shrike 0.1.1

AT Protocol library for Rust
Documentation 
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// Code generated by lexgen. DO NOT EDIT.

/// NSID for the LexiconSchema record.
pub const NSID_LEXICON_SCHEMA: &str = "com.atproto.lexicon.schema";

/// LexiconSchema — Representation of Lexicon schemas themselves, when published as atproto records. Note that the schema language is not defined in Lexicon; this meta schema currently only includes a single version field ('lexicon'). See the atproto specifications for description of the other expected top-level fields ('id', 'defs', etc).
#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct LexiconSchema {
    /// Indicates the 'version' of the Lexicon language. Must be '1' for the current atproto/Lexicon schema system.
    pub lexicon: i64,
    /// Extra fields not defined in the schema (JSON).
    #[serde(flatten)]
    pub extra: std::collections::HashMap<String, serde_json::Value>,
    /// Extra fields not defined in the schema (CBOR).
    #[serde(skip)]
    pub extra_cbor: Vec<(String, Vec<u8>)>,
}

impl LexiconSchema {
    pub fn to_cbor(&self) -> Result<Vec<u8>, crate::cbor::CborError> {
        let mut buf = Vec::new();
        self.encode_cbor(&mut buf)?;
        Ok(buf)
    }

    pub fn encode_cbor(&self, buf: &mut Vec<u8>) -> Result<(), crate::cbor::CborError> {
        if self.extra_cbor.is_empty() {
            // Fast path: no extra fields to merge.
            let count = 1u64;
            crate::cbor::Encoder::new(&mut *buf).encode_map_header(count)?;
            crate::cbor::Encoder::new(&mut *buf).encode_text("lexicon")?;
            crate::cbor::Encoder::new(&mut *buf).encode_i64(self.lexicon)?;
        } else {
            // Slow path: merge known fields with extra_cbor, sort, encode.
            let mut pairs: Vec<(&str, Vec<u8>)> = Vec::new();
            {
                let mut vbuf = Vec::new();
                crate::cbor::Encoder::new(&mut vbuf).encode_i64(self.lexicon)?;
                pairs.push(("lexicon", vbuf));
            }
            for (k, v) in &self.extra_cbor {
                pairs.push((k.as_str(), v.clone()));
            }
            pairs.sort_by(|a, b| crate::cbor::cbor_key_cmp(a.0, b.0));
            crate::cbor::Encoder::new(&mut *buf).encode_map_header(pairs.len() as u64)?;
            for (k, v) in &pairs {
                crate::cbor::Encoder::new(&mut *buf).encode_text(k)?;
                buf.extend_from_slice(v);
            }
        }
        Ok(())
    }

    pub fn from_cbor(data: &[u8]) -> Result<Self, crate::cbor::CborError> {
        let mut decoder = crate::cbor::Decoder::new(data);
        let result = Self::decode_cbor(&mut decoder)?;
        if !decoder.is_empty() {
            return Err(crate::cbor::CborError::InvalidCbor("trailing data".into()));
        }
        Ok(result)
    }

    pub fn decode_cbor(decoder: &mut crate::cbor::Decoder) -> Result<Self, crate::cbor::CborError> {
        let val = decoder.decode()?;
        let entries = match val {
            crate::cbor::Value::Map(entries) => entries,
            _ => return Err(crate::cbor::CborError::InvalidCbor("expected map".into())),
        };

        let mut field_lexicon: Option<i64> = None;
        let mut extra_cbor: Vec<(String, Vec<u8>)> = Vec::new();

        for (key, value) in entries {
            match key {
                "lexicon" => match value {
                    crate::cbor::Value::Unsigned(n) => {
                        field_lexicon = Some(n as i64);
                    }
                    crate::cbor::Value::Signed(n) => {
                        field_lexicon = Some(n);
                    }
                    _ => {
                        return Err(crate::cbor::CborError::InvalidCbor(
                            "expected integer".into(),
                        ));
                    }
                },
                _ => {
                    let raw = crate::cbor::encode_value(&value)?;
                    extra_cbor.push((key.to_string(), raw));
                }
            }
        }

        Ok(LexiconSchema {
            lexicon: field_lexicon.ok_or_else(|| {
                crate::cbor::CborError::InvalidCbor("missing required field 'lexicon'".into())
            })?,
            extra: std::collections::HashMap::new(),
            extra_cbor,
        })
    }
}