63 lines
2.2 KiB
Plaintext
63 lines
2.2 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const utils_1 = require("@typescript-eslint/utils");
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const ast_utils_1 = require("@typescript-eslint/utils/ast-utils");
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const util_1 = require("../util");
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exports.default = (0, util_1.createRule)({
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name: 'no-array-constructor',
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meta: {
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type: 'suggestion',
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docs: {
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description: 'Disallow generic `Array` constructors',
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extendsBaseRule: true,
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recommended: 'recommended',
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},
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fixable: 'code',
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messages: {
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useLiteral: 'The array literal notation [] is preferable.',
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},
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schema: [],
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},
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defaultOptions: [],
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create(context) {
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const sourceCode = context.sourceCode;
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function getArgumentsText(node) {
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const lastToken = sourceCode.getLastToken(node);
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if (lastToken == null || !(0, ast_utils_1.isClosingParenToken)(lastToken)) {
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return '';
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}
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let firstToken = node.callee;
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do {
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firstToken = sourceCode.getTokenAfter(firstToken);
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if (!firstToken || firstToken === lastToken) {
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return '';
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}
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} while (!(0, ast_utils_1.isOpeningParenToken)(firstToken));
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return sourceCode.text.slice(firstToken.range[1], lastToken.range[0]);
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}
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/**
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* Disallow construction of dense arrays using the Array constructor
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* @param node node to evaluate
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*/
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function check(node) {
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if (node.arguments.length !== 1 &&
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node.callee.type === utils_1.AST_NODE_TYPES.Identifier &&
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node.callee.name === 'Array' &&
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!node.typeArguments) {
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context.report({
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node,
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messageId: 'useLiteral',
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fix(fixer) {
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const argsText = getArgumentsText(node);
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return fixer.replaceText(node, `[${argsText}]`);
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},
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});
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}
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}
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return {
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CallExpression: check,
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NewExpression: check,
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};
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},
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});
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