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Allow pure setters by making constant Dynamic internally constant as well.

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Stephen Chung
2021-05-15 09:45:40 +08:00
parent 4f14fd55f5
commit 60dc41bfac
16 changed files with 138 additions and 163 deletions
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CHANGELOG.md
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@@ -9,6 +9,7 @@ Breaking changes
* `Engine::disable_doc_comments` is removed because doc-comments are now placed under the `metadata` feature flag.
* Registering a custom syntax now only requires specifying whether the `Scope` is adjusted (i.e. whether variables are added or removed). There is no need to specify the number of variables added/removed.
* Assigning to a property of a constant is now allowed and no longer raise an `EvalAltResult::ErrorAssignmentToConstant` error. This is to facilitate the Singleton pattern. Registered setter functions are automatically guarded against setters calling on constants and will continue to raise errors unless the `pure` attribute is present (for plugins).
New features
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@@ -22,7 +23,7 @@ Enhancements
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* Registering a custom syntax now only requires specifying whether the `Scope` is adjusted (i.e. whether variables are added or removed). This allows more flexibility for cases where the number of new variables declared depends on internal logic.
* Putting a `pure` attribute on a plugin property setter now raises a syntax error.
* Putting a `pure` attribute on a plugin property/index setter now enables it to be used on constants.
Version 0.20.1