com.caucho.quercus.expr
Class BinaryAppendExpr

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

Direct Known Subclasses:

BinaryAppendExprPro

public class BinaryAppendExpr
extends Expr

Represents a PHP append ('.') expression.

Field Summary

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

COMPILE_ARG_MAX

Constructor Summary

protected

BinaryAppendExpr(Expr value, BinaryAppendExpr next)

Method Summary

Value	eval(Env env) Evaluates the expression, returning a Value, never a Var.
Value	evalConstantPrefix() Returns the first constant string, or null.
Value	evalConstantSuffix() Returns the tail constant string, or null.
java.lang.String	evalString(Env env) Evaluates the expression as a string
BinaryAppendExpr	getNext() Returns the next value in the append chain.
Expr	getValue() Returns the value expression.
boolean	isString() Returns true for a string.
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, evalConstant, evalCopy, evalDirty, evalDouble, evalIsset, evalLong, evalObject, evalPostIncrement, evalPreIncrement, evalRef, evalStringValue, evalTop, evalUnsetArray, evalValue, evalVar, getFileName, getFunctionLocation, getLine, getLocation, getLocationLine, isArray, isAssign, isBoolean, isConstant, isDouble, isFalse, isLiteral, isLong, isNumber, isRef, isTrue, isVar, print

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryAppendExpr

protected BinaryAppendExpr(Expr value,
                           BinaryAppendExpr next)

Method Detail

getValue

public Expr getValue()

Returns the value expression.

getNext

public BinaryAppendExpr getNext()

Returns the next value in the append chain.

isString

public boolean isString()

Returns true for a string.

Overrides:

isString in class Expr

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.

evalString

public java.lang.String evalString(Env env)

Description copied from class: Expr

Evaluates the expression as a string

Overrides:

evalString in class Expr

Parameters:

env - the calling environment.

Returns:

the expression value.

evalConstantPrefix

public Value evalConstantPrefix()

Returns the first constant string, or null.

Overrides:

evalConstantPrefix in class Expr

Returns:

the expression value as a prefix.

evalConstantSuffix

public Value evalConstantSuffix()

Returns the tail constant string, or null.

Overrides:

evalConstantSuffix in class Expr

Returns:

the expression value as a suffix.

toString

public java.lang.String toString()

Overrides:

toString in class Expr