Regenerate protobuf files

benches/src/google/protobuf/compiler/plugin.rs

@@ -1,13 +1,13 @@
 // @generated by protoc-gen-roto — do not edit
-#![allow(unused_imports)]
+#[allow(unused_imports)]
-
+use roto_runtime::{ProtoAccessor, ProtoBuilder, Result, RotoError, read_varint, RepeatedFieldIterator, RotoMessage};
-use crate::{ProtoAccessor, ProtoBuilder, Result, RotoError, read_varint, RepeatedFieldIterator};
+use core::str;
-use std::str;
+#[cfg(feature = "alloc")]
-
+use bytes::{Bytes, BytesMut, Buf, BufMut};
 use crate::google::protobuf::descriptor;
 
 pub struct Version<'a> {
-    accessor: crate::ProtoAccessor<'a>,
+    accessor: roto_runtime::ProtoAccessor<'a>,
     major_offset: Option<usize>,
     minor_offset: Option<usize>,
     patch_offset: Option<usize>,
@@ -15,8 +15,8 @@ pub struct Version<'a> {
 }
 
 impl<'a> Version<'a> {
-    pub fn new(data: &'a [u8]) -> crate::Result<Self> {
+    pub fn new(data: &'a [u8]) -> roto_runtime::Result<Self> {
-        let accessor = crate::ProtoAccessor::new(data)?;
+        let accessor = roto_runtime::ProtoAccessor::new(data)?;
         let mut major_offset = None;
         let mut minor_offset = None;
         let mut patch_offset = None;
@@ -38,38 +38,62 @@ suffix_offset,
         })
     }
 
-    pub fn major(&self) -> crate::Result<i32> {
+    pub fn major(&self) -> roto_runtime::Result<i32> {
-        let offset = self.major_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        let offset = self.major_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| crate::RotoError::WireFormatViolation)
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
-    pub fn minor(&self) -> crate::Result<i32> {
+    pub fn major_or_default(&self) -> roto_runtime::Result<i32> {
-        let offset = self.minor_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        self.major().or(Ok(0))
-        let (bytes, _) = self.accessor.get_value_at(offset)?;
-        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| crate::RotoError::WireFormatViolation)
     }
 
-    pub fn patch(&self) -> crate::Result<i32> {
+    pub fn has_major(&self) -> bool { self.major_offset.is_some() }
-        let offset = self.patch_offset.ok_or(crate::RotoError::FieldNotFound)?;
+
+    pub fn minor(&self) -> roto_runtime::Result<i32> {
+        let offset = self.minor_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| crate::RotoError::WireFormatViolation)
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
-    pub fn suffix(&self) -> crate::Result<&'a str> {
+    pub fn minor_or_default(&self) -> roto_runtime::Result<i32> {
-        let offset = self.suffix_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        self.minor().or(Ok(0))
-        let (bytes, _) = self.accessor.get_value_at(offset)?;
-        str::from_utf8(bytes).map_err(|_| crate::RotoError::WireFormatViolation)
     }
 
-    pub fn raw_fields(&self) -> crate::RawFieldIterator<'a> {
+    pub fn has_minor(&self) -> bool { self.minor_offset.is_some() }
+
+    pub fn patch(&self) -> roto_runtime::Result<i32> {
+        let offset = self.patch_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn patch_or_default(&self) -> roto_runtime::Result<i32> {
+        self.patch().or(Ok(0))
+    }
+
+    pub fn has_patch(&self) -> bool { self.patch_offset.is_some() }
+
+    pub fn suffix(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.suffix_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn suffix_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.suffix().or(Ok(""))
+    }
+
+    pub fn has_suffix(&self) -> bool { self.suffix_offset.is_some() }
+
+    pub fn raw_fields(&self) -> roto_runtime::RawFieldIterator<'a> {
         self.accessor.raw_fields()
     }
 
 }
 
 pub struct VersionBuilder<'b> {
-    builder: crate::ProtoBuilder<'b>,
+    builder: roto_runtime::ProtoBuilder<'b>,
     major_written: bool,
     minor_written: bool,
     patch_written: bool,
@@ -79,7 +103,7 @@ pub struct VersionBuilder<'b> {
 impl<'b> VersionBuilder<'b> {
     pub fn builder(buf: &mut [u8]) -> VersionBuilder<'_> {
         VersionBuilder {
-            builder: crate::ProtoBuilder::new(buf),
+            builder: roto_runtime::ProtoBuilder::new(buf),
             major_written: false,
             minor_written: false,
             patch_written: false,
@@ -87,32 +111,32 @@ impl<'b> VersionBuilder<'b> {
         }
     }
 
-    pub fn major(mut self, value: i32) -> crate::Result<Self> {
+    pub fn major(mut self, value: i32) -> roto_runtime::Result<Self> {
         self.builder.write_int32(1, value)?;
         self.major_written = true;
         Ok(self)
     }
 
-    pub fn minor(mut self, value: i32) -> crate::Result<Self> {
+    pub fn minor(mut self, value: i32) -> roto_runtime::Result<Self> {
         self.builder.write_int32(2, value)?;
         self.minor_written = true;
         Ok(self)
     }
 
-    pub fn patch(mut self, value: i32) -> crate::Result<Self> {
+    pub fn patch(mut self, value: i32) -> roto_runtime::Result<Self> {
         self.builder.write_int32(3, value)?;
         self.patch_written = true;
         Ok(self)
     }
 
-    pub fn suffix(mut self, value: &str) -> crate::Result<Self> {
+    pub fn suffix(mut self, value: &str) -> roto_runtime::Result<Self> {
         self.builder.write_string(4, value)?;
         self.suffix_written = true;
         Ok(self)
     }
 
-    pub fn with(mut self, msg: &Version<'_>) -> crate::Result<Self> {
+    pub fn with(mut self, msg: &Version<'_>) -> roto_runtime::Result<Self> {
-        for item in msg.raw_fields() {
+        for item in msg.accessor.raw_fields() {
             let (field_number, raw_bytes) = item?;
             let is_written = match field_number {
                 1 => self.major_written,
@@ -128,13 +152,37 @@ impl<'b> VersionBuilder<'b> {
         Ok(self)
     }
 
-    pub fn finish(self) -> crate::Result<&'b mut [u8]> {
+    pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {
         self.builder.finish()
     }
 }
 
+#[cfg(feature = "alloc")]
+pub struct OwnedVersion {
+    pub data: bytes::Bytes,
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoOwned for OwnedVersion {
+    type Reader<'a> = Version<'a>;
+    fn reader(&self) -> Version<'_> {
+        Version::new(&self.data).expect("failed to create reader")
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoMessage for OwnedVersion {
+    fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
+        Ok(OwnedVersion { data: buf })
+    }
+
+    fn bytes(&self) -> bytes::Bytes {
+        self.data.clone()
+    }
+}
+
 pub struct CodeGeneratorRequest<'a> {
-    accessor: crate::ProtoAccessor<'a>,
+    accessor: roto_runtime::ProtoAccessor<'a>,
     file_to_generate_start: Option<usize>,
     file_to_generate_end: Option<usize>,
     parameter_offset: Option<usize>,
@@ -146,8 +194,8 @@ pub struct CodeGeneratorRequest<'a> {
 }
 
 impl<'a> CodeGeneratorRequest<'a> {
-    pub fn new(data: &'a [u8]) -> crate::Result<Self> {
+    pub fn new(data: &'a [u8]) -> roto_runtime::Result<Self> {
-        let accessor = crate::ProtoAccessor::new(data)?;
+        let accessor = roto_runtime::ProtoAccessor::new(data)?;
         let mut file_to_generate_start = None;
         let mut file_to_generate_end = None;
         let mut parameter_offset = None;
@@ -184,47 +232,59 @@ compiler_version_offset,
         })
     }
 
-    pub fn file_to_generate(&self) -> crate::RepeatedFieldIterator<'a> {
+    pub fn file_to_generate(&self) -> roto_runtime::RepeatedFieldIterator<'a> {
         match (self.file_to_generate_start, self.file_to_generate_end) {
             (Some(start), Some(end)) => self.accessor.iter_repeated_range(1, start, end),
             _ => self.accessor.iter_repeated(1),
         }
     }
 
-    pub fn parameter(&self) -> crate::Result<&'a str> {
+    pub fn parameter(&self) -> roto_runtime::Result<&'a str> {
-        let offset = self.parameter_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        let offset = self.parameter_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        str::from_utf8(bytes).map_err(|_| crate::RotoError::WireFormatViolation)
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
-    pub fn proto_file(&self) -> crate::RepeatedFieldIterator<'a> {
+    pub fn parameter_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.parameter().or(Ok(""))
+    }
+
+    pub fn has_parameter(&self) -> bool { self.parameter_offset.is_some() }
+
+    pub fn proto_file(&self) -> roto_runtime::RepeatedFieldIterator<'a> {
         match (self.proto_file_start, self.proto_file_end) {
             (Some(start), Some(end)) => self.accessor.iter_repeated_range(15, start, end),
             _ => self.accessor.iter_repeated(15),
         }
     }
 
-    pub fn source_file_descriptors(&self) -> crate::RepeatedFieldIterator<'a> {
+    pub fn source_file_descriptors(&self) -> roto_runtime::RepeatedFieldIterator<'a> {
         match (self.source_file_descriptors_start, self.source_file_descriptors_end) {
             (Some(start), Some(end)) => self.accessor.iter_repeated_range(17, start, end),
             _ => self.accessor.iter_repeated(17),
         }
     }
 
-    pub fn compiler_version(&self) -> crate::Result<&'a [u8]> {
+    pub fn compiler_version(&self) -> roto_runtime::Result<&'a [u8]> {
-        let offset = self.compiler_version_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        let offset = self.compiler_version_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
         Ok(bytes)
     }
 
-    pub fn raw_fields(&self) -> crate::RawFieldIterator<'a> {
+    pub fn compiler_version_or_default(&self) -> roto_runtime::Result<&'a [u8]> {
+        self.compiler_version().or(Ok(&[]))
+    }
+
+    pub fn has_compiler_version(&self) -> bool { self.compiler_version_offset.is_some() }
+
+    pub fn raw_fields(&self) -> roto_runtime::RawFieldIterator<'a> {
         self.accessor.raw_fields()
     }
 
 }
 
 pub struct CodeGeneratorRequestBuilder<'b> {
-    builder: crate::ProtoBuilder<'b>,
+    builder: roto_runtime::ProtoBuilder<'b>,
     file_to_generate_written: bool,
     parameter_written: bool,
     proto_file_written: bool,
@@ -235,7 +295,7 @@ pub struct CodeGeneratorRequestBuilder<'b> {
 impl<'b> CodeGeneratorRequestBuilder<'b> {
     pub fn builder(buf: &mut [u8]) -> CodeGeneratorRequestBuilder<'_> {
         CodeGeneratorRequestBuilder {
-            builder: crate::ProtoBuilder::new(buf),
+            builder: roto_runtime::ProtoBuilder::new(buf),
             file_to_generate_written: false,
             parameter_written: false,
             proto_file_written: false,
@@ -244,38 +304,38 @@ impl<'b> CodeGeneratorRequestBuilder<'b> {
         }
     }
 
-    pub fn file_to_generate(mut self, value: &str) -> crate::Result<Self> {
+    pub fn file_to_generate(mut self, value: &str) -> roto_runtime::Result<Self> {
         self.builder.write_string(1, value)?;
         self.file_to_generate_written = true;
         Ok(self)
     }
 
-    pub fn parameter(mut self, value: &str) -> crate::Result<Self> {
+    pub fn parameter(mut self, value: &str) -> roto_runtime::Result<Self> {
         self.builder.write_string(2, value)?;
         self.parameter_written = true;
         Ok(self)
     }
 
-    pub fn proto_file(mut self, value: &[u8]) -> crate::Result<Self> {
+    pub fn proto_file(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
         self.builder.write_bytes(15, value)?;
         self.proto_file_written = true;
         Ok(self)
     }
 
-    pub fn source_file_descriptors(mut self, value: &[u8]) -> crate::Result<Self> {
+    pub fn source_file_descriptors(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
         self.builder.write_bytes(17, value)?;
         self.source_file_descriptors_written = true;
         Ok(self)
     }
 
-    pub fn compiler_version(mut self, value: &[u8]) -> crate::Result<Self> {
+    pub fn compiler_version(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
         self.builder.write_bytes(3, value)?;
         self.compiler_version_written = true;
         Ok(self)
     }
 
-    pub fn with(mut self, msg: &CodeGeneratorRequest<'_>) -> crate::Result<Self> {
+    pub fn with(mut self, msg: &CodeGeneratorRequest<'_>) -> roto_runtime::Result<Self> {
-        for item in msg.raw_fields() {
+        for item in msg.accessor.raw_fields() {
             let (field_number, raw_bytes) = item?;
             let is_written = match field_number {
                 1 => self.file_to_generate_written,
@@ -292,13 +352,37 @@ impl<'b> CodeGeneratorRequestBuilder<'b> {
         Ok(self)
     }
 
-    pub fn finish(self) -> crate::Result<&'b mut [u8]> {
+    pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {
         self.builder.finish()
     }
 }
 
+#[cfg(feature = "alloc")]
+pub struct OwnedCodeGeneratorRequest {
+    pub data: bytes::Bytes,
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoOwned for OwnedCodeGeneratorRequest {
+    type Reader<'a> = CodeGeneratorRequest<'a>;
+    fn reader(&self) -> CodeGeneratorRequest<'_> {
+        CodeGeneratorRequest::new(&self.data).expect("failed to create reader")
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoMessage for OwnedCodeGeneratorRequest {
+    fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
+        Ok(OwnedCodeGeneratorRequest { data: buf })
+    }
+
+    fn bytes(&self) -> bytes::Bytes {
+        self.data.clone()
+    }
+}
+
 pub struct CodeGeneratorResponse<'a> {
-    accessor: crate::ProtoAccessor<'a>,
+    accessor: roto_runtime::ProtoAccessor<'a>,
     error_offset: Option<usize>,
     supported_features_offset: Option<usize>,
     minimum_edition_offset: Option<usize>,
@@ -308,8 +392,8 @@ pub struct CodeGeneratorResponse<'a> {
 }
 
 impl<'a> CodeGeneratorResponse<'a> {
-    pub fn new(data: &'a [u8]) -> crate::Result<Self> {
+    pub fn new(data: &'a [u8]) -> roto_runtime::Result<Self> {
-        let accessor = crate::ProtoAccessor::new(data)?;
+        let accessor = roto_runtime::ProtoAccessor::new(data)?;
         let mut error_offset = None;
         let mut supported_features_offset = None;
         let mut minimum_edition_offset = None;
@@ -338,45 +422,69 @@ file_start, file_end,
         })
     }
 
-    pub fn error(&self) -> crate::Result<&'a str> {
+    pub fn error(&self) -> roto_runtime::Result<&'a str> {
-        let offset = self.error_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        let offset = self.error_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        str::from_utf8(bytes).map_err(|_| crate::RotoError::WireFormatViolation)
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
-    pub fn supported_features(&self) -> crate::Result<u32> {
+    pub fn error_or_default(&self) -> roto_runtime::Result<&'a str> {
-        let offset = self.supported_features_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        self.error().or(Ok(""))
-        let (bytes, _) = self.accessor.get_value_at(offset)?;
-        crate::read_varint(bytes).map(|(v, _)| v as u32).map_err(|_| crate::RotoError::WireFormatViolation)
     }
 
-    pub fn minimum_edition(&self) -> crate::Result<i32> {
+    pub fn has_error(&self) -> bool { self.error_offset.is_some() }
-        let offset = self.minimum_edition_offset.ok_or(crate::RotoError::FieldNotFound)?;
+
+    pub fn supported_features(&self) -> roto_runtime::Result<u32> {
+        let offset = self.supported_features_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| crate::RotoError::WireFormatViolation)
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as u32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
-    pub fn maximum_edition(&self) -> crate::Result<i32> {
+    pub fn supported_features_or_default(&self) -> roto_runtime::Result<u32> {
-        let offset = self.maximum_edition_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        self.supported_features().or(Ok(0))
-        let (bytes, _) = self.accessor.get_value_at(offset)?;
-        crate::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| crate::RotoError::WireFormatViolation)
     }
 
-    pub fn file(&self) -> crate::RepeatedFieldIterator<'a> {
+    pub fn has_supported_features(&self) -> bool { self.supported_features_offset.is_some() }
+
+    pub fn minimum_edition(&self) -> roto_runtime::Result<i32> {
+        let offset = self.minimum_edition_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn minimum_edition_or_default(&self) -> roto_runtime::Result<i32> {
+        self.minimum_edition().or(Ok(0))
+    }
+
+    pub fn has_minimum_edition(&self) -> bool { self.minimum_edition_offset.is_some() }
+
+    pub fn maximum_edition(&self) -> roto_runtime::Result<i32> {
+        let offset = self.maximum_edition_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn maximum_edition_or_default(&self) -> roto_runtime::Result<i32> {
+        self.maximum_edition().or(Ok(0))
+    }
+
+    pub fn has_maximum_edition(&self) -> bool { self.maximum_edition_offset.is_some() }
+
+    pub fn file(&self) -> roto_runtime::RepeatedFieldIterator<'a> {
         match (self.file_start, self.file_end) {
             (Some(start), Some(end)) => self.accessor.iter_repeated_range(15, start, end),
             _ => self.accessor.iter_repeated(15),
         }
     }
 
-    pub fn raw_fields(&self) -> crate::RawFieldIterator<'a> {
+    pub fn raw_fields(&self) -> roto_runtime::RawFieldIterator<'a> {
         self.accessor.raw_fields()
     }
 
 }
 
 pub struct CodeGeneratorResponseBuilder<'b> {
-    builder: crate::ProtoBuilder<'b>,
+    builder: roto_runtime::ProtoBuilder<'b>,
     error_written: bool,
     supported_features_written: bool,
     minimum_edition_written: bool,
@@ -387,7 +495,7 @@ pub struct CodeGeneratorResponseBuilder<'b> {
 impl<'b> CodeGeneratorResponseBuilder<'b> {
     pub fn builder(buf: &mut [u8]) -> CodeGeneratorResponseBuilder<'_> {
         CodeGeneratorResponseBuilder {
-            builder: crate::ProtoBuilder::new(buf),
+            builder: roto_runtime::ProtoBuilder::new(buf),
             error_written: false,
             supported_features_written: false,
             minimum_edition_written: false,
@@ -396,38 +504,38 @@ impl<'b> CodeGeneratorResponseBuilder<'b> {
         }
     }
 
-    pub fn error(mut self, value: &str) -> crate::Result<Self> {
+    pub fn error(mut self, value: &str) -> roto_runtime::Result<Self> {
         self.builder.write_string(1, value)?;
         self.error_written = true;
         Ok(self)
     }
 
-    pub fn supported_features(mut self, value: u64) -> crate::Result<Self> {
+    pub fn supported_features(mut self, value: u64) -> roto_runtime::Result<Self> {
         self.builder.write_varint(2, value)?;
         self.supported_features_written = true;
         Ok(self)
     }
 
-    pub fn minimum_edition(mut self, value: i32) -> crate::Result<Self> {
+    pub fn minimum_edition(mut self, value: i32) -> roto_runtime::Result<Self> {
         self.builder.write_int32(3, value)?;
         self.minimum_edition_written = true;
         Ok(self)
     }
 
-    pub fn maximum_edition(mut self, value: i32) -> crate::Result<Self> {
+    pub fn maximum_edition(mut self, value: i32) -> roto_runtime::Result<Self> {
         self.builder.write_int32(4, value)?;
         self.maximum_edition_written = true;
         Ok(self)
     }
 
-    pub fn file(mut self, value: &[u8]) -> crate::Result<Self> {
+    pub fn file(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
         self.builder.write_bytes(15, value)?;
         self.file_written = true;
         Ok(self)
     }
 
-    pub fn with(mut self, msg: &CodeGeneratorResponse<'_>) -> crate::Result<Self> {
+    pub fn with(mut self, msg: &CodeGeneratorResponse<'_>) -> roto_runtime::Result<Self> {
-        for item in msg.raw_fields() {
+        for item in msg.accessor.raw_fields() {
             let (field_number, raw_bytes) = item?;
             let is_written = match field_number {
                 1 => self.error_written,
@@ -444,11 +552,35 @@ impl<'b> CodeGeneratorResponseBuilder<'b> {
         Ok(self)
     }
 
-    pub fn finish(self) -> crate::Result<&'b mut [u8]> {
+    pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {
         self.builder.finish()
     }
 }
 
+#[cfg(feature = "alloc")]
+pub struct OwnedCodeGeneratorResponse {
+    pub data: bytes::Bytes,
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoOwned for OwnedCodeGeneratorResponse {
+    type Reader<'a> = CodeGeneratorResponse<'a>;
+    fn reader(&self) -> CodeGeneratorResponse<'_> {
+        CodeGeneratorResponse::new(&self.data).expect("failed to create reader")
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoMessage for OwnedCodeGeneratorResponse {
+    fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
+        Ok(OwnedCodeGeneratorResponse { data: buf })
+    }
+
+    fn bytes(&self) -> bytes::Bytes {
+        self.data.clone()
+    }
+}
+
 pub mod code_generator_response {
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(i32)]
@@ -470,7 +602,7 @@ impl Feature {
 }
 
 pub struct File<'a> {
-    accessor: crate::ProtoAccessor<'a>,
+    accessor: roto_runtime::ProtoAccessor<'a>,
     name_offset: Option<usize>,
     insertion_point_offset: Option<usize>,
     content_offset: Option<usize>,
@@ -478,8 +610,8 @@ pub struct File<'a> {
 }
 
 impl<'a> File<'a> {
-    pub fn new(data: &'a [u8]) -> crate::Result<Self> {
+    pub fn new(data: &'a [u8]) -> roto_runtime::Result<Self> {
-        let accessor = crate::ProtoAccessor::new(data)?;
+        let accessor = roto_runtime::ProtoAccessor::new(data)?;
         let mut name_offset = None;
         let mut insertion_point_offset = None;
         let mut content_offset = None;
@@ -501,38 +633,62 @@ generated_code_info_offset,
         })
     }
 
-    pub fn name(&self) -> crate::Result<&'a str> {
+    pub fn name(&self) -> roto_runtime::Result<&'a str> {
-        let offset = self.name_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        let offset = self.name_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        str::from_utf8(bytes).map_err(|_| crate::RotoError::WireFormatViolation)
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
-    pub fn insertion_point(&self) -> crate::Result<&'a str> {
+    pub fn name_or_default(&self) -> roto_runtime::Result<&'a str> {
-        let offset = self.insertion_point_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        self.name().or(Ok(""))
-        let (bytes, _) = self.accessor.get_value_at(offset)?;
-        str::from_utf8(bytes).map_err(|_| crate::RotoError::WireFormatViolation)
     }
 
-    pub fn content(&self) -> crate::Result<&'a str> {
+    pub fn has_name(&self) -> bool { self.name_offset.is_some() }
-        let offset = self.content_offset.ok_or(crate::RotoError::FieldNotFound)?;
+
+    pub fn insertion_point(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.insertion_point_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        str::from_utf8(bytes).map_err(|_| crate::RotoError::WireFormatViolation)
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
-    pub fn generated_code_info(&self) -> crate::Result<&'a [u8]> {
+    pub fn insertion_point_or_default(&self) -> roto_runtime::Result<&'a str> {
-        let offset = self.generated_code_info_offset.ok_or(crate::RotoError::FieldNotFound)?;
+        self.insertion_point().or(Ok(""))
+    }
+
+    pub fn has_insertion_point(&self) -> bool { self.insertion_point_offset.is_some() }
+
+    pub fn content(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.content_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn content_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.content().or(Ok(""))
+    }
+
+    pub fn has_content(&self) -> bool { self.content_offset.is_some() }
+
+    pub fn generated_code_info(&self) -> roto_runtime::Result<&'a [u8]> {
+        let offset = self.generated_code_info_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
         Ok(bytes)
     }
 
-    pub fn raw_fields(&self) -> crate::RawFieldIterator<'a> {
+    pub fn generated_code_info_or_default(&self) -> roto_runtime::Result<&'a [u8]> {
+        self.generated_code_info().or(Ok(&[]))
+    }
+
+    pub fn has_generated_code_info(&self) -> bool { self.generated_code_info_offset.is_some() }
+
+    pub fn raw_fields(&self) -> roto_runtime::RawFieldIterator<'a> {
         self.accessor.raw_fields()
     }
 
 }
 
 pub struct FileBuilder<'b> {
-    builder: crate::ProtoBuilder<'b>,
+    builder: roto_runtime::ProtoBuilder<'b>,
     name_written: bool,
     insertion_point_written: bool,
     content_written: bool,
@@ -542,7 +698,7 @@ pub struct FileBuilder<'b> {
 impl<'b> FileBuilder<'b> {
     pub fn builder(buf: &mut [u8]) -> FileBuilder<'_> {
         FileBuilder {
-            builder: crate::ProtoBuilder::new(buf),
+            builder: roto_runtime::ProtoBuilder::new(buf),
             name_written: false,
             insertion_point_written: false,
             content_written: false,
@@ -550,32 +706,32 @@ impl<'b> FileBuilder<'b> {
         }
     }
 
-    pub fn name(mut self, value: &str) -> crate::Result<Self> {
+    pub fn name(mut self, value: &str) -> roto_runtime::Result<Self> {
         self.builder.write_string(1, value)?;
         self.name_written = true;
         Ok(self)
     }
 
-    pub fn insertion_point(mut self, value: &str) -> crate::Result<Self> {
+    pub fn insertion_point(mut self, value: &str) -> roto_runtime::Result<Self> {
         self.builder.write_string(2, value)?;
         self.insertion_point_written = true;
         Ok(self)
     }
 
-    pub fn content(mut self, value: &str) -> crate::Result<Self> {
+    pub fn content(mut self, value: &str) -> roto_runtime::Result<Self> {
         self.builder.write_string(15, value)?;
         self.content_written = true;
         Ok(self)
     }
 
-    pub fn generated_code_info(mut self, value: &[u8]) -> crate::Result<Self> {
+    pub fn generated_code_info(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
         self.builder.write_bytes(16, value)?;
         self.generated_code_info_written = true;
         Ok(self)
     }
 
-    pub fn with(mut self, msg: &File<'_>) -> crate::Result<Self> {
+    pub fn with(mut self, msg: &File<'_>) -> roto_runtime::Result<Self> {
-        for item in msg.raw_fields() {
+        for item in msg.accessor.raw_fields() {
             let (field_number, raw_bytes) = item?;
             let is_written = match field_number {
                 1 => self.name_written,
@@ -591,10 +747,37 @@ impl<'b> FileBuilder<'b> {
         Ok(self)
     }
 
-    pub fn finish(self) -> crate::Result<&'b mut [u8]> {
+    pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {
         self.builder.finish()
     }
 }
 
+#[cfg(feature = "alloc")]
+pub struct OwnedFile {
+    pub data: bytes::Bytes,
 }
 
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoOwned for OwnedFile {
+    type Reader<'a> = File<'a>;
+    fn reader(&self) -> File<'_> {
+        File::new(&self.data).expect("failed to create reader")
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoMessage for OwnedFile {
+    fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
+        Ok(OwnedFile { data: buf })
+    }
+
+    fn bytes(&self) -> bytes::Bytes {
+        self.data.clone()
+    }
+}
+
+}
+
+
+use crate::google::protobuf::descriptor;
+

examples/hello_world/proto/hello.rs

@@ -1,22 +1,9 @@
 // @generated by protoc-gen-roto — do not edit
 #[allow(unused_imports)]
-
+use roto_runtime::{ProtoAccessor, ProtoBuilder, Result, RotoError, read_varint, RepeatedFieldIterator, RotoMessage};
-use roto_runtime::{ProtoAccessor, ProtoBuilder, Result, RotoError, read_varint, RepeatedFieldIterator};
+use core::str;
-use std::str;
+#[cfg(feature = "alloc")]
 use bytes::{Bytes, BytesMut, Buf, BufMut};
-use tonic::{Request, Response, Status};
-use tokio_stream::Stream;
-use std::pin::Pin;
-use std::sync::Arc;
-use std::task::{Context, Poll};
-use std::future::Future;
-use tonic::body::BoxBody;
-use tower::Service;
-use futures_util::StreamExt;
-use http_body_util::BodyExt;
-use http_body::Body;
-use roto_tonic::{BufferPool, StatusBody};
-
 
 pub struct HelloRequest<'a> {
     accessor: roto_runtime::ProtoAccessor<'a>,
@@ -41,7 +28,7 @@ name_offset,
     pub fn name(&self) -> roto_runtime::Result<&'a str> {
         let offset = self.name_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
     pub fn name_or_default(&self) -> roto_runtime::Result<&'a str> {
@@ -76,7 +63,7 @@ impl<'b> HelloRequestBuilder<'b> {
     }
 
     pub fn with(mut self, msg: &HelloRequest<'_>) -> roto_runtime::Result<Self> {
-        for item in msg.raw_fields() {
+        for item in msg.accessor.raw_fields() {
             let (field_number, raw_bytes) = item?;
             let is_written = match field_number {
                 1 => self.name_written,
@@ -94,10 +81,12 @@ impl<'b> HelloRequestBuilder<'b> {
     }
 }
 
+#[cfg(feature = "alloc")]
 pub struct OwnedHelloRequest {
     pub data: bytes::Bytes,
 }
 
+#[cfg(feature = "alloc")]
 impl roto_runtime::RotoOwned for OwnedHelloRequest {
     type Reader<'a> = HelloRequest<'a>;
     fn reader(&self) -> HelloRequest<'_> {
@@ -105,6 +94,7 @@ impl roto_runtime::RotoOwned for OwnedHelloRequest {
     }
 }
 
+#[cfg(feature = "alloc")]
 impl roto_runtime::RotoMessage for OwnedHelloRequest {
     fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
         Ok(OwnedHelloRequest { data: buf })
@@ -138,7 +128,7 @@ message_offset,
     pub fn message(&self) -> roto_runtime::Result<&'a str> {
         let offset = self.message_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
         let (bytes, _) = self.accessor.get_value_at(offset)?;
-        str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
     }
 
     pub fn message_or_default(&self) -> roto_runtime::Result<&'a str> {
@@ -173,7 +163,7 @@ impl<'b> HelloResponseBuilder<'b> {
     }
 
     pub fn with(mut self, msg: &HelloResponse<'_>) -> roto_runtime::Result<Self> {
-        for item in msg.raw_fields() {
+        for item in msg.accessor.raw_fields() {
             let (field_number, raw_bytes) = item?;
             let is_written = match field_number {
                 1 => self.message_written,
@@ -191,10 +181,12 @@ impl<'b> HelloResponseBuilder<'b> {
     }
 }
 
+#[cfg(feature = "alloc")]
 pub struct OwnedHelloResponse {
     pub data: bytes::Bytes,
 }
 
+#[cfg(feature = "alloc")]
 impl roto_runtime::RotoOwned for OwnedHelloResponse {
     type Reader<'a> = HelloResponse<'a>;
     fn reader(&self) -> HelloResponse<'_> {
@@ -202,6 +194,7 @@ impl roto_runtime::RotoOwned for OwnedHelloResponse {
     }
 }
 
+#[cfg(feature = "alloc")]
 impl roto_runtime::RotoMessage for OwnedHelloResponse {
     fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
         Ok(OwnedHelloResponse { data: buf })
@@ -212,32 +205,65 @@ impl roto_runtime::RotoMessage for OwnedHelloResponse {
     }
 }
 
-#[tonic::async_trait]
+
+
+#[cfg(feature = "alloc")]
+use tonic::{Request, Response, Status};
+#[cfg(feature = "alloc")]
+use tokio_stream::Stream;
+#[cfg(feature = "alloc")]
+use std::pin::Pin;
+#[cfg(feature = "alloc")]
+use std::sync::Arc;
+#[cfg(feature = "alloc")]
+use std::task::{Context, Poll};
+#[cfg(feature = "alloc")]
+use std::future::Future;
+#[cfg(feature = "alloc")]
+use tonic::body::BoxBody;
+#[cfg(feature = "alloc")]
+use tower::Service;
+#[cfg(feature = "alloc")]
+use futures_util::StreamExt;
+#[cfg(feature = "alloc")]
+use http_body_util::BodyExt;
+#[cfg(feature = "alloc")]
+use http_body::Body;
+#[cfg(feature = "alloc")]
+use crate::{BufferPool, StatusBody};
+
+#[cfg(feature = "alloc")]
+#[async_trait::async_trait]
 pub trait HelloWorldService: Send + Sync + 'static {
     async fn hello_world(&self, request: Request<OwnedHelloRequest>) -> std::result::Result<Response<OwnedHelloResponse>, Status>;
 }
 
+#[cfg(feature = "alloc")]
+#[derive(Clone)]
 pub struct HelloWorldServiceServer {
     inner: Arc<dyn HelloWorldService>,
     pool: Arc<BufferPool>,
 }
 
+#[cfg(feature = "alloc")]
 impl HelloWorldServiceServer {
     pub fn new(inner: Arc<dyn HelloWorldService>, pool: Arc<BufferPool>) -> Self {
         Self { inner, pool }
     }
 }
 
+#[cfg(feature = "alloc")]
 impl tonic::server::NamedService for HelloWorldServiceServer {
-    const NAME: &'static str = "HelloWorldService";
+    const NAME: &'static str = "hello.HelloWorldService";
 }
 
+#[cfg(feature = "alloc")]
 impl Service<http::Request<BoxBody>> for HelloWorldServiceServer {
     type Response = http::Response<BoxBody>;
     type Error = std::convert::Infallible;
-    type Future = Pin<Box<dyn Future<Output = Result<Self::Response, Self::Error>> + Send>>;
+    type Future = Pin<Box<dyn Future<Output = std::result::Result<Self::Response, Self::Error>> + Send>>;
 
-    fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+    fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<std::result::Result<(), Self::Error>> {
         Poll::Ready(Ok(()))
     }
 
@@ -245,13 +271,12 @@ impl Service<http::Request<BoxBody>> for HelloWorldServiceServer {
         let inner = self.inner.clone();
         let pool = self.pool.clone();
         Box::pin(async move {
+            let path = req.uri().path().to_string();
             let body = req.into_body();
             let mut buf = pool.get();
             let mut stream = body;
             while let Some(frame_result) = stream.frame().await {
-                let frame = frame_result.map_err(|e| {
+                let frame = frame_result.expect("Body frame error");
-                    panic!("Body frame error: {}", e);
-                })?;
                 if let Some(data) = frame.data_ref() {
                     buf.put(data.clone());
                 }
@@ -261,30 +286,29 @@ impl Service<http::Request<BoxBody>> for HelloWorldServiceServer {
             let bytes_vec = buf.split_to(total_len).freeze();
             pool.put(buf);
             if bytes_vec.len() < 5 {
-                let res_body = BoxBody::new(StatusBody(Some(Bytes::from_static(&[0, 0, 0, 0, 0]))));
+                let res_body = BoxBody::new(StatusBody::new(Some(Bytes::from_static(&[0, 0, 0, 0, 0])), 0));
                 return Ok(http::Response::builder().status(200).body(res_body).unwrap());
             }
 
             let payload = bytes_vec.slice(5..);
-            let path = req.uri().path();
             let mut routed = false;
 
-            if path == "/HelloWorldService/hello_world" {
+            if path == "/hello.HelloWorldService/HelloWorld" {
                 let request_msg = match OwnedHelloRequest::decode(payload) {
                     Ok(msg) => msg,
                     Err(e) => {
-                        let res_body = BoxBody::new(StatusBody(Some(Bytes::from_static(&[0, 0, 0, 0, 0]))));
+                        let res_body = BoxBody::new(StatusBody::new(Some(Bytes::from_static(&[0, 0, 0, 0, 0])), 0));
                         return Ok(http::Response::builder().status(200).body(res_body).unwrap());
                     }
-                }};
+                };
 
                 let response = match inner.hello_world(Request::new(request_msg)).await {
                     Ok(res) => res,
                     Err(e) => {
-                        let res_body = BoxBody::new(StatusBody(Some(Bytes::from_static(&[0, 0, 0, 0, 0]))));
+                        let res_body = BoxBody::new(StatusBody::new(Some(Bytes::from_static(&[0, 0, 0, 0, 0])), 0));
                         return Ok(http::Response::builder().status(200).body(res_body).unwrap());
                     }
-                }};
+                };
 
                 let response_msg = response.into_inner();
                 let response_bytes = response_msg.bytes();
@@ -296,15 +320,15 @@ impl Service<http::Request<BoxBody>> for HelloWorldServiceServer {
                 let frame_len = res_buf.len();
                 let frame = res_buf.split_to(frame_len).freeze();
                 pool.put(res_buf);
-                let res_body = BoxBody::new(StatusBody(Some(frame)));
+                let res_body = BoxBody::new(StatusBody::new(Some(frame), 0));
                 routed = true;
                 return Ok(http::Response::builder().status(200).header("content-type", "application/grpc").body(res_body).unwrap());
             }
             if !routed {
-                let res_body = BoxBody::new(StatusBody(Some(Bytes::from_static(&[0, 0, 0, 0, 0]))));
+                let res_body = BoxBody::new(StatusBody::new(Some(Bytes::from_static(&[0, 0, 0, 0, 0])), 0));
                 return Ok(http::Response::builder().status(200).body(res_body).unwrap());
             }
-            Ok(http::Response::builder().status(200).body(BoxBody::new(StatusBody(None))).unwrap())
+            Ok(http::Response::builder().status(200).body(BoxBody::new(StatusBody::new(None, 0))).unwrap())
         })
     }
 }

examples/no_std_test/src/helloworld.rs

@@ -1,8 +1,8 @@
 // @generated by protoc-gen-roto — do not edit
 #[allow(unused_imports)]
-
 use roto_runtime::{ProtoAccessor, ProtoBuilder, Result, RotoError, read_varint, RepeatedFieldIterator, RotoMessage};
 use core::str;
+#[cfg(feature = "alloc")]
 use bytes::{Bytes, BytesMut, Buf, BufMut};
 
 pub struct Hello<'a> {
@@ -675,3 +675,131 @@ impl roto_runtime::RotoMessage for OwnedHelloReply {
         self.data.clone()
     }
 }
+
+
+
+#[cfg(feature = "alloc")]
+use tonic::{Request, Response, Status};
+#[cfg(feature = "alloc")]
+use tokio_stream::Stream;
+#[cfg(feature = "alloc")]
+use std::pin::Pin;
+#[cfg(feature = "alloc")]
+use std::sync::Arc;
+#[cfg(feature = "alloc")]
+use std::task::{Context, Poll};
+#[cfg(feature = "alloc")]
+use std::future::Future;
+#[cfg(feature = "alloc")]
+use tonic::body::BoxBody;
+#[cfg(feature = "alloc")]
+use tower::Service;
+#[cfg(feature = "alloc")]
+use futures_util::StreamExt;
+#[cfg(feature = "alloc")]
+use http_body_util::BodyExt;
+#[cfg(feature = "alloc")]
+use http_body::Body;
+#[cfg(feature = "alloc")]
+use crate::{BufferPool, StatusBody};
+
+#[cfg(feature = "alloc")]
+#[async_trait::async_trait]
+pub trait Greeter: Send + Sync + 'static {
+    async fn say_hello(&self, request: Request<OwnedHelloRequest>) -> std::result::Result<Response<OwnedHelloReply>, Status>;
+}
+
+#[cfg(feature = "alloc")]
+#[derive(Clone)]
+pub struct GreeterServer {
+    inner: Arc<dyn Greeter>,
+    pool: Arc<BufferPool>,
+}
+
+#[cfg(feature = "alloc")]
+impl GreeterServer {
+    pub fn new(inner: Arc<dyn Greeter>, pool: Arc<BufferPool>) -> Self {
+        Self { inner, pool }
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl tonic::server::NamedService for GreeterServer {
+    const NAME: &'static str = "helloworld.Greeter";
+}
+
+#[cfg(feature = "alloc")]
+impl Service<http::Request<BoxBody>> for GreeterServer {
+    type Response = http::Response<BoxBody>;
+    type Error = std::convert::Infallible;
+    type Future = Pin<Box<dyn Future<Output = std::result::Result<Self::Response, Self::Error>> + Send>>;
+
+    fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<std::result::Result<(), Self::Error>> {
+        Poll::Ready(Ok(()))
+    }
+
+    fn call(&mut self, req: http::Request<BoxBody>) -> Self::Future {
+        let inner = self.inner.clone();
+        let pool = self.pool.clone();
+        Box::pin(async move {
+            let path = req.uri().path().to_string();
+            let body = req.into_body();
+            let mut buf = pool.get();
+            let mut stream = body;
+            while let Some(frame_result) = stream.frame().await {
+                let frame = frame_result.expect("Body frame error");
+                if let Some(data) = frame.data_ref() {
+                    buf.put(data.clone());
+                }
+            }
+
+            let total_len = buf.len();
+            let bytes_vec = buf.split_to(total_len).freeze();
+            pool.put(buf);
+            if bytes_vec.len() < 5 {
+                let res_body = BoxBody::new(StatusBody::new(Some(Bytes::from_static(&[0, 0, 0, 0, 0])), 0));
+                return Ok(http::Response::builder().status(200).body(res_body).unwrap());
+            }
+
+            let payload = bytes_vec.slice(5..);
+            let mut routed = false;
+
+            if path == "/helloworld.Greeter/SayHello" {
+                let request_msg = match OwnedHelloRequest::decode(payload) {
+                    Ok(msg) => msg,
+                    Err(e) => {
+                        let res_body = BoxBody::new(StatusBody::new(Some(Bytes::from_static(&[0, 0, 0, 0, 0])), 0));
+                        return Ok(http::Response::builder().status(200).body(res_body).unwrap());
+                    }
+                };
+
+                let response = match inner.say_hello(Request::new(request_msg)).await {
+                    Ok(res) => res,
+                    Err(e) => {
+                        let res_body = BoxBody::new(StatusBody::new(Some(Bytes::from_static(&[0, 0, 0, 0, 0])), 0));
+                        return Ok(http::Response::builder().status(200).body(res_body).unwrap());
+                    }
+                };
+
+                let response_msg = response.into_inner();
+                let response_bytes = response_msg.bytes();
+                let mut res_buf = pool.get();
+                res_buf.put_u8(0);
+                let len = response_bytes.len() as u32;
+                res_buf.put_slice(&len.to_be_bytes());
+                res_buf.put_slice(&response_bytes);
+                let frame_len = res_buf.len();
+                let frame = res_buf.split_to(frame_len).freeze();
+                pool.put(res_buf);
+                let res_body = BoxBody::new(StatusBody::new(Some(frame), 0));
+                routed = true;
+                return Ok(http::Response::builder().status(200).header("content-type", "application/grpc").body(res_body).unwrap());
+            }
+            if !routed {
+                let res_body = BoxBody::new(StatusBody::new(Some(Bytes::from_static(&[0, 0, 0, 0, 0])), 0));
+                return Ok(http::Response::builder().status(200).body(res_body).unwrap());
+            }
+            Ok(http::Response::builder().status(200).body(BoxBody::new(StatusBody::new(None, 0))).unwrap())
+        })
+    }
+}

roto/benches/src/google/protobuf/compiler/plugin.rs

@@ -0,0 +1,783 @@
+// @generated by protoc-gen-roto — do not edit
+#[allow(unused_imports)]
+use roto_runtime::{ProtoAccessor, ProtoBuilder, Result, RotoError, read_varint, RepeatedFieldIterator, RotoMessage};
+use core::str;
+#[cfg(feature = "alloc")]
+use bytes::{Bytes, BytesMut, Buf, BufMut};
+use crate::google::protobuf::descriptor;
+
+pub struct Version<'a> {
+    accessor: roto_runtime::ProtoAccessor<'a>,
+    major_offset: Option<usize>,
+    minor_offset: Option<usize>,
+    patch_offset: Option<usize>,
+    suffix_offset: Option<usize>,
+}
+
+impl<'a> Version<'a> {
+    pub fn new(data: &'a [u8]) -> roto_runtime::Result<Self> {
+        let accessor = roto_runtime::ProtoAccessor::new(data)?;
+        let mut major_offset = None;
+        let mut minor_offset = None;
+        let mut patch_offset = None;
+        let mut suffix_offset = None;
+        for item in accessor.fields() {
+            let (offset, tag, _) = item?;
+            if tag.field_number == 1 { major_offset = Some(offset); }
+            if tag.field_number == 2 { minor_offset = Some(offset); }
+            if tag.field_number == 3 { patch_offset = Some(offset); }
+            if tag.field_number == 4 { suffix_offset = Some(offset); }
+        }
+
+        Ok(Self {
+            accessor,
+major_offset,
+minor_offset,
+patch_offset,
+suffix_offset,
+        })
+    }
+
+    pub fn major(&self) -> roto_runtime::Result<i32> {
+        let offset = self.major_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn major_or_default(&self) -> roto_runtime::Result<i32> {
+        self.major().or(Ok(0))
+    }
+
+    pub fn has_major(&self) -> bool { self.major_offset.is_some() }
+
+    pub fn minor(&self) -> roto_runtime::Result<i32> {
+        let offset = self.minor_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn minor_or_default(&self) -> roto_runtime::Result<i32> {
+        self.minor().or(Ok(0))
+    }
+
+    pub fn has_minor(&self) -> bool { self.minor_offset.is_some() }
+
+    pub fn patch(&self) -> roto_runtime::Result<i32> {
+        let offset = self.patch_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn patch_or_default(&self) -> roto_runtime::Result<i32> {
+        self.patch().or(Ok(0))
+    }
+
+    pub fn has_patch(&self) -> bool { self.patch_offset.is_some() }
+
+    pub fn suffix(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.suffix_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn suffix_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.suffix().or(Ok(""))
+    }
+
+    pub fn has_suffix(&self) -> bool { self.suffix_offset.is_some() }
+
+    pub fn raw_fields(&self) -> roto_runtime::RawFieldIterator<'a> {
+        self.accessor.raw_fields()
+    }
+
+}
+
+pub struct VersionBuilder<'b> {
+    builder: roto_runtime::ProtoBuilder<'b>,
+    major_written: bool,
+    minor_written: bool,
+    patch_written: bool,
+    suffix_written: bool,
+}
+
+impl<'b> VersionBuilder<'b> {
+    pub fn builder(buf: &mut [u8]) -> VersionBuilder<'_> {
+        VersionBuilder {
+            builder: roto_runtime::ProtoBuilder::new(buf),
+            major_written: false,
+            minor_written: false,
+            patch_written: false,
+            suffix_written: false,
+        }
+    }
+
+    pub fn major(mut self, value: i32) -> roto_runtime::Result<Self> {
+        self.builder.write_int32(1, value)?;
+        self.major_written = true;
+        Ok(self)
+    }
+
+    pub fn minor(mut self, value: i32) -> roto_runtime::Result<Self> {
+        self.builder.write_int32(2, value)?;
+        self.minor_written = true;
+        Ok(self)
+    }
+
+    pub fn patch(mut self, value: i32) -> roto_runtime::Result<Self> {
+        self.builder.write_int32(3, value)?;
+        self.patch_written = true;
+        Ok(self)
+    }
+
+    pub fn suffix(mut self, value: &str) -> roto_runtime::Result<Self> {
+        self.builder.write_string(4, value)?;
+        self.suffix_written = true;
+        Ok(self)
+    }
+
+    pub fn with(mut self, msg: &Version<'_>) -> roto_runtime::Result<Self> {
+        for item in msg.accessor.raw_fields() {
+            let (field_number, raw_bytes) = item?;
+            let is_written = match field_number {
+                1 => self.major_written,
+                2 => self.minor_written,
+                3 => self.patch_written,
+                4 => self.suffix_written,
+                _ => false,
+            };
+            if !is_written {
+                self.builder.write_raw(raw_bytes)?;
+            }
+        }
+        Ok(self)
+    }
+
+    pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {
+        self.builder.finish()
+    }
+}
+
+#[cfg(feature = "alloc")]
+pub struct OwnedVersion {
+    pub data: bytes::Bytes,
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoOwned for OwnedVersion {
+    type Reader<'a> = Version<'a>;
+    fn reader(&self) -> Version<'_> {
+        Version::new(&self.data).expect("failed to create reader")
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoMessage for OwnedVersion {
+    fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
+        Ok(OwnedVersion { data: buf })
+    }
+
+    fn bytes(&self) -> bytes::Bytes {
+        self.data.clone()
+    }
+}
+
+pub struct CodeGeneratorRequest<'a> {
+    accessor: roto_runtime::ProtoAccessor<'a>,
+    file_to_generate_start: Option<usize>,
+    file_to_generate_end: Option<usize>,
+    parameter_offset: Option<usize>,
+    proto_file_start: Option<usize>,
+    proto_file_end: Option<usize>,
+    source_file_descriptors_start: Option<usize>,
+    source_file_descriptors_end: Option<usize>,
+    compiler_version_offset: Option<usize>,
+}
+
+impl<'a> CodeGeneratorRequest<'a> {
+    pub fn new(data: &'a [u8]) -> roto_runtime::Result<Self> {
+        let accessor = roto_runtime::ProtoAccessor::new(data)?;
+        let mut file_to_generate_start = None;
+        let mut file_to_generate_end = None;
+        let mut parameter_offset = None;
+        let mut proto_file_start = None;
+        let mut proto_file_end = None;
+        let mut source_file_descriptors_start = None;
+        let mut source_file_descriptors_end = None;
+        let mut compiler_version_offset = None;
+        for item in accessor.fields() {
+            let (offset, tag, _) = item?;
+            if tag.field_number == 1 {
+                if file_to_generate_start.is_none() { file_to_generate_start = Some(offset); }
+                file_to_generate_end = Some(offset);
+            }
+            if tag.field_number == 2 { parameter_offset = Some(offset); }
+            if tag.field_number == 15 {
+                if proto_file_start.is_none() { proto_file_start = Some(offset); }
+                proto_file_end = Some(offset);
+            }
+            if tag.field_number == 17 {
+                if source_file_descriptors_start.is_none() { source_file_descriptors_start = Some(offset); }
+                source_file_descriptors_end = Some(offset);
+            }
+            if tag.field_number == 3 { compiler_version_offset = Some(offset); }
+        }
+
+        Ok(Self {
+            accessor,
+file_to_generate_start, file_to_generate_end,
+parameter_offset,
+proto_file_start, proto_file_end,
+source_file_descriptors_start, source_file_descriptors_end,
+compiler_version_offset,
+        })
+    }
+
+    pub fn file_to_generate(&self) -> roto_runtime::RepeatedFieldIterator<'a> {
+        match (self.file_to_generate_start, self.file_to_generate_end) {
+            (Some(start), Some(end)) => self.accessor.iter_repeated_range(1, start, end),
+            _ => self.accessor.iter_repeated(1),
+        }
+    }
+
+    pub fn parameter(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.parameter_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn parameter_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.parameter().or(Ok(""))
+    }
+
+    pub fn has_parameter(&self) -> bool { self.parameter_offset.is_some() }
+
+    pub fn proto_file(&self) -> roto_runtime::RepeatedFieldIterator<'a> {
+        match (self.proto_file_start, self.proto_file_end) {
+            (Some(start), Some(end)) => self.accessor.iter_repeated_range(15, start, end),
+            _ => self.accessor.iter_repeated(15),
+        }
+    }
+
+    pub fn source_file_descriptors(&self) -> roto_runtime::RepeatedFieldIterator<'a> {
+        match (self.source_file_descriptors_start, self.source_file_descriptors_end) {
+            (Some(start), Some(end)) => self.accessor.iter_repeated_range(17, start, end),
+            _ => self.accessor.iter_repeated(17),
+        }
+    }
+
+    pub fn compiler_version(&self) -> roto_runtime::Result<&'a [u8]> {
+        let offset = self.compiler_version_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        Ok(bytes)
+    }
+
+    pub fn compiler_version_or_default(&self) -> roto_runtime::Result<&'a [u8]> {
+        self.compiler_version().or(Ok(&[]))
+    }
+
+    pub fn has_compiler_version(&self) -> bool { self.compiler_version_offset.is_some() }
+
+    pub fn raw_fields(&self) -> roto_runtime::RawFieldIterator<'a> {
+        self.accessor.raw_fields()
+    }
+
+}
+
+pub struct CodeGeneratorRequestBuilder<'b> {
+    builder: roto_runtime::ProtoBuilder<'b>,
+    file_to_generate_written: bool,
+    parameter_written: bool,
+    proto_file_written: bool,
+    source_file_descriptors_written: bool,
+    compiler_version_written: bool,
+}
+
+impl<'b> CodeGeneratorRequestBuilder<'b> {
+    pub fn builder(buf: &mut [u8]) -> CodeGeneratorRequestBuilder<'_> {
+        CodeGeneratorRequestBuilder {
+            builder: roto_runtime::ProtoBuilder::new(buf),
+            file_to_generate_written: false,
+            parameter_written: false,
+            proto_file_written: false,
+            source_file_descriptors_written: false,
+            compiler_version_written: false,
+        }
+    }
+
+    pub fn file_to_generate(mut self, value: &str) -> roto_runtime::Result<Self> {
+        self.builder.write_string(1, value)?;
+        self.file_to_generate_written = true;
+        Ok(self)
+    }
+
+    pub fn parameter(mut self, value: &str) -> roto_runtime::Result<Self> {
+        self.builder.write_string(2, value)?;
+        self.parameter_written = true;
+        Ok(self)
+    }
+
+    pub fn proto_file(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
+        self.builder.write_bytes(15, value)?;
+        self.proto_file_written = true;
+        Ok(self)
+    }
+
+    pub fn source_file_descriptors(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
+        self.builder.write_bytes(17, value)?;
+        self.source_file_descriptors_written = true;
+        Ok(self)
+    }
+
+    pub fn compiler_version(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
+        self.builder.write_bytes(3, value)?;
+        self.compiler_version_written = true;
+        Ok(self)
+    }
+
+    pub fn with(mut self, msg: &CodeGeneratorRequest<'_>) -> roto_runtime::Result<Self> {
+        for item in msg.accessor.raw_fields() {
+            let (field_number, raw_bytes) = item?;
+            let is_written = match field_number {
+                1 => self.file_to_generate_written,
+                2 => self.parameter_written,
+                15 => self.proto_file_written,
+                17 => self.source_file_descriptors_written,
+                3 => self.compiler_version_written,
+                _ => false,
+            };
+            if !is_written {
+                self.builder.write_raw(raw_bytes)?;
+            }
+        }
+        Ok(self)
+    }
+
+    pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {
+        self.builder.finish()
+    }
+}
+
+#[cfg(feature = "alloc")]
+pub struct OwnedCodeGeneratorRequest {
+    pub data: bytes::Bytes,
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoOwned for OwnedCodeGeneratorRequest {
+    type Reader<'a> = CodeGeneratorRequest<'a>;
+    fn reader(&self) -> CodeGeneratorRequest<'_> {
+        CodeGeneratorRequest::new(&self.data).expect("failed to create reader")
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoMessage for OwnedCodeGeneratorRequest {
+    fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
+        Ok(OwnedCodeGeneratorRequest { data: buf })
+    }
+
+    fn bytes(&self) -> bytes::Bytes {
+        self.data.clone()
+    }
+}
+
+pub struct CodeGeneratorResponse<'a> {
+    accessor: roto_runtime::ProtoAccessor<'a>,
+    error_offset: Option<usize>,
+    supported_features_offset: Option<usize>,
+    minimum_edition_offset: Option<usize>,
+    maximum_edition_offset: Option<usize>,
+    file_start: Option<usize>,
+    file_end: Option<usize>,
+}
+
+impl<'a> CodeGeneratorResponse<'a> {
+    pub fn new(data: &'a [u8]) -> roto_runtime::Result<Self> {
+        let accessor = roto_runtime::ProtoAccessor::new(data)?;
+        let mut error_offset = None;
+        let mut supported_features_offset = None;
+        let mut minimum_edition_offset = None;
+        let mut maximum_edition_offset = None;
+        let mut file_start = None;
+        let mut file_end = None;
+        for item in accessor.fields() {
+            let (offset, tag, _) = item?;
+            if tag.field_number == 1 { error_offset = Some(offset); }
+            if tag.field_number == 2 { supported_features_offset = Some(offset); }
+            if tag.field_number == 3 { minimum_edition_offset = Some(offset); }
+            if tag.field_number == 4 { maximum_edition_offset = Some(offset); }
+            if tag.field_number == 15 {
+                if file_start.is_none() { file_start = Some(offset); }
+                file_end = Some(offset);
+            }
+        }
+
+        Ok(Self {
+            accessor,
+error_offset,
+supported_features_offset,
+minimum_edition_offset,
+maximum_edition_offset,
+file_start, file_end,
+        })
+    }
+
+    pub fn error(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.error_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn error_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.error().or(Ok(""))
+    }
+
+    pub fn has_error(&self) -> bool { self.error_offset.is_some() }
+
+    pub fn supported_features(&self) -> roto_runtime::Result<u32> {
+        let offset = self.supported_features_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as u32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn supported_features_or_default(&self) -> roto_runtime::Result<u32> {
+        self.supported_features().or(Ok(0))
+    }
+
+    pub fn has_supported_features(&self) -> bool { self.supported_features_offset.is_some() }
+
+    pub fn minimum_edition(&self) -> roto_runtime::Result<i32> {
+        let offset = self.minimum_edition_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn minimum_edition_or_default(&self) -> roto_runtime::Result<i32> {
+        self.minimum_edition().or(Ok(0))
+    }
+
+    pub fn has_minimum_edition(&self) -> bool { self.minimum_edition_offset.is_some() }
+
+    pub fn maximum_edition(&self) -> roto_runtime::Result<i32> {
+        let offset = self.maximum_edition_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        roto_runtime::read_varint(bytes).map(|(v, _)| v as i32).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn maximum_edition_or_default(&self) -> roto_runtime::Result<i32> {
+        self.maximum_edition().or(Ok(0))
+    }
+
+    pub fn has_maximum_edition(&self) -> bool { self.maximum_edition_offset.is_some() }
+
+    pub fn file(&self) -> roto_runtime::RepeatedFieldIterator<'a> {
+        match (self.file_start, self.file_end) {
+            (Some(start), Some(end)) => self.accessor.iter_repeated_range(15, start, end),
+            _ => self.accessor.iter_repeated(15),
+        }
+    }
+
+    pub fn raw_fields(&self) -> roto_runtime::RawFieldIterator<'a> {
+        self.accessor.raw_fields()
+    }
+
+}
+
+pub struct CodeGeneratorResponseBuilder<'b> {
+    builder: roto_runtime::ProtoBuilder<'b>,
+    error_written: bool,
+    supported_features_written: bool,
+    minimum_edition_written: bool,
+    maximum_edition_written: bool,
+    file_written: bool,
+}
+
+impl<'b> CodeGeneratorResponseBuilder<'b> {
+    pub fn builder(buf: &mut [u8]) -> CodeGeneratorResponseBuilder<'_> {
+        CodeGeneratorResponseBuilder {
+            builder: roto_runtime::ProtoBuilder::new(buf),
+            error_written: false,
+            supported_features_written: false,
+            minimum_edition_written: false,
+            maximum_edition_written: false,
+            file_written: false,
+        }
+    }
+
+    pub fn error(mut self, value: &str) -> roto_runtime::Result<Self> {
+        self.builder.write_string(1, value)?;
+        self.error_written = true;
+        Ok(self)
+    }
+
+    pub fn supported_features(mut self, value: u64) -> roto_runtime::Result<Self> {
+        self.builder.write_varint(2, value)?;
+        self.supported_features_written = true;
+        Ok(self)
+    }
+
+    pub fn minimum_edition(mut self, value: i32) -> roto_runtime::Result<Self> {
+        self.builder.write_int32(3, value)?;
+        self.minimum_edition_written = true;
+        Ok(self)
+    }
+
+    pub fn maximum_edition(mut self, value: i32) -> roto_runtime::Result<Self> {
+        self.builder.write_int32(4, value)?;
+        self.maximum_edition_written = true;
+        Ok(self)
+    }
+
+    pub fn file(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
+        self.builder.write_bytes(15, value)?;
+        self.file_written = true;
+        Ok(self)
+    }
+
+    pub fn with(mut self, msg: &CodeGeneratorResponse<'_>) -> roto_runtime::Result<Self> {
+        for item in msg.accessor.raw_fields() {
+            let (field_number, raw_bytes) = item?;
+            let is_written = match field_number {
+                1 => self.error_written,
+                2 => self.supported_features_written,
+                3 => self.minimum_edition_written,
+                4 => self.maximum_edition_written,
+                15 => self.file_written,
+                _ => false,
+            };
+            if !is_written {
+                self.builder.write_raw(raw_bytes)?;
+            }
+        }
+        Ok(self)
+    }
+
+    pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {
+        self.builder.finish()
+    }
+}
+
+#[cfg(feature = "alloc")]
+pub struct OwnedCodeGeneratorResponse {
+    pub data: bytes::Bytes,
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoOwned for OwnedCodeGeneratorResponse {
+    type Reader<'a> = CodeGeneratorResponse<'a>;
+    fn reader(&self) -> CodeGeneratorResponse<'_> {
+        CodeGeneratorResponse::new(&self.data).expect("failed to create reader")
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoMessage for OwnedCodeGeneratorResponse {
+    fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
+        Ok(OwnedCodeGeneratorResponse { data: buf })
+    }
+
+    fn bytes(&self) -> bytes::Bytes {
+        self.data.clone()
+    }
+}
+
+pub mod code_generator_response {
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[repr(i32)]
+pub enum Feature {
+    FEATURENONE = 0,
+    FEATUREPROTO3OPTIONAL = 1,
+    FEATURESUPPORTSEDITIONS = 2,
+}
+
+impl Feature {
+    pub fn from_i32(value: i32) -> Self {
+        match value {
+            0 => Feature::FEATURENONE,
+            1 => Feature::FEATUREPROTO3OPTIONAL,
+            2 => Feature::FEATURESUPPORTSEDITIONS,
+            _ => Feature::FEATURENONE,
+        }
+    }
+}
+
+pub struct File<'a> {
+    accessor: roto_runtime::ProtoAccessor<'a>,
+    name_offset: Option<usize>,
+    insertion_point_offset: Option<usize>,
+    content_offset: Option<usize>,
+    generated_code_info_offset: Option<usize>,
+}
+
+impl<'a> File<'a> {
+    pub fn new(data: &'a [u8]) -> roto_runtime::Result<Self> {
+        let accessor = roto_runtime::ProtoAccessor::new(data)?;
+        let mut name_offset = None;
+        let mut insertion_point_offset = None;
+        let mut content_offset = None;
+        let mut generated_code_info_offset = None;
+        for item in accessor.fields() {
+            let (offset, tag, _) = item?;
+            if tag.field_number == 1 { name_offset = Some(offset); }
+            if tag.field_number == 2 { insertion_point_offset = Some(offset); }
+            if tag.field_number == 15 { content_offset = Some(offset); }
+            if tag.field_number == 16 { generated_code_info_offset = Some(offset); }
+        }
+
+        Ok(Self {
+            accessor,
+name_offset,
+insertion_point_offset,
+content_offset,
+generated_code_info_offset,
+        })
+    }
+
+    pub fn name(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.name_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn name_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.name().or(Ok(""))
+    }
+
+    pub fn has_name(&self) -> bool { self.name_offset.is_some() }
+
+    pub fn insertion_point(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.insertion_point_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn insertion_point_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.insertion_point().or(Ok(""))
+    }
+
+    pub fn has_insertion_point(&self) -> bool { self.insertion_point_offset.is_some() }
+
+    pub fn content(&self) -> roto_runtime::Result<&'a str> {
+        let offset = self.content_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        core::str::from_utf8(bytes).map_err(|_| roto_runtime::RotoError::WireFormatViolation)
+    }
+
+    pub fn content_or_default(&self) -> roto_runtime::Result<&'a str> {
+        self.content().or(Ok(""))
+    }
+
+    pub fn has_content(&self) -> bool { self.content_offset.is_some() }
+
+    pub fn generated_code_info(&self) -> roto_runtime::Result<&'a [u8]> {
+        let offset = self.generated_code_info_offset.ok_or(roto_runtime::RotoError::FieldNotFound)?;
+        let (bytes, _) = self.accessor.get_value_at(offset)?;
+        Ok(bytes)
+    }
+
+    pub fn generated_code_info_or_default(&self) -> roto_runtime::Result<&'a [u8]> {
+        self.generated_code_info().or(Ok(&[]))
+    }
+
+    pub fn has_generated_code_info(&self) -> bool { self.generated_code_info_offset.is_some() }
+
+    pub fn raw_fields(&self) -> roto_runtime::RawFieldIterator<'a> {
+        self.accessor.raw_fields()
+    }
+
+}
+
+pub struct FileBuilder<'b> {
+    builder: roto_runtime::ProtoBuilder<'b>,
+    name_written: bool,
+    insertion_point_written: bool,
+    content_written: bool,
+    generated_code_info_written: bool,
+}
+
+impl<'b> FileBuilder<'b> {
+    pub fn builder(buf: &mut [u8]) -> FileBuilder<'_> {
+        FileBuilder {
+            builder: roto_runtime::ProtoBuilder::new(buf),
+            name_written: false,
+            insertion_point_written: false,
+            content_written: false,
+            generated_code_info_written: false,
+        }
+    }
+
+    pub fn name(mut self, value: &str) -> roto_runtime::Result<Self> {
+        self.builder.write_string(1, value)?;
+        self.name_written = true;
+        Ok(self)
+    }
+
+    pub fn insertion_point(mut self, value: &str) -> roto_runtime::Result<Self> {
+        self.builder.write_string(2, value)?;
+        self.insertion_point_written = true;
+        Ok(self)
+    }
+
+    pub fn content(mut self, value: &str) -> roto_runtime::Result<Self> {
+        self.builder.write_string(15, value)?;
+        self.content_written = true;
+        Ok(self)
+    }
+
+    pub fn generated_code_info(mut self, value: &[u8]) -> roto_runtime::Result<Self> {
+        self.builder.write_bytes(16, value)?;
+        self.generated_code_info_written = true;
+        Ok(self)
+    }
+
+    pub fn with(mut self, msg: &File<'_>) -> roto_runtime::Result<Self> {
+        for item in msg.accessor.raw_fields() {
+            let (field_number, raw_bytes) = item?;
+            let is_written = match field_number {
+                1 => self.name_written,
+                2 => self.insertion_point_written,
+                15 => self.content_written,
+                16 => self.generated_code_info_written,
+                _ => false,
+            };
+            if !is_written {
+                self.builder.write_raw(raw_bytes)?;
+            }
+        }
+        Ok(self)
+    }
+
+    pub fn finish(self) -> roto_runtime::Result<&'b mut [u8]> {
+        self.builder.finish()
+    }
+}
+
+#[cfg(feature = "alloc")]
+pub struct OwnedFile {
+    pub data: bytes::Bytes,
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoOwned for OwnedFile {
+    type Reader<'a> = File<'a>;
+    fn reader(&self) -> File<'_> {
+        File::new(&self.data).expect("failed to create reader")
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl roto_runtime::RotoMessage for OwnedFile {
+    fn decode(buf: bytes::Bytes) -> roto_runtime::Result<Self> {
+        Ok(OwnedFile { data: buf })
+    }
+
+    fn bytes(&self) -> bytes::Bytes {
+        self.data.clone()
+    }
+}
+
+}
+
+
+use crate::google::protobuf::descriptor;
+