ags

home/ags/node_modules/eslint-plugin-promise/rules/no-promise-in-callback.js

@@ -0,0 +1,43 @@
+/**
+ * Rule: no-promise-in-callback
+ * Discourage using promises inside of callbacks.
+ */
+
+'use strict'
+
+const { getAncestors } = require('./lib/eslint-compat')
+const getDocsUrl = require('./lib/get-docs-url')
+const isPromise = require('./lib/is-promise')
+const isInsideCallback = require('./lib/is-inside-callback')
+
+module.exports = {
+  meta: {
+    type: 'suggestion',
+    docs: {
+      description: 'Disallow using promises inside of callbacks.',
+      url: getDocsUrl('no-promise-in-callback'),
+    },
+    schema: [],
+  },
+  create(context) {
+    return {
+      CallExpression(node) {
+        if (!isPromise(node)) return
+
+        // if i'm returning the promise, it's probably not really a callback
+        // function, and I should be okay....
+        if (node.parent.type === 'ReturnStatement') return
+
+        // what about if the parent is an ArrowFunctionExpression
+        // would that imply an implicit return?
+
+        if (getAncestors(context, node).some(isInsideCallback)) {
+          context.report({
+            node: node.callee,
+            message: 'Avoid using promises inside of callbacks.',
+          })
+        }
+      },
+    }
+  },
+}