org.teatrove.tea.parsetree
Class BinaryExpression

java.lang.Object
  org.teatrove.tea.parsetree.Node
      org.teatrove.tea.parsetree.Expression
          org.teatrove.tea.parsetree.BinaryExpression

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

ArithmeticExpression, BinaryLogicalExpression, CompareExpression, ConcatenateExpression

public abstract class BinaryExpression
extends Expression

A BinaryExpression contains a left expression, a right expression and an operator. BinaryExpressions never evaluate to null.

Author:

Brian S O'Neill

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.teatrove.tea.parsetree.Expression

Expression.Conversion

Constructor Summary

BinaryExpression(SourceInfo info, Token operator, Expression left, Expression right)

Method Summary

Object	clone() Returns a clone of this Node and all its children.
Expression	getLeftExpression()
Token	getOperator()
Expression	getRightExpression()
boolean	isExceptionPossible() Returns true if an exception can be thrown while executing this Expression.
void	setLeftExpression(Expression left)
void	setRightExpression(Expression right)
void	setType(Type type) Sets the type of this expression, clearing the conversion chain.

Methods inherited from class org.teatrove.tea.parsetree.Expression

accept, convertTo, convertTo, forceConversion, getConversionChain, getInitialType, getType, getValue, isValueKnown, setInitialType

Methods inherited from class org.teatrove.tea.parsetree.Node

getSourceInfo, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryExpression

public BinaryExpression(SourceInfo info,
                        Token operator,
                        Expression left,
                        Expression right)

Method Detail

clone

public Object clone()

Description copied from class: Node

Returns a clone of this Node and all its children. Immutable child objects are not necessarily cloned

Overrides:

clone in class Expression

isExceptionPossible

public boolean isExceptionPossible()

Description copied from class: Expression

Returns true if an exception can be thrown while executing this Expression. By default, returns true only if a type conversion could cause an exception.

Overrides:

isExceptionPossible in class Expression

setType

public void setType(Type type)

Description copied from class: Expression

Sets the type of this expression, clearing the conversion chain.

Overrides:

setType in class Expression

getOperator

public Token getOperator()

getLeftExpression

public Expression getLeftExpression()

getRightExpression

public Expression getRightExpression()

setLeftExpression

public void setLeftExpression(Expression left)

setRightExpression

public void setRightExpression(Expression right)