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test/tools/javac/lambda/typeInference/combo/TypeInferenceComboTest.java@959103a6100f (annotated)

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

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/**
aoqi@0	25	* @test
aoqi@0	26	* @bug 8003280 8006694
aoqi@0	27	* @summary Add lambda tests
aoqi@0	28	* perform automated checks in type inference in lambda expressions
aoqi@0	29	* in different contexts
aoqi@0	30	* temporarily workaround combo tests are causing time out in several platforms
aoqi@0	31	* @library ../../../lib
aoqi@0	32	* @build JavacTestingAbstractThreadedTest
aoqi@0	33	* @compile TypeInferenceComboTest.java
aoqi@0	34	* @run main/othervm/timeout=360 TypeInferenceComboTest
aoqi@0	35	*/
aoqi@0	36
aoqi@0	37	// use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047)
aoqi@0	38	// see JDK-8006746
aoqi@0	39
aoqi@0	40	import java.net.URI;
aoqi@0	41	import java.util.Arrays;
aoqi@0	42	import javax.tools.Diagnostic;
aoqi@0	43	import javax.tools.JavaFileObject;
aoqi@0	44	import javax.tools.SimpleJavaFileObject;
aoqi@0	45	import com.sun.source.util.JavacTask;
aoqi@0	46
aoqi@0	47	public class TypeInferenceComboTest
aoqi@0	48	extends JavacTestingAbstractThreadedTest
aoqi@0	49	implements Runnable {
aoqi@0	50	enum Context {
aoqi@0	51	ASSIGNMENT("SAM#Type s = #LBody;"),
aoqi@0	52	METHOD_CALL("#GenericDeclKind void method1(SAM#Type s) { }\n" +
aoqi@0	53	"void method2() {\n" +
aoqi@0	54	" method1(#LBody);\n" +
aoqi@0	55	"}"),
aoqi@0	56	RETURN_OF_METHOD("SAM#Type method1() {\n" +
aoqi@0	57	" return #LBody;\n" +
aoqi@0	58	"}"),
aoqi@0	59	LAMBDA_RETURN_EXPRESSION("SAM2 s2 = () -> {return (SAM#Type)#LBody;};\n"),
aoqi@0	60	ARRAY_INITIALIZER("Object[] oarray = {\"a\", 1, (SAM#Type)#LBody};");
aoqi@0	61
aoqi@0	62	String context;
aoqi@0	63
aoqi@0	64	Context(String context) {
aoqi@0	65	this.context = context;
aoqi@0	66	}
aoqi@0	67
aoqi@0	68	String getContext(SamKind sk, TypeKind samTargetT, Keyword kw,
aoqi@0	69	TypeKind parameterT, TypeKind returnT, LambdaKind lk,
aoqi@0	70	ParameterKind pk, GenericDeclKind gdk, LambdaBody lb) {
aoqi@0	71	String result = context;
aoqi@0	72	if (sk == SamKind.GENERIC) {
aoqi@0	73	if(this == Context.METHOD_CALL) {
aoqi@0	74	result = result.replaceAll("#GenericDeclKind",
aoqi@0	75	gdk.getGenericDeclKind(samTargetT));
aoqi@0	76	if(gdk == GenericDeclKind.NON_GENERIC)
aoqi@0	77	result = result.replaceAll("#Type", "<" +
aoqi@0	78	samTargetT.typeStr + ">");
aoqi@0	79	else //#GenericDeclKind is <T> or <T extends xxx>
aoqi@0	80	result = result.replaceAll("#Type", "<T>");
aoqi@0	81	}
aoqi@0	82	else {
aoqi@0	83	if(kw == Keyword.VOID)
aoqi@0	84	result = result.replaceAll("#Type", "<" +
aoqi@0	85	samTargetT.typeStr + ">");
aoqi@0	86	else
aoqi@0	87	result = result.replaceAll("#Type", "<? " + kw.keyStr +
aoqi@0	88	" " + samTargetT.typeStr + ">");
aoqi@0	89	}
aoqi@0	90	}
aoqi@0	91	else
aoqi@0	92	result = result.replaceAll("#Type", "").
aoqi@0	93	replaceAll("#GenericDeclKind", "");
aoqi@0	94
aoqi@0	95	return result.replaceAll("#LBody",
aoqi@0	96	lb.getLambdaBody(samTargetT, parameterT, returnT, lk, pk));
aoqi@0	97	}
aoqi@0	98	}
aoqi@0	99
aoqi@0	100	enum SamKind {
aoqi@0	101	GENERIC("interface SAM<T> { #R m(#ARG); }"),
aoqi@0	102	NON_GENERIC("interface SAM { #R m(#ARG); }");
aoqi@0	103
aoqi@0	104	String sam_str;
aoqi@0	105
aoqi@0	106	SamKind(String sam_str) {
aoqi@0	107	this.sam_str = sam_str;
aoqi@0	108	}
aoqi@0	109
aoqi@0	110	String getSam(TypeKind parameterT, TypeKind returnT) {
aoqi@0	111	return sam_str.replaceAll("#ARG",
aoqi@0	112	parameterT == TypeKind.VOID ?
aoqi@0	113	"" : parameterT.typeStr + " arg")
aoqi@0	114	.replaceAll("#R", returnT.typeStr);
aoqi@0	115	}
aoqi@0	116	}
aoqi@0	117
aoqi@0	118	enum TypeKind {
aoqi@0	119	VOID("void", ""),
aoqi@0	120	STRING("String", "\"hello\""),
aoqi@0	121	INTEGER("Integer", "1"),
aoqi@0	122	INT("int", "0"),
aoqi@0	123	COMPARATOR("java.util.Comparator<String>",
aoqi@0	124	"(java.util.Comparator<String>)(a, b) -> a.length()-b.length()"),
aoqi@0	125	SAM("SAM2", "null"),
aoqi@0	126	GENERIC("T", null);
aoqi@0	127
aoqi@0	128	String typeStr;
aoqi@0	129	String valStr;
aoqi@0	130
aoqi@0	131	TypeKind(String typeStr, String valStr) {
aoqi@0	132	this.typeStr = typeStr;
aoqi@0	133	this.valStr = valStr;
aoqi@0	134	}
aoqi@0	135	}
aoqi@0	136
aoqi@0	137	enum LambdaKind {
aoqi@0	138	EXPRESSION("#VAL"),
aoqi@0	139	STATEMENT("{return #VAL;}");
aoqi@0	140
aoqi@0	141	String stmt;
aoqi@0	142
aoqi@0	143	LambdaKind(String stmt) {
aoqi@0	144	this.stmt = stmt;
aoqi@0	145	}
aoqi@0	146	}
aoqi@0	147
aoqi@0	148	enum ParameterKind {
aoqi@0	149	EXPLICIT("#TYPE"),
aoqi@0	150	IMPLICIT("");
aoqi@0	151
aoqi@0	152	String paramTemplate;
aoqi@0	153
aoqi@0	154	ParameterKind(String paramTemplate) {
aoqi@0	155	this.paramTemplate = paramTemplate;
aoqi@0	156	}
aoqi@0	157	}
aoqi@0	158
aoqi@0	159	enum Keyword {
aoqi@0	160	SUPER("super"),
aoqi@0	161	EXTENDS("extends"),
aoqi@0	162	VOID("");
aoqi@0	163
aoqi@0	164	String keyStr;
aoqi@0	165
aoqi@0	166	Keyword(String keyStr) {
aoqi@0	167	this.keyStr = keyStr;
aoqi@0	168	}
aoqi@0	169	}
aoqi@0	170
aoqi@0	171	enum LambdaBody {
aoqi@0	172	//no parameters, return type is one of the TypeKind
aoqi@0	173	RETURN_VOID("() -> #RET"),
aoqi@0	174	//has parameters, return type is one of the TypeKind
aoqi@0	175	RETURN_ARG("(#PK arg) -> #RET");
aoqi@0	176
aoqi@0	177	String bodyStr;
aoqi@0	178
aoqi@0	179	LambdaBody(String bodyStr) {
aoqi@0	180	this.bodyStr = bodyStr;
aoqi@0	181	}
aoqi@0	182
aoqi@0	183	String getLambdaBody(TypeKind samTargetT, TypeKind parameterT,
aoqi@0	184	TypeKind returnT, LambdaKind lk, ParameterKind pk) {
aoqi@0	185	String result = bodyStr.replaceAll("#PK", pk.paramTemplate);
aoqi@0	186
aoqi@0	187	if(result.contains("#TYPE")) {
aoqi@0	188	if (parameterT == TypeKind.GENERIC && this != RETURN_VOID)
aoqi@0	189	result = result.replaceAll("#TYPE",
aoqi@0	190	samTargetT == null? "": samTargetT.typeStr);
aoqi@0	191	else
aoqi@0	192	result = result.replaceAll("#TYPE", parameterT.typeStr);
aoqi@0	193	}
aoqi@0	194	if (this == RETURN_ARG && parameterT == returnT)
aoqi@0	195	return result.replaceAll("#RET", lk.stmt.replaceAll("#VAL", "arg"));
aoqi@0	196	else {
aoqi@0	197	if(returnT != TypeKind.GENERIC)
aoqi@0	198	return result.replaceAll("#RET", lk.stmt.replaceAll("#VAL",
aoqi@0	199	(returnT==TypeKind.VOID &&
aoqi@0	200	lk==LambdaKind.EXPRESSION) ? "{}" : returnT.valStr));
aoqi@0	201	else
aoqi@0	202	return result.replaceAll("#RET",
aoqi@0	203	lk.stmt.replaceAll("#VAL", samTargetT.valStr));
aoqi@0	204	}
aoqi@0	205	}
aoqi@0	206	}
aoqi@0	207
aoqi@0	208	enum GenericDeclKind {
aoqi@0	209	NON_GENERIC(""),
aoqi@0	210	GENERIC_NOBOUND("<T>"),
aoqi@0	211	GENERIC_BOUND("<T extends #ExtendedType>");
aoqi@0	212	String typeStr;
aoqi@0	213
aoqi@0	214	GenericDeclKind(String typeStr) {
aoqi@0	215	this.typeStr = typeStr;
aoqi@0	216	}
aoqi@0	217
aoqi@0	218	String getGenericDeclKind(TypeKind et) {
aoqi@0	219	return typeStr.replaceAll("#ExtendedType", et==null? "":et.typeStr);
aoqi@0	220	}
aoqi@0	221	}
aoqi@0	222
aoqi@0	223	boolean checkTypeInference() {
aoqi@0	224	if (parameterType == TypeKind.VOID) {
aoqi@0	225	if (lambdaBodyType != LambdaBody.RETURN_VOID)
aoqi@0	226	return false;
aoqi@0	227	}
aoqi@0	228	else if (lambdaBodyType != LambdaBody.RETURN_ARG)
aoqi@0	229	return false;
aoqi@0	230
aoqi@0	231	return true;
aoqi@0	232	}
aoqi@0	233
aoqi@0	234	String templateStr = "#C\n" +
aoqi@0	235	"interface SAM2 {\n" +
aoqi@0	236	" SAM m();\n" +
aoqi@0	237	"}\n";
aoqi@0	238	SourceFile samSourceFile = new SourceFile("Sam.java", templateStr) {
aoqi@0	239	public String toString() {
aoqi@0	240	return template.replaceAll("#C",
aoqi@0	241	samKind.getSam(parameterType, returnType));
aoqi@0	242	}
aoqi@0	243	};
aoqi@0	244
aoqi@0	245	SourceFile clientSourceFile = new SourceFile("Client.java",
aoqi@0	246	"class Client { \n" +
aoqi@0	247	" #Context\n" +
aoqi@0	248	"}") {
aoqi@0	249	public String toString() {
aoqi@0	250	return template.replaceAll("#Context",
aoqi@0	251	context.getContext(samKind, samTargetType, keyword,
aoqi@0	252	parameterType, returnType, lambdaKind, parameterKind,
aoqi@0	253	genericDeclKind, lambdaBodyType));
aoqi@0	254	}
aoqi@0	255	};
aoqi@0	256
aoqi@0	257	public void run() {
aoqi@0	258	DiagnosticChecker dc = new DiagnosticChecker();
aoqi@0	259	JavacTask ct = (JavacTask)comp.getTask(null, fm.get(), dc,
aoqi@0	260	null, null, Arrays.asList(samSourceFile, clientSourceFile));
aoqi@0	261	try {
aoqi@0	262	ct.analyze();
aoqi@0	263	} catch (Throwable t) {
aoqi@0	264	processException(t);
aoqi@0	265	}
aoqi@0	266	if (dc.errorFound == checkTypeInference()) {
aoqi@0	267	throw new AssertionError(samSourceFile + "\n\n" +
aoqi@0	268	clientSourceFile + "\n" + parameterType + " " + returnType);
aoqi@0	269	}
aoqi@0	270	}
aoqi@0	271
aoqi@0	272	abstract class SourceFile extends SimpleJavaFileObject {
aoqi@0	273
aoqi@0	274	protected String template;
aoqi@0	275
aoqi@0	276	public SourceFile(String filename, String template) {
aoqi@0	277	super(URI.create("myfo:/" + filename), JavaFileObject.Kind.SOURCE);
aoqi@0	278	this.template = template;
aoqi@0	279	}
aoqi@0	280
aoqi@0	281	@Override
aoqi@0	282	public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0	283	return toString();
aoqi@0	284	}
aoqi@0	285
aoqi@0	286	public abstract String toString();
aoqi@0	287	}
aoqi@0	288
aoqi@0	289	static class DiagnosticChecker
aoqi@0	290	implements javax.tools.DiagnosticListener<JavaFileObject> {
aoqi@0	291
aoqi@0	292	boolean errorFound = false;
aoqi@0	293
aoqi@0	294	public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
aoqi@0	295	if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
aoqi@0	296	errorFound = true;
aoqi@0	297	}
aoqi@0	298	}
aoqi@0	299	}
aoqi@0	300
aoqi@0	301	SamKind samKind;
aoqi@0	302	TypeKind samTargetType;
aoqi@0	303	TypeKind parameterType;
aoqi@0	304	TypeKind returnType;
aoqi@0	305	Context context;
aoqi@0	306	LambdaBody lambdaBodyType;
aoqi@0	307	LambdaKind lambdaKind;
aoqi@0	308	ParameterKind parameterKind;
aoqi@0	309	Keyword keyword;
aoqi@0	310	GenericDeclKind genericDeclKind;
aoqi@0	311
aoqi@0	312	TypeInferenceComboTest(SamKind sk, TypeKind samTargetT, TypeKind parameterT,
aoqi@0	313	TypeKind returnT, LambdaBody lb, Context c, LambdaKind lk,
aoqi@0	314	ParameterKind pk, Keyword kw, GenericDeclKind gdk) {
aoqi@0	315	samKind = sk;
aoqi@0	316	samTargetType = samTargetT;
aoqi@0	317	parameterType = parameterT;
aoqi@0	318	returnType = returnT;
aoqi@0	319	context = c;
aoqi@0	320	lambdaKind = lk;
aoqi@0	321	parameterKind = pk;
aoqi@0	322	keyword = kw;
aoqi@0	323	lambdaBodyType = lb;
aoqi@0	324	genericDeclKind = gdk;
aoqi@0	325	}
aoqi@0	326
aoqi@0	327	public static void main(String[] args) throws Exception {
aoqi@0	328	for(Context ct : Context.values()) {
aoqi@0	329	for (TypeKind returnT : TypeKind.values()) {
aoqi@0	330	for (TypeKind parameterT : TypeKind.values()) {
aoqi@0	331	for(LambdaBody lb : LambdaBody.values()) {
aoqi@0	332	for (ParameterKind parameterK : ParameterKind.values()) {
aoqi@0	333	for(LambdaKind lambdaK : LambdaKind.values()) {
aoqi@0	334	for (SamKind sk : SamKind.values()) {
aoqi@0	335	if (sk == SamKind.NON_GENERIC) {
aoqi@0	336	generateNonGenericSAM(ct, returnT,
aoqi@0	337	parameterT, lb, parameterK,
aoqi@0	338	lambdaK, sk);
aoqi@0	339	}
aoqi@0	340	else if (sk == SamKind.GENERIC) {
aoqi@0	341	generateGenericSAM(ct, returnT,
aoqi@0	342	parameterT, lb, parameterK,
aoqi@0	343	lambdaK, sk);
aoqi@0	344	}
aoqi@0	345	}
aoqi@0	346	}
aoqi@0	347	}
aoqi@0	348	}
aoqi@0	349	}
aoqi@0	350	}
aoqi@0	351	}
aoqi@0	352
aoqi@0	353	checkAfterExec(false);
aoqi@0	354	}
aoqi@0	355
aoqi@0	356	static void generateNonGenericSAM(Context ct, TypeKind returnT,
aoqi@0	357	TypeKind parameterT, LambdaBody lb, ParameterKind parameterK,
aoqi@0	358	LambdaKind lambdaK, SamKind sk) {
aoqi@0	359	if(parameterT != TypeKind.GENERIC && returnT != TypeKind.GENERIC ) {
aoqi@0	360	pool.execute(new TypeInferenceComboTest(sk, null, parameterT,
aoqi@0	361	returnT, lb, ct, lambdaK, parameterK, null, null));
aoqi@0	362	}
aoqi@0	363	}
aoqi@0	364
aoqi@0	365	static void generateGenericSAM(Context ct, TypeKind returnT,
aoqi@0	366	TypeKind parameterT, LambdaBody lb, ParameterKind parameterK,
aoqi@0	367	LambdaKind lambdaK, SamKind sk) {
aoqi@0	368	for (Keyword kw : Keyword.values()) {
aoqi@0	369	for (TypeKind samTargetT : TypeKind.values()) {
aoqi@0	370	if(samTargetT != TypeKind.VOID &&
aoqi@0	371	samTargetT != TypeKind.INT &&
aoqi@0	372	samTargetT != TypeKind.GENERIC &&
aoqi@0	373	(parameterT == TypeKind.GENERIC ||
aoqi@0	374	returnT == TypeKind.GENERIC)) {
aoqi@0	375	if(ct != Context.METHOD_CALL) {
aoqi@0	376	pool.execute(
aoqi@0	377	new TypeInferenceComboTest(sk, samTargetT, parameterT,
aoqi@0	378	returnT, lb, ct, lambdaK, parameterK, kw, null));
aoqi@0	379	} else {//Context.METHOD_CALL
aoqi@0	380	for (GenericDeclKind gdk :
aoqi@0	381	GenericDeclKind.values())
aoqi@0	382	pool.execute(
aoqi@0	383	new TypeInferenceComboTest(sk, samTargetT,
aoqi@0	384	parameterT, returnT, lb, ct, lambdaK,
aoqi@0	385	parameterK, kw, gdk));
aoqi@0	386	}
aoqi@0	387	}
aoqi@0	388	}
aoqi@0	389	}
aoqi@0	390	}
aoqi@0	391
aoqi@0	392	}