315 lines
17 KiB
JavaScript
315 lines
17 KiB
JavaScript
import { GraphQLEnumType, GraphQLScalarType, GraphQLUnionType, GraphQLInterfaceType, GraphQLObjectType, isSpecifiedScalarType, isScalarType, isEnumType, isUnionType, isInterfaceType, isObjectType, } from 'graphql';
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import { mapSchema, MapperKind, forEachDefaultValue, serializeInputValue, healSchema, parseInputValue, forEachField, } from '@graphql-tools/utils';
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import { checkForResolveTypeResolver } from './checkForResolveTypeResolver.js';
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import { extendResolversFromInterfaces } from './extendResolversFromInterfaces.js';
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export function addResolversToSchema({ schema, resolvers: inputResolvers, defaultFieldResolver, resolverValidationOptions = {}, inheritResolversFromInterfaces = false, updateResolversInPlace = false, }) {
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const { requireResolversToMatchSchema = 'error', requireResolversForResolveType } = resolverValidationOptions;
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const resolvers = inheritResolversFromInterfaces
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? extendResolversFromInterfaces(schema, inputResolvers)
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: inputResolvers;
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for (const typeName in resolvers) {
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const resolverValue = resolvers[typeName];
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const resolverType = typeof resolverValue;
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if (resolverType !== 'object') {
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throw new Error(`"${typeName}" defined in resolvers, but has invalid value "${resolverValue}". The resolver's value must be of type object.`);
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}
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const type = schema.getType(typeName);
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if (type == null) {
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if (requireResolversToMatchSchema === 'ignore') {
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continue;
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}
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throw new Error(`"${typeName}" defined in resolvers, but not in schema`);
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}
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else if (isSpecifiedScalarType(type)) {
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// allow -- without recommending -- overriding of specified scalar types
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for (const fieldName in resolverValue) {
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if (fieldName.startsWith('__')) {
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type[fieldName.substring(2)] = resolverValue[fieldName];
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}
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else {
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type[fieldName] = resolverValue[fieldName];
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}
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}
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}
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else if (isEnumType(type)) {
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const values = type.getValues();
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for (const fieldName in resolverValue) {
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if (!fieldName.startsWith('__') &&
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!values.some(value => value.name === fieldName) &&
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requireResolversToMatchSchema &&
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requireResolversToMatchSchema !== 'ignore') {
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throw new Error(`${type.name}.${fieldName} was defined in resolvers, but not present within ${type.name}`);
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}
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}
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}
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else if (isUnionType(type)) {
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for (const fieldName in resolverValue) {
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if (!fieldName.startsWith('__') &&
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requireResolversToMatchSchema &&
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requireResolversToMatchSchema !== 'ignore') {
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throw new Error(`${type.name}.${fieldName} was defined in resolvers, but ${type.name} is not an object or interface type`);
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}
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}
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}
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else if (isObjectType(type) || isInterfaceType(type)) {
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for (const fieldName in resolverValue) {
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if (!fieldName.startsWith('__')) {
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const fields = type.getFields();
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const field = fields[fieldName];
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if (field == null) {
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// Field present in resolver but not in schema
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if (requireResolversToMatchSchema && requireResolversToMatchSchema !== 'ignore') {
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throw new Error(`${typeName}.${fieldName} defined in resolvers, but not in schema`);
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}
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}
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else {
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// Field present in both the resolver and schema
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const fieldResolve = resolverValue[fieldName];
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if (typeof fieldResolve !== 'function' && typeof fieldResolve !== 'object') {
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throw new Error(`Resolver ${typeName}.${fieldName} must be object or function`);
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}
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}
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}
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}
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}
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}
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schema = updateResolversInPlace
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? addResolversToExistingSchema(schema, resolvers, defaultFieldResolver)
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: createNewSchemaWithResolvers(schema, resolvers, defaultFieldResolver);
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if (requireResolversForResolveType && requireResolversForResolveType !== 'ignore') {
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checkForResolveTypeResolver(schema, requireResolversForResolveType);
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}
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return schema;
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}
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function addResolversToExistingSchema(schema, resolvers, defaultFieldResolver) {
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var _a, _b, _c, _d, _e, _f, _g, _h, _j, _k, _l, _m;
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const typeMap = schema.getTypeMap();
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for (const typeName in resolvers) {
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const type = schema.getType(typeName);
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const resolverValue = resolvers[typeName];
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if (isScalarType(type)) {
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for (const fieldName in resolverValue) {
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if (fieldName.startsWith('__')) {
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type[fieldName.substring(2)] = resolverValue[fieldName];
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}
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else if (fieldName === 'astNode' && type.astNode != null) {
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type.astNode = {
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...type.astNode,
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description: (_b = (_a = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.astNode) === null || _a === void 0 ? void 0 : _a.description) !== null && _b !== void 0 ? _b : type.astNode.description,
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directives: ((_c = type.astNode.directives) !== null && _c !== void 0 ? _c : []).concat((_e = (_d = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.astNode) === null || _d === void 0 ? void 0 : _d.directives) !== null && _e !== void 0 ? _e : []),
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};
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}
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else if (fieldName === 'extensionASTNodes' && type.extensionASTNodes != null) {
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type.extensionASTNodes = type.extensionASTNodes.concat((_f = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.extensionASTNodes) !== null && _f !== void 0 ? _f : []);
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}
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else if (fieldName === 'extensions' &&
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type.extensions != null &&
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resolverValue.extensions != null) {
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type.extensions = Object.assign(Object.create(null), type.extensions, resolverValue.extensions);
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}
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else {
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type[fieldName] = resolverValue[fieldName];
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}
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}
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}
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else if (isEnumType(type)) {
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const config = type.toConfig();
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const enumValueConfigMap = config.values;
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for (const fieldName in resolverValue) {
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if (fieldName.startsWith('__')) {
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config[fieldName.substring(2)] = resolverValue[fieldName];
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}
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else if (fieldName === 'astNode' && config.astNode != null) {
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config.astNode = {
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...config.astNode,
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description: (_h = (_g = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.astNode) === null || _g === void 0 ? void 0 : _g.description) !== null && _h !== void 0 ? _h : config.astNode.description,
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directives: ((_j = config.astNode.directives) !== null && _j !== void 0 ? _j : []).concat((_l = (_k = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.astNode) === null || _k === void 0 ? void 0 : _k.directives) !== null && _l !== void 0 ? _l : []),
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};
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}
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else if (fieldName === 'extensionASTNodes' && config.extensionASTNodes != null) {
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config.extensionASTNodes = config.extensionASTNodes.concat((_m = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.extensionASTNodes) !== null && _m !== void 0 ? _m : []);
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}
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else if (fieldName === 'extensions' &&
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type.extensions != null &&
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resolverValue.extensions != null) {
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type.extensions = Object.assign(Object.create(null), type.extensions, resolverValue.extensions);
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}
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else if (enumValueConfigMap[fieldName]) {
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enumValueConfigMap[fieldName].value = resolverValue[fieldName];
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}
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}
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typeMap[typeName] = new GraphQLEnumType(config);
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}
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else if (isUnionType(type)) {
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for (const fieldName in resolverValue) {
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if (fieldName.startsWith('__')) {
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type[fieldName.substring(2)] = resolverValue[fieldName];
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}
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}
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}
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else if (isObjectType(type) || isInterfaceType(type)) {
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for (const fieldName in resolverValue) {
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if (fieldName.startsWith('__')) {
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// this is for isTypeOf and resolveType and all the other stuff.
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type[fieldName.substring(2)] = resolverValue[fieldName];
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continue;
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}
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const fields = type.getFields();
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const field = fields[fieldName];
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if (field != null) {
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const fieldResolve = resolverValue[fieldName];
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if (typeof fieldResolve === 'function') {
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// for convenience. Allows shorter syntax in resolver definition file
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field.resolve = fieldResolve.bind(resolverValue);
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}
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else {
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setFieldProperties(field, fieldResolve);
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}
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}
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}
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}
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}
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// serialize all default values prior to healing fields with new scalar/enum types.
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forEachDefaultValue(schema, serializeInputValue);
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// schema may have new scalar/enum types that require healing
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healSchema(schema);
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// reparse all default values with new parsing functions.
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forEachDefaultValue(schema, parseInputValue);
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if (defaultFieldResolver != null) {
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forEachField(schema, field => {
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if (!field.resolve) {
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field.resolve = defaultFieldResolver;
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}
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});
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}
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return schema;
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}
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function createNewSchemaWithResolvers(schema, resolvers, defaultFieldResolver) {
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schema = mapSchema(schema, {
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[MapperKind.SCALAR_TYPE]: type => {
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var _a, _b, _c, _d, _e, _f;
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const config = type.toConfig();
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const resolverValue = resolvers[type.name];
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if (!isSpecifiedScalarType(type) && resolverValue != null) {
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for (const fieldName in resolverValue) {
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if (fieldName.startsWith('__')) {
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config[fieldName.substring(2)] = resolverValue[fieldName];
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}
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else if (fieldName === 'astNode' && config.astNode != null) {
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config.astNode = {
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...config.astNode,
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description: (_b = (_a = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.astNode) === null || _a === void 0 ? void 0 : _a.description) !== null && _b !== void 0 ? _b : config.astNode.description,
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directives: ((_c = config.astNode.directives) !== null && _c !== void 0 ? _c : []).concat((_e = (_d = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.astNode) === null || _d === void 0 ? void 0 : _d.directives) !== null && _e !== void 0 ? _e : []),
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};
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}
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else if (fieldName === 'extensionASTNodes' && config.extensionASTNodes != null) {
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config.extensionASTNodes = config.extensionASTNodes.concat((_f = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.extensionASTNodes) !== null && _f !== void 0 ? _f : []);
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}
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else if (fieldName === 'extensions' &&
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config.extensions != null &&
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resolverValue.extensions != null) {
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config.extensions = Object.assign(Object.create(null), type.extensions, resolverValue.extensions);
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}
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else {
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config[fieldName] = resolverValue[fieldName];
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}
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}
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return new GraphQLScalarType(config);
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}
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},
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[MapperKind.ENUM_TYPE]: type => {
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var _a, _b, _c, _d, _e, _f;
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const resolverValue = resolvers[type.name];
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const config = type.toConfig();
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const enumValueConfigMap = config.values;
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if (resolverValue != null) {
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for (const fieldName in resolverValue) {
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if (fieldName.startsWith('__')) {
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config[fieldName.substring(2)] = resolverValue[fieldName];
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}
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else if (fieldName === 'astNode' && config.astNode != null) {
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config.astNode = {
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...config.astNode,
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description: (_b = (_a = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.astNode) === null || _a === void 0 ? void 0 : _a.description) !== null && _b !== void 0 ? _b : config.astNode.description,
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directives: ((_c = config.astNode.directives) !== null && _c !== void 0 ? _c : []).concat((_e = (_d = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.astNode) === null || _d === void 0 ? void 0 : _d.directives) !== null && _e !== void 0 ? _e : []),
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};
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}
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else if (fieldName === 'extensionASTNodes' && config.extensionASTNodes != null) {
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config.extensionASTNodes = config.extensionASTNodes.concat((_f = resolverValue === null || resolverValue === void 0 ? void 0 : resolverValue.extensionASTNodes) !== null && _f !== void 0 ? _f : []);
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}
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else if (fieldName === 'extensions' &&
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config.extensions != null &&
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resolverValue.extensions != null) {
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config.extensions = Object.assign(Object.create(null), type.extensions, resolverValue.extensions);
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}
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else if (enumValueConfigMap[fieldName]) {
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enumValueConfigMap[fieldName].value = resolverValue[fieldName];
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}
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}
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return new GraphQLEnumType(config);
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}
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},
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[MapperKind.UNION_TYPE]: type => {
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const resolverValue = resolvers[type.name];
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if (resolverValue != null) {
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const config = type.toConfig();
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if (resolverValue['__resolveType']) {
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config.resolveType = resolverValue['__resolveType'];
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}
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return new GraphQLUnionType(config);
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}
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},
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[MapperKind.OBJECT_TYPE]: type => {
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const resolverValue = resolvers[type.name];
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if (resolverValue != null) {
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const config = type.toConfig();
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if (resolverValue['__isTypeOf']) {
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config.isTypeOf = resolverValue['__isTypeOf'];
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}
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return new GraphQLObjectType(config);
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}
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},
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[MapperKind.INTERFACE_TYPE]: type => {
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const resolverValue = resolvers[type.name];
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if (resolverValue != null) {
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const config = type.toConfig();
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if (resolverValue['__resolveType']) {
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config.resolveType = resolverValue['__resolveType'];
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}
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return new GraphQLInterfaceType(config);
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}
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},
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[MapperKind.COMPOSITE_FIELD]: (fieldConfig, fieldName, typeName) => {
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const resolverValue = resolvers[typeName];
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if (resolverValue != null) {
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const fieldResolve = resolverValue[fieldName];
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if (fieldResolve != null) {
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const newFieldConfig = { ...fieldConfig };
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if (typeof fieldResolve === 'function') {
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// for convenience. Allows shorter syntax in resolver definition file
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newFieldConfig.resolve = fieldResolve.bind(resolverValue);
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}
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else {
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setFieldProperties(newFieldConfig, fieldResolve);
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}
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return newFieldConfig;
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}
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}
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},
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});
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if (defaultFieldResolver != null) {
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schema = mapSchema(schema, {
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[MapperKind.OBJECT_FIELD]: fieldConfig => ({
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...fieldConfig,
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resolve: fieldConfig.resolve != null ? fieldConfig.resolve : defaultFieldResolver,
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}),
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});
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}
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return schema;
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}
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function setFieldProperties(field, propertiesObj) {
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for (const propertyName in propertiesObj) {
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field[propertyName] = propertiesObj[propertyName];
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}
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}
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