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CppExpressionGenerator Class Reference

#include <cppexprgenerator.h>

List of all members.

Public Methods
	CppExpressionGenerator (ostream &out)
	~CppExpressionGenerator ()
void	collectExpressions (NEDElement *node)
void	generateExpressionClasses ()
void	generateExpressionUsage (ExpressionNode *expr, const char *indent)
Protected Types
typedef std::vector<NEDElement *>	NEDElementVector
typedef std::map<ExpressionNode *, ExpressionInfo>	NEDExpressionMap
enum	{ MODE_INLINE_EXPRESSION, MODE_EXPRESSION_CLASS }
Protected Methods
void	doExtractArgs (ExpressionInfo &info, NEDElement *node)
void	doCollectExpressions (NEDElement *node)
void	collectExpressionInfo (ExpressionNode *expr)
void	generateExpressionClass (ExpressionInfo &info)
const char*	getTypeForArg (NEDElement *node)
const char*	getNameForArg (NEDElement *node)
void	doValueForArg (NEDElement *node)
void	doValueForCachedVar (NEDElement *node)
void	generateChildren (NEDElement *node, const char *indent, int mode)
void	generateItem (NEDElement *node, const char *indent, int mode)
void	doOperator (OperatorNode *node, const char *indent, int mode)
void	doFunction (FunctionNode *node, const char *indent, int mode)
void	doParamref (ParamRefNode *node, const char *indent, int mode)
void	doIdent (IdentNode *node, const char *indent, int mode)
void	doConst (ConstNode *node, const char *indent, int mode)
void	doExpression (ExpressionNode *node, const char *indent, int mode)
bool	needsExpressionClass (ExpressionNode *expr)
Protected Attributes
ostream&	out
NEDExpressionMap	exprMap
Static Protected Attributes
int	count

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Detailed Description

Helper class for NEDCppGenerator. Should be used in the following manner:

1. before entering a module declaration, collectExpressions() and generateExpressionClasses() should be called

2. inside the module, where expressions are actually used, generateExpressionUsage() should be called after outputting text like "value="

The internal needsExpressionClass() method decides which expressions are compiled inline and which with expression classes.

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Constructor & Destructor Documentation

CppExpressionGenerator::CppExpressionGenerator ( ostream & out )

Constructor.

CppExpressionGenerator::~CppExpressionGenerator ( ) [inline]

Destructor.

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Member Function Documentation

void CppExpressionGenerator::collectExpressions ( NEDElement * node )

Recursively finds all <expression> tags within the passed node, and stores references to them.

void CppExpressionGenerator::generateExpressionClasses ( )

Generate compiled expression classes (those derived from cExpression) from all stored expressions. The evaluate() methods of the generated classes will hold the expressions.

void CppExpressionGenerator::generateExpressionUsage ( ExpressionNode * expr, const char * indent )

Generate a cPar initialization code that uses the compiled expression classes generated by generateExpressionClasses().

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

• cppexprgenerator.h

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