDataManagingClass
 
class AstSpecificDataManagingClassStorageClass
 
ROSE_DLL_API friend SgSymbolisSgSymbol (SgNode *s)
 Casts pointer from base class to derived class. More...
 
ROSE_DLL_API friend const
SgSymbol
isSgSymbol (const SgNode *s)
 Casts pointer from base class to derived class (for const pointers) More...
 
SgSymbolSgSymbol_getPointerFromGlobalIndex (unsigned long globalIndex)
 Constructor for use by AST File I/O Mechanism. More...
 
unsigned long SgSymbol_getNumberOfValidNodesAndSetGlobalIndexInFreepointer (unsigned long)
 Get the size of the memory pool. More...
 
void SgSymbol_clearMemoryPool ()
 
void SgSymbol_extendMemoryPoolForFileIO (unsigned long)
 
void SgSymbol_getNextValidPointer (std::pair< SgSymbol *, std::vector< unsigned char * >::const_iterator > &)
 
void SgSymbol_resetValidFreepointers ()
 

Additional Inherited Members

- Protected Member Functions inherited from SgNode
virtual void post_construction_initialization ()
 Final initialization for constructors This function is called at the end of generated constructors to allow the specification writer to add special initialization functions or tests. Default is to do nothing. Otherwise it should be overridden in the spec file, in NewHeaderCode/NewOutlinedCode. More...
 
- Static Protected Attributes inherited from SgNode
static SgFunctionTypeTablep_globalFunctionTypeTable
 Pointer to symbol table specific to function types. More...
 
static SgTypeTablep_globalTypeTable
 
static std::map< SgNode
*, std::string > 
p_globalMangledNameMap
 Cache of mangled names to avoid regeneration of previously build mangled names or parts of mangled names. This is a performance optimization. More...
 
static std::map< std::string, int > p_shortMangledNameCache
 STL map used as a cache to shorten generated mangled names. This is mostly a space optimization ofr mangled names of templates. More...
 
static std::map< SgNode
*, std::string > 
p_globalQualifiedNameMapForNames
 
static std::map< SgNode
*, std::string > 
p_globalQualifiedNameMapForTypes
 
static std::map< SgNode
*, std::string > 
p_globalTypeNameMap
 

Detailed Description

This class represents the concept of a name within the compiler.

Symbols are a simpler way for the compiler to quickly associate types, declarations and names. It is also more compact than carrying around names as strings. The SgSymbol can contain many references and is a shared IR node.

A "symbol" within the compiler is a concept of a name.  The simplest

example is a variable name, the variable most often has a name but internally within the compiler the variable is referenced as a symbol, the symbol data struction contains a name, type, and declaration (where the name was first associated with the type). Each variable has an associated symbol and each variable reference internally stores a pointer to the single symbol representing that variable. this avoids the compiler internally relying upon string processing to compile variable (different symbols can be trivially compared to either have the same address on not). Each named entity within the language's translation within the AST has a unique symbol. Mappings from names to symbols are held in the "Symbol Table" which provides for a quick (hashed) lookup on the symbol for any name. Mappings from the symbol to the name are held through pointers to the declaration (stored within the symbol).

To organize the symbols, they are differentiated by type, each symbol is derived from the SgSymbol class and defines a specialized interface for that specific kind of IR node. For example, there are symbol objects specific to classes, templates, variable, enums, functions, member functions, lables, function types, namespaces, typedefs, etc. In each case these symbols contain a name (or method for generating a name when it is located elsewhere), and a declaration, and often a reference to a type (or function to returning the type if not held in the symbol directly).

Each SgSymbol has a get_name() member function which gets the associated name of the symbol, usually from the stored declaration. A few symbols have an explicitly stored name (SgName), this is done where the name is derived from a named type (SgNamedType).

IMPORTANT: Declarations in Symbols \n

Indepedent of the different kinds of declarations (declarations are statements), declarations can be considered to be definind and non-defining. See SgDeclarationStatement for details. where there exist defining and non-defining declarations symbols within Sage III always reference non-defining declarations (only non-defining declarations are shared within the AST).

There are no uses of this IR node anywhere.  All expressions and statements

are derived from this IR node to build either SgExpression or SgStatement derived classes.

This is a base class for all symbols.

Todo:
Consider derivation of SgEnumSymbol, SgClassSymbol, and SgTypedefSymbol from a common SgTypeSymbol. Then supporting functions for SgTypeSymbol would lookup any of these type based symbols.
See Also
SgDeclarationStatement
Example of using a SgSymbol object

Definition at line 240632 of file Cxx_Grammar.h.

Member Typedef Documentation

Definition at line 241058 of file Cxx_Grammar.h.

Member Enumeration Documentation

anonymous enum

static variant value

Enumerator
static_variant 

Definition at line 240746 of file Cxx_Grammar.h.

Constructor & Destructor Documentation

SgSymbol::SgSymbol ( const SgSymbolStorageClass source)
SgSymbol::~SgSymbol ( )
virtual

This is the destructor.

SgSymbol::SgSymbol ( )

This is the default constructor.

This constructor builds the SgSymbol base class.

See Also
Example:create an SgSymbol object

Member Function Documentation

virtual SgScopeStatement* SgSymbol::get_scope ( ) const
virtual

Reimplemented in SgMemberFunctionSymbol.

SgName SgSymbol::get_mangled_name ( ) const
SgDeclarationStatement* SgSymbol::get_declaration ( ) const
virtual void SgSymbol::addNewAttribute ( std::string  s,
AstAttribute a 
)
virtual

Add a new attribute represented by the named string.

Reimplemented from SgNode.

virtual AstAttribute* SgSymbol::getAttribute ( std::string  s) const
virtual

Returns attribute of name 's'.

Reimplemented from SgNode.

virtual void SgSymbol::updateAttribute ( std::string  s,
AstAttribute a 
)
virtual

Replace existing attribute of name 's' with new AstAttribute.

Reimplemented from SgNode.

virtual void SgSymbol::setAttribute ( std::string  s,
AstAttribute a 
)
virtual

This is a wrapper function with the following semantics: if no attribute of name 's' exists then addNewAttribute(s,a); is called, otherwise updateAttribute(s,a); is called.

Reimplemented from SgNode.

virtual void SgSymbol::removeAttribute ( std::string  s)
virtual

Remove attribute of name 's' if present.

Reimplemented from SgNode.

virtual bool SgSymbol::attributeExists ( std::string  s) const
virtual

Tests if attribute of name 's' is present.

Reimplemented from SgNode.

virtual int SgSymbol::numberOfAttributes ( ) const
virtual

Returns the number of attributes on this IR node.

Reimplemented from SgNode.

void* SgSymbol::operator new ( size_t  size)

returns pointer to newly allocated IR node

void SgSymbol::operator delete ( void *  pointer,
size_t  size 
)

deallocated memory for IR node (returns memory to memory pool for reuse)

void SgSymbol::operator delete ( void *  pointer)
static size_t SgSymbol::numberOfNodes ( )
static

Returns the total number of IR nodes of this type.

static size_t SgSymbol::memoryUsage ( )
static

Returns the size in bytes of the total memory allocated for all IR nodes of this type.

virtual std::vector<SgNode*> SgSymbol::get_traversalSuccessorContainer ( )
virtual

FOR INTERNAL USE within ROSE traverals mechanism only.

This function builds and returns a copy of ordered container holding pointers to children of this node in a traversal. It is associated with the definition of a tree that is travered by the AST traversal mechanism; a tree that is embeded in the AST (which is a more general graph). This function is used within the implementation of the AST traversal and has a semantics may change in subtle ways that makes it difficult to use in user code. It can return unexpected data members and thus the order and the number of elements is unpredicable and subject to change.

Warning
This function can return unexpected data members and thus the order and the number of elements is unpredicable and subject to change.
Returns
Returns ordered STL Container of pointers to children nodes in AST.

Reimplemented from SgNode.

Reimplemented in SgJavaLabelSymbol, SgAsmBinaryDataSymbol, SgAsmBinaryAddressSymbol, SgAliasSymbol, SgCommonSymbol, SgInterfaceSymbol, SgModuleSymbol, SgIntrinsicSymbol, SgNamespaceSymbol, SgDefaultSymbol, SgLabelSymbol, SgTypedefSymbol, SgEnumFieldSymbol, SgEnumSymbol, SgTemplateSymbol, SgTemplateClassSymbol, SgClassSymbol, SgFunctionTypeSymbol, SgRenameSymbol, SgTemplateFunctionSymbol, SgTemplateMemberFunctionSymbol, SgMemberFunctionSymbol, SgFunctionSymbol, SgTemplateVariableSymbol, and SgVariableSymbol.

virtual std::vector<std::string> SgSymbol::get_traversalSuccessorNamesContainer ( )
virtual

FOR INTERNAL USE within ROSE traverals mechanism only.

This function builds and returns a copy of ordered container holding strings used to name data members that are traversed in the IR node. It is associated with the definition of a tree that is travered by the AST traversal mechanism; a tree that is embeded in the AST (which is a more general graph). This function is used within the implementation of the AST traversal and has a semantics may change in subtle ways that makes it difficult to use in user code. It can return unexpected data members and thus the order and the number of elements is unpredicable and subject to change.

Warning
This function can return unexpected data members and thus the order and the number of elements is unpredicable and subject to change.

Each string is a name of a member variable holding a pointer to a child in the AST. The names are the same as used in the generated enums for accessing attributes in a traversal. The order is the same in which they are traversed and the same in which the access enums are defined. Therefore this method can be used to get the corresponding name (string) of an access enum which allows to produce more meaningful messages for attribute computations.

Returns
Returns ordered STL container of names (strings) of access names to children nodes in AST.

Reimplemented from SgNode.

Reimplemented in SgJavaLabelSymbol, SgAsmBinaryDataSymbol, SgAsmBinaryAddressSymbol, SgAliasSymbol, SgCommonSymbol, SgInterfaceSymbol, SgModuleSymbol, SgIntrinsicSymbol, SgNamespaceSymbol, SgDefaultSymbol, SgLabelSymbol, SgTypedefSymbol, SgEnumFieldSymbol, SgEnumSymbol, SgTemplateSymbol, SgTemplateClassSymbol, SgClassSymbol, SgFunctionTypeSymbol, SgRenameSymbol, SgTemplateFunctionSymbol, SgTemplateMemberFunctionSymbol, SgMemberFunctionSymbol, SgFunctionSymbol, SgTemplateVariableSymbol, and SgVariableSymbol.

virtual RTIReturnType SgSymbol::roseRTI ( )
virtual

FOR INTERNAL USE Access to Runtime Type Information (RTI) for this IR nodes.

 This function provides runtime type information for accessing the

structure of the current node. It is useful for generating code which would dump out or rebuild IR nodes.

Returns
Returns a RTIReturnType object (runtime type information).

Reimplemented from SgNode.

Reimplemented in SgJavaLabelSymbol, SgAsmBinaryDataSymbol, SgAsmBinaryAddressSymbol, SgAliasSymbol, SgCommonSymbol, SgInterfaceSymbol, SgModuleSymbol, SgIntrinsicSymbol, SgNamespaceSymbol, SgDefaultSymbol, SgLabelSymbol, SgTypedefSymbol, SgEnumFieldSymbol, SgEnumSymbol, SgTemplateSymbol, SgTemplateClassSymbol, SgClassSymbol, SgFunctionTypeSymbol, SgRenameSymbol, SgTemplateFunctionSymbol, SgTemplateMemberFunctionSymbol, SgMemberFunctionSymbol, SgFunctionSymbol, SgTemplateVariableSymbol, and SgVariableSymbol.

void SgSymbol::executeVisitorMemberFunction ( ROSE_VisitorPattern visitor)

FOR INTERNAL USE Support for visitor pattern.

static void SgSymbol::traverseMemoryPoolNodes ( ROSE_VisitTraversal visit)
static

FOR INTERNAL USE Support for visitor pattern.

static void SgSymbol::traverseMemoryPoolVisitorPattern ( ROSE_VisitorPattern visitor)
static

FOR INTERNAL USE Support for visitor pattern.

static void SgSymbol::visitRepresentativeNode ( ROSE_VisitTraversal visit)
static

FOR INTERNAL USE Support for type-based traversal.

virtual bool SgSymbol::isInMemoryPool ( )
virtual

FOR INTERNAL USE This is used in internal tests to verify that all IR nodes are allocated from the heap.

The AST File I/O depends upon the allocation of IR nodes being from the heap, stack based or global IR nodes should not appear in the AST if it will be written out to a file and read back in. To enforce this concept, this function implements a test to verify that the IR node can be found on the heap and is part of a larger test of the whole AST. This test must pass before the AST can be written out to a file. This is part of a compromise in the design of the AST File I/O to support binary streaming of data to files; for performance. It is also rather difficult, but possible, to build a useful AST with IR nodes allocated on the stack or frm global scope, this test filters out such cased from being used with the AST File I/O mechanism.

Reimplemented from SgNode.

Reimplemented in SgJavaLabelSymbol, SgAsmBinaryDataSymbol, SgAsmBinaryAddressSymbol, SgAliasSymbol, SgCommonSymbol, SgInterfaceSymbol, SgModuleSymbol, SgIntrinsicSymbol, SgNamespaceSymbol, SgDefaultSymbol, SgLabelSymbol, SgTypedefSymbol, SgEnumFieldSymbol, SgEnumSymbol, SgTemplateSymbol, SgTemplateClassSymbol, SgClassSymbol, SgFunctionTypeSymbol, SgRenameSymbol, SgTemplateFunctionSymbol, SgTemplateMemberFunctionSymbol, SgMemberFunctionSymbol, SgFunctionSymbol, SgTemplateVariableSymbol, and SgVariableSymbol.

virtual void SgSymbol::checkDataMemberPointersIfInMemoryPool ( )
virtual

FOR INTERNAL USE This is used in internal tests to verify that all IR nodes are allocated from the heap.

The AST File I/O depends upon the allocation of IR nodes being from the heap, stack based or global IR nodes should not appear in the AST if it will be written out to a file and read back in. To enforce this concept, this function implements a test to verify that the IR node can be found on the heap and is part of a larger test of the whole AST. This test must pass before the AST can be written out to a file. This is part of a compromise in the design of the AST File I/O to support binary streaming of data to files; for performance. It is also rather difficult, but possible, to build a useful AST with IR nodes allocated on the stack or frm global scope, this test filters out such cased from being used with the AST File I/O mechanism.

Reimplemented from SgNode.

Reimplemented in SgJavaLabelSymbol, SgAsmBinaryDataSymbol, SgAsmBinaryAddressSymbol, SgAliasSymbol, SgCommonSymbol, SgInterfaceSymbol, SgModuleSymbol, SgIntrinsicSymbol, SgNamespaceSymbol, SgDefaultSymbol, SgLabelSymbol, SgTypedefSymbol, SgEnumFieldSymbol, SgEnumSymbol, SgTemplateSymbol, SgTemplateClassSymbol, SgClassSymbol, SgFunctionTypeSymbol, SgRenameSymbol, SgTemplateFunctionSymbol, SgTemplateMemberFunctionSymbol, SgMemberFunctionSymbol, SgFunctionSymbol, SgTemplateVariableSymbol, and SgVariableSymbol.

virtual std::vector<std::pair<SgNode*,std::string> > SgSymbol::returnDataMemberPointers ( ) const
virtual

FOR INTERNAL USE Returns STL vector of pairs of SgNode* and strings for use in AST tools

This functions is part of general support for many possible tools to operate on the AST. The forms a list of ALL IR node pointers used by each IR node, and is a supperset of the get_traversalSuccessorContainer(). It is (I think) less than the set of pointers used by the AST file I/O. This is part of work implemented by Andreas, and support tools such as the AST graph generation.

Warning
This function can return unexpected data members and thus the order and the number of elements is unpredicable and subject to change.
Returns
STL vector of pairs of SgNode* and strings

Reimplemented from SgNode.

Reimplemented in SgJavaLabelSymbol, SgAsmBinaryDataSymbol, SgAsmBinaryAddressSymbol, SgAliasSymbol, SgCommonSymbol, SgInterfaceSymbol, SgModuleSymbol, SgIntrinsicSymbol, SgNamespaceSymbol, SgDefaultSymbol, SgLabelSymbol, SgTypedefSymbol, SgEnumFieldSymbol, SgEnumSymbol, SgTemplateSymbol, SgTemplateClassSymbol, SgClassSymbol, SgFunctionTypeSymbol, SgRenameSymbol, SgTemplateFunctionSymbol, SgTemplateMemberFunctionSymbol, SgMemberFunctionSymbol, SgFunctionSymbol, SgTemplateVariableSymbol, and SgVariableSymbol.

virtual void SgSymbol::processDataMemberReferenceToPointers ( ReferenceToPointerHandler *  )
virtual

FOR INTERNAL USE Processes pairs of references to SgNode* and strings for use in AST tools

This functions similar to returnDataMemberPointers() except that it passes references to a handler object. As a result there is FAR more damage that can be done by using this function, but it is type-safe. This is provided for support of internal tools that operate on the AST, e.g the AST Merge mechanism.

Warning
This function can return unexpected data members and thus the order and the number of elements is unpredicable and subject to change.

Reimplemented from SgNode.

Reimplemented in SgJavaLabelSymbol, SgAsmBinaryDataSymbol, SgAsmBinaryAddressSymbol, SgAliasSymbol, SgCommonSymbol, SgInterfaceSymbol, SgModuleSymbol, SgIntrinsicSymbol, SgNamespaceSymbol, SgDefaultSymbol, SgLabelSymbol, SgTypedefSymbol, SgEnumFieldSymbol, SgEnumSymbol, SgTemplateSymbol, SgTemplateClassSymbol, SgClassSymbol, SgFunctionTypeSymbol, SgRenameSymbol, SgTemplateFunctionSymbol, SgTemplateMemberFunctionSymbol, SgMemberFunctionSymbol, SgFunctionSymbol, SgTemplateVariableSymbol, and SgVariableSymbol.

virtual long SgSymbol::getChildIndex ( SgNode childNode) const
virtual

FOR INTERNAL USE Returns a unique index value for the childNode in the list of children at this IR node.

This function returns a unique value for the input childNode in set of children at this IR node. Note that a negative value indicates that the input node is not a child. This is the basis for the implementation of the isChild(SgNode*) member function. Data members that are NULL in the IR node are counted internally (so that this function returns value that could be statically defined, and so are not dynamically determined).

Warning
The mapping on children to integer values could change from release to release of ROSE.
Returns
long

Reimplemented from SgNode.

Reimplemented in SgJavaLabelSymbol, SgAsmBinaryDataSymbol, SgAsmBinaryAddressSymbol, SgAliasSymbol, SgCommonSymbol, SgInterfaceSymbol, SgModuleSymbol, SgIntrinsicSymbol, SgNamespaceSymbol, SgDefaultSymbol, SgLabelSymbol, SgTypedefSymbol, SgEnumFieldSymbol, SgEnumSymbol, SgTemplateSymbol, SgTemplateClassSymbol, SgClassSymbol, SgFunctionTypeSymbol, SgRenameSymbol, SgTemplateFunctionSymbol, SgTemplateMemberFunctionSymbol, SgMemberFunctionSymbol, SgFunctionSymbol, SgTemplateVariableSymbol, and SgVariableSymbol.

SgSymbol* SgSymbol::addRegExpAttribute ( std::string  s,
AstRegExAttribute a 
)

Support for AST matching using regular expression.

This support is incomplete and the subject of current research to define RegEx trees to support inexact matching.

AstAttributeMechanism * SgSymbol::get_attributeMechanism ( ) const
virtual

FOR INTERNAL USE Access function; if an attribute exists then a pointer to it is returned, else error.

This is an access function used for getting the interally held pointer to a valid AstAttributeMechanism. It provides access to lower level functionality of the AstAttributeMechanism, put is mostly of use to internal tools.

Reimplemented from SgNode.

void SgSymbol::set_attributeMechanism ( AstAttributeMechanism a)
virtual

FOR INTERNAL USE Access function; sets poiner to value AstAttributeMechanism.

This is an access function used for setting the interally held pointer to a valid AstAttributeMechanism.

Reimplemented from SgNode.

Friends And Related Function Documentation

friend class AST_FILE_IO
friend

Definition at line 241017 of file Cxx_Grammar.h.

friend class SgSymbolStorageClass
friend

Definition at line 241018 of file Cxx_Grammar.h.

friend class AstSpecificDataManagingClass
friend

Definition at line 241019 of file Cxx_Grammar.h.

friend class AstSpecificDataManagingClassStorageClass
friend

Definition at line 241020 of file Cxx_Grammar.h.

SgSymbol::isSgSymbol ( SgNode s)
friend

Casts pointer from base class to derived class.

Cast function (from derived class to SgSymbol pointer).

This functions returns a SgSymbol pointer for any input of a pointer to an object derived from a SgSymbol.

Returns
Returns valid pointer to SgSymbol if input is derived from a SgSymbol.
SgSymbol::isSgSymbol ( const SgNode s)
friend

Casts pointer from base class to derived class (for const pointers)

Cast function (from derived class to SgSymbol pointer).

This functions returns a SgSymbol pointer for any input of a pointer to an object derived from a SgSymbol.

Returns
Returns valid pointer to SgSymbol if input is derived from a SgSymbol.
SgSymbol* SgSymbol_getPointerFromGlobalIndex ( unsigned long  globalIndex)
friend

Constructor for use by AST File I/O Mechanism.

This constructor permits the IR node to be rebuilt from the contiguously arranged data in memory which obtained via fast binary file I/O from disk.

Typedef used for low level memory access.

Typedef used to hold memory addresses as values.

Methods to find the pointer to a global and local index

unsigned long SgSymbol_getNumberOfValidNodesAndSetGlobalIndexInFreepointer ( unsigned  long)
friend

Get the size of the memory pool.

It actually returns the size of the whole blocks allocated, no matter they contain valid pointers or not.

void SgSymbol_clearMemoryPool ( )
friend
void SgSymbol_extendMemoryPoolForFileIO ( unsigned  long)
friend
void SgSymbol_getNextValidPointer ( std::pair< SgSymbol *, std::vector< unsigned char * >::const_iterator > &  )
friend
void SgSymbol_resetValidFreepointers ( )
friend

Member Data Documentation

AstAttributeMechanism* SgSymbol::p_attributeMechanism
protected

Definition at line 241077 of file Cxx_Grammar.h.


The documentation for this class was generated from the following files: