idris-lang/Idris2
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Merge pull request #396 from edwinb/lazy-lazy

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Don't commit to a Force too early
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Edwin Brady 2020-07-01 12:29:52 +01:00 committed by GitHub
commit c4d56e5481
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GPG Key ID: 4AEE18F83AFDEB23
11 changed files with 50 additions and 18 deletions
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8
libs/prelude/Builtin.idr
View File

@ -174,3 +174,11 @@ believe_me = prim__believe_me _ _
export partial
idris_crash : String -> a
idris_crash = prim__crash _
public export
delay : a -> Lazy a
delay x = Delay x
public export
force : Lazy a -> a
force x = Force x

9
src/Core/Unify.idr
View File

@ -1281,8 +1281,13 @@ mutual
unifyWithLazyD _ _ mode loc env (NDelayed _ _ tmx) (NDelayed _ _ tmy)
= unify (lower mode) loc env tmx tmy
unifyWithLazyD _ _ mode loc env (NDelayed _ r tmx) tmy
= do vs <- unify (lower mode) loc env tmx tmy
unifyWithLazyD _ _ mode loc env x@(NDelayed _ r tmx) tmy
= if isHoleApp tmy && not (umode mode == InMatch)
-- given type delayed, expected unknown, so let's wait and see
-- what the expected type turns out to be
then postpone True
loc mode "Postponing in lazy" env x tmy
else do vs <- unify (lower mode) loc env tmx tmy
pure (record { addLazy = AddForce r } vs)
unifyWithLazyD _ _ mode loc env tmx (NDelayed _ r tmy)
= do vs <- unify (lower mode) loc env tmx tmy

1
tests/Main.idr
View File

@ -98,6 +98,7 @@ idrisTests
"reg008", "reg009", "reg010", "reg011", "reg012", "reg013", "reg014",
"reg015", "reg016", "reg017", "reg018", "reg019", "reg020", "reg021",
"reg022", "reg023", "reg024", "reg025", "reg026", "reg027", "reg028",
"reg029",
-- Totality checking
"total001", "total002", "total003", "total004", "total005",
"total006", "total007", "total008",

12
tests/ideMode/ideMode001/expected
View File

@ -2,13 +2,13 @@
000038(:write-string "1/1: Building LocType (LocType.idr)" 1)
0000ca(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 23) (:end 7 24)) ((:name "x") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "a")))))) 1)
0000d9(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 38) (:end 7 40)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect m a)")))))) 1)
0000df(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 35) (:end 7 37)) ((:name "xs") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect {k:269} a)")))))) 1)
0000d3(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 9) (:end 7 10)) ((:name "x") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "?{_:270}_[]")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 14) (:end 7 16)) ((:name "xs") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{k:269}_[] ?{_:270}_[])")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 18) (:end 7 20)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{_:271}_[] ?{_:270}_[])")))))) 1)
0000df(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 35) (:end 7 37)) ((:name "xs") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect {k:277} a)")))))) 1)
0000d3(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 9) (:end 7 10)) ((:name "x") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "?{_:278}_[]")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 14) (:end 7 16)) ((:name "xs") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{k:277}_[] ?{_:278}_[])")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 18) (:end 7 20)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{_:279}_[] ?{_:278}_[])")))))) 1)
0000d9(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 6 16) (:end 6 18)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect m a)")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 6 11) (:end 6 13)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{_:260}_[] ?{_:259}_[])")))))) 1)
0001cb(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 1) (:end 5 48)) ((:name "Main.append") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "{0 m : Prelude.Nat} -> {0 a : Type} -> {0 n : Prelude.Nat} -> (({arg:250} : (Main.Vect n[0] a[1])) -> (({arg:251} : (Main.Vect m[3] a[2])) -> (Main.Vect (Prelude.+ Prelude.Nat Prelude.Num implementation at Prelude.idr:761:1--768:1 n[2] m[4]) a[3])))")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 6 11) (:end 6 13)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{_:268}_[] ?{_:267}_[])")))))) 1)
0001cb(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 1) (:end 5 48)) ((:name "Main.append") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "{0 m : Prelude.Nat} -> {0 a : Type} -> {0 n : Prelude.Nat} -> (({arg:258} : (Main.Vect n[0] a[1])) -> (({arg:259} : (Main.Vect m[3] a[2])) -> (Main.Vect (Prelude.+ Prelude.Nat Prelude.Num implementation at Prelude.idr:761:1--768:1 n[2] m[4]) a[3])))")))))) 1)
0000cc(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 47) (:end 5 48)) ((:name "a") (:namespace "") (:decor :type) (:implicit :False) (:key "") (:doc-overview "") (:type "Type")))))) 1)
0000d3(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 44) (:end 5 45)) ((:name "m") (:namespace "") (:decor :type) (:implicit :False) (:key "") (:doc-overview "") (:type "Prelude.Nat")))))) 1)
0000d3(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 40) (:end 5 41)) ((:name "n") (:namespace "") (:decor :type) (:implicit :False) (:key "") (:doc-overview "") (:type "Prelude.Nat")))))) 1)

12
tests/ideMode/ideMode003/expected
View File

@ -2,13 +2,13 @@
000038(:write-string "1/1: Building LocType (LocType.idr)" 1)
0000ca(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 23) (:end 7 24)) ((:name "x") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "a")))))) 1)
0000d9(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 38) (:end 7 40)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect m a)")))))) 1)
0000df(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 35) (:end 7 37)) ((:name "xs") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect {k:269} a)")))))) 1)
0000d3(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 9) (:end 7 10)) ((:name "x") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "?{_:270}_[]")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 14) (:end 7 16)) ((:name "xs") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{k:269}_[] ?{_:270}_[])")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 18) (:end 7 20)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{_:271}_[] ?{_:270}_[])")))))) 1)
0000df(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 35) (:end 7 37)) ((:name "xs") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect {k:277} a)")))))) 1)
0000d3(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 9) (:end 7 10)) ((:name "x") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "?{_:278}_[]")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 14) (:end 7 16)) ((:name "xs") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{k:277}_[] ?{_:278}_[])")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 7 18) (:end 7 20)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{_:279}_[] ?{_:278}_[])")))))) 1)
0000d9(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 6 16) (:end 6 18)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect m a)")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 6 11) (:end 6 13)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{_:260}_[] ?{_:259}_[])")))))) 1)
0001cb(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 1) (:end 5 48)) ((:name "Main.append") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "{0 m : Prelude.Nat} -> {0 a : Type} -> {0 n : Prelude.Nat} -> (({arg:250} : (Main.Vect n[0] a[1])) -> (({arg:251} : (Main.Vect m[3] a[2])) -> (Main.Vect (Prelude.+ Prelude.Nat Prelude.Num implementation at Prelude.idr:761:1--768:1 n[2] m[4]) a[3])))")))))) 1)
0000ed(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 6 11) (:end 6 13)) ((:name "ys") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "(Main.Vect ?{_:268}_[] ?{_:267}_[])")))))) 1)
0001cb(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 1) (:end 5 48)) ((:name "Main.append") (:namespace "") (:decor :bound) (:implicit :False) (:key "") (:doc-overview "") (:type "{0 m : Prelude.Nat} -> {0 a : Type} -> {0 n : Prelude.Nat} -> (({arg:258} : (Main.Vect n[0] a[1])) -> (({arg:259} : (Main.Vect m[3] a[2])) -> (Main.Vect (Prelude.+ Prelude.Nat Prelude.Num implementation at Prelude.idr:761:1--768:1 n[2] m[4]) a[3])))")))))) 1)
0000cc(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 47) (:end 5 48)) ((:name "a") (:namespace "") (:decor :type) (:implicit :False) (:key "") (:doc-overview "") (:type "Type")))))) 1)
0000d3(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 44) (:end 5 45)) ((:name "m") (:namespace "") (:decor :type) (:implicit :False) (:key "") (:doc-overview "") (:type "Prelude.Nat")))))) 1)
0000d3(:output (:ok (:highlight-source ((((:filename "LocType.idr") (:start 5 40) (:end 5 41)) ((:name "n") (:namespace "") (:decor :type) (:implicit :False) (:key "") (:doc-overview "") (:type "Prelude.Nat")))))) 1)

2
tests/idris2/coverage008/expected
View File

@ -1,6 +1,6 @@
1/1: Building wcov (wcov.idr)
Main> Main.tfoo is total
Main> Main.wfoo is total
Main> Main.wbar is not covering due to call to function Main.with block in 1393
Main> Main.wbar is not covering due to call to function Main.with block in 1395
Main> Main.wbar1 is total
Main> Bye for now!

2
tests/idris2/coverage010/expected
View File

@ -3,4 +3,4 @@ casetot.idr:12:1--13:1:main is not covering at:
12 main : IO ()
13 main = do
Calls non covering function Main.case block in 2146(622)
Calls non covering function Main.case block in 2148(630)

2
tests/idris2/reflection003/expected
View File

@ -1,6 +1,6 @@
1/1: Building refprims (refprims.idr)
LOG 0: Name: Prelude.List.++
LOG 0: Type: (%pi Rig0 Implicit (Just a) %type (%pi Rig1 Explicit (Just xs) (Prelude.List a) (%pi RigW Explicit (Just {arg:6310}) (Prelude.List a) (Prelude.List a))))
LOG 0: Type: (%pi Rig0 Implicit (Just a) %type (%pi Rig1 Explicit (Just xs) (Prelude.List a) (%pi RigW Explicit (Just {arg:6318}) (Prelude.List a) (Prelude.List a))))
LOG 0: Name: Prelude.Strings.++
LOG 0: Type: (%pi Rig1 Explicit (Just x) String (%pi Rig1 Explicit (Just y) String String))
LOG 0: Resolved name: Prelude.Nat

1
tests/idris2/reg029/expected Normal file
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@ -0,0 +1 @@
1/1: Building lqueue (lqueue.idr)

14
tests/idris2/reg029/lqueue.idr Normal file
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@ -0,0 +1,14 @@
interface Queue (q: Type -> Type) where
empty : q a
isEmpty : q a -> Bool
snoc : q a -> a -> q a
head : q a -> a
tail : q a -> q a
data CatList : (Type -> Type) -> Type -> Type where
E : CatList q a
C : {0 q : Type -> Type} -> a -> q (Lazy (CatList q a)) -> CatList q a
link : (Queue q) => CatList q a -> Lazy (CatList q a) -> CatList q a
link E s = s -- Just to satisfy totality for now.
link (C x xs) s = C x (snoc xs s)

3
tests/idris2/reg029/run Executable file
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@ -0,0 +1,3 @@
$1 --check lqueue.idr
rm -rf build