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Implement variable resolver.

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Stephen Chung
2020-10-11 21:58:11 +08:00
parent 9d93dac8e7
commit fd5a932611
18 changed files with 511 additions and 237 deletions
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RELEASES.md
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@@ -16,10 +16,12 @@ Breaking changes
* `Scope::iter_raw` returns an iterator with an additional field indicating whether the variable is constant or not.
* `rhai::ser` and `rhai::de` namespaces are merged into `rhai::serde`.
* New reserved symbols: `++`, `--`, `..`, `...`.
* Callback signature for custom syntax implementation function is changed to allow for more flexibility.
New features
------------
* New `Engine::on_var` to register a _variable resolver_.
* `const` statements can now take any expression (or none at all) instead of only constant values.
* `OptimizationLevel::Simple` now eagerly evaluates built-in binary operators of primary types (if not overloaded).
* Added `is_def_var()` to detect if variable is defined, and `is_def_fn()` to detect if script function is defined.