com.caucho.quercus.expr
Class ObjectFieldVarExpr

java.lang.Object
  com.caucho.quercus.expr.Expr
      com.caucho.quercus.expr.AbstractVarExpr
          com.caucho.quercus.expr.ObjectFieldVarExpr

Direct Known Subclasses:

ObjectFieldVarExprPro

public class ObjectFieldVarExpr
extends AbstractVarExpr

Represents a PHP field reference.

Field Summary

protected Expr	_nameExpr
protected Expr	_objExpr

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

COMPILE_ARG_MAX

Constructor Summary

ObjectFieldVarExpr(Expr objExpr, Expr nameExpr)

ObjectFieldVarExpr(Location location, Expr objExpr, Expr nameExpr)

Method Summary

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	evalAssignRef(Env env, Value value) Evaluates the expression.
Value	evalAssignValue(Env env, Value value) Evaluates the expression.
boolean	evalIsset(Env env) Evaluates the expression as an isset() statement.
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, createClassField, createClassField, createDeref, createFieldGet, createFieldGet, createIsset, evalArgs, evalArrayAssign, evalBoolean, evalChar, evalConstant, evalConstantPrefix, evalConstantSuffix, evalDirty, evalDouble, evalLong, evalPostIncrement, evalPreIncrement, 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, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

_objExpr

protected final Expr _objExpr

_nameExpr

protected final Expr _nameExpr

Constructor Detail

ObjectFieldVarExpr

public ObjectFieldVarExpr(Location location,
                          Expr objExpr,
                          Expr nameExpr)

ObjectFieldVarExpr

public ObjectFieldVarExpr(Expr objExpr,
                          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.

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

evalIsset

public boolean evalIsset(Env env)

Description copied from class: Expr

Evaluates the expression as an isset() statement.

Overrides:

evalIsset in class Expr