Examples with FollowElement org.eclipse.xtext.ide.editor.contentassist.antlr.FollowElement used on opensource projects

Example 1 with FollowElement

use of org.eclipse.xtext.ide.editor.contentassist.antlr.FollowElement in project xtext-eclipse by eclipse.

the class Bug303200Test method testBug303200_02.

@Test
public void testBug303200_02() throws Exception {
    Bug303200TestLanguageParser parser = get(Bug303200TestLanguageParser.class);
    Collection<FollowElement> elements = parser.getFollowElements("function f() {", false);
    for (FollowElement element : elements) {
        recursiveTestFollowElements(parser, element);
    }
}

Example 2 with FollowElement

use of org.eclipse.xtext.ide.editor.contentassist.antlr.FollowElement in project xtext-eclipse by eclipse.

the class Bug303200Test method testBug303200_01.

@Test
public void testBug303200_01() throws Exception {
    Bug303200TestLanguageParser parser = get(Bug303200TestLanguageParser.class);
    Collection<FollowElement> followElements = parser.getFollowElements("function f() {", false);
    assertEquals(4, followElements.size());
}

Example 3 with FollowElement

use of org.eclipse.xtext.ide.editor.contentassist.antlr.FollowElement in project xtext-eclipse by eclipse.

the class Bug303200Test method recursiveTestFollowElements.

protected void recursiveTestFollowElements(Bug303200TestLanguageParser parser, FollowElement element) {
    if (element.getLookAhead() > 1) {
        Collection<FollowElement> elements = parser.getFollowElements(element);
        for (FollowElement followElement : elements) {
            assertTrue(followElement.getLookAhead() < element.getLookAhead());
            recursiveTestFollowElements(parser, followElement);
        }
    }
}

Example 4 with FollowElement

use of org.eclipse.xtext.ide.editor.contentassist.antlr.FollowElement in project xtext-xtend by eclipse.

the class FlexerBasedContentAssistContextFactory method createContextsForLastCompleteNode.

@Override
protected void createContextsForLastCompleteNode(EObject previousModel, boolean strict) {
    String currentNodePrefix = getPrefix(currentNode);
    if (!Strings.isEmpty(currentNodePrefix) && !currentNode.getText().equals(currentNodePrefix)) {
        InternalFlexer flexer = flexerFactory.createFlexer(new StringReader(currentNodePrefix));
        try {
            int token = flexer.advance();
            if (token == Token.EOF) {
                // error case - nothing could be parsed
                return;
            }
            while (token != Token.EOF) {
                if (isErrorToken(token))
                    return;
                token = flexer.advance();
            }
        } catch (IOException e) {
            log.error(e.getMessage(), e);
            return;
        }
    }
    String prefix = "";
    Collection<FollowElement> followElements = parseFollowElements(completionOffset, strict);
    // String completeInput = viewer.getDocument().get(0, completionOffset);
    // Collection<FollowElement> followElements = parser.getFollowElements(completeInput, strict);
    doCreateContexts(lastCompleteNode, currentNode, prefix, previousModel, followElements);
}

Example 5 with FollowElement

use of org.eclipse.xtext.ide.editor.contentassist.antlr.FollowElement in project n4js by eclipse.

the class ContentAssistContextFactory method createContextsForLastCompleteNode.

@Override
protected void createContextsForLastCompleteNode(EObject previousModel, boolean strict) {
    String currentNodePrefix = getPrefix(currentNode);
    if (!Strings.isEmpty(currentNodePrefix) && !currentNode.getText().equals(currentNodePrefix)) {
        lexer.setCharStream(new ANTLRStringStream(currentNodePrefix));
        Token token = lexer.nextToken();
        if (token == Token.EOF_TOKEN) {
            // error case - nothing could be parsed
            return;
        }
        while (token != Token.EOF_TOKEN) {
            if (isErrorToken(token))
                return;
            token = lexer.nextToken();
        }
    }
    String prefix = "";
    Collection<FollowElement> followElements = getParser().getFollowElements(rootNode, 0, completionOffset, strict);
    doCreateContexts(lastCompleteNode, currentNode, prefix, previousModel, followElements);
}