Examples with ErrorQueue org.antlr.v4.test.runtime.ErrorQueue used on opensource projects

Example 6 with ErrorQueue

use of org.antlr.v4.test.runtime.ErrorQueue in project antlr4 by antlr.

the class BaseJavaTest method checkGrammarSemanticsError.

protected void checkGrammarSemanticsError(ErrorQueue equeue, GrammarSemanticsMessage expectedMessage) throws Exception {
    ANTLRMessage foundMsg = null;
    for (int i = 0; i < equeue.errors.size(); i++) {
        ANTLRMessage m = equeue.errors.get(i);
        if (m.getErrorType() == expectedMessage.getErrorType()) {
            foundMsg = m;
        }
    }
    assertNotNull("no error; " + expectedMessage.getErrorType() + " expected", foundMsg);
    assertTrue("error is not a GrammarSemanticsMessage", foundMsg instanceof GrammarSemanticsMessage);
    assertEquals(Arrays.toString(expectedMessage.getArgs()), Arrays.toString(foundMsg.getArgs()));
    if (equeue.size() != 1) {
        System.err.println(equeue);
    }
}

Example 7 with ErrorQueue

use of org.antlr.v4.test.runtime.ErrorQueue in project antlr4 by antlr.

the class BaseJavaTest method checkLexerDFA.

List<ANTLRMessage> checkLexerDFA(String gtext, String modeName, String expecting) throws Exception {
    ErrorQueue equeue = new ErrorQueue();
    LexerGrammar g = new LexerGrammar(gtext, equeue);
    g.atn = createATN(g, false);
    //		return equeue.all;
    return null;
}

Example 8 with ErrorQueue

use of org.antlr.v4.test.runtime.ErrorQueue in project antlr4 by antlr.

the class BaseCppTest method checkRuleDFA.

List<ANTLRMessage> checkRuleDFA(String gtext, String ruleName, String expecting) throws Exception {
    ErrorQueue equeue = new ErrorQueue();
    Grammar g = new Grammar(gtext, equeue);
    ATN atn = createATN(g, false);
    ATNState s = atn.ruleToStartState[g.getRule(ruleName).index];
    if (s == null) {
        System.err.println("no such rule: " + ruleName);
        return null;
    }
    ATNState t = s.transition(0).target;
    if (!(t instanceof DecisionState)) {
        System.out.println(ruleName + " has no decision");
        return null;
    }
    DecisionState blk = (DecisionState) t;
    checkRuleDFA(g, blk, expecting);
    return equeue.all;
}

Example 9 with ErrorQueue

use of org.antlr.v4.test.runtime.ErrorQueue in project antlr4 by antlr.

the class BaseCppTest method checkError.

protected void checkError(ErrorQueue equeue, ANTLRMessage expectedMessage) throws Exception {
    //System.out.println("errors="+equeue);
    ANTLRMessage foundMsg = null;
    for (int i = 0; i < equeue.errors.size(); i++) {
        ANTLRMessage m = equeue.errors.get(i);
        if (m.getErrorType() == expectedMessage.getErrorType()) {
            foundMsg = m;
        }
    }
    assertTrue("no error; " + expectedMessage.getErrorType() + " expected", !equeue.errors.isEmpty());
    assertTrue("too many errors; " + equeue.errors, equeue.errors.size() <= 1);
    assertNotNull("couldn't find expected error: " + expectedMessage.getErrorType(), foundMsg);
    /*
		assertTrue("error is not a GrammarSemanticsMessage",
				   foundMsg instanceof GrammarSemanticsMessage);
		 */
    assertArrayEquals(expectedMessage.getArgs(), foundMsg.getArgs());
}

Example 10 with ErrorQueue

use of org.antlr.v4.test.runtime.ErrorQueue in project antlr4 by antlr.

the class BaseNodeTest method testActions.

public void testActions(String templates, String actionName, String action, String expected) throws org.antlr.runtime.RecognitionException {
    int lp = templates.indexOf('(');
    String name = templates.substring(0, lp);
    STGroup group = new STGroupString(templates);
    ST st = group.getInstanceOf(name);
    st.add(actionName, action);
    String grammar = st.render();
    ErrorQueue equeue = new ErrorQueue();
    Grammar g = new Grammar(grammar, equeue);
    if (g.ast != null && !g.ast.hasErrors) {
        SemanticPipeline sem = new SemanticPipeline(g);
        sem.process();
        ATNFactory factory = new ParserATNFactory(g);
        if (g.isLexer())
            factory = new LexerATNFactory((LexerGrammar) g);
        g.atn = factory.createATN();
        CodeGenerator gen = new CodeGenerator(g);
        ST outputFileST = gen.generateParser();
        String output = outputFileST.render();
        // System.out.println(output);
        String b = "#" + actionName + "#";
        int start = output.indexOf(b);
        String e = "#end-" + actionName + "#";
        int end = output.indexOf(e);
        String snippet = output.substring(start + b.length(), end);
        assertEquals(expected, snippet);
    }
    if (equeue.size() > 0) {
        System.err.println(equeue.toString());
    }
}