RubyConstantCompleter.java

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package org.netbeans.modules.ruby;

import java.util.List;
import java.util.Set;
import org.netbeans.modules.csl.api.CompletionProposal;
import org.netbeans.modules.ruby.elements.IndexedConstant;
import org.netbeans.modules.ruby.lexer.Call;

final class RubyConstantCompleter extends RubyBaseCompleter {

    private final Call call;

    static boolean complete(
            final List<? super CompletionProposal> proposals,
            final CompletionRequest request,
            final int anchor,
            final boolean caseSensitive,
            final Call call) {
        RubyConstantCompleter rsc = new RubyConstantCompleter(proposals, request, anchor, caseSensitive, call);
        return rsc.complete();
    }

    private RubyConstantCompleter(
            final List<? super CompletionProposal> proposals,
            final CompletionRequest request,
            final int anchor,
            final boolean caseSensitive,
            final Call call) {
        super(proposals, request, anchor, caseSensitive);
        this.call = call;
    }

    private boolean complete() {
        if (getIndex() == null) {
            return false;
        }

        if (call == Call.NONE) {
            return false;
        }

        RubyType type = call.getType();
        if (call == Call.LOCAL && !type.isKnown()) {
            String classFqn = AstUtilities.getFqnName(request.path);
            if (classFqn.length() > 0) {
                type = RubyType.create(classFqn);
            }
        }

        Set<? extends IndexedConstant> constants = getIndex().getConstants(type, request.prefix);
        for (IndexedConstant constant : constants) {
            RubyCompletionItem item = new RubyCompletionItem(constant, anchor, request);
            item.setSmart(true);
            propose(item);
        }
        return true;
    }
}