From 2b0878ec6de0c5c14932049cb3185ddb687d05bb Mon Sep 17 00:00:00 2001
From: Bob Nystrom <robert@stuffwithstuff.com>
Date: Sat, 21 May 2016 12:53:21 -0700
Subject: [PATCH] Platform.isWindows.

---
 doc/site/modules/os/platform.markdown | 4 ++++
 src/module/os.wren                    | 2 ++
 src/module/os.wren.inc                | 2 ++
 test/os/platform/is_windows.wren      | 4 ++++
 4 files changed, 12 insertions(+)
 create mode 100644 test/os/platform/is_windows.wren

diff --git a/doc/site/modules/os/platform.markdown b/doc/site/modules/os/platform.markdown
index f4b62b5e..d92a2334 100644
--- a/doc/site/modules/os/platform.markdown
+++ b/doc/site/modules/os/platform.markdown
@@ -24,3 +24,7 @@ If Wren was compiled for an unknown operating system, returns "Unknown".
 Returns `true` if the host operating system is known to support the POSIX
 standard. This is true for Linux and other Unices, as well as the various Apple
 operating systems.
+
+### **isWindows**
+
+Returns `true` if the host operating system is some flavor of Windows.
diff --git a/src/module/os.wren b/src/module/os.wren
index 4e73f066..0ff63b85 100644
--- a/src/module/os.wren
+++ b/src/module/os.wren
@@ -1,6 +1,8 @@
 class Platform {
   foreign static isPosix
   foreign static name
+
+  static isWindows { name == "Windows" }
 }
 
 class Process {
diff --git a/src/module/os.wren.inc b/src/module/os.wren.inc
index 96cc3bf6..a1bf3485 100644
--- a/src/module/os.wren.inc
+++ b/src/module/os.wren.inc
@@ -3,6 +3,8 @@ static const char* osModuleSource =
 "class Platform {\n"
 "  foreign static isPosix\n"
 "  foreign static name\n"
+"\n"
+"  static isWindows { name == \"Windows\" }\n"
 "}\n"
 "\n"
 "class Process {\n"
diff --git a/test/os/platform/is_windows.wren b/test/os/platform/is_windows.wren
new file mode 100644
index 00000000..f9016f8b
--- /dev/null
+++ b/test/os/platform/is_windows.wren
@@ -0,0 +1,4 @@
+import "os" for Platform
+
+// It's just a less stringly-typed API for checking the name.
+System.print(Platform.isWindows == (Platform.name == "Windows")) // expect: true