From 1e961dba7cc4f7f157c2b957bbe23e63408f4536 Mon Sep 17 00:00:00 2001
From: Fred Emmott <fe@fb.com>
Date: Fri, 25 Aug 2017 10:59:28 -0700
Subject: [PATCH] Stub out PHPism and FBLogger

Summary: Closes https://github.com/hhvm/hsl/pull/26

Reviewed By: savil

Differential Revision: D5707518

Pulled By: savil

fbshipit-source-id: 3009d2ad40581d9029be7bdfdd61eaaffc8fdb3b
---
 src/keyset/transform.php |  6 +++++-
 src/private.php          | 19 +++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/keyset/transform.php b/src/keyset/transform.php
index 840bd65a..0a9c0337 100644
--- a/src/keyset/transform.php
+++ b/src/keyset/transform.php
@@ -11,6 +11,10 @@
 
 namespace HH\Lib\Keyset;
 
+// @oss-disable: use \PHPism_FIXME as PHPism_FIXME;
+use HH\Lib\_Private\StubPHPism_FIXME as PHPism_FIXME; // @oss-enable
+use function HH\Lib\_Private\universal_chainable_stub as FBLogger; // @oss-enable
+
 /**
  * Returns a vec containing the given Traversable split into chunks of the
  * given size.
@@ -78,7 +82,7 @@ function flatten<Tv as arraykey>(
 ): keyset<Tv> {
   $result = keyset[];
   foreach ($traversables as $traversable) {
-    if (!\PHPism_FIXME::isForeachable($traversable)) {
+    if (!PHPism_FIXME::isForeachable($traversable)) {
       FBLogger('phpism_fixme.invalid_foreach_arg')
         ->blameToPreviousFrame()
         ->mustfix('Attempting to foreach over a non-foreachable type');
diff --git a/src/private.php b/src/private.php
index bc1e0853..5ab11636 100644
--- a/src/private.php
+++ b/src/private.php
@@ -31,5 +31,24 @@ function validate_offset(
   return $offset;
 }
 
+// Stub implementations of FB internals used to ease migrations
+
+/* HH_IGNORE_ERROR[5520] FIXME violates FB naming conventions */
+final class StubPHPism_FIXME {
+  public static function isForeachable<T>(Traversable<T> $_): bool {
+    return true;
+  }
+}
+
+final class UniversalChainableStub {
+  public function __call(mixed $_, mixed $_): this {
+    return $this;
+  }
+}
+
+function universal_chainable_stub(mixed ...$_): UniversalChainableStub {
+  return new UniversalChainableStub();
+}
+
 const string ALPHABET_ALPHANUMERIC =
   '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';