fix: disallow expression after binding identifier of (#11355)

2020-04-21 15:12:23 -04:00
parent d18d465cf3
commit fba64d439d
11 changed files with 174 additions and 1 deletions
--- a/packages/babel-parser/src/plugins/flow.js
+++ b/packages/babel-parser/src/plugins/flow.js
@@ -3456,4 +3456,18 @@ export default (superClass: Class<Parser>): Class<Parser> =>
      });
      return this.finishNode(node, "EnumDeclaration");
    }
+
+    updateContext(prevType: TokenType): void {
+      if (
+        this.match(tt.name) &&
+        this.state.value === "of" &&
+        prevType === tt.name &&
+        this.input.slice(this.state.lastTokStart, this.state.lastTokEnd) ===
+          "interface"
+      ) {
+        this.state.exprAllowed = false;
+      } else {
+        super.updateContext(prevType);
+      }
+    }
  };