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A PHP engine implemented in 100% Java
/*
* Copyright (c) 1998-2014 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Nam Nguyen
*/
package com.caucho.quercus.program;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.FieldVisibility;
import com.caucho.quercus.env.StringValue;
import com.caucho.quercus.env.Value;
import com.caucho.quercus.expr.Expr;
public class ClassField
{
private final StringValue _name;
private final StringValue _canonicalName;
private final String _declaringClassName;
private Expr _initValue;
private boolean _isTraitField;
private final String _comment;
public ClassField(StringValue name,
StringValue canonicalName,
String declaringClassName,
Expr initValue,
String comment,
boolean isTraitField)
{
_name = name;
_canonicalName = canonicalName;
_declaringClassName = declaringClassName;
_initValue = initValue;
_comment = comment;
_isTraitField = isTraitField;
}
public ClassField(StringValue name,
String declaringClassName,
Expr initValue,
FieldVisibility visibility,
String comment,
boolean isTraitField)
{
_name = name;
_declaringClassName = declaringClassName;
_initValue = initValue;
_comment = comment;
_isTraitField = isTraitField;
if (visibility.isProtected()) {
StringValue sb = name.createStringBuilder();
_canonicalName = createProtectedCanonicalName(sb, name);
}
else if (visibility.isPrivate()) {
StringValue sb = name.createStringBuilder();
_canonicalName = createPrivateCanonicalName(sb, name, declaringClassName);
}
else {
_canonicalName = name;
}
}
public static StringValue getOrdinaryName(StringValue canonicalName)
{
int p = canonicalName.lastIndexOf('\u0000');
if (p >= 0) {
return canonicalName.substring(p + 1);
}
else {
return canonicalName;
}
}
public static StringValue getCanonicalName(Env env,
String classContext,
StringValue name)
{
ClassDef classDef = env.findClassDef(classContext);
ClassField entry = classDef.getField(name);
if (entry != null) {
return entry.getCanonicalName();
}
return name;
}
public static StringValue createProtectedCanonicalName(StringValue sb,
StringValue name)
{
sb.append('\u0000');
sb.append('*');
sb.append('\u0000');
sb.append(name);
return sb;
}
public static StringValue createPrivateCanonicalName(StringValue name,
String declaringClass)
{
return createPrivateCanonicalName(name.createStringBuilder(), name, declaringClass);
}
public static StringValue createPrivateCanonicalName(StringValue sb,
StringValue name,
String declaringClass)
{
sb.append('\u0000');
sb.append(declaringClass);
sb.append('\u0000');
sb.append(name);
return sb;
}
public static boolean isPublic(StringValue canonicalName)
{
int p = canonicalName.lastIndexOf('\u0000');
return p >= 0;
}
public static boolean isPrivate(StringValue canonicalName)
{
return canonicalName.length() > 3
&& canonicalName.charAt(0) == '\u0000'
&& canonicalName.charAt(1) != '*';
}
public static boolean isProtected(StringValue canonicalName)
{
return canonicalName.length() > 3
&& canonicalName.charAt(0) == '\u0000'
&& canonicalName.charAt(1) == '*'
&& canonicalName.charAt(2) == '\u0000';
}
public static StringValue getDeclaringClass(StringValue sb,
StringValue canonicalName)
{
if (canonicalName.charAt(0) != '\u0000') {
return sb;
}
int len = canonicalName.length();
for (int i = 1; i < len; i++) {
char ch = canonicalName.charAt(i);
if (ch == '\u0000') {
break;
}
else {
sb.append(ch);
}
}
return sb;
}
public String getDeclaringClassName()
{
return _declaringClassName;
}
public StringValue getName()
{
return _name;
}
public StringValue getCanonicalName()
{
return _canonicalName;
}
public Expr getInitExpr()
{
return _initValue;
}
public void setInitExpr(Expr initValue)
{
_initValue = initValue;
}
public Value evalInitExpr(Env env)
{
return _initValue.eval(env).copy();
}
public boolean isPublic()
{
return ! isProtected() && ! isPrivate();
}
public boolean isProtected()
{
return isProtected(_canonicalName);
}
public boolean isPrivate()
{
return isPrivate(_canonicalName);
}
public boolean isTraitField()
{
return _isTraitField;
}
public String getComment()
{
return _comment;
}
@Override
public String toString()
{
String access = "";
if (isPrivate()) {
access = "private:";
}
else if (isProtected()) {
access = "protected:";
}
return getClass().getSimpleName() + "[" + _declaringClassName + ":" + access + _name + "]";
}
}