Disallow usage of invalid keyword after export abstract statement in Typescript (#9336)

2019-01-19 13:48:05 -08:00
parent 4ce37b7aca
commit a2e6d8e968
3 changed files with 12 additions and 1 deletions
--- a/packages/babel-parser/src/plugins/typescript.js
+++ b/packages/babel-parser/src/plugins/typescript.js
@@ -1270,7 +1270,12 @@ export default (superClass: Class<Parser>): Class<Parser> =>
          if (this.tsCheckLineTerminatorAndMatch(tt._class, next)) {
            const cls: N.ClassDeclaration = node;
            cls.abstract = true;
-            if (next) this.next();
+            if (next) {
+              this.next();
+              if (!this.match(tt._class)) {
+                this.unexpected(null, tt._class);
+              }
+            }
            return this.parseClass(
              cls,
              /* isStatement */ true,