1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/com/sun/tools/javac/api/JavacScope.java Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,140 @@
1.4 +/*
1.5 + * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Sun designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Sun in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.25 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.26 + * have any questions.
1.27 + */
1.28 +
1.29 +package com.sun.tools.javac.api;
1.30 +
1.31 +import java.io.IOException;
1.32 +import java.lang.ref.SoftReference;
1.33 +import java.util.Iterator;
1.34 +
1.35 +import javax.lang.model.element.Element;
1.36 +import javax.lang.model.element.ExecutableElement;
1.37 +import javax.lang.model.element.TypeElement;
1.38 +import javax.tools.JavaFileObject;
1.39 +
1.40 +import com.sun.source.tree.Tree;
1.41 +import com.sun.source.util.SourcePositions;
1.42 +import com.sun.source.util.TreePath;
1.43 +import com.sun.source.util.Trees;
1.44 +import com.sun.tools.javac.code.Scope;
1.45 +import com.sun.tools.javac.code.Symbol.ClassSymbol;
1.46 +import com.sun.tools.javac.comp.Attr;
1.47 +import com.sun.tools.javac.comp.AttrContext;
1.48 +import com.sun.tools.javac.comp.Enter;
1.49 +import com.sun.tools.javac.comp.Env;
1.50 +import com.sun.tools.javac.comp.MemberEnter;
1.51 +import com.sun.tools.javac.comp.Resolve;
1.52 +import com.sun.tools.javac.tree.JCTree.JCClassDecl;
1.53 +import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
1.54 +import com.sun.tools.javac.tree.JCTree.JCExpression;
1.55 +import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
1.56 +import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
1.57 +import com.sun.tools.javac.tree.JCTree;
1.58 +import com.sun.tools.javac.tree.TreeCopier;
1.59 +import com.sun.tools.javac.tree.TreeInfo;
1.60 +import com.sun.tools.javac.tree.TreeMaker;
1.61 +import com.sun.tools.javac.util.Context;
1.62 +import com.sun.tools.javac.util.List;
1.63 +import com.sun.tools.javac.util.Log;
1.64 +
1.65 +import static com.sun.source.tree.Tree.Kind.*;
1.66 +
1.67 +
1.68 +/**
1.69 + * Provides an implementation of Scope.
1.70 + *
1.71 + * <p><b>This is NOT part of any API supported by Sun Microsystems.
1.72 + * If you write code that depends on this, you do so at your own
1.73 + * risk. This code and its internal interfaces are subject to change
1.74 + * or deletion without notice.</b></p>
1.75 + *
1.76 + * @author Jonathan Gibbons;
1.77 + */
1.78 +public class JavacScope implements com.sun.source.tree.Scope {
1.79 + protected final Env<AttrContext> env;
1.80 +
1.81 + /** Creates a new instance of JavacScope */
1.82 + JavacScope(Env<AttrContext> env) {
1.83 + env.getClass(); // null-check
1.84 + this.env = env;
1.85 + }
1.86 +
1.87 + public JavacScope getEnclosingScope() {
1.88 + if (env.outer != null && env.outer != env)
1.89 + return new JavacScope(env.outer);
1.90 + else {
1.91 + // synthesize an outermost "star-import" scope
1.92 + return new JavacScope(env) {
1.93 + public boolean isStarImportScope() {
1.94 + return true;
1.95 + }
1.96 + public JavacScope getEnclosingScope() {
1.97 + return null;
1.98 + }
1.99 + public Iterable<? extends Element> getLocalElements() {
1.100 + return env.toplevel.starImportScope.getElements();
1.101 + }
1.102 + };
1.103 + }
1.104 + }
1.105 +
1.106 + public TypeElement getEnclosingClass() {
1.107 + // hide the dummy class that javac uses to enclose the top level declarations
1.108 + return (env.outer == null || env.outer == env ? null : env.enclClass.sym);
1.109 + }
1.110 +
1.111 + public ExecutableElement getEnclosingMethod() {
1.112 + return (env.enclMethod == null ? null : env.enclMethod.sym);
1.113 + }
1.114 +
1.115 + public Iterable<? extends Element> getLocalElements() {
1.116 + return env.info.getLocalElements();
1.117 + }
1.118 +
1.119 + public Env<AttrContext> getEnv() {
1.120 + return env;
1.121 + }
1.122 +
1.123 + public boolean isStarImportScope() {
1.124 + return false;
1.125 + }
1.126 +
1.127 + public boolean equals(Object other) {
1.128 + if (other instanceof JavacScope) {
1.129 + JavacScope s = (JavacScope) other;
1.130 + return (env.equals(s.env)
1.131 + && isStarImportScope() == s.isStarImportScope());
1.132 + } else
1.133 + return false;
1.134 + }
1.135 +
1.136 + public int hashCode() {
1.137 + return env.hashCode() + (isStarImportScope() ? 1 : 0);
1.138 + }
1.139 +
1.140 + public String toString() {
1.141 + return "JavacScope[env=" + env + ",starImport=" + isStarImportScope() + "]";
1.142 + }
1.143 +}
