no-array-constructor.js
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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const experimental_utils_1 = require("@typescript-eslint/experimental-utils");
const util = __importStar(require("../util"));
exports.default = util.createRule({
name: 'no-array-constructor',
meta: {
type: 'suggestion',
docs: {
description: 'Disallow generic `Array` constructors',
category: 'Stylistic Issues',
recommended: 'error',
extendsBaseRule: true,
},
fixable: 'code',
messages: {
useLiteral: 'The array literal notation [] is preferable.',
},
schema: [],
},
defaultOptions: [],
create(context) {
/**
* Disallow construction of dense arrays using the Array constructor
* @param node node to evaluate
*/
function check(node) {
if (node.arguments.length !== 1 &&
node.callee.type === experimental_utils_1.AST_NODE_TYPES.Identifier &&
node.callee.name === 'Array' &&
!node.typeParameters &&
!util.isOptionalCallExpression(node)) {
context.report({
node,
messageId: 'useLiteral',
fix(fixer) {
if (node.arguments.length === 0) {
return fixer.replaceText(node, '[]');
}
const fullText = context.getSourceCode().getText(node);
const preambleLength = node.callee.range[1] - node.range[0];
return fixer.replaceText(node, `[${fullText.slice(preambleLength + 1, -1)}]`);
},
});
}
}
return {
CallExpression: check,
NewExpression: check,
};
},
});
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