Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 import java.net.URI;

 import java.net.URISyntaxException;

 import java.util.Arrays;

 import javax.tools.DiagnosticCollector;

 import javax.tools.JavaCompiler;

 import javax.tools.JavaFileObject;

 import javax.tools.SimpleJavaFileObject;

 import javax.tools.ToolProvider;

 import javax.tools.JavaCompiler.CompilationTask;

 public class Helper {

     enum ContentVars {

         IMPORTCONTAINERSTMTS("\nimport java.lang.annotation.Repeatable;\n"),

         IMPORTDEPRECATED("import java.lang.Deprecated;\n"),

         IMPORTDOCUMENTED("import java.lang.annotation.Documented;\n"),

         IMPORTINHERITED("import java.lang.annotation.Inherited;\n"),

         IMPORTRETENTION("import java.lang.annotation.Retention;\n" +

                         "\nimport java.lang.annotation.RetentionPolicy;\n"),

         IMPORTSTMTS("import java.lang.annotation.*;\n"),

         REPEATABLE("\n@Repeatable(FooContainer.class)\n"),

         CONTAINER("@interface FooContainer {\n" +"  Foo[] value();\n}\n"),

         BASE("@interface Foo {}\n"),

         BASEANNO("@Foo"),

         REPEATABLEANNO("\n@Foo() @Foo()"),

         DEPRECATED("\n@Deprecated"),

         DOCUMENTED("\n@Documented"),

         INHERITED("\n@Inherited"),

         RETENTION("@Retention(RetentionPolicy.#VAL)\n"),

         TARGET("\n@Target(#VAL)\n");

         private String val;

         private ContentVars(String val) {

             this.val = val;

         }

         public String getVal() {

             return val;

         }

     }

     /* String template where /*<TYPE>*/ /*gets replaced by repeating anno

      * Used to generate test src for combo tests

      *   - BasicSyntaxCombo.java

      *   - TargetAnnoCombo.java

      */

     public static final String template =

             "/*PACKAGE*/\n" +

             "//pkg test;\n\n" +

             "/*ANNODATA*/\n" + // import statements, declaration of Foo/FooContainer

             "/*TYPE*/ //class\n" +

             "class #ClassName {\n" +

             "  /*FIELD*/ //instance var\n" +

             "  public int x = 0;\n\n" +

             "  /*FIELD*/ //Enum constants\n" +

             "  TestEnum testEnum;\n\n" +

             "  /*FIELD*/ // Static field\n" +

             "  public static int num;\n\n" +

             "  /*STATIC_INI*/\n" +

             "  static { \n" + "num = 10; \n  }\n\n" +

             "  /*CONSTRUCTOR*/\n" +

             "  #ClassName() {}\n\n" +

             "  /*INSTANCE_INI*/\n" +

             "  { \n x = 10; \n }" +

             "  /*INNER_CLASS*/\n" +

             "  class innerClass {}\n" +

             "  /*METHOD*/\n" +

             "  void bar(/*PARAMETER*/ int baz) {\n" +

             "    /*LOCAL_VARIABLE*/\n" +

             "    int y = 0;\n" +

             "  }\n" +

             "}\n\n" +

             "/*TYPE*/ //Enum\n" +

             "enum TestEnum {}\n\n" +

             "/*TYPE*/ //Interface\n" +

             "interface TestInterface {}\n\n" +

             "/*TYPE*/\n" +

             "/*ANNOTATION_TYPE*/\n" +

             "@interface TestAnnotationType{}\n" +

             "class TestPkg {}\n" +

             "class TestTypeAnno </*TYPE_PARAMETER*/ T extends Object> {\n" +

             "  String /*TYPE_USE*/[] arr;\n" +

             "}";

     // Create and compile FileObject using values for className and contents

     public static boolean compileCode(String className, String contents,

             DiagnosticCollector<JavaFileObject> diagnostics) {

         boolean ok = false;

         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

         if (compiler == null) {

             throw new RuntimeException("can't get javax.tools.JavaCompiler!");

         }

         JavaFileObject file = getFile(className, contents);

         Iterable<? extends JavaFileObject> compilationUnit = Arrays.asList(file);

         CompilationTask task = compiler.getTask(null, null, diagnostics, null, null, compilationUnit);

         ok = task.call();

         return ok;

     }

     // Compile a list of FileObjects

     public static boolean compileCode(DiagnosticCollector<JavaFileObject> diagnostics, Iterable<? extends JavaFileObject> files) {

         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

         if (compiler == null) {

             throw new RuntimeException("can't get javax.tools.JavaCompiler!");

         }

         CompilationTask task = compiler.getTask(null, null, diagnostics, null, null, files);

         boolean ok = task.call();

         return ok;

     }

     static JavaFileObject getFile(String name, String code) {

         JavaFileObject o = null;

         try {

             o = new JavaStringFileObject(name, code);

         } catch (URISyntaxException e) {

             throw new RuntimeException(e);

         }

         return o;

     }

     static class JavaStringFileObject extends SimpleJavaFileObject {

         final String theCode;

         public JavaStringFileObject(String fileName, String theCode) throws URISyntaxException {

             super(new URI("string:///" + fileName.replace('.','/') + ".java"), Kind.SOURCE);

             this.theCode = theCode;

         }

         @Override

         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

             return theCode;

         }

     }

 }