Fix JSONC load issue

Author: lambdalisue

denops/@denops-private/deno.jsonc

@@ -6,14 +6,15 @@
     "@core/unknownutil": "jsr:@core/unknownutil@^4.0.0",
     "@denops/core": "jsr:@denops/core@^7.0.0",
     "@denops/vim-channel-command": "jsr:@denops/vim-channel-command@^4.0.2",
-    "@lambdalisue/import-map-importer": "jsr:@lambdalisue/import-map-importer@^0.4.0",
+    "@lambdalisue/import-map-importer": "jsr:@lambdalisue/import-map-importer@^0.5.0",
     "@lambdalisue/messagepack": "jsr:@lambdalisue/messagepack@^1.0.1",
     "@lambdalisue/messagepack-rpc": "jsr:@lambdalisue/messagepack-rpc@^2.4.1",
     "@lambdalisue/workerio": "jsr:@lambdalisue/workerio@^4.0.1",
     "@milly/async-signal": "jsr:@milly/async-signal@^1.0.0",
     "@nick/dispose": "jsr:@nick/dispose@^1.1.0",
     "@std/async": "jsr:@std/async@^1.0.1",
     "@std/cli": "jsr:@std/cli@^1.0.1",
+    "@std/jsonc": "jsr:@std/jsonc@^1.0.2",
     "@std/path": "jsr:@std/path@^1.0.2",
     "@std/semver": "jsr:@std/semver@^1.0.1"
   }

denops/@denops-private/plugin.ts

@@ -8,6 +8,7 @@ import { toFileUrl } from "@std/path/to-file-url";
 import { fromFileUrl } from "@std/path/from-file-url";
 import { join } from "@std/path/join";
 import { dirname } from "@std/path/dirname";
+import { parse as parseJsonc } from "@std/jsonc";
 
 type PluginModule = {
   main: Entrypoint;
@@ -165,7 +166,12 @@ async function tryLoadImportMap(
   for (const pattern of PATTERNS) {
     const importMapPath = join(parentDir, pattern);
     try {
-      return await loadImportMap(importMapPath);
+      return await loadImportMap(importMapPath, {
+        loader: (path: string) => {
+          const content = Deno.readTextFileSync(path);
+          return parseJsonc(content);
+        },
+      });
     } catch (err: unknown) {
       if (err instanceof Deno.errors.NotFound) {
         // Ignore NotFound errors and try the next pattern