diff options
Diffstat (limited to 'src/test/incremental/change_symbol_export_status.rs')
-rw-r--r-- | src/test/incremental/change_symbol_export_status.rs | 41 |
1 files changed, 41 insertions, 0 deletions
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 000000000..dd3dce4e7 --- /dev/null +++ b/src/test/incremental/change_symbol_export_status.rs @@ -0,0 +1,41 @@ +// revisions: rpass1 rpass2 rpass3 rpass4 +// compile-flags: -Zquery-dep-graph +// [rpass1]compile-flags: -Zincremental-ignore-spans +// [rpass2]compile-flags: -Zincremental-ignore-spans +// [rpass3]compile-flags: -Zincremental-relative-spans +// [rpass4]compile-flags: -Zincremental-relative-spans + +#![feature(rustc_attrs)] +#![rustc_partition_reused(module = "change_symbol_export_status-mod1", cfg = "rpass2")] +#![rustc_partition_reused(module = "change_symbol_export_status-mod2", cfg = "rpass2")] +#![rustc_partition_reused(module = "change_symbol_export_status-mod1", cfg = "rpass4")] +#![rustc_partition_reused(module = "change_symbol_export_status-mod2", cfg = "rpass4")] + +// 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(any(rpass1,rpass3))] +pub mod mod1 { + #[no_mangle] + pub fn foo() {} +} + +#[cfg(any(rpass2,rpass4))] +mod mod1 { + #[no_mangle] + pub fn foo() {} +} + +pub mod mod2 { + #[no_mangle] + pub fn bar() {} +} + +fn main() { + mod1::foo(); +} |