Function createManyToManyPathMap

test/fixtures/snapshot/typescript.js:119559–119604

()

    var BuilderState;
    (function (BuilderState) {
        function createManyToManyPathMap() {
            function create(forward, reverse, deleted) {
                var map = {
                    clone: function () { return create(new ts.Map(forward), new ts.Map(reverse), deleted && new ts.Set(deleted)); },
                    forEach: function (fn) { return forward.forEach(fn); },
                    getKeys: function (v) { return reverse.get(v); },
                    getValues: function (k) { return forward.get(k); },
                    hasKey: function (k) { return forward.has(k); },
                    keys: function () { return forward.keys(); },
                    deletedKeys: function () { return deleted; },
                    deleteKey: function (k) {
                        (deleted || (deleted = new ts.Set())).add(k);
                        var set = forward.get(k);
                        if (!set) {
                            return false;
                        }
                        set.forEach(function (v) { return deleteFromMultimap(reverse, v, k); });
                        forward.delete(k);
                        return true;
                    },
                    set: function (k, vSet) {
                        deleted === null || deleted === void 0 ? void 0 : deleted.delete(k);
                        var existingVSet = forward.get(k);
                        forward.set(k, vSet);
                        existingVSet === null || existingVSet === void 0 ? void 0 : existingVSet.forEach(function (v) {
                            if (!vSet.has(v)) {
                                deleteFromMultimap(reverse, v, k);
                            }
                        });
                        vSet.forEach(function (v) {
                            if (!(existingVSet === null || existingVSet === void 0 ? void 0 : existingVSet.has(v))) {
                                addToMultimap(reverse, v, k);
                            }
                        });
                        return map;
                    },
                    clear: function () {
                        forward.clear();
                        reverse.clear();
                        deleted === null || deleted === void 0 ? void 0 : deleted.clear();
                    }
                };
                return map;
            }
            return create(new ts.Map(), new ts.Map(), /*deleted*/ undefined);
        }
        BuilderState.createManyToManyPathMap = createManyToManyPathMap;
        function addToMultimap(map, k, v) {
            var set = map.get(k);