c001a9ecc1
Implementation of serialization/deserialization for compiled wasm module. BUG=v8:5072 Review-Url: https://codereview.chromium.org/2205973003 Cr-Commit-Position: refs/heads/master@{#38498}
81 lines
2.3 KiB
JavaScript
81 lines
2.3 KiB
JavaScript
// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-wasm --allow-natives-syntax --expose-gc
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load("test/mjsunit/wasm/wasm-constants.js");
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load("test/mjsunit/wasm/wasm-module-builder.js");
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(function SerializeAndDeserializeModule() {
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var builder = new WasmModuleBuilder();
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builder.addMemory(1,1, true);
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var kSig_v_i = makeSig([kAstI32], []);
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var signature = builder.addType(kSig_v_i);
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builder.addImport("some_value", kSig_i);
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builder.addImport("writer", signature);
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builder.addFunction("main", kSig_i_i)
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.addBody([
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kExprI32Const, 1,
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kExprGetLocal, 0,
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kExprI32LoadMem, 0, 0,
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kExprCallIndirect, kArity1, signature,
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kExprGetLocal,0,
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kExprI32LoadMem,0, 0,
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kExprCallImport, kArity0, 0,
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kExprI32Add
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]).exportFunc();
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// writer(mem[i]);
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// return mem[i] + some_value();
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builder.addFunction("_wrap_writer", signature)
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.addBody([
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kExprGetLocal, 0,
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kExprCallImport, kArity1, 1]);
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builder.appendToTable([0, 1]);
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var module = new WebAssembly.Module(builder.toBuffer());
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var buff = %SerializeWasmModule(module);
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module = null;
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gc();
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module = %DeserializeWasmModule(buff);
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var mem_1 = new ArrayBuffer(4);
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var view_1 = new Int32Array(mem_1);
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view_1[0] = 42;
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var outval_1;
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var i1 = new WebAssembly.Instance(module, {some_value: () => 1,
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writer: (x)=>outval_1 = x }, mem_1);
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assertEquals(43, i1.exports.main(0));
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assertEquals(42, outval_1);
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})();
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(function DeserializeInvalidObject() {
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var invalid_buffer = new ArrayBuffer(10);
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module = %DeserializeWasmModule(invalid_buffer);
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assertEquals(module, undefined);
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})();
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(function RelationBetweenModuleAndClone() {
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let builder = new WasmModuleBuilder();
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builder.addFunction("main", kSig_i)
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.addBody([kExprI8Const, 42])
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.exportFunc();
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var compiled_module = new WebAssembly.Module(builder.toBuffer());
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var serialized = %SerializeWasmModule(compiled_module);
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var clone = %DeserializeWasmModule(serialized);
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assertNotNull(clone);
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assertFalse(clone == undefined);
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assertFalse(clone == compiled_module);
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assertEquals(clone.constructor, compiled_module.constructor);
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})()
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