Package ptolemy.data.expr

Class CParseTreeCodeGenerator

java.lang.Object

ptolemy.data.expr.AbstractParseTreeVisitor

ptolemy.data.expr.CParseTreeCodeGenerator

All Implemented Interfaces:

ParseTreeVisitor

public class CParseTreeCodeGenerator
extends AbstractParseTreeVisitor

This class visits parse trees and generates soot instructions that evaluate the parse tree.

Since:

Ptolemy II 4.0

Version:

$Id$

Author:

Steve Neuendorffer

See Also:

ASTPtRootNode

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Red (neuendor)

Field Summary

Fields

Modifier and Type	Field	Description
protected int	_nodeNumber	The node number, used to create unique node names.
protected java.util.HashMap	_nodeToLocalName	A map from node to local node name.

Constructor Summary

Constructors

Constructor	Description
CParseTreeCodeGenerator()

Method Summary

Modifier and Type	Method	Description
protected void	_assert(boolean flag, ASTPtRootNode node, java.lang.String message)	Assert that the given boolean value, which describes the given parse tree node is true.
protected void	_generateAllChildren(ASTPtRootNode node)	Loop through all of the children of this node, visiting each one of them, which will cause their token value to be determined.
protected void	_generateChild(ASTPtRootNode node, int i)	Visit the child with the given index of the given node.
protected java.lang.String	_getLocalNameForName(java.lang.String name)	Get the local name for this this name.
protected boolean	_isValidName(java.lang.String name)	Return true if the name is a valid name.
void	generateCode(ASTPtRootNode node)	Generate code for a node.
void	visitArrayConstructNode(ASTPtArrayConstructNode node)
void	visitBitwiseNode(ASTPtBitwiseNode node)
void	visitFunctionalIfNode(ASTPtFunctionalIfNode node)
void	visitFunctionApplicationNode(ASTPtFunctionApplicationNode node)
void	visitFunctionDefinitionNode(ASTPtFunctionDefinitionNode node)
void	visitLeafNode(ASTPtLeafNode node)
void	visitLogicalNode(ASTPtLogicalNode node)
void	visitMatrixConstructNode(ASTPtMatrixConstructNode node)
void	visitMethodCallNode(ASTPtMethodCallNode node)
void	visitPowerNode(ASTPtPowerNode node)
void	visitProductNode(ASTPtProductNode node)
void	visitRecordConstructNode(ASTPtRecordConstructNode node)
void	visitRelationalNode(ASTPtRelationalNode node)
void	visitShiftNode(ASTPtShiftNode node)
void	visitSumNode(ASTPtSumNode node)
void	visitUnaryNode(ASTPtUnaryNode node)

Methods inherited from class ptolemy.data.expr.AbstractParseTreeVisitor

_unsupportedVisitException, _visitAllChildren, _visitChild, visitAssignmentNode, visitUnionConstructNode

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_nodeToLocalName

protected java.util.HashMap _nodeToLocalName

A map from node to local node name.

_nodeNumber

protected int _nodeNumber

The node number, used to create unique node names.

Constructor Detail

CParseTreeCodeGenerator

public CParseTreeCodeGenerator()

Method Detail

generateCode

public void generateCode(ASTPtRootNode node)
                  throws IllegalActionException

Generate code for a node.

Parameters:

node - The node for which code is generated.

Throws:

IllegalActionException - If type inference fails.

visitArrayConstructNode

public void visitArrayConstructNode(ASTPtArrayConstructNode node)
                             throws IllegalActionException

Specified by:

visitArrayConstructNode in interface ParseTreeVisitor

Overrides:

visitArrayConstructNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitBitwiseNode

public void visitBitwiseNode(ASTPtBitwiseNode node)
                      throws IllegalActionException

Specified by:

visitBitwiseNode in interface ParseTreeVisitor

Overrides:

visitBitwiseNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitFunctionApplicationNode

public void visitFunctionApplicationNode(ASTPtFunctionApplicationNode node)
                                  throws IllegalActionException

Specified by:

visitFunctionApplicationNode in interface ParseTreeVisitor

Overrides:

visitFunctionApplicationNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitFunctionalIfNode

public void visitFunctionalIfNode(ASTPtFunctionalIfNode node)
                           throws IllegalActionException

Specified by:

visitFunctionalIfNode in interface ParseTreeVisitor

Overrides:

visitFunctionalIfNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitFunctionDefinitionNode

public void visitFunctionDefinitionNode(ASTPtFunctionDefinitionNode node)
                                 throws IllegalActionException

Specified by:

visitFunctionDefinitionNode in interface ParseTreeVisitor

Overrides:

visitFunctionDefinitionNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitLeafNode

public void visitLeafNode(ASTPtLeafNode node)
                   throws IllegalActionException

Specified by:

visitLeafNode in interface ParseTreeVisitor

Overrides:

visitLeafNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitLogicalNode

public void visitLogicalNode(ASTPtLogicalNode node)
                      throws IllegalActionException

Specified by:

visitLogicalNode in interface ParseTreeVisitor

Overrides:

visitLogicalNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitMatrixConstructNode

public void visitMatrixConstructNode(ASTPtMatrixConstructNode node)
                              throws IllegalActionException

Specified by:

visitMatrixConstructNode in interface ParseTreeVisitor

Overrides:

visitMatrixConstructNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitMethodCallNode

public void visitMethodCallNode(ASTPtMethodCallNode node)
                         throws IllegalActionException

Specified by:

visitMethodCallNode in interface ParseTreeVisitor

Overrides:

visitMethodCallNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitPowerNode

public void visitPowerNode(ASTPtPowerNode node)
                    throws IllegalActionException

Specified by:

visitPowerNode in interface ParseTreeVisitor

Overrides:

visitPowerNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitProductNode

public void visitProductNode(ASTPtProductNode node)
                      throws IllegalActionException

Specified by:

visitProductNode in interface ParseTreeVisitor

Overrides:

visitProductNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitRecordConstructNode

public void visitRecordConstructNode(ASTPtRecordConstructNode node)
                              throws IllegalActionException

Specified by:

visitRecordConstructNode in interface ParseTreeVisitor

Overrides:

visitRecordConstructNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitRelationalNode

public void visitRelationalNode(ASTPtRelationalNode node)
                         throws IllegalActionException

Specified by:

visitRelationalNode in interface ParseTreeVisitor

Overrides:

visitRelationalNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitShiftNode

public void visitShiftNode(ASTPtShiftNode node)
                    throws IllegalActionException

Specified by:

visitShiftNode in interface ParseTreeVisitor

Overrides:

visitShiftNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitSumNode

public void visitSumNode(ASTPtSumNode node)
                  throws IllegalActionException

Specified by:

visitSumNode in interface ParseTreeVisitor

Overrides:

visitSumNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

visitUnaryNode

public void visitUnaryNode(ASTPtUnaryNode node)
                    throws IllegalActionException

Specified by:

visitUnaryNode in interface ParseTreeVisitor

Overrides:

visitUnaryNode in class AbstractParseTreeVisitor

Throws:

IllegalActionException

_assert

protected void _assert(boolean flag,
                       ASTPtRootNode node,
                       java.lang.String message)

Assert that the given boolean value, which describes the given parse tree node is true. If it is false, then throw a new InternalErrorException that describes the node that includes the given message.

Parameters:

flag - The value to be checked. If false, then an InternalErrorException is thrown.

node - The node.

message - The error message to be included in the exception if the flag parameter is false.

_generateAllChildren

protected void _generateAllChildren(ASTPtRootNode node)
                             throws IllegalActionException

Loop through all of the children of this node, visiting each one of them, which will cause their token value to be determined.

Parameters:

node - The node.

Throws:

IllegalActionException - If thrown while generating a child.

_generateChild

protected void _generateChild(ASTPtRootNode node,
                              int i)
                       throws IllegalActionException

Visit the child with the given index of the given node. This is usually called while visiting the given node.

Parameters:

node - The node.

i - The index of the child to be visited.

Throws:

IllegalActionException - If thrown while visiting a child node.

_getLocalNameForName

protected java.lang.String _getLocalNameForName(java.lang.String name)
                                         throws IllegalActionException

Get the local name for this this name.

Parameters:

name - The name to be looked up.

Returns:

The local name.

Throws:

IllegalActionException - Always thrown in this base class.

_isValidName

protected boolean _isValidName(java.lang.String name)
                        throws IllegalActionException

Return true if the name is a valid name. This base class always returns false.

Parameters:

name - The name to be looked up.

Returns:

True if the name is valid. This base class always returns false.

Throws:

IllegalActionException - Not thrown in this base class.