/
code_gen.rs
120 lines (106 loc) · 3.79 KB
/
code_gen.rs
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use std::collections::HashSet;
use proc_macro2::TokenStream;
use crate::{Attributes, Service};
/// Builder for the generic code generation of server and clients.
#[derive(Debug)]
pub struct CodeGenBuilder {
emit_package: bool,
compile_well_known_types: bool,
attributes: Attributes,
build_transport: bool,
disable_comments: HashSet<String>,
use_arc_self: bool,
generate_default_stubs: bool,
}
impl CodeGenBuilder {
/// Create a new code gen builder with default options.
pub fn new() -> Self {
Default::default()
}
/// Enable code generation to emit the package name.
pub fn emit_package(&mut self, enable: bool) -> &mut Self {
self.emit_package = enable;
self
}
/// Attributes that will be added to `mod` and `struct` items.
///
/// Reference [`Attributes`] for more information.
pub fn attributes(&mut self, attributes: Attributes) -> &mut Self {
self.attributes = attributes;
self
}
/// Enable transport code to be generated, this requires `tonic`'s `transport`
/// feature.
///
/// This allows codegen level control of generating the transport code and
/// is a work around when other crates in a workspace enable this feature.
pub fn build_transport(&mut self, build_transport: bool) -> &mut Self {
self.build_transport = build_transport;
self
}
/// Enable compiling well knonw types, this will force codegen to not
/// use the well known types from `prost-types`.
pub fn compile_well_known_types(&mut self, enable: bool) -> &mut Self {
self.compile_well_known_types = enable;
self
}
/// Disable comments based on a proto path.
pub fn disable_comments(&mut self, disable_comments: HashSet<String>) -> &mut Self {
self.disable_comments = disable_comments;
self
}
/// Emit `Arc<Self>` instead of `&self` in service trait.
pub fn use_arc_self(&mut self, enable: bool) -> &mut Self {
self.use_arc_self = enable;
self
}
/// Enable or disable returning automatic unimplemented gRPC error code for generated traits.
pub fn generate_default_stubs(&mut self, generate_default_stubs: bool) -> &mut Self {
self.generate_default_stubs = generate_default_stubs;
self
}
/// Generate client code based on `Service`.
///
/// This takes some `Service` and will generate a `TokenStream` that contains
/// a public module with the generated client.
pub fn generate_client(&self, service: &impl Service, proto_path: &str) -> TokenStream {
crate::client::generate_internal(
service,
self.emit_package,
proto_path,
self.compile_well_known_types,
self.build_transport,
&self.attributes,
&self.disable_comments,
)
}
/// Generate server code based on `Service`.
///
/// This takes some `Service` and will generate a `TokenStream` that contains
/// a public module with the generated client.
pub fn generate_server(&self, service: &impl Service, proto_path: &str) -> TokenStream {
crate::server::generate_internal(
service,
self.emit_package,
proto_path,
self.compile_well_known_types,
&self.attributes,
&self.disable_comments,
self.use_arc_self,
self.generate_default_stubs,
)
}
}
impl Default for CodeGenBuilder {
fn default() -> Self {
Self {
emit_package: true,
compile_well_known_types: false,
attributes: Attributes::default(),
build_transport: true,
disable_comments: HashSet::default(),
use_arc_self: false,
generate_default_stubs: false,
}
}
}