From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- .../rustc_error_codes/src/error_codes/E0574.md | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 compiler/rustc_error_codes/src/error_codes/E0574.md (limited to 'compiler/rustc_error_codes/src/error_codes/E0574.md') diff --git a/compiler/rustc_error_codes/src/error_codes/E0574.md b/compiler/rustc_error_codes/src/error_codes/E0574.md new file mode 100644 index 000000000..4881f61d0 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0574.md @@ -0,0 +1,47 @@ +Something other than a struct, variant or union has been used when one was +expected. + +Erroneous code example: + +```compile_fail,E0574 +mod mordor {} + +let sauron = mordor { x: () }; // error! + +enum Jak { + Daxter { i: isize }, +} + +let eco = Jak::Daxter { i: 1 }; +match eco { + Jak { i } => {} // error! +} +``` + +In all these errors, a type was expected. For example, in the first error, +we tried to instantiate the `mordor` module, which is impossible. If you want +to instantiate a type inside a module, you can do it as follow: + +``` +mod mordor { + pub struct TheRing { + pub x: usize, + } +} + +let sauron = mordor::TheRing { x: 1 }; // ok! +``` + +In the second error, we tried to bind the `Jak` enum directly, which is not +possible: you can only bind one of its variants. To do so: + +``` +enum Jak { + Daxter { i: isize }, +} + +let eco = Jak::Daxter { i: 1 }; +match eco { + Jak::Daxter { i } => {} // ok! +} +``` -- cgit v1.2.3