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Rhai v0.19.16 Release Notes

  • This version adds string interpolation with `... ${ ... } ...` syntax.

    Negative indices for arrays and strings are allowed and now count from the end (-1 = last item/character).

    🐛 Bug fixes

    • Property setter op-assignments now work properly.
    • 🛠 Off-by-one bug in Array::drain method with range is fixed.

    💥 Breaking changes

    • Negative index to an array or string yields the appropriate element/character counting from the end.
    • ModuleResolver trait methods take an additional parameter source_path that contains the path of the current environment. This is to facilitate loading other script files always from the current directory.
    • FileModuleResolver now resolves relative paths under the source path if there is no base path set.
    • FileModuleResolver::base_path now returns Option<&str> which is None if there is no base path set.
    • 📇 Doc-comments now require the metadata feature.

    ✨ Enhancements

    • Array::drain and Array::retain methods with predicate now scan the array in forward order instead of in reverse.

    🆕 New features

    • 👍 String interpolation support is added via the `... ${ ... } ...` syntax.
    • FileModuleResolver resolves relative paths under the parent path (i.e. the path holding the script that does the loading). This allows seamless cross-loading of scripts from a directory hierarchy instead of having all relative paths load from the current working directory.
    • Negative index to an array or string yields the appropriate element/character counting from the end.