lean4-htt

Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.

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Leonardo de Moura b1503f2c56 perf(library/init/data/array/basic): remove inefficient `mforeachAux` and add new `hmmap` and `hmap` The `mforeachAux` function was keeping two references to the array because it was implemented using `miterate a ⟨a, rfl⟩ ...` Thus, we would have to allocate a new array even if `a` was not shared. Another issue is that when invoking `x ← f i v`, the array would still have a reference to `v`, and consequently `RC(v) > 1`, and `f` would not be able to perform destructive updates to `v` or reuse its memory cell. Thus, I removed `mforeach` (we only used it to implement `hmap`: the homogeneous map), and implemented a new `hmap` which makes sure destructive updates can be performed modulo the issue with float `let` inwards I described in the previous commit. @kha I found the problem described in the previous commit when I was using `Array.hmap`. If we use `Array`s to implement `Syntax` as we discussed, then a `hmap` that does not prevent destructive updates from happening is a must-have. Otherwise, any benefit we get from using `Array`s instead of `List`s is gone.		2019-04-19 14:52:52 -07:00
.github	chore(.github/CONTRIBUTING): fix typos and URLs	2017-10-30 16:23:22 +01:00
bin	chore(bin/leanc.in): remove flags that do not exist on clang++ for OSX	2019-03-18 08:38:50 -07:00
doc	doc(doc/make/index): add instructions for invoking makefile manually	2019-03-25 14:57:57 -07:00
gen	feat(runtime): avoid extra `switch`	2019-02-23 17:35:21 -08:00
images	chore(CMakeLists.txt): move Lean logo to make sure we can test leanemacs without installing Lean	2015-01-31 17:38:49 -08:00
lean4-mode	feat(frontends/lean): add `partial` keyword	2019-03-26 16:09:55 -07:00
library	perf(library/init/data/array/basic): remove inefficient `mforeachAux` and add new `hmmap` and `hmap`	2019-04-19 14:52:52 -07:00
script	chore(library/constants.txt): remove dead variables	2019-03-22 13:26:48 -07:00
src	fix(tests/playground/parser/syntax): another issue with float `let` inwards	2019-04-19 14:52:52 -07:00
tests	chore(tests/playground): fix tests	2019-04-18 17:29:49 -07:00
.appveyor.yml	chore(.appveyor,.travis): disable leanpkg registry tests	2018-04-12 18:32:20 +02:00
.clang-format	feat(library/vm/process): add basic process support	2017-03-28 18:08:06 -07:00
.codecov.yml	fix(.codecov.yml): do not fail github ci if coverage drops by 0.01%	2017-06-25 10:35:02 +02:00
.gitattributes	chore(.gitattributes): use `union` merge strategy for doc/changes.md	2017-12-11 12:49:10 +01:00
.gitignore	feat(bin/leanc): add simple C++ compiler wrapper script	2019-03-18 16:11:30 +01:00
.travis.yml	chore(.travis.yml): trigger AppVeyor nightly build from Travis	2018-04-13 16:44:27 +02:00
LICENSE
README.md	chore(README): point CI links to lean4 branch	2018-04-12 13:50:42 +02:00