Liam Appelbe
26c49d5578
I got the hello world wasm file from the emscripten team and got it running using a fake implementation of WASI's fd_write function. This necessitated adding support for memory exports. Bug: https://github.com/dart-lang/sdk/issues/37882 Change-Id: I139a4e868d437e2232bf4260e5cc26d8c598ac2c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/119061 Commit-Queue: Liam Appelbe <liama@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>
29 lines
1.1 KiB
Dart
29 lines
1.1 KiB
Dart
// Copyright (c) 2019, 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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// Test that we can load a wasm module, find a function, and call it.
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import "package:expect/expect.dart";
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import "dart:wasm";
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import "dart:typed_data";
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void main() {
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// int64_t square(int64_t n) { return n * n; }
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var data = Uint8List.fromList([
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0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x01, 0x06, 0x01, 0x60,
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0x01, 0x7e, 0x01, 0x7e, 0x03, 0x02, 0x01, 0x00, 0x04, 0x05, 0x01, 0x70,
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0x01, 0x01, 0x01, 0x05, 0x03, 0x01, 0x00, 0x02, 0x06, 0x08, 0x01, 0x7f,
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0x01, 0x41, 0x80, 0x88, 0x04, 0x0b, 0x07, 0x13, 0x02, 0x06, 0x6d, 0x65,
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0x6d, 0x6f, 0x72, 0x79, 0x02, 0x00, 0x06, 0x73, 0x71, 0x75, 0x61, 0x72,
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0x65, 0x00, 0x00, 0x0a, 0x09, 0x01, 0x07, 0x00, 0x20, 0x00, 0x20, 0x00,
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0x7e, 0x0b,
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]);
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var inst = WasmModule(data).instantiate(WasmImports());
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var fn = inst.lookupFunction<Int64 Function(Int64)>("square");
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int n = fn.call([1234]);
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Expect.equals(1234 * 1234, n);
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}
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