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//@ 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();
}
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