Urara-Blog/node_modules/.pnpm-store/v3/files/a3/40b371772196299f255352d099b6571e3a6d0ab5674d4659bc8b3310162e2b8d066ec0b5322c200db5e432bfe3ef872c7a8092ef3b673aea1486e037fe1e75
2022-08-14 01:14:53 +08:00

57 lines
1.7 KiB
Text

/**
* @fileoverview Reports useless `catch` clauses that just rethrow their error.
* @author Teddy Katz
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
/** @type {import('../shared/types').Rule} */
module.exports = {
meta: {
type: "suggestion",
docs: {
description: "Disallow unnecessary `catch` clauses",
recommended: true,
url: "https://eslint.org/docs/rules/no-useless-catch"
},
schema: [],
messages: {
unnecessaryCatchClause: "Unnecessary catch clause.",
unnecessaryCatch: "Unnecessary try/catch wrapper."
}
},
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,
messageId: "unnecessaryCatchClause"
});
} else {
context.report({
node: node.parent,
messageId: "unnecessaryCatch"
});
}
}
}
};
}
};