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

-:9448fe783fd2
+:3343b22e2761
+/*
+* Copyright (c) 2011, 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 7115052
+* @summary Add parser support for method references
+*/
+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 MethodReferenceParserTest {
+static int checkCount = 0;
+enum ReferenceKind {
+METHOD_REF("#Q##Gm"),
+CONSTRUCTOR_REF("#Q##Gnew"),
+ERR_SUPER("#Q##Gsuper"),
+ERR_METH0("#Q##Gm()"),
+ERR_METH1("#Q##Gm(X)"),
+ERR_CONSTR0("#Q##Gnew()"),
+ERR_CONSTR1("#Q##Gnew(X)");
+String referenceTemplate;
+ReferenceKind(String referenceTemplate) {
+this.referenceTemplate = referenceTemplate;
+}
+String getReferenceString(QualifierKind qk, GenericKind gk) {
+return referenceTemplate
+.replaceAll("#Q", qk.qualifier)
+.replaceAll("#G", gk.typeParameters);
+}
+boolean erroneous() {
+switch (this) {
+case ERR_SUPER:
+case ERR_METH0:
+case ERR_METH1:
+case ERR_CONSTR0:
+case ERR_CONSTR1:
+return true;
+default: return false;
+}
+}
+}
+enum GenericKind {
+NONE(""),
+ONE("<X>"),
+TWO("<X,Y>");
+String typeParameters;
+GenericKind(String typeParameters) {
+this.typeParameters = typeParameters;
+}
+}
+enum QualifierKind {
+THIS("this"),
+SUPER("super"),
+NEW("new Foo()"),
+METHOD("m()"),
+FIELD("a.f"),
+UBOUND_SIMPLE("A"),
+UNBOUND_GENERIC1("A<X>"),
+UNBOUND_GENERIC2("A<X, Y>"),
+UNBOUND_GENERIC3("A<? extends X, ? super Y>");
+String qualifier;
+QualifierKind(String qualifier) {
+this.qualifier = qualifier;
+}
+}
+enum ExprKind {
+NONE("#R#S"),
+SINGLE_PAREN1("(#R#S)"),
+SINGLE_PAREN2("(#R)#S"),
+DOUBLE_PAREN1("((#R#S))"),
+DOUBLE_PAREN2("((#R)#S)"),
+DOUBLE_PAREN3("((#R))#S");
+String expressionTemplate;
+ExprKind(String expressionTemplate) {
+this.expressionTemplate = expressionTemplate;
+}
+String expressionString(ReferenceKind rk, QualifierKind qk, GenericKind gk, SubExprKind sk) {
+return expressionTemplate
+.replaceAll("#R", rk.getReferenceString(qk, gk))
+.replaceAll("#S", sk.subExpression);
+}
+}
+enum SubExprKind {
+NONE(""),
+SELECT_FIELD(".f"),
+SELECT_METHOD(".f()"),
+SELECT_NEW(".new Foo()"),
+POSTINC("++"),
+POSTDEC("--");
+String subExpression;
+SubExprKind(String subExpression) {
+this.subExpression = subExpression;
+}
+}
+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 (ReferenceKind rk : ReferenceKind.values()) {
+for (QualifierKind qk : QualifierKind.values()) {
+for (GenericKind gk : GenericKind.values()) {
+for (SubExprKind sk : SubExprKind.values()) {
+for (ExprKind ek : ExprKind.values()) {
+new MethodReferenceParserTest(rk, qk, gk, sk, ek).run(comp, fm);
+}
+}
+}
+}
+}
+System.out.println("Total check executed: " + checkCount);
+}
+ReferenceKind rk;
+QualifierKind qk;
+GenericKind gk;
+SubExprKind sk;
+ExprKind ek;
+JavaSource source;
+DiagnosticChecker diagChecker;
+MethodReferenceParserTest(ReferenceKind rk, QualifierKind qk, GenericKind gk, SubExprKind sk, ExprKind ek) {
+this.rk = rk;
+this.qk = qk;
+this.gk = gk;
+this.sk = sk;
+this.ek = ek;
+this.source = new JavaSource();
+this.diagChecker = new DiagnosticChecker();
+}
+class JavaSource extends SimpleJavaFileObject {
+String template = "class Test {\n" +
+"   SAM s = #E;\n" +
+"}";
+String source;
+public JavaSource() {
+super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
+source = template.replaceAll("#E", ek.expressionString(rk, qk, gk, sk));
+}
+@Override
+public CharSequence getCharContent(boolean ignoreEncodingErrors) {
+return source;
+}
+}
+void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
+JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
+Arrays.asList("-XDallowMethodReferences"), null, Arrays.asList(source));
+try {
+ct.parse();
+} catch (Throwable ex) {
+throw new AssertionError("Error thrown when parsing the following source:\n" + source.getCharContent(true));
+}
+check();
+}
+void check() {
+checkCount++;
+if (diagChecker.errorFound != rk.erroneous()) {
+throw new Error("invalid diagnostics for source:\n" +
+source.getCharContent(true) +
+"\nFound error: " + diagChecker.errorFound +
+"\nExpected error: " + rk.erroneous());
+}
+}
+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/MethodReferenceParserTest.java

test/tools/javac/lambda/MethodReferenceParserTest.java