com.caucho.quercus.expr

Class ThisFieldVarExpr

java.lang.Object

com.caucho.quercus.expr.Expr

com.caucho.quercus.expr.AbstractVarExpr

com.caucho.quercus.expr.ThisFieldVarExpr

public class ThisFieldVarExpr
extends AbstractVarExpr

Represents a PHP field reference.

Field Summary

Fields

Modifier and Type	Field and Description
protected Expr	_nameExpr
protected ThisExpr	_qThis

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

COMPILE_ARG_MAX, NULL_ARGS

Constructor Summary

Constructors

Constructor and Description
ThisFieldVarExpr(Location location, ThisExpr qThis, Expr nameExpr)

Method Summary

Modifier and Type	Method and Description
Expr	createCall(QuercusParser parser, Location location, java.util.ArrayList<Expr> args) Creates a function call expression
Value	eval(Env env) Evaluates the expression.
Value	evalArg(Env env, boolean isTop) Evaluates the expression.
Value	evalArray(Env env) Evaluates the expression, creating an array if the field is unset.
Value	evalArrayAssign(Env env, Expr indexExpr, Expr valueExpr) Evaluates as an array index assign ($a[index] = value).
Value	evalArrayAssignRef(Env env, Expr indexExpr, Expr valueExpr) Evaluates as an array index assign ($a[index] = &value).
Value	evalAssignRef(Env env, Value value) Evaluates the expression.
Value	evalAssignValue(Env env, Value value) Evaluates the expression.
Value	evalObject(Env env) Evaluates the expression, creating an object if the field is unset.
void	evalUnset(Env env) Evaluates the expression.
Var	evalVar(Env env) Evaluates the expression.
java.lang.String	toString()

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

assign, createAssign, createAssignRef, createCopy, createRef, createUnset, evalCopy, evalRef, isVar

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

canRead, createAssignFrom, createClassConst, createClassConst, createClassField, createClassField, createDeref, createFieldGet, createFieldGet, createIsset, equals, evalArgs, evalArrayAssignRef, evalArrayAssignTail, evalAssignRef, evalAssignValue, evalBoolean, evalChar, evalConstant, evalConstantPrefix, evalConstantSuffix, evalDirty, evalDouble, evalEmpty, evalIsset, evalIssetValue, evalLong, evalPostIncrement, evalPreIncrement, evalQuercusClass, evalString, evalStringValue, evalTop, evalUnsetArray, evalValue, getFileName, getFunctionLocation, getLine, getLocation, getLocationLine, isArray, isAssign, isBoolean, isConstant, isDouble, isFalse, isLiteral, isLong, isNumber, isRef, isString, isTrue, print

Methods inherited from class java.lang.Object

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

Field Detail

_qThis

protected final ThisExpr _qThis

_nameExpr

protected final Expr _nameExpr

Constructor Detail

ThisFieldVarExpr

public ThisFieldVarExpr(Location location,
                        ThisExpr qThis,
                        Expr nameExpr)

Method Detail

createCall

public Expr createCall(QuercusParser parser,
                       Location location,
                       java.util.ArrayList<Expr> args)
                throws java.io.IOException

Creates a function call expression

Overrides:

createCall in class Expr

Throws:

java.io.IOException

evalArg

public Value evalArg(Env env,
                     boolean isTop)

Evaluates the expression.

Overrides:

evalArg in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

evalVar

public Var evalVar(Env env)

Evaluates the expression.

Specified by:

evalVar in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

eval

public Value eval(Env env)

Evaluates the expression.

Specified by:

eval in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

evalAssignValue

public Value evalAssignValue(Env env,
                             Value value)

Evaluates the expression.

Overrides:

evalAssignValue in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

evalAssignRef

public Value evalAssignRef(Env env,
                           Value value)

Evaluates the expression.

Specified by:

evalAssignRef in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

evalArrayAssign

public Value evalArrayAssign(Env env,
                             Expr indexExpr,
                             Expr valueExpr)

Evaluates as an array index assign ($a[index] = value).

Overrides:

evalArrayAssign in class Expr

Returns:

what was assigned

evalArrayAssignRef

public Value evalArrayAssignRef(Env env,
                                Expr indexExpr,
                                Expr valueExpr)

Evaluates as an array index assign ($a[index] = &value).

Overrides:

evalArrayAssignRef in class Expr

Returns:

what was assigned

evalArray

public Value evalArray(Env env)

Evaluates the expression, creating an array if the field is unset.

Overrides:

evalArray in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

evalObject

public Value evalObject(Env env)

Evaluates the expression, creating an object if the field is unset.

Overrides:

evalObject in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

evalUnset

public void evalUnset(Env env)

Evaluates the expression.

Specified by:

evalUnset in class AbstractVarExpr

Parameters:

env - the calling environment.

toString

public java.lang.String toString()

Overrides:

toString in class Expr