From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/consts/const-block-item-macro-codegen.rs | 40 +++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tests/ui/consts/const-block-item-macro-codegen.rs (limited to 'tests/ui/consts/const-block-item-macro-codegen.rs') diff --git a/tests/ui/consts/const-block-item-macro-codegen.rs b/tests/ui/consts/const-block-item-macro-codegen.rs new file mode 100644 index 000000000..7ad883686 --- /dev/null +++ b/tests/ui/consts/const-block-item-macro-codegen.rs @@ -0,0 +1,40 @@ +// run-pass +#![allow(dead_code)] +// General test that function items in static blocks +// can be generated with a macro. + + +struct MyType { + desc: &'static str, + data: usize, + code: fn(usize, usize) -> usize +} + +impl MyType { + fn eval(&self, a: usize) -> usize { + (self.code)(self.data, a) + } +} + +macro_rules! codegen { + ($e:expr, $v:expr) => { + { + fn generated(a: usize, b: usize) -> usize { + a - ($e * b) + } + MyType { + desc: "test", + data: $v, + code: generated + } + } + } +} + +static GENERATED_CODE_1: MyType = codegen!(2, 100); +static GENERATED_CODE_2: MyType = codegen!(5, 1000); + +pub fn main() { + assert_eq!(GENERATED_CODE_1.eval(10), 80); + assert_eq!(GENERATED_CODE_2.eval(100), 500); +} -- cgit v1.2.3