fix: remove filter callback

Signed-off-by: Victor Adossi <vadossi@cosmonic.com>

examples/components/webidl-book-library/book-library.webidl

@@ -24,9 +24,6 @@ dictionary Book {
   unsigned short pages;
 };
 
-// WebIDL Callbakcs are turned into functions
-callback FilterCallback = boolean (Book book);
-
 // WebIDL interfaces become WIT resources
 interface Library {
   readonly attribute unsigned long totalBooks;
@@ -45,7 +42,7 @@ interface Library {
 };
 
 interface AdvancedLibrary : Library {
-  FrozenArray<Book> filterBooks(FilterCallback callback);
+  FrozenArray<Book> filterBooks(DOMString name);
 };
 
 partial interface Library {

examples/components/webidl-book-library/package.json

@@ -3,7 +3,7 @@
   "description": "Example WebAssembly component showcasing WIT interfaces auto-generated from WebIDL",
   "type": "module",
   "scripts": {
-    "generate:wit": "webidl2wit book-library.webidl",
+    "generate:wit": "webidl2wit book-library.webidl -o wit/book-library.wit",
     "build": "jco componentize book-library.js --wit wit/ --world-name revup --out book-library.wasm --disable all",
     "all": "npm run generate:wit && npm run generate:types && npm run build"
   },

examples/components/webidl-book-library/wit/book-library.wit

@@ -0,0 +1,38 @@
+package examples:book-library;
+
+interface default {
+  enum book-genre {
+    fiction,
+    non-fiction,
+    mystery,
+    fantasy,
+    science-fiction,
+    biography,
+  }
+  type dom-string = book-title;
+  record book {
+    title: book-title,
+    author: string,
+    genre: option<book-genre>,
+    pages: option<u16>,
+  }
+  resource library {
+    total-books: func() -> u32;
+    add-book: func(book: book) -> bool;
+    remove-book: func(title: string) -> bool;
+    get-book-by-title: func(title: string) -> option<book>;
+    list-books: func() -> option<list<book>>;
+    as-advanced-library: func() -> option<advanced-library>;
+    library-name: func() -> library-name;
+    rename-library: func(new-name: library-name) -> void;
+  }
+  resource advanced-library {
+    as-library: func() -> library;
+    filter-books: func(name: string) -> list<book>;
+  }
+  type dom-string = library-name;
+  resource book-manager {
+    library: func() -> library;
+    init-library: func(name: library-name) -> void;
+  }
+}