From 2d610165ea9c0b2a66a81779eab36272bf0d7eb9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emil=20Gardstr=C3=B6m?= <emil.gardstrom@gmail.com>
Date: Fri, 28 Apr 2017 16:22:49 +0200
Subject: [PATCH] Implemented a `show_type` function for nightly playbot.

This change also defaults `#![feature(core_intrinsics)]` on --nightly
---
 src/bin/playbot.rs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/bin/playbot.rs b/src/bin/playbot.rs
index cff8579..c77b315 100644
--- a/src/bin/playbot.rs
+++ b/src/bin/playbot.rs
@@ -119,6 +119,22 @@ impl Playbot {
 
         let code = if self.conn.current_nickname().contains("mini") {
             String::from(code)
+        } else if channel == ReleaseChannel::Nightly {
+            format!(r#"
+#![feature(core_intrinsics)]
+#![allow(dead_code, unused_variables)]
+
+static VERSION: &'static str = "{version}";
+
+fn show<T: std::fmt::Debug>(e: T) {{ println!("{{:?}}", e) }}
+fn show_type<T>(_:T) -> &'static str {{ unsafe {{ std::intrinsics::type_name::<T>() }}}}
+
+fn main() {{
+    show({{
+        {code}
+    }});
+}}
+"#, version = self.rust_versions[channel as usize], code = code)
         } else {
             format!(r#"
 #![allow(dead_code, unused_variables)]