49 lines
1.6 KiB
Rust
49 lines
1.6 KiB
Rust
// revisions:rpass1 rpass2
|
|
// compile-flags: -Z query-dep-graph
|
|
// aux-build:cached_hygiene.rs
|
|
|
|
// This tests the following scenario
|
|
// 1. A foreign crate is compiled with incremental compilation.
|
|
// This causes hygiene information to be saved to the incr cache.
|
|
// 2. One function is the foreign crate is modified. This causes the
|
|
// optimized mir for an unmodified function to be loaded from the
|
|
// incremental cache and written out to the crate metadata.
|
|
// 3. In the process of loading and writing out this function's MIR,
|
|
// we load hygiene information from the incremental cache and
|
|
// write it to our metadata.
|
|
// 4. This hygiene information is loaded by another crate (this file)
|
|
|
|
// Previously, this situation would cause hygiene identifiers
|
|
// (SyntaxContexts and ExpnIds) to get corrupted when we tried to
|
|
// serialize the hygiene information loaded from the incr cache into
|
|
// the metadata. Specifically, we were not resetting `orig_id`
|
|
// for an `EpxnData` generate in the current crate, which would cause
|
|
// us to serialize the `ExpnId` pointing to a garbage location in
|
|
// the metadata.
|
|
|
|
#![feature(rustc_attrs)]
|
|
|
|
#![rustc_partition_reused(module="load_cached_hygiene-call_unchanged_function", cfg="rpass2")]
|
|
#![rustc_partition_codegened(module="load_cached_hygiene-call_changed_function", cfg="rpass2")]
|
|
|
|
|
|
extern crate cached_hygiene;
|
|
|
|
pub mod call_unchanged_function {
|
|
|
|
pub fn unchanged() {
|
|
cached_hygiene::unchanged_fn();
|
|
}
|
|
}
|
|
|
|
pub mod call_changed_function {
|
|
pub fn changed() {
|
|
cached_hygiene::changed_fn();
|
|
}
|
|
}
|
|
|
|
pub fn main() {
|
|
call_unchanged_function::unchanged();
|
|
call_changed_function::changed();
|
|
}
|