[peggen-core]

Two-phase Parsing w/o Memorization

In most PEG-based approaches, the target type is constructed during parsing. However, some of them might be discarded in the near future, causing unwanted allocation/deallocation. In this crate, we seperate parsing and type construction into two phases. In the first phase, syntax items are represented as tags, which are storage-agnostic. Then, an analysis pass run over the tags and generate a final result.