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141 lines
2.2 KiB
Markdown
141 lines
2.2 KiB
Markdown
This transcript demonstrates that unique types no longer always get a fresh GUID: they share GUIDs with already-saved
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unique types of the same name.
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``` unison
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unique type A = A
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unique type B = B C
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unique type C = C B
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```
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``` ucm
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Loading changes detected in scratch.u.
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I found and typechecked these definitions in scratch.u. If you
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do an `add` or `update`, here's how your codebase would
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change:
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⍟ These new definitions are ok to `add`:
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type A
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type B
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type C
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```
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``` ucm
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scratch/main> add
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⍟ I've added these definitions:
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type A
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type B
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type C
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```
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``` unison
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unique type A = A
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unique type B = B C
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unique type C = C B
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```
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``` ucm
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Loading changes detected in scratch.u.
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I found and typechecked the definitions in scratch.u. This
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file has been previously added to the codebase.
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```
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If the name stays the same, the churn is even prevented if the type is updated and then reverted to the original form.
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``` ucm
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scratch/main> names A
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Type
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Hash: #uj8oalgadr
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Names: A
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Term
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Hash: #uj8oalgadr#0
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Names: A.A
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```
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``` unison
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unique type A = A ()
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```
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``` ucm
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Loading changes detected in scratch.u.
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I found and typechecked these definitions in scratch.u. If you
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do an `add` or `update`, here's how your codebase would
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change:
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⍟ These names already exist. You can `update` them to your
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new definition:
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type A
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```
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``` ucm
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scratch/main> update
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Okay, I'm searching the branch for code that needs to be
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updated...
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Done.
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scratch/main> names A
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Type
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Hash: #ufo5tuc7ho
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Names: A
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Term
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Hash: #ufo5tuc7ho#0
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Names: A.A
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```
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``` unison
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unique type A = A
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```
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``` ucm
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Loading changes detected in scratch.u.
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I found and typechecked these definitions in scratch.u. If you
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do an `add` or `update`, here's how your codebase would
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change:
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⍟ These names already exist. You can `update` them to your
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new definition:
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type A
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```
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Note that `A` is back to its original hash.
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``` ucm
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scratch/main> update
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Okay, I'm searching the branch for code that needs to be
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updated...
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Done.
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scratch/main> names A
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Type
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Hash: #uj8oalgadr
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Names: A
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Term
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Hash: #uj8oalgadr#0
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Names: A.A
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```
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