# warnings (未実装) [![badge](https://img.shields.io/endpoint.svg?url=https%3A%2F%2Fgezf7g7pd5.execute-api.ap-northeast-1.amazonaws.com%2Fdefault%2Fsource_up_to_date%3Fowner%3Derg-lang%26repos%3Derg%26ref%3Dmain%26path%3Ddoc/EN/compiler/TODO_warn.md%26commit_hash%3Dd15cbbf7b33df0f78a575cff9679d84c36ea3ab1)](https://gezf7g7pd5.execute-api.ap-northeast-1.amazonaws.com/default/source_up_to_date?owner=erg-lang&repos=erg&ref=main&path=doc/EN/compiler/TODO_warn.md&commit_hash=d15cbbf7b33df0f78a575cff9679d84c36ea3ab1) * `t = {(record type)}` => `T = {(record type)}`? (only types defined as constants can be used for type specification) * `{I: Int | ...}!` => `{I: Int! | ...}` * `return x`(`x != ()`) in for/while block => `f::return` (outer block)?