NLL: improve inference with flow results, represent regions with bitsets, and more#46319

Merged

bors merged 30 commits intorust-lang:masterfrom

nikomatsakis:nll-master-to-rust-master-2

Dec 4, 2017

Commits on Dec 4, 2017

separate out the liveness constraints from the final value
nikomatsakis
committed
replace constant regions with a post-inference check
nikomatsakis
committed
borrow_check.rs: rustfmt
nikomatsakis
committed
inform constraint generation using maybe-init

Nashenas88
authored and
nikomatsakis
committed
region_infer: BitMatrix representation of region values

zackmdavis
authored and
nikomatsakis
committed
extract the `implied_bounds` code into a helper function
nikomatsakis
committed
move `free_regions_map` into `infer::outlives`
nikomatsakis
committed
make `resolve_regions_and_report_errors` take an `OutlivesEnv`
nikomatsakis
committed
make `no_late_bound_regions` a method on `Binder<T>`
nikomatsakis
committed
extract the code to create `OutlivesBounds` into its own module
nikomatsakis
committed
rename `implied_bounds` module to `bounds`
nikomatsakis
committed
break type-checking of aggregate-kind out into helper function
nikomatsakis
committed
rename `greater_than` to `reachable_from`
nikomatsakis
committed
promote region_infer into its own module
nikomatsakis
committed
extend TransitiveRelation with `parents` function
nikomatsakis
committed
constraint_generation: create liveness constraints more thoroughly
nikomatsakis
committed
MIR dump: restructure pretty to be more extensible by other code
nikomatsakis
committed
move `liberate_late_bound_regions` to a method on the tcx
nikomatsakis
committed
introduce `closure_env_ty` helper to compute ty of closure env arg
nikomatsakis
committed
rename "free region" to "universally quantified region"
nikomatsakis
committed
fix debruijn account in `for_each_free_region`
nikomatsakis
committed
document `closure_base_def_id`
nikomatsakis
committed
remove unused span from `eq_types` (and rustfmt slightly)
nikomatsakis
committed
type_check.rs: rustfmt
nikomatsakis
committed
free_region_map: Fix typo in comment: r_a <= r_b
nikomatsakis
committed
region_infer: Fix typo in comment
nikomatsakis
committed
outlives/env: Fix comment that lost surrounding context.
nikomatsakis
committed
transtive_relation: fix typo in comment for `parents`
nikomatsakis
committed
outlives/env: fix comment, say must and not should
nikomatsakis
committed
adopt `longer` and `shorter` rather than `fr` and `outlived_fr`
nikomatsakis
committed

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NLL: improve inference with flow results, represent regions with bitsets, and more#46319

Commits on Dec 4, 2017

separate out the liveness constraints from the final value

replace constant regions with a post-inference check

borrow_check.rs: rustfmt

inform constraint generation using maybe-init

region_infer: BitMatrix representation of region values

extract the `implied_bounds` code into a helper function

move `free_regions_map` into `infer::outlives`

make `resolve_regions_and_report_errors` take an `OutlivesEnv`

make `no_late_bound_regions` a method on `Binder<T>`

extract the code to create `OutlivesBounds` into its own module

rename `implied_bounds` module to `bounds`

break type-checking of aggregate-kind out into helper function

rename `greater_than` to `reachable_from`

promote region_infer into its own module

extend TransitiveRelation with `parents` function

constraint_generation: create liveness constraints more thoroughly

MIR dump: restructure pretty to be more extensible by other code

move `liberate_late_bound_regions` to a method on the tcx

introduce `closure_env_ty` helper to compute ty of closure env arg

rename "free region" to "universally quantified region"

fix debruijn account in `for_each_free_region`

document `closure_base_def_id`

remove unused span from `eq_types` (and rustfmt slightly)

type_check.rs: rustfmt

free_region_map: Fix typo in comment: r_a <= r_b

region_infer: Fix typo in comment

outlives/env: Fix comment that lost surrounding context.

transtive_relation: fix typo in comment for `parents`

outlives/env: fix comment, say must and not should

adopt `longer` and `shorter` rather than `fr` and `outlived_fr`