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6127 commits

Author SHA1 Message Date
Leonardo de Moura
520a5f566a fix: local name resolution 
Local name resolution was incorrect when identifier had macro scopes
and projections were used.

cc @Kha
 2020-10-05 17:32:46 -07:00
Leonardo de Moura
43ce35985b chore: fix test 2020-10-05 16:47:34 -07:00
Leonardo de Moura
54e10776d4 feat: improve error messages for do notation 
@Kha we are getting better error message, but we need to figure out a
way to suppress error messages that come from the "plumbing".
For example, in the following example.
```
def f4 (b : Bool) (n : Nat) (v : Vector Nat n) : Vector Nat (n+1) := do
if b then
  v := Vector.cons 1 v
Vector.cons 1 v
```
We get the nice "invalid reassignment" error at `v := ...`, but
we also get the nasty
```
error: application type mismatch
  jp✝ v
argument
  v
has type
  Vector Nat (n + 1)
but is expected to have type
  Vector Nat n
failed to synthesize instance
  CoeT (Vector Nat (n + 1)) v (Vector Nat n)
```
Where `jp✝` is a joinpoint created by the do-notation macro expander.
I thought about using `withoutErrToSorry` when elaborating the expanded
`do` term.
We may also try to add more helper hints such as `ensureTypeOf!` and
use them around "plumbing" code (e.g., "joinpoint goto"s)
 2020-10-05 16:33:59 -07:00
Leonardo de Moura
eafd9bc0ad feat: expand for x in xs notation 2020-10-05 15:37:34 -07:00
Leonardo de Moura
98dbe45ab8 chore: remove Monad List instance 
@Kha The new `do` notation works for pure code too.
It automatically inserts `Id` if the expected type is not a monad.
This works great when we are not conflating data and control.
After deleting `Monad List`, we will be able to write functions such as
```lean
def mapWhen (p : Nat → Bool) (f : Nat → Nat) (xs : List Nat) : List Nat := do
for x in xs do
  if p x then
    x := f x
```
without adding `Id.run` before the `do`.
 2020-10-05 13:27:18 -07:00
Leonardo de Moura
7a0cbdbe04 test: shadowing in do blocks 2020-10-05 11:51:17 -07:00
Leonardo de Moura
a6063a5560 chore: fix tests 2020-10-05 11:28:52 -07:00
Leonardo de Moura
fb83e8e79b feat: allow any variable to be reassigned 2020-10-05 11:25:19 -07:00
Leonardo de Moura
7325dcd630 feat: use do at for-in and unless notations 2020-10-05 09:43:11 -07:00
Leonardo de Moura
d8c2d0b551 fix: CodeBlock concatenation 2020-10-04 17:59:56 -07:00
Leonardo de Moura
0caa17889f feat: remove old elabDo 
Remark: we still have a few WIP
 2020-10-04 17:14:36 -07:00
Leonardo de Moura
4a2a2758ec chore: adjust test 2020-10-04 16:19:50 -07:00
Leonardo de Moura
946f5537ee fix: pullExitPoints 2020-10-01 16:12:58 -07:00
Leonardo de Moura
4b6d308bc2 feat: add elabTypeOf and elabEnsureTypeOf 2020-10-01 14:56:46 -07:00
Leonardo de Moura
d0ade7ff08 feat: extend doBlock expander 
- Add support for `if h:c then t else e`, `h` may shadow reassignable
variables

- Pattern variables in `match` alternatives may shadow reassignable
variables

- A single declaration/reassignment in a `do` block may
declare/reassign multiple variables. Example: `let (x, y) := t`
 2020-10-01 10:40:55 -07:00
Leonardo de Moura
94c7945bd3 feat: do code blocks 
WIP
 2020-09-30 19:20:16 -07:00
Leonardo de Moura
c10e92b348 chore: add temporary workarounds 2020-09-30 07:05:46 -07:00
Leonardo de Moura
72f969e9dd test: new frontend 2020-09-29 18:22:34 -07:00
Leonardo de Moura
0fe705f3a1 feat: improve error messages for unassigned metavariables 
cc @Kha
 2020-09-29 17:18:03 -07:00
Sebastian Ullrich
16c71e6a26 fix: IO.Process.output 2020-09-29 08:01:10 -07:00
Sebastian Ullrich
19dcbdcec9 fix: do not format Syntax in Messages eagerly 2020-09-29 07:59:22 -07:00
Sebastian Ullrich
d51101b884 feat: sanitize Syntax in messages 
Fixes #182
 2020-09-29 07:59:22 -07:00
Sebastian Ullrich
af8dc5eeab feat: pretty print Syntax in messages 2020-09-29 07:59:22 -07:00
Sebastian Ullrich
6ad47878ef chore: improve error message using (<- ...) outside of do 2020-09-29 07:59:22 -07:00
Leonardo de Moura
49c5c5c08a fix: horrible error message due to constApprox := true 
The new test `typeMismatch.lean` contains two examples where the error
message was dreadful.
 2020-09-29 07:54:48 -07:00
Leonardo de Moura
d6db541366 chore: cleanup 2020-09-28 19:05:48 -07:00
Leonardo de Moura
4fae8588fd test: optional ';' 2020-09-28 17:11:00 -07:00
Leonardo de Moura
e10edde5cd feat: optional ; in terms 2020-09-28 17:10:59 -07:00
Leonardo de Moura
d4c1432574 fix: tacticSeqBracketed 2020-09-28 17:10:59 -07:00
Leonardo de Moura
2755972447 fix: missing checkColGt and tests 2020-09-28 17:10:59 -07:00
Leonardo de Moura
765a8ac984 test: do with optional ; 2020-09-28 17:10:57 -07:00
Leonardo de Moura
08d54b6043 feat: add checkColGt at app 
@Kha Only one example broke :)
 2020-09-28 17:10:57 -07:00
Leonardo de Moura
39f8fd8eb9 fix: trailing ';' at end of input 2020-09-27 16:58:23 -07:00
Leonardo de Moura
8e81db0d2b chore: add temporary workaround to tests 
We will remove it after we implement `doMatch`
 2020-09-27 06:58:10 -07:00
Leonardo de Moura
a0a724ddbd fix: tests and elabDo 2020-09-26 19:12:01 -07:00
Leonardo de Moura
ef9b661c8d chore: add temporary workarounds until we implement new elabDo 2020-09-26 18:11:46 -07:00
Leonardo de Moura
5fa8d9105e feat: add if and for for do blocks 2020-09-26 18:03:53 -07:00
Leonardo de Moura
6892a957d6 feat: trailing ; in indented "do" sequences 
cc @Kha
 2020-09-26 16:08:30 -07:00
Leonardo de Moura
3f4499be08 feat: allow trailing ; at doSeqBracketed 2020-09-26 14:20:47 -07:00
Leonardo de Moura
8e159f004c fix: missing synthesizeSyntheticMVarsNoPostponing at elabMatch 2020-09-25 18:48:23 -07:00
Leonardo de Moura
b71e5b4648 test: cdot tests 2020-09-25 18:48:23 -07:00
Sebastian Ullrich
eae32b08a6 fix: pretty printing multiple universe levels 
Fixes #190
 2020-09-25 20:06:18 +02:00
Leonardo de Moura
240680db1a feat: add binductionOn support 2020-09-25 07:18:14 -07:00
Leonardo de Moura
d17c20be25 test: add old Lean3 tests 2020-09-25 06:48:51 -07:00
Leonardo de Moura
1775d9b04b fix: visit types 
See new test `tests/lean/run/def14.lean`
 2020-09-25 06:48:51 -07:00
Leonardo de Moura
0e16bd60dc fix: missing case 2020-09-25 06:48:51 -07:00
Leonardo de Moura
afa2f9b74c test: add old Lean3 tests 2020-09-25 06:48:51 -07:00
Leonardo de Moura
e4f492d68a feat: add support for reflexive inductive datatypes 2020-09-24 20:30:12 -07:00
Leonardo de Moura
66d35cdd76 fix: the generated matcher must be able to eliminate into different universe levels 2020-09-24 19:34:14 -07:00
Leonardo de Moura
bdf412bf49 test: add old Lean3 tests 2020-09-24 18:01:23 -07:00