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method Decoder.readStr

Reads a text.

Example:

oxl✓ checked in CI
use std.ser { Codec, Encoder, Decoder, Schema, encode, decode, hex, EncodeError, DecodeError }

data Lower {}

impl Codec<str> for Lower {
  static fn encode(x: &str, w: &var Encoder) -> () | EncodeError { w.writeStr(x) }
  static fn decode(r: &var Decoder) -> str | DecodeError {
    match r.readStr() {
      str s => s.lower()
      DecodeError e => fail e
    }
  }
  static fn schema() -> Schema => Schema.of("string")
}

data Wrap {
  @codec(Lower) name: str
}

fn main() io {
  let b = encode(&Wrap{ name: "ABC" })!
  print(decode<Wrap>(&b)!.name)
}
Output
abc
var fn readStr() -> str | DecodeError

Since. 1.0.0-beta

Returns

str

Errors

  • DecodeError @error
  • `DecodeError.Malformed` when the next value is not a text.

Effects

none declared (pure unless the body says otherwise)

Defined in: std/ser/ser.oxl:1640

See also