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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.needsWhitespace = needsWhitespace; exports.needsWhitespaceBefore = needsWhitespaceBefore; exports.needsWhitespaceAfter = needsWhitespaceAfter; exports.needsParens = needsParens; var whitespace = _interopRequireWildcard(require("./whitespace")); var parens = _interopRequireWildcard(require("./parentheses")); 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 expandAliases(obj) { const newObj = {}; function add(type, func) { const fn = newObj[type]; newObj[type] = fn ? function (node, parent, stack) { const result = fn(node, parent, stack); return result == null ? func(node, parent, stack) : result; } : func; } for (const type of Object.keys(obj)) { const aliases = t.FLIPPED_ALIAS_KEYS[type]; if (aliases) { for (const alias of aliases) { add(alias, obj[type]); } } else { add(type, obj[type]); } } return newObj; } const expandedParens = expandAliases(parens); const expandedWhitespaceNodes = expandAliases(whitespace.nodes); const expandedWhitespaceList = expandAliases(whitespace.list); function find(obj, node, parent, printStack) { const fn = obj[node.type]; return fn ? fn(node, parent, printStack) : null; } function isOrHasCallExpression(node) { if (t.isCallExpression(node)) { return true; } return t.isMemberExpression(node) && isOrHasCallExpression(node.object); } function needsWhitespace(node, parent, type) { if (!node) return 0; if (t.isExpressionStatement(node)) { node = node.expression; } let linesInfo = find(expandedWhitespaceNodes, node, parent); if (!linesInfo) { const items = find(expandedWhitespaceList, node, parent); if (items) { for (let i = 0; i < items.length; i++) { linesInfo = needsWhitespace(items[i], node, type); if (linesInfo) break; } } } if (typeof linesInfo === "object" && linesInfo !== null) { return linesInfo[type] || 0; } return 0; } function needsWhitespaceBefore(node, parent) { return needsWhitespace(node, parent, "before"); } function needsWhitespaceAfter(node, parent) { return needsWhitespace(node, parent, "after"); } function needsParens(node, parent, printStack) { if (!parent) return false; if (t.isNewExpression(parent) && parent.callee === node) { if (isOrHasCallExpression(node)) return true; } return find(expandedParens, node, parent, printStack); }