tiny.preserves.preservePattern

1/// Reads a pattern written as records and returns it as pattern values. Code that holds a pattern2/// parsed as records calls it for the pattern values of `Value`. The symbol `_` and the record3/// `<_>` become a discard. `<bind P>` becomes a capture of `P`. `<lit V>` becomes `V` itself.4/// `<group <rec L> {0: P0 1: P1}>` becomes a record labeled `L` with its fields in key order.5/// `<group <arr> {...}>` becomes a sequence the same way, and `<group <dict> {K: P}>` becomes a6/// dictionary. Other records, sequences and dictionaries are converted item by item, and every7/// other value comes back unchanged. The result shares atoms, `<lit>` values, labels and dictionary8/// keys with `pattern`. On a failed allocation the call returns the unconverted input in its place9/// and reports nothing, and cells allocated before the failure are never freed.10/// `preservesToPattern` does the same conversion and reports allocation failure.11pub fn preservePattern(alloc: std.mem.Allocator, pattern: AnyValue) AnyValue {12    return any_conversions.preservePattern(alloc, pattern);13}

1pub const preservePattern = any.preservePattern;