From a523f60209fbc1b934bae0e56b96163ce1167723 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Mon, 20 Jul 2015 00:20:40 +0100
Subject: [PATCH] output type annotations of type instantiation parameters -
 fixes #2036

---
 packages/babel/src/generation/generators/flow.js           | 7 ++++++-
 .../fixtures/generation/flow/type-annotations/actual.js    | 1 +
 .../fixtures/generation/flow/type-annotations/expected.js  | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/packages/babel/src/generation/generators/flow.js b/packages/babel/src/generation/generators/flow.js
index 5c061ce9a6..382105102b 100644
--- a/packages/babel/src/generation/generators/flow.js
+++ b/packages/babel/src/generation/generators/flow.js
@@ -252,7 +252,12 @@ export function TypeAnnotation(node, print) {
 
 export function TypeParameterInstantiation(node, print) {
   this.push("<");
-  print.join(node.params, { separator: ", " });
+  print.join(node.params, {
+    separator: ", ",
+    iterator(node) {
+      print.plain(node.typeAnnotation);
+    }
+  });
   this.push(">");
 }
 
diff --git a/packages/babel/test/fixtures/generation/flow/type-annotations/actual.js b/packages/babel/test/fixtures/generation/flow/type-annotations/actual.js
index 8faee26e1d..ec99a435d4 100644
--- a/packages/babel/test/fixtures/generation/flow/type-annotations/actual.js
+++ b/packages/babel/test/fixtures/generation/flow/type-annotations/actual.js
@@ -16,6 +16,7 @@ function foo():(_?:bool) => number{}
 function foo(): {} {}
 function foo<T>() {}
 function foo<T,S>() {}
+function foo<T: F>() {}
 a = function<T,S>() {};
 a = { set fooProp(value: number) {} };
 a = { set fooProp(value: number): void {} };
diff --git a/packages/babel/test/fixtures/generation/flow/type-annotations/expected.js b/packages/babel/test/fixtures/generation/flow/type-annotations/expected.js
index ffd122ae4d..bfbd4a805f 100644
--- a/packages/babel/test/fixtures/generation/flow/type-annotations/expected.js
+++ b/packages/babel/test/fixtures/generation/flow/type-annotations/expected.js
@@ -16,6 +16,7 @@ function foo(): (_?: bool) => number {}
 function foo(): {} {}
 function foo<T>() {}
 function foo<T, S>() {}
+function foo<T: F>() {}
 a = function <T, S>() {};
 a = { set fooProp(value: number) {} };
 a = { set fooProp(value: number): void {} };