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1.7 KiB
1.7 KiB
Regression test for updates which conflict with an existing data constructor
https://github.com/unisonweb/unison/issues/2786
First we add a sum-type to the codebase.
structural type X = x
Loading changes detected in scratch.u.
I found and typechecked these definitions in scratch.u. If you
do an `add` or `update`, here's how your codebase would
change:
⍟ These new definitions are ok to `add`:
structural type X
(also named lib.builtins.Unit)
scratch/main> add
⍟ I've added these definitions:
structural type X
(also named lib.builtins.Unit)
Now we update the type, changing the name of the constructors, but, we simultaneously add a new top-level term with the same name as the old constructor.
structural type X = y | z
X.x : Text
X.x = "some text that's not in the codebase"
dependsOnX = Text.size X.x
Loading changes detected in scratch.u.
I found and typechecked these definitions in scratch.u. If you
do an `add` or `update`, here's how your codebase would
change:
⍟ These new definitions are ok to `add`:
X.x : Text
dependsOnX : Nat
⍟ These names already exist. You can `update` them to your
new definition:
structural type X
(The old definition is also named lib.builtins.Unit.)
This update should succeed since the conflicted constructor is removed in the same update that the new term is being added.
scratch/main> update.old
⍟ I've added these definitions:
X.x : Text
dependsOnX : Nat
⍟ I've updated these names to your new definition:
structural type X
(The old definition was also named lib.builtins.Unit.)