Changes in this CL:
- Crate-level documentation for bit_field crate!
- Use absolute paths within generated code so that the caller is no
longer required to have various implementation details from the
bit_field crate in scope.
- Check that the total number of bits is a multiple of 8. Previously, it
would generate compilable code that panicked when invoking accessors.
- Provide B0 .. B64 as shorthand for BitField0 .. BitField64.
- Use `bool` as the bool specifier rather than BitFieldBool.
- Disallow BitFieldSpecifier impls outside the bit_field crate.
- Simplify declaration of the BitFieldN types by replacing the recursive
macro_rules with a simpler procedural macro.
TEST=`cargo test` in bit_field and in bit_field_derive
Change-Id: Ica9347bc89901de85f74366edd038fb5d8042ee6
Reviewed-on: https://chromium-review.googlesource.com/1382578
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: Jingkui Wang <jkwang@google.com>
BitFieldSpecifiers are now generated by macros.
Can use BitFieldBool to specify a bool field.
BUG=chromium:831850
TEST=local cargo build/test
Change-Id: Id6b4a773ab612cea39ba811c3ec1da212b618ba2
Reviewed-on: https://chromium-review.googlesource.com/1356912
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Rustfmt currently does not touch the content of macro invocations. Also
it used to have a bug where if it changed indentation of a block of code
containing a multi-line macro invocation then the macro input would not
get correspondingly indented. That bug was visible across some of the
code here.
For example:
// rustfmt decides to un-indent the surrounding block:
let data_size_in_bytes = quote!(
( #( #field_types::FIELD_WIDTH as usize )+* ) / 8
);
// poorly formatted resulting code:
let data_size_in_bytes = quote!(
( #( #field_types::FIELD_WIDTH as usize )+* ) / 8
);
// should have been:
let data_size_in_bytes = quote!(
( #( #field_types::FIELD_WIDTH as usize )+* ) / 8
);
TEST=cargo check crosvm
TEST=cargo test each of the three proc-macro crates
CQ-DEPEND=CL:1338507
Change-Id: Id2d456a8d85d719fbc0a65624f153f0f9df6f500
Reviewed-on: https://chromium-review.googlesource.com/1338508
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Support macro derive(BitField) to make life easier.
BUG=None.
TEST=local build and run test.
Change-Id: I582620de250017fb7c0b601f9ad4fbcbbc2fe02a
Reviewed-on: https://chromium-review.googlesource.com/1069331
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Jingkui Wang <jkwang@google.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
