feat(unplugin-typia): add typia mjs path resolution

This commit introduces a new feature in the unplugin-typia package. It
adds a function to resolve the path of the typia mjs file. This function
reads the package.json of the typia package, resolves the directory of
the package, and joins the directory with the module path specified in
the package.json. The function is used to overwrite the source of any
import declaration that imports from 'typia' with the resolved path.

Note: This is a temporary solution until the issue
oven-sh/bun#11783 is resolved.

packages/unplugin-typia/package.json

@@ -86,6 +86,8 @@
 	},
 	"dependencies": {
 		"@rollup/pluginutils": "^5.1.0",
+		"@sxzz/ast-kit": "npm:@jsr/sxzz__ast-kit",
+		"@sxzz/magic-string-ast": "npm:@jsr/sxzz__magic-string-ast",
 		"pathe": "^1.1.2",
 		"typescript": "^5.3.2",
 		"unplugin": "^1.5.1"

packages/unplugin-typia/src/bun.ts

@@ -6,13 +6,48 @@
 
 import type { BunPlugin } from 'bun';
 import type { UnpluginContextMeta } from 'unplugin';
+import { readPackageJSON, resolvePackageJSON } from 'pkg-types';
+import { babelParse, getLang } from '@sxzz/ast-kit';
+import { MagicStringAST } from '@sxzz/magic-string-ast';
+import { dirname, join } from 'pathe';
 import { type Options, resolveOptions, unplugin } from './api.js';
 import { defaultOptions } from './core/options.js';
 
 if (globalThis.Bun == null) {
 	throw new Error('You must use this plugin with bun');
 }
 
+/* cache typia mjs path */
+let typiaMjsPath: string | undefined;
+/**
+ * Read typia mjs path.
+ * TODO: delete after [this issue](https://github.com/oven-sh/bun/issues/11783) is resolved.
+ */
+async function resolveTypiaPath(id: string, code: string) {
+	if (typiaMjsPath == null) {
+		const typiaPackageJson = await readPackageJSON('typia');
+		const typiaDirName = dirname(await resolvePackageJSON('typia'));
+		typiaMjsPath = join(typiaDirName, typiaPackageJson?.module ?? '');
+	}
+
+	const ms = new MagicStringAST(code);
+
+	const program = babelParse(code, getLang(id), {});
+	for (const node of program.body) {
+		if (
+			node.type === 'ImportDeclaration'
+			&& node.importKind !== 'type'
+			&& ms.sliceNode(node.source) === 'typia'
+		) {
+			ms.overwriteNode(node.source, `${typiaMjsPath}"`);
+		}
+	}
+
+	const r = ms.toString();
+
+	return r;
+}
+
 /**
  * bun plugin
  *
@@ -79,7 +114,7 @@ function bunTypiaPlugin(
 
 	const bunPlugin = ({
 		name: 'unplugin-typia',
-		setup(build) {
+		async setup(build) {
 			const resolvedOptions = resolveOptions(options ?? {});
 			const { include } = resolvedOptions;
 
@@ -105,7 +140,7 @@ function bunTypiaPlugin(
 					case typeof result === 'string':
 						return { contents: source };
 					default:
-						return { contents: result.code };
+						return { contents: await resolveTypiaPath(path, result.code) };
 				}
 			});
 		},