From: Matt Corallo <git@bluematt.me>
Date: Thu, 11 Feb 2021 16:39:21 +0000 (-0500)
Subject: [bindings] Resolve type aliases mapped as opaque types
X-Git-Tag: v0.0.13~27^2~5
X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=842d2f6ce7da27ddc439501cf4025c9daaf6b0e8;p=rust-lightning

[bindings] Resolve type aliases mapped as opaque types

We already map type aliases which alias private types as opaque,
but we don't resolve them like we would any other opaque type,
preventing conversion printing or type use.
---

diff --git a/c-bindings-gen/src/types.rs b/c-bindings-gen/src/types.rs
index 4f5e4612c..ad9cd0497 100644
--- a/c-bindings-gen/src/types.rs
+++ b/c-bindings-gen/src/types.rs
@@ -383,6 +383,21 @@ impl<'mod_lifetime, 'crate_lft: 'mod_lifetime> ImportResolver<'mod_lifetime, 'cr
 						}
 					}
 				},
+				syn::Item::Type(t) if export_status(&t.attrs) == ExportStatus::Export => {
+					if let syn::Visibility::Public(_) = t.vis {
+						let mut process_alias = true;
+						for tok in t.generics.params.iter() {
+							if let syn::GenericParam::Lifetime(_) = tok {}
+							else { process_alias = false; }
+						}
+						if process_alias {
+							match &*t.ty {
+								syn::Type::Path(_) => { declared.insert(t.ident.clone(), DeclType::StructImported); },
+								_ => {},
+							}
+						}
+					}
+				},
 				syn::Item::Enum(e) => {
 					if let syn::Visibility::Public(_) = e.vis {
 						match export_status(&e.attrs) {