fn resolve_record + Debug>()

in avro/src/types.rs [1103:1168]
62 lines of code
1 McCabe index (conditional complexity)

    fn resolve_record<S: Borrow<Schema> + Debug>(
        self,
        fields: &[RecordField],
        names: &HashMap<Name, S>,
        enclosing_namespace: &Namespace,
    ) -> Result<Self, Error> {
        let mut items = match self {
            Value::Map(items) => Ok(items),
            Value::Record(fields) => Ok(fields.into_iter().collect::<HashMap<_, _>>()),
            other => Err(Error::GetRecord {
                expected: fields
                    .iter()
                    .map(|field| (field.name.clone(), field.schema.clone().into()))
                    .collect(),
                other,
            }),
        }?;

        let new_fields = fields
            .iter()
            .map(|field| {
                let value = match items.remove(&field.name) {
                    Some(value) => value,
                    None => match field.default {
                        Some(ref value) => match field.schema {
                            Schema::Enum(EnumSchema {
                                ref symbols,
                                ref default,
                                ..
                            }) => Value::from(value.clone()).resolve_enum(
                                symbols,
                                default,
                                &field.default.clone(),
                            )?,
                            Schema::Union(ref union_schema) => {
                                let first = &union_schema.variants()[0];
                                // NOTE: this match exists only to optimize null defaults for large
                                // backward-compatible schemas with many nullable fields
                                match first {
                                    Schema::Null => Value::Union(0, Box::new(Value::Null)),
                                    _ => Value::Union(
                                        0,
                                        Box::new(Value::from(value.clone()).resolve_internal(
                                            first,
                                            names,
                                            enclosing_namespace,
                                            &field.default,
                                        )?),
                                    ),
                                }
                            }
                            _ => Value::from(value.clone()),
                        },
                        None => {
                            return Err(Error::GetField(field.name.clone()));
                        }
                    },
                };
                value
                    .resolve_internal(&field.schema, names, enclosing_namespace, &field.default)
                    .map(|value| (field.name.clone(), value))
            })
            .collect::<Result<Vec<_>, _>>()?;

        Ok(Value::Record(new_fields))
    }