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blockNode Class Reference
[The AST nodes]

Compund statement or block. More...

#include <ast.h>

Inheritance diagram for blockNode:

stmtNode Node basicblockNode List of all members.

Garbage collection.

bool mark
node_list nodes
map< Node *, bool > deleted_nodes

Public Member Functions

 blockNode (decl_list *decls, stmt_list *stmts, const Coord left_coord=Coord::Unknown, const Coord right_brace=Coord::Unknown)
 Create a new block.

virtual ~blockNode ()
 Destroy a blockNode.

typeNodebase_type (bool TdefIndir) const
 Return the base data type of a node.

virtual void dataflow (FlowVal *v, FlowProblem &fp)
 Run the dataflow analyzer.

virtual Nodeclone () const
 Clone the input node.

virtual void output_stmt (output_context &ct, Node *par)
 Output a statement.

virtual void output (output_context &ct, Node *par)
 Generate C code.

void output_comment (output_context &ct)
virtual typeNodetype () const
 Return the node data type.

typeNodedatatype () const
 Call base_type() with the argument true.

typeNodedatatype_superior () const
 Call base_type() with the argument false.

Accessors
Methods to get and set fields in the class.

decl_listdecls ()
const decl_listdecls () const
stmt_liststmts ()
const stmt_liststmts () const
Coord right_brace () const
void right_brace (const Coord right_brace)
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 Nodechange (Changer &the_changer, bool redispatch=false)
 Dispatch a Changer.

Accessors
Methods to get and set fields in the class.

string & comment ()
FlowValat_exit () const
void at_exit (FlowVal *ae)
text_listpragmas ()
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_listannotations ()
 Get the annotations list.

FlowValgen () const
 Get the "gen" flow value.

void gen (FlowVal *g)
 Set the "gen" flow value.

FlowValkill () const
 Get the "kill" flow value.

void kill (FlowVal *k)
 Set the "kill" flow value.


Static Public Member Functions

blockNode * toBlock (stmtNode *stmt, Coord coord)
 Convert to block.

void report ()
 Report node count statistics.


Private Attributes

TREE decl_list _decls
 the local declarations

TREE stmt_list _stmts
 the statements

Coord _right_brace
 the location of the right curly brace


Detailed Description

Compund statement or block.

This class represents a curly-brace delimited compound statement or statement block. It generally introduces a new scope, allowing new declarations as well as code. It is used as the top-level container for procedure bodies, branch bodies, loop bodies, etc. The general form is:

  {
    <declarations>

    <statements>
  }
  

The NodeType is Block.

Definition at line 4418 of file ast.h.


Constructor & Destructor Documentation

blockNode::blockNode decl_list   decls,
stmt_list   stmts,
const Coord    left_coord = Coord::Unknown,
const Coord    right_brace = Coord::Unknown
 

Create a new block.

The new block has the given list of declarations and statements. In both bases, the actual declarations and statements are removed from the lists, and the lists are deleted. Null may be passed for either argument.

Parameters:
decls the list of declarations
stmts the list of statements
coord the location of the left curly brace in the source file.
coord the location of the right curly brace in the source file.

Definition at line 44 of file blocknode.cc.

References _decls, _stmts, and Block.

Referenced by clone(), and toBlock().

blockNode::~blockNode   [virtual]
 

Destroy a blockNode.

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

Definition at line 232 of file blocknode.cc.


Member Function Documentation

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.

void stmtNode::at_exit FlowVal   ae [inline, inherited]
 

Reimplemented in basicblockNode.

Definition at line 4373 of file ast.h.

FlowVal* stmtNode::at_exit   const [inline, inherited]
 

Reimplemented in basicblockNode.

Definition at line 4372 of file ast.h.

Referenced by init_flowproblem_walker::at_stmt(), whileNode::dataflow(), switchNode::dataflow(), returnNode::dataflow(), forNode::dataflow(), doNode::dataflow(), and breakNode::dataflow().

typeNode * blockNode::base_type bool    TdefIndir const [virtual]
 

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 83 of file blocknode.cc.

Node * blockNode::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.

Implements Node.

Reimplemented in basicblockNode.

Definition at line 203 of file blocknode.cc.

References Changer::at_block(), Changer::Both, change_list(), decls(), Changer::order(), Changer::Order, Changer::Postorder, Changer::Preorder, and stmts().

Referenced by SelectionDismantle::andand_oror_in_expr(), LoopDismantle::at_do(), ExpressionDismantle::at_exprstmt(), LoopDismantle::at_for(), TernaryDismantle::at_stmt(), LoopDismantle::at_while(), whileNode::change(), switchNode::change(), procNode::change(), labelNode::change(), ifNode::change(), forNode::change(), doNode::change(), and caseNode::change().

virtual Node* blockNode::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).

Implements Node.

Reimplemented in basicblockNode.

Definition at line 4535 of file ast.h.

References blockNode().

string& stmtNode::comment   [inline, inherited]
 

Definition at line 4368 of file ast.h.

Referenced by DefUseWalker::at_basicblock(), reachingGenKillWalker::at_proc(), copyPropChanger::at_proc(), deadcodeChanger::at_threeAddr(), LivenessComments::comment_stmt(), loopTree::depthFirstSearch(), loopTree::findBody(), stmtNode::output_comment(), and Dominators::print().

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 blockNode::dataflow FlowVal   v,
FlowProblem   fp
[virtual]
 

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 120 of file blocknode.cc.

References dataflow_forward_list(), dataflow_reverse_list(), decls(), FlowProblem::flow_block(), FlowProblem::forward(), and stmts().

Referenced by whileNode::dataflow(), switchNode::dataflow(), procNode::dataflow(), labelNode::dataflow(), ifNode::dataflow(), forNode::dataflow(), doNode::dataflow(), and caseNode::dataflow().

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().

const decl_list& blockNode::decls   const [inline]
 

Definition at line 4504 of file ast.h.

References decl_list.

decl_list& blockNode::decls   [inline]
 

Definition at line 4503 of file ast.h.

References decl_list.

Referenced by print_walker::at_basicblock(), ExpressionDismantle::at_binary(), vcgASTWalker::at_block(), tree_visitor::at_block(), print_walker::at_block(), print_tree_visitor::at_block(), ExpressionDismantle::at_call(), StaticToGlobalDismantle::at_decl(), FlattenDismantle::at_decl(), SelectionDismantle::at_if(), LabelDismantle::at_label(), LivenessWalker::at_proc(), ReturnDismantle::at_proc(), UnusedDeclarationCleanupChanger::at_proc(), SelectionDismantle::at_switch(), ExpressionDismantle::at_unary(), change(), basicblockNode::change(), dataflow(), CBZ::get_temp_var(), function_inline::inliner(), output_stmt(), SSA::rename_all_variables(), Pointers::setup_va_list_variables(), walk(), and basicblockNode::walk().

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.

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 stmtNode::output output_context   ct,
Node   par
[virtual, inherited]
 

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).

Implements Node.

Definition at line 55 of file stmtnode.cc.

References Block, output_context::new_line(), stmtNode::output_comment(), stmtNode::output_stmt(), and Node::typ().

Referenced by Pointers::analyze_procedure(), deadcodeChanger::at_threeAddr(), procedureInfo::block_position(), procNode::output(), whileNode::output_stmt(), switchNode::output_stmt(), loopTreeNode::output_stmt(), labelNode::output_stmt(), ifNode::output_stmt(), forNode::output_stmt(), doNode::output_stmt(), caseNode::output_stmt(), precisionAnalyzer::record(), and precisionAnalyzer::report().

void stmtNode::output_comment output_context   ct [inherited]
 

Definition at line 65 of file stmtnode.cc.

References stmtNode::comment(), output_context::indent_in(), output_context::indent_out(), and output_context::new_line().

Referenced by stmtNode::output(), and output_stmt().

void blockNode::output_stmt output_context   ct,
Node   par
[virtual]
 

Output a statement.

Implements stmtNode.

Definition at line 144 of file blocknode.cc.

References Block, CBZ::current_unit, decls(), unitNode::enter_scope(), unitNode::exit_scope(), If, output_context::indent_in(), output_context::indent_out(), output_context::new_line(), NodeType, stmtNode::output_comment(), output_list(), Proc, stmts(), suespec_list_p, unitNode::suespecs(), unitNode::symbol_level(), and Node::typ().

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& stmtNode::pragmas   [inline, inherited]
 

Definition at line 4377 of file ast.h.

References text_list.

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 blockNode::right_brace const Coord    right_brace [inline]
 

Definition at line 4510 of file ast.h.

Coord blockNode::right_brace   const [inline]
 

Definition at line 4509 of file ast.h.

const stmt_list& blockNode::stmts   const [inline]
 

Definition at line 4507 of file ast.h.

References stmt_list.

stmt_list& blockNode::stmts   [inline]
 

Definition at line 4506 of file ast.h.

References stmt_list.

Referenced by SSA::add_phi_function(), Pointers::analyze_procedure(), SelectionDismantle::andand_oror_in_expr(), reachingDefinitionsWalker::at_basicblock(), reachingGenKillWalker::at_basicblock(), print_walker::at_basicblock(), LivenessWalker::at_basicblock(), DefUseWalker::at_basicblock(), ExpressionDismantle::at_binary(), vcgASTWalker::at_block(), tree_visitor::at_block(), print_walker::at_block(), print_tree_visitor::at_block(), InitializerDismantle::at_block(), ExpressionDismantle::at_call(), LoopDismantle::at_do(), FlattenDismantle::at_exprstmt(), LoopDismantle::at_for(), FlattenDismantle::at_goto(), SelectionDismantle::at_if(), TreeChecker::at_label(), LabelDismantle::at_label(), FlattenDismantle::at_label(), reachingDefinitionsWalker::at_proc(), reachingGenKillWalker::at_proc(), LocalCopyPropChanger::at_proc(), LivenessWalker::at_proc(), FlattenDismantle::at_proc(), ReturnDismantle::at_proc(), DefUseWalker::at_proc(), copyPropChanger::at_proc(), cfg_changer::at_proc(), unreachableCodeRemover::at_proc(), FlattenDismantle::at_return(), ReturnDismantle::at_return(), SelectionDismantle::at_switch(), FlattenDismantle::at_threeAddr(), ExpressionDismantle::at_unary(), LoopDismantle::at_while(), basicblockLocation::basicblockLocation(), change(), basicblockNode::change(), loopTree::classifyEdges(), copyPropChanger::create_copy_set(), copyPropChanger::create_kill_set(), dataflow(), Dominators::Dominators(), DismantleUtil::empty_block(), procNode::entry(), procNode::exit(), InitializerDismantle::init_scalar(), function_inline::inliner(), LocalCopyPropChanger::local_copy_prop(), copyPropChanger::local_copy_prop(), output_stmt(), SSA::place_one_phi(), procedureInfo::procedure_size(), procedureInfo::procedureInfo(), procLocation::procLocation(), Unreachable::remove_unreachable(), SSA::search(), SSA::SSA(), toBlock(), walk(), and basicblockNode::walk().

blockNode * blockNode::toBlock stmtNode   stmt,
Coord    coord
[static]
 

Convert to block.

This method is used primarily by the parser to make sure that all branch bodies and loop bodies are represented by blockNodes, even if they aren't in the source code. For example:

  if (cond) x = x + 1;
  

Even though the body of the branch is just a single statement, we build a block containing that one statement:

  if (cond) { x = x + 1; }
  

This simplifies many other kinds of processing. For example, it makes it easy to add statements to the branch body.

The method looks at the type of the input statement. If it is already a compound statement, it is return unchanged. Otherwise, it creates a compound statement, puts the statement in it, and then returns the compound statement.

Parameters:
stmt the statement to covert, if necessary
coord the location of the construct in the source file.
Returns:
the statement as a blockNode

Definition at line 68 of file blocknode.cc.

References Block, blockNode(), stmt_list, stmts(), and Node::typ().

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(), 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(), 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().

virtual typeNode* Node::type   const [inline, virtual, inherited]
 

Return the node data type.

This method returns the C data type of a node. Several different kinds of nodes contain typeNode pointers. This method is just a unified way to access them. It does not attempt to compute the type, it just returns whatever typeNode pointer resides on the node. The subclasses that have types return them, and the others return null.

Returns:
the typeNode pointer on the node.

Reimplemented in declNode, typeNode, exprNode, and operandNode.

Definition at line 344 of file ast.h.

Referenced by tree_visitor::at_block(), ReturnDismantle::at_return(), asm_gen_walker::doCallerSave(), and briggs_reg_alloc::interfere().

void blockNode::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.

Implements Node.

Reimplemented in basicblockNode.

Definition at line 92 of file blocknode.cc.

References Visitor::at_block().

Referenced by tree_visitor::at_case(), tree_visitor::at_do(), tree_visitor::at_for(), tree_visitor::at_if(), tree_visitor::at_label(), tree_visitor::at_proc(), tree_visitor::at_switch(), and tree_visitor::at_while().

void blockNode::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.

Implements Node.

Reimplemented in basicblockNode.

Definition at line 97 of file blocknode.cc.

References Walker::at_block(), Walker::Both, decls(), Walker::depth(), list_walker(), Walker::order(), Walker::Order, Walker::Postorder, Walker::Preorder, stmts(), and Walker::Subtree.

Referenced by whileNode::walk(), switchNode::walk(), procNode::walk(), labelNode::walk(), ifNode::walk(), forNode::walk(), doNode::walk(), and caseNode::walk().


Member Data Documentation

TREE decl_list blockNode::_decls [private]
 

the local declarations

This list contains any declarations made in the scope of the block.

Definition at line 4460 of file ast.h.

Referenced by blockNode().

Coord blockNode::_right_brace [private]
 

the location of the right curly brace

Definition at line 4470 of file ast.h.

TREE stmt_list blockNode::_stmts [private]
 

the statements

This list contains the statements contained in the block.

Definition at line 4466 of file ast.h.

Referenced by blockNode().

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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