[wasm] feat: expose library version

um_wasm_loader/rollup.config.mjs

@@ -2,6 +2,9 @@ import { defineConfig } from 'rollup';
 import { wasm } from '@rollup/plugin-wasm';
 import replace from '@rollup/plugin-replace';
 import { dts } from 'rollup-plugin-dts';
+import { readFileSync } from 'node:fs';
+
+const pkgJson = JSON.parse(readFileSync(new URL('package.json', import.meta.url), 'utf-8'));
 
 function makePlugins({ sync }) {
   const plugins = [];
@@ -16,6 +19,7 @@ function makePlugins({ sync }) {
       preventAssignment: true,
       values: {
         'process.env.UMC_INLINE_BUILD': JSON.stringify(String(sync ? 1 : 0)),
+        'process.env.UMC_VERSION': JSON.stringify(pkgJson.version),
       },
     }),
   );

um_wasm_loader/src/loader.mjs

@@ -21,4 +21,12 @@ function loader() {
   }
 }
 
+/**
+ * Get package version.
+ * @returns {string}
+ */
+export function getUmcVersion() {
+  return process.env.UMC_VERSION;
+}
+
 export const ready = loader();