From 56c494a1487e7fdea07c641e5a182cffba1d15c0 Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.gomez@gmail.com>
Date: Tue, 19 May 2020 13:20:33 +0200
Subject: [PATCH] Clean up E0593 explanation
---
src/librustc_error_codes/error_codes/E0593.md | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/librustc_error_codes/error_codes/E0593.md b/src/librustc_error_codes/error_codes/E0593.md
index b32923a9e5ff9..1902d73f4d00c 100644
--- a/src/librustc_error_codes/error_codes/E0593.md
+++ b/src/librustc_error_codes/error_codes/E0593.md
@@ -11,3 +11,14 @@ fn main() {
foo(|y| { });
}
```
+
+You have to provide the same number of arguments as expected by the `Fn`-based
+type. So to fix the previous example, we need to remove the `y` argument:
+
+```
+fn foo<F: Fn()>(x: F) { }
+
+fn main() {
+ foo(|| { }); // ok!
+}
+```