blob: b3415ab003f1e8758f6d03d8a19feda47a61b685 [file] [log] [blame]
use protobuf::descriptor::EnumOptions;
use protobuf::descriptor::FieldOptions;
use protobuf::descriptor::FileOptions;
use protobuf::descriptor::MessageOptions;
use protobuf::rustproto;
/// Specifies style of generated code.
#[derive(Default, Debug, Clone)]
pub struct Customize {
/// Make oneof enum public.
pub expose_oneof: Option<bool>,
/// When true all fields are public, and accessors are not generated
pub expose_fields: Option<bool>,
/// When false, `get_`, `set_`, `mut_` etc. accessors are not generated
pub generate_accessors: Option<bool>,
/// Use `bytes::Bytes` for `bytes` fields
pub carllerche_bytes_for_bytes: Option<bool>,
/// Use `bytes::Bytes` for `string` fields
pub carllerche_bytes_for_string: Option<bool>,
/// Implement serde_derive for messages
pub serde_derive: Option<bool>,
/// When `serde_derive` is set, serde annotations will be guarded with `#[cfg(cfg, ...)]`.
pub serde_derive_cfg: Option<String>,
/// When `serde_derive` is set, use attribute rename_all
pub serde_rename_all: Option<String>,
/// Enable lite runtime
pub lite_runtime: Option<bool>,
/// Generate `mod.rs` in the output directory.
///
/// This option allows inclusion of generated files from cargo output directory.
///
/// This option will likely be on by default in rust-protobuf version 3.
pub gen_mod_rs: Option<bool>,
/// Used internally to generate protos bundled in protobuf crate
/// like `descriptor.proto`
pub inside_protobuf: Option<bool>,
// When adding more options please keep in sync with `parse_from_parameter` below.
/// Make sure `Customize` is always used with `..Default::default()`
/// for future compatibility.
pub _future_options: (),
}
#[derive(Debug)]
pub enum CustomizeParseParameterError {
EqNotFound,
CannotParseBool,
UnknownOptionName(String),
}
pub type CustomizeParseParameterResult<T> = Result<T, CustomizeParseParameterError>;
impl Customize {
/// Update fields of self with fields defined in other customize
pub fn update_with(&mut self, that: &Customize) {
if let Some(v) = that.expose_oneof {
self.expose_oneof = Some(v);
}
if let Some(v) = that.expose_fields {
self.expose_fields = Some(v);
}
if let Some(v) = that.generate_accessors {
self.generate_accessors = Some(v);
}
if let Some(v) = that.carllerche_bytes_for_bytes {
self.carllerche_bytes_for_bytes = Some(v);
}
if let Some(v) = that.carllerche_bytes_for_string {
self.carllerche_bytes_for_string = Some(v);
}
if let Some(v) = that.serde_derive {
self.serde_derive = Some(v);
}
if let Some(ref v) = that.serde_derive_cfg {
self.serde_derive_cfg = Some(v.clone());
}
if let Some(ref v) = that.serde_rename_all {
self.serde_rename_all = Some(v.clone());
}
if let Some(v) = that.lite_runtime {
self.lite_runtime = Some(v);
}
if let Some(v) = that.gen_mod_rs {
self.gen_mod_rs = Some(v);
}
if let Some(v) = that.inside_protobuf {
self.inside_protobuf = Some(v);
}
}
/// Update unset fields of self with fields from other customize
pub fn set_defaults_from(&mut self, other: &Customize) {
let mut tmp = other.clone();
tmp.update_with(self);
*self = tmp;
}
/// Parse customize options from a string passed via protoc flag.
pub fn parse_from_parameter(parameter: &str) -> CustomizeParseParameterResult<Customize> {
fn parse_bool(v: &str) -> CustomizeParseParameterResult<bool> {
v.parse()
.map_err(|_| CustomizeParseParameterError::CannotParseBool)
}
let mut r = Customize::default();
for nv in parameter.split_whitespace() {
let eq = match nv.find('=') {
Some(eq) => eq,
None => return Err(CustomizeParseParameterError::EqNotFound),
};
let n = &nv[..eq];
let v = &nv[eq + 1..];
if n == "expose_oneof" {
r.expose_oneof = Some(parse_bool(v)?);
} else if n == "expose_fields" {
r.expose_fields = Some(parse_bool(v)?);
} else if n == "generate_accessors" {
r.generate_accessors = Some(parse_bool(v)?);
} else if n == "carllerche_bytes_for_bytes" {
r.carllerche_bytes_for_bytes = Some(parse_bool(v)?);
} else if n == "carllerche_bytes_for_string" {
r.carllerche_bytes_for_string = Some(parse_bool(v)?);
} else if n == "serde_derive" {
r.serde_derive = Some(parse_bool(v)?);
} else if n == "serde_derive_cfg" {
r.serde_derive_cfg = Some(v.to_owned());
} else if n == "serde_rename_all" {
r.serde_rename_all = Some(v.to_owned());
} else if n == "lite_runtime" {
r.lite_runtime = Some(parse_bool(v)?);
} else if n == "gen_mod_rs" {
r.gen_mod_rs = Some(parse_bool(v)?);
} else if n == "inside_protobuf" {
r.inside_protobuf = Some(parse_bool(v)?);
} else {
return Err(CustomizeParseParameterError::UnknownOptionName(
n.to_owned(),
));
}
}
Ok(r)
}
}
pub fn customize_from_rustproto_for_message(source: &MessageOptions) -> Customize {
let expose_oneof = rustproto::exts::expose_oneof.get(source);
let expose_fields = rustproto::exts::expose_fields.get(source);
let generate_accessors = rustproto::exts::generate_accessors.get(source);
let carllerche_bytes_for_bytes = rustproto::exts::carllerche_bytes_for_bytes.get(source);
let carllerche_bytes_for_string = rustproto::exts::carllerche_bytes_for_string.get(source);
let serde_derive = rustproto::exts::serde_derive.get(source);
let serde_derive_cfg = rustproto::exts::serde_derive_cfg.get(source);
let lite_runtime = None;
let gen_mod_rs = None;
let inside_protobuf = None;
let serde_rename_all = None;
Customize {
expose_oneof,
expose_fields,
generate_accessors,
carllerche_bytes_for_bytes,
carllerche_bytes_for_string,
serde_derive,
serde_derive_cfg,
serde_rename_all,
lite_runtime,
gen_mod_rs,
inside_protobuf,
_future_options: (),
}
}
pub fn customize_from_rustproto_for_enum(source: &EnumOptions) -> Customize {
let serde_rename_all = rustproto::exts::serde_rename_all.get(source);
let mut r = Customize::default();
r.serde_rename_all = serde_rename_all;
return r;
}
pub fn customize_from_rustproto_for_field(source: &FieldOptions) -> Customize {
let expose_oneof = None;
let expose_fields = rustproto::exts::expose_fields_field.get(source);
let generate_accessors = rustproto::exts::generate_accessors_field.get(source);
let carllerche_bytes_for_bytes = rustproto::exts::carllerche_bytes_for_bytes_field.get(source);
let carllerche_bytes_for_string =
rustproto::exts::carllerche_bytes_for_string_field.get(source);
let serde_rename_all = None;
let serde_derive = None;
let serde_derive_cfg = None;
let lite_runtime = None;
let gen_mod_rs = None;
let inside_protobuf = None;
Customize {
expose_oneof,
expose_fields,
generate_accessors,
carllerche_bytes_for_bytes,
carllerche_bytes_for_string,
serde_derive,
serde_derive_cfg,
serde_rename_all,
lite_runtime,
gen_mod_rs,
inside_protobuf,
_future_options: (),
}
}
pub fn customize_from_rustproto_for_file(source: &FileOptions) -> Customize {
let expose_oneof = rustproto::exts::expose_oneof_all.get(source);
let expose_fields = rustproto::exts::expose_fields_all.get(source);
let generate_accessors = rustproto::exts::generate_accessors_all.get(source);
let carllerche_bytes_for_bytes = rustproto::exts::carllerche_bytes_for_bytes_all.get(source);
let carllerche_bytes_for_string = rustproto::exts::carllerche_bytes_for_string_all.get(source);
let serde_derive = rustproto::exts::serde_derive_all.get(source);
let serde_derive_cfg = rustproto::exts::serde_derive_cfg_all.get(source);
let lite_runtime = rustproto::exts::lite_runtime_all.get(source);
let gen_mod_rs = None;
let inside_protobuf = None;
let serde_rename_all = None;
Customize {
expose_oneof,
expose_fields,
generate_accessors,
carllerche_bytes_for_bytes,
carllerche_bytes_for_string,
serde_derive,
serde_derive_cfg,
serde_rename_all,
lite_runtime,
inside_protobuf,
gen_mod_rs,
_future_options: (),
}
}