WIP - add extractor, generate snippet_data

node_modules/relay-runtime/lib/RelayConnectionInterface.js

@@ -0,0 +1,86 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ *  strict-local
+ * @format
+ */
+'use strict';
+
+var _defineProperty2 = require("@babel/runtime/helpers/interopRequireDefault")(require("@babel/runtime/helpers/defineProperty"));
+
+var CONNECTION_CALLS = {
+  after: true,
+  before: true,
+  find: true,
+  first: true,
+  last: true,
+  surrounds: true
+};
+var REQUIRED_RANGE_CALLS = {
+  find: true,
+  first: true,
+  last: true
+};
+var config = {
+  CLIENT_MUTATION_ID: 'clientMutationId',
+  CURSOR: 'cursor',
+
+  /**
+   * Whether `edges` fields are expected to have `source` fields.
+   */
+  EDGES_HAVE_SOURCE_FIELD: false,
+  EDGES: 'edges',
+  END_CURSOR: 'endCursor',
+  HAS_NEXT_PAGE: 'hasNextPage',
+  HAS_PREV_PAGE: 'hasPreviousPage',
+  NODE: 'node',
+  PAGE_INFO_TYPE: 'PageInfo',
+  PAGE_INFO: 'pageInfo',
+  START_CURSOR: 'startCursor'
+};
+/**
+ * @internal
+ *
+ * Defines logic relevant to the informal "Connection" GraphQL interface.
+ */
+
+var RelayConnectionInterface = {
+  inject: function inject(newConfig) {
+    config = newConfig;
+  },
+  get: function get() {
+    return config;
+  },
+
+  /**
+   * Checks whether a call exists strictly to encode which parts of a connection
+   * to fetch. Fields that only differ by connection call values should have the
+   * same identity.
+   */
+  isConnectionCall: function isConnectionCall(call) {
+    return CONNECTION_CALLS.hasOwnProperty(call.name);
+  },
+
+  /**
+   * Checks whether a set of calls on a connection supply enough information to
+   * fetch the range fields (i.e. `edges` and `page_info`).
+   */
+  hasRangeCalls: function hasRangeCalls(calls) {
+    return calls.some(function (call) {
+      return REQUIRED_RANGE_CALLS.hasOwnProperty(call.name);
+    });
+  },
+
+  /**
+   * Gets a default record representing a connection's `PAGE_INFO`.
+   */
+  getDefaultPageInfo: function getDefaultPageInfo() {
+    var _ref;
+
+    return _ref = {}, (0, _defineProperty2["default"])(_ref, config.END_CURSOR, null), (0, _defineProperty2["default"])(_ref, config.HAS_NEXT_PAGE, false), (0, _defineProperty2["default"])(_ref, config.HAS_PREV_PAGE, false), (0, _defineProperty2["default"])(_ref, config.START_CURSOR, null), _ref;
+  }
+};
+module.exports = RelayConnectionInterface;