You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.4 KiB
52 lines
1.4 KiB
/** |
|
* @fileoverview Rule to flag assignment of the exception parameter |
|
* @author Stephen Murray <spmurrayzzz> |
|
*/ |
|
|
|
"use strict"; |
|
|
|
const astUtils = require("./utils/ast-utils"); |
|
|
|
//------------------------------------------------------------------------------ |
|
// Rule Definition |
|
//------------------------------------------------------------------------------ |
|
|
|
/** @type {import('../shared/types').Rule} */ |
|
module.exports = { |
|
meta: { |
|
type: "problem", |
|
|
|
docs: { |
|
description: "Disallow reassigning exceptions in `catch` clauses", |
|
recommended: true, |
|
url: "https://eslint.org/docs/rules/no-ex-assign" |
|
}, |
|
|
|
schema: [], |
|
|
|
messages: { |
|
unexpected: "Do not assign to the exception parameter." |
|
} |
|
}, |
|
|
|
create(context) { |
|
|
|
/** |
|
* Finds and reports references that are non initializer and writable. |
|
* @param {Variable} variable A variable to check. |
|
* @returns {void} |
|
*/ |
|
function checkVariable(variable) { |
|
astUtils.getModifyingReferences(variable.references).forEach(reference => { |
|
context.report({ node: reference.identifier, messageId: "unexpected" }); |
|
}); |
|
} |
|
|
|
return { |
|
CatchClause(node) { |
|
context.getDeclaredVariables(node).forEach(checkVariable); |
|
} |
|
}; |
|
|
|
} |
|
};
|
|
|