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app_vue/node_modules/eslint/lib/rules/no-obj-calls.js

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+/**
+ * @fileoverview Rule to flag use of an object property of the global object (Math and JSON) as a function
+ * @author James Allardice
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const { CALL, CONSTRUCT, ReferenceTracker } = require("eslint-utils");
+const getPropertyName = require("./utils/ast-utils").getStaticPropertyName;
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+const nonCallableGlobals = ["Atomics", "JSON", "Math", "Reflect"];
+
+/**
+ * Returns the name of the node to report
+ * @param {ASTNode} node A node to report
+ * @returns {string} name to report
+ */
+function getReportNodeName(node) {
+    if (node.type === "ChainExpression") {
+        return getReportNodeName(node.expression);
+    }
+    if (node.type === "MemberExpression") {
+        return getPropertyName(node);
+    }
+    return node.name;
+}
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+    meta: {
+        type: "problem",
+
+        docs: {
+            description: "disallow calling global object properties as functions",
+            category: "Possible Errors",
+            recommended: true,
+            url: "https://eslint.org/docs/rules/no-obj-calls"
+        },
+
+        schema: [],
+
+        messages: {
+            unexpectedCall: "'{{name}}' is not a function.",
+            unexpectedRefCall: "'{{name}}' is reference to '{{ref}}', which is not a function."
+        }
+    },
+
+    create(context) {
+
+        return {
+            Program() {
+                const scope = context.getScope();
+                const tracker = new ReferenceTracker(scope);
+                const traceMap = {};
+
+                for (const g of nonCallableGlobals) {
+                    traceMap[g] = {
+                        [CALL]: true,
+                        [CONSTRUCT]: true
+                    };
+                }
+
+                for (const { node, path } of tracker.iterateGlobalReferences(traceMap)) {
+                    const name = getReportNodeName(node.callee);
+                    const ref = path[0];
+                    const messageId = name === ref ? "unexpectedCall" : "unexpectedRefCall";
+
+                    context.report({ node, messageId, data: { name, ref } });
+                }
+            }
+        };
+    }
+};