jdk8-mips64-public/langtools: test/tools/javac/lambda/typeInference/combo/TypeInferenceComboTest.java@01c9d4161882 (annotated)

test/tools/javac/lambda/typeInference/combo/TypeInferenceComboTest.java@01c9d4161882 (annotated)

test/tools/javac/lambda/typeInference/combo/TypeInferenceComboTest.java

Sat, 17 Nov 2012 19:01:03 +0000

author: mcimadamore
date: Sat, 17 Nov 2012 19:01:03 +0000
changeset 1415: 01c9d4161882
child 1482: 954541f13717
permissions: -rw-r--r--

8003280: Add lambda tests
Summary: Turn on lambda expression, method reference and default method support
Reviewed-by: jjg

 /*
  * 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 8003280
  * @summary Add lambda tests
  *  perform automated checks in type inference in lambda expressions in different contexts
  * @compile  TypeInferenceComboTest.java
  * @run main/timeout=360 TypeInferenceComboTest
  */
 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.ToolProvider;
 import javax.tools.StandardJavaFileManager;
 public class TypeInferenceComboTest {
     enum Context {
         ASSIGNMENT("SAM#Type s = #LBody;"),
         METHOD_CALL("#GenericDeclKind void method1(SAM#Type s) { }\n" +
                     "void method2() {\n" +
                     "    method1(#LBody);\n" +
                     "}"),
         RETURN_OF_METHOD("SAM#Type method1() {\n" +
                 "    return #LBody;\n" +
                 "}"),
         LAMBDA_RETURN_EXPRESSION("SAM2 s2 = () -> {return (SAM#Type)#LBody;};\n"),
         ARRAY_INITIALIZER("Object[] oarray = {\"a\", 1, (SAM#Type)#LBody};");
         String context;
         Context(String context) {
             this.context = context;
         }
         String getContext(SamKind sk, TypeKind samTargetT, Keyword kw, TypeKind parameterT, TypeKind returnT, LambdaKind lk, ParameterKind pk, GenericDeclKind gdk, LambdaBody lb) {
             String result = context;
             if (sk == SamKind.GENERIC) {
                 if(this == Context.METHOD_CALL) {
                     result = result.replaceAll("#GenericDeclKind", gdk.getGenericDeclKind(samTargetT));
                     if(gdk == GenericDeclKind.NON_GENERIC)
                         result = result.replaceAll("#Type", "<" + samTargetT.typeStr + ">");
                     else //#GenericDeclKind is <T> or <T extends xxx>
                         result = result.replaceAll("#Type", "<T>");
                 }
                 else {
                     if(kw == Keyword.VOID)
                         result = result.replaceAll("#Type", "<" + samTargetT.typeStr + ">");
                     else
                         result = result.replaceAll("#Type", "<? " + kw.keyStr + " " + samTargetT.typeStr + ">");
                 }
             }
             else
                 result = result.replaceAll("#Type", "").replaceAll("#GenericDeclKind", "");
             return result.replaceAll("#LBody", lb.getLambdaBody(samTargetT, parameterT, returnT, lk, pk));
         }
     }
     enum SamKind {
         GENERIC("interface SAM<T> { #R m(#ARG); }"),
         NON_GENERIC("interface SAM { #R m(#ARG); }");
         String sam_str;
         SamKind(String sam_str) {
             this.sam_str = sam_str;
         }
         String getSam(TypeKind parameterT, TypeKind returnT) {
             return sam_str.replaceAll("#ARG", parameterT == TypeKind.VOID ? "" : parameterT.typeStr + " arg")
                           .replaceAll("#R", returnT.typeStr);
         }
     }
     enum TypeKind {
         VOID("void", ""),
         STRING("String", "\"hello\""),
         INTEGER("Integer", "1"),
         INT("int", "0"),
         COMPARATOR("java.util.Comparator<String>", "(java.util.Comparator<String>)(a, b) -> a.length()-b.length()"),
         SAM("SAM2", "null"),
         GENERIC("T", null);
         String typeStr;
         String valStr;
         TypeKind(String typeStr, String valStr) {
             this.typeStr = typeStr;
             this.valStr = valStr;
         }
     }
     enum LambdaKind {
         EXPRESSION("#VAL"),
         STATEMENT("{return #VAL;}");
         String stmt;
         LambdaKind(String stmt) {
             this.stmt = stmt;
         }
     }
     enum ParameterKind {
         EXPLICIT("#TYPE"),
         IMPLICIT("");
         String paramTemplate;
         ParameterKind(String paramTemplate) {
              this.paramTemplate = paramTemplate;
         }
     }
     enum Keyword {
         SUPER("super"),
         EXTENDS("extends"),
         VOID("");
         String keyStr;
         Keyword(String keyStr) {
             this.keyStr = keyStr;
         }
     }
     enum LambdaBody {
         RETURN_VOID("() -> #RET"),//no parameters, return type is one of the TypeKind
         RETURN_ARG("(#PK arg) -> #RET");//has parameters, return type is one of the TypeKind
         String bodyStr;
         LambdaBody(String bodyStr) {
             this.bodyStr = bodyStr;
         }
         String getLambdaBody(TypeKind samTargetT, TypeKind parameterT, TypeKind returnT, LambdaKind lk, ParameterKind pk) {
             String result = bodyStr.replaceAll("#PK", pk.paramTemplate);
             if(result.contains("#TYPE")) {
                 if (parameterT == TypeKind.GENERIC && this != RETURN_VOID)
                     result = result.replaceAll("#TYPE", samTargetT == null? "": samTargetT.typeStr);
                 else
                     result = result.replaceAll("#TYPE", parameterT.typeStr);
             }
             if (this == RETURN_ARG && parameterT == returnT)
                 return result.replaceAll("#RET", lk.stmt.replaceAll("#VAL", "arg"));
             else {
                 if(returnT != TypeKind.GENERIC)
                     return result.replaceAll("#RET", lk.stmt.replaceAll("#VAL", (returnT==TypeKind.VOID && lk==LambdaKind.EXPRESSION)? "{}" : returnT.valStr));
                 else
                     return result.replaceAll("#RET", lk.stmt.replaceAll("#VAL", samTargetT.valStr));
             }
         }
     }
     enum GenericDeclKind {
         NON_GENERIC(""),
         GENERIC_NOBOUND("<T>"),
         GENERIC_BOUND("<T extends #ExtendedType>");
         String typeStr;
         GenericDeclKind(String typeStr) {
             this.typeStr = typeStr;
         }
         String getGenericDeclKind(TypeKind et) {
             return typeStr.replaceAll("#ExtendedType", et==null? "":et.typeStr);
         }
     }
     boolean checkTypeInference() {
         if (parameterType == TypeKind.VOID) {
             if (lambdaBodyType != LambdaBody.RETURN_VOID)
                 return false;
         }
         else if (lambdaBodyType != LambdaBody.RETURN_ARG)
             return false;
         if (  genericDeclKind == GenericDeclKind.GENERIC_NOBOUND || genericDeclKind == GenericDeclKind.GENERIC_BOUND ) {
             if ( parameterType == TypeKind.GENERIC && parameterKind == ParameterKind.IMPLICIT) //cyclic inference
                 return false;
         }
         return true;
     }
     String templateStr = "#C\n" +
                          "interface SAM2 {\n" +
                          "    SAM m();\n" +
                          "}\n";
     SourceFile samSourceFile = new SourceFile("Sam.java", templateStr) {
         public String toString() {
             return template.replaceAll("#C", samKind.getSam(parameterType, returnType));
         }
     };
     SourceFile clientSourceFile = new SourceFile("Client.java",
                                                  "class Client { \n" +
                                                  "    #Context\n" +
                                                  "}") {
         public String toString() {
             return template.replaceAll("#Context", context.getContext(samKind, samTargetType, keyword, parameterType, returnType, lambdaKind, parameterKind, genericDeclKind, lambdaBodyType));
         }
     };
     void test() throws Exception {
         System.out.println("kk:");
         StringBuilder sb = new StringBuilder("SamKind:");
         sb.append(samKind).append(" SamTargetType:").append(samTargetType).append(" ParameterType:").append(parameterType)
             .append(" ReturnType:").append(returnType).append(" Context:").append(context).append(" LambdaKind:").append(lambdaKind)
             .append(" LambdaBodyType:").append(lambdaBodyType).append(" ParameterKind:").append(parameterKind).append(" Keyword:").append(keyword);
         System.out.println(sb);
         DiagnosticChecker dc = new DiagnosticChecker();
         JavacTask ct = (JavacTask)comp.getTask(null, fm, dc, null, null, Arrays.asList(samSourceFile, clientSourceFile));
         ct.analyze();
         if (dc.errorFound == checkTypeInference()) {
             throw new AssertionError(samSourceFile + "\n\n" + clientSourceFile + "\n" + parameterType + " " + returnType);
         }
     }
     abstract class SourceFile extends SimpleJavaFileObject {
         protected String template;
         public SourceFile(String filename, String template) {
             super(URI.create("myfo:/" + filename), JavaFileObject.Kind.SOURCE);
             this.template = template;
         }
         @Override
         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
             return toString();
         }
         public abstract String toString();
     }
     static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
         boolean errorFound = false;
         public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
             if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
                 errorFound = true;
             }
         }
     }
     SamKind samKind;
     TypeKind samTargetType;
     TypeKind parameterType;
     TypeKind returnType;
     Context context;
     LambdaBody lambdaBodyType;
     LambdaKind lambdaKind;
     ParameterKind parameterKind;
     Keyword keyword;
     GenericDeclKind genericDeclKind;
     static JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
     static StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
     TypeInferenceComboTest(SamKind sk, TypeKind samTargetT, TypeKind parameterT, TypeKind returnT, LambdaBody lb, Context c, LambdaKind lk, ParameterKind pk, Keyword kw, GenericDeclKind gdk) {
         samKind = sk;
         samTargetType = samTargetT;
         parameterType = parameterT;
         returnType = returnT;
         context = c;
         lambdaKind = lk;
         parameterKind = pk;
         keyword = kw;
         lambdaBodyType = lb;
         genericDeclKind = gdk;
     }
     public static void main(String[] args) throws Exception {
         for(Context ct : Context.values()) {
             for (TypeKind returnT : TypeKind.values()) {
                 for (TypeKind parameterT : TypeKind.values()) {
                     for(LambdaBody lb : LambdaBody.values()) {
                         for (ParameterKind parameterK : ParameterKind.values()) {
                             for(LambdaKind lambdaK : LambdaKind.values()) {
                                 for (SamKind sk : SamKind.values()) {
                                     if (sk == SamKind.NON_GENERIC) {
                                         if(parameterT != TypeKind.GENERIC && returnT != TypeKind.GENERIC )
                                             new TypeInferenceComboTest(sk, null, parameterT, returnT, lb, ct, lambdaK, parameterK, null, null).test();
                                     }
                                     else if (sk == SamKind.GENERIC) {
                                         for (Keyword kw : Keyword.values()) {
                                             for (TypeKind samTargetT : TypeKind.values()) {
                                                 if(samTargetT != TypeKind.VOID && samTargetT != TypeKind.INT && samTargetT != TypeKind.GENERIC
                                                    && (parameterT == TypeKind.GENERIC || returnT == TypeKind.GENERIC)) {
                                                     if(ct != Context.METHOD_CALL) {
                                                         new TypeInferenceComboTest(sk, samTargetT, parameterT, returnT, lb, ct, lambdaK, parameterK, kw, null).test();
                                                     }
                                                     else {//Context.METHOD_CALL
                                                         for (GenericDeclKind gdk : GenericDeclKind.values())
                                                             new TypeInferenceComboTest(sk, samTargetT, parameterT, returnT, lb, ct, lambdaK, parameterK, kw, gdk).test();
                                                     }
                                                 }
                                             }
                                         }
                                     }
                                 }
                             }
                         }
                     }
                 }
             }
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/lambda/typeInference/combo/TypeInferenceComboTest.java@01c9d4161882 (annotated)

test/tools/javac/lambda/typeInference/combo/TypeInferenceComboTest.java