nz.org.venice.parser
Class ParseMetadata

java.lang.Object
  nz.org.venice.parser.ParseMetadata

public class ParseMetadata

extends java.lang.Object

Container for parse and lexical analysis information. Used for debugging purposes such as returning the line number on which an error occurred.

Author:

Mark Hummel

Constructor Summary

ParseMetadata(java.util.HashMap parseTree, java.util.HashMap tokenLineMap)
Construct an object containing the information used to construct tghe parse tree.

Method Summary

Expression	getFunctionBody(java.lang.String functionName)
java.lang.String	getLineForExpression(Expression expression)
Expression	getParameterNames(java.lang.String functionName)

Methods inherited from class java.lang.Object

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

Constructor Detail

ParseMetadata

public ParseMetadata(java.util.HashMap parseTree,
                     java.util.HashMap tokenLineMap)

Construct an object containing the information used to construct tghe parse tree.

Parameters:

parseTree - The map containing links between the tokens and constructed expressions

tokenLineMap - The map containing links between the tokens and the line number on which they appeared.

Method Detail

getFunctionBody

public Expression getFunctionBody(java.lang.String functionName)

Parameters:

functionName - The name of the function which was called.

Returns:

The expression containing the function body for a given function.

getParameterNames

public Expression getParameterNames(java.lang.String functionName)

Parameters:

functionName - The name of the function.

Returns:

The list of parameters for a given function

getLineForExpression

public java.lang.String getLineForExpression(Expression expression)

Returns:

the line number as a string where a given expression appears