diff options
| author | Fintan Halpenny | 2019-07-27 15:09:31 +0100 |
|---|---|---|
| committer | FintanH | 2019-07-31 10:35:03 +0100 |
| commit | e51b89d717a1f1aaba7e59c79c9fb4b8e7031bab (patch) | |
| tree | cef94e9c2c4af33555d457dcd7b19e91e1be185a /dhall/src/error | |
| parent | 2a6a37398394a33e281fa4f2055a3b33c21502c3 (diff) | |
Add case for RightBasedRecordMerge in the typechecking phase.
The implementation checks the types and kinds of the LHS and RHS.
In the happy path it unions the HashMap prefering keys on the RHS over
the LHS, and the result is the type of the resulting HashMap.
The error cases are:
- If the kinds of the records differ it results in a RecordMismatch error.
- If either the LHS or RHS are not records it results in a
MustCombineRecord error.
Diffstat (limited to 'dhall/src/error')
| -rw-r--r-- | dhall/src/error/mod.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/dhall/src/error/mod.rs b/dhall/src/error/mod.rs index 125d013..20b8636 100644 --- a/dhall/src/error/mod.rs +++ b/dhall/src/error/mod.rs @@ -76,9 +76,11 @@ pub(crate) enum TypeMessage { MergeAnnotMismatch, MergeHandlerTypeMismatch, MergeHandlerReturnTypeMustNotBeDependent, + MustCombineRecord(Typed), ProjectionMustBeRecord, ProjectionMissingEntry, Sort, + RecordMismatch(Typed, Typed), RecordTypeDuplicateField, UnionTypeDuplicateField, Unimplemented, |