diff --git a/src/test/incremental/change_symbol_export_status.rs b/src/test/incremental/change_symbol_export_status.rs new file mode 100644 index 000000000000..71f46c641bf8 --- /dev/null +++ b/src/test/incremental/change_symbol_export_status.rs @@ -0,0 +1,42 @@ +// Copyright 2016 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// revisions: rpass1 rpass2 + +#![feature(rustc_attrs)] +#![allow(private_no_mangle_fns)] + +#![rustc_partition_reused(module="change_symbol_export_status", cfg="rpass2")] +#![rustc_partition_translated(module="change_symbol_export_status-mod1", cfg="rpass2")] + + +// This test case makes sure that a change in symbol visibility is detected by +// our dependency tracking. We do this by changing a module's visibility to +// `private` in rpass2, causing the contained function to go from `default` to +// `hidden` visibility. +// The function is marked with #[no_mangle] so it is considered for exporting +// even from an executable. Plain Rust functions are only exported from Rust +// libraries, which our test infrastructure does not support. + +#[cfg(rpass1)] +pub mod mod1 { + #[no_mangle] + pub fn foo() {} +} + +#[cfg(rpass2)] +mod mod1 { + #[no_mangle] + pub fn foo() {} +} + +fn main() { + mod1::foo(); +}