tree 9af62e1bb39b0e606c8c8add45ba08c00b670fe1
parent 66d2bbab070010502a4e21e132efaf2772f0c635
author Daco Harkes <dacoharkes@google.com> 1638386377 +0000
committer Commit Bot <commit-bot@chromium.org> 1638386377 +0000

[vm/ffi] Introduce `Abi`

This introduces the application binary interface (ABI) concept to
`dart:ffi` as a class with opaque instances.

We will use this for providing mappings for ABI-specific types.
Bug: https://github.com/dart-lang/sdk/issues/42563
Bug: https://github.com/dart-lang/sdk/issues/42816
Closes: https://github.com/dart-lang/sdk/issues/45254

Later, we might open up the contents of `Abi` if need be.

Some API design discussion notes:
https://github.com/dart-lang/sdk/issues/42563#issuecomment-981774001

TEST=tests/ffi/abi_test.dart

Change-Id: Iebf290fc12f37d6f4236432ddf27ab3e12bde06d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/221627
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>