com.caucho.quercus.expr
Class VarVarExpr

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

Direct Known Subclasses:

VarVarExprPro

public class VarVarExpr
extends AbstractVarExpr

Represents a PHP variable expression.

Field Summary

protected Expr

_var

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

COMPILE_ARG_MAX

Constructor Summary

VarVarExpr(Expr var)

VarVarExpr(Location location, Expr var)

Method Summary

Value	eval(Env env) Evaluates the expression.
Value	evalArg(Env env, boolean isTop) Evaluates the expression.
Value	evalArray(Env env) Evaluates the expression, converting to an array if necessary.
Value	evalAssignRef(Env env, Value value) Evaluates the expression.
void	evalUnset(Env env) Evaluates the expression.
Var	evalVar(Env env) Evaluates the expression.
Expr	getExpr()
java.lang.String	toString()

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

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

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

canRead, createAssignFrom, createCall, createClassConst, createClassField, createClassField, createDeref, createFieldGet, createFieldGet, createIsset, evalArgs, evalArrayAssign, evalBoolean, evalChar, evalConstant, evalConstantPrefix, evalConstantSuffix, evalDirty, evalDouble, evalIsset, 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

_var

protected final Expr _var

Constructor Detail

VarVarExpr

public VarVarExpr(Location location,
                  Expr var)

VarVarExpr

public VarVarExpr(Expr var)

Method Detail

getExpr

public Expr getExpr()

eval

public Value eval(Env env)

Evaluates the expression.

Specified by:

eval 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.

evalUnset

public void evalUnset(Env env)

Evaluates the expression.

Specified by:

evalUnset in class AbstractVarExpr

Parameters:

env - the calling environment.

evalVar

public Var evalVar(Env env)

Evaluates the expression.

Specified by:

evalVar in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

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.

evalArray

public Value evalArray(Env env)

Evaluates the expression, converting to an array if necessary.

Overrides:

evalArray in class AbstractVarExpr

Parameters:

env - the calling environment.

Returns:

the expression value.

toString

public java.lang.String toString()

Overrides:

toString in class Expr