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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / eslint / lib / rules / no-ex-assign.js

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/eslint/lib/rules/no-ex-assign.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/eslint/lib/rules/no-ex-assign.js
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+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/eslint/lib/rules/no-ex-assign.js
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+/**
+ * @fileoverview Rule to flag assignment of the exception parameter
+ * @author Stephen Murray <spmurrayzzz>
+ */
+
+"use strict";
+
+const astUtils = require("./utils/ast-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+    meta: {
+        type: "problem",
+
+        docs: {
+            description: "disallow reassigning exceptions in `catch` clauses",
+            category: "Possible Errors",
+            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);
+            }
+        };
+
+    }
+};