release: WRNexusJS 0.2.28

packages/compiler/src/parser.ts

@@ -124,8 +124,11 @@ export interface PropDecl {
 
 export interface PageAst {
   type: "page";
-  /** `page` (a route) or `component` (a reusable, prop-driven fragment). */
-  kind: "page" | "component";
+  /**
+   * `page` is a route, `component` is a reusable fragment,
+   * and `layout` is a reusable page wrapper.
+   */
+  kind: "page" | "component" | "layout";
   name: string;
   /** Name of the page layout (`app/layouts/<layout>.wrn`), if the page sets one. */
   layout?: string;
@@ -183,14 +186,18 @@ export function parse(source: string): PageAst {
   };
 
   try {
-    // A file is either a `page` (a route) or a `component` (a reusable fragment).
+    // A file may contain a page, reusable component, or reusable layout.
     const opener = lx.next();
-    if (opener.type !== "ident" || (opener.value !== "page" && opener.value !== "component")) {
+
+    if (opener.type !== "ident" || !["page", "component", "layout"].includes(opener.value)) {
       throw new ParseError(
-        `Expected 'page' or 'component' but got '${opener.value || opener.type}' at offset ${opener.pos}`,
+        `Expected 'page', 'component', or 'layout' but got '${
+          opener.value || opener.type
+        }' at offset ${opener.pos}`,
       );
     }
-    const kind: "page" | "component" = opener.value === "component" ? "component" : "page";
+
+    const kind = opener.value as "page" | "component" | "layout";
     const name = expect("ident").value;
     expect("lbrace");