From ff6c3792bbb53f4eb4b28174c595dcd4812e8d48 Mon Sep 17 00:00:00 2001
From: Sosuke Suzuki <aosukeke@gmail.com>
Date: Fri, 30 Oct 2020 00:21:52 +0900
Subject: [PATCH] Make assertions optional and update AST spec (#12280)

---
 packages/babel-parser/ast/spec.md            | 1 +
 packages/babel-types/src/definitions/core.js | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/packages/babel-parser/ast/spec.md b/packages/babel-parser/ast/spec.md
index e86d9098bd..0db4e64dea 100644
--- a/packages/babel-parser/ast/spec.md
+++ b/packages/babel-parser/ast/spec.md
@@ -1412,6 +1412,7 @@ An export default declaration, e.g., `export default function () {};` or `export
 interface ExportAllDeclaration <: ModuleDeclaration {
   type: "ExportAllDeclaration";
   source: StringLiteral;
+  assertions?: [ ImportAttribute ];
 }
 ```
 
diff --git a/packages/babel-types/src/definitions/core.js b/packages/babel-types/src/definitions/core.js
index 7484c3f1f1..13deeab880 100644
--- a/packages/babel-types/src/definitions/core.js
+++ b/packages/babel-types/src/definitions/core.js
@@ -1402,6 +1402,7 @@ defineType("ExportAllDeclaration", {
       validate: assertNodeType("StringLiteral"),
     },
     assertions: {
+      optional: true,
       validate: chain(
         assertValueType("array"),
         assertNodeType("ImportAttribute"),
@@ -1471,6 +1472,7 @@ defineType("ExportNamedDeclaration", {
       ),
     },
     assertions: {
+      optional: true,
       validate: chain(
         assertValueType("array"),
         assertNodeType("ImportAttribute"),
@@ -1572,6 +1574,7 @@ defineType("ImportDeclaration", {
   aliases: ["Statement", "Declaration", "ModuleDeclaration"],
   fields: {
     assertions: {
+      optional: true,
       validate: chain(
         assertValueType("array"),
         assertNodeType("ImportAttribute"),