Examples with MvelParser org.drools.mvel.parser.MvelParser used on opensource projects

Example 1 with MvelParser

use of org.drools.mvel.parser.MvelParser in project drools by kiegroup.

the class DrlxCompilerTest method testWhitespace.

@Test
public void testWhitespace() {
    ParseStart<Expression> context = ParseStart.EXPRESSION;
    MvelParser mvelParser = new MvelParser(new ParserConfiguration(), false);
    ParseResult<Expression> result = mvelParser.parse(context, provider("1\n+1"));
    assertEquals("1 + 1", result.getResult().get().toString());
}

Example 2 with MvelParser

use of org.drools.mvel.parser.MvelParser in project drools by kiegroup.

the class DrlxCompiler method toPackageDescr.

public PackageDescr toPackageDescr(Resource resource) throws IOException {
    ParseStart<CompilationUnit> context = ParseStart.DRLX_COMPILATION_UNIT;
    MvelParser mvelParser = new MvelParser(new ParserConfiguration(), false);
    ParseResult<CompilationUnit> result = mvelParser.parse(context, provider(resource.getReader()));
    if (result.isSuccessful()) {
        DrlxVisitor drlxCompiler = new DrlxVisitor();
        drlxCompiler.visit(result.getResult().get(), null);
        PackageDescr pkg = drlxCompiler.getPackageDescr();
        if (pkg == null) {
            this.results.add(new ParserError(resource, "Parser returned a null Package", 0, 0));
            return null;
        } else {
            pkg.setResource(resource);
            return pkg;
        }
    } else {
        for (Problem problem : result.getProblems()) {
            TokenRange tokenRange = problem.getLocation().get();
            Range range = tokenRange.getBegin().getRange().get();
            int lineCount = range.getLineCount();
            this.results.add(new ParserError(problem.getMessage(), lineCount, -1));
        }
        return null;
    }
}