40ef1d3223
Instead of clearing out the cache entirely, we store the intermediate evaluation result into the cache entry. This accomplishes several things: * We avoid the performance hit associated with re-evaluating the sub-obligations * We avoid causing issues with incremental compilation, since the final evaluation result is always the same * We avoid affecting other uses of the same `InferCtxt` which might care about 'side effects' from processing the sub-obligations (e,g. region constraints). Only code that is specifically aware of the new 'complete' code is affected
41 lines
1.1 KiB
Rust
41 lines
1.1 KiB
Rust
//! This crates defines the trait resolution method.
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//!
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//! - **Traits.** Trait resolution is implemented in the `traits` module.
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//!
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//! For more information about how rustc works, see the [rustc-dev-guide].
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//!
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//! [rustc-dev-guide]: https://rustc-dev-guide.rust-lang.org/
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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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#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
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#![feature(bool_to_option)]
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#![feature(box_patterns)]
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#![feature(drain_filter)]
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#![feature(derive_default_enum)]
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#![feature(hash_drain_filter)]
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#![feature(label_break_value)]
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#![feature(let_else)]
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#![feature(never_type)]
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#![feature(crate_visibility_modifier)]
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#![feature(control_flow_enum)]
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#![recursion_limit = "512"] // For rustdoc
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#[macro_use]
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extern crate rustc_macros;
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#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
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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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extern crate tracing;
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#[macro_use]
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extern crate rustc_middle;
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#[macro_use]
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extern crate smallvec;
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pub mod autoderef;
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pub mod infer;
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pub mod opaque_types;
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pub mod traits;
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