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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --expose-wasm --allow-natives-syntax --expose-gc
load("test/mjsunit/wasm/wasm-constants.js");
load("test/mjsunit/wasm/wasm-module-builder.js");
(function SerializeAndDeserializeModule() {
var builder = new WasmModuleBuilder();
builder.addImportedMemory("", "memory", 1);
var kSig_v_i = makeSig([kWasmI32], []);
var signature = builder.addType(kSig_v_i);
builder.addImport("", "some_value", kSig_i_v);
builder.addImport("", "writer", signature);
builder.addFunction("main", kSig_i_i)
.addBody([
kExprGetLocal, 0,
kExprI32LoadMem, 0, 0,
kExprI32Const, 1,
kExprCallIndirect, signature, kTableZero,
kExprGetLocal,0,
kExprI32LoadMem,0, 0,
kExprCallFunction, 0,
kExprI32Add
]).exportFunc();
// writer(mem[i]);
// return mem[i] + some_value();
builder.addFunction("_wrap_writer", signature)
.addBody([
kExprGetLocal, 0,
kExprCallFunction, 1]);
builder.appendToTable([2, 3]);
var wire_bytes = builder.toBuffer();
var module = new WebAssembly.Module(wire_bytes);
var mem_1 = new WebAssembly.Memory({initial: 1});
var view_1 = new Int32Array(mem_1.buffer);
view_1[0] = 42;
var outval_1;
var i1 = new WebAssembly.Instance(module, {"":
{some_value: () => 1,
writer: (x) => outval_1 = x ,
memory: mem_1}
});
assertEquals(43, i1.exports.main(0));
assertEquals(42, outval_1);
var buff = %SerializeWasmModule(module);
module = null;
gc();
module = %DeserializeWasmModule(buff, wire_bytes);
var mem_2 = new WebAssembly.Memory({initial: 2});
var view_2 = new Int32Array(mem_2.buffer);
view_2[0] = 50;
var outval_2;
var i2 = new WebAssembly.Instance(module, {"":
{some_value: () => 1,
writer: (x) => outval_2 = x ,
memory: mem_2}
});
assertEquals(51, i2.exports.main(0));
assertEquals(50, outval_2);
// The instances don't share memory through deserialization.
assertEquals(43, i1.exports.main(0));
})();
(function DeserializeInvalidObject() {
var invalid_buffer = new ArrayBuffer(10);
module = %DeserializeWasmModule(invalid_buffer, invalid_buffer);
assertEquals(module, undefined);
})();
(function RelationBetweenModuleAndClone() {
let builder = new WasmModuleBuilder();
builder.addFunction("main", kSig_i_v)
.addBody([kExprI32Const, 42])
.exportFunc();
var wire_bytes = builder.toBuffer();
var compiled_module = new WebAssembly.Module(wire_bytes);
var serialized = %SerializeWasmModule(compiled_module);
var clone = %DeserializeWasmModule(serialized, wire_bytes);
assertNotNull(clone);
assertFalse(clone == undefined);
assertFalse(clone == compiled_module);
assertEquals(clone.constructor, compiled_module.constructor);
})();
(function SerializeWrappersWithSameSignature() {
let builder = new WasmModuleBuilder();
builder.addFunction("main", kSig_i_v)
.addBody([kExprI32Const, 42])
.exportFunc();
builder.addFunction("main_same_signature", kSig_i_v)
.addBody([kExprI32Const, 23])
.exportFunc();
var wire_bytes = builder.toBuffer();
var compiled_module = new WebAssembly.Module(wire_bytes);
var serialized = %SerializeWasmModule(compiled_module);
var clone = %DeserializeWasmModule(serialized, wire_bytes);
assertNotNull(clone);
assertFalse(clone == undefined);
assertFalse(clone == compiled_module);
assertEquals(clone.constructor, compiled_module.constructor);
})();
(function SerializeAfterInstantiation() {
let builder = new WasmModuleBuilder();
builder.addFunction("main", kSig_i_v)
.addBody([kExprI32Const, 42])
.exportFunc();
var wire_bytes = builder.toBuffer()
var compiled_module = new WebAssembly.Module(wire_bytes);
var instance1 = new WebAssembly.Instance(compiled_module);
var instance2 = new WebAssembly.Instance(compiled_module);
var serialized = %SerializeWasmModule(compiled_module);
var clone = %DeserializeWasmModule(serialized, wire_bytes);
assertNotNull(clone);
assertFalse(clone == undefined);
assertFalse(clone == compiled_module);
assertEquals(clone.constructor, compiled_module.constructor);
var instance3 = new WebAssembly.Instance(clone);
assertFalse(instance3 == undefined);
})();
(function SerializeAfterInstantiationWithMemory() {
let builder = new WasmModuleBuilder();
builder.addImportedMemory("", "memory", 1);
builder.addFunction("main", kSig_i_v)
.addBody([kExprI32Const, 42])
.exportFunc();
var wire_bytes = builder.toBuffer()
var compiled_module = new WebAssembly.Module(wire_bytes);
var mem_1 = new WebAssembly.Memory({initial: 1});
var ffi = {"":{memory:mem_1}};
var instance1 = new WebAssembly.Instance(compiled_module, ffi);
var serialized = %SerializeWasmModule(compiled_module);
var clone = %DeserializeWasmModule(serialized, wire_bytes);
assertNotNull(clone);
assertFalse(clone == undefined);
assertFalse(clone == compiled_module);
assertEquals(clone.constructor, compiled_module.constructor);
var instance2 = new WebAssembly.Instance(clone, ffi);
assertFalse(instance2 == undefined);
})();
(function GlobalsArePrivateBetweenClones() {
var builder = new WasmModuleBuilder();
builder.addGlobal(kWasmI32, true);
builder.addFunction("read", kSig_i_v)
.addBody([
kExprGetGlobal, 0])
.exportFunc();
builder.addFunction("write", kSig_v_i)
.addBody([
kExprGetLocal, 0,
kExprSetGlobal, 0])
.exportFunc();
var wire_bytes = builder.toBuffer();
var module = new WebAssembly.Module(wire_bytes);
var i1 = new WebAssembly.Instance(module);
// serialize and replace module
var buff = %SerializeWasmModule(module);
var module_clone = %DeserializeWasmModule(buff, wire_bytes);
var i2 = new WebAssembly.Instance(module_clone);
i1.exports.write(1);
i2.exports.write(2);
assertEquals(1, i1.exports.read());
assertEquals(2, i2.exports.read());
})();
(function SharedTableTest() {
let kTableSize = 3;
var sig_index1;
function MakeTableExportingModule(constant) {
// A module that defines a table and exports it.
var builder = new WasmModuleBuilder();
builder.addType(kSig_i_i);
builder.addType(kSig_i_ii);
sig_index1 = builder.addType(kSig_i_v);
var f1 = builder.addFunction("f1", sig_index1)
.addBody([kExprI32Const, constant]);
builder.addFunction("main", kSig_i_ii)
.addBody([
kExprGetLocal, 0, // --
kExprCallIndirect, sig_index1, kTableZero]) // --
.exportAs("main");
builder.setFunctionTableBounds(kTableSize, kTableSize);
builder.addFunctionTableInit(0, false, [f1.index]);
builder.addExportOfKind("table", kExternalTable, 0);
return new WebAssembly.Module(builder.toBuffer());
}
var m1 = MakeTableExportingModule(11);
// Module {m2} imports the table and adds {f2}.
var builder = new WasmModuleBuilder();
builder.addType(kSig_i_ii);
var sig_index2 = builder.addType(kSig_i_v);
var f2 = builder.addFunction("f2", sig_index2)
.addBody([kExprI32Const, 22]);
builder.addFunction("main", kSig_i_ii)
.addBody([
kExprGetLocal, 0, // --
kExprCallIndirect, sig_index2, kTableZero]) // --
.exportAs("main");
builder.addImportedTable("z", "table", kTableSize, kTableSize);
builder.addFunctionTableInit(1, false, [f2.index], true);
var m2_bytes = builder.toBuffer();
var m2 = new WebAssembly.Module(m2_bytes);
assertFalse(sig_index1 == sig_index2);
var i1 = new WebAssembly.Instance(m1);
var i2 = new WebAssembly.Instance(m2, {z: {table: i1.exports.table}});
var serialized_m2 = %SerializeWasmModule(m2);
var m2_clone = %DeserializeWasmModule(serialized_m2, m2_bytes);
var m3 = MakeTableExportingModule(33);
var i3 = new WebAssembly.Instance(m3);
var i2_prime = new WebAssembly.Instance(m2_clone,
{z: {table: i3.exports.table}});
assertEquals(11, i1.exports.main(0));
assertEquals(11, i2.exports.main(0));
assertEquals(22, i1.exports.main(1));
assertEquals(22, i2.exports.main(1));
assertEquals(33, i3.exports.main(0));
assertEquals(33, i2_prime.exports.main(0));
assertThrows(() => i1.exports.main(2));
assertThrows(() => i2.exports.main(2));
assertThrows(() => i1.exports.main(3));
assertThrows(() => i2.exports.main(3));
})();
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