crabka-protocol 0.3.1

Apache Kafka wire-protocol codec (4.3.0), with typed RecordBatch and zero-copy borrowed decode
Documentation 
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// AUTO-GENERATED by crabka-protocol-codegen against a9ce3221537b8653448750697915607dc7936cf3. Do not edit.

use bytes::{Buf, BufMut};

use crate::primitives::fixed::{get_i32, put_i32};
use crate::tagged_fields::{WriteTaggedFields, read_tagged_fields, tagged_fields_len};
use crate::{Decode, Encode, ProtocolError, UnknownTaggedFields};
pub const MIN_VERSION: i16 = 0;
pub const MAX_VERSION: i16 = 1;
pub const FLEXIBLE_MIN: i16 = 1;

#[inline]
fn is_flexible(version: i16) -> bool {
    version >= FLEXIBLE_MIN
}

#[derive(Debug, Clone, PartialEq, Eq, Default)]
pub struct ResponseHeader {
    pub correlation_id: i32,
    pub unknown_tagged_fields: UnknownTaggedFields,
}
impl Encode for ResponseHeader {
    fn encode<B: BufMut>(&self, buf: &mut B, version: i16) -> Result<(), ProtocolError> {
        if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
            return Err(ProtocolError::SchemaMismatch(
                "ResponseHeader version out of range",
            ));
        }
        let flex = is_flexible(version);
        if version >= 0 {
            put_i32(buf, self.correlation_id);
        }
        if flex {
            let tagged = WriteTaggedFields::new();
            tagged.write(buf, &self.unknown_tagged_fields);
        }
        Ok(())
    }
    fn encoded_len(&self, version: i16) -> usize {
        let flex = is_flexible(version);
        let mut n: usize = 0;
        if version >= 0 {
            n += 4;
        }
        if flex {
            let known_pairs: Vec<(u32, usize)> = Vec::new();
            n += tagged_fields_len(&known_pairs, &self.unknown_tagged_fields);
        }
        n
    }
}
impl Decode<'_> for ResponseHeader {
    fn decode<B: Buf>(buf: &mut B, version: i16) -> Result<Self, ProtocolError> {
        if !(MIN_VERSION..=MAX_VERSION).contains(&version) {
            return Err(ProtocolError::SchemaMismatch(
                "ResponseHeader version out of range",
            ));
        }
        let flex = is_flexible(version);
        let mut out = Self::default();
        if version >= 0 {
            out.correlation_id = get_i32(buf)?;
        }
        if flex {
            out.unknown_tagged_fields = read_tagged_fields(buf, |_tag, _payload| Ok(false))?;
        }
        Ok(out)
    }
}
#[cfg(test)]
impl ResponseHeader {
    #[must_use]
    pub fn populated(version: i16) -> Self {
        let mut m = Self::default();
        if version >= 0 {
            m.correlation_id = 1i32;
        }
        m
    }
}

/// Default JSON payload matching `Self::default()` for JVM oracle differential testing.
/// Only includes fields valid for the given version.
#[must_use]
#[allow(unused_comparisons)]
pub fn default_json(version: i16) -> ::serde_json::Value {
    let mut obj = ::serde_json::Map::new();
    obj.insert("correlationId".to_string(), ::serde_json::json!(0));
    ::serde_json::Value::Object(obj)
}