This highly improves interop with Swift. It would map all
pointers as implicitly unwrapped optionals, which skip all
null safety checks. Adding `_Nullable` to pointer types
makes swift map them as optionals.
Also constructors are now nullable since it's valid to return nil from
Go code.
Change-Id: If0506bb80f31bf36f11522c16a1e66d77be935f8
GitHub-Last-Rev: bd6c30f7f50ef5ea5797b07073f0a4a70d545025
GitHub-Pull-Request: golang/mobile#26
Reviewed-on: https://go-review.googlesource.com/c/mobile/+/159477
Run-TryBot: Elias Naur <mail@eliasnaur.com>
Reviewed-by: Elias Naur <mail@eliasnaur.com>
Current generated headers work because they require `ref.h` to be loaded beforehand by the bridging header. However, in some cases where the bridging header is generated by another tool (such as Bazel), the order can't be guaranteed.
Fix that by explicitly importing `ref.h` in the headers that need it.
Change-Id: I444453a0ebdf53e14ba1b5290f7cc7084eaf2c07
GitHub-Last-Rev: e1e1e915bf0428d871cb1a268c8456cf7051d383
GitHub-Pull-Request: golang/mobile#28
Reviewed-on: https://go-review.googlesource.com/c/159758
Reviewed-by: Elias Naur <mail@eliasnaur.com>
Xcode 9 now enables CLANG_WARN_STRICT_PROTOTYPES by default.
This update ObjC function prototypes with no params from
FOUNDATION_EXPORT Something* DoSomething();
to
FOUNDATION_EXPORT Something* DoSomething(void);
Change-Id: I23b1d3e70a2ede2d2d77951ffe8a1a9598a1b7a0
Reviewed-on: https://go-review.googlesource.com/68970
Reviewed-by: Elias Naur <elias.naur@gmail.com>
Since generated names now have their package names prefixed, the
extra prefix, "Go", is both confusing and counter-productive to
making the generated ObjC code look like any other native code.
Change the default to the empty prefix, while preserving support
for an explicit prefix if needed.
This is a backwards incompatible change; to keep the old behaviour,
specify "-prefix Go" to the gobind or gomobile command.
While we're here, fix the Ivy example for the recent change in
error returns.
Change-Id: I7fef4a92a18ddadee972ccf359652e3b31624f33
Reviewed-on: https://go-review.googlesource.com/34643
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Since the Go package name is already prefixed to generated ObjC
names, the empty extra prefix is useful. Support that by not reverting
to the default extra prefix, "Go", if -prefix "" is specified.
To avoid file name clashes with the Go header files, add ".objc" to
the ObjC-facing header names.
Change-Id: I559fe60d7474521617f23894af247c6019ff2a21
Reviewed-on: https://go-review.googlesource.com/33954
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Accept ObjC API wrapper types as arguments and return values from
bound Go package functions and methods. Also, allow Go structs
to extend ObjC classes and implement ObjC protocols as well as override
and implement methods.
This is the third and final part of the implementation of the golang/go#17102
proposal.
Fixesgolang/go#17102
Change-Id: I601d90fb6d22b8d6f8b7d5fe0130daa1a4dd4734
Reviewed-on: https://go-review.googlesource.com/29175
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Gobind uses strings for passing errors across the language barrier.
However, since Gobind doesn't have a concept of a nil string, it
can't separate an empty native string from a nil string.
In turn, that means that empty errors, exceptions or NSError * with
an empty description are treated as no error. With ObjC, empty errors
are replaced with a default string to workaround the issue, while
with Java empty errors are silently ignored.
Fix this by replacing strings with actual error objects, wrapping
the Go error, Java Throwable or ObjC NSError *, and letting the
existing bind machinery take care of passing the references across.
It's a large change for a small corner case, but I believe objects
are a better fit for exception that strings. Error objects also
naturally leads to future additions, for example accessing the
exception class name or chained exception.
Change-Id: Ie03b47cafcb231ad1e12a80195693fa7459c6265
Reviewed-on: https://go-review.googlesource.com/24100
Reviewed-by: David Crawshaw <crawshaw@golang.org>
