1 /* 2 * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 4813736 8013256 27 * @summary Additional functionality test of task and JSR 269 28 * @author Peter von der Ah\u00e9 29 * @library ./lib 30 * @modules jdk.compiler/com.sun.tools.javac.api 31 * jdk.compiler/com.sun.tools.javac.code 32 * jdk.compiler/com.sun.tools.javac.parser 33 * jdk.compiler/com.sun.tools.javac.util 34 * @build ToolTester 35 * @run main TestJavacTaskScanner TestJavacTaskScanner.java 36 */ 37 38 import com.sun.tools.javac.api.JavacTaskImpl; 39 import com.sun.tools.javac.parser.*; 40 import com.sun.tools.javac.parser.Tokens.Token; 41 import com.sun.tools.javac.util.*; 42 43 import java.io.*; 44 import java.net.*; 45 import java.nio.*; 46 import java.nio.charset.Charset; 47 import java.util.Arrays; 48 49 import javax.lang.model.element.Element; 50 import javax.lang.model.element.TypeElement; 51 import javax.lang.model.type.DeclaredType; 52 import javax.lang.model.type.TypeMirror; 53 import javax.lang.model.util.ElementFilter; 54 import javax.lang.model.util.Elements; 55 import javax.lang.model.util.Types; 56 import javax.tools.*; 57 58 import static javax.tools.StandardLocation.CLASS_PATH; 59 import static javax.tools.StandardLocation.SOURCE_PATH; 60 import static javax.tools.StandardLocation.CLASS_OUTPUT; 61 62 public class TestJavacTaskScanner extends ToolTester { 63 64 final JavacTaskImpl task; 65 final Elements elements; 66 final Types types; 67 68 int numTokens; 69 int numParseTypeElements; 70 int numAllMembers; 71 72 TestJavacTaskScanner(File file) { 73 final Iterable<? extends JavaFileObject> compilationUnits = 74 fm.getJavaFileObjects(new File[] {file}); 75 StandardJavaFileManager fm = getLocalFileManager(tool, null, null); 76 java.util.List<String> options = Arrays.asList( 77 "-XaddExports:jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED", 78 "-XaddExports:jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED", 79 "-XaddExports:jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED", 80 "-XaddExports:jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED"); 81 task = (JavacTaskImpl)tool.getTask(null, fm, null, options, null, compilationUnits); 82 task.getContext().put(ScannerFactory.scannerFactoryKey, 83 new MyScanner.Factory(task.getContext(), this)); 84 elements = task.getElements(); 85 types = task.getTypes(); 86 } 87 88 public void run() { 89 Iterable<? extends TypeElement> toplevels; 90 toplevels = ElementFilter.typesIn(task.enter(task.parse())); 91 for (TypeElement clazz : toplevels) { 92 System.out.format("Testing %s:%n%n", clazz.getSimpleName()); 93 testParseType(clazz); 94 testGetAllMembers(clazz); 95 System.out.println(); 96 System.out.println(); 97 System.out.println(); 98 } 99 100 System.out.println("#tokens: " + numTokens); 101 System.out.println("#parseTypeElements: " + numParseTypeElements); 102 System.out.println("#allMembers: " + numAllMembers); 103 104 check(numTokens, "#Tokens", 1054); 105 check(numParseTypeElements, "#parseTypeElements", 158); 106 check(numAllMembers, "#allMembers", 52); 107 } 108 109 void check(int value, String name, int expected) { 110 // allow some slop in the comparison to allow for minor edits in the 111 // test and in the platform 112 if (value < expected * 9 / 10) 113 throw new Error(name + " lower than expected; expected " + expected + "; found: " + value); 114 if (value > expected * 11 / 10) 115 throw new Error(name + " higher than expected; expected " + expected + "; found: " + value); 116 } 117 118 void testParseType(TypeElement clazz) { 119 DeclaredType type = (DeclaredType)task.parseType("List<String>", clazz); 120 for (Element member : elements.getAllMembers((TypeElement)type.asElement())) { 121 TypeMirror mt = types.asMemberOf(type, member); 122 System.out.format("type#%d: %s : %s -> %s%n", 123 numParseTypeElements, member.getSimpleName(), member.asType(), mt); 124 numParseTypeElements++; 125 } 126 } 127 128 public static void main(String... args) throws IOException { 129 String srcdir = System.getProperty("test.src"); 130 try (TestJavacTaskScanner t = new TestJavacTaskScanner(new File(srcdir, args[0]))) { 131 t.run(); 132 } 133 } 134 135 private void testGetAllMembers(TypeElement clazz) { 136 for (Element member : elements.getAllMembers(clazz)) { 137 System.out.format("elem#%d: %s : %s%n", 138 numAllMembers, member.getSimpleName(), member.asType()); 139 numAllMembers++; 140 } 141 } 142 143 /* Similar to ToolTester.getFileManager, except that this version also ensures 144 * javac classes will be available on the classpath. The javac classes are assumed 145 * to be on the classpath used to run this test (this is true when using jtreg). 146 * The classes are found by obtaining the URL for a sample javac class, using 147 * getClassLoader().getResource(), and then deconstructing the URL to find the 148 * underlying directory or jar file to place on the classpath. 149 */ 150 public StandardJavaFileManager getLocalFileManager(JavaCompiler tool, 151 DiagnosticListener<JavaFileObject> dl, 152 Charset encoding) { 153 StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, encoding); 154 try { 155 fm.setLocation(SOURCE_PATH, Arrays.asList(test_src)); 156 fm.setLocation(CLASS_PATH, test_class_path); 157 fm.setLocation(CLASS_OUTPUT, Arrays.asList(test_classes)); 158 } catch (IOException e) { 159 throw new AssertionError(e); 160 } 161 return fm; 162 } 163 } 164 165 class MyScanner extends Scanner { 166 167 public static class Factory extends ScannerFactory { 168 public Factory(Context context, TestJavacTaskScanner test) { 169 super(context); 170 this.test = test; 171 } 172 173 @Override 174 public Scanner newScanner(CharSequence input, boolean keepDocComments) { 175 if (input instanceof CharBuffer) { 176 return new MyScanner(this, (CharBuffer)input, test); 177 } else { 178 char[] array = input.toString().toCharArray(); 179 return newScanner(array, array.length, keepDocComments); 180 } 181 } 182 183 @Override 184 public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) { 185 return new MyScanner(this, input, inputLength, test); 186 } 187 188 private TestJavacTaskScanner test; 189 } 190 protected MyScanner(ScannerFactory fac, CharBuffer buffer, TestJavacTaskScanner test) { 191 super(fac, buffer); 192 this.test = test; 193 } 194 protected MyScanner(ScannerFactory fac, char[] input, int inputLength, TestJavacTaskScanner test) { 195 super(fac, input, inputLength); 196 this.test = test; 197 } 198 199 public void nextToken() { 200 super.nextToken(); 201 Token tk = token(); 202 System.err.format("Saw token %s %n", tk.kind); 203 test.numTokens++; 204 } 205 206 private TestJavacTaskScanner test; 207 208 }