--- a/langtools/src/share/classes/com/sun/tools/apt/mirror/util/DeclarationsImpl.java Thu Feb 16 13:01:46 2012 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,135 +0,0 @@
-/*
- * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code 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. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package com.sun.tools.apt.mirror.util;
-
-
-import com.sun.mirror.declaration.*;
-import com.sun.mirror.util.Declarations;
-import com.sun.tools.apt.mirror.declaration.DeclarationImpl;
-import com.sun.tools.apt.mirror.declaration.MethodDeclarationImpl;
-import com.sun.tools.apt.mirror.util.DeclarationsImpl;
-import com.sun.tools.apt.mirror.AptEnv;
-import com.sun.tools.javac.code.*;
-import com.sun.tools.javac.code.Symbol.*;
-import com.sun.tools.javac.util.Context;
-
-import static com.sun.tools.javac.code.Kinds.*;
-
-
-/**
- * Implementation of Declarations utility methods for annotation processors
- */
-@SuppressWarnings("deprecation")
-public class DeclarationsImpl implements Declarations {
-
- private final AptEnv env;
-
-
- private static final Context.Key<Declarations> declarationsKey =
- new Context.Key<Declarations>();
-
- public static Declarations instance(Context context) {
- Declarations instance = context.get(declarationsKey);
- if (instance == null) {
- instance = new DeclarationsImpl(context);
- }
- return instance;
- }
-
- private DeclarationsImpl(Context context) {
- context.put(declarationsKey, this);
- env = AptEnv.instance(context);
- }
-
-
- /**
- * {@inheritDoc}
- * See sections 8.3 and 8.4.6 of
- * <cite>The Java™ Language Specification</cite>
- */
- public boolean hides(MemberDeclaration sub, MemberDeclaration sup) {
- Symbol hider = ((DeclarationImpl) sub).sym;
- Symbol hidee = ((DeclarationImpl) sup).sym;
-
- // Fields only hide fields; methods only methods; types only types.
- // Names must match. Nothing hides itself (just try it).
- if (hider == hidee ||
- hider.kind != hidee.kind ||
- hider.name != hidee.name) {
- return false;
- }
-
- // Only static methods can hide other methods.
- // Methods only hide methods with matching signatures.
- if (hider.kind == MTH) {
- if ((hider.flags() & Flags.STATIC) == 0 ||
- !env.jctypes.isSubSignature(hider.type, hidee.type)) {
- return false;
- }
- }
-
- // Hider must be in a subclass of hidee's class.
- // Note that if M1 hides M2, and M2 hides M3, and M3 is accessible
- // in M1's class, then M1 and M2 both hide M3.
- ClassSymbol hiderClass = hider.owner.enclClass();
- ClassSymbol hideeClass = hidee.owner.enclClass();
- if (hiderClass == null || hideeClass == null ||
- !hiderClass.isSubClass(hideeClass, env.jctypes)) {
- return false;
- }
-
- // Hidee must be accessible in hider's class.
- // The method isInheritedIn is poorly named: it checks only access.
- return hidee.isInheritedIn(hiderClass, env.jctypes);
- }
-
- /**
- * {@inheritDoc}
- * See section 8.4.6.1 of
- * <cite>The Java™ Language Specification</cite>
- */
- public boolean overrides(MethodDeclaration sub, MethodDeclaration sup) {
- MethodSymbol overrider = ((MethodDeclarationImpl) sub).sym;
- MethodSymbol overridee = ((MethodDeclarationImpl) sup).sym;
- ClassSymbol origin = (ClassSymbol) overrider.owner;
-
- return overrider.name == overridee.name &&
-
- // not reflexive as per JLS
- overrider != overridee &&
-
- // we don't care if overridee is static, though that wouldn't
- // compile
- !overrider.isStatic() &&
-
- // overrider, whose declaring type is the origin, must be
- // in a subtype of overridee's type
- env.jctypes.asSuper(origin.type, overridee.owner) != null &&
-
- // check access and signatures; don't check return types
- overrider.overrides(overridee, origin, env.jctypes, false);
- }
-}