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ptrNode Class Reference

Pointer type node. More...

#include <ast.h>

Inheritance diagram for ptrNode::

List of all members.

Public Methods
	ptrNode (Type_qualifiers tq, typeNode *the_type, const Coord coord=Coord::Unknown)
	Create a pointer type. More...
virtual	~ptrNode ()
	Destroy a ptrNode. More...
bool	qualified_equal_to (typeNode *node2, bool strict_toplevel, bool strict_recursive)
	Virtual type comparison routine. More...
virtual Node *	clone () const
	Clone the input node. More...
virtual void	output_type (output_context &ct, Node *par, Assoc context, Type_qualifiers q)
	Output a type. More...
Type predicates
These methods support a variety of useful type predicates, most of which are self-explanatory. Each typeNode subclass overrides the methods for which it returns true. See typeNode for details.
virtual bool	is_scalar () const
virtual bool	is_derived () const
virtual bool	is_pointer () 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. More...
virtual void	walk (Walker &the_walker)
	Dispatch a Walker. More...
virtual Node *	change (Changer &the_changer, bool redispatch=false)
	Dispatch a Changer. More...

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Detailed Description

Pointer type node.

This class represents the pointer-to compound type. The sub-type is the type that is pointed to. For example, for a node to represent "int **", the subtype would be "int *".

The NodeType is Ptr.

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Constructor & Destructor Documentation

ptrNode::ptrNode (  Type_qualifiers    tq, typeNode *    the_type, const Coord    coord = Coord::Unknown )

Create a pointer type. The new pointer type has the given type qualifiers and sub-type (the type being pointed to). Parameters: tq  the type qualifiers the_type  the sub-type (the type being pointed to) coord  the location of the construct in the source file.

ptrNode::~ptrNode (    )  [virtual]

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

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Member Function Documentation

Node * ptrNode::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 Node.

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

Clone the input node. This is not a "deep" clone, so be careful. For a deep clone, use the clone_changer class. Returns: a shallow copy of the node (no subtrees are copied). Reimplemented from Node.

virtual bool ptrNode::is_derived (    )  const [inline, virtual]

Reimplemented from typeNode.

virtual bool ptrNode::is_pointer (    )  const [inline, virtual]

Reimplemented from typeNode.

virtual bool ptrNode::is_scalar (    )  const [inline, virtual]

Reimplemented from typeNode.

void ptrNode::output_type (  output_context &    ct, Node *    parent, Assoc    context, Type_qualifiers    q )  [virtual]

Output a type. Reimplemented from typeNode.

bool ptrNode::qualified_equal_to (  typeNode *    node2, bool    strict_toplevel, bool    strict_recursive )  [virtual]

Virtual type comparison routine. Each typeNode subclass overrides this routine to provide its specific type comparison. This is used by the static equal_to() method to perform general deep type comparison. See also: equal_to() Parameters: other  the type to compare against strict_toplevel  pass true to require strict comparison of top-level types strict_recursive  pass true to require strict comparson of sub-types Returns: true, if the types pass the equality test Reimplemented from typeNode.

void ptrNode::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 Node.

void ptrNode::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 Node.

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

• ast.h
• ptrnode.cc

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