release: WRNexusJS 0.8.3

packages/compiler/src/import-resolver.ts

@@ -1,4 +1,4 @@
-import { existsSync, realpathSync } from "node:fs";
+import { existsSync, realpathSync, statSync } from "node:fs";
 import { dirname, extname, join, resolve } from "node:path";
 import type { StructuredImportDecl } from "@wrnexus/syntax";
 
@@ -33,12 +33,29 @@ export function resolveWrnImport(
   options: ImportResolverOptions,
 ): ResolvedImport {
   const source = declaration.source;
-  if (!source.startsWith(".") && !source.startsWith("@/")) return { declaration, resolved: source };
-  const aliasRoot = options.aliases?.["@"] ?? "./app";
-  const base = source.startsWith("@/")
-    ? resolve(options.appRoot, aliasRoot, source.slice(2))
+  const aliases: Record<string, string> = {
+    "@": "./app",
+    ...(options.aliases ?? {}),
+  };
+  const alias = Object.keys(aliases)
+    .filter((key) => key.length > 0 && (source === key || source.startsWith(`${key}/`)))
+    .sort((left, right) => right.length - left.length)[0];
+  if (!source.startsWith(".") && !alias) return { declaration, resolved: source };
+  const base = alias
+    ? resolve(
+        options.appRoot,
+        aliases[alias]!,
+        source === alias ? "" : source.slice(alias.length + 1),
+      )
     : resolve(dirname(importer), source);
-  const found = candidates(base).find(existsSync);
+  const found = candidates(base).find((candidate) => {
+    if (!existsSync(candidate)) return false;
+    try {
+      return statSync(candidate).isFile();
+    } catch {
+      return false;
+    }
+  });
   if (found) return { declaration, resolved: realpathSync(found) };
   const severity = (options.mode ?? "compatible") === "explicit" ? "error" : "warning";
   return {