fix(ios): x86_64 simulator build fails on Xcode 26 due to ffi_call target type mismatch

[skrtdev]

Summary

iOS simulator builds targeting x86_64 fail on Xcode 26 when compiling NativeApiJsiInvocation.h in the NativeScript FFI layer.

Error

NativeApiJsiInvocation.h:485:5: error: no matching function for call to 'ffi_call'
NativeApiJsiInvocation.h:480:5: error: cannot initialize a variable of type 'void *' with an rvalue of type 'void (*)()'

Observed with iPhoneSimulator26.4.sdk (EAS / CI and local Xcode 26 builds).

Cause

In the __x86_64__ branch of callObjCSelector, the Objective-C message send function is stored in a void* variable before being passed to ffi_call:

void* target = dispatchSuperClass != Nil
                   ? (isStret ? FFI_FN(objc_msgSendSuper_stret) : FFI_FN(objc_msgSendSuper))
                   : (isStret ? FFI_FN(objc_msgSend_stret) : FFI_FN(objc_msgSend));
ffi_call(&signature->cif, target, returnStorage.data(), values.data());

FFI_FN() expands to ((void (*)(void))f), but ffi_call expects its second argument to be void (*)(void), not void*. Older Clang accepted the implicit conversion; Xcode 26’s Clang rejects it.

The non-x86_64 branch already passes FFI_FN(...) directly and compiles fine.

Proposed fix

Change the variable type to match ffi_call’s signature:

-    void* target = dispatchSuperClass != Nil
+    void (*target)(void) = dispatchSuperClass != Nil

File: NativeScript/ffi/shared/jsi/NativeApiJsiInvocation.h (around line 480).

Environment

• Xcode 26 / iPhoneSimulator26.4.sdk
• Architecture: x86_64 (Intel simulator)
• Package: @nativescript/react-native (published from this repo)