guide: Add exported rust type examples to reference

examples/guide-supported-types-examples/exported_types.js

@@ -1 +1,14 @@
-console.log("todo")
+import {
+  ExportedRustType,
+  exported_type_by_value,
+  exported_type_by_shared_ref,
+  exported_type_by_exclusive_ref,
+  return_exported_type,
+} from './guide_supported_types_examples';
+
+let rustThing = return_exported_type();
+console.log(rustThing instanceof ExportedRustType); // true
+
+exported_type_by_value(rustThing);
+exported_type_by_shared_ref(rustThing);
+exported_type_by_exclusive_ref(rustThing);

examples/guide-supported-types-examples/imported_types.js

@@ -10,8 +10,7 @@ imported_type_by_value(new SomeJsType());
 imported_type_by_shared_ref(new SomeJsType());
 
 let x = return_imported_type();
-console.log(x instanceof SomeJsType);
-// true
+console.log(x instanceof SomeJsType); // true
 
 take_option_imported_type(null);
 take_option_imported_type(undefined);
@@ -21,6 +20,5 @@ let y = return_option_imported_type();
 if (y == null) {
   // ...
 } else {
-  console.log(y instanceof SomeJsType);
-  // true
+  console.log(y instanceof SomeJsType); // true
 }

examples/guide-supported-types-examples/src/exported_types.rs

@@ -1,6 +1,20 @@
 use wasm_bindgen::prelude::*;
 
 #[wasm_bindgen]
-pub struct RustType {
+pub struct ExportedRustType {
     inner: u32,
 }
+
+#[wasm_bindgen]
+pub fn exported_type_by_value(x: ExportedRustType) {}
+
+#[wasm_bindgen]
+pub fn exported_type_by_shared_ref(x: &ExportedRustType) {}
+
+#[wasm_bindgen]
+pub fn exported_type_by_exclusive_ref(x: &mut ExportedRustType) {}
+
+#[wasm_bindgen]
+pub fn return_exported_type() -> ExportedRustType {
+    unimplemented!()
+}

guide/src/reference/types.md

@@ -26,7 +26,7 @@ JavaScript.
 
 | `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
 |:---:|:---:|:---:|:---:|:---:|:---:|:---:|
-| Yes | Yes | Yes | Yes | Yes | Yes | Instances of a `wasm-bindgen`-generated JavaScript `class Whatever { ... }` |
+| Yes | Yes | Yes | Yes | No | No | Instances of a `wasm-bindgen`-generated JavaScript `class Whatever { ... }` |
 
 ### Example Rust Usage