Do not make `Deref<T>` generic params always a `&T` for traits.

[ldk-c-bindings] / c-bindings-gen / src / types.rs

diff --git a/c-bindings-gen/src/types.rs b/c-bindings-gen/src/types.rs
index 494a0ceec330b9c01d0cc30c7353ea18052ea9d3..598552102f3691ba9f50839ad1e6cda673700e54 100644 (file)
--- a/c-bindings-gen/src/types.rs
+++ b/c-bindings-gen/src/types.rs
@@ -268,7 +268,8 @@ impl<'a, 'p: 'a> GenericTypes<'a, 'p> {
                                                if p.qself.is_some() { return false; }
                                                if p.path.leading_colon.is_some() { return false; }
                                                let mut p_iter = p.path.segments.iter();
-                                               if let Some(gen) = new_typed_generics.get_mut(&p_iter.next().unwrap().ident) {
+                                               let p_ident = &p_iter.next().unwrap().ident;
+                                               if let Some(gen) = new_typed_generics.get_mut(p_ident) {
                                                        if gen.is_some() { return false; }
                                                        if &format!("{}", p_iter.next().unwrap().ident) != "Target" {return false; }
 
@@ -281,7 +282,18 @@ impl<'a, 'p: 'a> GenericTypes<'a, 'p> {
                                                                        if non_lifetimes_processed { return false; }
                                                                        non_lifetimes_processed = true;
                                                                        assert_simple_bound(&trait_bound);
-                                                                       *gen = Some(types.resolve_path(&trait_bound.path, None));
+                                                                       let resolved = types.resolve_path(&trait_bound.path, None);
+                                                                       let ty = syn::Type::Path(syn::TypePath {
+                                                                               qself: None, path: string_path_to_syn_path(&resolved)
+                                                                       });
+                                                                       let ref_ty = parse_quote!(&#ty);
+                                                                       if types.crate_types.traits.get(&resolved).is_some() {
+                                                                               self.default_generics.insert(p_ident, (ty, ref_ty));
+                                                                       } else {
+                                                                               self.default_generics.insert(p_ident, (ref_ty.clone(), ref_ty));
+                                                                       }
+
+                                                                       *gen = Some(resolved);
                                                                }
                                                        }
                                                } else { return false; }
@@ -438,6 +450,10 @@ impl<'mod_lifetime, 'crate_lft: 'mod_lifetime> ImportResolver<'mod_lifetime, 'cr
                                        new_path = format!("{}::{}{}", crate_name, $ident, $path_suffix);
                                        let crate_name_ident = format_ident!("{}", crate_name);
                                        path.push(parse_quote!(#crate_name_ident));
+                               } else if format!("{}", $ident) == "self" {
+                                       let mut path_iter = partial_path.rsplitn(2, "::");
+                                       path_iter.next().unwrap();
+                                       new_path = path_iter.next().unwrap().to_owned();
                                } else {
                                        new_path = format!("{}{}{}", partial_path, $ident, $path_suffix);
                                }
@@ -452,7 +468,8 @@ impl<'mod_lifetime, 'crate_lft: 'mod_lifetime> ImportResolver<'mod_lifetime, 'cr
                        },
                        syn::UseTree::Name(n) => {
                                push_path!(n.ident, "");
-                               imports.insert(n.ident.clone(), (new_path, syn::Path { leading_colon: Some(syn::Token![::](Span::call_site())), segments: path }));
+                               let imported_ident = syn::Ident::new(new_path.rsplitn(2, "::").next().unwrap(), Span::call_site());
+                               imports.insert(imported_ident, (new_path, syn::Path { leading_colon: Some(syn::Token![::](Span::call_site())), segments: path }));
                        },
                        syn::UseTree::Group(g) => {
                                for i in g.items.iter() {
@@ -1503,7 +1520,7 @@ impl<'a, 'c: 'a> TypeResolver<'a, 'c> {
 
                                if let Some(t) = single_contained {
                                        match t {
-                                               syn::Type::Reference(_)|syn::Type::Path(_)|syn::Type::Slice(_) => {
+                                               syn::Type::Reference(_)|syn::Type::Path(_)|syn::Type::Slice(_)|syn::Type::Array(_) => {
                                                        let mut v = Vec::new();
                                                        let ret_ref = self.write_empty_rust_val_check_suffix(generics, &mut v, t);
                                                        let s = String::from_utf8(v).unwrap();
@@ -1799,7 +1816,6 @@ impl<'a, 'c: 'a> TypeResolver<'a, 'c> {
                        syn::Type::Path(p) => {
                                let resolved = self.resolve_path(&p.path, generics);
                                if let Some(arr_ty) = self.is_real_type_array(&resolved) {
-                                       write!(w, ".data").unwrap();
                                        return self.write_empty_rust_val_check_suffix(generics, w, &arr_ty);
                                }
                                if self.crate_types.opaques.get(&resolved).is_some() {
@@ -1819,7 +1835,7 @@ impl<'a, 'c: 'a> TypeResolver<'a, 'c> {
                        syn::Type::Array(a) => {
                                if let syn::Expr::Lit(l) = &a.len {
                                        if let syn::Lit::Int(i) = &l.lit {
-                                               write!(w, " == [0; {}]", i.base10_digits()).unwrap();
+                                               write!(w, ".data == [0; {}]", i.base10_digits()).unwrap();
                                                EmptyValExpectedTy::NonPointer
                                        } else { unimplemented!(); }
                                } else { unimplemented!(); }