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node_modules/eslint/lib/rules/no-process-env.js

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+/**
+ * @fileoverview Disallow the use of process.env()
+ * @author Vignesh Anand
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+    meta: {
+        type: "suggestion",
+
+        docs: {
+            description: "disallow the use of `process.env`",
+            category: "Node.js and CommonJS",
+            recommended: false,
+            url: "https://eslint.org/docs/rules/no-process-env"
+        },
+
+        schema: []
+    },
+
+    create(context) {
+
+        return {
+
+            MemberExpression(node) {
+                const objectName = node.object.name,
+                    propertyName = node.property.name;
+
+                if (objectName === "process" && !node.computed && propertyName && propertyName === "env") {
+                    context.report({ node, message: "Unexpected use of process.env." });
+                }
+
+            }
+
+        };
+
+    }
+};