dioxus/packages/wasm-split/wasm-split-cli/src/__wasm_split.js

// when running the harness we need to make sure to uncommon this out...

export function makeLoad(url, deps, fusedImports, initIt) {
  let alreadyLoaded = false;
  return async (callbackIndex, callbackData) => {
    await Promise.all(deps.map((dep) => dep()));
    if (alreadyLoaded) return;
    try {
      const response = await fetch(url);
      const initSync = initIt || window.__wasm_split_main_initSync;
      const mainExports = initSync(undefined, undefined);

      let imports = {
        env: {
          memory: mainExports.memory,
        },
        __wasm_split: {
          __indirect_function_table: mainExports.__indirect_function_table,
          __stack_pointer: mainExports.__stack_pointer,
          __tls_base: mainExports.__tls_base,
          memory: mainExports.memory,
        },
      };

      for (let mainExport in mainExports) {
        imports["__wasm_split"][mainExport] = mainExports[mainExport];
      }

      for (let name in fusedImports) {
        imports["__wasm_split"][name] = fusedImports[name];
      }

      let new_exports = await WebAssembly.instantiateStreaming(
        response,
        imports
      );

      alreadyLoaded = true;

      for (let name in new_exports.instance.exports) {
        fusedImports[name] = new_exports.instance.exports[name];
      }

      if (callbackIndex !== undefined) {
        mainExports.__indirect_function_table.get(callbackIndex)(
          callbackData,
          true
        );
      }
    } catch (e) {
      console.error(
        "Failed to load wasm-split module",
        e,
        url,
        deps,
        fusedImports
      );
      return;
    }
  };
}

let fusedImports = {};