Function source 

pub fn source(
    ast: &Ast,
    language: Language,
    key: LayoutKey,
) -> Result<String, GenerateError>

The declarations of ast and its codec, as source in language: the encoder crate::emit::encode::codec builds, the Table 9 defaulters its decoder calls, and the decoder crate::emit::decode::decoder builds — every one of them, rendered through the same materialiser and renderer declarations uses.

Every type the model declares, not one root. codec and decoder already walk and dedupe by name over the whole model — the same two functions encode_c::c_codec and decode_c::c_decoder bind for the C column, which crates/security-rtps builds a full binding through. A single --type root, the shape every wireprobe-zerodds-<lang>-gen takes, is a probe’s question: it exists so a byte comparison has one sample to run, and a generated application has no such reason to stop at the first struct, union or valuetype the model declares.

Errors

GenerateError: GenerateError::Rules and GenerateError::NoForm as declarations; GenerateError::Codec when the layout cannot be planned or a construct has no writer or reader.