// check-pass // compile-flags: -Z span-debug --error-format human // aux-build:test-macros.rs // Regression test for issue #75930 // Tests that we cfg-strip all targets before invoking // a derive macro // We need '--error-format human' to stop compiletest from // trying to interpret proc-macro output as JSON messages // (a pretty-printed struct may cause a line to start with '{' ) // FIXME: We currently lose spans here (see issue #43081) #![no_std] // Don't load unnecessary hygiene information from std extern crate std; #[macro_use] extern crate test_macros; #[print_helper(a)] //~ WARN derive helper attribute is used before it is introduced //~| WARN this was previously accepted #[cfg_attr(not(FALSE), allow(dead_code))] #[print_attr] #[derive(Print)] #[print_helper(b)] struct Foo<#[cfg(FALSE)] A, B> { #[cfg(FALSE)] first: String, #[cfg_attr(FALSE, deny(warnings))] second: bool, third: [u8; { #[cfg(FALSE)] struct Bar; #[cfg(not(FALSE))] struct Inner; #[cfg(FALSE)] let a = 25; match true { #[cfg(FALSE)] true => {}, #[cfg_attr(not(FALSE), allow(warnings))] false => {}, _ => {} }; #[print_helper(should_be_removed)] fn removed_fn() { #![cfg(FALSE)] } #[print_helper(c)] #[cfg(not(FALSE))] fn kept_fn() { #![cfg(not(FALSE))] let my_val = true; } enum TupleEnum { Foo( #[cfg(FALSE)] u8, #[cfg(FALSE)] bool, #[cfg(not(FALSE))] i32, #[cfg(FALSE)] String, u8 ) } struct TupleStruct( #[cfg(FALSE)] String, #[cfg(not(FALSE))] i32, #[cfg(FALSE)] bool, u8 ); fn plain_removed_fn() { #![cfg_attr(not(FALSE), cfg(FALSE))] } 0 }], #[print_helper(d)] fourth: B } fn main() {}