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98 lines
3.1 KiB
98 lines
3.1 KiB
4 months ago
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import { devAssert } from '../jsutils/devAssert.mjs';
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import { Kind } from '../language/kinds.mjs';
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import { parse } from '../language/parser.mjs';
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import { specifiedDirectives } from '../type/directives.mjs';
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import { GraphQLSchema } from '../type/schema.mjs';
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import { assertValidSDL } from '../validation/validate.mjs';
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import { extendSchemaImpl } from './extendSchema.mjs';
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/**
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* This takes the ast of a schema document produced by the parse function in
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* src/language/parser.js.
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*
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* If no schema definition is provided, then it will look for types named Query,
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* Mutation and Subscription.
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*
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* Given that AST it constructs a GraphQLSchema. The resulting schema
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* has no resolve methods, so execution will use default resolvers.
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*/
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export function buildASTSchema(documentAST, options) {
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(documentAST != null && documentAST.kind === Kind.DOCUMENT) ||
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devAssert(false, 'Must provide valid Document AST.');
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if (
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(options === null || options === void 0 ? void 0 : options.assumeValid) !==
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true &&
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(options === null || options === void 0
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? void 0
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: options.assumeValidSDL) !== true
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) {
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assertValidSDL(documentAST);
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}
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const emptySchemaConfig = {
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description: undefined,
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types: [],
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directives: [],
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extensions: Object.create(null),
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extensionASTNodes: [],
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assumeValid: false,
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};
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const config = extendSchemaImpl(emptySchemaConfig, documentAST, options);
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if (config.astNode == null) {
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for (const type of config.types) {
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switch (type.name) {
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// Note: While this could make early assertions to get the correctly
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// typed values below, that would throw immediately while type system
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// validation with validateSchema() will produce more actionable results.
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case 'Query':
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// @ts-expect-error validated in `validateSchema`
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config.query = type;
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break;
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case 'Mutation':
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// @ts-expect-error validated in `validateSchema`
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config.mutation = type;
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break;
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case 'Subscription':
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// @ts-expect-error validated in `validateSchema`
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config.subscription = type;
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break;
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}
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}
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}
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const directives = [
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...config.directives, // If specified directives were not explicitly declared, add them.
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...specifiedDirectives.filter((stdDirective) =>
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config.directives.every(
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(directive) => directive.name !== stdDirective.name,
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),
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),
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];
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return new GraphQLSchema({ ...config, directives });
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}
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/**
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* A helper function to build a GraphQLSchema directly from a source
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* document.
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*/
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export function buildSchema(source, options) {
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const document = parse(source, {
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noLocation:
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options === null || options === void 0 ? void 0 : options.noLocation,
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allowLegacyFragmentVariables:
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options === null || options === void 0
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? void 0
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: options.allowLegacyFragmentVariables,
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});
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return buildASTSchema(document, {
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assumeValidSDL:
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options === null || options === void 0 ? void 0 : options.assumeValidSDL,
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assumeValid:
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options === null || options === void 0 ? void 0 : options.assumeValid,
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});
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}
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