Struct Codegen 

pub struct Codegen { /* private fields */ }

Builder for pure-Rust Protocol Buffers and ttrpc code generation.

Implementations

impl Codegen

pub fn new() -> Self

Creates an empty code generation builder.

pub fn out_dir(&mut self, out_dir: impl AsRef<Path>) -> &mut Self

Sets the output directory.

pub fn include(&mut self, include: impl AsRef<Path>) -> &mut Self

Adds a directory searched for imported .proto files.

Canonical Google well-known type imports are resolved automatically and do not need to be present in an include directory.

pub fn includes( &mut self, includes: impl IntoIterator<Item = impl AsRef<Path>>, ) -> &mut Self

Adds directories searched for imported .proto files.

pub fn input(&mut self, input: impl AsRef<Path>) -> &mut Self

Adds a .proto file to compile.

pub fn inputs( &mut self, inputs: impl IntoIterator<Item = impl AsRef<Path>>, ) -> &mut Self

Adds .proto files to compile.

pub fn rust_protobuf(&mut self) -> &mut Self

Enables generation of rust-protobuf message types alongside ttrpc services.

pub fn rust_protobuf_customize( &mut self, customize: ProtobufCustomize, ) -> &mut Self

Sets the rust-protobuf code generation options.

pub fn rust_protobuf_customize_callback( &mut self, customize: impl ProtobufCustomizeCallback, ) -> &mut Self

Sets a callback for per-element rust-protobuf customization.

pub fn customize(&mut self, customize: Customize) -> &mut Self

Sets ttrpc client and server generation options.

pub fn run(&mut self) -> Result<()>

Parses the configured inputs and writes generated Rust files.

This is equivalent to a protoc-based generation step but does not require protoc or protoc-gen-rust in PATH.

Errors

Returns an error if an input cannot be read or parsed, imports or types cannot be resolved, or generated service files cannot be written.

Panics

Panics if rust_protobuf generation is enabled and message generation fails.

Trait Implementations

impl Debug for Codegen

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Codegen

fn default() -> Self

Returns the “default value” for a type.