@typescript-eslint/eslint-plugin
Version:
TypeScript plugin for ESLint
55 lines • 2.27 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (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 });
exports.isArrayMethodCallWithPredicate = isArrayMethodCallWithPredicate;
const type_utils_1 = require("@typescript-eslint/type-utils");
const utils_1 = require("@typescript-eslint/utils");
const tsutils = __importStar(require("ts-api-utils"));
const misc_1 = require("./misc");
const ARRAY_PREDICATE_FUNCTIONS = new Set([
'filter',
'find',
'findIndex',
'findLast',
'findLastIndex',
'some',
'every',
]);
function isArrayMethodCallWithPredicate(context, services, node) {
if (node.callee.type !== utils_1.AST_NODE_TYPES.MemberExpression) {
return false;
}
const staticAccessValue = (0, misc_1.getStaticMemberAccessValue)(node.callee, context);
if (!ARRAY_PREDICATE_FUNCTIONS.has(staticAccessValue)) {
return false;
}
const checker = services.program.getTypeChecker();
const type = (0, type_utils_1.getConstrainedTypeAtLocation)(services, node.callee.object);
return tsutils
.unionTypeParts(type)
.flatMap(part => tsutils.intersectionTypeParts(part))
.some(t => checker.isArrayType(t) || checker.isTupleType(t));
}
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