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09a8440b45
PR-URL: https://github.com/nodejs/node/pull/51362 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
45 lines
1.5 KiB
JavaScript
45 lines
1.5 KiB
JavaScript
// Copyright 2021 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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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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(function TestNominalTypesBasic() {
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print(arguments.callee.name);
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var builder = new WasmModuleBuilder();
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let struct1 = builder.addStruct([makeField(kWasmI32, true)]);
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let struct2 = builder.addStruct(
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[makeField(kWasmI32, true), makeField(kWasmI32, true)], struct1);
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let array1 = builder.addArray(kWasmI32, true);
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let array2 = builder.addArray(kWasmI32, true, array1);
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builder.addFunction("main", kSig_v_v)
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.addLocals(wasmRefNullType(struct1), 1)
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.addLocals(wasmRefNullType(array1), 1)
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.addBody([
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// Check that we can create a struct with implicit RTT.
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kGCPrefix, kExprStructNewDefault, struct2,
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// ...and upcast it.
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kExprLocalSet, 0,
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// Check that we can create an array with implicit RTT.
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kExprI32Const, 10, // length
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kGCPrefix, kExprArrayNewDefault, array2,
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// ...and upcast it.
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kExprLocalSet, 1])
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.exportFunc();
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// This test is only interested in type checking.
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builder.instantiate();
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})();
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(function TestSubtypingDepthTooLarge() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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builder.addStruct([]);
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for (let i = 0; i < 64; i++) builder.addStruct([], i);
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assertThrows(
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() => builder.instantiate(), WebAssembly.CompileError,
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/subtyping depth is greater than allowed/);
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})();
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