@babel/preset-typescript: fix tsx assigment issue (#12599)

2021-01-10 23:21:39 +08:00
parent fce3e7124a
commit 6c9a481e83
5 changed files with 173 additions and 2 deletions
--- a/packages/babel-parser/src/plugins/typescript/index.js
+++ b/packages/babel-parser/src/plugins/typescript/index.js
@@ -2450,7 +2450,10 @@ export default (superClass: Class<Parser>): Class<Parser> =>
      let jsx;
      let typeCast;

-      if (this.match(tt.jsxTagStart)) {
+      if (
+        this.hasPlugin("jsx") &&
+        (this.match(tt.jsxTagStart) || this.isRelational("<"))
+      ) {
        // Prefer to parse JSX if possible. But may be an arrow fn.
        state = this.state.clone();