QPQ-AG/sophia
11
0
Fork 0
Code Issues 43 Pull Requests 7 Actions Packages Projects Releases 16 Wiki Activity

Add check for number of type variables in type signature (#512)

Browse Source 
* Fix tvar string generation

* Add check for number of tvars in a single type signature

The number of tvars is limited by serialization (u8) to 255

* Added a comment in CHANGELOG

* Docs fixes

* Adding docs about the limitation on number of tvars

* Limit is 256, not 255

* Update CHANGELOG.md

Co-authored-by: Gaith Hallak <gaithhallak@gmail.com>

---------

Co-authored-by: Gaith Hallak <gaithhallak@gmail.com>
This commit is contained in:
Hans Svensson
2024-08-26 13:34:02 +02:00
committed by GitHub
parent 16308a7840
commit 927cd42592
6 changed files with 98 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/sophia_features.md
+5
View File
@@ -295,6 +295,11 @@ of `A`.
- When a user-defined type `t('a)` is invariant in `'a`, then `t(A)` can never be
a subtype of `t(B)`.
#### Type variable limitation
Because of how FATE represents types as values there is a fixed upper limit (256)
of type variables that can be used in a single type signature.
## Mutable state
Sophia does not have arbitrary mutable state, but only a limited form of state