bytes
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Expose UTF-8 validated string type
bytes
has become a little bit of a de facto standard for low/zero-copy techniques, with authors of some popular crates being comfortable with exposing bytes
types in their interfaces. In some cases, those crates would benefit from a bytes string wrapper to enable zero-copy string handling, but they don't support such handling because bytes
doesn't and they don't want to include another crate like bytestring
, which isn't a de facto standard as of now, in their interfaces.
For example, prost
, which implements conversion between Rust types and protocol buffers, supports using Bytes
instead of Vec<u8>
to back protobuf bytes fields, but it doesn't a similar alternative for String
, despite it being a requested feature (tokio-rs/prost#752), in part because bytes
doesn't have a string wrapper type.
Would the bytes
maintainers be open to exposing such a type, along the lines of the one described in #373, in order to better enable these use cases in the ecosystem?