Commit graph

29801 commits

Author SHA1 Message Date
Leonardo de Moura
64d46272c2 fix: do not cache when smart unfolding is disabled 2022-07-04 05:48:35 -07:00
Leonardo de Moura
a1413b8fa1 feat: cache failures at isDefEq
We can compile Lean with these changes, but 3 tests are still broken.
This cache is used to address a performance issue reported at
  https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/deterministic.20timeout.20with.20structures/near/288180087
2022-07-03 21:52:01 -07:00
Leonardo de Moura
76245b39d1 chore: remove dead field
We have remove the old frontend a long time ago.
2022-07-03 15:38:48 -07:00
Leonardo de Moura
aae657571f doc: docstrings for src/Lean/Meta/Basic.lean 2022-07-03 15:32:15 -07:00
Leonardo de Moura
b78925d9bb chore: update stage0 2022-07-03 15:01:58 -07:00
Leonardo de Moura
757171db1f feat: add String.get! and s[i]! notation for String 2022-07-03 14:59:44 -07:00
Gabriel Ebner
07a3cd6980 chore: fix tests 2022-07-03 22:46:59 +02:00
Gabriel Ebner
141b110ff1 feat: add more typed syntax coercions 2022-07-03 22:46:59 +02:00
Gabriel Ebner
922ef23112 fix: do not ignore syntax coercions
Syntax coercions do not need to be the identity.  See for example
``Coe (TSyntax `ident) (TSyntax `declId)``.
2022-07-03 22:46:59 +02:00
Gabriel Ebner
ddf77a8c6d chore: style 2022-07-03 22:46:59 +02:00
Gabriel Ebner
bec0bbc351 fix: replace dangerous instance by CoeTail
In order to guarantee termination of type class synthesis when resolving
coercions, a good rule of thumb is that the instances should not
introduce metavariables (during TC synthesis).  For common coercion type
classes this means:

 - `Coe T S`, `CoeTail T S`: the variables of `T` must be a subset of those of `S`
 - `CoeHead T S`: the variables of `S` must be a subset of those of `T`

If these rules are not followed, we can easily get nontermination.  In
this case: `CoeTC Foo Syntax` is reduced to `CoeTC Foo (TSyntax ?m_1)`
using the (dangerous) `Coe (TSyntax k) Syntax` instance, to which we can
then apply the otherwise fine `Coe (TSyntax [k]) (TSyntax (k'::ks))`
coercion infinitely often.
2022-07-03 22:46:59 +02:00
Gabriel Ebner
3d5c5553d9 fix: add missing coercion instance for CoeHead+CoeTail 2022-07-03 22:46:59 +02:00
Leonardo de Moura
03ce7cb17c fix: dependent pattern matching bug
closes #1279
Originally reported at https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/case.20in.20dependent.20match.20not.20triggering.20.28.3F.29/near/288328239
2022-07-03 13:25:12 -07:00
Leonardo de Moura
68024b11a4 fix: simp_all bug when goal has duplicate hypotheses 2022-07-03 12:44:53 -07:00
Sebastian Ullrich
2f67295c7d feat: strengthen pp* signatures 2022-07-03 19:14:49 +02:00
Sebastian Ullrich
146aefd085 feat: ppTactic 2022-07-03 19:00:13 +02:00
Sebastian Ullrich
5e46c0865e doc: update LeanInk 2022-07-03 17:56:51 +02:00
Leonardo de Moura
8f83999202 chore: update release notes 2022-07-03 06:26:47 -07:00
Leonardo de Moura
5e3a3a6c21 chore: remove notation a[i,h] for a[⟨i, h⟩] 2022-07-03 06:24:26 -07:00
kzvi
7326c817d2 fix: fix typos in deBruijn.lean and phoas.lean examples 2022-07-02 16:12:05 -07:00
Leonardo de Moura
0bdab9b4f7 doc: update release notes 2022-07-02 16:06:57 -07:00
Leonardo de Moura
a1d09f1ced chore: update stage0 2022-07-02 15:57:22 -07:00
Leonardo de Moura
a0fdc2d050 chore: fix tests 2022-07-02 15:57:05 -07:00
Leonardo de Moura
54c60d4c2d feat: a[i] and a[i]! notation for Subarrays 2022-07-02 15:54:34 -07:00
Leonardo de Moura
a2456c3a0f feat: add notation a[i, h] for a[⟨i, h⟩] 2022-07-02 15:50:49 -07:00
Leonardo de Moura
eb115abcbe chore: update stage0 2022-07-02 15:37:13 -07:00
Leonardo de Moura
e81a847ba3 fix: doc/array.md 2022-07-02 15:36:01 -07:00
Leonardo de Moura
4568fe755c chore: fix tests 2022-07-02 15:25:06 -07:00
Leonardo de Moura
b3ea1fc925 feat: a[i] notation for arrays now uses i : Fin a.size 2022-07-02 15:19:38 -07:00
Leonardo de Moura
e4b472a9a2 chore: fix tests 2022-07-02 15:17:01 -07:00
Leonardo de Moura
2409840aa8 chore: update stage0 2022-07-02 15:12:53 -07:00
Leonardo de Moura
2ebcf29cde chore: use a[i]! for array accesses that may panic 2022-07-02 15:12:05 -07:00
Leonardo de Moura
88a0506ab0 chore: update stage0 2022-07-02 10:07:09 -07:00
Leonardo de Moura
3f3cd22366 feat: add Array.getOp! and Array.getOp?
Add warning when `Array.getOp` is used. TODO: replace `Array.getOp`
with safe version
2022-07-02 10:06:05 -07:00
Leonardo de Moura
8bf90b128e fix: interactive test driver 2022-07-02 10:01:04 -07:00
Leonardo de Moura
418607f3ad chore: update lake 2022-07-02 09:59:42 -07:00
Leonardo de Moura
e8935d996b chore: String.get?, String.getOp?, and remove String.getOp 2022-07-02 09:59:04 -07:00
Leonardo de Moura
e42b82d775 chore: update stage0 2022-07-02 07:35:07 -07:00
Leonardo de Moura
053bc889a3 feat: elaborate a[i]! and a[i]? 2022-07-02 07:29:58 -07:00
Leonardo de Moura
cbe05441a5 chore: update stage0 2022-07-02 07:29:58 -07:00
Leonardo de Moura
131e7be8c5 feat: add a[i]? and a[i]! parsers 2022-07-02 07:29:58 -07:00
Sebastian Ullrich
0896180f12 chore: CI: downgrade Nix 2022-07-02 12:19:30 +02:00
tydeu
515541709a chore: fix tests 2022-07-02 10:37:22 +02:00
tydeu
29be868342 chore: update Lake 2022-07-02 10:37:22 +02:00
Leonardo de Moura
a639eb185c fix: dsimp zeta issue 2022-07-01 06:42:09 -07:00
Leonardo de Moura
5294a39ec4 feat: add Float.ceil, Float.floor, and Float.round 2022-07-01 06:27:30 -07:00
Leonardo de Moura
d9be3e0017 doc: add new bullet 2022-06-30 19:17:29 -07:00
Leonardo de Moura
0b27d26c99 doc: add quick tour video 2022-06-30 19:16:25 -07:00
Leonardo de Moura
d1f966fa6d doc: docstrings for src/Lean/Elab/Term.lean 2022-06-30 19:01:34 -07:00
Leonardo de Moura
14260f454b feat: improve is_def_eq for projections
It implements in the kernel the optimization in the previous commit.

This commit addresses the following issue raised on Zulip.
https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/unfold.20essentially.20loops/near/288083209
2022-06-30 17:50:44 -07:00