From 1485c168990b2dbb6e2858bc09af0254c1af9491 Mon Sep 17 00:00:00 2001 From: Donough Liu Date: Mon, 23 Dec 2019 21:05:02 +0800 Subject: Add long error code explanation message for E0627 --- src/librustc_error_codes/error_codes/E0627.md | 30 +++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 src/librustc_error_codes/error_codes/E0627.md (limited to 'src/librustc_error_codes/error_codes') diff --git a/src/librustc_error_codes/error_codes/E0627.md b/src/librustc_error_codes/error_codes/E0627.md new file mode 100644 index 00000000000..21358e1e567 --- /dev/null +++ b/src/librustc_error_codes/error_codes/E0627.md @@ -0,0 +1,30 @@ +A yield expression was used outside of the generator literal. + +Erroneous code example: + +```compile_fail,E0627 +#![feature(generators, generator_trait)] + +fn fake_generator() -> &'static str { + yield 1; + return "foo" +} + +fn main() { + let mut generator = fake_generator; +} +``` + +The error occurs because keyword `yield` can only be used inside the generator +literal. This can be fixed by constructing the generator correctly. + +``` +#![feature(generators, generator_trait)] + +fn main() { + let mut generator = || { + yield 1; + return "foo" + }; +} +``` -- cgit 1.4.1-3-g733a5