mirror of
https://github.com/dart-lang/sdk
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![Leaf Petersen](/assets/img/avatar_default.png)
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
298 lines
7 KiB
Dart
298 lines
7 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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// @dart = 2.9
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import 'dart:ffi';
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import 'dart:math';
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import 'dart:typed_data';
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import 'package:expect/expect.dart';
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import "package:ffi/ffi.dart";
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main() {
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testInt8Load();
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testInt8Store();
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testUint8Load();
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testUint8Store();
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testInt16Load();
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testInt16Store();
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testUint16Load();
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testUint16Store();
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testInt32Load();
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testInt32Store();
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testUint32Load();
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testUint32Store();
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testInt64Load();
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testInt64Store();
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testUint64Load();
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testUint64Store();
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testFloatLoad();
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testFloatStore();
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testDoubleLoad();
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testDoubleStore();
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testArrayLoad();
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testArrayStore();
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testNegativeArray();
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testAlignment();
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}
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// For signed int tests, we store 0xf* and load -1 to check sign-extension.
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// For unsigned int tests, we store 0xf* and load the same to check truncation.
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void testInt8Load() {
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// Load
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Pointer<Int8> ptr = calloc();
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ptr.value = 0xff;
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Int8List list = ptr.asTypedList(1);
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Expect.equals(list[0], -1);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testInt8Store() {
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// Store
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Pointer<Int8> ptr = calloc();
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Int8List list = ptr.asTypedList(1);
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list[0] = 0xff;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, -1);
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calloc.free(ptr);
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}
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void testUint8Load() {
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// Load
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Pointer<Uint8> ptr = calloc();
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ptr.value = 0xff;
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Uint8List list = ptr.asTypedList(1);
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Expect.equals(list[0], 0xff);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testUint8Store() {
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// Store
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Pointer<Uint8> ptr = calloc();
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Uint8List list = ptr.asTypedList(1);
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list[0] = 0xff;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, 0xff);
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calloc.free(ptr);
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}
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void testInt16Load() {
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// Load
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Pointer<Int16> ptr = calloc();
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ptr.value = 0xffff;
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Int16List list = ptr.asTypedList(1);
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Expect.equals(list[0], -1);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testInt16Store() {
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// Store
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Pointer<Int16> ptr = calloc();
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Int16List list = ptr.asTypedList(1);
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list[0] = 0xffff;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, -1);
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calloc.free(ptr);
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}
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void testUint16Load() {
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// Load
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Pointer<Uint16> ptr = calloc();
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ptr.value = 0xffff;
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Uint16List list = ptr.asTypedList(1);
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Expect.equals(list[0], 0xffff);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testUint16Store() {
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// Store
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Pointer<Uint16> ptr = calloc();
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Uint16List list = ptr.asTypedList(1);
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list[0] = 0xffff;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, 0xffff);
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calloc.free(ptr);
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}
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void testInt32Load() {
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// Load
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Pointer<Int32> ptr = calloc();
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ptr.value = 0xffffffff;
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Int32List list = ptr.asTypedList(1);
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Expect.equals(list[0], -1);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testInt32Store() {
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// Store
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Pointer<Int32> ptr = calloc();
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Int32List list = ptr.asTypedList(1);
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list[0] = 0xffffffff;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, -1);
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calloc.free(ptr);
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}
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void testUint32Load() {
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// Load
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Pointer<Uint32> ptr = calloc();
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ptr.value = 0xffffffff;
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Uint32List list = ptr.asTypedList(1);
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Expect.equals(list[0], 0xffffffff);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testUint32Store() {
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// Store
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Pointer<Uint32> ptr = calloc();
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Uint32List list = ptr.asTypedList(1);
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list[0] = 0xffffffff;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, 0xffffffff);
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calloc.free(ptr);
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}
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void testInt64Load() {
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// Load
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Pointer<Int64> ptr = calloc();
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ptr.value = 0xffffffffffffffff;
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Int64List list = ptr.asTypedList(1);
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Expect.equals(list[0], -1);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testInt64Store() {
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// Store
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Pointer<Int64> ptr = calloc();
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Int64List list = ptr.asTypedList(1);
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list[0] = 0xffffffffffffffff;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, -1);
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calloc.free(ptr);
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}
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void testUint64Load() {
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// Load
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Pointer<Uint64> ptr = calloc();
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ptr.value = 0xffffffffffffffff;
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Uint64List list = ptr.asTypedList(1);
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Expect.equals(list[0], 0xffffffffffffffff);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testUint64Store() {
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// Store
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Pointer<Uint64> ptr = calloc();
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Uint64List list = ptr.asTypedList(1);
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list[0] = 0xffffffffffffffff;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, 0xffffffffffffffff);
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calloc.free(ptr);
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}
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double maxFloat = (2 - pow(2, -23)) * pow(2, 127);
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double maxDouble = (2 - pow(2, -52)) * pow(2, pow(2, 10) - 1);
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void testFloatLoad() {
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// Load
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Pointer<Float> ptr = calloc();
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ptr.value = maxFloat;
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Float32List list = ptr.asTypedList(1);
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Expect.equals(list[0], maxFloat);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testFloatStore() {
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// Store
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Pointer<Float> ptr = calloc();
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Float32List list = ptr.asTypedList(1);
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list[0] = maxFloat;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, maxFloat);
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calloc.free(ptr);
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}
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void testDoubleLoad() {
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// Load
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Pointer<Double> ptr = calloc();
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ptr.value = maxDouble;
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Float64List list = ptr.asTypedList(1);
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Expect.equals(list[0], maxDouble);
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Expect.equals(list.length, 1);
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calloc.free(ptr);
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}
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void testDoubleStore() {
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// Store
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Pointer<Double> ptr = calloc();
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Float64List list = ptr.asTypedList(1);
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list[0] = maxDouble;
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Expect.equals(list.length, 1);
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Expect.equals(ptr.value, maxDouble);
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calloc.free(ptr);
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}
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void testArrayLoad() {
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const int count = 0x100;
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Pointer<Int32> ptr = calloc(count);
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for (int i = 0; i < count; ++i) {
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ptr[i] = i;
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}
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Int32List array = ptr.asTypedList(count);
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for (int i = 0; i < count; ++i) {
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Expect.equals(array[i], i);
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}
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calloc.free(ptr);
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}
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void testArrayStore() {
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const int count = 0x100;
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Pointer<Int32> ptr = calloc(count);
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Int32List array = ptr.asTypedList(count);
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for (int i = 0; i < count; ++i) {
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array[i] = i;
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}
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for (int i = 0; i < count; ++i) {
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Expect.equals(ptr[i], i);
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}
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calloc.free(ptr);
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}
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void testNegativeArray() {
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Pointer<Int32> ptr = nullptr;
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Expect.throws<ArgumentError>(() => ptr.asTypedList(-1));
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}
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// Tests that the address we're creating an ExternalTypedData from is aligned to
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// the element size.
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void testAlignment() {
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Expect.throws<ArgumentError>(
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() => Pointer<Int16>.fromAddress(1).asTypedList(1));
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Expect.throws<ArgumentError>(
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() => Pointer<Int32>.fromAddress(2).asTypedList(1));
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Expect.throws<ArgumentError>(
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() => Pointer<Int64>.fromAddress(4).asTypedList(1));
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Expect.throws<ArgumentError>(
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() => Pointer<Uint16>.fromAddress(1).asTypedList(1));
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Expect.throws<ArgumentError>(
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() => Pointer<Uint32>.fromAddress(2).asTypedList(1));
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Expect.throws<ArgumentError>(
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() => Pointer<Uint64>.fromAddress(4).asTypedList(1));
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Expect.throws<ArgumentError>(
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() => Pointer<Float>.fromAddress(2).asTypedList(1));
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Expect.throws<ArgumentError>(
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() => Pointer<Double>.fromAddress(4).asTypedList(1));
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}
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