com.caucho.quercus.expr

Class UnaryPreIncrementExpr

java.lang.Object

com.caucho.quercus.expr.Expr

com.caucho.quercus.expr.AbstractUnaryExpr

com.caucho.quercus.expr.UnaryPreIncrementExpr

public class UnaryPreIncrementExpr
extends AbstractUnaryExpr

Represents a PHP pre increment expression.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	_incr

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
UnaryPreIncrementExpr(Expr expr, int incr)
UnaryPreIncrementExpr(Location location, Expr expr, int incr)

Method Summary

Modifier and Type	Method and Description
Value	eval(Env env) Evaluates the expression, returning a Value, never a Var.
boolean	isDouble() Return true for a double value
boolean	isLong() Return true for a long value
boolean	isNumber() Return true for a number
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, 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, isFalse, isLiteral, isRef, isString, isTrue, isVar, print

Methods inherited from class java.lang.Object

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

Field Detail

_incr

protected final int _incr

Constructor Detail

UnaryPreIncrementExpr

public UnaryPreIncrementExpr(Location location,
                             Expr expr,
                             int incr)

UnaryPreIncrementExpr

public UnaryPreIncrementExpr(Expr expr,
                             int incr)

Method Detail

eval

public Value eval(Env env)

Description copied from class: Expr

Evaluates the expression, returning a Value, never a Var.

Specified by:

eval in class Expr

Parameters:

env - the calling environment.

Returns:

the expression value.

isDouble

public boolean isDouble()

Return true for a double value

Overrides:

isDouble in class Expr

isLong

public boolean isLong()

Return true for a long value

Overrides:

isLong in class Expr

isNumber

public boolean isNumber()

Return true for a number

Overrides:

isNumber in class Expr

toString

public java.lang.String toString()

Overrides:

toString in class Expr