cfbf9e0d14
PR-URL: https://github.com/nodejs/node/pull/52465 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
31 lines
1.1 KiB
JavaScript
31 lines
1.1 KiB
JavaScript
// Copyright 2023 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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const builder = new WasmModuleBuilder();
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builder.addFunction("testFailNull", makeSig([], [kWasmAnyRef]))
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.exportFunc()
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.addBody([
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kExprRefNull, kAnyRefCode,
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kGCPrefix, kExprBrOnCast, 0b01, 0, kAnyRefCode, kStructRefCode,
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kGCPrefix, kExprBrOnCastFail, 0b11, 0, kAnyRefCode, kNullRefCode,
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kGCPrefix, kExprBrOnCast, 0b01, 0, kAnyRefCode, kStructRefCode,
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kExprUnreachable,
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]);
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builder.addFunction("testNull", makeSig([], [kWasmAnyRef]))
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.exportFunc()
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.addBody([
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kExprRefNull, kAnyRefCode,
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kGCPrefix, kExprBrOnCast, 0b01, 0, kAnyRefCode, kStructRefCode,
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kGCPrefix, kExprBrOnCast, 0b11, 0, kAnyRefCode, kNullRefCode,
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kGCPrefix, kExprBrOnCast, 0b01, 0, kAnyRefCode, kStructRefCode,
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kExprUnreachable,
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]);
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let wasm = builder.instantiate().exports;
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assertTraps(kTrapUnreachable, () => wasm.testFailNull());
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assertSame(null, wasm.testNull());
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