From 62a73c0afeaa4b5e4ddd9b2cac1c7abf9ca33e9f Mon Sep 17 00:00:00 2001
From: Nick Hamann <nick@wabbo.org>
Date: Thu, 16 Apr 2015 00:47:31 -0500
Subject: [PATCH] Add long diagnostics for E0015

---
 src/librustc/diagnostics.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/librustc/diagnostics.rs b/src/librustc/diagnostics.rs
index fcad71154aaaf..7c73d6b95fc98 100644
--- a/src/librustc/diagnostics.rs
+++ b/src/librustc/diagnostics.rs
@@ -112,6 +112,13 @@ reference when using guards or refactor the entire expression, perhaps by
 putting the condition inside the body of the arm.
 "##,
 
+E0015: r##"
+The only function calls currently allowed in static or constant expressions are
+enum variant constructors or struct constructors (for unit or tuple structs).
+This is because, at present, Rust does not support compile-time function
+execution.
+"##,
+
 E0020: r##"
 This error indicates that an attempt was made to divide by zero (or take the
 remainder of a zero divisor) in a static or constant expression.
@@ -243,7 +250,6 @@ register_diagnostics! {
     E0012,
     E0013,
     E0014,
-    E0015,
     E0016,
     E0017,
     E0018,