com.wewebu.expression.language
Class OwExprScopeSelector

java.lang.Object
  extended by com.wewebu.expression.language.OwExprExpression
      extended by com.wewebu.expression.language.OwExprScopeSelector
All Implemented Interfaces:
OwExprPrimaryPrefix

public class OwExprScopeSelector
extends OwExprExpression
implements OwExprPrimaryPrefix

OwExprScopeSelector.

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Field Summary
 
Fields inherited from class com.wewebu.expression.language.OwExprExpression
m_errorTable, m_symbolTable, m_typeError
 
Constructor Summary
OwExprScopeSelector(OwExprSymbolTable symTable_p, OwExprErrorTable errorTable_p, String scopeMemberName_p)
           
OwExprScopeSelector(OwExprSymbolTable symTable_p, OwExprErrorTable errorTable_p, String scopeMemberName_p, OwExprPrimaryPrefix prefix_p)
           
 
Method Summary
 OwExprValue evaluate(OwExprScope scope_p)
          Evaluates this expression on the OwExprScope (scope) provided as argument.
 OwExprExpression expression()
           
 OwExprFunctionSymbol regressToFunction()
          Forces this primary prefix symbol to a function.
 OwExprPropertySymbol regressToPorperty()
          Forces this primary prefix symbol to a property.
 OwExprSymbolScope regressToScope()
          Forces this primary prefix to a scope symbol.
 String toString()
           
 OwExprExpressionType type()
          Type check method.
 
Methods inherited from class com.wewebu.expression.language.OwExprExpression
errCount, evaluate, evaluate, getErrorTable, getSymbol, getSymbolTable, hasErrors, initType, symbolsVisibleInScopes
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

OwExprScopeSelector

public OwExprScopeSelector(OwExprSymbolTable symTable_p,
                           OwExprErrorTable errorTable_p,
                           String scopeMemberName_p)

OwExprScopeSelector

public OwExprScopeSelector(OwExprSymbolTable symTable_p,
                           OwExprErrorTable errorTable_p,
                           String scopeMemberName_p,
                           OwExprPrimaryPrefix prefix_p)
Method Detail

evaluate

public OwExprValue evaluate(OwExprScope scope_p)
                     throws OwExprEvaluationException
Description copied from class: OwExprExpression
Evaluates this expression on the OwExprScope (scope) provided as argument.

Specified by:
evaluate in class OwExprExpression
Parameters:
scope_p - external scope to be used during evaluation
Returns:
the value resulted from the evaluation of this expression
Throws:
OwExprEvaluationException - in case of evaluation failure

type

public OwExprExpressionType type()
                          throws OwExprTypeMissmatchException
Description copied from class: OwExprExpression
Type check method. If type errors are encountered during type computation the OwExprExpression.m_typeError should be set to true

Specified by:
type in class OwExprExpression
Returns:
the expression type for this expression
Throws:
OwExprTypeMissmatchException - if type errors are encountered during type computation

regressToPorperty

public OwExprPropertySymbol regressToPorperty()
                                       throws OwExprTypeMissmatchException
Description copied from interface: OwExprPrimaryPrefix
Forces this primary prefix symbol to a property.

Specified by:
regressToPorperty in interface OwExprPrimaryPrefix
Returns:
the property symbol of this expression
Throws:
OwExprTypeMissmatchException - if a type mismatch is detected during property symbol creation

regressToScope

public OwExprSymbolScope regressToScope()
                                 throws OwExprTypeMissmatchException
Description copied from interface: OwExprPrimaryPrefix
Forces this primary prefix to a scope symbol.

Specified by:
regressToScope in interface OwExprPrimaryPrefix
Returns:
the scope symbol of this expression
Throws:
OwExprTypeMissmatchException - if a type mismatch is detected during scope symbol creation

regressToFunction

public OwExprFunctionSymbol regressToFunction()
                                       throws OwExprTypeMissmatchException
Description copied from interface: OwExprPrimaryPrefix
Forces this primary prefix symbol to a function.

Specified by:
regressToFunction in interface OwExprPrimaryPrefix
Returns:
the function symbol of this expression
Throws:
OwExprTypeMissmatchException - if a type mismatch is detected during function symbol creation

expression

public OwExprExpression expression()
Specified by:
expression in interface OwExprPrimaryPrefix
Returns:
the expression represented by this primary prefix

toString

public String toString()
Overrides:
toString in class Object


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