25 lines
812 B
Objective-C
25 lines
812 B
Objective-C
// Don't include any headers, cross compilation is difficult to set up
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// properly in such situations.
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/// We're linking to `libobjc` in build.rs, so this should be available.
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///
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/// See <https://clang.llvm.org/docs/AutomaticReferenceCounting.html#arc-runtime-objc-retain>.
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id objc_retain(id value);
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/// Unsure how C name resolution works, so we make sure to version this symbol.
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///
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/// Return `unsigned char` since it is guaranteed to be `u8` on all platforms.
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unsigned char rust_objc_sys_0_2_try_catch_exception(void (*f)(void *), void *context, id *error) {
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@try {
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f(context);
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if (error) {
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*error = (id)0; // nil
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}
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return 0;
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} @catch (id exception) {
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if (error) {
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*error = objc_retain(exception);
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}
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return 1;
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}
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}
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