Example usage for org.antlr.v4.runtime TokenStream getText

Introduction

In this page you can find the example usage for org.antlr.v4.runtime TokenStream getText.

Prototype

public String getText();

Source Link

Document

Return the text of all tokens in the stream.

Usage

From source file:io.mindmaps.graql.internal.parser.QueryParser.java

License:Open Source License

/**
 * Parse any part of a Graql query//  ww  w.  j  a v  a  2s . com
 * @param parseRule a method on GraqlParser that yields the parse rule you want to use (e.g. GraqlParser::variable)
 * @param visit a method on QueryVisitor that visits the parse rule you specified (e.g. QueryVisitor::visitVariable)
 * @param tokens the token stream to read
 * @param <T> The type the query is expected to parse to
 * @param <S> The type of the parse rule being used
 * @return the parsed result
 */
private <T, S extends ParseTree> T parseQueryFragment(Function<GraqlParser, S> parseRule,
        BiFunction<QueryVisitor, S, T> visit, TokenStream tokens) {
    GraqlErrorListener errorListener = new GraqlErrorListener(tokens.getText());
    return parseQueryFragment(parseRule, visit, errorListener, tokens);
}

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From source file:org.ballerinalang.langserver.completions.util.CompletionUtil.java

License:Open Source License

public static void getPrunedSource(LSContext context) throws WorkspaceDocumentException, SourcePruneException {
    WorkspaceDocumentManager documentManager = context.get(CompletionKeys.DOC_MANAGER_KEY);
    String uri = context.get(DocumentServiceKeys.FILE_URI_KEY);
    Position position = context.get(DocumentServiceKeys.POSITION_KEY).getPosition();
    Path path = Paths.get(URI.create(uri));
    String documentContent = documentManager.getFileContent(path);
    BallerinaParser parser = CommonUtil.prepareParser(documentContent, true);
    parser.removeErrorListeners();//from  w  w w  .  j a v  a2  s.com
    parser.compilationUnit();
    if (parser.getNumberOfSyntaxErrors() == 0) {
        return;
    }
    TokenStream tokenStream = parser.getTokenStream();
    List<Token> tokenList = new ArrayList<>(((CommonTokenStream) tokenStream).getTokens());

    Optional<Token> tokenAtCursor = searchTokenAtCursor(tokenList, position.getLine(), position.getCharacter());

    if (!tokenAtCursor.isPresent()) {
        throw new SourcePruneException("Could not find token at cursor");
    }

    SourcePruner.pruneSource(tokenStream, tokenAtCursor.get().getTokenIndex(), context);
    documentManager.setPrunedContent(path, tokenStream.getText());
}

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