Examples with CompilationException org.snt.inmemantlr.exceptions.CompilationException used on opensource projects

Example 31 with CompilationException

use of org.snt.inmemantlr.exceptions.CompilationException in project inmemantlr by julianthome.

the class TestSimple method testInterpreter.

@Test
public void testInterpreter() throws IOException {
    try (InputStream sgrammar = getClass().getClassLoader().getResourceAsStream("inmemantlr/Simple.g4")) {
        sgrammarcontent = FileUtils.getStringFromStream(sgrammar);
    }
    GenericParser gp = new GenericParser(sgrammarcontent);
    DefaultTreeListener t = new DefaultTreeListener();
    gp.setListener(t);
    boolean compile;
    try {
        gp.compile();
        compile = true;
    } catch (CompilationException e) {
        compile = false;
    }
    Assertions.assertTrue(compile);
    // this example shows you how one could use inmemantlr for incremental parsing
    try {
        ParseTree parseTree;
        gp.parse("PRINT a+b");
        parseTree = t.getParseTree();
        LOGGER.debug(parseTree.toDot());
        Assertions.assertEquals(parseTree.getNodes().size(), 6);
        gp.parse("PRINT \"test\"");
        parseTree = t.getParseTree();
        LOGGER.debug(parseTree.toDot());
        Assertions.assertEquals(parseTree.getNodes().size(), 4);
    } catch (IllegalWorkflowException | ParsingException e) {
        LOGGER.error(e.getMessage(), e);
    }
}