Wed, 26 Jan 2011 13:45:25 -0800
7013272: Automatically generate info about how compiler resource keys are used
Reviewed-by: mcimadamore
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2011, 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 6993305 |
aoqi@0 | 27 | * @summary starting position of a method without modifiers and with type parameters is incorrect |
aoqi@0 | 28 | */ |
aoqi@0 | 29 | |
aoqi@0 | 30 | import java.io.File; |
aoqi@0 | 31 | import javax.tools.JavaFileObject; |
aoqi@0 | 32 | import javax.tools.StandardJavaFileManager; |
aoqi@0 | 33 | |
aoqi@0 | 34 | import com.sun.source.tree.CompilationUnitTree; |
aoqi@0 | 35 | import com.sun.source.tree.MethodTree; |
aoqi@0 | 36 | import com.sun.source.util.JavacTask; |
aoqi@0 | 37 | import com.sun.source.util.SourcePositions; |
aoqi@0 | 38 | import com.sun.source.util.TreeScanner; |
aoqi@0 | 39 | import com.sun.source.util.Trees; |
aoqi@0 | 40 | import com.sun.tools.javac.api.JavacTool; |
aoqi@0 | 41 | import java.io.IOException; |
aoqi@0 | 42 | |
aoqi@0 | 43 | /* |
aoqi@0 | 44 | * Test verifies the starting position of all methods by computing the start position |
aoqi@0 | 45 | * of each method as the first non-white character on the first line containing |
aoqi@0 | 46 | * (" " + methodName + "("), and then comparing this value against the reported |
aoqi@0 | 47 | * value in the SourcePositions table. |
aoqi@0 | 48 | */ |
aoqi@0 | 49 | public class T6993305 { |
aoqi@0 | 50 | <T> void test1(T t) { } // this is the primary case to be tested |
aoqi@0 | 51 | public <T> void test2(T t) { } |
aoqi@0 | 52 | @Deprecated <T> void test3(T t) { } |
aoqi@0 | 53 | |
aoqi@0 | 54 | public static void main(String... args) throws Exception { |
aoqi@0 | 55 | new T6993305().run(); |
aoqi@0 | 56 | } |
aoqi@0 | 57 | |
aoqi@0 | 58 | void run() throws Exception { |
aoqi@0 | 59 | File testSrc = new File(System.getProperty("test.src")); |
aoqi@0 | 60 | |
aoqi@0 | 61 | JavacTool tool = JavacTool.create(); |
aoqi@0 | 62 | StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null); |
aoqi@0 | 63 | |
aoqi@0 | 64 | File f = new File(testSrc, T6993305.class.getSimpleName() + ".java"); |
aoqi@0 | 65 | Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjects(f); |
aoqi@0 | 66 | JavacTask task = tool.getTask(null, fm, null, null, null, fos); |
aoqi@0 | 67 | Iterable<? extends CompilationUnitTree> cus = task.parse(); |
aoqi@0 | 68 | |
aoqi@0 | 69 | TestScanner s = new TestScanner(); |
aoqi@0 | 70 | s.scan(cus, task); |
aoqi@0 | 71 | |
aoqi@0 | 72 | if (errors > 0) |
aoqi@0 | 73 | throw new Exception(errors + " errors occurred"); |
aoqi@0 | 74 | } |
aoqi@0 | 75 | |
aoqi@0 | 76 | void error(String msg) { |
aoqi@0 | 77 | System.err.println("Error: " + msg); |
aoqi@0 | 78 | errors++; |
aoqi@0 | 79 | } |
aoqi@0 | 80 | |
aoqi@0 | 81 | int errors; |
aoqi@0 | 82 | |
aoqi@0 | 83 | class TestScanner extends TreeScanner<Void, JavacTask> { |
aoqi@0 | 84 | CompilationUnitTree cu; |
aoqi@0 | 85 | SourcePositions sourcePositions; |
aoqi@0 | 86 | String source; |
aoqi@0 | 87 | |
aoqi@0 | 88 | void show(String label, int pos) { |
aoqi@0 | 89 | System.err.println(label + ": " + |
aoqi@0 | 90 | source.substring(pos, Math.min(source.length(), pos + 10))); |
aoqi@0 | 91 | } |
aoqi@0 | 92 | |
aoqi@0 | 93 | @Override public Void visitCompilationUnit(CompilationUnitTree tree, JavacTask task) { |
aoqi@0 | 94 | cu = tree; |
aoqi@0 | 95 | Trees trees = Trees.instance(task); |
aoqi@0 | 96 | sourcePositions = trees.getSourcePositions(); |
aoqi@0 | 97 | try { |
aoqi@0 | 98 | source = String.valueOf(tree.getSourceFile().getCharContent(true)); |
aoqi@0 | 99 | } catch (IOException e) { |
aoqi@0 | 100 | throw new Error(e); |
aoqi@0 | 101 | } |
aoqi@0 | 102 | return super.visitCompilationUnit(tree, task); |
aoqi@0 | 103 | } |
aoqi@0 | 104 | |
aoqi@0 | 105 | // this is the core of the test |
aoqi@0 | 106 | @Override public Void visitMethod(MethodTree tree, JavacTask task) { |
aoqi@0 | 107 | String name = String.valueOf(tree.getName()); |
aoqi@0 | 108 | int pos = source.indexOf(" " + name + "("); |
aoqi@0 | 109 | while (source.charAt(pos - 1) != '\n') pos--; |
aoqi@0 | 110 | while (source.charAt(pos) == ' ') pos++; |
aoqi@0 | 111 | int expectedStart = pos; |
aoqi@0 | 112 | int reportedStart = (int) sourcePositions.getStartPosition(cu, tree); |
aoqi@0 | 113 | System.err.println("Method " + name |
aoqi@0 | 114 | + " expectedStart:" + expectedStart |
aoqi@0 | 115 | + " reportedStart:" + reportedStart); |
aoqi@0 | 116 | if (expectedStart != reportedStart) { |
aoqi@0 | 117 | error("Unexpected value for " + name); |
aoqi@0 | 118 | show("expected", expectedStart); |
aoqi@0 | 119 | show("reported", reportedStart); |
aoqi@0 | 120 | } |
aoqi@0 | 121 | return super.visitMethod(tree, task); |
aoqi@0 | 122 | } |
aoqi@0 | 123 | } |
aoqi@0 | 124 | } |