Examples with BallerinaLexer org.wso2.ballerinalang.compiler.parser.antlr4.BallerinaLexer used on opensource projects

Example 1 with BallerinaLexer

use of org.wso2.ballerinalang.compiler.parser.antlr4.BallerinaLexer in project ballerina by ballerina-lang.

the class Parser method generateCompilationUnit.

private CompilationUnitNode generateCompilationUnit(PackageSourceEntry sourceEntry) {
    try {
        int prevErrCount = dlog.errorCount;
        BDiagnosticSource diagnosticSrc = getDiagnosticSource(sourceEntry);
        String entryName = sourceEntry.getEntryName();
        BLangCompilationUnit compUnit = (BLangCompilationUnit) TreeBuilder.createCompilationUnit();
        compUnit.setName(sourceEntry.getEntryName());
        compUnit.pos = new DiagnosticPos(diagnosticSrc, 1, 1, 1, 1);
        ANTLRInputStream ais = new ANTLRInputStream(new ByteArrayInputStream(sourceEntry.getCode()));
        ais.name = entryName;
        BallerinaLexer lexer = new BallerinaLexer(ais);
        lexer.removeErrorListeners();
        lexer.addErrorListener(new BallerinaParserErrorListener(context, diagnosticSrc));
        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
        BallerinaParser parser = new BallerinaParser(tokenStream);
        parser.setErrorHandler(getErrorStrategy(diagnosticSrc));
        parser.addParseListener(newListener(tokenStream, compUnit, diagnosticSrc));
        parser.compilationUnit();
        return compUnit;
    } catch (IOException e) {
        throw new RuntimeException("Error in populating package model: " + e.getMessage(), e);
    }
}