Type Definition lib_ruby_parser::source::CustomDecoder[−][src]

type CustomDecoder = fn(_: StringPtr, _: List<u8>) -> CustomDecoderResult;

Decoder is what is used if input source has encoding that is not supported out of the box.

Supported encoding are:

  1. UTF-8
  2. ASCII-8BIT (or BINARY, it’s an alias)

So if your source looks like this:

# encoding: koi8-r
\xFF = 42

you need to provide a decoder that converts this byte sequence into UTF-8 bytes.

Decoding function

Takes encoding name and initial input as arguments and returns Ok(decoded) vector of bytes or Err(error) that will be returned in the ParserResult::diagnostics vector.