Examples with GroovyCompletionProposals eu.esdihumboldt.hale.ui.util.groovy.GroovyCompletionProposals used on opensource projects

Example 1 with GroovyCompletionProposals

use of eu.esdihumboldt.hale.ui.util.groovy.GroovyCompletionProposals in project hale by halestudio.

the class GroovyASTCompletionProcessor method computeCompletionProposals.

@Override
public ICompletionProposal[] computeCompletionProposals(final ITextViewer viewer, final int offset) {
    if (proposals == null || proposals.isEmpty()) {
        return null;
    }
    if (viewer instanceof CompilingSourceViewer<?>) {
        CompilingSourceViewer<?> csv = (CompilingSourceViewer<?>) viewer;
        try {
            Object compiled = csv.getCompiled().get();
            if (compiled instanceof GroovyAST) {
                // the Groovy AST
                GroovyAST ast = (GroovyAST) compiled;
                // the line (0-based)
                int line = csv.getDocument().getLineOfOffset(offset);
                // the line column (0-based)
                int column = offset - csv.getDocument().getLineOffset(line);
                // locations in Groovy AST are 1-based
                line++;
                column++;
                List<ICompletionProposal> list = new ArrayList<>();
                // add proposals of individual computers
                for (GroovyCompletionProposals proposal : proposals) {
                    Iterable<? extends ICompletionProposal> computed = proposal.computeProposals(viewer, ast, line, column, offset);
                    if (computed != null) {
                        Iterables.addAll(list, computed);
                    }
                }
                return list.toArray(new ICompletionProposal[list.size()]);
            }
        } catch (Exception e) {
            log.warn("Failed to get AST to compute completion proposals", e);
        }
    }
    return null;
}