swc/crates/swc_bundler/tests/.cache/deno/9c76992410f3623cd49b48606cff60cd3d96ffa3.ts
2021-11-09 20:42:49 +09:00

140 lines
4.7 KiB
TypeScript

// Loaded from https://deno.land/x/graphql_deno@v15.0.0/lib/type/directives.js
import objectEntries from '../polyfills/objectEntries.js';
import { SYMBOL_TO_STRING_TAG } from '../polyfills/symbols.js';
import inspect from '../jsutils/inspect.js';
import toObjMap from '../jsutils/toObjMap.js';
import devAssert from '../jsutils/devAssert.js';
import instanceOf from '../jsutils/instanceOf.js';
import defineToJSON from '../jsutils/defineToJSON.js';
import isObjectLike from '../jsutils/isObjectLike.js';
import { DirectiveLocation } from '../language/directiveLocation.js';
import { GraphQLString, GraphQLBoolean } from './scalars.js';
import { argsToArgsConfig, GraphQLNonNull } from './definition.js';
/**
* Test if the given value is a GraphQL directive.
*/
// eslint-disable-next-line no-redeclare
export function isDirective(directive) {
return instanceOf(directive, GraphQLDirective);
}
export function assertDirective(directive) {
if (!isDirective(directive)) {
throw new Error(`Expected ${inspect(directive)} to be a GraphQL directive.`);
}
return directive;
}
/**
* Directives are used by the GraphQL runtime as a way of modifying execution
* behavior. Type system creators will usually not create these directly.
*/
export class GraphQLDirective {
constructor(config) {
this.name = config.name;
this.description = config.description;
this.locations = config.locations;
this.isRepeatable = config.isRepeatable ?? false;
this.extensions = config.extensions && toObjMap(config.extensions);
this.astNode = config.astNode;
devAssert(config.name, 'Directive must be named.');
devAssert(Array.isArray(config.locations), `@${config.name} locations must be an Array.`);
const args = config.args ?? {};
devAssert(isObjectLike(args) && !Array.isArray(args), `@${config.name} args must be an object with argument names as keys.`);
this.args = objectEntries(args).map(([argName, argConfig]) => ({
name: argName,
description: argConfig.description,
type: argConfig.type,
defaultValue: argConfig.defaultValue,
extensions: argConfig.extensions && toObjMap(argConfig.extensions),
astNode: argConfig.astNode
}));
}
toConfig() {
return {
name: this.name,
description: this.description,
locations: this.locations,
args: argsToArgsConfig(this.args),
isRepeatable: this.isRepeatable,
extensions: this.extensions,
astNode: this.astNode
};
}
toString() {
return '@' + this.name;
} // $FlowFixMe Flow doesn't support computed properties yet
get [SYMBOL_TO_STRING_TAG]() {
return 'GraphQLDirective';
}
}
defineToJSON(GraphQLDirective);
/**
* Used to conditionally include fields or fragments.
*/
export const GraphQLIncludeDirective = new GraphQLDirective({
name: 'include',
description: 'Directs the executor to include this field or fragment only when the `if` argument is true.',
locations: [DirectiveLocation.FIELD, DirectiveLocation.FRAGMENT_SPREAD, DirectiveLocation.INLINE_FRAGMENT],
args: {
if: {
type: GraphQLNonNull(GraphQLBoolean),
description: 'Included when true.'
}
}
});
/**
* Used to conditionally skip (exclude) fields or fragments.
*/
export const GraphQLSkipDirective = new GraphQLDirective({
name: 'skip',
description: 'Directs the executor to skip this field or fragment when the `if` argument is true.',
locations: [DirectiveLocation.FIELD, DirectiveLocation.FRAGMENT_SPREAD, DirectiveLocation.INLINE_FRAGMENT],
args: {
if: {
type: GraphQLNonNull(GraphQLBoolean),
description: 'Skipped when true.'
}
}
});
/**
* Constant string used for default reason for a deprecation.
*/
export const DEFAULT_DEPRECATION_REASON = 'No longer supported';
/**
* Used to declare element of a GraphQL schema as deprecated.
*/
export const GraphQLDeprecatedDirective = new GraphQLDirective({
name: 'deprecated',
description: 'Marks an element of a GraphQL schema as no longer supported.',
locations: [DirectiveLocation.FIELD_DEFINITION, DirectiveLocation.ENUM_VALUE],
args: {
reason: {
type: GraphQLString,
description: '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/).',
defaultValue: DEFAULT_DEPRECATION_REASON
}
}
});
/**
* The full list of specified directives.
*/
export const specifiedDirectives = Object.freeze([GraphQLIncludeDirective, GraphQLSkipDirective, GraphQLDeprecatedDirective]);
export function isSpecifiedDirective(directive) {
return specifiedDirectives.some(({
name
}) => name === directive.name);
}