Examples with CeylonLexer org.eclipse.ceylon.compiler.typechecker.parser.CeylonLexer used on opensource projects

Example 6 with CeylonLexer

use of org.eclipse.ceylon.compiler.typechecker.parser.CeylonLexer in project ceylon by eclipse.

the class LanguageCompiler method ceylonParse.

private JCCompilationUnit ceylonParse(JavaFileObject filename, CharSequence readSource) {
    if (ceylonEnter.hasRun())
        throw new RunTwiceException("Trying to load new source file after CeylonEnter has been called: " + filename);
    try {
        ModuleManager moduleManager = phasedUnits.getModuleManager();
        ModuleSourceMapper moduleSourceMapper = phasedUnits.getModuleSourceMapper();
        File sourceFile = new File(filename.getName());
        // FIXME: temporary solution
        VirtualFile file = vfs.getFromFile(sourceFile);
        VirtualFile srcDir = vfs.getFromFile(getSrcDir(sourceFile));
        String source = readSource.toString();
        char[] chars = source.toCharArray();
        LineMap map = Position.makeLineMap(chars, chars.length, false);
        PhasedUnit phasedUnit = null;
        PhasedUnit externalPhasedUnit = compilerDelegate.getExternalSourcePhasedUnit(srcDir, file);
        String suppressWarnings = options.get(Option.CEYLONSUPPRESSWARNINGS);
        final EnumSet<Warning> suppressedWarnings;
        if (suppressWarnings != null) {
            if (suppressWarnings.trim().isEmpty()) {
                suppressedWarnings = EnumSet.allOf(Warning.class);
            } else {
                suppressedWarnings = EnumSet.noneOf(Warning.class);
                for (String name : suppressWarnings.trim().split(" *, *")) {
                    suppressedWarnings.add(Warning.valueOf(name));
                }
            }
        } else {
            suppressedWarnings = EnumSet.noneOf(Warning.class);
        }
        if (externalPhasedUnit != null) {
            phasedUnit = new CeylonPhasedUnit(externalPhasedUnit, filename, map);
            phasedUnit.setSuppressedWarnings(suppressedWarnings);
            phasedUnits.addPhasedUnit(externalPhasedUnit.getUnitFile(), phasedUnit);
            gen.setMap(map);
            String pkgName = phasedUnit.getPackage().getQualifiedNameString();
            if ("".equals(pkgName)) {
                pkgName = null;
            }
            return gen.makeJCCompilationUnitPlaceholder(phasedUnit.getCompilationUnit(), filename, pkgName, phasedUnit);
        }
        if (phasedUnit == null) {
            ANTLRStringStream input = new NewlineFixingStringStream(source);
            CeylonLexer lexer = new CeylonLexer(input);
            CommonTokenStream tokens = new CommonTokenStream(new CeylonInterpolatingLexer(lexer));
            CeylonParser parser = new CeylonParser(tokens);
            CompilationUnit cu = parser.compilationUnit();
            java.util.List<LexError> lexerErrors = lexer.getErrors();
            for (LexError le : lexerErrors) {
                printError(le, le.getMessage(), "ceylon.lexer", map);
            }
            java.util.List<ParseError> parserErrors = parser.getErrors();
            for (ParseError pe : parserErrors) {
                printError(pe, pe.getMessage(), "ceylon.parser", map);
            }
            // if we continue and it's not a descriptor, we don't care about errors
            if ((options.get(Option.CEYLONCONTINUE) != null && !ModuleManager.MODULE_FILE.equals(sourceFile.getName()) && !ModuleManager.PACKAGE_FILE.equals(sourceFile.getName())) || // otherwise we care about errors
            (lexerErrors.size() == 0 && parserErrors.size() == 0)) {
                // FIXME: this is bad in many ways
                String pkgName = getPackage(filename);
                // make a Package with no module yet, we will resolve them later
                /*
                     * Stef: see javadoc for findOrCreateModulelessPackage() for why this is here.
                     */
                Package p = modelLoader.findOrCreateModulelessPackage(pkgName == null ? "" : pkgName);
                phasedUnit = new CeylonPhasedUnit(file, srcDir, cu, p, moduleManager, moduleSourceMapper, ceylonContext, filename, map);
                phasedUnit.setSuppressedWarnings(suppressedWarnings);
                phasedUnits.addPhasedUnit(file, phasedUnit);
                gen.setMap(map);
                return gen.makeJCCompilationUnitPlaceholder(cu, filename, pkgName, phasedUnit);
            }
        }
    } catch (RuntimeException e) {
        throw e;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    JCCompilationUnit result = make.TopLevel(List.<JCAnnotation>nil(), null, List.<JCTree>of(make.Erroneous()));
    result.sourcefile = filename;
    return result;
}