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test/tools/javac/cast/intersection/IntersectionTypeParserTest.java@93012e2a5d1d (annotated)

test/tools/javac/cast/intersection/IntersectionTypeParserTest.java

Sat, 07 Nov 2020 10:30:02 +0800

author

aoqi

date

Sat, 07 Nov 2020 10:30:02 +0800

changeset 3938

93012e2a5d1d

parent 2525

2eb010b6cb22

permissions

-rw-r--r--

Added tag mips-jdk8u275-b01 for changeset eb6ee6a5f2fe

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2012, 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 8002099
aoqi@0	27	* @summary Add support for intersection types in cast expression
aoqi@0	28	*/
aoqi@0	29
aoqi@0	30	import com.sun.source.util.JavacTask;
aoqi@0	31	import java.net.URI;
aoqi@0	32	import java.util.Arrays;
aoqi@0	33	import javax.tools.Diagnostic;
aoqi@0	34	import javax.tools.JavaCompiler;
aoqi@0	35	import javax.tools.JavaFileObject;
aoqi@0	36	import javax.tools.SimpleJavaFileObject;
aoqi@0	37	import javax.tools.StandardJavaFileManager;
aoqi@0	38	import javax.tools.ToolProvider;
aoqi@0	39
aoqi@0	40	public class IntersectionTypeParserTest {
aoqi@0	41
aoqi@0	42	static int checkCount = 0;
aoqi@0	43
aoqi@0	44	enum TypeKind {
aoqi@0	45	SIMPLE("A"),
aoqi@0	46	GENERIC("A<X>"),
aoqi@0	47	WILDCARD("A<? super X, ? extends Y>");
aoqi@0	48
aoqi@0	49	String typeStr;
aoqi@0	50
aoqi@0	51	TypeKind(String typeStr) {
aoqi@0	52	this.typeStr = typeStr;
aoqi@0	53	}
aoqi@0	54	}
aoqi@0	55
aoqi@0	56	enum ArrayKind {
aoqi@0	57	NONE(""),
aoqi@0	58	SINGLE("[]"),
aoqi@0	59	DOUBLE("[][]");
aoqi@0	60
aoqi@0	61	String arrStr;
aoqi@0	62
aoqi@0	63	ArrayKind(String arrStr) {
aoqi@0	64	this.arrStr = arrStr;
aoqi@0	65	}
aoqi@0	66	}
aoqi@0	67
aoqi@0	68	static class Type {
aoqi@0	69	TypeKind tk;
aoqi@0	70	ArrayKind ak;
aoqi@0	71
aoqi@0	72	Type(TypeKind tk, ArrayKind ak) {
aoqi@0	73	this.tk = tk;
aoqi@0	74	this.ak = ak;
aoqi@0	75	}
aoqi@0	76
aoqi@0	77	String asString() {
aoqi@0	78	return tk.typeStr + ak.arrStr;
aoqi@0	79	}
aoqi@0	80	}
aoqi@0	81
aoqi@0	82	enum CastKind {
aoqi@0	83	ONE("(#T0)", 1),
aoqi@0	84	TWO("(#T0 & T1)", 2),
aoqi@0	85	THREE("(#T0 & #T1 & #T2)", 3);
aoqi@0	86
aoqi@0	87	String castTemplate;
aoqi@0	88	int nBounds;
aoqi@0	89
aoqi@0	90	CastKind(String castTemplate, int nBounds) {
aoqi@0	91	this.castTemplate = castTemplate;
aoqi@0	92	this.nBounds = nBounds;
aoqi@0	93	}
aoqi@0	94
aoqi@0	95	String asString(Type... types) {
aoqi@0	96	String res = castTemplate;
aoqi@0	97	for (int i = 0; i < nBounds ; i++) {
aoqi@0	98	res = res.replaceAll(String.format("#T%d", i), types[i].asString());
aoqi@0	99	}
aoqi@0	100	return res;
aoqi@0	101	}
aoqi@0	102	}
aoqi@0	103
aoqi@0	104	public static void main(String... args) throws Exception {
aoqi@0	105	//create default shared JavaCompiler - reused across multiple compilations
aoqi@0	106	JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
aoqi@0	107	StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
aoqi@0	108
aoqi@0	109	for (CastKind ck : CastKind.values()) {
aoqi@0	110	for (TypeKind t1 : TypeKind.values()) {
aoqi@0	111	for (ArrayKind ak1 : ArrayKind.values()) {
aoqi@0	112	Type typ1 = new Type(t1, ak1);
aoqi@0	113	if (ck.nBounds == 1) {
aoqi@0	114	new IntersectionTypeParserTest(ck, typ1).run(comp, fm);
aoqi@0	115	continue;
aoqi@0	116	}
aoqi@0	117	for (TypeKind t2 : TypeKind.values()) {
aoqi@0	118	for (ArrayKind ak2 : ArrayKind.values()) {
aoqi@0	119	Type typ2 = new Type(t2, ak2);
aoqi@0	120	if (ck.nBounds == 2) {
aoqi@0	121	new IntersectionTypeParserTest(ck, typ1, typ2).run(comp, fm);
aoqi@0	122	continue;
aoqi@0	123	}
aoqi@0	124	for (TypeKind t3 : TypeKind.values()) {
aoqi@0	125	for (ArrayKind ak3 : ArrayKind.values()) {
aoqi@0	126	Type typ3 = new Type(t3, ak3);
aoqi@0	127	new IntersectionTypeParserTest(ck, typ1, typ2, typ3).run(comp, fm);
aoqi@0	128	}
aoqi@0	129	}
aoqi@0	130	}
aoqi@0	131	}
aoqi@0	132	}
aoqi@0	133	}
aoqi@0	134	}
aoqi@0	135	System.out.println("Total check executed: " + checkCount);
aoqi@0	136	}
aoqi@0	137
aoqi@0	138	CastKind ck;
aoqi@0	139	Type[] types;
aoqi@0	140	JavaSource source;
aoqi@0	141	DiagnosticChecker diagChecker;
aoqi@0	142
aoqi@0	143	IntersectionTypeParserTest(CastKind ck, Type... types) {
aoqi@0	144	this.ck = ck;
aoqi@0	145	this.types = types;
aoqi@0	146	this.source = new JavaSource();
aoqi@0	147	this.diagChecker = new DiagnosticChecker();
aoqi@0	148	}
aoqi@0	149
aoqi@0	150	class JavaSource extends SimpleJavaFileObject {
aoqi@0	151
aoqi@0	152	String bodyTemplate = "class Test {\n" +
aoqi@0	153	" void test() {\n" +
aoqi@0	154	" Object o = #Cnull;\n" +
aoqi@0	155	" } }";
aoqi@0	156
aoqi@0	157	String source = "";
aoqi@0	158
aoqi@0	159	public JavaSource() {
aoqi@0	160	super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0	161	source += bodyTemplate.replaceAll("#C", ck.asString(types));
aoqi@0	162	}
aoqi@0	163
aoqi@0	164	@Override
aoqi@0	165	public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0	166	return source;
aoqi@0	167	}
aoqi@0	168	}
aoqi@0	169
aoqi@0	170	void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
aoqi@0	171	checkCount++;
aoqi@0	172	JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
aoqi@0	173	null, null, Arrays.asList(source));
aoqi@0	174	ct.parse();
aoqi@0	175	if (diagChecker.errorFound) {
aoqi@0	176	throw new Error("Unexpected parser error for source:\n" +
aoqi@0	177	source.getCharContent(true));
aoqi@0	178	}
aoqi@0	179	}
aoqi@0	180
aoqi@0	181	static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
aoqi@0	182
aoqi@0	183	boolean errorFound;
aoqi@0	184
aoqi@0	185	public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
aoqi@0	186	if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
aoqi@0	187	errorFound = true;
aoqi@0	188	}
aoqi@0	189	}
aoqi@0	190	}
aoqi@0	191	}