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87 commits

Author SHA1 Message Date
Leonardo de Moura
96a72d67f2 fix: avoid unnecessary dependencies at mkMatcher 
fixes #1237
 2022-06-23 10:21:32 -07:00
Leonardo de Moura
2a940dd4ae feat: add Expr.collectFVars, LocalDecl.collectFVars, Pattern.collectFVars, and AltLHS.collectFVars 
They are all in `MetaM`.

These are helper functions for issue #1237. We need to "cleanup" the
local context before trying to compile the match-expression.

see issue #1237
 2022-06-22 15:53:43 -07:00
Leonardo de Moura
bbc196eeb7 fix: make sure WF/Fix.lean tolerates MatcherApp.addArg? failures 
see #1228
 2022-06-17 17:37:33 -07:00
Leonardo de Moura
041827bed5 chore: unused variables 2022-06-07 17:54:10 -07:00
Sebastian Ullrich
8eefbf5227 chore: further clean up refactored code 2022-06-07 16:37:45 -07:00
Sebastian Ullrich
fb2a2b3de2 fix: fixup previous commit 2022-06-07 16:37:45 -07:00
Sebastian Ullrich
ae7b895f7a refactor: unname some unused variables 2022-06-07 16:37:45 -07:00
Leonardo de Moura
090503cfd5 chore: cleanup 2022-05-06 17:12:10 -07:00
Leonardo de Moura
c241ef61b1 fix: use HEq (if needed) for encoding h : discr equalities 2022-04-29 15:05:48 -07:00
Leonardo de Moura
941ad84ece fix: getMkMatcherInputInContext 2022-04-29 12:44:36 -07:00
Leonardo de Moura
d4d538cad8 fix: counterexample generation for new match encoding 2022-04-29 12:36:53 -07:00
Leonardo de Moura
89441aac2a feat: match equation theorem generation for new h : discr notation encoding 
TODO: splitter theorem generation still needs to be fixed.
 2022-04-29 11:48:25 -07:00
Leonardo de Moura
8d9626dab7 feat: delaborate match h : d with ... 2022-04-29 07:17:46 -07:00
Leonardo de Moura
0f7754847d chore: style 2022-04-29 07:17:46 -07:00
Leonardo de Moura
7a369848a0 feat: new mkMatcher 
TODO: adjust match elaborator
 2022-04-29 07:17:46 -07:00
Leonardo de Moura
f4b4b14797 refactor: prepare to handle match h: notation at Meta\Match\Match.lean 2022-04-29 07:17:46 -07:00
Leonardo de Moura
3d9e587862 fix: check type mismatch at dependent pattern matching compiler 
see issue #1057
 2022-03-21 09:28:02 -07:00
Leonardo de Moura
719db55a9c chore: fix trace class 2022-03-17 13:22:16 -07:00
Sebastian Ullrich
54522006f4 refactor: List.get: take Fin to align with Array.get 
/cc @leodemoura
 2022-02-15 18:41:22 +01:00
Leonardo de Moura
12e2a79170 chore: fix codebase after removing auto pure 2022-02-03 18:08:14 -08:00
Leonardo de Moura
ef449e816f chore: improve trace messages 2022-01-19 14:29:04 -08:00
Leonardo de Moura
1c1e6d79a7 feat: add equality proof for named patterns 
The user can optionally name the equality proof.
The new test demostrates how to name the equality proof.

closes #501
 2022-01-18 12:43:01 -08:00
Leonardo de Moura
68bd55af32 chore: fix codebase 2021-12-10 13:12:09 -08:00
Leonardo de Moura
41040a81de fix: auxiliary matcher definitions should be treated as abbreviations 
The motivation is to prevent performance problems such as the one
described at issue #854.

Fixes #854 after a update stage0
 2021-12-07 16:43:20 -08:00
Leonardo de Moura
6b235b05d2 feat: avoid code generation after stage1 for match auxiliary functions 2021-09-11 13:41:38 -07:00
Leonardo de Moura
ca747e9b27 feat: use contradiction at leaves 
closes #644
 2021-08-22 18:41:02 -07:00
Leonardo de Moura
bba9353619 fix: make sure isDefEqOffset does not expose kernel nat literals 
This issue is similar to a bug where `isDefEqOffset` was exposing
`Nat.add` when processing `HAdd.hAdd`.

Fixes #561
The example at issue #561 is now working, but we may have other places
where raw literals are being accidentally exposed.
 2021-08-02 11:27:00 -07:00
Gabriel Ebner
3cff5ceb99 perf: make trace[...] ... notation lazy 2021-06-23 00:07:27 -07:00
Daniel Fabian
9200de01ef refactor: fix code review comments. 2021-06-06 06:40:09 -07:00
Daniel Fabian
4e88fdc99a feat: add getMkMatcherInputInContext. 2021-06-06 06:40:09 -07:00
Leonardo de Moura
28b055463f fix: fixes #471 2021-05-22 15:42:52 -07:00
Daniel Fabian
42bd44ab82 refactor: Capture environment modification in mkMatcher. 
Doing this allows us to add the declaration in the backtracking case of structural recursion.
 2021-05-20 15:20:16 -07:00
Daniel Fabian
91ecbb5b5c feat: Add withMkMatcherInput. 
This is the inverse function to `mkMatcher`, i.e. a way to turn a matcher into an input.
 2021-05-19 07:28:14 -07:00
Daniel Fabian
cf030a1634 refactor: Add MkMatcherInput. 
Since we are going to make `mkMatcher` reversible, it's quite useful to have the input be a `structure`. This way we make sure, that the inverse function always returns the same type as `mkMatcher` needs as input.
 2021-05-19 07:28:14 -07:00
Leonardo de Moura
9d45ea6721 feat: try to improve dependent pattern matching failure error message 2021-03-30 23:40:11 -07:00
Leonardo de Moura
f20fc6328c fix: better error message when cases fails and there are no alternatives 2021-03-26 16:28:21 -07:00
Leonardo de Moura
650c6df380 feat: try other variables after failure 2021-03-22 21:02:26 -07:00
Leonardo de Moura
3749213e08 fix: missing whnf at Unify.unify 2021-03-21 22:38:46 -07:00
Leonardo de Moura
be841a7cad chore: throwError! => throwError, throwErrorAt! => throwErrorAt 
@Kha I marked the corresponding methods as `protected`.
I currently can't stand `throw_error`, and I am optimistic about
server highlighting feature you are working on :)
 2021-03-11 11:59:45 -08:00
Leonardo de Moura
68143ca8ba chore: trace[...]! ==> trace[...] 
@Kha I think this one is a good change, there is no real reason for
using the `!` suffix here.
 2021-03-10 18:44:43 -08:00
Leonardo de Moura
e1f6965266 feat: allow user to define rewrite lemmas with (local) match expressions 2021-02-19 15:18:19 -08:00
Leonardo de Moura
6c119a1921 chore: use register_builtin_option 2021-01-26 18:24:56 -08:00
Leonardo de Moura
ea0fda39bc chore: Declaration.lean naming convention 
`Declaration.lean` was one of the first Lean 4 files, and was still
using an old naming convention.

cc @Kha
 2021-01-20 17:07:02 -08:00
Leonardo de Moura
6a39c65bd2 feat: improve match error message 2021-01-14 14:58:34 -08:00
Leonardo de Moura
11c7ca40c3 fix: missing case at Match.lean 2021-01-07 17:38:22 -08:00
Leonardo de Moura
39e374e7cd fix: improve error message at invalid match-expr 
The location is not perfect because we only have a `ref` for the whole alternative.
 2020-12-29 14:21:02 -08:00
Leonardo de Moura
ae5aa51712 chore: add explicit discard 2020-12-08 06:18:18 -08:00
Leonardo de Moura
9d304df757 feat: heterogeneous Append experiment 
@Kha This one required a bunch of manual fixes. The main issue is that
before we added the string interpolation feature, we created
`MessageData`s using `++` and coercions. For example, given
`(e : Expr)`, we would write
```
let msg : MessageData := "type: " ++ e
```
and rely on the coercions `String -> MessageData` and
`Expr -> MessageData`, and the instance `Append MessageData`.
However, heterogeneous operators "block" the expected type propagation downwards.
This kind of code is obsolete now since we can write a more compact
version using string interpolation
```
let msg := m!"type: {e}"
```
 2020-12-01 16:32:41 -08:00
Leonardo de Moura
b6f242434d fix: fixes #229 2020-11-30 11:51:13 -08:00
Leonardo de Moura
0869f38de4 chore: update structure, class, inductive 2020-11-27 15:09:30 -08:00