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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

163 lines (127 loc) 4.24 kB
"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports._params = _params; exports._parameters = _parameters; exports._param = _param; exports._methodHead = _methodHead; exports._predicate = _predicate; exports._functionHead = _functionHead; exports.FunctionDeclaration = exports.FunctionExpression = FunctionExpression; exports.ArrowFunctionExpression = ArrowFunctionExpression; var t = _interopRequireWildcard(require("@babel/types")); function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; } function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; } function _params(node) { this.print(node.typeParameters, node); this.token("("); this._parameters(node.params, node); this.token(")"); this.print(node.returnType, node); } function _parameters(parameters, parent) { for (let i = 0; i < parameters.length; i++) { this._param(parameters[i], parent); if (i < parameters.length - 1) { this.token(","); this.space(); } } } function _param(parameter, parent) { this.printJoin(parameter.decorators, parameter); this.print(parameter, parent); if (parameter.optional) this.token("?"); this.print(parameter.typeAnnotation, parameter); } function _methodHead(node) { const kind = node.kind; const key = node.key; if (kind === "get" || kind === "set") { this.word(kind); this.space(); } if (node.async) { this._catchUp("start", key.loc); this.word("async"); this.space(); } if (kind === "method" || kind === "init") { if (node.generator) { this.token("*"); } } if (node.computed) { this.token("["); this.print(key, node); this.token("]"); } else { this.print(key, node); } if (node.optional) { this.token("?"); } this._params(node); } function _predicate(node) { if (node.predicate) { if (!node.returnType) { this.token(":"); } this.space(); this.print(node.predicate, node); } } function _functionHead(node) { if (node.async) { this.word("async"); this.space(); } this.word("function"); if (node.generator) this.token("*"); this.space(); if (node.id) { this.print(node.id, node); } this._params(node); this._predicate(node); } function FunctionExpression(node) { this._functionHead(node); this.space(); this.print(node.body, node); } function ArrowFunctionExpression(node) { if (node.async) { this.word("async"); this.space(); } const firstParam = node.params[0]; if (node.params.length === 1 && t.isIdentifier(firstParam) && !hasTypes(node, firstParam)) { if ((this.format.retainLines || node.async) && node.loc && node.body.loc && node.loc.start.line < node.body.loc.start.line) { this.token("("); if (firstParam.loc && firstParam.loc.start.line > node.loc.start.line) { this.indent(); this.print(firstParam, node); this.dedent(); this._catchUp("start", node.body.loc); } else { this.print(firstParam, node); } this.token(")"); } else { this.print(firstParam, node); } } else { this._params(node); } this._predicate(node); this.space(); this.token("=>"); this.space(); this.print(node.body, node); } function hasTypes(node, param) { return node.typeParameters || node.returnType || param.typeAnnotation || param.optional || param.trailingComments; }