com.caucho.quercus.expr
Class BinarySubExpr

java.lang.Object
  extended by com.caucho.quercus.expr.Expr
      extended by com.caucho.quercus.expr.AbstractBinaryExpr
          extended by com.caucho.quercus.expr.BinarySubExpr
Direct Known Subclasses:
BinarySubExprPro

public class BinarySubExpr
extends AbstractBinaryExpr

A "$b - $a" subtract expression.


Field Summary
 
Fields inherited from class com.caucho.quercus.expr.AbstractBinaryExpr
_left, _right
 
Fields inherited from class com.caucho.quercus.expr.Expr
COMPILE_ARG_MAX
 
Constructor Summary
protected BinarySubExpr(Expr left, Expr right)
           
protected BinarySubExpr(Location location, Expr left, Expr right)
           
 
Method Summary
 Value eval(Env env)
          Evaluates the expression returning the expression value.
 java.lang.String toString()
           
 
Methods inherited from class com.caucho.quercus.expr.AbstractBinaryExpr
getLeft, getRight
 
Methods inherited from class com.caucho.quercus.expr.Expr
assign, canRead, createAssign, createAssignFrom, createAssignRef, createCall, createClassConst, createClassField, createClassField, createCopy, createDeref, createFieldGet, createFieldGet, createIsset, createRef, createUnset, evalArg, evalArgs, evalArray, evalArrayAssign, evalAssignRef, evalAssignValue, evalBoolean, evalChar, evalConstant, evalConstantPrefix, evalConstantSuffix, evalCopy, evalDirty, evalDouble, evalIsset, evalLong, evalObject, evalPostIncrement, evalPreIncrement, evalRef, evalString, evalStringValue, evalTop, evalUnsetArray, evalValue, evalVar, getFileName, getFunctionLocation, getLine, getLocation, getLocationLine, isArray, isAssign, isBoolean, isConstant, isDouble, isFalse, isLiteral, isLong, isNumber, isRef, isString, isTrue, isVar, print
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

BinarySubExpr

protected BinarySubExpr(Location location,
                        Expr left,
                        Expr right)

BinarySubExpr

protected BinarySubExpr(Expr left,
                        Expr right)
Method Detail

eval

public Value eval(Env env)
Evaluates the expression returning the expression value.

Specified by:
eval in class Expr
Parameters:
env - the quercus environment
Returns:
the resulting value

toString

public java.lang.String toString()
Overrides:
toString in class Expr