fix

src/editor/value_explorer.js

@@ -49,7 +49,15 @@ export const stringify_for_header = v => {
     // TODO clickable link, 'fn', cursive
     return 'fn ' + v.name
   } else if (isPromise(v)) {
-    return 'Promise<>'
+    if(v.status == null) {
+      return `Promise<pending>`
+    } else {
+      if(status.ok) {
+        return `Promise<fulfilled: ${stringify_for_header(status.value)}>`
+      } else {
+        return `Promise<fulfilled: ${stringify_for_header(status.error)}>`
+      }
+    }
   } else if(isError(v)) {
     return v.toString()
   } else if(type == 'object') {

src/patch_promise.js

@@ -5,11 +5,11 @@ export const patch_promise = window => {
     return
   }
 
-  class PromiseWithStatus extends Promise {
+  class PromiseWithStatus extends window.Promise {
     constructor(fn) {
       let status 
       let is_constructor_finished = false
-      const p = new Promise.Original(
+      const p = new window.Promise.Original(
         (resolve, reject) => {
           fn(
             (value) => {
@@ -47,7 +47,7 @@ export const patch_promise = window => {
     }
   }
 
-  PromiseWithStatus.Original = Promise
+  PromiseWithStatus.Original = window.Promise
 
   window.Promise = PromiseWithStatus
 }

test/test.js

@@ -2767,4 +2767,16 @@ const y = x()`
     assert_equal(logs, [1, 2])
   }),
 
+  test('async/await bug', async () => {
+    const code = `
+      const f = async () => {
+        console.log('f')
+      }
+
+      await f()
+    `
+    const i = await test_initial_state_async(code)
+    const cursor = COMMANDS.move_cursor(i, code.indexOf('console'))
+  }),
+
 ]