fix(0.81): replace RCTUISecureTextField #include hack with proper OOP subclass#2894
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The old RCTUISecureTextField.m used `#include "../RCTUITextField.mm"` to re-compile the entire implementation with RCT_SUBCLASS_SECURETEXTFIELD defined. This caused duplicate symbol errors in SPM builds because both files were compiled as separate translation units. Replace with a proper OOP subclass: RCTUISecureTextField now inherits from RCTUITextField and overrides only what differs (NSSecureTextFieldCell). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
Backport of #2895 to
0.81-stable.#include .mmtrick inRCTUISecureTextFieldwith proper OOP inheritanceRCTUISecureTextFieldnow subclassesRCTUITextFielddirectly and overrides+cellClassto returnRCTUISecureTextFieldCell : NSSecureTextFieldCellRCT_SUBCLASS_SECURETEXTFIELDpreprocessor conditionals fromRCTUITextField.h/.mmisKindOfClass:[NSSecureTextField class]checks to[RCTUISecureTextField class]in both Paper and Fabric code pathsMotivation
The old approach
#included the entire 734-lineRCTUITextField.mmwith a#defineto swap class/superclass names — a preprocessor trick to work around a diamond inheritance problem. This caused duplicate-symbol linker errors on non-macOS SPM builds and was fragile and confusing.Since
NSSecureTextField's masking behavior lives entirely inNSSecureTextFieldCell, the proper fix is to subclassRCTUITextFieldand override just the cell class (~50 lines of duplicated cell code vs. 734 lines recompiled via include).Test plan
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