0034015b1a
Due to recent spec changes, this CL removes the type immediate of ref.is_null again. Instead we check if the type of the input parameter is nullable. R=jkummerow@chromium.org Bug: v8:10556 Change-Id: If07d30fe4dd27664be7774422573b2ab2b0dfa20 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2247654 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#68484}
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])
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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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