use crate::{ProtoAccessor, ProtoBuilder, Result, RotoError};
use std::str;

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(i32)]
pub enum Edition {
    EDITIONUNKNOWN, = 0,
    EDITIONLEGACY, = 900,
    EDITIONPROTO2, = 998,
    EDITIONPROTO3, = 999,
    EDITION2023, = 1000,
    EDITION2024, = 1001,
    EDITION2026, = 1002,
    EDITIONUNSTABLE, = 9999,
    EDITION1TESTONLY, = 1,
    EDITION2TESTONLY, = 2,
    EDITION99997TESTONLY, = 99997,
    EDITION99998TESTONLY, = 99998,
    EDITION99999TESTONLY, = 99999,
    EDITIONMAX, = 2147483647,
}

impl Edition {
    pub fn from_i32(value: i32) -> Self {
        match value {
            0 => Edition::EDITIONUNKNOWN,
            900 => Edition::EDITIONLEGACY,
            998 => Edition::EDITIONPROTO2,
            999 => Edition::EDITIONPROTO3,
            1000 => Edition::EDITION2023,
            1001 => Edition::EDITION2024,
            1002 => Edition::EDITION2026,
            9999 => Edition::EDITIONUNSTABLE,
            1 => Edition::EDITION1TESTONLY,
            2 => Edition::EDITION2TESTONLY,
            99997 => Edition::EDITION99997TESTONLY,
            99998 => Edition::EDITION99998TESTONLY,
            99999 => Edition::EDITION99999TESTONLY,
            2147483647 => Edition::EDITIONMAX,
            _ => Edition::Unknown,
        }
    }}
}

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(i32)]
pub enum SymbolVisibility {
    VISIBILITYUNSET, = 0,
    VISIBILITYLOCAL, = 1,
    VISIBILITYEXPORT, = 2,
}

impl SymbolVisibility {
    pub fn from_i32(value: i32) -> Self {
        match value {
            0 => SymbolVisibility::VISIBILITYUNSET,
            1 => SymbolVisibility::VISIBILITYLOCAL,
            2 => SymbolVisibility::VISIBILITYEXPORT,
            _ => SymbolVisibility::Unknown,
        }
    }}
}

pub struct FileDescriptorSet<'a>(ProtoAccessor<'a>);

impl<'a> FileDescriptorSet<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn file(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(1)
    }

}

pub struct FileDescriptorSetBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> FileDescriptorSetBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> FileDescriptorSetBuilder<'_> {
        FileDescriptorSetBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn file(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(1, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct FileDescriptorProto<'a>(ProtoAccessor<'a>);

impl<'a> FileDescriptorProto<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn package(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(2)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn dependency(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(3)
    }

    pub fn public_dependency(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(10)
    }

    pub fn weak_dependency(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(11)
    }

    pub fn option_dependency(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(15)
    }

    pub fn message_type(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(4)
    }

    pub fn enum_type(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(5)
    }

    pub fn service(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(6)
    }

    pub fn extension(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(7)
    }

    pub fn options(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(8)?;
        Ok(bytes)
    }

    pub fn source_code_info(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(9)?;
        Ok(bytes)
    }

    pub fn syntax(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(12)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn edition(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(14)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct FileDescriptorProtoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> FileDescriptorProtoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> FileDescriptorProtoBuilder<'_> {
        FileDescriptorProtoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn package(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(2, value)?;
        Ok(self)
    }

    pub fn dependency(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(3, value)?;
        Ok(self)
    }

    pub fn public_dependency(mut self, value: i32) -> Result<Self> {
        self.builder.write_int32(10, value)?;
        Ok(self)
    }

    pub fn weak_dependency(mut self, value: i32) -> Result<Self> {
        self.builder.write_int32(11, value)?;
        Ok(self)
    }

    pub fn option_dependency(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(15, value)?;
        Ok(self)
    }

    pub fn message_type(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(4, value)?;
        Ok(self)
    }

    pub fn enum_type(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(5, value)?;
        Ok(self)
    }

    pub fn service(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(6, value)?;
        Ok(self)
    }

    pub fn extension(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(7, value)?;
        Ok(self)
    }

    pub fn options(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(8, value)?;
        Ok(self)
    }

    pub fn source_code_info(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(9, value)?;
        Ok(self)
    }

    pub fn syntax(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(12, value)?;
        Ok(self)
    }

    pub fn edition(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(14, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct DescriptorProto<'a>(ProtoAccessor<'a>);

impl<'a> DescriptorProto<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn field(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(2)
    }

    pub fn extension(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(6)
    }

    pub fn nested_type(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(3)
    }

    pub fn enum_type(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(4)
    }

    pub fn extension_range(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(5)
    }

    pub fn oneof_decl(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(8)
    }

    pub fn options(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(7)?;
        Ok(bytes)
    }

    pub fn reserved_range(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(9)
    }

    pub fn reserved_name(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(10)
    }

    pub fn visibility(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(11)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct DescriptorProtoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> DescriptorProtoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> DescriptorProtoBuilder<'_> {
        DescriptorProtoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn field(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(2, value)?;
        Ok(self)
    }

    pub fn extension(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(6, value)?;
        Ok(self)
    }

    pub fn nested_type(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(3, value)?;
        Ok(self)
    }

    pub fn enum_type(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(4, value)?;
        Ok(self)
    }

    pub fn extension_range(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(5, value)?;
        Ok(self)
    }

    pub fn oneof_decl(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(8, value)?;
        Ok(self)
    }

    pub fn options(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(7, value)?;
        Ok(self)
    }

    pub fn reserved_range(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(9, value)?;
        Ok(self)
    }

    pub fn reserved_name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(10, value)?;
        Ok(self)
    }

    pub fn visibility(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(11, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct ExtensionRangeOptions<'a>(ProtoAccessor<'a>);

impl<'a> ExtensionRangeOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

    pub fn declaration(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(2)
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(50)?;
        Ok(bytes)
    }

    pub fn verification(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(3)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct ExtensionRangeOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> ExtensionRangeOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> ExtensionRangeOptionsBuilder<'_> {
        ExtensionRangeOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn declaration(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(2, value)?;
        Ok(self)
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(50, value)?;
        Ok(self)
    }

    pub fn verification(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(3, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct FieldDescriptorProto<'a>(ProtoAccessor<'a>);

impl<'a> FieldDescriptorProto<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn number(&self) -> Result<i32> {
        let (bytes, _) = self.0.get_value(3)?;
        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn label(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(4)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn type(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(5)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn type_name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(6)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn extendee(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(2)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn default_value(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(7)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn oneof_index(&self) -> Result<i32> {
        let (bytes, _) = self.0.get_value(9)?;
        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn json_name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(10)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn options(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(8)?;
        Ok(bytes)
    }

    pub fn proto3_optional(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(17)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct FieldDescriptorProtoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> FieldDescriptorProtoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> FieldDescriptorProtoBuilder<'_> {
        FieldDescriptorProtoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn number(mut self, value: i32) -> Result<Self> {
        self.builder.write_int32(3, value)?;
        Ok(self)
    }

    pub fn label(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(4, value)?;
        Ok(self)
    }

    pub fn type(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(5, value)?;
        Ok(self)
    }

    pub fn type_name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(6, value)?;
        Ok(self)
    }

    pub fn extendee(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(2, value)?;
        Ok(self)
    }

    pub fn default_value(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(7, value)?;
        Ok(self)
    }

    pub fn oneof_index(mut self, value: i32) -> Result<Self> {
        self.builder.write_int32(9, value)?;
        Ok(self)
    }

    pub fn json_name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(10, value)?;
        Ok(self)
    }

    pub fn options(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(8, value)?;
        Ok(self)
    }

    pub fn proto3_optional(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(17, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct OneofDescriptorProto<'a>(ProtoAccessor<'a>);

impl<'a> OneofDescriptorProto<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn options(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(2)?;
        Ok(bytes)
    }

}

pub struct OneofDescriptorProtoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> OneofDescriptorProtoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> OneofDescriptorProtoBuilder<'_> {
        OneofDescriptorProtoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn options(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(2, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct EnumDescriptorProto<'a>(ProtoAccessor<'a>);

impl<'a> EnumDescriptorProto<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn value(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(2)
    }

    pub fn options(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(3)?;
        Ok(bytes)
    }

    pub fn reserved_range(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(4)
    }

    pub fn reserved_name(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(5)
    }

    pub fn visibility(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(6)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct EnumDescriptorProtoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> EnumDescriptorProtoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> EnumDescriptorProtoBuilder<'_> {
        EnumDescriptorProtoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn value(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(2, value)?;
        Ok(self)
    }

    pub fn options(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(3, value)?;
        Ok(self)
    }

    pub fn reserved_range(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(4, value)?;
        Ok(self)
    }

    pub fn reserved_name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(5, value)?;
        Ok(self)
    }

    pub fn visibility(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(6, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct EnumValueDescriptorProto<'a>(ProtoAccessor<'a>);

impl<'a> EnumValueDescriptorProto<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn number(&self) -> Result<i32> {
        let (bytes, _) = self.0.get_value(2)?;
        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn options(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(3)?;
        Ok(bytes)
    }

}

pub struct EnumValueDescriptorProtoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> EnumValueDescriptorProtoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> EnumValueDescriptorProtoBuilder<'_> {
        EnumValueDescriptorProtoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn number(mut self, value: i32) -> Result<Self> {
        self.builder.write_int32(2, value)?;
        Ok(self)
    }

    pub fn options(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(3, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct ServiceDescriptorProto<'a>(ProtoAccessor<'a>);

impl<'a> ServiceDescriptorProto<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn method(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(2)
    }

    pub fn options(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(3)?;
        Ok(bytes)
    }

}

pub struct ServiceDescriptorProtoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> ServiceDescriptorProtoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> ServiceDescriptorProtoBuilder<'_> {
        ServiceDescriptorProtoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn method(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(2, value)?;
        Ok(self)
    }

    pub fn options(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(3, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct MethodDescriptorProto<'a>(ProtoAccessor<'a>);

impl<'a> MethodDescriptorProto<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn input_type(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(2)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn output_type(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(3)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn options(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(4)?;
        Ok(bytes)
    }

    pub fn client_streaming(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(5)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn server_streaming(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(6)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct MethodDescriptorProtoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> MethodDescriptorProtoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> MethodDescriptorProtoBuilder<'_> {
        MethodDescriptorProtoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn input_type(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(2, value)?;
        Ok(self)
    }

    pub fn output_type(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(3, value)?;
        Ok(self)
    }

    pub fn options(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(4, value)?;
        Ok(self)
    }

    pub fn client_streaming(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(5, value)?;
        Ok(self)
    }

    pub fn server_streaming(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(6, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct FileOptions<'a>(ProtoAccessor<'a>);

impl<'a> FileOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn java_package(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(1)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn java_outer_classname(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(8)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn java_multiple_files(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(10)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn java_generate_equals_and_hash(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(20)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn java_string_check_utf8(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(27)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn optimize_for(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(9)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn go_package(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(11)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn cc_generic_services(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(16)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn java_generic_services(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(17)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn py_generic_services(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(18)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn deprecated(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(23)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn cc_enable_arenas(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(31)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn objc_class_prefix(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(36)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn csharp_namespace(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(37)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn swift_prefix(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(39)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn php_class_prefix(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(40)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn php_namespace(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(41)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn php_metadata_namespace(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(44)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn ruby_package(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(45)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(50)?;
        Ok(bytes)
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

}

pub struct FileOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> FileOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> FileOptionsBuilder<'_> {
        FileOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn java_package(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(1, value)?;
        Ok(self)
    }

    pub fn java_outer_classname(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(8, value)?;
        Ok(self)
    }

    pub fn java_multiple_files(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(10, value)?;
        Ok(self)
    }

    pub fn java_generate_equals_and_hash(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(20, value)?;
        Ok(self)
    }

    pub fn java_string_check_utf8(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(27, value)?;
        Ok(self)
    }

    pub fn optimize_for(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(9, value)?;
        Ok(self)
    }

    pub fn go_package(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(11, value)?;
        Ok(self)
    }

    pub fn cc_generic_services(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(16, value)?;
        Ok(self)
    }

    pub fn java_generic_services(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(17, value)?;
        Ok(self)
    }

    pub fn py_generic_services(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(18, value)?;
        Ok(self)
    }

    pub fn deprecated(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(23, value)?;
        Ok(self)
    }

    pub fn cc_enable_arenas(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(31, value)?;
        Ok(self)
    }

    pub fn objc_class_prefix(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(36, value)?;
        Ok(self)
    }

    pub fn csharp_namespace(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(37, value)?;
        Ok(self)
    }

    pub fn swift_prefix(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(39, value)?;
        Ok(self)
    }

    pub fn php_class_prefix(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(40, value)?;
        Ok(self)
    }

    pub fn php_namespace(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(41, value)?;
        Ok(self)
    }

    pub fn php_metadata_namespace(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(44, value)?;
        Ok(self)
    }

    pub fn ruby_package(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(45, value)?;
        Ok(self)
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(50, value)?;
        Ok(self)
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct MessageOptions<'a>(ProtoAccessor<'a>);

impl<'a> MessageOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn message_set_wire_format(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(1)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn no_standard_descriptor_accessor(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(2)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn deprecated(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(3)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn map_entry(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(7)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn deprecated_legacy_json_field_conflicts(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(11)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(12)?;
        Ok(bytes)
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

}

pub struct MessageOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> MessageOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> MessageOptionsBuilder<'_> {
        MessageOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn message_set_wire_format(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(1, value)?;
        Ok(self)
    }

    pub fn no_standard_descriptor_accessor(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(2, value)?;
        Ok(self)
    }

    pub fn deprecated(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(3, value)?;
        Ok(self)
    }

    pub fn map_entry(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(7, value)?;
        Ok(self)
    }

    pub fn deprecated_legacy_json_field_conflicts(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(11, value)?;
        Ok(self)
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(12, value)?;
        Ok(self)
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct FieldOptions<'a>(ProtoAccessor<'a>);

impl<'a> FieldOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn ctype(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(1)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn packed(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(2)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn jstype(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(6)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn lazy(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(5)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn unverified_lazy(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(15)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn deprecated(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(3)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn weak(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(10)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn debug_redact(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(16)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn retention(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(17)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn targets(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(19)
    }

    pub fn edition_defaults(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(20)
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(21)?;
        Ok(bytes)
    }

    pub fn feature_support(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(22)?;
        Ok(bytes)
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

}

pub struct FieldOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> FieldOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> FieldOptionsBuilder<'_> {
        FieldOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn ctype(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(1, value)?;
        Ok(self)
    }

    pub fn packed(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(2, value)?;
        Ok(self)
    }

    pub fn jstype(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(6, value)?;
        Ok(self)
    }

    pub fn lazy(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(5, value)?;
        Ok(self)
    }

    pub fn unverified_lazy(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(15, value)?;
        Ok(self)
    }

    pub fn deprecated(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(3, value)?;
        Ok(self)
    }

    pub fn weak(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(10, value)?;
        Ok(self)
    }

    pub fn debug_redact(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(16, value)?;
        Ok(self)
    }

    pub fn retention(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(17, value)?;
        Ok(self)
    }

    pub fn targets(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(19, value)?;
        Ok(self)
    }

    pub fn edition_defaults(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(20, value)?;
        Ok(self)
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(21, value)?;
        Ok(self)
    }

    pub fn feature_support(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(22, value)?;
        Ok(self)
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct OneofOptions<'a>(ProtoAccessor<'a>);

impl<'a> OneofOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(1)?;
        Ok(bytes)
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

}

pub struct OneofOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> OneofOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> OneofOptionsBuilder<'_> {
        OneofOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(1, value)?;
        Ok(self)
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct EnumOptions<'a>(ProtoAccessor<'a>);

impl<'a> EnumOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn allow_alias(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(2)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn deprecated(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(3)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn deprecated_legacy_json_field_conflicts(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(6)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(7)?;
        Ok(bytes)
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

}

pub struct EnumOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> EnumOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> EnumOptionsBuilder<'_> {
        EnumOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn allow_alias(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(2, value)?;
        Ok(self)
    }

    pub fn deprecated(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(3, value)?;
        Ok(self)
    }

    pub fn deprecated_legacy_json_field_conflicts(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(6, value)?;
        Ok(self)
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(7, value)?;
        Ok(self)
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct EnumValueOptions<'a>(ProtoAccessor<'a>);

impl<'a> EnumValueOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn deprecated(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(1)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(2)?;
        Ok(bytes)
    }

    pub fn debug_redact(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(3)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn feature_support(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(4)?;
        Ok(bytes)
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

}

pub struct EnumValueOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> EnumValueOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> EnumValueOptionsBuilder<'_> {
        EnumValueOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn deprecated(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(1, value)?;
        Ok(self)
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(2, value)?;
        Ok(self)
    }

    pub fn debug_redact(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(3, value)?;
        Ok(self)
    }

    pub fn feature_support(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(4, value)?;
        Ok(self)
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct ServiceOptions<'a>(ProtoAccessor<'a>);

impl<'a> ServiceOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(34)?;
        Ok(bytes)
    }

    pub fn deprecated(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(33)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

}

pub struct ServiceOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> ServiceOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> ServiceOptionsBuilder<'_> {
        ServiceOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(34, value)?;
        Ok(self)
    }

    pub fn deprecated(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(33, value)?;
        Ok(self)
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct MethodOptions<'a>(ProtoAccessor<'a>);

impl<'a> MethodOptions<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn deprecated(&self) -> Result<bool> {
        let (bytes, _) = self.0.get_value(33)?;
        crate::read_varint(bytes).map(|(v, _)| v != 0).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn idempotency_level(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(34)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn features(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(35)?;
        Ok(bytes)
    }

    pub fn uninterpreted_option(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(999)
    }

}

pub struct MethodOptionsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> MethodOptionsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> MethodOptionsBuilder<'_> {
        MethodOptionsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn deprecated(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(33, value)?;
        Ok(self)
    }

    pub fn idempotency_level(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(34, value)?;
        Ok(self)
    }

    pub fn features(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(35, value)?;
        Ok(self)
    }

    pub fn uninterpreted_option(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(999, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct UninterpretedOption<'a>(ProtoAccessor<'a>);

impl<'a> UninterpretedOption<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn name(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(2)
    }

    pub fn identifier_value(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(3)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn positive_int_value(&self) -> Result<u32> {
        let (bytes, _) = self.0.get_value(4)?;
        crate::read_varint(bytes).map(|(v, _)| v as u32).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn negative_int_value(&self) -> Result<i32> {
        let (bytes, _) = self.0.get_value(5)?;
        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn double_value(&self) -> Result<f64> {
        let (bytes, _) = self.0.get_value(6)?;
        f64::from_le_bytes(bytes.try_into().map_err(|_| RotoError::WireFormatViolation)?)
    }

    pub fn string_value(&self) -> Result<&'a [u8]> {
        let (bytes, _) = self.0.get_value(7)?;
        Ok(bytes)
    }

    pub fn aggregate_value(&self) -> Result<&'a str> {
        let (bytes, _) = self.0.get_value(8)?;
        str::from_utf8(bytes).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct UninterpretedOptionBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> UninterpretedOptionBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> UninterpretedOptionBuilder<'_> {
        UninterpretedOptionBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn name(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(2, value)?;
        Ok(self)
    }

    pub fn identifier_value(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(3, value)?;
        Ok(self)
    }

    pub fn positive_int_value(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(4, value)?;
        Ok(self)
    }

    pub fn negative_int_value(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(5, value)?;
        Ok(self)
    }

    pub fn double_value(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(6, value)?;
        Ok(self)
    }

    pub fn string_value(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(7, value)?;
        Ok(self)
    }

    pub fn aggregate_value(mut self, value: &str) -> Result<Self> {
        self.builder.write_string(8, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct FeatureSet<'a>(ProtoAccessor<'a>);

impl<'a> FeatureSet<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn field_presence(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(1)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn enum_type(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(2)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn repeated_field_encoding(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(3)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn utf8_validation(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(4)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn message_encoding(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(5)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn json_format(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(6)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn enforce_naming_style(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(7)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn default_symbol_visibility(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(8)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn enforce_proto_limits(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(9)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct FeatureSetBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> FeatureSetBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> FeatureSetBuilder<'_> {
        FeatureSetBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn field_presence(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(1, value)?;
        Ok(self)
    }

    pub fn enum_type(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(2, value)?;
        Ok(self)
    }

    pub fn repeated_field_encoding(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(3, value)?;
        Ok(self)
    }

    pub fn utf8_validation(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(4, value)?;
        Ok(self)
    }

    pub fn message_encoding(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(5, value)?;
        Ok(self)
    }

    pub fn json_format(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(6, value)?;
        Ok(self)
    }

    pub fn enforce_naming_style(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(7, value)?;
        Ok(self)
    }

    pub fn default_symbol_visibility(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(8, value)?;
        Ok(self)
    }

    pub fn enforce_proto_limits(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(9, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct FeatureSetDefaults<'a>(ProtoAccessor<'a>);

impl<'a> FeatureSetDefaults<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn defaults(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(1)
    }

    pub fn minimum_edition(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(4)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

    pub fn maximum_edition(&self) -> Result<u64> {
        let (bytes, _) = self.0.get_value(5)?;
        crate::read_varint(bytes).map(|(v, _)| v as u64).map_err(|_| RotoError::WireFormatViolation)
    }

}

pub struct FeatureSetDefaultsBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> FeatureSetDefaultsBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> FeatureSetDefaultsBuilder<'_> {
        FeatureSetDefaultsBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn defaults(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(1, value)?;
        Ok(self)
    }

    pub fn minimum_edition(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(4, value)?;
        Ok(self)
    }

    pub fn maximum_edition(mut self, value: i64) -> Result<Self> {
        self.builder.write_varint(5, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct SourceCodeInfo<'a>(ProtoAccessor<'a>);

impl<'a> SourceCodeInfo<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn location(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(1)
    }

}

pub struct SourceCodeInfoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> SourceCodeInfoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> SourceCodeInfoBuilder<'_> {
        SourceCodeInfoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn location(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(1, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}

pub struct GeneratedCodeInfo<'a>(ProtoAccessor<'a>);

impl<'a> GeneratedCodeInfo<'a> {
    pub fn new(data: &'a [u8]) -> Result<Self> {
        Ok(Self(ProtoAccessor::new(data)?))
    }

    pub fn annotation(&self) -> crate::RepeatedFieldIterator<'a> {
        self.0.iter_repeated(1)
    }

}

pub struct GeneratedCodeInfoBuilder<'b> {
    builder: ProtoBuilder<'b>,
}

impl<'b> GeneratedCodeInfoBuilder<'b> {
    pub fn builder(buf: &mut [u8]) -> GeneratedCodeInfoBuilder<'_> {
        GeneratedCodeInfoBuilder {
            builder: ProtoBuilder::new(buf),
        }
    }

    pub fn annotation(mut self, value: &[u8]) -> Result<Self> {
        self.builder.write_bytes(1, value)?;
        Ok(self)
    }

    pub fn finish(self) -> Result<&'b mut [u8]> {
        self.builder.finish()
    }
}