Examples with DefaultTreeListener org.snt.inmemantlr.listener.DefaultTreeListener used on opensource projects

Example 6 with DefaultTreeListener

use of org.snt.inmemantlr.listener.DefaultTreeListener in project inmemantlr by julianthome.

the class TestTreeGeneration method testGeneration.

@Test
public void testGeneration() {
    assertNotNull(grammar);
    GenericParser gp = assertDoesNotThrow(() -> new GenericParser(grammar));
    assertNotNull(gp);
    boolean compile;
    try {
        gp.compile();
        compile = true;
    } catch (CompilationException e) {
        compile = false;
    }
    assertTrue(compile);
    String s = FileUtils.loadFileContent(sfile.getAbsolutePath());
    assertTrue(s != null && !s.isEmpty());
    DefaultTreeListener dlist = new DefaultTreeListener();
    gp.setListener(dlist);
    assertDoesNotThrow(() -> {
        gp.parse(s);
    });
    ParseTree parseTree = dlist.getParseTree();
    LOGGER.debug(parseTree.toDot());
    // create copy
    ParseTree cast = new ParseTree(parseTree);
    assertNotNull(parseTree);
    assertEquals(parseTree.getNodes().size(), cast.getNodes().size());
    Set<ParseTree> parseTrees = parseTree.getSubtrees(n -> "expression".equals(n.getRule()));
    assertEquals(5, parseTrees.size());
    for (ParseTree a : parseTrees) {
        assertTrue(parseTree.hasSubtree(a));
        assertNotNull(parseTree.getSubtree(a));
    }
    int sizeBefore = parseTree.getNodes().size();
    ParseTree first = parseTrees.iterator().next();
    parseTree.removeSubtree(first);
    assertEquals(parseTree.getNodes().size() + first.getNodes().size(), sizeBefore);
    ParseTree repl = new ParseTree("replacement", "replacement");
    cast.replaceSubtree(first, repl);
    assertEquals(cast.getNodes().size(), parseTree.getNodes().size() + 1);
    assertEquals(1, cast.getDominatingSubtrees(n -> "classBody".equals(n.getRule())).size());
    assertTrue(cast.toDot() != null && !cast.toDot().isEmpty());
    ParseTreeNode root = cast.getRoot();
    assertTrue(root.hasChildren());
    assertFalse(root.hasParent());
    for (ParseTreeNode n : cast.getNodes()) {
        assertNotNull(n.getLabel());
        assertNotNull(n.getRule());
        for (int i = 0; i < n.getChildren().size(); i++) {
            if (i == 0)
                assertEquals(n.getChild(i), n.getFirstChild());
            if (i == n.getChildren().size() - 1)
                assertEquals(n.getChild(i), n.getLastChild());
        }
    }
    for (ParseTreeNode c : cast.getLeafs()) {
        assertTrue(c.hasParent());
        assertFalse(c.hasChildren());
        assertTrue(c.isLeaf());
        assertNull(c.getLastChild());
        assertNull(c.getFirstChild());
    }
    ParseTreeNode croot = cast.getRoot();
    croot.setParent(parseTree.getRoot());
    assertEquals(croot.getParent(), parseTree.getRoot());
}

Example 7 with DefaultTreeListener

use of org.snt.inmemantlr.listener.DefaultTreeListener in project inmemantlr by julianthome.

the class TestBroken method testBroken.

@Test
public void testBroken() throws IOException {
    try (InputStream sgrammar = getClass().getClassLoader().getResourceAsStream("inmemantlr/Broken.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.assertFalse(compile);
}

Example 8 with DefaultTreeListener

use of org.snt.inmemantlr.listener.DefaultTreeListener in project inmemantlr by julianthome.

the class TestExternalGrammars method testCSharp.

@Test
public void testCSharp() {
    // being -- csharp grammar is runtime dependent
    if (System.getProperty("os.name").toLowerCase().startsWith("win"))
        return;
    if (!toCheck("csharp"))
        return;
    Subject s = subjects.get("csharp");
    Set<File> mfiles = s.g4.stream().filter(v -> v.getName().matches("CSharp" + "(Lexer|PreprocessorParser|Parser).g4")).collect(Collectors.toSet());
    assertFalse(mfiles.isEmpty());
    GenericParser mparser = null;
    try {
        mparser = new GenericParser(mfiles.toArray(new File[0]));
    } catch (FileNotFoundException e) {
        fail();
    }
    assertNotNull(mparser);
    DefaultTreeListener mdt = new DefaultTreeListener();
    assertDoesNotThrow(mparser::compile);
    mparser.setListener(mdt);
    mparser.setParserName("CSharpParser");
    verify(mparser, s.examples, s.nexamples, s.entrypoint);
}

Example 9 with DefaultTreeListener

use of org.snt.inmemantlr.listener.DefaultTreeListener in project inmemantlr by julianthome.

the class TestExternalGrammars method testMySQL.

@Test
public void testMySQL() {
    if (!toCheck("mysql"))
        return;
    Subject s = subjects.get("mysql");
    Set<File> mfiles = s.g4.stream().filter(v -> v.getName().matches("MySql" + "(Lexer|Parser).g4")).collect(Collectors.toSet());
    assertFalse(mfiles.isEmpty());
    GenericParser mparser = null;
    try {
        mparser = new GenericParser(mfiles.toArray(new File[0]));
    } catch (FileNotFoundException e) {
        fail();
    }
    assertNotNull(mparser);
    DefaultTreeListener mdt = new DefaultTreeListener();
    assertDoesNotThrow(mparser::compile);
    mparser.setStreamProvider(new CasedStreamProvider(CaseSensitiveType.UPPER));
    mparser.setListener(mdt);
    verify(mparser, s.examples, s.nexamples, s.entrypoint);
}

Example 10 with DefaultTreeListener

use of org.snt.inmemantlr.listener.DefaultTreeListener in project inmemantlr by julianthome.

the class TestExternalGrammars method testTSql.

@Test
public void testTSql() {
    if (!toCheck("tsql"))
        return;
    Subject s = subjects.get("tsql");
    Set<File> mfiles = s.g4.stream().filter(v -> v.getName().matches("TSql(Lexer|Parser).g4")).collect(Collectors.toSet());
    assertFalse(mfiles.isEmpty());
    GenericParser mparser = null;
    try {
        mparser = new GenericParser(mfiles.toArray(new File[0]));
    } catch (FileNotFoundException e) {
        fail();
    }
    assertNotNull(mparser);
    DefaultTreeListener mdt = new DefaultTreeListener();
    assertDoesNotThrow(mparser::compile);
    mparser.setStreamProvider(new CasedStreamProvider(CaseSensitiveType.UPPER));
    mparser.setListener(mdt);
    // seems to cause issues when running on windows
    s.examples.removeIf(f -> f.getName().equals("full_width_chars.sql"));
    verify(mparser, s.examples, s.nexamples, s.entrypoint);
}