attachDirectiveResolvers.js 5.1 KB

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  1. var __extends = (this && this.__extends) || (function () {
  2. var extendStatics = function (d, b) {
  3. extendStatics = Object.setPrototypeOf ||
  4. ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
  5. function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
  6. return extendStatics(d, b);
  7. };
  8. return function (d, b) {
  9. extendStatics(d, b);
  10. function __() { this.constructor = d; }
  11. d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  12. };
  13. })();
  14. var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
  15. function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
  16. return new (P || (P = Promise))(function (resolve, reject) {
  17. function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
  18. function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
  19. function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
  20. step((generator = generator.apply(thisArg, _arguments || [])).next());
  21. });
  22. };
  23. var __generator = (this && this.__generator) || function (thisArg, body) {
  24. var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
  25. return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
  26. function verb(n) { return function (v) { return step([n, v]); }; }
  27. function step(op) {
  28. if (f) throw new TypeError("Generator is already executing.");
  29. while (_) try {
  30. if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
  31. if (y = 0, t) op = [op[0] & 2, t.value];
  32. switch (op[0]) {
  33. case 0: case 1: t = op; break;
  34. case 4: _.label++; return { value: op[1], done: false };
  35. case 5: _.label++; y = op[1]; op = [0]; continue;
  36. case 7: op = _.ops.pop(); _.trys.pop(); continue;
  37. default:
  38. if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
  39. if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
  40. if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
  41. if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
  42. if (t[2]) _.ops.pop();
  43. _.trys.pop(); continue;
  44. }
  45. op = body.call(thisArg, _);
  46. } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
  47. if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
  48. }
  49. };
  50. Object.defineProperty(exports, "__esModule", { value: true });
  51. var graphql_1 = require("graphql");
  52. var schemaVisitor_1 = require("../schemaVisitor");
  53. function attachDirectiveResolvers(schema, directiveResolvers) {
  54. if (typeof directiveResolvers !== 'object') {
  55. throw new Error("Expected directiveResolvers to be of type object, got " + typeof directiveResolvers);
  56. }
  57. if (Array.isArray(directiveResolvers)) {
  58. throw new Error('Expected directiveResolvers to be of type object, got Array');
  59. }
  60. var schemaDirectives = Object.create(null);
  61. Object.keys(directiveResolvers).forEach(function (directiveName) {
  62. schemaDirectives[directiveName] = /** @class */ (function (_super) {
  63. __extends(class_1, _super);
  64. function class_1() {
  65. return _super !== null && _super.apply(this, arguments) || this;
  66. }
  67. class_1.prototype.visitFieldDefinition = function (field) {
  68. var _this = this;
  69. var resolver = directiveResolvers[directiveName];
  70. var originalResolver = field.resolve || graphql_1.defaultFieldResolver;
  71. var directiveArgs = this.args;
  72. field.resolve = function () {
  73. var args = [];
  74. for (var _i = 0; _i < arguments.length; _i++) {
  75. args[_i] = arguments[_i];
  76. }
  77. var source = args[0] /* original args */, context = args[2], info = args[3];
  78. return resolver(function () { return __awaiter(_this, void 0, void 0, function () { return __generator(this, function (_a) {
  79. return [2 /*return*/, originalResolver.apply(field, args)];
  80. }); }); }, source, directiveArgs, context, info);
  81. };
  82. };
  83. return class_1;
  84. }(schemaVisitor_1.SchemaDirectiveVisitor));
  85. });
  86. schemaVisitor_1.SchemaDirectiveVisitor.visitSchemaDirectives(schema, schemaDirectives);
  87. }
  88. exports.default = attachDirectiveResolvers;
  89. //# sourceMappingURL=attachDirectiveResolvers.js.map