mirror of
https://github.com/zhigang1992/react-native.git
synced 2026-04-28 12:15:37 +08:00
[React Native] RCT_EXPORT lvl.2
This commit is contained in:
Alex Akers
@@ -213,11 +213,18 @@ static NSArray *RCTBridgeModuleClassesByModuleID(void)
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static Class _globalExecutorClass;
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NS_INLINE NSString *RCTStringUpToFirstArgument(NSString *methodName) {
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NSRange colonRange = [methodName rangeOfString:@":"];
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if (colonRange.length) {
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methodName = [methodName substringToIndex:colonRange.location];
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}
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return methodName;
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}
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- (instancetype)initWithMethodName:(NSString *)methodName
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JSMethodName:(NSString *)JSMethodName
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{
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if ((self = [super init])) {
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_methodName = methodName;
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NSArray *parts = [[methodName substringWithRange:(NSRange){2, methodName.length - 3}] componentsSeparatedByString:@" "];
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@@ -228,14 +235,39 @@ static Class _globalExecutorClass;
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_moduleClassName = [_moduleClassName substringToIndex:categoryRange.location];
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}
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NSArray *argumentNames = nil;
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if ([parts[1] hasPrefix:@"__rct_export__"]) {
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// New format
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NSString *selectorString = [parts[1] substringFromIndex:14];
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_selector = NSSelectorFromString(selectorString);
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_JSMethodName = RCTStringUpToFirstArgument(selectorString);
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static NSRegularExpression *regExp;
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if (!regExp) {
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NSString *unusedPattern = @"(?:(?:__unused|__attribute__\\(\\(unused\\)\\)))";
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NSString *constPattern = @"(?:const)";
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NSString *constUnusedPattern = [NSString stringWithFormat:@"(?:(?:%@|%@)\\s*)", unusedPattern, constPattern];
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NSString *pattern = [NSString stringWithFormat:@"\\(%1$@?(\\w+?)(?:\\s*\\*)?%1$@?\\)", constUnusedPattern];
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regExp = [[NSRegularExpression alloc] initWithPattern:pattern options:0 error:NULL];
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}
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argumentNames = [NSMutableArray array];
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[regExp enumerateMatchesInString:JSMethodName options:0 range:NSMakeRange(0, JSMethodName.length) usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) {
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NSString *argumentName = [JSMethodName substringWithRange:[result rangeAtIndex:1]];
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[(NSMutableArray *)argumentNames addObject:argumentName];
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}];
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} else {
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// Old format
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NSString *selectorString = parts[1];
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_selector = NSSelectorFromString(selectorString);
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_JSMethodName = JSMethodName ?: RCTStringUpToFirstArgument(selectorString);
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}
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// Extract class and method details
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_isClassMethod = [methodName characterAtIndex:0] == '+';
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_moduleClass = NSClassFromString(_moduleClassName);
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_selector = NSSelectorFromString(parts[1]);
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_JSMethodName = JSMethodName ?: [NSStringFromSelector(_selector) componentsSeparatedByString:@":"][0];
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#if DEBUG
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// Sanity check
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RCTAssert([_moduleClass conformsToProtocol:@protocol(RCTBridgeModule)],
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@"You are attempting to export the method %@, but %@ does not \
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@@ -250,15 +282,87 @@ static Class _globalExecutorClass;
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// Process arguments
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NSUInteger numberOfArguments = _methodSignature.numberOfArguments;
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NSMutableArray *argumentBlocks = [[NSMutableArray alloc] initWithCapacity:numberOfArguments - 2];
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for (NSUInteger i = 2; i < numberOfArguments; i++) {
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const char *argumentType = [_methodSignature getArgumentTypeAtIndex:i];
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switch (argumentType[0]) {
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#define RCT_ARG_BLOCK(_logic) \
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[argumentBlocks addObject:^(RCTBridge *bridge, NSInvocation *invocation, NSUInteger index, id json) { \
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_logic \
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[invocation setArgument:&value atIndex:index]; \
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}]; \
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[argumentBlocks addObject:^(RCTBridge *bridge, NSInvocation *invocation, NSUInteger index, id json) { \
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_logic \
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[invocation setArgument:&value atIndex:index]; \
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}]; \
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void (^addBlockArgument)(void) = ^{
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RCT_ARG_BLOCK(
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if (json && ![json isKindOfClass:[NSNumber class]]) {
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RCTLogError(@"Argument %tu (%@) of %@.%@ should be a number", index,
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json, RCTBridgeModuleNameForClass(_moduleClass), _JSMethodName);
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return;
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}
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// Marked as autoreleasing, because NSInvocation doesn't retain arguments
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__autoreleasing id value = (json ? ^(NSArray *args) {
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[bridge _invokeAndProcessModule:@"BatchedBridge"
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method:@"invokeCallbackAndReturnFlushedQueue"
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arguments:@[json, args]];
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} : ^(NSArray *unused) {});
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)
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};
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void (^defaultCase)(const char *) = ^(const char *argumentType) {
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static const char *blockType = @encode(typeof(^{}));
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if (!strcmp(argumentType, blockType)) {
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addBlockArgument();
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} else {
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RCT_ARG_BLOCK( id value = json; )
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}
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};
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for (NSUInteger i = 2; i < numberOfArguments; i++) {
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const char *argumentType = [_methodSignature getArgumentTypeAtIndex:i];
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BOOL useFallback = YES;
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if (argumentNames) {
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NSString *argumentName = argumentNames[i - 2];
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SEL selector = NSSelectorFromString([argumentName stringByAppendingString:@":"]);
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if ([RCTConvert respondsToSelector:selector]) {
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useFallback = NO;
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switch (argumentType[0]) {
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#define RCT_CONVERT_CASE(_value, _type) \
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case _value: { \
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_type (*convert)(id, SEL, id) = (typeof(convert))[RCTConvert methodForSelector:selector]; \
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RCT_ARG_BLOCK( _type value = convert([RCTConvert class], selector, json); ) \
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break; \
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}
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RCT_CONVERT_CASE(':', SEL)
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RCT_CONVERT_CASE('*', const char *)
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RCT_CONVERT_CASE('c', char)
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RCT_CONVERT_CASE('C', unsigned char)
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RCT_CONVERT_CASE('s', short)
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RCT_CONVERT_CASE('S', unsigned short)
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RCT_CONVERT_CASE('i', int)
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RCT_CONVERT_CASE('I', unsigned int)
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RCT_CONVERT_CASE('l', long)
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RCT_CONVERT_CASE('L', unsigned long)
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RCT_CONVERT_CASE('q', long long)
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RCT_CONVERT_CASE('Q', unsigned long long)
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RCT_CONVERT_CASE('f', float)
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RCT_CONVERT_CASE('d', double)
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RCT_CONVERT_CASE('B', BOOL)
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RCT_CONVERT_CASE('@', id)
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RCT_CONVERT_CASE('^', void *)
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default:
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defaultCase(argumentType);
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break;
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}
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} else if ([argumentName isEqualToString:@"RCTResponseSenderBlock"]) {
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addBlockArgument();
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useFallback = NO;
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}
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}
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if (useFallback) {
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switch (argumentType[0]) {
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#define RCT_CASE(_value, _class, _logic) \
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case _value: { \
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@@ -273,61 +377,46 @@ static Class _globalExecutorClass;
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break; \
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}
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RCT_CASE(':', NSString, SEL value = NSSelectorFromString(json); );
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RCT_CASE('*', NSString, const char *value = [json UTF8String]; );
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RCT_CASE(':', NSString, SEL value = NSSelectorFromString(json); )
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RCT_CASE('*', NSString, const char *value = [json UTF8String]; )
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#define RCT_SIMPLE_CASE(_value, _type, _selector) \
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case _value: { \
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RCT_ARG_BLOCK( \
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if (json && ![json respondsToSelector:@selector(_selector)]) { \
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RCTLogError(@"Argument %tu (%@) of %@.%@ does not respond to selector: %@", \
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index, json, RCTBridgeModuleNameForClass(_moduleClass), _JSMethodName, @#_selector); \
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return; \
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} \
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_type value = [json _selector]; \
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) \
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break; \
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}
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RCT_SIMPLE_CASE('c', char, charValue)
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RCT_SIMPLE_CASE('C', unsigned char, unsignedCharValue)
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RCT_SIMPLE_CASE('s', short, shortValue)
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RCT_SIMPLE_CASE('S', unsigned short, unsignedShortValue)
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RCT_SIMPLE_CASE('i', int, intValue)
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RCT_SIMPLE_CASE('I', unsigned int, unsignedIntValue)
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RCT_SIMPLE_CASE('l', long, longValue)
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RCT_SIMPLE_CASE('L', unsigned long, unsignedLongValue)
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RCT_SIMPLE_CASE('q', long long, longLongValue)
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RCT_SIMPLE_CASE('Q', unsigned long long, unsignedLongLongValue)
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RCT_SIMPLE_CASE('f', float, floatValue)
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RCT_SIMPLE_CASE('d', double, doubleValue)
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RCT_SIMPLE_CASE('B', BOOL, boolValue)
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default: {
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static const char *blockType = @encode(typeof(^{}));
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if (!strcmp(argumentType, blockType)) {
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RCT_ARG_BLOCK(
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if (json && ![json isKindOfClass:[NSNumber class]]) {
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RCTLogError(@"Argument %tu (%@) of %@.%@ should be a number", index,
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json, RCTBridgeModuleNameForClass(_moduleClass), _JSMethodName);
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return;
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}
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// Marked as autoreleasing, because NSInvocation doesn't retain arguments
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__autoreleasing id value = (json ? ^(NSArray *args) {
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[bridge _invokeAndProcessModule:@"BatchedBridge"
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method:@"invokeCallbackAndReturnFlushedQueue"
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arguments:@[json, args]];
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} : ^(NSArray *unused) {});
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)
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} else {
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RCT_ARG_BLOCK( id value = json; )
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case _value: { \
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RCT_ARG_BLOCK( \
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if (json && ![json respondsToSelector:@selector(_selector)]) { \
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RCTLogError(@"Argument %tu (%@) of %@.%@ does not respond to selector: %@", \
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index, json, RCTBridgeModuleNameForClass(_moduleClass), _JSMethodName, @#_selector); \
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return; \
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} \
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_type value = [json _selector]; \
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) \
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break; \
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}
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break;
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RCT_SIMPLE_CASE('c', char, charValue)
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RCT_SIMPLE_CASE('C', unsigned char, unsignedCharValue)
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RCT_SIMPLE_CASE('s', short, shortValue)
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RCT_SIMPLE_CASE('S', unsigned short, unsignedShortValue)
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RCT_SIMPLE_CASE('i', int, intValue)
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RCT_SIMPLE_CASE('I', unsigned int, unsignedIntValue)
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RCT_SIMPLE_CASE('l', long, longValue)
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RCT_SIMPLE_CASE('L', unsigned long, unsignedLongValue)
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RCT_SIMPLE_CASE('q', long long, longLongValue)
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RCT_SIMPLE_CASE('Q', unsigned long long, unsignedLongLongValue)
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RCT_SIMPLE_CASE('f', float, floatValue)
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RCT_SIMPLE_CASE('d', double, doubleValue)
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RCT_SIMPLE_CASE('B', BOOL, boolValue)
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default:
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defaultCase(argumentType);
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break;
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}
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}
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}
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_argumentBlocks = [argumentBlocks copy];
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}
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return self;
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}
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@@ -337,7 +426,6 @@ static Class _globalExecutorClass;
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{
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#if DEBUG
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// Sanity check
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RCTAssert([module class] == _moduleClass, @"Attempted to invoke method \
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%@ on a module of class %@", _methodName, [module class]);
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@@ -354,6 +442,7 @@ static Class _globalExecutorClass;
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// Create invocation (we can't re-use this as it wouldn't be thread-safe)
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:_methodSignature];
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[invocation setArgument:&_selector atIndex:1];
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[invocation retainArguments];
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// Set arguments
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NSUInteger index = 0;
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@@ -361,7 +450,7 @@ static Class _globalExecutorClass;
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id arg = (json == [NSNull null]) ? nil : json;
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void (^block)(RCTBridge *, NSInvocation *, NSUInteger, id) = _argumentBlocks[index];
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block(bridge, invocation, index + 2, arg);
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index ++;
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index++;
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}
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// Invoke method
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@@ -768,6 +857,11 @@ static id<RCTJavaScriptExecutor> _latestJSExecutor;
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[_javaScriptExecutor invalidate];
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_javaScriptExecutor = nil;
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// Wait for queued methods to finish
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dispatch_sync(self.shadowQueue, ^{
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// Make sure all dispatchers have been executed before continuing
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});
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// Invalidate modules
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for (id target in _modulesByID.allObjects) {
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if ([target respondsToSelector:@selector(invalidate)]) {
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