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luhn-generator

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A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.default = createTemplateBuilder; var _options = require("./options"); var _string = _interopRequireDefault(require("./string")); var _literal = _interopRequireDefault(require("./literal")); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } const NO_PLACEHOLDER = (0, _options.validate)({ placeholderPattern: false }); function createTemplateBuilder(formatter, defaultOpts) { const templateFnCache = new WeakMap(); const templateAstCache = new WeakMap(); const cachedOpts = defaultOpts || (0, _options.validate)(null); return Object.assign((tpl, ...args) => { if (typeof tpl === "string") { if (args.length > 1) throw new Error("Unexpected extra params."); return extendedTrace((0, _string.default)(formatter, tpl, (0, _options.merge)(cachedOpts, (0, _options.validate)(args[0])))); } else if (Array.isArray(tpl)) { let builder = templateFnCache.get(tpl); if (!builder) { builder = (0, _literal.default)(formatter, tpl, cachedOpts); templateFnCache.set(tpl, builder); } return extendedTrace(builder(args)); } else if (typeof tpl === "object" && tpl) { if (args.length > 0) throw new Error("Unexpected extra params."); return createTemplateBuilder(formatter, (0, _options.merge)(cachedOpts, (0, _options.validate)(tpl))); } throw new Error(`Unexpected template param ${typeof tpl}`); }, { ast: (tpl, ...args) => { if (typeof tpl === "string") { if (args.length > 1) throw new Error("Unexpected extra params."); return (0, _string.default)(formatter, tpl, (0, _options.merge)((0, _options.merge)(cachedOpts, (0, _options.validate)(args[0])), NO_PLACEHOLDER))(); } else if (Array.isArray(tpl)) { let builder = templateAstCache.get(tpl); if (!builder) { builder = (0, _literal.default)(formatter, tpl, (0, _options.merge)(cachedOpts, NO_PLACEHOLDER)); templateAstCache.set(tpl, builder); } return builder(args)(); } throw new Error(`Unexpected template param ${typeof tpl}`); } }); } function extendedTrace(fn) { let rootStack = ""; try { throw new Error(); } catch (error) { if (error.stack) { rootStack = error.stack.split("\n").slice(3).join("\n"); } } return arg => { try { return fn(arg); } catch (err) { err.stack += `\n =============\n${rootStack}`; throw err; } }; }