Observed parameters

Changed files (1)

• modified src/init.rs

Diff

diff --git a/src/init.rs b/src/init.rsindex a1dcfb1..a83dff5 100644--- a/src/init.rs+++ b/src/init.rs@@ -43,6 +43,7 @@ pub fn component_impl(attr: pm::TokenStream, item: pm::TokenStream) -> pm::Token     let init_self_js = format!("initSelf{}", struct_name_ident);     let attach_js = format!("attachComponent{}", struct_name_ident);     let detach_js = format!("detachComponent{}", struct_name_ident);+    let observed_js = format!("observedComponentAttribute{}", struct_name_ident);      let create_class_js_indent = Ident::new(&create_class_js, Span::call_site());     let init_self_js_ident = Ident::new(&init_self_js, Span::call_site());@@ -53,11 +54,13 @@ pub fn component_impl(attr: pm::TokenStream, item: pm::TokenStream) -> pm::Token         init_self_js.as_str(),         attach_js.as_str(),         detach_js.as_str(),+        observed_js.as_str(),     );      let rs_self = gen_rust_self(component_struct_item.clone(), init_self_js_ident);     let attach_fn = attach_quote(&attach_js, struct_name_ident);     let detach_fn = detach_quote(&detach_js, struct_name_ident);+    let observed_fn = observed_quote(&observed_js, struct_name_ident);      let expanded = quote! {         #global_store@@ -137,6 +140,37 @@ fn detach_quote(detach_state_js_fn: &str, struct_name: &Ident) -> proc_macro2::T     expanded } +fn observed_quote(observed_js_fn: &str, struct_name: &Ident) -> proc_macro2::TokenStream {+    let js_callback_ident = Ident::new(observed_js_fn, Span::call_site());+    let rs_name_str = from_pascal_to_snake(observed_js_fn);+    let rs_name_ident = Ident::new(&rs_name_str, Span::call_site());++    let store_name_str = store_name(struct_name);+    let store_ident = Ident::new(&store_name_str, Span::call_site());++    let expanded = quote! {+        #[callback(#js_callback_ident)]+        fn #rs_name_ident(element: HtmlElement, wasm_id: u32) {+            let mut store = #store_ident.write().unwrap();++            if store.is_none() {+                error!("Component not found in connect.");+                return;+            }++            let store_map = store.as_mut().unwrap();++            if let Some(component) = store_map.get_mut(&wasm_id) {+                component.observed_attributes(element);+            } else {+                error!("Component id {} not found in observed attributes.", wasm_id);+            }+        }+    };++    expanded+}+ fn store_name(struct_name: &Ident) -> String {     let store_name = from_pascal_to_snake(&struct_name.to_string()).to_uppercase() + "_COMPONENTS";     store_name@@ -211,6 +245,7 @@ fn create_class(     init_self_fn: &str,     attach_state_fn: &str,     detach_state_fn: &str,+    observed_fn: &str, ) -> proc_macro2::TokenStream {     let name_str_lit = LitStr::new(&class_creator.to_string(), Span::call_site()); @@ -252,7 +287,7 @@ fn create_class(                         }                          static get observedAttributes() {-                            return [];+                            return __OBSERVED_CALLBACK(this, this.componentId);;                         }                     }             "#,@@ -261,6 +296,7 @@ fn create_class(                 let js_init_with_state = js_init.replace("__INIT_CALLBACK", #init_self_fn);                 let js_init_with_state = js_init_with_state.replace("__ATTACH_CALLBACK", #attach_state_fn);                 let js_init_with_state = js_init_with_state.replace("__DETACH_CALLBACK", #detach_state_fn);+                let js_init_with_state = js_init_with_state.replace("__OBSERVED_CALLBACK", #observed_fn);     t                 let component = js_sys::Function::new_no_args(js_init_with_state.as_str());