Robert Nystrom
ba40d9bece
Change-Id: I73edeeaf4934899b71d6335dcb4b4b54dce46bae Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/426340 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Nate Biggs <natebiggs@google.com> Commit-Queue: Nate Biggs <natebiggs@google.com>
64 lines
1.9 KiB
Dart
64 lines
1.9 KiB
Dart
// Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// dart2wasmOptions=--extra-compiler-option=--enable-experimental-wasm-interop
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import 'dart:_wasm';
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import 'package:expect/expect.dart';
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WasmTable<WasmFuncRef?> funcrefTable = WasmTable(3);
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WasmTable<WasmFunction<int Function(int)>?> funcTable = WasmTable(1);
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void f1() {}
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void f2(int x) {
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Expect.equals(4, x);
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}
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int f3(int x) => x + 1;
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main() {
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// Initialize untyped function table
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Expect.equals(3, funcrefTable.size.toIntUnsigned());
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funcrefTable[0.toWasmI32()] = WasmFunction.fromFunction(f1);
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funcrefTable[1.toWasmI32()] = WasmFunction.fromFunction(f2);
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funcrefTable[2.toWasmI32()] = WasmFunction.fromFunction(f3);
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// Reading and calling functions in untyped function table
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WasmFunction<void Function()>.fromFuncRef(
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funcrefTable[0.toWasmI32()]!,
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).call();
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WasmFunction<void Function(int)>.fromFuncRef(
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funcrefTable[1.toWasmI32()]!,
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).call(4);
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Expect.equals(
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6,
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WasmFunction<int Function(int)>.fromFuncRef(
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funcrefTable[2.toWasmI32()]!,
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).call(5),
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);
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// Calling functions in untyped function table with callIndirect
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funcrefTable.callIndirect<void Function()>(0.toWasmI32())();
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funcrefTable.callIndirect<void Function(int)>(1.toWasmI32())(4);
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Expect.equals(
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16,
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funcrefTable.callIndirect<int Function(int)>(2.toWasmI32())(15),
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);
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// Initialize typed function table
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Expect.equals(1, funcTable.size.toIntUnsigned());
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funcTable[0.toWasmI32()] = WasmFunction.fromFunction(f3);
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// Reading and calling function in typed function table
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Expect.equals(8, funcTable[0.toWasmI32()]!.call(7));
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// Calling function in typed function table with callIndirect
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Expect.equals(
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18,
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funcTable.callIndirect<int Function(int)>(0.toWasmI32())(17),
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);
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}
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