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make_apply_path_mapping_fn

openjd_expr::functions::path

Function make_apply_path_mapping_fn 

Source 
pub fn make_apply_path_mapping_fn(
    rules: Arc<Vec<PathMappingRule>>,
) -> impl Fn(&mut dyn EvalContext, &[ExprValue]) -> Result<ExprValue, ExpressionError> + Send + Sync + 'static
Expand description

Build a closure for apply_path_mapping that captures the given rules.

The rules are stored in an Arc so many FunctionLibrary clones can share them cheaply. This factory is the only way to produce an apply_path_mapping implementation; the host crate passes its rules at library-construction time rather than plumbing them through the evaluator on every call.