Support TypeScript mapped type 'as' clauses (#12129)

2020-10-14 13:16:22 -05:00
parent 3fd963fdc8
commit 6830c90ac9
11 changed files with 358 additions and 2 deletions
--- a/packages/babel-types/src/definitions/typescript.js
+++ b/packages/babel-types/src/definitions/typescript.js
@@ -306,12 +306,13 @@ defineType("TSIndexedAccessType", {

 defineType("TSMappedType", {
  aliases: ["TSType"],
-  visitor: ["typeParameter", "typeAnnotation"],
+  visitor: ["typeParameter", "typeAnnotation", "nameType"],
  fields: {
    readonly: validateOptional(bool),
    typeParameter: validateType("TSTypeParameter"),
    optional: validateOptional(bool),
    typeAnnotation: validateOptionalType("TSType"),
+    nameType: validateOptionalType("TSType"),
  },
 });