use of org.codehaus.groovy.antlr.parser.GroovyLexer 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;
}
use of org.codehaus.groovy.antlr.parser.GroovyLexer in project groovy by apache.
the class Main method parseFile.
// Here's where we do the real work...
public static void parseFile(String f, GroovyLexer l, SourceBuffer sourceBuffer) throws Exception {
try {
// Create a parser that reads from the scanner
GroovyRecognizer parser = GroovyRecognizer.make(l);
parser.setSourceBuffer(sourceBuffer);
parser.setFilename(f);
if (whitespaceIncluded) {
GroovyLexer lexer = parser.getLexer();
lexer.setWhitespaceIncluded(true);
while (true) {
Token t = lexer.nextToken();
System.out.println(t);
if (t == null || t.getType() == Token.EOF_TYPE)
break;
}
return;
}
// start parsing at the compilationUnit rule
parser.compilationUnit();
System.out.println("parseFile " + f + " => " + parser.getAST());
// do something with the tree
doTreeAction(f, parser.getAST(), parser.getTokenNames());
} catch (Exception e) {
System.err.println("parser exception: " + e);
// so we can get stack trace
e.printStackTrace();
}
}
use of org.codehaus.groovy.antlr.parser.GroovyLexer in project groovy by apache.
the class SourceParserTest method parse.
protected void parse(String name, Reader reader) {
SourceBuffer sourceBuffer = new SourceBuffer();
UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(reader, sourceBuffer);
GroovyLexer lexer = new GroovyLexer(unicodeReader);
unicodeReader.setLexer(lexer);
GroovyRecognizer parser = GroovyRecognizer.make(lexer);
parser.setSourceBuffer(sourceBuffer);
parser.setFilename(name);
// start parsing at the compilationUnit rule
try {
parser.compilationUnit();
} catch (Exception ex) {
StringWriter out = new StringWriter();
out.write(ex.getMessage());
out.write("\n");
ex.printStackTrace(new PrintWriter(out));
fail(out.toString());
}
}
use of org.codehaus.groovy.antlr.parser.GroovyLexer in project groovy by apache.
the class LineColumnTest method doStuff.
public void doStuff(String input) throws Exception {
GroovyRecognizer parser;
SourceBuffer sourceBuffer = new SourceBuffer();
UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(new StringReader(input), sourceBuffer);
GroovyLexer lexer = new GroovyLexer(unicodeReader);
unicodeReader.setLexer(lexer);
parser = GroovyRecognizer.make(lexer);
parser.setSourceBuffer(sourceBuffer);
String[] tokenNames = parser.getTokenNames();
parser.compilationUnit();
AST ast = parser.getAST();
AntlrASTProcessor snippets = new AntlrASTProcessSnippets();
ast = snippets.process(ast);
Visitor visitor = new LineColumnChecker(sourceBuffer, tokenNames);
AntlrASTProcessor traverser = new SourceCodeTraversal(visitor);
traverser.process(ast);
}
use of org.codehaus.groovy.antlr.parser.GroovyLexer in project groovy by apache.
the class AntlrParserPlugin method transformCSTIntoAST.
protected void transformCSTIntoAST(SourceUnit sourceUnit, Reader reader, SourceBuffer sourceBuffer) throws CompilationFailedException {
ast = null;
setController(sourceUnit);
// TODO find a way to inject any GroovyLexer/GroovyRecognizer
UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(reader, sourceBuffer);
UnicodeLexerSharedInputState inputState = new UnicodeLexerSharedInputState(unicodeReader);
GroovyLexer lexer = new GroovyLexer(inputState);
unicodeReader.setLexer(lexer);
GroovyRecognizer parser = GroovyRecognizer.make(lexer);
parser.setSourceBuffer(sourceBuffer);
tokenNames = parser.getTokenNames();
parser.setFilename(sourceUnit.getName());
// start parsing at the compilationUnit rule
try {
parser.compilationUnit();
} catch (TokenStreamRecognitionException tsre) {
RecognitionException e = tsre.recog;
SyntaxException se = new SyntaxException(e.getMessage(), e, e.getLine(), e.getColumn());
se.setFatal(true);
sourceUnit.addError(se);
} catch (RecognitionException e) {
SyntaxException se = new SyntaxException(e.getMessage(), e, e.getLine(), e.getColumn());
se.setFatal(true);
sourceUnit.addError(se);
} catch (TokenStreamException e) {
sourceUnit.addException(e);
}
ast = parser.getAST();
}
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