Examples with StringReader java.io.StringReader used on opensource projects

Example 26 with StringReader

use of java.io.StringReader in project groovy by apache.

the class GenericsUtils method parseClassNodesFromString.

public static ClassNode[] parseClassNodesFromString(final String option, final SourceUnit sourceUnit, final CompilationUnit compilationUnit, final MethodNode mn, final ASTNode usage) {
    GroovyLexer lexer = new GroovyLexer(new StringReader("DummyNode<" + option + ">"));
    final GroovyRecognizer rn = GroovyRecognizer.make(lexer);
    try {
        rn.classOrInterfaceType(true);
        final AtomicReference<ClassNode> ref = new AtomicReference<ClassNode>();
        AntlrParserPlugin plugin = new AntlrParserPlugin() {

            @Override
            public ModuleNode buildAST(final SourceUnit sourceUnit, final ClassLoader classLoader, final Reduction cst) throws ParserException {
                ref.set(makeTypeWithArguments(rn.getAST()));
                return null;
            }
        };
        plugin.buildAST(null, null, null);
        ClassNode parsedNode = ref.get();
        // the returned node is DummyNode<Param1, Param2, Param3, ...)
        GenericsType[] parsedNodeGenericsTypes = parsedNode.getGenericsTypes();
        if (parsedNodeGenericsTypes == null) {
            return null;
        }
        ClassNode[] signature = new ClassNode[parsedNodeGenericsTypes.length];
        for (int i = 0; i < parsedNodeGenericsTypes.length; i++) {
            final GenericsType genericsType = parsedNodeGenericsTypes[i];
            signature[i] = resolveClassNode(sourceUnit, compilationUnit, mn, usage, genericsType.getType());
        }
        return signature;
    } catch (RecognitionException e) {
        sourceUnit.addError(new IncorrectTypeHintException(mn, e, usage.getLineNumber(), usage.getColumnNumber()));
    } catch (TokenStreamException e) {
        sourceUnit.addError(new IncorrectTypeHintException(mn, e, usage.getLineNumber(), usage.getColumnNumber()));
    } catch (ParserException e) {
        sourceUnit.addError(new IncorrectTypeHintException(mn, e, usage.getLineNumber(), usage.getColumnNumber()));
    }
    return null;
}

Example 27 with StringReader

use of java.io.StringReader in project groovy by apache.

the class Java2GroovyProcessor method getJavaParser.

private static JavaRecognizer getJavaParser(String input) {
    JavaRecognizer parser = null;
    SourceBuffer sourceBuffer = new SourceBuffer();
    UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(new StringReader(input), sourceBuffer);
    JavaLexer lexer = new JavaLexer(unicodeReader);
    unicodeReader.setLexer(lexer);
    parser = JavaRecognizer.make(lexer);
    parser.setSourceBuffer(sourceBuffer);
    return parser;
}

Example 28 with StringReader

use of java.io.StringReader in project groovy by apache.

the class GroovyRootDocBuilder method getJavaParser.

private static JavaRecognizer getJavaParser(String input, SourceBuffer sourceBuffer) {
    UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(new StringReader(input), sourceBuffer);
    JavaLexer lexer = new JavaLexer(unicodeReader);
    unicodeReader.setLexer(lexer);
    JavaRecognizer parser = JavaRecognizer.make(lexer);
    parser.setSourceBuffer(sourceBuffer);
    return parser;
}

Example 29 with StringReader

use of java.io.StringReader in project groovy by apache.

the class EnumSourceParsingTest method testParseEnumConstants.

public void testParseEnumConstants() {
    StringReader reader = new StringReader("enum One {\n" + "  ONE, TWO, THREE\n" + "}");
    parse("testParseEnumConstants", reader);
}

Example 30 with StringReader

use of java.io.StringReader in project groovy by apache.

the class EnumSourceParsingTest method testParseEnumConstantsOneLiner.

public void testParseEnumConstantsOneLiner() {
    StringReader reader = new StringReader("enum One { ONE, TWO, THREE }");
    parse("testParseEnumConstantsOneLiner", reader);
}