Module rustc_incremental::assert_module_sources [] [src]

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

This pass is only used for UNIT TESTS related to incremental compilation. It tests whether a particular .o file will be re-used from a previous compilation or whether it must be regenerated.

The user adds annotations to the crate of the following form:

#![rustc_partition_reused(module="spike", cfg="rpass2")]
#![rustc_partition_translated(module="spike-x", cfg="rpass2")]

The first indicates (in the cfg rpass2) that spike.o will be reused, the second that spike-x.o will be recreated. If these annotations are inaccurate, errors are reported.

The reason that we use cfg=... and not #[cfg_attr] is so that the HIR doesn't change as a result of the annotations, which might perturb the reuse results.

Functions

assert_module_sources [
Experimental
]