com.caucho.quercus.expr

Class UnaryNotExpr

java.lang.Object

com.caucho.quercus.expr.Expr

com.caucho.quercus.expr.AbstractUnaryExpr

com.caucho.quercus.expr.UnaryNotExpr

public class UnaryNotExpr
extends AbstractUnaryExpr

Represents a PHP boolean negation

Field Summary

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

_expr

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

COMPILE_ARG_MAX, NULL_ARGS

Constructor Summary

Constructors

Constructor and Description
UnaryNotExpr(Expr expr)
UnaryNotExpr(Location location, Expr expr)

Method Summary

Modifier and Type	Method and Description
Value	eval(Env env) Evaluates the equality as a boolean.
boolean	evalBoolean(Env env) Evaluates the equality as a boolean.
boolean	isBoolean() Return true as a boolean.
java.lang.String	toString()

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

getExpr

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, equals, evalArg, evalArgs, evalArray, evalArrayAssign, evalArrayAssignRef, evalArrayAssignRef, evalArrayAssignTail, evalAssignRef, evalAssignRef, evalAssignValue, evalAssignValue, 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, isConstant, isDouble, isFalse, isLiteral, isLong, isNumber, isRef, isString, isTrue, isVar, print

Methods inherited from class java.lang.Object

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

Constructor Detail

UnaryNotExpr

public UnaryNotExpr(Location location,
                    Expr expr)

UnaryNotExpr

public UnaryNotExpr(Expr expr)

Method Detail

isBoolean

public boolean isBoolean()

Return true as a boolean.

Overrides:

isBoolean in class Expr

eval

public Value eval(Env env)

Evaluates the equality as a boolean.

Specified by:

eval in class Expr

Parameters:

env - the calling environment.

Returns:

the expression value.

evalBoolean

public boolean evalBoolean(Env env)

Evaluates the equality as a boolean.

Overrides:

evalBoolean in class Expr

Parameters:

env - the calling environment.

Returns:

the expression value.

toString

public java.lang.String toString()

Overrides:

toString in class Expr