Comments (2)
Yes. that would be convenient for writing (documenting) constraint programs.
Implementation should be easy (and needs no expansion)?
- ignore type synonyms when generating code (you do type inference anyway)
- copy the type synonym declarations verbatim (for the "original" code that is used for testing at the end)
from co4.
you do type inference anyway
But type inference fails with type synonyms.
data Bool = False | True
type Foo = Bool
data Maybe = Just Foo | Nothing
main x = case x of
Just b -> b
Nothing -> False
gives
No unifier found for 'Foo' and 'Bool'
Anyway, I implemented synonym expansion in TH frontend (cf. 60c8dba). It's supposed to work with both non-parametrized synonyms
type Foo = ....
and parametrized synonyms
type Foo x = ... x ....
from co4.
Related Issues (20)
- Prelude.head: empty list in CPF output HOT 1
- output of labelled systems is broken HOT 3
- models must be total (patttern should end with [Any,..,Any])
- instantiation (?) fails HOT 1
- assertKnownWithMsg :: String -> a -> a HOT 1
- automatic asserts HOT 2
- represent Set Int as [Bool]
- note: moved co4/tc subdir to matchbox repo HOT 1
- support if-then-else HOT 1
- overflow in naturals leads to unsatisfiable constraint
- configurable name of top-level constraint
- transformers needs -compat?
- build error (src/CO4/Frontend/HaskellSrcExts.hs:44:87:) HOT 1
- Multiple declarations of ... HOT 2
- Applicative-like operators for Allocators HOT 2
- Configurable support for partial functions
- Illegal variable name: ‘enc[]Cons’ HOT 1
- Illegal variable name: ‘enc++PolyInstance_3235’
- fromKnown with 3rd, 4th, ... constructor of data type HOT 3
- Wrong Assertion? HOT 2
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from co4.