From 02e2948e00d37333fc1614264b25634d47522bb6 Mon Sep 17 00:00:00 2001
From: Greg Johnston <greg.johnston@gmail.com>
Date: Fri, 3 Mar 2023 13:20:38 -0500
Subject: [PATCH] fix: suppress warnings caused by resource loading in
 `generate_route_list` (closes #582) (#621)

---
 leptos_dom/src/macro_helpers/into_class.rs |  2 --
 leptos_reactive/src/resource.rs            | 15 ++++++++++++++-
 router/src/components/link.rs              |  6 ++++++
 router/src/extract_routes.rs               |  4 +++-
 4 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/leptos_dom/src/macro_helpers/into_class.rs b/leptos_dom/src/macro_helpers/into_class.rs
index a015bc544..7d76659ef 100644
--- a/leptos_dom/src/macro_helpers/into_class.rs
+++ b/leptos_dom/src/macro_helpers/into_class.rs
@@ -1,6 +1,4 @@
 use leptos_reactive::Scope;
-#[cfg(all(target_arch = "wasm32", feature = "web"))]
-use wasm_bindgen::UnwrapThrowExt;
 
 /// Represents the different possible values a single class on an element could have,
 /// allowing you to do fine-grained updates to single items
diff --git a/leptos_reactive/src/resource.rs b/leptos_reactive/src/resource.rs
index 027066ef2..ca37cbb48 100644
--- a/leptos_reactive/src/resource.rs
+++ b/leptos_reactive/src/resource.rs
@@ -288,7 +288,11 @@ where
     S: PartialEq + Debug + Clone + 'static,
     T: 'static,
 {
-    r.load(false)
+    SUPPRESS_RESOURCE_LOAD.with(|s| {
+        if !s.get() {
+            r.load(false)
+        }
+    });
 }
 
 #[cfg(feature = "hydrate")]
@@ -741,3 +745,12 @@ impl<S, T> UnserializableResource for ResourceState<S, T> {
         self
     }
 }
+
+thread_local! {
+    static SUPPRESS_RESOURCE_LOAD: Cell<bool> = Cell::new(false);
+}
+
+#[doc(hidden)]
+pub fn suppress_resource_load(suppress: bool) {
+    SUPPRESS_RESOURCE_LOAD.with(|w| w.set(suppress));
+}
diff --git a/router/src/components/link.rs b/router/src/components/link.rs
index 50d49e2b3..645d62af2 100644
--- a/router/src/components/link.rs
+++ b/router/src/components/link.rs
@@ -77,6 +77,12 @@ where
         class: Option<AttributeValue>,
         children: Children,
     ) -> HtmlElement<leptos::html::A> {
+        #[cfg(not(any(feature = "hydrate", feature = "csr")))]
+        _ = state;
+
+        #[cfg(not(any(feature = "hydrate", feature = "csr")))]
+        _ = replace;
+
         let location = use_location(cx);
         let is_active = create_memo(cx, move |_| match href.get() {
             None => false,
diff --git a/router/src/extract_routes.rs b/router/src/extract_routes.rs
index fa2783f99..79f0b613a 100644
--- a/router/src/extract_routes.rs
+++ b/router/src/extract_routes.rs
@@ -25,7 +25,9 @@ where
         let branches = PossibleBranchContext::default();
         provide_context(cx, branches.clone());
 
-        let _ = app_fn(cx).into_view(cx);
+        leptos::suppress_resource_load(true);
+        _ = app_fn(cx).into_view(cx);
+        leptos::suppress_resource_load(false);
 
         let branches = branches.0.borrow();
         branches