stx::ParseTree Class Reference

ParseTree contains the root node of a parse tree. More...

#include <ExpressionParser.h>

List of all members.

Public Member Functions
	ParseTree ()
	Create NULL parse tree object from the root ParseNode.
	ParseTree (ParseNode *pt)
	Create parse tree object from the root ParseNode.
bool	isEmpty () const
	Returns true if this object does not contain a parse tree.
AnyScalar	evaluate (const class SymbolTable &st=BasicSymbolTable()) const
	Function to recursively evaluate the contained parse tree and retrieve the calculated scalar value based on the given symbol table.
std::string	toString () const
	Return the parsed expression as a string, which can be parsed again.
Protected Attributes
boost::shared_ptr< ParseNode >	rootnode
	Enclosed smart ptr so that the parse tree is not cloned when ParseTree instances are copied.

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Detailed Description

ParseTree contains the root node of a parse tree.

It correctly allocates and deletes parse node, because they themselves are not copy-constructable or assignable. Pimpl class pattern with exposed inner class.

Definition at line 305 of file ExpressionParser.h.

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Constructor & Destructor Documentation

stx::ParseTree::ParseTree

(

)

[inline]

Create NULL parse tree object from the root ParseNode.

All functions will assert() or segfault unless the tree is assigned.

Definition at line 315 of file ExpressionParser.h.

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Member Function Documentation

AnyScalar stx::ParseTree::evaluate

(

const class SymbolTable &

st = BasicSymbolTable()

)

const [inline]

Function to recursively evaluate the contained parse tree and retrieve the calculated scalar value based on the given symbol table.

Definition at line 334 of file ExpressionParser.h.

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Member Data Documentation

boost::shared_ptr<ParseNode> stx::ParseTree::rootnode [protected]

Enclosed smart ptr so that the parse tree is not cloned when ParseTree instances are copied.

Definition at line 310 of file ExpressionParser.h.

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

• libstx-exparser/ExpressionParser.h

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