com.caucho.quercus.expr
Class LiteralStringExpr

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

Direct Known Subclasses:

LiteralBinaryStringExpr, LiteralStringExprPro

public class LiteralStringExpr
extends Expr

Represents a PHP string literal expression.

Field Summary

protected StringValue

_value

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

COMPILE_ARG_MAX

Constructor Summary

LiteralStringExpr(Location location, java.lang.String value)

LiteralStringExpr(Location location, StringValue value)

LiteralStringExpr(java.lang.String value)

LiteralStringExpr(StringValue value)

Method Summary

Expr	createClassConst(QuercusParser parser, java.lang.String name) Creates a class field $class::foo
Value	eval(Env env) Evaluates the expression.
Value	evalConstant() Evaluates the expression as a constant.
StringValue	evalStringValue(Env env) Evaluates the expression as a string value.
boolean	isLiteral() Returns true for a literal expression.
boolean	isString() Returns true if the expression evaluates to a string.
java.lang.String	toString()

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

assign, canRead, createAssign, createAssignFrom, createAssignRef, createCall, 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, evalTop, evalUnsetArray, evalValue, evalVar, getFileName, getFunctionLocation, getLine, getLocation, getLocationLine, isArray, isAssign, isBoolean, isConstant, isDouble, isFalse, isLong, isNumber, isRef, isTrue, isVar, print

Methods inherited from class java.lang.Object

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

Field Detail

_value

protected final StringValue _value

Constructor Detail

LiteralStringExpr

public LiteralStringExpr(Location location,
                         java.lang.String value)

LiteralStringExpr

public LiteralStringExpr(Location location,
                         StringValue value)

LiteralStringExpr

public LiteralStringExpr(java.lang.String value)

LiteralStringExpr

public LiteralStringExpr(StringValue value)

Method Detail

isLiteral

public boolean isLiteral()

Returns true for a literal expression.

Overrides:

isLiteral in class Expr

isString

public boolean isString()

Returns true if the expression evaluates to a string.

Overrides:

isString in class Expr

createClassConst

public Expr createClassConst(QuercusParser parser,
                             java.lang.String name)

Creates a class field $class::foo

Overrides:

createClassConst 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.

evalStringValue

public StringValue evalStringValue(Env env)

Evaluates the expression as a string value.

Overrides:

evalStringValue in class Expr

Parameters:

env - the calling environment.

Returns:

the expression value.

toString

public java.lang.String toString()

Overrides:

toString in class Expr