inversify-graphql/union-builder.js

Builds dependency-inverted GraphQL schemas with InversifyJS

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.InversifyUnionTypeBuilder = void 0;
const inv = __importStar(require("inversify"));
const gql = __importStar(require("graphql"));
const interfaces_private_1 = require("./interfaces-private");
let InversifyUnionTypeBuilder = class InversifyUnionTypeBuilder {
    constructor() {
        this.extensions = 'all';
    }
    build() {
        if (this.built)
            return this.built;
        if (this.building)
            throw new Error(`The type ${this.constructor.name} is involved in a circlar referenciation loop.
            If this is intended, please use the thunk version of 'fields' - i.e.  "fields: () => ({ /* field definition */ })`);
        this.building = true;
        // resolve types
        // deep copy item (this.config() might return a constant => must not be modified)
        const cfg = { ...this.config() };
        if (typeof cfg.types === 'function') {
            const cpy = cfg.types;
            cfg.types = () => [...cpy()];
        }
        else if (cfg.types instanceof Array) {
            cfg.types = [...cfg.types];
        }
        // map types
        let types;
        if (typeof cfg.types === 'function') {
            const cpy = cfg.types;
            types = () => cpy().map(x => this.builders.buildType(x));
        }
        else {
            types = cfg.types.map(x => this.builders.buildType(x));
        }
        // return real object type
        this.built = new gql.GraphQLUnionType({
            ...cfg,
            types: types,
            resolveType: async (value, ctx, info) => {
                const ret = await cfg.resolveType(value, ctx, info);
                if (!ret)
                    return null;
                return this.builders.buildType(ret);
            }
        });
        delete this.building;
        return this.built;
    }
};
__decorate([
    inv.inject(interfaces_private_1.ITypeCache),
    __metadata("design:type", interfaces_private_1.ITypeCache)
], InversifyUnionTypeBuilder.prototype, "builders", void 0);
InversifyUnionTypeBuilder = __decorate([
    inv.injectable()
], InversifyUnionTypeBuilder);
exports.InversifyUnionTypeBuilder = InversifyUnionTypeBuilder;
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