ba688c6ec9
The reference types wasm proposal dropped all subtyping. Subsequently, the 'anyref' type was renamed to externref. This changes all references of the *type* anyref to externref. Additionally, the flag that permits this extension is renamed to "reftypes" to mirror the proposal name. Bug: v8:7748 Change-Id: Icf323f13b9660fd10540e65125af053fca3a03f9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2232941 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by: Kim-Anh Tran <kimanh@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#68270}
44 lines
1.5 KiB
JavaScript
44 lines
1.5 KiB
JavaScript
// Copyright 2018 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: --allow-natives-syntax --experimental-wasm-reftypes
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load("test/mjsunit/wasm/wasm-module-builder.js");
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(function testExternRefNull() {
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const builder = new WasmModuleBuilder();
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builder.addFunction('main', kSig_r_v)
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.addBody([kExprRefNull, kWasmExternRef])
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.exportFunc();
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var wire_bytes = builder.toBuffer();
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var module = new WebAssembly.Module(wire_bytes);
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var buffer = %SerializeWasmModule(module);
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module = %DeserializeWasmModule(buffer, wire_bytes);
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var instance = new WebAssembly.Instance(module);
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assertEquals(null, instance.exports.main());
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})();
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(function testExternRefIsNull() {
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const builder = new WasmModuleBuilder();
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builder.addFunction('main', kSig_i_r)
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.addBody([kExprLocalGet, 0, kExprRefIsNull, kWasmExternRef])
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.exportFunc();
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var wire_bytes = builder.toBuffer();
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var module = new WebAssembly.Module(wire_bytes);
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var buffer = %SerializeWasmModule(module);
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module = %DeserializeWasmModule(buffer, wire_bytes);
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var instance = new WebAssembly.Instance(module);
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assertEquals(0, instance.exports.main({'hello' : 'world'}));
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assertEquals(0, instance.exports.main(1234));
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assertEquals(0, instance.exports.main(0));
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assertEquals(0, instance.exports.main(123.4));
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assertEquals(0, instance.exports.main(undefined));
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assertEquals(1, instance.exports.main(null));
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assertEquals(0, instance.exports.main(print));
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})();
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