Merge pull request #84 from TheBlueMatt/main

[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 1a737d17cf11203ef1720015164d75ed7e3dd060..c6d69cc42686492825f18c34b15b4393c40ddef2 100644 (file)
--- a/c-bindings-gen/src/types.rs
+++ b/c-bindings-gen/src/types.rs
@@ -1477,12 +1477,18 @@ impl<'a, 'c: 'a> TypeResolver<'a, 'c> {
                                }
                                if let Some(t) = single_contained {
                                        if let syn::Type::Tuple(syn::TypeTuple { elems, .. }) = t {
-                                               assert!(elems.is_empty());
                                                let inner_name = self.get_c_mangled_container_type(vec![single_contained.unwrap()], generics, "Option").unwrap();
-                                               return Some(("if ", vec![
-                                                       (format!(".is_none() {{ {}::None }} else {{ {}::Some /*",
-                                                               inner_name, inner_name), format!(""))
-                                                       ], " */}", ContainerPrefixLocation::PerConv));
+                                               if elems.is_empty() {
+                                                       return Some(("if ", vec![
+                                                               (format!(".is_none() {{ {}::None }} else {{ {}::Some /* ",
+                                                                       inner_name, inner_name), format!(""))
+                                                               ], " */ }", ContainerPrefixLocation::PerConv));
+                                               } else {
+                                                       return Some(("if ", vec![
+                                                               (format!(".is_none() {{ {}::None }} else {{ {}::Some(",
+                                                                       inner_name, inner_name), format!("({}.unwrap())", var_access))
+                                                               ], ") }", ContainerPrefixLocation::PerConv));
+                                               }
                                        }
                                        if let syn::Type::Reference(syn::TypeReference { elem, .. }) = t {
                                                if let syn::Type::Slice(_) = &**elem {
@@ -2039,6 +2045,8 @@ impl<'a, 'c: 'a> TypeResolver<'a, 'c> {
                                                        write!(w, "{}", sliceconv(false, None)).unwrap();
                                                }
                                        }
+                               } else if let syn::Type::Array(_) = &*s.elem {
+                                       write!(w, "{}", sliceconv(false, Some(".map(|a| *a)"))).unwrap();
                                } else { unimplemented!(); }
                        },
                        syn::Type::Tuple(t) => {
@@ -2391,6 +2399,12 @@ impl<'a, 'c: 'a> TypeResolver<'a, 'c> {
                                        ptr_for_ref = true;
                                        convert_container!("Slice", 1, || ty.iter());
                                        unimplemented!("convert_container should return true as container_lookup should succeed for slices");
+                               } else if let syn::Type::Array(_) = &*s.elem {
+                                       is_ref = false;
+                                       ptr_for_ref = true;
+                                       let arr_elem = [(*s.elem).clone()];
+                                       convert_container!("Slice", 1, || arr_elem.iter());
+                                       unimplemented!("convert_container should return true as container_lookup should succeed for slices");
                                } else { unimplemented!() }
                        },
                        syn::Type::Tuple(t) => {
@@ -2901,6 +2915,22 @@ impl<'a, 'c: 'a> TypeResolver<'a, 'c> {
                                        let mut segments = syn::punctuated::Punctuated::new();
                                        segments.push(parse_quote!(Vec<#args>));
                                        self.write_c_type_intern(w, &syn::Type::Path(syn::TypePath { qself: None, path: syn::Path { leading_colon: None, segments } }), generics, false, is_mut, ptr_for_ref, with_ref_lifetime, c_ty)
+                               } else if let syn::Type::Array(a) = &*s.elem {
+                                       if let syn::Expr::Lit(l) = &a.len {
+                                               if let syn::Lit::Int(i) = &l.lit {
+                                                       let mut buf = Vec::new();
+                                                       self.write_rust_type(&mut buf, generics, &*a.elem, false);
+                                                       let arr_ty = String::from_utf8(buf).unwrap();
+
+                                                       let arr_str = format!("[{}; {}]", arr_ty, i.base10_digits());
+                                                       let ty = self.c_type_from_path(&arr_str, false, ptr_for_ref).unwrap()
+                                                               .rsplitn(2, "::").next().unwrap();
+
+                                                       let mangled_container = format!("CVec_{}Z", ty);
+                                                       write!(w, "{}::{}", Self::generated_container_path(), mangled_container).unwrap();
+                                                       self.check_create_container(mangled_container, "Vec", vec![&*s.elem], generics, false)
+                                               } else { false }
+                                       } else { false }
                                } else { false }
                        },
                        syn::Type::Tuple(t) => {