Support Flow this parameter annotations (#12234)

2021-02-21 11:44:27 -05:00
parent 407e8b5c7b
commit 16e9f1c8e5
149 changed files with 3010 additions and 83 deletions
--- a/packages/babel-generator/src/generators/flow.ts
+++ b/packages/babel-generator/src/generators/flow.ts
@@ -289,6 +289,18 @@ export function FunctionTypeAnnotation(
 ) {
  this.print(node.typeParameters, node);
  this.token("(");
+
+  if (node.this) {
+    this.word("this");
+    this.token(":");
+    this.space();
+    this.print(node.this.typeAnnotation, node);
+    if (node.params.length || node.rest) {
+      this.token(",");
+      this.space();
+    }
+  }
+
  this.printList(node.params, node);

  if (node.rest) {