[ffi] Common C integer types (dart-archive/ffi#128)

.github/workflows/ffi.yaml

@@ -46,8 +46,8 @@ jobs:
       fail-fast: false
       matrix:
         # Add macos-latest and/or windows-latest if relevant for this package.
-        os: [ubuntu-latest]
-        sdk: [2.12.0, dev]
+        os: [macos-latest, ubuntu-latest, windows-latest]
+        sdk: [2.16.0-124.0.dev, dev] # TODO(dacoharkes): Set to 2.16.0 after SDK release.
     steps:
       - uses: actions/checkout@v2
       - uses: dart-lang/[email protected]

pkgs/ffi/CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.2.0-dev.0
+
+Added common C integer types as ABI-specific integers. These common C integer
+types will make their way into `dart:ffi` in 2.17 and be deprecated from this
+package. Having them in this package enables using them in Dart 2.16.
+
+This pre-release requires Dart `2.16.0-118.0.dev` or greater. 
+
 ## 1.1.2
 
 Fixed unhandled exception in `withZoneArena` (#107).

pkgs/ffi/lib/ffi.dart

@@ -4,5 +4,6 @@
 
 export 'src/allocation.dart' show calloc, malloc;
 export 'src/arena.dart';
+export 'src/c_type.dart';
 export 'src/utf8.dart';
 export 'src/utf16.dart';

pkgs/ffi/lib/src/allocation.dart

@@ -85,8 +85,6 @@ class _MallocAllocator implements Allocator {
   /// Throws an [ArgumentError] if the memory pointed to by [pointer] cannot be
   /// freed.
   ///
-  // TODO(dartbug.com/36855): Once we have a ffi.Bool type we can use it instead
-  // of testing the return integer to be non-zero.
   @override
   void free(Pointer pointer) {
     if (Platform.isWindows) {
@@ -151,8 +149,6 @@ class _CallocAllocator implements Allocator {
   /// Throws an [ArgumentError] if the memory pointed to by [pointer] cannot be
   /// freed.
   ///
-  // TODO(dartbug.com/36855): Once we have a ffi.Bool type we can use it instead
-  // of testing the return integer to be non-zero.
   @override
   void free(Pointer pointer) {
     if (Platform.isWindows) {