@typescript-eslint/eslint-plugin
Version:
TypeScript plugin for ESLint
52 lines (51 loc) • 1.82 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const utils_1 = require("@typescript-eslint/utils");
const util_1 = require("../util");
exports.default = (0, util_1.createRule)({
name: 'no-array-constructor',
meta: {
type: 'suggestion',
docs: {
description: 'Disallow generic `Array` constructors',
extendsBaseRule: true,
recommended: 'recommended',
},
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 === utils_1.AST_NODE_TYPES.Identifier &&
node.callee.name === 'Array' &&
!node.typeArguments &&
!(0, util_1.isOptionalCallExpression)(node)) {
context.report({
node,
messageId: 'useLiteral',
fix(fixer) {
if (node.arguments.length === 0) {
return fixer.replaceText(node, '[]');
}
const fullText = context.sourceCode.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,
};
},
});