From db29a1127c8221687eb4241a73111caa62a70b30 Mon Sep 17 00:00:00 2001
From: mwilliams <mwilliams@fb.com>
Date: Tue, 2 Jul 2013 07:27:37 -0700
Subject: [PATCH] Disable code coverage for systemlib.hhas

It has no line number information.
---
 hphp/runtime/vm/bytecode.cpp                          | 3 ++-
 hphp/test/slow/code_coverage/hhas_coverage.php        | 9 +++++++++
 hphp/test/slow/code_coverage/hhas_coverage.php.expect | 8 ++++++++
 3 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 hphp/test/slow/code_coverage/hhas_coverage.php
 create mode 100644 hphp/test/slow/code_coverage/hhas_coverage.php.expect

diff --git a/hphp/runtime/vm/bytecode.cpp b/hphp/runtime/vm/bytecode.cpp
index 0fb708003..c95fa46eb 100644
--- a/hphp/runtime/vm/bytecode.cpp
+++ b/hphp/runtime/vm/bytecode.cpp
@@ -7186,7 +7186,8 @@ void VMExecutionContext::recordCodeCoverage(PC pc) {
   Unit* unit = getFP()->m_func->unit();
   assert(unit != nullptr);
   if (unit == SystemLib::s_nativeFuncUnit ||
-      unit == SystemLib::s_nativeClassUnit) {
+      unit == SystemLib::s_nativeClassUnit ||
+      unit == SystemLib::s_hhas_unit) {
     return;
   }
   int line = unit->getLineNumber(pcOff());
diff --git a/hphp/test/slow/code_coverage/hhas_coverage.php b/hphp/test/slow/code_coverage/hhas_coverage.php
new file mode 100644
index 000000000..5fe592910
--- /dev/null
+++ b/hphp/test/slow/code_coverage/hhas_coverage.php
@@ -0,0 +1,9 @@
+<?php
+
+function test($a) {
+  fb_enable_code_coverage();
+  var_dump(array_map(null, $a));
+  fb_disable_code_coverage();
+}
+
+test(array(1,2,3));
diff --git a/hphp/test/slow/code_coverage/hhas_coverage.php.expect b/hphp/test/slow/code_coverage/hhas_coverage.php.expect
new file mode 100644
index 000000000..468e3cd42
--- /dev/null
+++ b/hphp/test/slow/code_coverage/hhas_coverage.php.expect
@@ -0,0 +1,8 @@
+array(3) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+}