2020-02-11 15:39:02 -06:00
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//! This crates defines the type inference engine.
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2020-01-06 13:13:24 -06:00
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//!
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//! - **Type inference.** The type inference code can be found in the `infer` module;
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//! this code handles low-level equality and subtyping operations. The
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//! type check pass in the compiler is found in the `librustc_typeck` crate.
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//!
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2020-03-05 15:07:42 -06:00
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//! For more information about how rustc works, see the [rustc dev guide].
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2020-01-06 13:13:24 -06:00
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//!
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2020-03-09 16:33:04 -05:00
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//! [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/
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2020-01-06 13:13:24 -06:00
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//!
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//! # Note
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//!
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//! This API is completely unstable and subject to change.
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2020-09-23 14:51:56 -05:00
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#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
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2020-01-06 13:13:24 -06:00
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#![feature(bool_to_option)]
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#![feature(box_patterns)]
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#![feature(box_syntax)]
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rewrite leak check to be based on universes
In the new leak check, instead of getting a list of placeholders to
track, we look for any placeholder that is part of a universe which
was created during the snapshot.
We are looking for the following error patterns:
* P1: P2, where P1 != P2
* P1: R, where R is in some universe that cannot name P1
This new leak check is more precise than before, in that it accepts
this patterns:
* R: P1, even if R cannot name P1, because R = 'static is a valid
sol'n
* R: P1, R: P2, as above
Note that this leak check, when running during subtyping, is less
efficient than before in some sense because it is going to check and
re-check all the universes created since the snapshot. We're going to
move when the leak check runs to try and correct that.
2020-05-18 20:09:40 -05:00
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#![feature(const_fn)]
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#![feature(const_panic)]
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2020-05-12 22:09:55 -05:00
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#![feature(extend_one)]
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2020-01-06 13:13:24 -06:00
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#![feature(never_type)]
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2020-04-16 19:38:52 -05:00
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#![feature(or_patterns)]
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2020-01-06 13:13:24 -06:00
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#![feature(in_band_lifetimes)]
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2020-10-21 07:24:35 -05:00
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#![feature(control_flow_enum)]
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2020-02-11 15:39:02 -06:00
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#![recursion_limit = "512"] // For rustdoc
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2020-01-06 13:13:24 -06:00
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#[macro_use]
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extern crate rustc_macros;
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2020-01-08 03:18:48 -06:00
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#[cfg(target_arch = "x86_64")]
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2020-01-06 13:13:24 -06:00
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#[macro_use]
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extern crate rustc_data_structures;
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#[macro_use]
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2020-08-14 01:05:01 -05:00
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extern crate tracing;
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2020-01-06 13:13:24 -06:00
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#[macro_use]
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2020-03-29 08:24:45 -05:00
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extern crate rustc_middle;
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2020-01-06 13:13:24 -06:00
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pub mod infer;
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pub mod traits;
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