writeln!(w, "pub struct {} {{", mangled_container).unwrap();
for (idx, ty) in types.iter().enumerate() {
writeln!(w, "\t/// The element at position {}", idx).unwrap();
- writeln!(w, "\tpub {}: {},", ('a' as u8 + idx as u8) as char, ty).unwrap();
+ if ty.starts_with("&'static ") {
+ writeln!(w, "\tpub {}: {},", ('a' as u8 + idx as u8) as char, &ty[9..]).unwrap();
+ } else {
+ writeln!(w, "\tpub {}: {},", ('a' as u8 + idx as u8) as char, ty).unwrap();
+ }
}
writeln!(w, "}}").unwrap();
let mut tuple_str = "(".to_owned();
for (idx, ty) in types.iter().enumerate() {
if idx != 0 { tuple_str += ", "; }
- tuple_str += ty;
+ if ty.starts_with("&'static ") {
+ tuple_str += &ty[9..];
+ } else {
+ tuple_str += ty;
+ }
}
tuple_str += ")";
writeln!(w, "impl Clone for {} {{", mangled_container).unwrap();
writeln!(w, "\tfn clone(&self) -> Self {{").unwrap();
writeln!(w, "\t\tSelf {{").unwrap();
- for idx in 0..types.len() {
- writeln!(w, "\t\t\t{}: Clone::clone(&self.{}),", ('a' as u8 + idx as u8) as char, ('a' as u8 + idx as u8) as char).unwrap();
+ for (idx, ty) in types.iter().enumerate() {
+ if ty.starts_with("&'static ") {
+ // Assume blindly the type is opaque. If its not we'll fail to build.
+ // Really we should never have derived structs with a reference type.
+ write!(w, "\t\t\t{}: {} {{ inner: self.{}.inner, is_owned: false}},", ('a' as u8 + idx as u8) as char, &ty[9..], ('a' as u8 + idx as u8) as char).unwrap();
+ } else{
+ writeln!(w, "\t\t\t{}: Clone::clone(&self.{}),", ('a' as u8 + idx as u8) as char, ('a' as u8 + idx as u8) as char).unwrap();
+ }
}
writeln!(w, "\t\t}}").unwrap();
writeln!(w, "\t}}").unwrap();
}
writeln!(w, ") -> {} {{", mangled_container).unwrap();
write!(w, "\t{} {{ ", mangled_container).unwrap();
- for idx in 0..types.len() {
- write!(w, "{}, ", ('a' as u8 + idx as u8) as char).unwrap();
+ for (idx, ty) in types.iter().enumerate() {
+ if ty.starts_with("&'static ") {
+ // Assume blindly the type is opaque. If its not we'll fail to build.
+ // Really we should never have derived structs with a reference type.
+ write!(w, "{}: {} {{ inner: {}.inner, is_owned: false}}, ", ('a' as u8 + idx as u8) as char, &ty[9..], ('a' as u8 + idx as u8) as char).unwrap();
+ } else {
+ write!(w, "{}, ", ('a' as u8 + idx as u8) as char).unwrap();
+ }
}
writeln!(w, "}}\n}}\n").unwrap();
pub fn maybe_write_generics<W: std::io::Write>(w: &mut W, generics: &syn::Generics, types: &TypeResolver, concrete_lifetimes: bool) {
let mut gen_types = GenericTypes::new(None);
assert!(gen_types.learn_generics(generics, types));
- if !generics.params.is_empty() {
- write!(w, "<").unwrap();
- for (idx, generic) in generics.params.iter().enumerate() {
- match generic {
- syn::GenericParam::Type(type_param) => {
- write!(w, "{}", if idx != 0 { ", " } else { "" }).unwrap();
- let type_ident = &type_param.ident;
- types.write_c_type_in_generic_param(w, &syn::parse_quote!(#type_ident), Some(&gen_types), false);
- },
- syn::GenericParam::Lifetime(lt) => {
- if concrete_lifetimes {
- write!(w, "'static").unwrap();
- } else {
- write!(w, "{}'{}", if idx != 0 { ", " } else { "" }, lt.lifetime.ident).unwrap();
+ if generics.params.is_empty() { return; }
+ for generic in generics.params.iter() {
+ match generic {
+ syn::GenericParam::Type(type_param) => {
+ for bound in type_param.bounds.iter() {
+ match bound {
+ syn::TypeParamBound::Trait(t) => {
+ if let Some(trait_bound) = types.maybe_resolve_path(&t.path, None) {
+ if types.skip_path(&trait_bound) {
+ // Just hope rust deduces generic params if some bounds are skipable.
+ return;
+ }
+ }
+ }
+ _ => {},
}
- },
- _ => unimplemented!(),
+ }
}
+ _ => {},
+ }
+ }
+
+ write!(w, "<").unwrap();
+ for (idx, generic) in generics.params.iter().enumerate() {
+ match generic {
+ syn::GenericParam::Type(type_param) => {
+ write!(w, "{}", if idx != 0 { ", " } else { "" }).unwrap();
+ let type_ident = &type_param.ident;
+ types.write_c_type_in_generic_param(w, &syn::parse_quote!(#type_ident), Some(&gen_types), false);
+ },
+ syn::GenericParam::Lifetime(lt) => {
+ if concrete_lifetimes {
+ write!(w, "'static").unwrap();
+ } else {
+ write!(w, "{}'{}", if idx != 0 { ", " } else { "" }, lt.lifetime.ident).unwrap();
+ }
+ },
+ _ => unimplemented!(),
}
- write!(w, ">").unwrap();
}
+ write!(w, ">").unwrap();
}
pub fn maybe_write_lifetime_generics<W: std::io::Write>(w: &mut W, generics: &syn::Generics, types: &TypeResolver) {