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test/tools/javac/annotations/typeAnnotations/api/ArrayCreationTree.java@959103a6100f (annotated)

test/tools/javac/annotations/typeAnnotations/api/ArrayCreationTree.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) 2010, 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	* @summary Checks that the interaction between annotated and unannotated
aoqi@0	27	* array levels in array creation trees
aoqi@0	28	*/
aoqi@0	29
aoqi@0	30	import com.sun.tools.javac.api.JavacTool;
aoqi@0	31	import com.sun.tools.javac.tree.JCTree.JCNewArray;
aoqi@0	32	import java.lang.annotation.*;
aoqi@0	33	import java.io.File;
aoqi@0	34	import java.io.PrintWriter;
aoqi@0	35	import java.util.Arrays;
aoqi@0	36	import java.util.List;
aoqi@0	37	import java.util.Map;
aoqi@0	38	import java.util.HashMap;
aoqi@0	39	import javax.tools.JavaFileManager;
aoqi@0	40	import javax.tools.JavaFileObject;
aoqi@0	41	import com.sun.source.tree.*;
aoqi@0	42	import com.sun.source.util.JavacTask;
aoqi@0	43	import com.sun.source.util.TreeScanner;
aoqi@0	44	import javax.tools.StandardJavaFileManager;
aoqi@0	45
aoqi@0	46
aoqi@0	47	public class ArrayCreationTree {
aoqi@0	48	public static void main(String[] args) throws Exception {
aoqi@0	49	PrintWriter out = new PrintWriter(System.out, true);
aoqi@0	50	JavacTool tool = JavacTool.create();
aoqi@0	51	StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
aoqi@0	52	File testSrc = new File(System.getProperty("test.src"));
aoqi@0	53	Iterable<? extends JavaFileObject> f =
aoqi@0	54	fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, "ArrayCreationTree.java")));
aoqi@0	55	JavacTask task = tool.getTask(out, fm, null, null, null, f);
aoqi@0	56	Iterable<? extends CompilationUnitTree> trees = task.parse();
aoqi@0	57	out.flush();
aoqi@0	58
aoqi@0	59	Scanner s = new Scanner();
aoqi@0	60	for (CompilationUnitTree t: trees)
aoqi@0	61	s.scan(t, null);
aoqi@0	62
aoqi@0	63	}
aoqi@0	64
aoqi@0	65	private static class Scanner extends TreeScanner<Void,Void> {
aoqi@0	66	int foundAnnotations = 0;
aoqi@0	67	public Void visitCompilationUnit(CompilationUnitTree node, Void ignore) {
aoqi@0	68	super.visitCompilationUnit(node, ignore);
aoqi@0	69	if (foundAnnotations != expectedAnnotations) {
aoqi@0	70	throw new AssertionError("Expected " + expectedAnnotations +
aoqi@0	71	" annotations but found: " + foundAnnotations);
aoqi@0	72	}
aoqi@0	73	return null;
aoqi@0	74	}
aoqi@0	75
aoqi@0	76	private void testAnnotations(List<? extends AnnotationTree> annos, int found) {
aoqi@0	77	if (annos.isEmpty()) return;
aoqi@0	78
aoqi@0	79	String annotation = annos.get(0).toString();
aoqi@0	80	foundAnnotations++;
aoqi@0	81
aoqi@0	82	int expected = -1;
aoqi@0	83	if (annotation.equals("@A()"))
aoqi@0	84	expected = 0;
aoqi@0	85	else if (annotation.equals("@B()"))
aoqi@0	86	expected = 1;
aoqi@0	87	else if (annotation.equals("@C()"))
aoqi@0	88	expected = 2;
aoqi@0	89	else
aoqi@0	90	throw new AssertionError("found an unexpected annotation: " + annotation);
aoqi@0	91	if (found != expected) {
aoqi@0	92	throw new AssertionError("Unexpected found length" +
aoqi@0	93	", found " + found + " but expected " + expected);
aoqi@0	94	}
aoqi@0	95	}
aoqi@0	96
aoqi@0	97	public Void visitAnnotatedType(AnnotatedTypeTree node, Void ignore) {
aoqi@0	98	testAnnotations(node.getAnnotations(), arrayLength(node));
aoqi@0	99	return super.visitAnnotatedType(node, ignore);
aoqi@0	100	}
aoqi@0	101
aoqi@0	102	public Void visitNewArray(NewArrayTree node, Void ignore) {
aoqi@0	103	// the Tree API hasn't been updated to expose annotations yet
aoqi@0	104	JCNewArray newArray = (JCNewArray)node;
aoqi@0	105	int totalLength = node.getDimensions().size()
aoqi@0	106	+ arrayLength(node.getType())
aoqi@0	107	+ ((newArray.getInitializers() != null) ? 1 : 0);
aoqi@0	108	testAnnotations(newArray.annotations, totalLength);
aoqi@0	109	int count = 0;
aoqi@0	110	for (List<? extends AnnotationTree> annos : newArray.dimAnnotations) {
aoqi@0	111	testAnnotations(annos, totalLength - count);
aoqi@0	112	count++;
aoqi@0	113	}
aoqi@0	114	return super.visitNewArray(node, ignore);
aoqi@0	115	}
aoqi@0	116
aoqi@0	117	private int arrayLength(Tree tree) {
aoqi@0	118	// TODO: the tree is null when called with node.getType(). Why?
aoqi@0	119	if (tree==null) return -1;
aoqi@0	120	switch (tree.getKind()) {
aoqi@0	121	case ARRAY_TYPE:
aoqi@0	122	return 1 + arrayLength(((ArrayTypeTree)tree).getType());
aoqi@0	123	case ANNOTATED_TYPE:
aoqi@0	124	return arrayLength(((AnnotatedTypeTree)tree).getUnderlyingType());
aoqi@0	125	default:
aoqi@0	126	return 0;
aoqi@0	127	}
aoqi@0	128	}
aoqi@0	129	}
aoqi@0	130
aoqi@0	131	static int expectedAnnotations = 21;
aoqi@0	132
aoqi@0	133	Object a1 = new @A Object @C [2] @B [1];
aoqi@0	134	Object b1 = new @A Object @C [2] @B [ ];
aoqi@0	135	Object c1 = new @A Object @C [ ] @B [ ] { };
aoqi@0	136
aoqi@0	137	Object a2 = new @A Object @C [2] [1];
aoqi@0	138	Object b2 = new @A Object @C [2] [ ];
aoqi@0	139	Object c2 = new @A Object @C [ ] [ ] { };
aoqi@0	140
aoqi@0	141	Object a3 = new @A Object [2] @B [1];
aoqi@0	142	Object b3 = new @A Object [2] @B [ ];
aoqi@0	143	Object c3 = new @A Object [ ] @B [ ] { };
aoqi@0	144
aoqi@0	145	@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
aoqi@0	146	@interface A {}
aoqi@0	147	@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
aoqi@0	148	@interface B {}
aoqi@0	149	@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
aoqi@0	150	@interface C {}
aoqi@0	151
aoqi@0	152	}