jdk8-mips64-public/langtools: comparison test/tools/javac/lambda/TestSelfRef.java

-:843d3b191773
+:01c9d4161882
+/*
+* Copyright (c) 2012, 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.
+*
+* 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.
+*/
+/*
+* @test
+* @bug 8003280
+* @summary Add lambda tests
+*  Check that self/forward references from lambda expressions behave
+*          consistently w.r.t. local inner classes
+*/
+import com.sun.source.util.JavacTask;
+import java.net.URI;
+import java.util.Arrays;
+import javax.tools.Diagnostic;
+import javax.tools.JavaCompiler;
+import javax.tools.JavaFileObject;
+import javax.tools.SimpleJavaFileObject;
+import javax.tools.StandardJavaFileManager;
+import javax.tools.ToolProvider;
+public class TestSelfRef {
+static int checkCount = 0;
+enum RefKind {
+SELF_LAMBDA("SAM s = x->{ System.out.println(s); };", true, false),
+FORWARD_LAMBDA("SAM s = x->{ System.out.println(f); };\nObject f = null;", false, true),
+SELF_ANON("Object s = new Object() { void test() { System.out.println(s); } };", true, false),
+FORWARD_ANON("Object s = new Object() { void test() { System.out.println(f); } }; Object f = null;", false, true);
+String refStr;
+boolean selfRef;
+boolean forwardRef;
+private RefKind(String refStr, boolean selfRef, boolean forwardRef) {
+this.refStr = refStr;
+this.selfRef = selfRef;
+this.forwardRef = forwardRef;
+}
+}
+enum EnclosingKind {
+TOPLEVEL("class C { #S }"),
+MEMBER_INNER("class Outer { class C { #S } }"),
+NESTED_INNER("class Outer { static class C { #S } }");
+String enclStr;
+private EnclosingKind(String enclStr) {
+this.enclStr = enclStr;
+}
+}
+enum InnerKind {
+NONE("#R"),
+LOCAL_NONE("class Local { #R }"),
+LOCAL_MTH("class Local { void test() { #R } }"),
+ANON_NONE("new Object() { #R };"),
+ANON_MTH("new Object() { void test() { #R } };");
+String innerStr;
+private InnerKind(String innerStr) {
+this.innerStr = innerStr;
+}
+boolean inMethodContext(SiteKind sk) {
+switch (this) {
+case LOCAL_MTH:
+case ANON_MTH: return true;
+case NONE: return sk != SiteKind.NONE;
+default:
+return false;
+}
+}
+}
+enum SiteKind {
+NONE("#I"),
+STATIC_INIT("static { #I }"),
+INSTANCE_INIT("{ #I }"),
+CONSTRUCTOR("C() { #I }"),
+METHOD("void test() { #I }");
+String siteStr;
+private SiteKind(String siteStr) {
+this.siteStr = siteStr;
+}
+}
+public static void main(String... args) throws Exception {
+//create default shared JavaCompiler - reused across multiple compilations
+JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
+StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
+for (EnclosingKind ek : EnclosingKind.values()) {
+for (SiteKind sk : SiteKind.values()) {
+if (sk == SiteKind.STATIC_INIT && ek == EnclosingKind.MEMBER_INNER)
+continue;
+for (InnerKind ik : InnerKind.values()) {
+if (ik != InnerKind.NONE && sk == SiteKind.NONE)
+break;
+for (RefKind rk : RefKind.values()) {
+new TestSelfRef(ek, sk, ik, rk).run(comp, fm);
+}
+}
+}
+}
+System.out.println("Total check executed: " + checkCount);
+}
+EnclosingKind ek;
+SiteKind sk;
+InnerKind ik;
+RefKind rk;
+JavaSource source;
+DiagnosticChecker diagChecker;
+TestSelfRef(EnclosingKind ek, SiteKind sk, InnerKind ik, RefKind rk) {
+this.ek = ek;
+this.sk = sk;
+this.ik = ik;
+this.rk = rk;
+this.source = new JavaSource();
+this.diagChecker = new DiagnosticChecker();
+}
+class JavaSource extends SimpleJavaFileObject {
+String bodyTemplate = "interface SAM { void test(Object o); }\n#B";
+String source;
+public JavaSource() {
+super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
+source = bodyTemplate.replace("#B",
+ek.enclStr.replace("#S", sk.siteStr.replace("#I", ik.innerStr.replace("#R", rk.refStr))));
+}
+@Override
+public CharSequence getCharContent(boolean ignoreEncodingErrors) {
+return source;
+}
+}
+void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
+JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
+null, null, Arrays.asList(source));
+try {
+ct.analyze();
+} catch (Throwable ex) {
+throw new AssertionError("Error thron when compiling the following code:\n" + source.getCharContent(true));
+}
+check();
+}
+void check() {
+//illegal forward ref
+boolean errorExpected = ik.inMethodContext(sk) &&
+(rk.selfRef || rk.forwardRef);
+if (diagChecker.errorFound != errorExpected) {
+throw new Error("invalid diagnostics for source:\n" +
+source.getCharContent(true) +
+"\nFound error: " + diagChecker.errorFound +
+"\nExpected error: " + errorExpected);
+}
+}
+static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
+boolean errorFound;
+public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
+if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
+errorFound = true;
+}
+}
+}
+}

Mercurial > jdk8-mips64-public > langtools / file comparison

comparison: test/tools/javac/lambda/TestSelfRef.java

test/tools/javac/lambda/TestSelfRef.java