Examples with IMatcher mb.nabl2.terms.matching.TermMatch.IMatcher used on opensource projects

Example 1 with IMatcher

use of mb.nabl2.terms.matching.TermMatch.IMatcher in project nabl by metaborg.

the class ScopeGraphEdgePrimitive method call.

@Override
public Optional<ITerm> call(IScopeGraphUnit unit, ITerm term, List<ITerm> terms) throws InterpreterException {
    return unit.solution().flatMap(sol -> {
        final IRelation3<S, Label, ? extends ITerm> edges = getEdges(sol.scopeGraph());
        final IMatcher<S> sourceMatcher = getSourceMatcher();
        return M.<ITerm>cases(// @formatter:off
        M.term(sourceMatcher, (t, source) -> {
            List<ITerm> edgeTerms = Lists.newArrayList();
            for (Map.Entry<Label, ? extends ITerm> edge : edges.get(source)) {
                edgeTerms.add(B.newTuple(edge.getKey(), edge.getValue()));
            }
            return B.newList(edgeTerms);
        }), M.tuple2(sourceMatcher, Label.matcher(), (t, source, label) -> {
            List<ITerm> targetTerms = Lists.newArrayList();
            for (ITerm target : edges.get(source, label)) {
                targetTerms.add(target);
            }
            return B.newList(targetTerms);
        })).match(term, sol.unifier());
    });
}