graphql/type/directives.mjs.map

A Query Language and Runtime which can target any service.

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@category Directives */\n\nimport { devAssert } from '../jsutils/devAssert.ts';\nimport { inspect } from '../jsutils/inspect.ts';\nimport { instanceOf } from '../jsutils/instanceOf.ts';\nimport { isObjectLike } from '../jsutils/isObjectLike.ts';\nimport { keyValMap } from '../jsutils/keyValMap.ts';\nimport type { Maybe } from '../jsutils/Maybe.ts';\nimport type { ObjMap } from '../jsutils/ObjMap.ts';\nimport { toObjMapWithSymbols } from '../jsutils/toObjMap.ts';\n\nimport type {\n  DirectiveDefinitionNode,\n  DirectiveExtensionNode,\n} from '../language/ast.ts';\nimport { DirectiveLocation } from '../language/directiveLocation.ts';\n\nimport { assertName } from './assertName.ts';\nimport type {\n  GraphQLArgumentConfig,\n  GraphQLFieldNormalizedConfigArgumentMap,\n  GraphQLSchemaElement,\n} from './definition.ts';\nimport { GraphQLArgument, GraphQLNonNull } from './definition.ts';\nimport { GraphQLBoolean, GraphQLInt, GraphQLString } from './scalars.ts';\n\n/** @private */\nconst directiveSymbol: unique symbol = Symbol('Directive');\n\n/**\n * Test if the given value is a GraphQL directive.\n * @param directive - Value to inspect.\n * @returns True when the value is a GraphQLDirective.\n * @example\n * ```ts\n * import { DirectiveLocation } from 'graphql/language';\n * import { GraphQLDirective, GraphQLString, isDirective } from 'graphql/type';\n *\n * const upper = new GraphQLDirective({\n *   name: 'upper',\n *   locations: [DirectiveLocation.FIELD_DEFINITION],\n * });\n *\n * isDirective(upper); // => true\n * isDirective(GraphQLString); // => false\n * ```\n */\nexport function isDirective(directive: unknown): directive is GraphQLDirective {\n  return instanceOf(directive, directiveSymbol, GraphQLDirective);\n}\n\n/**\n * Returns the value as a GraphQLDirective, or throws if it is not a directive.\n * @param directive - Value to inspect.\n * @returns The value typed as a GraphQLDirective.\n * @example\n * ```ts\n * import { DirectiveLocation } from 'graphql/language';\n * import { assertDirective, GraphQLDirective, GraphQLString } from 'graphql/type';\n *\n * const upper = new GraphQLDirective({\n *   name: 'upper',\n *   locations: [DirectiveLocation.FIELD_DEFINITION],\n * });\n *\n * assertDirective(upper); // => upper\n * assertDirective(GraphQLString); // throws an error\n * ```\n */\nexport function assertDirective(directive: unknown): GraphQLDirective {\n  if (!isDirective(directive)) {\n    throw new Error(\n      `Expected ${inspect(directive)} to be a GraphQL directive.`,\n    );\n  }\n  return directive;\n}\n\n/**\n * Custom extensions\n * @remarks\n * Use a unique identifier name for your extension, for example the name of\n * your library or project. Do not use a shortened identifier as this increases\n * the risk of conflicts. We recommend you add at most one extension field,\n * an object which can contain all the values you need.\n */\nexport interface GraphQLDirectiveExtensions {\n  [attributeName: string | symbol]: unknown;\n}\n\n/**\n * Directives are used by the GraphQL runtime as a way of modifying execution\n * behavior. Type system creators will usually not create these directly.\n */\nexport class GraphQLDirective implements GraphQLSchemaElement {\n  /**\n   * Internal runtime marker used to identify GraphQLDirective instances.\n   * @private\n   */\n  readonly __kind: symbol;\n  /** The GraphQL name for this schema element. */\n  name: string;\n  /** Human-readable description for this schema element, if provided. */\n  description: Maybe<string>;\n  /** Locations where this directive may be applied. */\n  locations: ReadonlyArray<DirectiveLocation>;\n  /** Arguments accepted by this field or directive. */\n  args: ReadonlyArray<GraphQLArgument>;\n  /** Whether this directive may appear more than once at the same location. */\n  isRepeatable: boolean;\n  /** Reason this element is deprecated, if one was provided. */\n  deprecationReason: Maybe<string>;\n  /** Custom extension fields reserved for users. */\n  extensions: Readonly<GraphQLDirectiveExtensions>;\n  /** AST node from which this schema element was built, if available. */\n  astNode: Maybe<DirectiveDefinitionNode>;\n  /** AST extension nodes applied to this schema element. */\n  extensionASTNodes: ReadonlyArray<DirectiveExtensionNode>;\n\n  /**\n   * Creates a GraphQLDirective instance.\n   * @param config - Configuration describing this object.\n   * @example\n   * ```ts\n   * import { DirectiveLocation, parse } from 'graphql/language';\n   * import {\n   *   GraphQLBoolean,\n   *   GraphQLDirective,\n   *   GraphQLInt,\n   *   GraphQLNonNull,\n   * } from 'graphql/type';\n   *\n   * const document = parse(`\n   *   directive @cacheControl(maxAge: Int) repeatable on FIELD_DEFINITION\n   *   extend directive @cacheControl(maxAge: Int) on FIELD_DEFINITION\n   * `);\n   * const definition = document.definitions[0];\n   *\n   * const cacheControl = new GraphQLDirective({\n   *   name: 'cacheControl',\n   *   description: 'Controls HTTP cache hints for a field.',\n   *   locations: [DirectiveLocation.FIELD_DEFINITION],\n   *   args: {\n   *     inheritMaxAge: {\n   *       description: 'Inherit the parent cache hint.',\n   *       type: new GraphQLNonNull(GraphQLBoolean),\n   *       default: { value: false },\n   *       deprecationReason: 'Use maxAge instead.',\n   *       extensions: { scope: 'cache' },\n   *     },\n   *     maxAge: {\n   *       type: GraphQLInt,\n   *       astNode: definition.arguments[0],\n   *     },\n   *   },\n   *   isRepeatable: true,\n   *   deprecationReason: 'Use @cache instead.',\n   *   extensions: { scope: 'cache' },\n   *   astNode: definition,\n   *   extensionASTNodes: [document.definitions[1]],\n   * });\n   *\n   * cacheControl.name; // => 'cacheControl'\n   * cacheControl.description; // => 'Controls HTTP cache hints for a field.'\n   * cacheControl.args[0].name; // => 'inheritMaxAge'\n   * cacheControl.args[0].default.value; // => false\n   * cacheControl.isRepeatable; // => true\n   * cacheControl.extensions; // => { scope: 'cache' }\n   * ```\n   */\n  constructor(config: Readonly<GraphQLDirectiveConfig>) {\n    this.__kind = directiveSymbol;\n    this.name = assertName(config.name);\n    this.description = config.description;\n    this.locations = config.locations;\n    this.isRepeatable = config.isRepeatable ?? false;\n    this.deprecationReason = config.deprecationReason;\n    this.extensions = toObjMapWithSymbols(config.extensions);\n    this.astNode = config.astNode;\n    this.extensionASTNodes = config.extensionASTNodes ?? [];\n\n    devAssert(\n      Array.isArray(config.locations),\n      `@${this.name} locations must be an Array.`,\n    );\n\n    const args = config.args ?? {};\n    devAssert(\n      isObjectLike(args) && !Array.isArray(args),\n      `@${this.name} args must be an object with argument names as keys.`,\n    );\n\n    this.args = Object.entries(args).map(\n      ([argName, argConfig]) => new GraphQLArgument(this, argName, argConfig),\n    );\n  }\n\n  /**\n   * Returns the value used by `Object.prototype.toString`.\n   * @returns The built-in string tag for this object.\n   */\n  get [Symbol.toStringTag](): string {\n    return 'GraphQLDirective';\n  }\n\n  /**\n   * Returns a normalized configuration object for this object.\n   * @returns A configuration object that can be used to recreate this object.\n   * @example\n   * ```ts\n   * import { DirectiveLocation } from 'graphql/language';\n   * import { GraphQLDirective, GraphQLString } from 'graphql/type';\n   *\n   * const tag = new GraphQLDirective({\n   *   name: 'tag',\n   *   locations: [DirectiveLocation.FIELD_DEFINITION],\n   *   args: {\n   *     name: { type: GraphQLString },\n   *   },\n   * });\n   *\n   * const config = tag.toConfig();\n   * const tagCopy = new GraphQLDirective(config);\n   *\n   * config.args.name.type; // => GraphQLString\n   * tagCopy.args[0].name; // => 'name'\n   * ```\n   */\n  toConfig(): GraphQLDirectiveNormalizedConfig {\n    return {\n      name: this.name,\n      description: this.description,\n      locations: this.locations,\n      args: keyValMap(\n        this.args,\n        (arg) => arg.name,\n        (arg) => arg.toConfig(),\n      ),\n      isRepeatable: this.isRepeatable,\n      deprecationReason: this.deprecationReason,\n      extensions: this.extensions,\n      astNode: this.astNode,\n      extensionASTNodes: this.extensionASTNodes,\n    };\n  }\n\n  /**\n   * Returns the schema coordinate identifying this directive.\n   * @returns The directive schema coordinate.\n   * @example\n   * ```ts\n   * import { DirectiveLocation } from 'graphql/language';\n   * import { GraphQLDirective } from 'graphql/type';\n   *\n   * const tag = new GraphQLDirective({\n   *   name: 'tag',\n   *   locations: [DirectiveLocation.FIELD_DEFINITION],\n   * });\n   *\n   * tag.toString(); // => '@tag'\n   * ```\n   */\n  toString(): string {\n    return '@' + this.name;\n  }\n\n  /**\n   * Returns the JSON representation used when this object is serialized.\n   * @returns The JSON-serializable representation.\n   * @example\n   * ```ts\n   * import { DirectiveLocation } from 'graphql/language';\n   * import { GraphQLDirective } from 'graphql/type';\n   *\n   * const tag = new GraphQLDirective({\n   *   name: 'tag',\n   *   locations: [DirectiveLocation.FIELD_DEFINITION],\n   * });\n   *\n   * tag.toJSON(); // => '@tag'\n   * JSON.stringify({ directive: tag }); // => '{\"directive\":\"@tag\"}'\n   * ```\n   */\n  toJSON(): string {\n    return this.toString();\n  }\n}\n\n/** Configuration used to construct a GraphQLDirective. */\nexport interface GraphQLDirectiveConfig {\n  /** The GraphQL name for this schema element. */\n  name: string;\n  /** Human-readable description for this schema element, if provided. */\n  description?: Maybe<string>;\n  /** Locations where this directive may be applied. */\n  locations: ReadonlyArray<DirectiveLocation>;\n  /** Arguments accepted by this field or directive. */\n  args?: Maybe<ObjMap<GraphQLArgumentConfig>>;\n  /** Whether this directive may appear more than once at the same location. */\n  isRepeatable?: Maybe<boolean>;\n  /** Reason this element is deprecated, if one was provided. */\n  deprecationReason?: Maybe<string>;\n  /** Custom extension fields reserved for users. */\n  extensions?: Maybe<Readonly<GraphQLDirectiveExtensions>>;\n  /** AST node from which this schema element was built, if available. */\n  astNode?: Maybe<DirectiveDefinitionNode>;\n  /** AST extension nodes applied to this schema element. */\n  extensionASTNodes?: Maybe<ReadonlyArray<DirectiveExtensionNode>>;\n}\n\n/** @internal */\nexport interface GraphQLDirectiveNormalizedConfig extends GraphQLDirectiveConfig {\n  args: GraphQLFieldNormalizedConfigArgumentMap;\n  isRepeatable: boolean;\n  extensions: Readonly<GraphQLDirectiveExtensions>;\n  extensionASTNodes: ReadonlyArray<DirectiveExtensionNode>;\n}\n\n/** Used to conditionally include fields or fragments. */\nexport const GraphQLIncludeDirective: GraphQLDirective = new GraphQLDirective({\n  name: 'include',\n  description:\n    'Directs the executor to include this field or fragment only when the `if` argument is true.',\n  locations: [\n    DirectiveLocation.FIELD,\n    DirectiveLocation.FRAGMENT_SPREAD,\n    DirectiveLocation.INLINE_FRAGMENT,\n  ],\n  args: {\n    if: {\n      type: new GraphQLNonNull(GraphQLBoolean),\n      description: 'Included when true.',\n    },\n  },\n});\n\n/** Used to conditionally skip (exclude) fields or fragments. */\nexport const GraphQLSkipDirective: GraphQLDirective = new GraphQLDirective({\n  name: 'skip',\n  description:\n    'Directs the executor to skip this field or fragment when the `if` argument is true.',\n  locations: [\n    DirectiveLocation.FIELD,\n    DirectiveLocation.FRAGMENT_SPREAD,\n    DirectiveLocation.INLINE_FRAGMENT,\n  ],\n  args: {\n    if: {\n      type: new GraphQLNonNull(GraphQLBoolean),\n      description: 'Skipped when true.',\n    },\n  },\n});\n\n/**\n * Experimental directive used to conditionally defer fragments.\n *\n * This directive is exported for schemas that explicitly opt in to incremental\n * delivery. It is not included in `specifiedDirectives`.\n */\nexport const GraphQLDeferDirective: GraphQLDirective = new GraphQLDirective({\n  name: 'defer',\n  description:\n    'Directs the executor to defer this fragment when the `if` argument is true or undefined.',\n  locations: [\n    DirectiveLocation.FRAGMENT_SPREAD,\n    DirectiveLocation.INLINE_FRAGMENT,\n  ],\n  args: {\n    if: {\n      type: new GraphQLNonNull(GraphQLBoolean),\n      description: 'Deferred when true or undefined.',\n      default: { value: true },\n    },\n    label: {\n      type: GraphQLString,\n      description: 'Unique name',\n    },\n  },\n});\n\n/**\n * Experimental directive used to conditionally stream list fields.\n *\n * This directive is exported for schemas that explicitly opt in to incremental\n * delivery. It is not included in `specifiedDirectives`.\n */\nexport const GraphQLStreamDirective: GraphQLDirective = new GraphQLDirective({\n  name: 'stream',\n  description:\n    'Directs the executor to stream plural fields when the `if` argument is true or undefined.',\n  locations: [DirectiveLocation.FIELD],\n  args: {\n    initialCount: {\n      default: { value: 0 },\n      type: new GraphQLNonNull(GraphQLInt),\n      description: 'Number of items to return immediately',\n    },\n    if: {\n      type: new GraphQLNonNull(GraphQLBoolean),\n      description: 'Stream when true or undefined.',\n      default: { value: true },\n    },\n    label: {\n      type: GraphQLString,\n      description: 'Unique name',\n    },\n  },\n});\n\n/** Constant string used for default reason for a deprecation. */\nexport const DEFAULT_DEPRECATION_REASON = 'No longer supported';\n\n/**\n * Used to declare element of a GraphQL schema as deprecated.\n *\n * The `reason` argument is non-null and defaults to\n * `DEFAULT_DEPRECATION_REASON`.\n */\nexport const GraphQLDeprecatedDirective: GraphQLDirective =\n  new GraphQLDirective({\n    name: 'deprecated',\n    description: 'Marks an element of a GraphQL schema as no longer supported.',\n    locations: [\n      DirectiveLocation.FIELD_DEFINITION,\n      DirectiveLocation.ARGUMENT_DEFINITION,\n      DirectiveLocation.INPUT_FIELD_DEFINITION,\n      DirectiveLocation.ENUM_VALUE,\n      DirectiveLocation.DIRECTIVE_DEFINITION,\n    ],\n    args: {\n      reason: {\n        type: new GraphQLNonNull(GraphQLString),\n        description:\n          'Explains why this element was deprecated, usually also including a suggestion for how to access supported similar data. Formatted using the Markdown syntax, as specified by [CommonMark](https://commonmark.org/).',\n        default: { value: DEFAULT_DEPRECATION_REASON },\n      },\n    },\n  });\n\n/** Used to provide a URL for specifying the behavior of custom scalar definitions. */\nexport const GraphQLSpecifiedByDirective: GraphQLDirective =\n  new GraphQLDirective({\n    name: 'specifiedBy',\n    description: 'Exposes a URL that specifies the behavior of this scalar.',\n    locations: [DirectiveLocation.SCALAR],\n    args: {\n      url: {\n        type: new GraphQLNonNull(GraphQLString),\n        description: 'The URL that specifies the behavior of this scalar.',\n      },\n    },\n  });\n\n/** Used to indicate an Input Object is a OneOf Input Object. */\nexport const GraphQLOneOfDirective: GraphQLDirective = new GraphQLDirective({\n  name: 'oneOf',\n  description:\n    'Indicates exactly one field must be supplied and this field must not be `null`.',\n  locations: [DirectiveLocation.INPUT_OBJECT],\n  args: {},\n});\n\n/**\n * Disables error propagation (experimental).\n *\n * @internal\n */\nexport const GraphQLDisableErrorPropagationDirective: GraphQLDirective =\n  new GraphQLDirective({\n    name: 'experimental_disableErrorPropagation',\n    description: 'Disables error propagation.',\n    locations: [\n      DirectiveLocation.QUERY,\n      DirectiveLocation.MUTATION,\n      DirectiveLocation.SUBSCRIPTION,\n    ],\n  });\n\n/**\n * Full list of stable directives specified by GraphQL.js.\n *\n * Experimental `@defer` and `@stream` are exported separately and are not\n * included in this list.\n */\nexport const specifiedDirectives: ReadonlyArray<GraphQLDirective> =\n  Object.freeze([\n    GraphQLIncludeDirective,\n    GraphQLSkipDirective,\n    GraphQLDeprecatedDirective,\n    GraphQLSpecifiedByDirective,\n    GraphQLOneOfDirective,\n  ]);\n\n/**\n * Returns true when the directive is one of the directives specified by GraphQL.\n * @param directive - Directive to inspect.\n * @returns True when the directive is specified by GraphQL.\n * @example\n * ```ts\n * import {\n *   GraphQLDirective,\n *   GraphQLIncludeDirective,\n *   isSpecifiedDirective,\n * } from 'graphql/type';\n * import { DirectiveLocation } from 'graphql/language';\n *\n * const customDirective = new GraphQLDirective({\n *   name: 'auth',\n *   locations: [DirectiveLocation.FIELD_DEFINITION],\n * });\n *\n * isSpecifiedDirective(GraphQLIncludeDirective); // => true\n * isSpecifiedDirective(customDirective); // => false\n * ```\n */\nexport function isSpecifiedDirective(directive: GraphQLDirective): boolean {\n  return specifiedDirectives.some(({ name }) => name === directive.name);\n}\n"]}