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subdeclNode Class Reference
[The AST nodes]

Indexed declaration. More...

#include <ast.h>

Inheritance diagram for subdeclNode:

List of all members.


Garbage collection.
bool	mark
node_list	nodes
map< Node *, bool >	deleted_nodes
Public Types
enum	Decl_location { UNKNOWN, TOP, BLOCK, FORMAL, SU, ENUM, PROC }
	Declaration location. More...
enum	Storage_class { NONE, AUTO, EXTERN, REGISTER, STATIC, TYPEDEF }
	Storage class specifier. More...
Public Member Functions
	subdeclNode (declNode *orig, int index)
	Create a sub-declaration.
virtual	~subdeclNode ()
	Destroy a subdeclNode.
string	name_with_index ()
	Get the name with index.
virtual Node *	clone () const
	Clone the input node.
virtual void	output (output_context &ct, Node *par)
	Generate C code.
typeNode *	base_type (bool TdefIndir) const
	Return the base data type of a node.
typeNode *	no_tdef_type ()
	Return the type.
virtual void	dataflow (FlowVal *v, FlowProblem &fp)
	Run the dataflow analyzer.
typeNode *	datatype () const
	Call base_type() with the argument true.
typeNode *	datatype_superior () const
	Call base_type() with the argument false.
Accessors
Methods to get and set fields in the class.
virtual declNode *	original ()
	SSA original declaration.
int	index () const
AST Traversal
Methods to uniformly traverse the AST. See the documentation in the Node class.
virtual void	visit (Visitor *the_visitor)
	Dispatch a Visitor.
virtual void	walk (Walker &the_walker)
	Dispatch a Walker.
virtual Node *	change (Changer &the_changer, bool redispatch=false)
	Dispatch a Changer.
Accessors
Methods to get and set fields in the class.
typeNode *	type () const
	Return this declNode's base C data type.
void	type (typeNode *the_type)
	Set this declNode's base C data type.
typeNode *	get_type ()
	Return this declNode's base C data type, and set the base C data type to be empty.
string &	name ()
	Return the name of the variable declared by this declNode.
void	name (string name)
	Set the name of the variable declared by this declNode.
Decl_location	decl_location () const
	Return a Decl_location indicating the syntactic context in which this declaration occured.
void	decl_location (Decl_location loc)
	Set the syntactic context in which this declaration occured.
Storage_class	storage_class () const
	Return the storage class of the variable declared by this declNode.
void	storage_class (Storage_class sc)
	Set the storage class of the variable declared by this declNode.
bool	is_redundant_extern () const
	Return true iff this declaration is a redundant extern declaration.
void	set_redundant_extern (bool v)
	Set whether this declaration is a redundant extern declaration.
void	inc_references ()
	Increment the number of identifier nodes that point to this declaration.
exprNode *	init () const
	Return the AST used to initialize the variable declared by this declNode.
void	init (exprNode *init)
	Define the AST node used to initialize the variable declared by this declNode.
exprNode *	bitsize () const
	Return this Node's bitsize.
void	bitsize (exprNode *bitsize)
	Define the bitsize for this declNode.
int	references () const
	Return the number of idNodes that point to this declaration.
void	references (int references)
	Set the number of idNodes that point to this declaration.
id_list &	ref_list ()
const id_list &	ref_list () const
attrib_list &	attribs ()
	Return a mutable reference to this declaration's attribute list.
const attrib_list &	attribs () const
	Return an immutable reference to this declaration's attribute list.
void	merge_attribs (attrib_list *attribs)
	Add each attribute in the given attribute list to this declNode's attribute list.
Storage_location &	storage_location ()
	Returns a reference to the storage location for this data.
Parser methods
void	set_type (typeNode *the_type, Storage_class sc, ScopeState redeclare)
declNode *	set_type_and (typeNode *the_type, Storage_class sc, ScopeState redeclare)
declNode *	set_type_and (declNode *the_decltype, Storage_class sc, ScopeState redeclare)
void	inherit_type (decl_list *others, ScopeState redeclare)
declNode *	inherit_type_and (decl_list *others, ScopeState redeclare)
void	modify_type (typeNode *the_type)
declNode *	modify_type_and (typeNode *the_type)
declNode *	modify_type_and (declNode *the_type)
void	set_init (exprNode *init)
declNode *	set_init_and (exprNode *init)
void	add_parameter_types (decl_list *types)
declNode *	add_parameter_types_and (decl_list *types)
void	finish (Storage_class sc)
declNode *	finish_and (Storage_class sc)
Accessors
Methods to get and set fields in the class.
text_list &	pragmas ()
Accessors
Methods to get and set fields in the class.
NodeType	typ () const
	Get the node type.
Coord	coord () const
	Get the source location.
void	coord (const Coord coord)
	Set the source location.
bool	parenthesized () const
	Get the parenthesized boolean.
void	parenthesized (bool paren)
	Set the parenthesized boolean.
annote_list &	annotations ()
	Get the annotations list.
FlowVal *	gen () const
	Get the "gen" flow value.
void	gen (FlowVal *g)
	Set the "gen" flow value.
FlowVal *	kill () const
	Get the "kill" flow value.
void	kill (FlowVal *k)
	Set the "kill" flow value.
Static Public Member Functions
void	report ()
	Report node count statistics.
Output methods.
These two methods are used when generating C code to convert the Storage_class and Decl_location values into strings.
string	storage_class_name (Storage_class sc)
	Return a string value containing the C code for this Declaration's storage class.
string	decl_location_name (Decl_location dl)
	Return a string value containing the C code for this Declaration's location.
Private Attributes
REF declNode *	_original
int	_index

Detailed Description

Indexed declaration.

Subclass of declNode used to create derived indexed declarations. It is currently only used in the SSA pass, which creates a series of indexed version of each variable. A subdeclNode consists of a base declaration and a subscript. For example, the indexed declaration for has the declaration for x as it base and has a subscript of 1. Sometimes, the subdeclNode's base is also refered to as its "original" declaration. The subdeclNode's subscript is also called its version or its index.

The NodeType is Decl.

Definition at line 1252 of file ast.h.

Member Enumeration Documentation

enum declNode::Decl_location [inherited]

Declaration location.
This type is used to record some syntactic context information about the declaration. This information is computed by the id_lookup_walker.

See also:
id_lookup_walker

Enumeration values:

UNKNOWN No context provided

TOP A top-level declaration (either a global variable or a function declaration).

BLOCK A regular local variable declared inside a function body.

FORMAL A formal argument declared in the function interface.

SU A struct/union field declaration.

ENUM An element of an enum declaration.

PROC A function declaration that has the function definition.

Definition at line 755 of file ast.h.
Referenced by UnificationBasedPtr::at_decl(), SSA::need_ssa(), output(), and declNode::output().

enum declNode::Storage_class [inherited]

Storage class specifier.
This type indicates any storage class information associated with the declaration. It is overloaded to also indicate when a declaration is a typedef.
Enumeration values:

NONE

AUTO

EXTERN

REGISTER

STATIC

TYPEDEF

Definition at line 772 of file ast.h.

Constructor & Destructor Documentation

subdeclNode::subdeclNode ( declNode * orig,

int index

)

Create a sub-declaration.
This constructor creates a new sub-declaration of the given input declaration. The index indicates which version (or subscript) to associate with the sub-declaration.

Parameters:

orig the original declaration from which this subdeclaration is derived

index the index of the new sub-declaration

Definition at line 47 of file subdeclnode.cc.
References attrib_list, declNode::bitsize(), declNode::init(), and declNode::type().
Referenced by clone().

subdeclNode::~subdeclNode ( ) [virtual]

Destroy a subdeclNode.

Warning:
Do not use the destructors to delete AST nodes. Instead, rely on the node garbage collector.

Definition at line 219 of file subdeclnode.cc.

Member Function Documentation

void declNode::add_parameter_types ( decl_list * types ) [inherited]

Definition at line 485 of file declnode.cc.
References funcNode::add_parameter_types(), Func, Node::typ(), and declNode::type().
Referenced by declNode::add_parameter_types_and().

declNode * declNode::add_parameter_types_and ( decl_list * types ) [inherited]

Definition at line 493 of file declnode.cc.
References declNode::add_parameter_types().

annote_list& Node::annotations ( ) [inline, inherited]

Get the annotations list.
This method returns a modifiable reference to the list of annotations on the node. Users can add new annotations, search for annotations, or remove annotations. Users are responsible for ensuring that every element of the annotation list points to a valid annotation. In particular, no element should be NULL.

See also:
Annote class

Definition at line 276 of file ast.h.
References annote_list.

const attrib_list& declNode::attribs ( ) const [inline, inherited]

Return an immutable reference to this declaration's attribute list.

Definition at line 1115 of file ast.h.
References attrib_list.

attrib_list& declNode::attribs ( ) [inline, inherited]

Return a mutable reference to this declaration's attribute list.

Definition at line 1110 of file ast.h.
References attrib_list.
Referenced by tree_visitor::at_decl(), change(), declNode::change(), walk(), and declNode::walk().

typeNode * declNode::base_type ( bool TdefIndir ) const [virtual, inherited]

Return the base data type of a node.
This method differs from the Node::type() method in two respects. First, it follows some of the simple type inferences. For example, calling it on an idNode will return the type of its declaration. Second, the boolean argument indicates whether or not to follow typedef links.

Parameters:

TdefIndir pass true to follow typedefs to their definitions.

Reimplemented from Node.
Definition at line 467 of file declnode.cc.
References typeNode::base_type(), and declNode::type().
Referenced by procNode::base_type().

void declNode::bitsize ( exprNode * bitsize ) [inline, inherited]

Define the bitsize for this declNode.
To set the bitsize of this declNode to be empty, call this method with a value of NULL.
Definition at line 1092 of file ast.h.

exprNode* declNode::bitsize ( ) const [inline, inherited]

Return this Node's bitsize.

Definition at line 1085 of file ast.h.
Referenced by vcgASTWalker::at_decl(), tree_visitor::at_decl(), change(), declNode::change(), output(), declNode::output(), subdeclNode(), walk(), and declNode::walk().

Node * subdeclNode::change ( Changer & the_changer,

bool redispatch = false

) [virtual]

Dispatch a Changer.
This abstract method works much the walker, but allows the tree to be changed.

Parameters:

the_changer the specific Changer object to use.

redispatch pass true to revisit parts of the tree that have changed.

Reimplemented from declNode.
Definition at line 162 of file subdeclnode.cc.
References Changer::at_subdecl(), declNode::attribs(), declNode::bitsize(), Changer::Both, Node::change(), change_list(), Changer::delete_old(), declNode::init(), Changer::order(), Changer::Order, Changer::Postorder, Changer::Preorder, and declNode::type().

virtual Node* subdeclNode::clone ( ) const [inline, virtual]

Clone the input node.
This is not a "deep" clone, so be careful. For a deep clone, use the ref_clone_changer class.

Returns:
a shallow copy of the node (no subtrees are copied).

Reimplemented from declNode.
Definition at line 1313 of file ast.h.
References subdeclNode().

void Node::coord ( const Coord coord ) [inline, inherited]

Set the source location.
This location should indicate the position in the source text that this Node represents, or Coord::Unknown if it does not represent any node in the source text.
It is not common to set the source location of a node. Currently, only the compiler error messages actually make use of it.

Parameters:

coord the new location.

Definition at line 245 of file ast.h.

Coord Node::coord ( ) const [inline, inherited]

Get the source location.
The Coord class holds a location in the input source (file, line, position). During parsing, each AST node created records the position of the source text that it represents. However, subsequent phases may create or change nodes, so no guarantee is given about how the source location corresponds to the original source text.

Returns:
the Coord structure indicating where the node came from in the source file.

Definition at line 232 of file ast.h.
Referenced by funcNode::add_parameter_types(), Unify_Structure::all_str(), Pointers::analyze_procedure(), semcheck_expr_visitor::at_binary(), id_lookup_walker::at_binary(), ExpressionDismantle::at_binary(), ArrowDismantle::at_binary(), SelectionDismantle::at_binary(), set_container_walker::at_break(), BreakContinueChanger::at_break(), UnificationBasedPtr::at_call(), semcheck_expr_visitor::at_call(), NodeLocator::at_call(), id_lookup_walker::at_call(), ExpressionDismantle::at_call(), set_container_walker::at_case(), constantsChanger::at_conditiongoto(), set_container_walker::at_continue(), BreakContinueChanger::at_continue(), NodeLocator::at_decl(), id_lookup_walker::at_decl(), InitializerDismantle::at_decl(), LoopDismantle::at_do(), enum_value_walker::at_enum(), NodeLocator::at_expr(), ExpressionDismantle::at_exprstmt(), LoopDismantle::at_for(), goto_label_walker::at_goto(), Linker::at_id(), id_lookup_walker::at_id(), SelectionDismantle::at_if(), goto_label_walker::at_label(), id_lookup_walker::at_proc(), ReturnDismantle::at_proc(), ReturnDismantle::at_return(), NodeLocator::at_stmt(), UnificationBasedPtr::at_suespec(), semcheck_walker::at_suespec(), SelectionDismantle::at_switch(), TernaryDismantle::at_ternary(), SizeofChanger::at_threeAddr(), AllocSizeChanger::at_unary(), ExpressionDismantle::at_unary(), LoopDismantle::at_while(), Pointers::call_operator(), semcheck_expr_visitor::check_binary(), semcheck_expr_visitor::check_unary(), UnificationBasedPtr::compatible_type(), procNode::define(), exprstmtNode::exprstmtNode(), typeNode::finish(), InitializerDismantle::init_array(), InitializerDismantle::init_scalar(), InitializerDismantle::init_struct(), function_inline::inliner(), exprNode::integral_promotions(), UnificationBasedPtr::make_compatible(), reachingDefinitionsWalker::make_ud_chains(), Unify_Structure::map_str(), primNode::merge_in(), metaexprNode::metaexprNode(), metastmtNode::metastmtNode(), vcgCCGWalker::node_label(), vcgASTWalker::node_label(), vcgCCGWalker::node_title(), vcgASTWalker::node_title(), DismantleUtil::Not(), Externals_table::notify_exit_scope(), Labels_table::notify_exit_scope(), Identifiers_table::notify_exit_scope(), Pointers::pass_parameters(), vcgCCGWalker::print_edge(), vcgASTWalker::print_edge(), vcgCCGWalker::print_node(), vcgASTWalker::print_node(), stmtLocation::print_path(), procNode::procNode(), NodeInfo::readCall(), NodeInfo::readDecl(), NodeInfo::readExprOrStmt(), NodeInfo::readsuef(), Pointers::record_external_inputs_and_outputs(), P::run(), Tags_table::shadow(), Identifiers_table::shadow(), memoryBlock::top_most_containers(), suespecNode::update(), exprNode::usual_arithmetic_conversions(), CBZ::WarnAboutPrecedence(), NodeInfo::writeDecl(), NodeInfo::writeExpr(), NodeInfo::writeProc(), NodeInfo::writeStmt(), and NodeInfo::writeType().

void declNode::dataflow ( FlowVal * v,

FlowProblem & fp

) [virtual, inherited]

Run the dataflow analyzer.
Each subclass overrides this method to define it's semantics for dataflow analysis. It alters the input flow value to reflect the effect of the node within the given flow problem, calling dataflow() on it's subtrees as necessary. See the dataflow analysis documentation for more information.

Parameters:

v the flow value to pass through the node.

fp the flow problem (specifying the transfer functions).

Implements Node.
Definition at line 580 of file declnode.cc.
References Node::dataflow(), FlowProblem::flow_decl(), FlowProblem::forward(), and declNode::init().

typeNode * Node::datatype ( ) const [inherited]

Call base_type() with the argument true.

Definition at line 157 of file node.cc.
References Node::base_type().
Referenced by funcNode::is_void_args().

typeNode * Node::datatype_superior ( ) const [inherited]

Call base_type() with the argument false.

Definition at line 162 of file node.cc.
References Node::base_type().

void declNode::decl_location ( Decl_location loc ) [inline, inherited]

Set the syntactic context in which this declaration occured.

Definition at line 1040 of file ast.h.

Decl_location declNode::decl_location ( ) const [inline, inherited]

Return a Decl_location indicating the syntactic context in which this declaration occured.

Definition at line 1035 of file ast.h.
Referenced by id_lookup_walker::at_call(), UnificationBasedPtr::at_decl(), print_walker::at_decl(), print_tree_visitor::at_decl(), id_lookup_walker::at_decl(), StaticToGlobalDismantle::at_decl(), FlattenDismantle::at_decl(), Linker::at_id(), AllocToMemWalker::at_operand(), id_lookup_walker::at_proc(), StaticToGlobalDismantle::at_proc(), findVarAssign::at_threeAddr(), memoryModel::create_memory_object(), memoryBlock::dot(), UnificationBasedPtr::ecr1(), idNode::eval(), lir_gen_walker::gen_arg_decl(), lir_gen_walker::gen_global_decl(), lir_gen_walker::gen_load(), lir_gen_walker::gen_local_decl(), lir_gen_walker::gen_store(), briggs_reg_alloc::genSpillCode(), CBZ::get_temp_var(), declNode::inherit_type(), InitializerDismantle::init_scalar(), function_inline::inliner(), funcNode::is_compatible_with(), procedureInfo::is_library_routine(), Linker::link(), briggs_reg_alloc::loadSymReg(), ipConstantPropagation::lookup(), memoryModel::lookup_variable(), UnificationBasedPtr::mergeOperand(), memoryBlock::name(), SSA::need_ssa(), LirUtil::new_auto_decl(), LirUtil::new_static_global(), DismantleUtil::new_temp_decl(), Externals_table::notify_exit_scope(), Identifiers_table::notify_exit_scope(), output(), declNode::output(), SSA::place_phi_functions(), procNode::procNode(), constantAnalyzer::rebuild_flowvalue(), Pointers::record_external_inputs_and_outputs(), SSA::rename_all_variables(), Pointers::self_assignment(), and memoryBlock::top_most_containers().

string declNode::decl_location_name ( Decl_location dl ) [static, inherited]

Return a string value containing the C code for this Declaration's location.

Definition at line 526 of file declnode.cc.
References declNode::BLOCK, declNode::ENUM, declNode::FORMAL, declNode::PROC, declNode::SU, and declNode::TOP.
Referenced by print_walker::at_decl(), and print_tree_visitor::at_decl().

void declNode::finish ( Storage_class sc ) [inherited]

Definition at line 170 of file declnode.cc.
References typeNode::finish(), declNode::storage_class(), declNode::type(), declNode::TYPEDEF, and typeNode::verify_sue_complete().
Referenced by declNode::finish_and(), procNode::procNode(), and declNode::set_type().

declNode * declNode::finish_and ( Storage_class sc ) [inherited]

Definition at line 186 of file declnode.cc.
References declNode::finish().

void Node::gen ( FlowVal * g ) [inline, inherited]

Set the "gen" flow value.
This value is used in dataflow analyses to store information that is generated at this node. Note that each node has exactly one "gen" flow value.
In order to set the flow value to be empty, call this method with a value of NULL.

Parameters:

g the new gen flow value.

Definition at line 299 of file ast.h.

FlowVal* Node::gen ( ) const [inline, inherited]

Get the "gen" flow value.
This value is used in dataflow analyses to store information that is generated at this node. Note that each node has exactly one "gen" flow value.

Returns:
the "gen" flow value.

Definition at line 286 of file ast.h.

typeNode* declNode::get_type ( ) [inline, inherited]

Return this declNode's base C data type, and set the base C data type to be empty.

Definition at line 1013 of file ast.h.
Referenced by declNode::set_type_and().

void declNode::inc_references ( ) [inline, inherited]

Increment the number of identifier nodes that point to this declaration.

Definition at line 1068 of file ast.h.
Referenced by id_lookup_walker::at_binary(), and id_lookup_walker::at_call().

int subdeclNode::index ( ) const [inline]

Definition at line 1286 of file ast.h.
Referenced by name_with_index().

void declNode::inherit_type ( decl_list * others,

ScopeState redeclare

) [inherited]

Definition at line 419 of file declnode.cc.
References ref_clone_changer::clone(), declNode::decl_location(), typeNode::deep_base_type(), declNode::set_type(), declNode::storage_class(), and declNode::type().
Referenced by declNode::inherit_type_and().

declNode * declNode::inherit_type_and ( decl_list * others,

ScopeState redeclare

) [inherited]

Definition at line 433 of file declnode.cc.
References declNode::inherit_type().

void declNode::init ( exprNode * init ) [inline, inherited]

Define the AST node used to initialize the variable declared by this declNode.
To set the initializer of this declNode to be empty, call this method with a value of NULL.
Definition at line 1081 of file ast.h.

exprNode* declNode::init ( ) const [inline, inherited]

Return the AST used to initialize the variable declared by this declNode.

Definition at line 1073 of file ast.h.
Referenced by vcgASTWalker::at_decl(), UnificationBasedPtr::at_decl(), tree_visitor::at_decl(), semcheck_walker::at_decl(), InitializerDismantle::at_decl(), enum_value_walker::at_enum(), semcheck_walker::at_suespec(), change(), declNode::change(), declNode::dataflow(), idNode::eval(), lir_gen_walker::gen_global_decl(), lir_gen_walker::gen_local_decl(), memoryModel::generate_array_elements_for(), InitializerDismantle::init_scalar(), function_inline::inliner(), ipConstantPropagation::lookup(), memoryModel::lookup_variable(), output(), declNode::output(), constantAnalyzer::rebuild_flowvalue(), declNode::set_init(), subdeclNode(), Unify_ECR::Unify_ECR(), walk(), and declNode::walk().

bool declNode::is_redundant_extern ( ) const [inline, inherited]

Return true iff this declaration is a redundant extern declaration.
Redundant extern declarations are allowed in C.
Definition at line 1058 of file ast.h.
Referenced by declNode::set_init().

void Node::kill ( FlowVal * k ) [inline, inherited]

Set the "kill" flow value.
This value is used in dataflow analyses to store information that is killed at this node. Note that each node has exactly one "kill" flow value.
To set the flow value to be empty, call this method with a value of NULL.

Parameters:

k the new kill flow value.

Definition at line 322 of file ast.h.

FlowVal* Node::kill ( ) const [inline, inherited]

Get the "kill" flow value.
This value is used in dataflow analyses to store information that is killed at this node. Note that each node has exactly one "kill" flow value.

Returns:
the "kill" flow value.

Definition at line 309 of file ast.h.

void declNode::merge_attribs ( attrib_list * attribs ) [inherited]

Add each attribute in the given attribute list to this declNode's attribute list.

Definition at line 501 of file declnode.cc.
References declNode::_attribs.

void declNode::modify_type ( typeNode * the_type ) [inherited]

Definition at line 138 of file declnode.cc.
References typeNode::set_base_type(), and declNode::type().
Referenced by declNode::modify_type_and(), and declNode::set_type().

declNode * declNode::modify_type_and ( declNode * the_type ) [inherited]

Definition at line 152 of file declnode.cc.
References declNode::modify_type(), and declNode::type().

declNode * declNode::modify_type_and ( typeNode * the_type ) [inherited]

Definition at line 146 of file declnode.cc.
References declNode::modify_type().

void declNode::name ( string name ) [inline, inherited]

Set the name of the variable declared by this declNode.

Definition at line 1030 of file ast.h.

string& declNode::name ( ) [inline, inherited]

Return the name of the variable declared by this declNode.

Definition at line 1025 of file ast.h.
Referenced by funcNode::add_parameter_types(), procedureDB::add_procedure(), memoryBlock::add_to_flow_sensitive_list(), Unify_Structure::all_str(), function_inline::already_inlined_calls(), DefUseWalker::at_basicblock(), UnificationBasedPtr::at_decl(), print_walker::at_decl(), print_tree_visitor::at_decl(), NodeLocator::at_decl(), name_mangle_walker::at_decl(), AllocToMemWalker::at_decl(), id_lookup_walker::at_decl(), FlattenDismantle::at_decl(), name_mangle_walker::at_id(), vcgCCGWalker::at_proc(), UnitWalker::at_proc(), TreeChecker::at_proc(), Optimizer::at_proc(), name_mangle_walker::at_proc(), id_lookup_walker::at_proc(), cfg_changer::at_proc(), LIR::BeginProc(), procedureDB::build(), Linker::clear(), LirInst::contents_str(), memoryModel::create_memory_object(), Linker::create_synthetic(), LIR::DeclareGlobal(), LIR::DeclareLocal(), Dominators::Dominators(), memoryBlock::dot(), UnificationBasedPtr::ecrField(), LIR::EndProc(), vcgWalker::excluded(), findmain(), lir_gen_walker::gen_global_decl(), memoryModel::generate_array_elements_for(), memoryModel::generate_su_field(), memoryBlock::generate_su_field_name(), NodeInfo::getType(), idNode::idNode(), memoryModel::initialize_struct(), function_inline::inliner(), function_inline::inlocalstack(), Pointers::is_allocation(), Pointers::is_deallocation(), Pointers::is_exit(), memoryBlock::is_in_flow_sensitive_list(), Pointers::is_reallocation(), Pointers::is_va_arg(), Pointers::is_va_start(), Linker::link(), lir_gen_walker::load_const(), Unify_Structure::map_str(), procedureInfo::name(), memoryBlock::name(), name_with_index(), Externals_table::notify_exit_scope(), Identifiers_table::notify_exit_scope(), output(), declNode::output(), Pointers::pass_parameters(), SSA::place_one_phi(), procedureInfo::print(), stmtLocation::print_callsite(), UnificationBasedPtr::print_ecr(), procLocation::print_path(), Pointers::procedure_call(), procedureInfo::procedureInfo(), Linker::process_call(), NodeInfo::readProc(), Pointers::record_external_inputs_and_outputs(), StaticToGlobalDismantle::rename_decl(), RequiresGatherer::requires(), pointers_phase::run(), declNode::set_type(), Identifiers_table::shadow(), procedureInfo::stats(), memoryBlock::stats(), Pointers::struct_union_assignment(), memoryBlock::top_most_containers(), NodeInfo::writeDecl(), and NodeInfo::writeProc().

string subdeclNode::name_with_index ( )

Get the name with index.
This method returns the name of the declaration, with its index appended. For example, when this method is called on the subdeclaration for , the string "x" will be returned.

Returns:
the name with the index appended

Definition at line 65 of file subdeclnode.cc.
References index(), and declNode::name().
Referenced by output(), and SSA::rename_all_variables().

typeNode * declNode::no_tdef_type ( ) [inherited]

Return the type.
Return the type after following any typedefs to the real type.

Returns:
the type

Definition at line 476 of file declnode.cc.
References typeNode::follow_tdefs(), and declNode::type().
Referenced by Pointers::assignment_operator(), UnificationBasedPtr::at_call(), UnificationBasedPtr::at_decl(), InitializerDismantle::at_decl(), UnificationBasedPtr::at_proc(), memoryModel::create_memory_object(), Pointers::determine_call_targets(), memoryBlock::dot(), Pointers::dot_operator(), Pointers::eval(), lir_gen_walker::gen_arg_decl(), lir_gen_walker::gen_local_decl(), memoryModel::generate_array_elements_for(), InitializerDismantle::init_scalar(), memoryModel::lookup_variable(), SSA::need_ssa(), Pointers::pass_parameters(), SSA::place_one_phi(), Pointers::star_operator(), Pointers::struct_union_assignment(), and memoryBlock::top_most_containers().

virtual declNode* subdeclNode::original ( ) [inline, virtual]

SSA original declaration.
For use with subdeclNode when the code is in SSA form. This method returns the original declaration from which the sub-declaration was derived.

Returns:
the original declaration

Reimplemented from declNode.
Definition at line 1285 of file ast.h.
References declNode::original().

void subdeclNode::output ( output_context & ct,

Node * par

) [virtual]

Generate C code.
Each subclass overrides this method to define how to produce the output C code. To use this method, pass an output_context and a null parent.

Parameters:

ct the output context which describes the formatting.

par the parent node (or null, if at the top of a subtree).

Reimplemented from declNode.
Definition at line 113 of file subdeclnode.cc.
References declNode::bitsize(), declNode::BLOCK, declNode::decl_location(), declNode::Decl_location, declNode::ENUM, declNode::FORMAL, declNode::init(), declNode::name(), name_with_index(), output_context::new_line(), exprNode::output(), typeNode::output_type(), output_context::space(), declNode::storage_class(), declNode::storage_class_name(), declNode::SU, declNode::TOP, declNode::type(), and declNode::UNKNOWN.

void Node::parenthesized ( bool paren ) [inline, inherited]

Set the parenthesized boolean.
This boolean determines whether this expression will be parenthesized in the output. Note that that the parentheses will always be added when they are needed to disambiguate the output. This variable only controls the use of "un-necessary" parentheses.

Parameters:

paren the new value of the parenthesized boolean.

Definition at line 264 of file ast.h.

bool Node::parenthesized ( ) const [inline, inherited]

Get the parenthesized boolean.

Returns:
true if the construct corresponding to this Node was parenthesized in the source.

Definition at line 252 of file ast.h.
Referenced by exprNode::parens(), and CBZ::WarnAboutPrecedence().

text_list& defNode::pragmas ( ) [inline, inherited]

Definition at line 720 of file ast.h.
References text_list.
Referenced by procNode::change(), declNode::change(), declNode::output(), procNode::walk(), and declNode::walk().

const id_list& declNode::ref_list ( ) const [inline, inherited]

Definition at line 1105 of file ast.h.
References id_list.

id_list& declNode::ref_list ( ) [inline, inherited]

Definition at line 1104 of file ast.h.
References id_list.
Referenced by ref_clone_changer::at_decl(), print_walker::at_decl(), FlattenDismantle::at_decl(), idNode::decl(), and StaticToGlobalDismantle::rename_decl().

void declNode::references ( int references ) [inline, inherited]

Set the number of idNodes that point to this declaration.

Definition at line 1102 of file ast.h.

int declNode::references ( ) const [inline, inherited]

Return the number of idNodes that point to this declaration.

Definition at line 1097 of file ast.h.
Referenced by id_lookup_walker::at_decl(), Externals_table::notify_exit_scope(), and Identifiers_table::notify_exit_scope().

void Node::report ( ) [static, inherited]

Report node count statistics.
The code can be configured to gather statistics about node usage according to type. This method prints the current state of that accounting information to standard out.
Definition at line 184 of file node.cc.
References Node::_count, Node::_t_count, Array, Attrib, Binary, Block, Break, Call, Case, Cast, Comma, Const, Continue, Decl, Do, Enum, Expr, For, Func, Goto, Id, If, Initializer, Label, Prim, Proc, Ptr, Return, Struct, sueSpec, Switch, Tdef, Ternary, Text, Unary, Undeclared, Union, and While.

void declNode::set_init ( exprNode * init ) [inherited]

Definition at line 443 of file declnode.cc.
References declNode::_init, declNode::init(), declNode::is_redundant_extern(), and declNode::set_redundant_extern().
Referenced by declNode::set_init_and().

declNode * declNode::set_init_and ( exprNode * init ) [inherited]

Definition at line 457 of file declnode.cc.
References declNode::set_init().

void declNode::set_redundant_extern ( bool v ) [inline, inherited]

Set whether this declaration is a redundant extern declaration.

Definition at line 1063 of file ast.h.
Referenced by declNode::set_init().

void declNode::set_type ( typeNode * the_type,

Storage_class sc,

ScopeState redeclare

) [inherited]

Definition at line 197 of file declnode.cc.
References CBZ::current_unit, declNode::finish(), SymbolTable< declNode * >::insert(), typeNode::is_derived(), declNode::modify_type(), declNode::name(), declNode::storage_class(), declNode::TYPEDEF, and unitNode::types().
Referenced by declNode::inherit_type(), and declNode::set_type_and().

declNode * declNode::set_type_and ( declNode * the_decltype,

Storage_class sc,

ScopeState redeclare

) [inherited]

Definition at line 406 of file declnode.cc.
References declNode::get_type(), and declNode::set_type().

declNode * declNode::set_type_and ( typeNode * the_type,

Storage_class sc,

ScopeState redeclare

) [inherited]

Definition at line 400 of file declnode.cc.
References declNode::set_type().

void declNode::storage_class ( Storage_class sc ) [inline, inherited]

Set the storage class of the variable declared by this declNode.

Definition at line 1050 of file ast.h.

Storage_class declNode::storage_class ( ) const [inline, inherited]

Return the storage class of the variable declared by this declNode.

Definition at line 1045 of file ast.h.
Referenced by UnificationBasedPtr::at_decl(), print_walker::at_decl(), print_tree_visitor::at_decl(), name_mangle_walker::at_decl(), id_lookup_walker::at_decl(), StaticToGlobalDismantle::at_decl(), has_struct_walker::at_decl(), findVarAssign::at_threeAddr(), declNode::finish(), lir_gen_walker::gen_global_decl(), lir_gen_walker::gen_local_decl(), declNode::inherit_type(), Identifiers_table::is_a_type(), Linker::link(), memoryModel::lookup_variable(), SSA::need_ssa(), Externals_table::notify_exit_scope(), Identifiers_table::notify_exit_scope(), output(), declNode::output(), SSA::place_phi_functions(), procNode::procNode(), StaticToGlobalDismantle::rename_decl(), RequiresGatherer::requires(), and declNode::set_type().

string declNode::storage_class_name ( Storage_class sc ) [static, inherited]

Return a string value containing the C code for this Declaration's storage class.

Definition at line 513 of file declnode.cc.
References declNode::AUTO, declNode::EXTERN, declNode::REGISTER, declNode::STATIC, and declNode::TYPEDEF.
Referenced by print_walker::at_decl(), print_tree_visitor::at_decl(), output(), and declNode::output().

Storage_location& declNode::storage_location ( ) [inline, inherited]

Returns a reference to the storage location for this data.

See also:
_storage_location

Definition at line 1125 of file ast.h.
Referenced by procNode::alloc_stack_local(), storage_alloc::assign_register(), LIR::DeclareLocal(), asm_gen_walker::doCalleeSave(), asm_gen_walker::doCallerSave(), lir_gen_walker::gen_arg_decl(), lir_gen_walker::gen_global_decl(), lir_gen_walker::gen_local_decl(), briggs_reg_alloc::genSpillCode(), storage_alloc::get_temp_var(), lir_gen_walker::load_global_addr(), lir_gen_walker::load_global_value(), lir_gen_walker::load_global_var(), lir_gen_walker::load_stack_addr(), lir_gen_walker::load_stack_value(), lir_gen_walker::load_stack_var(), lir_gen_walker::store_global(), and lir_gen_walker::store_stack().

NodeType Node::typ ( ) const [inline, inherited]

Get the node type.
This has nothing to do with types in the source code. It indicates what kind of AST node this is (e.g., a unary expression node or a while node).

Returns:
the node type.

Definition at line 218 of file ast.h.
References NodeType.
Referenced by declNode::add_parameter_types(), Pointers::analyze_procedure(), SSA::assignment(), Pointers::assignment_operator(), Assignment_walker::at_binary(), semcheck_expr_visitor::at_binary(), id_lookup_walker::at_binary(), ExpressionDismantle::at_binary(), constantAnalyzer::at_binary(), UnificationBasedPtr::at_call(), TreeChecker::at_call(), semcheck_expr_visitor::at_call(), NodeLocator::at_call(), Linker::at_call(), id_lookup_walker::at_call(), ExpressionDismantle::at_call(), ExpressionDismantle::at_cast(), constantAnalyzer::at_cast(), ExpressionDismantle::at_comma(), constantFoldingChanger::at_conditiongoto(), constantPropChanger::at_conditiongoto(), constantAnalyzer::at_const(), vcgASTWalker::at_decl(), UnificationBasedPtr::at_decl(), name_mangle_walker::at_decl(), AllocToMemWalker::at_decl(), id_lookup_walker::at_decl(), InitializerDismantle::at_decl(), remove_stale_type_walker::at_expr(), NodeLocator::at_expr(), constantPropChanger::at_expr(), FlattenDismantle::at_goto(), Linker::at_id(), callGraph::at_id(), CFS_Changer::at_if(), UnificationBasedPtr::at_initializer(), TreeChecker::at_label(), FlattenDismantle::at_label(), UnificationBasedPtr::at_proc(), LivenessWalker::at_proc(), FlattenDismantle::at_proc(), DefUseWalker::at_proc(), cfg_changer::at_proc(), unreachableCodeRemover::at_proc(), TreeChecker::at_return(), constantAnalyzer::at_sizeof(), NodeLocator::at_stmt(), print_walker::at_sue(), print_tree_visitor::at_sue(), vcgCCGWalker::at_threeAddr(), Linker::at_threeAddr(), identify_inlinees::at_threeAddr(), function_inline::at_threeAddr(), W::at_type(), ExpressionDismantle::at_unary(), fixPointerWalker::at_unary(), constantAnalyzer::at_unary(), callNode::base_type(), NodeInfo::canonical(), ipConstant::cast_operator(), semcheck_expr_visitor::check_binary(), semcheck_expr_visitor::check_unary(), UnificationBasedPtr::compatible_type(), memoryModel::create_memory_object(), UnificationBasedPtr::create_synthetic_proc(), NodeInfo::def_type(), gcWalker::delete_nodes(), Pointers::determine_call_targets(), DFPreds::DFPreds(), DominanceFrontiers::DominanceFrontiers(), memoryBlock::dot(), Pointers::dot_operator(), UnificationBasedPtr::ecr1(), typeNode::equal_to(), Pointers::eval(), castNode::eval(), typeNode::finish(), typeNode::follow_tdefs(), memoryModel::generate_array_elements_for(), DefUseWalker::get_def(), DefUseWalker::get_uses(), Register::getRegRetVal(), NodeInfo::getType(), memoryModel::initialize_struct(), function_inline::inliner(), typeNode::integral_promotions(), exprNode::integral_promotions(), labelNode::is_undeclared(), UnificationBasedPtr::is_va_list(), Pointers::is_va_list(), SSA::lhs(), Linker::link(), lir_gen_walker::load_global_value(), lir_gen_walker::load_stack_value(), LocalCopyPropChanger::local_copy_prop(), memoryModel::lookup_variable(), arch_info::make_template_replacements(), reachingDefinitionsWalker::make_ud_chains(), SSA::need_ssa(), vcgCCGWalker::node_label(), vcgCCGWalker::node_name(), vcgASTWalker::node_name(), vcgCCGWalker::node_title(), NodeInfo::nodeIndex(), operandNode::noncast_type(), DismantleUtil::Not(), Externals_table::notify_exit_scope(), Identifiers_table::notify_exit_scope(), stmtNode::output(), operandNode::output_expr(), blockNode::output_stmt(), sueNode::output_type(), ptrNode::output_type(), Pointers::pass_parameters(), SSA::phi(), SSA::place_one_phi(), vcgASTWalker::print_edge(), vcgCCGWalker::print_node(), vcgASTWalker::print_node(), procedureInfo::procedureInfo(), procNode::procNode(), LocalCopyPropChanger::prop(), LocalCopyPropChanger::prop_expr(), arrayNode::qualified_equal_to(), NodeInfo::readCall(), NodeInfo::readDecl(), NodeInfo::readExprOrStmt(), NodeInfo::readProc(), NodeInfo::readsuef(), NodeInfo::readType(), Unreachable::remove(), P::run(), dfpreds_phase::run(), ssa_phase::run(), pointers_phase::run(), SSA::search(), sueNode::set_name_fields(), Register::setType(), Unify_Size::sizeOf(), Unify_Size::sizeOfAssign(), SSA::SSA(), Pointers::star_operator(), lir_gen_walker::store_global(), lir_gen_walker::store_stack(), Pointers::struct_union_assignment(), blockNode::toBlock(), memoryBlock::top_most_containers(), P::type_name(), NodeInfo::type_name(), Unify_ECR::Unify_ECR(), typeNode::unwind_tdefs(), suespecNode::update(), typeNode::usual_arithmetic_conversions(), exprNode::usual_arithmetic_conversions(), binaryNode::walk(), CBZ::WarnAboutPrecedence(), NodeInfo::writeCall(), NodeInfo::writeExpr(), NodeInfo::writeProc(), NodeInfo::writeStmt(), and NodeInfo::writeType().

void declNode::type ( typeNode * the_type ) [inline, inherited]

Set this declNode's base C data type.
To set the data type to be empty, call this method with a value of NULL.
Definition at line 1020 of file ast.h.

void subdeclNode::visit ( Visitor * the_visitor ) [virtual]

Dispatch a Visitor.
This abstract method is the entry point for the visitor design pattern. Each node subclass defines a visit() method that calls the appropriate at_ method in the visitor. For more information see the Visitor documentation.

Parameters:

the_visitor the specific Visitor object to use.

Reimplemented from declNode.
Definition at line 78 of file subdeclnode.cc.
References Visitor::at_subdecl().

void subdeclNode::walk ( Walker & the_walker ) [virtual]

Dispatch a Walker.
This abstract method works much like the visitor, but instead walks the entire underlying subtree calling the appropriate at_ method at each node. For more information see the Walker documentation.

Parameters:

the_walker the specific Walker object to use.

Reimplemented from declNode.
Definition at line 83 of file subdeclnode.cc.
References Walker::at_subdecl(), declNode::attribs(), declNode::bitsize(), Walker::Both, Walker::depth(), declNode::init(), list_walker(), Walker::order(), Walker::Order, Walker::Postorder, Walker::Preorder, Walker::Subtree, declNode::type(), and Node::walk().

Member Data Documentation

int subdeclNode::_index [private]

Definition at line 1257 of file ast.h.

REF declNode* subdeclNode::_original [private]

Definition at line 1256 of file ast.h.

map< Node *, bool > Node::deleted_nodes [static, inherited]

Definition at line 116 of file node.cc.
Referenced by gcWalker::delete_nodes(), and Node::~Node().

bool Node::mark [inherited]

Definition at line 170 of file ast.h.
Referenced by gcWalker::at_binary(), gcWalker::at_node(), gcWalker::delete_nodes(), and SymbolTable< T >::mark_nodes().

node_list Node::nodes [static, inherited]

Definition at line 115 of file node.cc.
Referenced by gcWalker::delete_nodes(), gcWalker::gcWalker(), and Node::Node().

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

Generated on August 27, 2003
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subdeclNode Class Reference [The AST nodes]

Garbage collection.

Public Types

Public Member Functions