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6563 commits

Author SHA1 Message Date
Leonardo de Moura
aa68057c85 chore: more general type universes in example 2022-03-15 05:19:02 -07:00
Leonardo de Moura
4e261b15e5 fix: smart unfolding bug in over applications 2022-03-14 19:17:21 -07:00
Leonardo de Moura
eb7539ef77 fix: mkEqnTypes overapplied lhs in equational theorems 
This issue was exposed by the "Dependent de Bruijn indices" from CPDT.
 2022-03-14 17:42:21 -07:00
Leonardo de Moura
7fda1f47f8 test: add test for issue fixed in previous commit 2022-03-14 14:11:08 -07:00
Leonardo de Moura
ef154ec0cf test: add TreeNode example using for in notation 2022-03-14 11:52:54 -07:00
Leonardo de Moura
2ac9cfb7b1 fix: eta expand partial applications of recursive function being defined 2022-03-14 10:05:33 -07:00
Leonardo de Moura
801552e1ac chore: fix tests 2022-03-14 10:05:33 -07:00
Leonardo de Moura
d2cc5b4a83 chore: fix test 2022-03-13 15:53:21 -07:00
Leonardo de Moura
fa0964c07e fix: preserve variable name at WF decreasing goals when function has only one non fixed argument 2022-03-13 13:20:07 -07:00
Leonardo de Moura
060be7e7ec fix: :: is infix right 2022-03-13 09:25:56 -07:00
Leonardo de Moura
672a889c83 test: add hlist pattern match example 2022-03-13 09:15:55 -07:00
Leonardo de Moura
5707cab7bf feat: improve #eval command 
Now, if it fails to synthesize the TC instance, it applies `whnf` and
tries again.
 2022-03-12 19:55:15 -08:00
Leonardo de Moura
3cd41acd14 test: HList with notation overloads 2022-03-12 19:47:57 -08:00
Leonardo de Moura
af5a24140a test: simple type checker at CPDT 2022-03-12 18:44:52 -08:00
Leonardo de Moura
7e3519a3a2 test: add CPDT first example 2022-03-12 17:06:20 -08:00
Leonardo de Moura
f0c31d7e28 feat: allow rw to unfold nonrecursive definitions too 2022-03-12 15:44:52 -08:00
Leonardo de Moura
cf0ca026fb feat: equation theorems at rw 2022-03-12 13:53:02 -08:00
Leonardo de Moura
a6bfefe5bd fix: nasty performance problem at isDefEq 
This problem was originally exposed by the `Array.eraseIdxAux`.
 2022-03-12 10:44:43 -08:00
Leonardo de Moura
eddcedb58c fix: pattern normalization code 2022-03-12 06:07:04 -08:00
Leonardo de Moura
a4f47adf9e fix: normalize method at Match.lean 2022-03-11 18:19:37 -08:00
larsk21
64dba41b4c feat: enable fuzzy matching for completion 2022-03-11 16:25:26 -08:00
Leonardo de Moura
5caf1bc692 chore: style 
Use `·` instead of `.` for structuring tactics.
 2022-03-11 16:12:46 -08:00
Leonardo de Moura
ddf93d2f8a feat: support for arrow types in the dot notation 
cc @gebner
 2022-03-11 15:39:41 -08:00
Leonardo de Moura
8d42978e63 feat: generate error message when induction tactic is used on a nested inductive type without specifying an eliminator 2022-03-11 14:45:57 -08:00
Leonardo de Moura
712e9b7d45 chore: add custom induction principle for LazyList 2022-03-11 14:21:35 -08:00
Leonardo de Moura
7d5da95434 fix: remove unused hypotheses from conditional equation theorems 2022-03-11 14:10:57 -08:00
Leonardo de Moura
272dd5533f chore: style use · instead of . for lambda dot notation 
We are considering removing `.` as an alternative for `·` in the
lambda dot notation (e.g., `(·+·)`).
Reasons:
- `.` is not a perfect replacement for `·` (e.g., `(·.insert ·)`)
- `.` is too overloaded: `(f.x)` and `(f .x)` and `(f . x)`. We want to keep the first two.
 2022-03-11 07:49:03 -08:00
Leonardo de Moura
e1fa9c131c feat: inferring namespace from expected type a la Swift 
Now that `PatternVars.lean` has been redesigned, it is feasible to
implement issue #944.

closes #944
 2022-03-10 16:55:25 -08:00
Leonardo de Moura
3214a20d33 feat: allow overloaded notation in patterns 2022-03-10 12:51:34 -08:00
Leonardo de Moura
fddc8b06ac fix: missing case at getStuckMVar? 
Fix issue reported at
https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/'rewrite'.20failed.20but.20it.20should.20work/near/274870747
 2022-03-10 10:33:11 -08:00
Leonardo de Moura
7850dc023b fix: make sure the structure instance notation does not leak auxiliary type annotations (e.g., autoParam and optParam) 2022-03-10 08:41:00 -08:00
Leonardo de Moura
efc89eb4e1 fix: make sure inferProjType consume auxiliary type annotations 2022-03-10 08:15:34 -08:00
Leonardo de Moura
0ef8aaeda0 feat: make sure minor premises in recursors do not include auxiliary type annotations (e.g., autoParam and optParam) 2022-03-10 08:08:36 -08:00
Leonardo de Moura
33883e9d2a fix: resulting type of projection functions should not include auxiliary type annotations (e.g., autoParam) 2022-03-10 07:47:38 -08:00
Leonardo de Moura
38668308ef fix: do not rename metavariables that are already in the patternVars array 
It fixes a regression introduced yesterday.
 2022-03-10 05:53:54 -08:00
Leonardo de Moura
ca253c43e1 refactor: pattern elaboration 
We don't use the following hack anymore:
-  /- HACK: `fvarId` is not in the scope of `mvarId`
-     If this generates problems in the future, we should update the metavariable declarations. -/
-  assignExprMVar mvarId (mkFVar fvarId)

This hack was corrupting the `InfoTree`.
 2022-03-09 18:19:14 -08:00
Leonardo de Moura
b6dc3dda04 chore: fix tests 2022-03-09 14:02:13 -08:00
Leonardo de Moura
74411aa472 fix: do not display implicit fields 2022-03-09 12:33:22 -08:00
Leonardo de Moura
50ae170bcc feat: allow mkLambdaFVars and mkForallFVars to abstract unassigned metavars too 2022-03-09 11:27:58 -08:00
Leonardo de Moura
164f07a5e5 feat: generalize Expr.abstractRange 
It now takes free variables **and** metavariables.
This is the first step to make `mkForallFVars` and `mkLambdaFVars`
more general.
 2022-03-08 18:19:17 -08:00
Leonardo de Moura
4ee131981d feat: in an inductive family the longest fixed prefix of indices is now promoted to parameters 
This modification is relevant for fixing regressions on recent changes
to the auto implicit behavior for inductive families.

The following declarations are now accepted:
```lean
inductive HasType : Fin n → Vector Ty n → Ty → Type where
  | stop : HasType 0 (ty :: ctx) ty
  | pop  : HasType k ctx ty → HasType k.succ (u :: ctx) ty

inductive Sublist : List α → List α → Prop
  | slnil : Sublist [] []
  | cons l₁ l₂ a : Sublist l₁ l₂ → Sublist l₁ (a :: l₂)
  | cons2 l₁ l₂ a : Sublist l₁ l₂ → Sublist (a :: l₁) (a :: l₂)

inductive Lst : Type u → Type u
  | nil  : Lst α
  | cons : α → Lst α → Lst α
```

TODO: universe inference for `inductive` should be improved. The
current approach is not good enough when we have auto implicits.

TODO: allow implicit fixed indices that do not depend on indices that
cannot be moved to become parameters.
 2022-03-08 17:56:34 -08:00
Leonardo de Moura
234046521a feat: print number of parameters for an inductive type 2022-03-08 17:48:46 -08:00
Leonardo de Moura
7b84b4cdaa fix: improve inductive indices elaboration 
TODO: convert fixed indices to parameters. Motivation: types such as
```lean
inductive Foo : List α → Type
  | mk : Foo []
```
Users should not need to write
```lean
inductive Foo {α} : List α → Type
  | mk : Foo []
```
 2022-03-08 17:48:46 -08:00
Jonathan Coates
11cce61e4d chore: Clean up LSP folding a little 
- Wait for all terms to be elaborated before showing folding regions.
   May want to change this to support partial results.
 - Use .span to extract import statements, rather than mutually
   recursive functions.
 - Some tiny other bits of cleanup
 2022-03-07 17:23:35 +01:00
Jonathan Coates
04e60cebd1 feat: LSP code folding support 
The following constructs are foldable:
 - Sections and namespaces
 - Blocks of import/open statements
 - Multi-line commands (so mostly definitions)
 - Mutual definitions
 - Module-level doc comments
 - Top-level definition doc comments

Fixes #1012
 2022-03-07 17:23:35 +01:00
Sebastian Ullrich
f2d5470f19 feat: allow interpretation of constants initialized by native code 2022-03-07 10:59:49 +01:00
Leonardo de Moura
dddfb65660 test: use notation 2022-03-06 19:28:01 -08:00
Leonardo de Moura
7c5604996a test: unfoldr 2022-03-06 19:26:04 -08:00
Leonardo de Moura
10bccfe501 test: remove workaround 2022-03-06 13:58:42 -08:00
Leonardo de Moura
46d1111d3d fix: typo at unfoldBothDefEq 2022-03-06 13:54:42 -08:00