wasm-caching.js - mozsearch

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const {Module, Instance, compileStreaming, RuntimeError} = WebAssembly;

function testCached(code, imports, test) {

    if (typeof code === 'string')

        code = wasmTextToBinary(code);

    let success = false;

    let cache = streamCacheEntry(code);

    assertEq(cache.cached, false);

    compileStreaming(cache)

    .then(m => {

         test(new Instance(m, imports));

         if (!wasmTestSerializationEnabled()) {

             assertEq(wasmLoadedFromCache(m), false);

         while (!wasmHasTier2CompilationCompleted(m)) {

            sleep(1);

         assertEq(cache.cached, true);

         return compileStreaming(cache);

})

     .then(m => {

         test(new Instance(m, imports));

         assertEq(wasmLoadedFromCache(m), true);

         assertEq(cache.cached, true);

         let m2 = wasmCompileInSeparateProcess(code);

         test(new Instance(m2, imports));

         assertEq(wasmLoadedFromCache(m2), true);

         success = true;

})

     .catch(err => { print(String(err) + " at:\n" + err.stack) });

     drainJobQueue();

     assertEq(success, true);