@platform/cell.typesystem/lib/TypeSystem.builder/TypeBuilderNs.mjs

The 'strongly typed sheets' system of the CellOS.

import { Uri } from '../common';
import { TypeBuilderType } from './TypeBuilderType';
export class TypeBuilderNs {
    constructor(args) {
        this.types = [];
        this.uri = Uri.ns(args.uri);
    }
    type(typename, options = {}) {
        const { startColumn } = options;
        const uri = this.uri;
        typename = (typename || '').trim();
        const exists = this.types.some(item => item.typename === typename);
        if (exists) {
            const err = `The typename '${typename}' already exists`;
            throw new Error(err);
        }
        const type = TypeBuilderType.create({ uri, typename, startColumn });
        this.types.push(type);
        return type;
    }
}
TypeBuilderNs.create = (args) => new TypeBuilderNs(args);