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internal: improve compile times a bit

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before after for cargo llvm-lines -q --lib --release -p ide_ssr | head -n 24

  Lines          Copies        Function name
  -----          ------        -------------
  297146 (100%)  12748 (100%)  (TOTAL)
    5970 (2.0%)     47 (0.4%)  core::iter::traits::iterator::Iterator::try_fold
    4750 (1.6%)     27 (0.2%)  hashbrown::raw::RawTable<T,A>::resize
    4080 (1.4%)     30 (0.2%)  alloc::raw_vec::RawVec<T,A>::grow_amortized
    3933 (1.3%)     69 (0.5%)  alloc::raw_vec::RawVec<T,A>::current_memory
    3668 (1.2%)     89 (0.7%)  <core::result::Result<T,E> as core::ops::try_trait::Try>::branch
    3500 (1.2%)     50 (0.4%)  hashbrown::raw::RawTable<T,A>::drop_elements
    3436 (1.2%)     33 (0.3%)  hashbrown::raw::RawTable<T,A>::find
    3415 (1.1%)     17 (0.1%)  hashbrown::raw::RawTable<T,A>::rehash_in_place
    3400 (1.1%)     50 (0.4%)  <hashbrown::raw::RawIterRange<T> as core::iter::traits::iterator::Iterator>::next
    2840 (1.0%)     20 (0.2%)  alloc::raw_vec::RawVec<T,A>::allocate_in
    2700 (0.9%)     30 (0.2%)  core::alloc::layout::Layout::array
    2666 (0.9%)     86 (0.7%)  core::ptr::metadata::from_raw_parts_mut
    2495 (0.8%)     50 (0.4%)  core::option::Option<T>::map
    2354 (0.8%)     38 (0.3%)  alloc::alloc::box_free
    2302 (0.8%)      7 (0.1%)  ide_ssr::parsing::RuleBuilder::try_add
    2146 (0.7%)     45 (0.4%)  core::mem::replace
    2070 (0.7%)     69 (0.5%)  <alloc::raw_vec::RawVec<T,A> as core::ops::drop::Drop>::drop
    1979 (0.7%)     16 (0.1%)  hashbrown::map::HashMap<K,V,S,A>::insert
    1926 (0.6%)     18 (0.1%)  <core::iter::adapters::zip::Zip<A,B> as core::iter::adapters::zip::ZipImpl<A,B>>::next
    1922 (0.6%)     62 (0.5%)  core::fmt::ArgumentV1::new
    1885 (0.6%)     13 (0.1%)  alloc::raw_vec::RawVec<T,A>::shrink

  Lines          Copies        Function name
  -----          ------        -------------
  261717 (100%)  11666 (100%)  (TOTAL)
    5239 (2.0%)     42 (0.4%)  core::iter::traits::iterator::Iterator::try_fold
    4750 (1.8%)     27 (0.2%)  hashbrown::raw::RawTable<T,A>::resize
    3933 (1.5%)     69 (0.6%)  alloc::raw_vec::RawVec<T,A>::current_memory
    3536 (1.4%)     26 (0.2%)  alloc::raw_vec::RawVec<T,A>::grow_amortized
    3500 (1.3%)     50 (0.4%)  hashbrown::raw::RawTable<T,A>::drop_elements
    3400 (1.3%)     50 (0.4%)  <hashbrown::raw::RawIterRange<T> as core::iter::traits::iterator::Iterator>::next
    3124 (1.2%)     30 (0.3%)  hashbrown::raw::RawTable<T,A>::find
    2812 (1.1%)     14 (0.1%)  hashbrown::raw::RawTable<T,A>::rehash_in_place
    2604 (1.0%)     84 (0.7%)  core::ptr::metadata::from_raw_parts_mut
    2340 (0.9%)     26 (0.2%)  core::alloc::layout::Layout::array
    2302 (0.9%)      7 (0.1%)  ide_ssr::parsing::RuleBuilder::try_add
    2272 (0.9%)     16 (0.1%)  alloc::raw_vec::RawVec<T,A>::allocate_in
    2201 (0.8%)     35 (0.3%)  alloc::alloc::box_free
    2104 (0.8%)     44 (0.4%)  core::mem::replace
    2079 (0.8%)     42 (0.4%)  <core::result::Result<T,E> as core::ops::try_trait::Try>::branch
    2070 (0.8%)     69 (0.6%)  <alloc::raw_vec::RawVec<T,A> as core::ops::drop::Drop>::drop
    1926 (0.7%)     18 (0.2%)  <core::iter::adapters::zip::Zip<A,B> as core::iter::adapters::zip::ZipImpl<A,B>>::next
    1885 (0.7%)     13 (0.1%)  alloc::raw_vec::RawVec<T,A>::shrink
    1833 (0.7%)     13 (0.1%)  hashbrown::raw::RawTable<T,A>::shrink_to
    1771 (0.7%)     91 (0.8%)  core::ptr::read
    1701 (0.6%)     35 (0.3%)  core::option::Option<T>::map
This commit is contained in:
Aleksey Kladov
2021-08-29 18:49:16 +03:00
parent 35d98070d2
commit 76b60efbfb
2 changed files with 77 additions and 16 deletions
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6
crates/hir_ty/src/method_resolution.rs
View File

@@ -410,7 +410,7 @@ pub enum LookupMode {
// This would be nicer if it just returned an iterator, but that runs into
// lifetime problems, because we need to borrow temp `CrateImplDefs`.
// FIXME add a context type here?
pub fn iterate_method_candidates<T>(
pub fn iterate_method_candidates<T>(
ty: &Canonical<Ty>,
db: &dyn HirDatabase,
env: Arc<TraitEnvironment>,
@@ -422,7 +422,7 @@ pub fn iterate_method_candidates<T>(
mut callback: impl FnMut(&Ty, AssocItemId) -> Option<T>,
) -> Option<T> {
let mut slot = None;
iterate_method_candidates_impl(
iterate_method_candidates_dyn(
ty,
db,
env,
@@ -440,7 +440,7 @@ pub fn iterate_method_candidates<T>(
slot
}
fn iterate_method_candidates_impl(
pub fn iterate_method_candidates_dyn(
ty: &Canonical<Ty>,
db: &dyn HirDatabase,
env: Arc<TraitEnvironment>,