Examples of com.sun.tools.javac.parser.ParserFactory

com.sun.tools.javac.parser.ParserFactory
A factory for creating parsers.
This is NOT part of any supported API. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are subject to change or deletion without notice.

    public Type parseType(String expr, TypeElement scope) {
        if (expr == null || expr.equals(""))
            throw new IllegalArgumentException();
        compiler = JavaCompiler.instance(context);
        JavaFileObject prev = compiler.log.useSource(null);
        ParserFactory parserFactory = ParserFactory.instance(context);
        Attr attr = Attr.instance(context);
        try {
            CharBuffer buf = CharBuffer.wrap((expr+"\u0000").toCharArray(), 0, expr.length());
            Parser parser = parserFactory.newParser(buf, false, false, false);
            JCTree tree = parser.parseType();
            return attr.attribType(tree, (Symbol.TypeSymbol)scope);
        } finally {
            compiler.log.useSource(prev);
        }

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    public Type parseType(String expr, TypeElement scope) {
        if (expr == null || expr.equals(""))
            throw new IllegalArgumentException();
        compiler = JavaCompiler.instance(context);
        JavaFileObject prev = compiler.log.useSource(null);
        ParserFactory parserFactory = ParserFactory.instance(context);
        Attr attr = Attr.instance(context);
        try {
            CharBuffer buf = CharBuffer.wrap((expr+"\u0000").toCharArray(), 0, expr.length());
            Parser parser = parserFactory.newParser(buf, false, false, false);
            JCTree tree = parser.parseType();
            return attr.attribType(tree, (Symbol.TypeSymbol)scope);
        } finally {
            compiler.log.useSource(prev);
        }

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    public Type parseType(String expr, TypeElement scope) {
        if (expr == null || expr.equals(""))
            throw new IllegalArgumentException();
        compiler = JavaCompiler.instance(context);
        JavaFileObject prev = compiler.log.useSource(null);
        ParserFactory parserFactory = ParserFactory.instance(context);
        Attr attr = Attr.instance(context);
        try {
            CharBuffer buf = CharBuffer.wrap((expr+"\u0000").toCharArray(), 0, expr.length());
            Parser parser = parserFactory.newParser(buf, false, false, false);
            JCTree tree = parser.parseType();
            return attr.attribType(tree, (Symbol.TypeSymbol)scope);
        } finally {
            compiler.log.useSource(prev);
        }

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        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);

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com.sun.tools.javac.api.JavacTaskImpl

TestLog

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