e341d603fe
This commit deletes the internal liblog in favor of the implementation that
lives on crates.io. Similarly it's also setting a convention for adding crates
to the compiler. The main restriction right now is that we want compiler
implementation details to be unreachable from normal Rust code (e.g. requires a
feature), and by default everything in the sysroot is reachable via `extern
crate`.
The proposal here is to require that crates pulled in have these lines in their
`src/lib.rs`:
#![cfg_attr(rustbuild, feature(staged_api, rustc_private))]
#![cfg_attr(rustbuild, unstable(feature = "rustc_private", issue = "27812"))]
This'll mean that by default they're not using these attributes but when
compiled as part of the compiler they do a few things:
* Mark themselves as entirely unstable via the `staged_api` feature and the
`#![unstable]` attribute.
* Allow usage of other unstable crates via `feature(rustc_private)` which is
required if the crate relies on any other crates to compile (other than std).
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|---|---|---|
| .. | ||
| deriving | ||
| asm.rs | ||
| Cargo.toml | ||
| cfg.rs | ||
| concat.rs | ||
| concat_idents.rs | ||
| env.rs | ||
| format.rs | ||
| format_foreign.rs | ||
| lib.rs | ||
| log_syntax.rs | ||
| proc_macro_impl.rs | ||
| proc_macro_registrar.rs | ||
| trace_macros.rs | ||