Break apart -[RCTComponentData propBlockForKey:inDictionary:]
Reviewed By: shergin Differential Revision: D4578549 fbshipit-source-id: 726773fdf8c97cdcc3b0540b32278e36c00b19b5
This commit is contained in:
Pieter De Baets
Facebook Github Bot
parent
ebe3355de7
commit
bdd27f4696
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@ -19,31 +19,13 @@
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#import "UIView+React.h"
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typedef void (^RCTPropBlock)(id<RCTComponent> view, id json);
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@interface RCTComponentProp : NSObject
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@property (nonatomic, copy, readonly) NSString *type;
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@property (nonatomic, copy) RCTPropBlock propBlock;
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@end
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@implementation RCTComponentProp
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- (instancetype)initWithType:(NSString *)type
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{
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if ((self = [super init])) {
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_type = [type copy];
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}
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return self;
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}
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@end
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typedef NSMutableDictionary<NSString *, RCTPropBlock> RCTPropBlockDictionary;
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@implementation RCTComponentData
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{
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id<RCTComponent> _defaultView; // Only needed for RCT_CUSTOM_VIEW_PROPERTY
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NSMutableDictionary<NSString *, RCTPropBlock> *_viewPropBlocks;
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NSMutableDictionary<NSString *, RCTPropBlock> *_shadowPropBlocks;
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RCTPropBlockDictionary *_viewPropBlocks;
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RCTPropBlockDictionary *_shadowPropBlocks;
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BOOL _implementsUIBlockToAmendWithShadowViewRegistry;
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__weak RCTBridge *_bridge;
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}
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@ -120,244 +102,250 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
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return shadowView;
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}
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- (RCTPropBlock)propBlockForKey:(NSString *)name
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inDictionary:(NSMutableDictionary<NSString *, RCTPropBlock> *)propBlocks
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- (void)callCustomSetter:(SEL)setter onView:(id<RCTComponent>)view withProp:(id)json isShadowView:(BOOL)isShadowView
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{
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BOOL shadowView = (propBlocks == _shadowPropBlocks);
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RCTPropBlock propBlock = propBlocks[name];
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if (!propBlock) {
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__weak RCTComponentData *weakSelf = self;
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// Get type
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SEL type = NULL;
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NSString *keyPath = nil;
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SEL selector = NSSelectorFromString([NSString stringWithFormat:@"propConfig%@_%@", shadowView ? @"Shadow" : @"", name]);
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if ([_managerClass respondsToSelector:selector]) {
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NSArray<NSString *> *typeAndKeyPath =
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((NSArray<NSString *> *(*)(id, SEL))objc_msgSend)(_managerClass, selector);
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type = RCTConvertSelectorForType(typeAndKeyPath[0]);
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keyPath = typeAndKeyPath.count > 1 ? typeAndKeyPath[1] : nil;
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} else {
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propBlock = ^(__unused id view, __unused id json) {};
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propBlocks[name] = propBlock;
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return propBlock;
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json = RCTNilIfNull(json);
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if (!isShadowView) {
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if (!json && !_defaultView) {
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// Only create default view if json is null
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_defaultView = [self createViewWithTag:nil];
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}
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((void (*)(id, SEL, id, id, id))objc_msgSend)(self.manager, setter, json, view, _defaultView);
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} else {
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((void (*)(id, SEL, id, id))objc_msgSend)(self.manager, setter, json, view);
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}
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}
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// Check for custom setter
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if ([keyPath isEqualToString:@"__custom__"]) {
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// Get custom setter. There is no default view in the shadow case, so the selector is different.
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NSString *selectorString;
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if (!shadowView) {
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selectorString = [NSString stringWithFormat:@"set_%@:for%@View:withDefaultView:", name, shadowView ? @"Shadow" : @""];
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} else {
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selectorString = [NSString stringWithFormat:@"set_%@:forShadowView:", name];
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}
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SEL customSetter = NSSelectorFromString(selectorString);
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propBlock = ^(id<RCTComponent> view, id json) {
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RCTComponentData *strongSelf = weakSelf;
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if (!strongSelf) {
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static RCTPropBlock createEventSetter(NSString *propName, SEL setter, RCTBridge *bridge)
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{
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__weak RCTBridge *weakBridge = bridge;
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return ^(id target, id json) {
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void (^eventHandler)(NSDictionary *event) = nil;
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if ([RCTConvert BOOL:json]) {
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__weak id<RCTComponent> weakTarget = target;
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eventHandler = ^(NSDictionary *event) {
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// The component no longer exists, we shouldn't send the event
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id<RCTComponent> strongTarget = weakTarget;
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if (!strongTarget) {
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return;
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}
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json = RCTNilIfNull(json);
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if (!shadowView) {
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if (!json && !strongSelf->_defaultView) {
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// Only create default view if json is null
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strongSelf->_defaultView = [strongSelf createViewWithTag:nil];
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}
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((void (*)(id, SEL, id, id, id))objc_msgSend)(
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strongSelf.manager, customSetter, json, view, strongSelf->_defaultView
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);
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} else {
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((void (*)(id, SEL, id, id))objc_msgSend)(
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strongSelf.manager, customSetter, json, view
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);
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}
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};
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} else {
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// Disect keypath
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NSString *key = name;
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NSArray<NSString *> *parts = [keyPath componentsSeparatedByString:@"."];
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if (parts) {
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key = parts.lastObject;
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parts = [parts subarrayWithRange:(NSRange){0, parts.count - 1}];
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}
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// Get property getter
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SEL getter = NSSelectorFromString(key);
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// Get property setter
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SEL setter = NSSelectorFromString([NSString stringWithFormat:@"set%@%@:",
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[key substringToIndex:1].uppercaseString,
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[key substringFromIndex:1]]);
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// Build setter block
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void (^setterBlock)(id target, id json) = nil;
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if (type == NSSelectorFromString(@"RCTBubblingEventBlock:") ||
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type == NSSelectorFromString(@"RCTDirectEventBlock:")) {
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// Special case for event handlers
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__weak RCTViewManager *weakManager = self.manager;
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setterBlock = ^(id target, id json) {
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__weak id<RCTComponent> weakTarget = target;
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((void (*)(id, SEL, id))objc_msgSend)(target, setter, [RCTConvert BOOL:json] ? ^(NSDictionary *body) {
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body = [NSMutableDictionary dictionaryWithDictionary:body];
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((NSMutableDictionary *)body)[@"target"] = weakTarget.reactTag;
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NSMutableDictionary *mutableEvent = [NSMutableDictionary dictionaryWithDictionary:event];
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mutableEvent[@"target"] = strongTarget.reactTag;
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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[weakManager.bridge.eventDispatcher sendInputEventWithName:RCTNormalizeInputEventName(name) body:body];
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[weakBridge.eventDispatcher sendInputEventWithName:RCTNormalizeInputEventName(propName) body:mutableEvent];
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#pragma clang diagnostic pop
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} : nil);
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};
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};
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}
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((void (*)(id, SEL, id))objc_msgSend)(target, setter, eventHandler);
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};
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}
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} else {
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static RCTPropBlock createNSInvocationSetter(NSMethodSignature *typeSignature, SEL type, SEL getter, SEL setter)
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{
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NSInvocation *typeInvocation = [NSInvocation invocationWithMethodSignature:typeSignature];
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typeInvocation.selector = type;
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typeInvocation.target = [RCTConvert class];
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// Ordinary property handlers
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NSMethodSignature *typeSignature = [[RCTConvert class] methodSignatureForSelector:type];
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if (!typeSignature) {
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RCTLogError(@"No +[RCTConvert %@] function found.", NSStringFromSelector(type));
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return ^(__unused id<RCTComponent> view, __unused id json){};
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}
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switch (typeSignature.methodReturnType[0]) {
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__block NSInvocation *targetInvocation = nil;
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__block NSMutableData *defaultValue = nil;
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#define RCT_CASE(_value, _type) \
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case _value: { \
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__block BOOL setDefaultValue = NO; \
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__block _type defaultValue; \
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_type (*convert)(id, SEL, id) = (typeof(convert))objc_msgSend; \
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_type (*get)(id, SEL) = (typeof(get))objc_msgSend; \
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void (*set)(id, SEL, _type) = (typeof(set))objc_msgSend; \
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setterBlock = ^(id target, id json) { \
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if (json) { \
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if (!setDefaultValue && target) { \
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if ([target respondsToSelector:getter]) { \
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defaultValue = get(target, getter); \
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} \
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setDefaultValue = YES; \
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} \
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set(target, setter, convert([RCTConvert class], type, json)); \
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} else if (setDefaultValue) { \
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set(target, setter, defaultValue); \
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} \
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}; \
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break; \
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}
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return ^(id target, id json) {
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if (!target) {
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return;
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}
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RCT_CASE(_C_SEL, SEL)
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RCT_CASE(_C_CHARPTR, const char *)
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RCT_CASE(_C_CHR, char)
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RCT_CASE(_C_UCHR, unsigned char)
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RCT_CASE(_C_SHT, short)
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RCT_CASE(_C_USHT, unsigned short)
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RCT_CASE(_C_INT, int)
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RCT_CASE(_C_UINT, unsigned int)
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RCT_CASE(_C_LNG, long)
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RCT_CASE(_C_ULNG, unsigned long)
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RCT_CASE(_C_LNG_LNG, long long)
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RCT_CASE(_C_ULNG_LNG, unsigned long long)
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RCT_CASE(_C_FLT, float)
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RCT_CASE(_C_DBL, double)
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RCT_CASE(_C_BOOL, BOOL)
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RCT_CASE(_C_PTR, void *)
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RCT_CASE(_C_ID, id)
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// Get default value
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if (!defaultValue) {
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if (!json) {
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// We only set the defaultValue when we first pass a non-null
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// value, so if the first value sent for a prop is null, it's
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// a no-op (we'd be resetting it to its default when its
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// value is already the default).
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return;
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}
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// Use NSMutableData to store defaultValue instead of malloc, so
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// it will be freed automatically when setterBlock is released.
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defaultValue = [[NSMutableData alloc] initWithLength:typeSignature.methodReturnLength];
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if ([target respondsToSelector:getter]) {
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NSMethodSignature *signature = [target methodSignatureForSelector:getter];
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NSInvocation *sourceInvocation = [NSInvocation invocationWithMethodSignature:signature];
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sourceInvocation.selector = getter;
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[sourceInvocation invokeWithTarget:target];
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[sourceInvocation getReturnValue:defaultValue.mutableBytes];
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}
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}
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case _C_STRUCT_B:
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default: {
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// Get value
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BOOL freeValueOnCompletion = NO;
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void *value = defaultValue.mutableBytes;
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if (json) {
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freeValueOnCompletion = YES;
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value = malloc(typeSignature.methodReturnLength);
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[typeInvocation setArgument:&json atIndex:2];
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[typeInvocation invoke];
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[typeInvocation getReturnValue:value];
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}
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NSInvocation *typeInvocation = [NSInvocation invocationWithMethodSignature:typeSignature];
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typeInvocation.selector = type;
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typeInvocation.target = [RCTConvert class];
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// Set value
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if (!targetInvocation) {
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NSMethodSignature *signature = [target methodSignatureForSelector:setter];
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targetInvocation = [NSInvocation invocationWithMethodSignature:signature];
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targetInvocation.selector = setter;
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}
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[targetInvocation setArgument:value atIndex:2];
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[targetInvocation invokeWithTarget:target];
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if (freeValueOnCompletion) {
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// Only free the value if we `malloc`d it locally, otherwise it
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// points to `defaultValue.mutableBytes`, which is managed by ARC.
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free(value);
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}
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};
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}
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__block NSInvocation *targetInvocation = nil;
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__block NSMutableData *defaultValue = nil;
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- (RCTPropBlock)createPropBlock:(NSString *)name isShadowView:(BOOL)isShadowView
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{
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// Get type
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SEL type = NULL;
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NSString *keyPath = nil;
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SEL selector = NSSelectorFromString([NSString stringWithFormat:@"propConfig%@_%@", isShadowView ? @"Shadow" : @"", name]);
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if ([_managerClass respondsToSelector:selector]) {
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NSArray<NSString *> *typeAndKeyPath = ((NSArray<NSString *> *(*)(id, SEL))objc_msgSend)(_managerClass, selector);
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type = RCTConvertSelectorForType(typeAndKeyPath[0]);
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keyPath = typeAndKeyPath.count > 1 ? typeAndKeyPath[1] : nil;
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} else {
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return ^(__unused id view, __unused id json) {};
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}
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setterBlock = ^(id target, id json) { \
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// Check for custom setter
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if ([keyPath isEqualToString:@"__custom__"]) {
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// Get custom setter. There is no default view in the shadow case, so the selector is different.
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NSString *selectorString;
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if (!isShadowView) {
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selectorString = [NSString stringWithFormat:@"set_%@:for%@View:withDefaultView:", name, isShadowView ? @"Shadow" : @""];
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} else {
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selectorString = [NSString stringWithFormat:@"set_%@:forShadowView:", name];
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}
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if (!target) {
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return;
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}
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SEL customSetter = NSSelectorFromString(selectorString);
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__weak RCTComponentData *weakSelf = self;
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return ^(id<RCTComponent> view, id json) {
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[weakSelf callCustomSetter:customSetter onView:view withProp:json isShadowView:isShadowView];
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};
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} else {
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// Disect keypath
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NSString *key = name;
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NSArray<NSString *> *parts = [keyPath componentsSeparatedByString:@"."];
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if (parts) {
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key = parts.lastObject;
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parts = [parts subarrayWithRange:(NSRange){0, parts.count - 1}];
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}
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// Get default value
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if (!defaultValue) {
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if (!json) {
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// We only set the defaultValue when we first pass a non-null
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// value, so if the first value sent for a prop is null, it's
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// a no-op (we'd be resetting it to its default when its
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// value is already the default).
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return;
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}
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// Use NSMutableData to store defaultValue instead of malloc, so
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// it will be freed automatically when setterBlock is released.
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defaultValue = [[NSMutableData alloc] initWithLength:typeSignature.methodReturnLength];
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if ([target respondsToSelector:getter]) {
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NSMethodSignature *signature = [target methodSignatureForSelector:getter];
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NSInvocation *sourceInvocation = [NSInvocation invocationWithMethodSignature:signature];
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sourceInvocation.selector = getter;
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[sourceInvocation invokeWithTarget:target];
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[sourceInvocation getReturnValue:defaultValue.mutableBytes];
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}
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}
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// Get property getter
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SEL getter = NSSelectorFromString(key);
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// Get value
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BOOL freeValueOnCompletion = NO;
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void *value = defaultValue.mutableBytes;
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if (json) {
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freeValueOnCompletion = YES;
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value = malloc(typeSignature.methodReturnLength);
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[typeInvocation setArgument:&json atIndex:2];
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[typeInvocation invoke];
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[typeInvocation getReturnValue:value];
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}
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// Get property setter
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SEL setter = NSSelectorFromString([NSString stringWithFormat:@"set%@%@:",
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[key substringToIndex:1].uppercaseString,
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[key substringFromIndex:1]]);
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// Set value
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if (!targetInvocation) {
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NSMethodSignature *signature = [target methodSignatureForSelector:setter];
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targetInvocation = [NSInvocation invocationWithMethodSignature:signature];
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targetInvocation.selector = setter;
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}
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[targetInvocation setArgument:value atIndex:2];
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[targetInvocation invokeWithTarget:target];
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if (freeValueOnCompletion) {
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// Only free the value if we `malloc`d it locally, otherwise it
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// points to `defaultValue.mutableBytes`, which is managed by ARC.
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free(value);
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}
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};
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break;
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}
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// Build setter block
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void (^setterBlock)(id target, id json) = nil;
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if (type == NSSelectorFromString(@"RCTBubblingEventBlock:") ||
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type == NSSelectorFromString(@"RCTDirectEventBlock:")) {
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// Special case for event handlers
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setterBlock = createEventSetter(name, setter, _bridge);
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} else {
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// Ordinary property handlers
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NSMethodSignature *typeSignature = [[RCTConvert class] methodSignatureForSelector:type];
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if (!typeSignature) {
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RCTLogError(@"No +[RCTConvert %@] function found.", NSStringFromSelector(type));
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return ^(__unused id<RCTComponent> view, __unused id json){};
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}
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switch (typeSignature.methodReturnType[0]) {
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#define RCT_CASE(_value, _type) \
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case _value: { \
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__block BOOL setDefaultValue = NO; \
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__block _type defaultValue; \
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_type (*convert)(id, SEL, id) = (typeof(convert))objc_msgSend; \
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_type (*get)(id, SEL) = (typeof(get))objc_msgSend; \
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void (*set)(id, SEL, _type) = (typeof(set))objc_msgSend; \
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setterBlock = ^(id target, id json) { \
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if (json) { \
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if (!setDefaultValue && target) { \
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if ([target respondsToSelector:getter]) { \
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defaultValue = get(target, getter); \
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} \
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setDefaultValue = YES; \
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} \
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set(target, setter, convert([RCTConvert class], type, json)); \
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} else if (setDefaultValue) { \
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set(target, setter, defaultValue); \
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} \
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}; \
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break; \
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}
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RCT_CASE(_C_SEL, SEL)
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RCT_CASE(_C_CHARPTR, const char *)
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RCT_CASE(_C_CHR, char)
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RCT_CASE(_C_UCHR, unsigned char)
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RCT_CASE(_C_SHT, short)
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RCT_CASE(_C_USHT, unsigned short)
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RCT_CASE(_C_INT, int)
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RCT_CASE(_C_UINT, unsigned int)
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RCT_CASE(_C_LNG, long)
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RCT_CASE(_C_ULNG, unsigned long)
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RCT_CASE(_C_LNG_LNG, long long)
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RCT_CASE(_C_ULNG_LNG, unsigned long long)
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RCT_CASE(_C_FLT, float)
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RCT_CASE(_C_DBL, double)
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RCT_CASE(_C_BOOL, BOOL)
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RCT_CASE(_C_PTR, void *)
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RCT_CASE(_C_ID, id)
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case _C_STRUCT_B:
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default: {
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setterBlock = createNSInvocationSetter(typeSignature, type, getter, setter);
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break;
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}
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}
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|
||||
propBlock = ^(__unused id view, __unused id json) {
|
||||
|
||||
// Follow keypath
|
||||
id target = view;
|
||||
for (NSString *part in parts) {
|
||||
target = [target valueForKey:part];
|
||||
}
|
||||
|
||||
// Set property with json
|
||||
setterBlock(target, RCTNilIfNull(json));
|
||||
};
|
||||
}
|
||||
|
||||
if (RCT_DEBUG) {
|
||||
return ^(__unused id view, __unused id json) {
|
||||
// Follow keypath
|
||||
id target = view;
|
||||
for (NSString *part in parts) {
|
||||
target = [target valueForKey:part];
|
||||
}
|
||||
|
||||
// Provide more useful log feedback if there's an error
|
||||
RCTPropBlock unwrappedBlock = propBlock;
|
||||
propBlock = ^(id<RCTComponent> view, id json) {
|
||||
NSString *logPrefix = [NSString stringWithFormat:
|
||||
@"Error setting property '%@' of %@ with tag #%@: ",
|
||||
name, weakSelf.name, view.reactTag];
|
||||
// Set property with json
|
||||
setterBlock(target, RCTNilIfNull(json));
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
RCTPerformBlockWithLogPrefix(^{ unwrappedBlock(view, json); }, logPrefix);
|
||||
};
|
||||
}
|
||||
- (RCTPropBlock)propBlockForKey:(NSString *)name isShadowView:(BOOL)isShadowView
|
||||
{
|
||||
RCTPropBlockDictionary *propBlocks = isShadowView ? _shadowPropBlocks : _viewPropBlocks;
|
||||
RCTPropBlock propBlock = propBlocks[name];
|
||||
if (!propBlock) {
|
||||
propBlock = [self createPropBlock:name isShadowView:isShadowView];
|
||||
|
||||
#if RCT_DEBUG
|
||||
// Provide more useful log feedback if there's an error
|
||||
RCTPropBlock unwrappedBlock = propBlock;
|
||||
__weak __typeof(self) weakSelf = self;
|
||||
propBlock = ^(id<RCTComponent> view, id json) {
|
||||
NSString *logPrefix = [NSString stringWithFormat:@"Error setting property '%@' of %@ with tag #%@: ",
|
||||
name, weakSelf.name, view.reactTag];
|
||||
RCTPerformBlockWithLogPrefix(^{
|
||||
unwrappedBlock(view, json);
|
||||
}, logPrefix);
|
||||
};
|
||||
#endif
|
||||
propBlocks[name] = [propBlock copy];
|
||||
}
|
||||
return propBlock;
|
||||
|
|
@ -370,7 +358,7 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
|
|||
}
|
||||
|
||||
[props enumerateKeysAndObjectsUsingBlock:^(NSString *key, id json, __unused BOOL *stop) {
|
||||
[self propBlockForKey:key inDictionary:self->_viewPropBlocks](view, json);
|
||||
[self propBlockForKey:key isShadowView:NO](view, json);
|
||||
}];
|
||||
|
||||
if ([view respondsToSelector:@selector(didSetProps:)]) {
|
||||
|
|
@ -385,7 +373,7 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
|
|||
}
|
||||
|
||||
[props enumerateKeysAndObjectsUsingBlock:^(NSString *key, id json, __unused BOOL *stop) {
|
||||
[self propBlockForKey:key inDictionary:self->_shadowPropBlocks](shadowView, json);
|
||||
[self propBlockForKey:key isShadowView:YES](shadowView, json);
|
||||
}];
|
||||
|
||||
if ([shadowView respondsToSelector:@selector(didSetProps:)]) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue