com.caucho.quercus.expr

Class VarUnsetExpr

java.lang.Object

com.caucho.quercus.expr.Expr

com.caucho.quercus.expr.VarUnsetExpr

public class VarUnsetExpr
extends Expr

Represents unsetting a PHP variable

Field Summary

Fields

Modifier and Type	Field and Description
protected AbstractVarExpr	_var

Fields inherited from class com.caucho.quercus.expr.Expr

COMPILE_ARG_MAX, NULL_ARGS

Constructor Summary

Constructors

Constructor and Description
VarUnsetExpr(AbstractVarExpr var)
VarUnsetExpr(Location location, AbstractVarExpr var)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
Value	eval(Env env) Evaluates the expression.
int	hashCode()
java.lang.String	toString()

Methods inherited from class com.caucho.quercus.expr.Expr

assign, canRead, createAssign, createAssignFrom, createAssignRef, createCall, createClassConst, createClassConst, createClassField, createClassField, createCopy, createDeref, createFieldGet, createFieldGet, createIsset, createRef, createUnset, evalArg, evalArgs, evalArray, evalArrayAssign, evalArrayAssignRef, evalArrayAssignRef, evalArrayAssignTail, evalAssignRef, evalAssignRef, evalAssignValue, evalAssignValue, evalBoolean, evalChar, evalConstant, evalConstantPrefix, evalConstantSuffix, evalCopy, evalDirty, evalDouble, evalEmpty, evalIsset, evalIssetValue, evalLong, evalObject, evalPostIncrement, evalPreIncrement, evalQuercusClass, 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, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

_var

protected final AbstractVarExpr _var

Constructor Detail

VarUnsetExpr

public VarUnsetExpr(Location location,
                    AbstractVarExpr var)

VarUnsetExpr

public VarUnsetExpr(AbstractVarExpr var)

Method Detail

eval

public Value eval(Env env)

Evaluates the expression.

Specified by:

eval in class Expr

Parameters:

env - the calling environment.

Returns:

the expression value.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class Expr

toString

public java.lang.String toString()

Overrides:

toString in class Expr