+++ /dev/null
-/**
- * @fileoverview Reports useless `catch` clauses that just rethrow their error.
- * @author Teddy Katz
- */
-
-"use strict";
-
-//------------------------------------------------------------------------------
-// Rule Definition
-//------------------------------------------------------------------------------
-
-module.exports = {
- meta: {
- type: "suggestion",
-
- docs: {
- description: "disallow unnecessary `catch` clauses",
- category: "Best Practices",
- recommended: true,
- url: "https://eslint.org/docs/rules/no-useless-catch"
- },
-
- schema: []
- },
-
- create(context) {
- return {
- CatchClause(node) {
- if (
- node.param &&
- node.param.type === "Identifier" &&
- node.body.body.length &&
- node.body.body[0].type === "ThrowStatement" &&
- node.body.body[0].argument.type === "Identifier" &&
- node.body.body[0].argument.name === node.param.name
- ) {
- if (node.parent.finalizer) {
- context.report({
- node,
- message: "Unnecessary catch clause."
- });
- } else {
- context.report({
- node: node.parent,
- message: "Unnecessary try/catch wrapper."
- });
- }
- }
- }
- };
- }
-};