com.caucho.quercus.expr
Class LiteralExpr

java.lang.Object
  com.caucho.quercus.expr.Expr
      com.caucho.quercus.expr.LiteralExpr

Direct Known Subclasses:

LiteralExprPro

public class LiteralExpr
extends Expr

Represents a literal expression.

Field Summary

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

COMPILE_ARG_MAX

Constructor Summary

LiteralExpr(Value value)

Method Summary

Value	eval(Env env) Evaluates the expression.
Value	evalConstant() Evaluates the expression as a constant.
protected Value	getValue()
boolean	isBoolean() Returns true if the expression evaluates to a boolean.
boolean	isDouble() Returns true for a double value.
boolean	isFalse() Returns true if a static true value.
boolean	isLiteral() Returns true for a literal expression.
boolean	isLong() Returns true for a long value.
boolean	isTrue() Returns true if a static true value.
java.lang.String	toString()

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, evalConstantPrefix, evalConstantSuffix, evalCopy, evalDirty, evalDouble, evalIsset, evalLong, evalObject, evalPostIncrement, evalPreIncrement, evalRef, evalString, evalStringValue, evalTop, evalUnsetArray, evalValue, evalVar, getFileName, getFunctionLocation, getLine, getLocation, getLocationLine, isArray, isAssign, isConstant, isNumber, isRef, isString, isVar, print

Methods inherited from class java.lang.Object

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

Constructor Detail

LiteralExpr

public LiteralExpr(Value value)

Method Detail

getValue

protected Value getValue()

isLiteral

public boolean isLiteral()

Returns true for a literal expression.

Overrides:

isLiteral in class Expr

isTrue

public boolean isTrue()

Returns true if a static true value.

Overrides:

isTrue in class Expr

isFalse

public boolean isFalse()

Returns true if a static true value.

Overrides:

isFalse in class Expr

isLong

public boolean isLong()

Returns true for a long value.

Overrides:

isLong in class Expr

isDouble

public boolean isDouble()

Returns true for a double value.

Overrides:

isDouble in class Expr

isBoolean

public boolean isBoolean()

Description copied from class: Expr

Returns true if the expression evaluates to a boolean.

Overrides:

isBoolean in class Expr

evalConstant

public Value evalConstant()

Evaluates the expression as a constant.

Overrides:

evalConstant in class Expr

Returns:

the expression value.

eval

public Value eval(Env env)

Evaluates the expression.

Specified by:

eval in class Expr

Parameters:

env - the calling environment.

Returns:

the expression value.

toString

public java.lang.String toString()

Overrides:

toString in class Expr