134 lines
4.9 KiB
Java
134 lines
4.9 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8080842
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* @summary Ensure Scope impl can cope with remove() when a field and method share the name.
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* @modules jdk.compiler/com.sun.tools.javac.code
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* jdk.compiler/com.sun.tools.javac.file
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* jdk.compiler/com.sun.tools.javac.util
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*/
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import com.sun.tools.javac.util.*;
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import com.sun.tools.javac.code.*;
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import com.sun.tools.javac.code.Scope.*;
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import com.sun.tools.javac.code.Symbol;
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import com.sun.tools.javac.code.Symbol.*;
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import com.sun.tools.javac.file.JavacFileManager;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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public class RemoveSymbolUnitTest {
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Context context;
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Names names;
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Symtab symtab;
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public static void main(String... args) throws Exception {
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new RemoveSymbolUnitTest().run();
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}
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public void run() {
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context = new Context();
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JavacFileManager.preRegister(context); // required by ClassReader which is required by Symtab
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names = Names.instance(context);
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symtab = Symtab.instance(context);
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Name hasNext = names.fromString("hasNext");
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ClassSymbol clazz = new ClassSymbol(0,
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names.fromString("X"),
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Type.noType,
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symtab.unnamedModule.unnamedPackage);
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VarSymbol v = new VarSymbol(0, hasNext, Type.noType, clazz);
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MethodSymbol m = new MethodSymbol(0, hasNext, Type.noType, clazz);
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// Try enter and remove in different shuffled combinations.
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// working with fresh scope each time.
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WriteableScope cs = writeableScope(clazz, v, m);
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cs.remove(v);
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Symbol s = cs.findFirst(hasNext);
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if (s != m)
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throw new AssertionError("Wrong symbol");
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cs = writeableScope(clazz, m, v);
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cs.remove(v);
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s = cs.findFirst(hasNext);
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if (s != m)
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throw new AssertionError("Wrong symbol");
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cs = writeableScope(clazz, v, m);
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cs.remove(m);
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s = cs.findFirst(hasNext);
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if (s != v)
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throw new AssertionError("Wrong symbol");
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cs = writeableScope(clazz);
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cs.enter(m);
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cs.enter(v);
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cs.remove(m);
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s = cs.findFirst(hasNext);
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if (s != v)
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throw new AssertionError("Wrong symbol");
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// Test multiple removals in the same scope.
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VarSymbol v1 = new VarSymbol(0, names.fromString("name1"), Type.noType, clazz);
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VarSymbol v2 = new VarSymbol(0, names.fromString("name2"), Type.noType, clazz);
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VarSymbol v3 = new VarSymbol(0, names.fromString("name3"), Type.noType, clazz);
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VarSymbol v4 = new VarSymbol(0, names.fromString("name4"), Type.noType, clazz);
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cs = writeableScope(clazz, v1, v2, v3, v4);
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cs.remove(v2);
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assertRemainingSymbols(cs, v1, v3, v4);
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cs.remove(v3);
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assertRemainingSymbols(cs, v1, v4);
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cs.remove(v1);
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assertRemainingSymbols(cs, v4);
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cs.remove(v4);
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assertRemainingSymbols(cs);
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}
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private WriteableScope writeableScope(ClassSymbol classSymbol, Symbol... symbols) {
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WriteableScope cs = WriteableScope.create(classSymbol);
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for (Symbol symbol : symbols) {
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cs.enter(symbol);
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}
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return cs;
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}
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private void assertRemainingSymbols(WriteableScope cs, Symbol... symbols) {
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List<Symbol> expectedSymbols = Arrays.asList(symbols);
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List<Symbol> actualSymbols = new ArrayList<>();
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cs.getSymbols().forEach(symbol -> actualSymbols.add(symbol));
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// The symbols are stored in reverse order
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Collections.reverse(actualSymbols);
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if (!actualSymbols.equals(expectedSymbols)) {
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throw new AssertionError(
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String.format("Wrong symbols: %s. Expected %s", actualSymbols, expectedSymbols));
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}
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}
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}
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