fix: Don't use public items via paths that include private modules

libs/pavex_cli/tests/ui_tests/reflection/reexported_type_alias_work/dep.rs

@@ -0,0 +1,12 @@
+#[doc(inline)]
+pub use api::engine;
+#[doc(inline)]
+pub use api::Surreal;
+
+mod api {
+    pub struct Surreal<T>(T);
+
+    pub mod engine {
+        pub struct Any;
+    }
+}

libs/pavex_cli/tests/ui_tests/reflection/reexported_type_alias_work/expectations/app.rs

@@ -0,0 +1,164 @@
+//! Do NOT edit this code.
+//! It was automatically generated by Pavex.
+//! All manual edits will be lost next time the code is generated.
+extern crate alloc;
+struct ServerState {
+    router: pavex_matchit::Router<u32>,
+    application_state: ApplicationState,
+}
+pub struct ApplicationState {
+    s0: dep::Surreal<dep::engine::Any>,
+}
+pub async fn build_application_state() -> crate::ApplicationState {
+    let v0 = app::constructor();
+    crate::ApplicationState { s0: v0 }
+}
+pub fn run(
+    server_builder: pavex::server::Server,
+    application_state: ApplicationState,
+) -> pavex::server::ServerHandle {
+    let server_state = std::sync::Arc::new(ServerState {
+        router: build_router(),
+        application_state,
+    });
+    server_builder.serve(route_request, server_state)
+}
+fn build_router() -> pavex_matchit::Router<u32> {
+    let mut router = pavex_matchit::Router::new();
+    router.insert("/", 0u32).unwrap();
+    router
+}
+async fn route_request(
+    request: http::Request<hyper::body::Incoming>,
+    _connection_info: Option<pavex::connection::ConnectionInfo>,
+    server_state: std::sync::Arc<ServerState>,
+) -> pavex::response::Response {
+    let (request_head, request_body) = request.into_parts();
+    #[allow(unused)]
+    let request_body = pavex::request::body::RawIncomingBody::from(request_body);
+    let request_head: pavex::request::RequestHead = request_head.into();
+    let matched_route = match server_state.router.at(&request_head.target.path()) {
+        Ok(m) => m,
+        Err(_) => {
+            let allowed_methods: pavex::router::AllowedMethods = pavex::router::MethodAllowList::from_iter(
+                    vec![],
+                )
+                .into();
+            return route_1::entrypoint(&allowed_methods).await;
+        }
+    };
+    let route_id = matched_route.value;
+    #[allow(unused)]
+    let url_params: pavex::request::path::RawPathParams<'_, '_> = matched_route
+        .params
+        .into();
+    match route_id {
+        0u32 => {
+            match &request_head.method {
+                &pavex::http::Method::GET => {
+                    route_0::entrypoint(&server_state.application_state.s0).await
+                }
+                _ => {
+                    let allowed_methods: pavex::router::AllowedMethods = pavex::router::MethodAllowList::from_iter([
+                            pavex::http::Method::GET,
+                        ])
+                        .into();
+                    route_1::entrypoint(&allowed_methods).await
+                }
+            }
+        }
+        i => unreachable!("Unknown route id: {}", i),
+    }
+}
+pub mod route_0 {
+    pub async fn entrypoint<'a>(
+        s_0: &'a dep::Surreal<dep::engine::Any>,
+    ) -> pavex::response::Response {
+        let response = wrapping_0(s_0).await;
+        response
+    }
+    async fn stage_1<'a>(
+        s_0: &'a dep::Surreal<dep::engine::Any>,
+    ) -> pavex::response::Response {
+        let response = handler(s_0).await;
+        response
+    }
+    async fn wrapping_0(
+        v0: &dep::Surreal<dep::engine::Any>,
+    ) -> pavex::response::Response {
+        let v1 = crate::route_0::Next0 {
+            s_0: v0,
+            next: stage_1,
+        };
+        let v2 = pavex::middleware::Next::new(v1);
+        let v3 = pavex::middleware::wrap_noop(v2).await;
+        <pavex::response::Response as pavex::response::IntoResponse>::into_response(v3)
+    }
+    async fn handler(v0: &dep::Surreal<dep::engine::Any>) -> pavex::response::Response {
+        let v1 = app::handler(v0);
+        <pavex::response::Response as pavex::response::IntoResponse>::into_response(v1)
+    }
+    struct Next0<'a, T>
+    where
+        T: std::future::Future<Output = pavex::response::Response>,
+    {
+        s_0: &'a dep::Surreal<dep::engine::Any>,
+        next: fn(&'a dep::Surreal<dep::engine::Any>) -> T,
+    }
+    impl<'a, T> std::future::IntoFuture for Next0<'a, T>
+    where
+        T: std::future::Future<Output = pavex::response::Response>,
+    {
+        type Output = pavex::response::Response;
+        type IntoFuture = T;
+        fn into_future(self) -> Self::IntoFuture {
+            (self.next)(self.s_0)
+        }
+    }
+}
+pub mod route_1 {
+    pub async fn entrypoint<'a>(
+        s_0: &'a pavex::router::AllowedMethods,
+    ) -> pavex::response::Response {
+        let response = wrapping_0(s_0).await;
+        response
+    }
+    async fn stage_1<'a>(
+        s_0: &'a pavex::router::AllowedMethods,
+    ) -> pavex::response::Response {
+        let response = handler(s_0).await;
+        response
+    }
+    async fn wrapping_0(
+        v0: &pavex::router::AllowedMethods,
+    ) -> pavex::response::Response {
+        let v1 = crate::route_1::Next0 {
+            s_0: v0,
+            next: stage_1,
+        };
+        let v2 = pavex::middleware::Next::new(v1);
+        let v3 = pavex::middleware::wrap_noop(v2).await;
+        <pavex::response::Response as pavex::response::IntoResponse>::into_response(v3)
+    }
+    async fn handler(v0: &pavex::router::AllowedMethods) -> pavex::response::Response {
+        let v1 = pavex::router::default_fallback(v0).await;
+        <pavex::response::Response as pavex::response::IntoResponse>::into_response(v1)
+    }
+    struct Next0<'a, T>
+    where
+        T: std::future::Future<Output = pavex::response::Response>,
+    {
+        s_0: &'a pavex::router::AllowedMethods,
+        next: fn(&'a pavex::router::AllowedMethods) -> T,
+    }
+    impl<'a, T> std::future::IntoFuture for Next0<'a, T>
+    where
+        T: std::future::Future<Output = pavex::response::Response>,
+    {
+        type Output = pavex::response::Response;
+        type IntoFuture = T;
+        fn into_future(self) -> Self::IntoFuture {
+            (self.next)(self.s_0)
+        }
+    }
+}

libs/pavex_cli/tests/ui_tests/reflection/reexported_type_alias_work/expectations/diagnostics.dot

@@ -0,0 +1,45 @@
+digraph "GET / - 0" {
+    0 [ label = "pavex::middleware::wrap_noop(pavex::middleware::Next<crate::route_0::Next0<'a>>) -> pavex::response::Response"]
+    1 [ label = "pavex::middleware::Next::new(crate::route_0::Next0<'a>) -> pavex::middleware::Next<crate::route_0::Next0<'a>>"]
+    2 [ label = "crate::route_0::Next0(&'a dep::Surreal<dep::engine::Any>) -> crate::route_0::Next0<'a>"]
+    4 [ label = "<pavex::response::Response as pavex::response::IntoResponse>::into_response(pavex::response::Response) -> pavex::response::Response"]
+    5 [ label = "&dep::Surreal<dep::engine::Any>"]
+    1 -> 0 [ ]
+    2 -> 1 [ ]
+    0 -> 4 [ ]
+    5 -> 2 [ ]
+}
+
+digraph "GET / - 1" {
+    0 [ label = "app::handler(&dep::Surreal<dep::engine::Any>) -> pavex::response::Response"]
+    2 [ label = "<pavex::response::Response as pavex::response::IntoResponse>::into_response(pavex::response::Response) -> pavex::response::Response"]
+    3 [ label = "&dep::Surreal<dep::engine::Any>"]
+    0 -> 2 [ ]
+    3 -> 0 [ ]
+}
+
+digraph "* / - 0" {
+    0 [ label = "pavex::middleware::wrap_noop(pavex::middleware::Next<crate::route_1::Next0<'a>>) -> pavex::response::Response"]
+    1 [ label = "pavex::middleware::Next::new(crate::route_1::Next0<'a>) -> pavex::middleware::Next<crate::route_1::Next0<'a>>"]
+    2 [ label = "crate::route_1::Next0(&'a pavex::router::AllowedMethods) -> crate::route_1::Next0<'a>"]
+    4 [ label = "<pavex::response::Response as pavex::response::IntoResponse>::into_response(pavex::response::Response) -> pavex::response::Response"]
+    5 [ label = "&pavex::router::AllowedMethods"]
+    1 -> 0 [ ]
+    2 -> 1 [ ]
+    0 -> 4 [ ]
+    5 -> 2 [ ]
+}
+
+digraph "* / - 1" {
+    0 [ label = "pavex::router::default_fallback(&pavex::router::AllowedMethods) -> pavex::response::Response"]
+    2 [ label = "<pavex::response::Response as pavex::response::IntoResponse>::into_response(pavex::response::Response) -> pavex::response::Response"]
+    3 [ label = "&pavex::router::AllowedMethods"]
+    0 -> 2 [ ]
+    3 -> 0 [ ]
+}
+
+digraph app_state {
+    0 [ label = "crate::ApplicationState(dep::Surreal<dep::engine::Any>) -> crate::ApplicationState"]
+    1 [ label = "app::constructor() -> dep::Surreal<dep::engine::Any>"]
+    1 -> 0 [ ]
+}

libs/pavex_cli/tests/ui_tests/reflection/reexported_type_alias_work/lib.rs

@@ -0,0 +1,20 @@
+use pavex::blueprint::{router::GET, Blueprint};
+use pavex::f;
+use pavex::response::Response;
+
+pub type RemoteAlias = dep::Surreal<dep::engine::Any>;
+
+pub fn constructor() -> RemoteAlias {
+    todo!()
+}
+
+pub fn handler(_a: &RemoteAlias) -> Response {
+    todo!()
+}
+
+pub fn blueprint() -> Blueprint {
+    let mut bp = Blueprint::new();
+    bp.singleton(f!(crate::constructor));
+    bp.route(GET, "/", f!(crate::handler));
+    bp
+}

libs/pavex_cli/tests/ui_tests/reflection/reexported_type_alias_work/test_config.toml

@@ -0,0 +1,7 @@
+description = "Reproduction of a reported bug"
+
+[expectations]
+codegen = "pass"
+
+[ephemeral_dependencies]
+dep = { path = "dep.rs" }

libs/pavexc/src/compiler/app.rs

@@ -95,6 +95,7 @@ impl App {
         ) else {
             return Err(diagnostics);
         };
+
         let framework_item_db = FrameworkItemDb::new(&package_graph, &krate_collection);
         let mut component_db = ComponentDb::build(
             user_component_db,

libs/pavexc/src/rustdoc/queries.rs

@@ -698,6 +698,7 @@ impl Crate {
             &mut id2private_import_paths,
             &mut re_exports,
             &krate.root,
+            true,
         )?;
 
         import_path2id.reserve(id2public_import_paths.len());
@@ -870,6 +871,7 @@ fn index_local_types<'a>(
     private_path_index: &mut HashMap<rustdoc_types::Id, BTreeSet<Vec<String>>>,
     re_exports: &mut HashMap<Vec<String>, (Vec<String>, u32)>,
     current_item_id: &rustdoc_types::Id,
+    is_public: bool,
 ) -> Result<(), anyhow::Error> {
     // TODO: the way we handle `current_path` is extremely wasteful,
     //       we can likely reuse the same buffer throughout.
@@ -890,6 +892,8 @@ fn index_local_types<'a>(
         Some(i) => i,
     };
 
+    let is_public = is_public && current_item.visibility == Visibility::Public;
+
     match &current_item.inner {
         ItemEnum::Module(m) => {
             let current_path_segment = current_item
@@ -906,6 +910,7 @@ fn index_local_types<'a>(
                     private_path_index,
                     re_exports,
                     item_id,
+                    is_public,
                 )?;
             }
         }
@@ -949,6 +954,7 @@ fn index_local_types<'a>(
                                     private_path_index,
                                     re_exports,
                                     re_exported_item_id,
+                                    is_public,
                                 )?;
                             }
                         } else {
@@ -960,6 +966,7 @@ fn index_local_types<'a>(
                                 private_path_index,
                                 re_exports,
                                 imported_id,
+                                is_public,
                             )?;
                         }
                     }
@@ -977,7 +984,7 @@ fn index_local_types<'a>(
             current_path.push(name);
             let path = current_path.into_iter().map(|s| s.to_string()).collect();
 
-            let index = if current_item.visibility == Visibility::Public {
+            let index = if is_public {
                 public_path_index
             } else {
                 private_path_index