com.sun.tools.javac.tree.TreeScanner Java Examples

The following examples show how to use com.sun.tools.javac.tree.TreeScanner. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: CompilerBasedTest.java    From Refaster with Apache License 2.0 6 votes vote down vote up 
protected void compile(TreeScanner scanner, JavaFileObject fileObject) {
  JavaCompiler compiler = JavacTool.create();
  DiagnosticCollector<JavaFileObject> diagnosticsCollector =
      new DiagnosticCollector<JavaFileObject>();
  StandardJavaFileManager fileManager = 
      compiler.getStandardFileManager(diagnosticsCollector, Locale.ENGLISH, UTF_8);
  JavacTaskImpl task = (JavacTaskImpl) compiler.getTask(CharStreams.nullWriter(), 
      fileManager,
      diagnosticsCollector,
      ImmutableList.<String>of(),
      null,
      ImmutableList.of(fileObject));
  try {
    this.sourceFile = SourceFile.create(fileObject);
    Iterable<? extends CompilationUnitTree> trees = task.parse();
    task.analyze();
    for (CompilationUnitTree tree : trees) {
      scanner.scan((JCCompilationUnit) tree);
    }
  } catch (IOException e) {
    throw new RuntimeException(e);
  }
  this.context = task.getContext();
}
Example #2
Source File: TwrAvoidNullCheck.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public List<JCTree> translateTopLevelClass(Env<AttrContext> env, JCTree cdef, TreeMaker make) {
    List<JCTree> result = super.translateTopLevelClass(env, cdef, make);

    new TreeScanner() {
        @Override
        public void visitBinary(JCBinary tree) {
            hasNullCheck |= tree.operator.getSimpleName().contentEquals("!=") &&
                            "resource".equals(String.valueOf(TreeInfo.name(tree.lhs))) &&
                            TreeInfo.isNull(tree.rhs);
            super.visitBinary(tree);
        }
    }.scan(result);

    return result;
}
Example #3
Source File: FieldOverloadKindNotAssignedTest.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
void run() throws Exception {
    Context context = new Context();
    JavacFileManager.preRegister(context);
    final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
    JavacTask ct = (JavacTask)tool.getTask(null, null, null, null, null, Arrays.asList(new JavaSource()));
    Iterable<? extends CompilationUnitTree> elements = ct.parse();
    ct.analyze();
    Assert.check(elements.iterator().hasNext());
    JCTree topLevel = (JCTree)elements.iterator().next();
    new TreeScanner() {
        @Override
        public void visitReference(JCMemberReference tree) {
            Assert.check(tree.getOverloadKind() != null);
        }
    }.scan(topLevel);
}
Example #4
Source File: BoxingAndSuper.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
@Override
public List<JCTree> translateTopLevelClass(Env<AttrContext> env, JCTree cdef, TreeMaker make) {
    List<JCTree> result = super.translateTopLevelClass(env, cdef, make);
    Map<Symbol, JCMethodDecl> declarations = new HashMap<>();
    Set<Symbol> toDump = new TreeSet<>(symbolComparator);

    new TreeScanner() {
        @Override
        public void visitMethodDef(JCMethodDecl tree) {
            if (tree.name.toString().startsWith("dump")) {
                toDump.add(tree.sym);
            }
            declarations.put(tree.sym, tree);
            super.visitMethodDef(tree);
        }
    }.scan(result);

    for (Symbol d : toDump) {
        dump(d, declarations, new HashSet<>());
    }

    return result;
}
Example #5
Source File: JavacTransitive.java    From bazel with Apache License 2.0 5 votes vote down vote up 
/**
 * Records the super type closure of all class declarations in the given compilation unit. Called
 * after attribute is complete for a compilation unit.
 */
public void postAttribute(Env<AttrContext> result) {
  result.toplevel.accept(
      new TreeScanner() {
        @Override
        public void visitClassDef(JCClassDecl tree) {
          recordSuperClosure(tree.sym);
          super.visitClassDef(tree);
        }
      });
}
Example #6
Source File: TestLog.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
static void test(boolean genEndPos) throws IOException {
    Context context = new Context();

    Options options = Options.instance(context);
    options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m");

    Log log = Log.instance(context);
    log.multipleErrors = true;

    JavacFileManager.preRegister(context);
    ParserFactory pfac = ParserFactory.instance(context);

    final String text =
          "public class Foo {\n"
        + "  public static void main(String[] args) {\n"
        + "    if (args.length == 0)\n"
        + "      System.out.println(\"no args\");\n"
        + "    else\n"
        + "      System.out.println(args.length + \" args\");\n"
        + "  }\n"
        + "}\n";
    JavaFileObject fo = new StringJavaFileObject("Foo", text);
    log.useSource(fo);

    CharSequence cs = fo.getCharContent(true);
    Parser parser = pfac.newParser(cs, false, genEndPos, false);
    JCTree.JCCompilationUnit tree = parser.parseCompilationUnit();
    log.setEndPosTable(fo, tree.endPositions);

    TreeScanner ts = new LogTester(log, tree.endPositions);
    ts.scan(tree);

    check(log.nerrors, 4, "errors");
    check(log.nwarnings, 4, "warnings");
}
Example #7
Source File: JavaInputAstVisitor.java    From google-java-format with Apache License 2.0 5 votes vote down vote up 
private boolean isStringConcat(ExpressionTree first) {
  final boolean[] stringLiteral = {true};
  final boolean[] formatString = {false};
  new TreeScanner() {
    @Override
    public void scan(JCTree tree) {
      if (tree == null) {
        return;
      }
      switch (tree.getKind()) {
        case STRING_LITERAL:
          break;
        case PLUS:
          super.scan(tree);
          break;
        default:
          stringLiteral[0] = false;
          break;
      }
      if (tree.getKind() == STRING_LITERAL) {
        Object value = ((LiteralTree) tree).getValue();
        if (value instanceof String && FORMAT_SPECIFIER.matcher(value.toString()).find()) {
          formatString[0] = true;
        }
      }
    }
  }.scan((JCTree) first);
  return stringLiteral[0] && formatString[0];
}
Example #8
Source File: TestLog.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
static void test(boolean genEndPos) throws IOException {
    Context context = new Context();

    Options options = Options.instance(context);
    options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m");

    Log log = Log.instance(context);
    log.multipleErrors = true;

    JavacFileManager.preRegister(context);
    ParserFactory pfac = ParserFactory.instance(context);

    final String text =
          "public class Foo {\n"
        + "  public static void main(String[] args) {\n"
        + "    if (args.length == 0)\n"
        + "      System.out.println(\"no args\");\n"
        + "    else\n"
        + "      System.out.println(args.length + \" args\");\n"
        + "  }\n"
        + "}\n";
    JavaFileObject fo = new StringJavaFileObject("Foo", text);
    log.useSource(fo);

    CharSequence cs = fo.getCharContent(true);
    Parser parser = pfac.newParser(cs, false, genEndPos, false);
    JCTree.JCCompilationUnit tree = parser.parseCompilationUnit();
    log.setEndPosTable(fo, tree.endPositions);

    TreeScanner ts = new LogTester(log, tree.endPositions);
    ts.scan(tree);

    check(log.nerrors, 4, "errors");
    check(log.nwarnings, 4, "warnings");
}
Example #9
Source File: TestLog.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
static void test(boolean genEndPos) throws IOException {
    Context context = new Context();

    Options options = Options.instance(context);
    options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m");

    Log log = Log.instance(context);
    log.multipleErrors = true;

    JavacFileManager.preRegister(context);
    ParserFactory pfac = ParserFactory.instance(context);

    final String text =
          "public class Foo {\n"
        + "  public static void main(String[] args) {\n"
        + "    if (args.length == 0)\n"
        + "      System.out.println(\"no args\");\n"
        + "    else\n"
        + "      System.out.println(args.length + \" args\");\n"
        + "  }\n"
        + "}\n";
    JavaFileObject fo = new StringJavaFileObject("Foo", text);
    log.useSource(fo);

    CharSequence cs = fo.getCharContent(true);
    Parser parser = pfac.newParser(cs, false, genEndPos, false);
    JCTree.JCCompilationUnit tree = parser.parseCompilationUnit();
    log.setEndPosTable(fo, tree.endPositions);

    TreeScanner ts = new LogTester(log, tree.endPositions);
    ts.scan(tree);

    check(log.nerrors, 4, "errors");
    check(log.nwarnings, 4, "warnings");
}
Example #10
Source File: TestLog.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
static void test(boolean genEndPos) throws IOException {
    Context context = new Context();

    Options options = Options.instance(context);
    options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m");

    Log log = Log.instance(context);
    log.multipleErrors = true;

    JavacFileManager.preRegister(context);
    ParserFactory pfac = ParserFactory.instance(context);

    final String text =
          "public class Foo {\n"
        + "  public static void main(String[] args) {\n"
        + "    if (args.length == 0)\n"
        + "      System.out.println(\"no args\");\n"
        + "    else\n"
        + "      System.out.println(args.length + \" args\");\n"
        + "  }\n"
        + "}\n";
    JavaFileObject fo = new StringJavaFileObject("Foo", text);
    log.useSource(fo);

    CharSequence cs = fo.getCharContent(true);
    Parser parser = pfac.newParser(cs, false, genEndPos, false);
    JCTree.JCCompilationUnit tree = parser.parseCompilationUnit();
    log.setEndPosTable(fo, tree.endPositions);

    TreeScanner ts = new LogTester(log, tree.endPositions);
    ts.scan(tree);

    check(log.nerrors, 4, "errors");
    check(log.nwarnings, 4, "warnings");
}
Example #11
Source File: JavaInputAstVisitor.java    From javaide with GNU General Public License v3.0 5 votes vote down vote up 
private boolean isStringConcat(ExpressionTree first) {
    final boolean[] stringLiteral = {true};
    final boolean[] formatString = {false};
    new TreeScanner() {
        @Override
        public void scan(JCTree tree) {
            if (tree == null) {
                return;
            }
            switch (tree.getKind()) {
                case STRING_LITERAL:
                    break;
                case PLUS:
                    super.scan(tree);
                    break;
                default:
                    stringLiteral[0] = false;
                    break;
            }
            if (tree.getKind() == STRING_LITERAL) {
                Object value = ((LiteralTree) tree).getValue();
                if (value instanceof String && FORMAT_SPECIFIER.matcher(value.toString()).find()) {
                    formatString[0] = true;
                }
            }
        }
    }.scan((JCTree) first);
    return stringLiteral[0] && formatString[0];
}
Example #12
Source File: TestLog.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
static void test(boolean genEndPos) throws IOException {
    Context context = new Context();

    Options options = Options.instance(context);
    options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m");

    Log log = Log.instance(context);
    log.multipleErrors = true;

    JavacFileManager.preRegister(context);
    ParserFactory pfac = ParserFactory.instance(context);

    final String text =
          "public class Foo {\n"
        + "  public static void main(String[] args) {\n"
        + "    if (args.length == 0)\n"
        + "      System.out.println(\"no args\");\n"
        + "    else\n"
        + "      System.out.println(args.length + \" args\");\n"
        + "  }\n"
        + "}\n";
    JavaFileObject fo = new StringJavaFileObject("Foo", text);
    log.useSource(fo);

    CharSequence cs = fo.getCharContent(true);
    Parser parser = pfac.newParser(cs, false, genEndPos, false);
    JCTree.JCCompilationUnit tree = parser.parseCompilationUnit();
    log.setEndPosTable(fo, tree.endPositions);

    TreeScanner ts = new LogTester(log, tree.endPositions);
    ts.scan(tree);

    check(log.nerrors, 4, "errors");
    check(log.nwarnings, 4, "warnings");
}
Example #13
Source File: TestLog.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
static void test(boolean genEndPos) throws IOException {
    Context context = new Context();

    Options options = Options.instance(context);
    options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m");

    Log log = Log.instance(context);
    log.multipleErrors = true;

    JavacFileManager.preRegister(context);
    ParserFactory pfac = ParserFactory.instance(context);

    final String text =
          "public class Foo {\n"
        + "  public static void main(String[] args) {\n"
        + "    if (args.length == 0)\n"
        + "      System.out.println(\"no args\");\n"
        + "    else\n"
        + "      System.out.println(args.length + \" args\");\n"
        + "  }\n"
        + "}\n";
    JavaFileObject fo = new StringJavaFileObject("Foo", text);
    log.useSource(fo);

    CharSequence cs = fo.getCharContent(true);
    Parser parser = pfac.newParser(cs, false, genEndPos, false);
    JCTree.JCCompilationUnit tree = parser.parseCompilationUnit();
    log.setEndPosTable(fo, tree.endPositions);

    TreeScanner ts = new LogTester(log, tree.endPositions);
    ts.scan(tree);

    check(log.nerrors, 4, "errors");
    check(log.nwarnings, 4, "warnings");
}
Example #14
Source File: JavaInputAstVisitor.java    From java-n-IDE-for-Android with Apache License 2.0 5 votes vote down vote up 
private boolean isStringConcat(ExpressionTree first) {
    final boolean[] stringLiteral = {true};
    final boolean[] formatString = {false};
    new TreeScanner() {
        @Override
        public void scan(JCTree tree) {
            if (tree == null) {
                return;
            }
            switch (tree.getKind()) {
                case STRING_LITERAL:
                    break;
                case PLUS:
                    super.scan(tree);
                    break;
                default:
                    stringLiteral[0] = false;
                    break;
            }
            if (tree.getKind() == STRING_LITERAL) {
                Object value = ((LiteralTree) tree).getValue();
                if (value instanceof String && FORMAT_SPECIFIER.matcher(value.toString()).find()) {
                    formatString[0] = true;
                }
            }
        }
    }.scan((JCTree) first);
    return stringLiteral[0] && formatString[0];
}
Example #15
Source File: TestLog.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
static void test(boolean genEndPos) throws IOException {
    Context context = new Context();

    Options options = Options.instance(context);
    options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m");

    Log log = Log.instance(context);
    log.multipleErrors = true;

    JavacFileManager.preRegister(context);
    ParserFactory pfac = ParserFactory.instance(context);

    final String text =
          "public class Foo {\n"
        + "  public static void main(String[] args) {\n"
        + "    if (args.length == 0)\n"
        + "      System.out.println(\"no args\");\n"
        + "    else\n"
        + "      System.out.println(args.length + \" args\");\n"
        + "  }\n"
        + "}\n";
    JavaFileObject fo = new StringJavaFileObject("Foo", text);
    log.useSource(fo);

    CharSequence cs = fo.getCharContent(true);
    Parser parser = pfac.newParser(cs, false, genEndPos, false);
    JCTree.JCCompilationUnit tree = parser.parseCompilationUnit();
    log.setEndPosTable(fo, tree.endPositions);

    TreeScanner ts = new LogTester(log, tree.endPositions);
    ts.scan(tree);

    check(log.nerrors, 4, "errors");
    check(log.nwarnings, 4, "warnings");
}
Example #16
Source File: TestLog.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up 
static void test(boolean genEndPos) throws Exception {
    Context context = new Context();

    Options options = Options.instance(context);
    options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m");

    Log log = Log.instance(context);
    Factory diagnosticFactory = JCDiagnostic.Factory.instance(context);
    Field defaultErrorFlagsField =
            JCDiagnostic.Factory.class.getDeclaredField("defaultErrorFlags");

    defaultErrorFlagsField.setAccessible(true);

    Set<DiagnosticFlag> defaultErrorFlags =
            (Set<DiagnosticFlag>) defaultErrorFlagsField.get(diagnosticFactory);

    defaultErrorFlags.add(DiagnosticFlag.MULTIPLE);

    JavacFileManager.preRegister(context);
    ParserFactory pfac = ParserFactory.instance(context);

    final String text =
          "public class Foo {\n"
        + "  public static void main(String[] args) {\n"
        + "    if (args.length == 0)\n"
        + "      System.out.println(\"no args\");\n"
        + "    else\n"
        + "      System.out.println(args.length + \" args\");\n"
        + "  }\n"
        + "}\n";
    JavaFileObject fo = new StringJavaFileObject("Foo", text);
    log.useSource(fo);

    CharSequence cs = fo.getCharContent(true);
    Parser parser = pfac.newParser(cs, false, genEndPos, false);
    JCTree.JCCompilationUnit tree = parser.parseCompilationUnit();
    log.setEndPosTable(fo, tree.endPositions);

    TreeScanner ts = new LogTester(log, tree.endPositions);
    ts.scan(tree);

    check(log.nerrors, 4, "errors");
    check(log.nwarnings, 4, "warnings");
}
Example #17
Source File: CompilerBasedTest.java    From Refaster with Apache License 2.0 4 votes vote down vote up 
protected void compile(TreeScanner scanner, String... lines) {
  compile(scanner, JavaFileObjects.forSourceLines("CompilerBasedTestInput", lines));
}