[regression] Don't validate file.comments in @babel/types (#11752)

Co-authored-by: Huáng Jùnliàng <jlhwung@gmail.com>
babel · Jun 29, 2020 · 5743ad3 · 5743ad3
1 parent 1dd94e8
commit 5743ad3
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diff --git a/packages/babel-types/src/definitions/core.js b/packages/babel-types/src/definitions/core.js
@@ -280,7 +280,11 @@ defineType("File", {
       validate: assertNodeType("Program"),
     },
     comments: {
-      validate: assertEach(assertNodeType("Comment")),
+      validate: !process.env.BABEL_TYPES_8_BREAKING
+        ? Object.assign(() => {}, {
+            each: { oneOfNodeTypes: ["CommentBlock", "CommentLine"] },
+          })
+        : assertEach(assertNodeType("CommentBlock", "CommentLine")),
       optional: true,
     },
     tokens: {

diff --git a/packages/babel-types/test/regressions.js b/packages/babel-types/test/regressions.js
@@ -0,0 +1,9 @@
+import * as t from "../lib";
+
+describe("regressions", () => {
+  it("jest .toMatchInlineSnapshot used 'Line' for comments", () => {
+    expect(() => {
+      t.file(t.program([]), [{ type: "Line" }]);
+    }).not.toThrow();
+  });
+});