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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /compiler/rustc_error_codes/src/error_codes/E0593.md | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compiler/rustc_error_codes/src/error_codes/E0593.md')
-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0593.md | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0593.md b/compiler/rustc_error_codes/src/error_codes/E0593.md new file mode 100644 index 000000000..1902d73f4 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0593.md @@ -0,0 +1,24 @@ +You tried to supply an `Fn`-based type with an incorrect number of arguments +than what was expected. + +Erroneous code example: + +```compile_fail,E0593 +fn foo<F: Fn()>(x: F) { } + +fn main() { + // [E0593] closure takes 1 argument but 0 arguments are required + 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! +} +``` |