| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file or at |
| // https://developers.google.com/open-source/licenses/bsd |
| |
| #import "GPBDescriptor_PackagePrivate.h" |
| |
| #import <objc/runtime.h> |
| |
| #import "GPBMessage_PackagePrivate.h" |
| #import "GPBUtilities_PackagePrivate.h" |
| #import "GPBWireFormat.h" |
| |
| @interface GPBDescriptor () |
| - (instancetype)initWithClass:(Class)messageClass |
| messageName:(NSString *)messageName |
| fileDescription:(GPBFileDescription *)fileDescription |
| fields:(NSArray *)fields |
| storageSize:(uint32_t)storage |
| wireFormat:(BOOL)wireFormat; |
| @end |
| |
| @interface GPBFieldDescriptor () |
| // Single initializer |
| // description has to be long lived, it is held as a raw pointer. |
| - (instancetype)initWithFieldDescription:(void *)description |
| descriptorFlags:(GPBDescriptorInitializationFlags)descriptorFlags; |
| |
| @end |
| |
| @interface GPBEnumDescriptor () |
| - (instancetype)initWithName:(NSString *)name |
| valueNames:(const char *)valueNames |
| values:(const int32_t *)values |
| count:(uint32_t)valueCount |
| enumVerifier:(GPBEnumValidationFunc)enumVerifier |
| flags:(GPBEnumDescriptorInitializationFlags)flags; |
| @end |
| |
| // Direct access is use for speed, to avoid even internally declaring things |
| // read/write, etc. The warning is enabled in the project to ensure code calling |
| // protos can turn on -Wdirect-ivar-access without issues. |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdirect-ivar-access" |
| |
| // The addresses of these variables are used as keys for objc_getAssociatedObject. |
| static const char kTextFormatExtraValueKey = 0; |
| static const char kParentClassValueKey = 0; |
| static const char kClassNameSuffixKey = 0; |
| static const char kFileDescriptorCacheKey = 0; |
| |
| // Utility function to generate selectors on the fly. |
| static SEL SelFromStrings(const char *prefix, const char *middle, const char *suffix, |
| BOOL takesArg) { |
| if (prefix == NULL && suffix == NULL && !takesArg) { |
| return sel_getUid(middle); |
| } |
| const size_t prefixLen = prefix != NULL ? strlen(prefix) : 0; |
| const size_t middleLen = strlen(middle); |
| const size_t suffixLen = suffix != NULL ? strlen(suffix) : 0; |
| size_t totalLen = prefixLen + middleLen + suffixLen + 1; // include space for null on end. |
| if (takesArg) { |
| totalLen += 1; |
| } |
| char buffer[totalLen]; |
| if (prefix != NULL) { |
| memcpy(buffer, prefix, prefixLen); |
| memcpy(buffer + prefixLen, middle, middleLen); |
| buffer[prefixLen] = (char)toupper(buffer[prefixLen]); |
| } else { |
| memcpy(buffer, middle, middleLen); |
| } |
| if (suffix != NULL) { |
| memcpy(buffer + prefixLen + middleLen, suffix, suffixLen); |
| } |
| if (takesArg) { |
| buffer[totalLen - 2] = ':'; |
| } |
| // Always null terminate it. |
| buffer[totalLen - 1] = 0; |
| |
| SEL result = sel_getUid(buffer); |
| return result; |
| } |
| |
| static NSArray *NewFieldsArrayForHasIndex(int hasIndex, NSArray *allMessageFields) |
| __attribute__((ns_returns_retained)); |
| |
| static NSArray *NewFieldsArrayForHasIndex(int hasIndex, NSArray *allMessageFields) { |
| NSMutableArray *result = [[NSMutableArray alloc] init]; |
| for (GPBFieldDescriptor *fieldDesc in allMessageFields) { |
| if (fieldDesc->description_->hasIndex == hasIndex) { |
| [result addObject:fieldDesc]; |
| } |
| } |
| return result; |
| } |
| |
| @implementation GPBDescriptor { |
| Class messageClass_; |
| NSString *messageName_; |
| const GPBFileDescription *fileDescription_; |
| BOOL wireFormat_; |
| } |
| |
| @synthesize messageClass = messageClass_; |
| @synthesize fields = fields_; |
| @synthesize oneofs = oneofs_; |
| @synthesize extensionRanges = extensionRanges_; |
| @synthesize extensionRangesCount = extensionRangesCount_; |
| @synthesize wireFormat = wireFormat_; |
| |
| + (instancetype)allocDescriptorForClass:(Class)messageClass |
| messageName:(NSString *)messageName |
| fileDescription:(GPBFileDescription *)fileDescription |
| fields:(void *)fieldDescriptions |
| fieldCount:(uint32_t)fieldCount |
| storageSize:(uint32_t)storageSize |
| flags:(GPBDescriptorInitializationFlags)flags { |
| // Compute the unknown flags by this version of the runtime and then check the passed in flags |
| // (from the generated code) to detect when sources from a newer version are being used with an |
| // older runtime. |
| GPBDescriptorInitializationFlags unknownFlags = |
| ~(GPBDescriptorInitializationFlag_FieldsWithDefault | |
| GPBDescriptorInitializationFlag_WireFormat | GPBDescriptorInitializationFlag_UsesClassRefs | |
| GPBDescriptorInitializationFlag_Proto3OptionalKnown | |
| GPBDescriptorInitializationFlag_ClosedEnumSupportKnown); |
| if ((flags & unknownFlags) != 0) { |
| GPBRuntimeMatchFailure(); |
| } |
| |
| #if defined(DEBUG) && DEBUG |
| NSAssert((flags & GPBDescriptorInitializationFlag_UsesClassRefs) != 0, |
| @"Internal error: all fields should have class refs"); |
| NSAssert((flags & GPBDescriptorInitializationFlag_Proto3OptionalKnown) != 0, |
| @"Internal error: proto3 optional should be known"); |
| NSAssert((flags & GPBDescriptorInitializationFlag_ClosedEnumSupportKnown) != 0, |
| @"Internal error: close enum should be known"); |
| |
| // `messageName` and `fileDescription` should both be set or both be unset depending on if this is |
| // being called from current code generation or legacy code generation. |
| NSAssert((messageName == nil) == (fileDescription == NULL), |
| @"name and fileDescription should always be provided together"); |
| #endif |
| |
| NSMutableArray *fields = |
| (fieldCount ? [[NSMutableArray alloc] initWithCapacity:fieldCount] : nil); |
| BOOL fieldsIncludeDefault = (flags & GPBDescriptorInitializationFlag_FieldsWithDefault) != 0; |
| |
| void *desc; |
| GPBFieldFlags mergedFieldFlags = GPBFieldNone; |
| for (uint32_t i = 0; i < fieldCount; ++i) { |
| // Need correctly typed pointer for array indexing below to work. |
| if (fieldsIncludeDefault) { |
| desc = &(((GPBMessageFieldDescriptionWithDefault *)fieldDescriptions)[i]); |
| mergedFieldFlags |= |
| (((GPBMessageFieldDescriptionWithDefault *)fieldDescriptions)[i]).core.flags; |
| } else { |
| desc = &(((GPBMessageFieldDescription *)fieldDescriptions)[i]); |
| mergedFieldFlags |= (((GPBMessageFieldDescription *)fieldDescriptions)[i]).flags; |
| } |
| GPBFieldDescriptor *fieldDescriptor = |
| [[GPBFieldDescriptor alloc] initWithFieldDescription:desc descriptorFlags:flags]; |
| [fields addObject:fieldDescriptor]; |
| [fieldDescriptor release]; |
| } |
| // No real value in checking all the fields individually, just check the combined flags at the |
| // end. |
| GPBFieldFlags unknownFieldFlags = |
| ~(GPBFieldRequired | GPBFieldRepeated | GPBFieldPacked | GPBFieldOptional | |
| GPBFieldHasDefaultValue | GPBFieldClearHasIvarOnZero | GPBFieldTextFormatNameCustom | |
| GPBFieldHasEnumDescriptor | GPBFieldMapKeyMask | GPBFieldClosedEnum); |
| if ((mergedFieldFlags & unknownFieldFlags) != 0) { |
| GPBRuntimeMatchFailure(); |
| } |
| |
| BOOL wireFormat = (flags & GPBDescriptorInitializationFlag_WireFormat) != 0; |
| GPBDescriptor *descriptor = [[self alloc] initWithClass:messageClass |
| messageName:messageName |
| fileDescription:fileDescription |
| fields:fields |
| storageSize:storageSize |
| wireFormat:wireFormat]; |
| [fields release]; |
| return descriptor; |
| } |
| |
| + (instancetype)allocDescriptorForClass:(Class)messageClass |
| file:(GPBFileDescriptor *)file |
| fields:(void *)fieldDescriptions |
| fieldCount:(uint32_t)fieldCount |
| storageSize:(uint32_t)storageSize |
| flags:(GPBDescriptorInitializationFlags)flags { |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30006, |
| time_to_remove_this_old_version_shim); |
| |
| BOOL fixClassRefs = (flags & GPBDescriptorInitializationFlag_UsesClassRefs) == 0; |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30003, |
| time_to_remove_non_class_ref_support); |
| |
| BOOL fixProto3Optional = (flags & GPBDescriptorInitializationFlag_Proto3OptionalKnown) == 0; |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30004, |
| time_to_remove_proto3_optional_fallback); |
| |
| BOOL fixClosedEnums = (flags & GPBDescriptorInitializationFlag_ClosedEnumSupportKnown) == 0; |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30005, |
| time_to_remove_closed_enum_fallback); |
| |
| if (fixClassRefs || fixProto3Optional || fixClosedEnums) { |
| BOOL fieldsIncludeDefault = (flags & GPBDescriptorInitializationFlag_FieldsWithDefault) != 0; |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| GPBFileSyntax fileSyntax = file.syntax; |
| #pragma clang diagnostic pop |
| |
| for (uint32_t i = 0; i < fieldCount; ++i) { |
| GPBMessageFieldDescription *coreDesc; |
| if (fieldsIncludeDefault) { |
| coreDesc = &((((GPBMessageFieldDescriptionWithDefault *)fieldDescriptions)[i]).core); |
| } else { |
| coreDesc = &(((GPBMessageFieldDescription *)fieldDescriptions)[i]); |
| } |
| |
| if (fixClassRefs && GPBDataTypeIsMessage(coreDesc->dataType)) { |
| const char *className = coreDesc->dataTypeSpecific.className; |
| Class msgClass = objc_getClass(className); |
| NSAssert(msgClass, @"Class %s not defined", className); |
| coreDesc->dataTypeSpecific.clazz = msgClass; |
| } |
| |
| if (fixProto3Optional) { |
| // If it was... |
| // - proto3 syntax |
| // - not repeated/map |
| // - not in a oneof (negative has index) |
| // - not a message (the flag doesn't make sense for messages) |
| BOOL clearOnZero = ((fileSyntax == GPBFileSyntaxProto3) && |
| ((coreDesc->flags & (GPBFieldRepeated | GPBFieldMapKeyMask)) == 0) && |
| (coreDesc->hasIndex >= 0) && !GPBDataTypeIsMessage(coreDesc->dataType)); |
| if (clearOnZero) { |
| coreDesc->flags |= GPBFieldClearHasIvarOnZero; |
| } |
| } |
| |
| if (fixClosedEnums) { |
| // NOTE: This isn't correct, it is using the syntax of the file that |
| // declared the field, not the syntax of the file that declared the |
| // enum; but for older generated code, that's all we have and that happens |
| // to be what the runtime was doing (even though it was wrong). This is |
| // only wrong in the rare cases an enum is declared in a proto3 syntax |
| // file but used for a field in the proto2 syntax file. |
| BOOL isClosedEnum = |
| (coreDesc->dataType == GPBDataTypeEnum && fileSyntax == GPBFileSyntaxProto2); |
| if (isClosedEnum) { |
| coreDesc->flags |= GPBFieldClosedEnum; |
| } |
| } |
| } |
| flags |= (GPBDescriptorInitializationFlag_UsesClassRefs | |
| GPBDescriptorInitializationFlag_Proto3OptionalKnown | |
| GPBDescriptorInitializationFlag_ClosedEnumSupportKnown); |
| } |
| |
| GPBDescriptor *result = [self allocDescriptorForClass:messageClass |
| messageName:nil |
| fileDescription:NULL |
| fields:fieldDescriptions |
| fieldCount:fieldCount |
| storageSize:storageSize |
| flags:flags]; |
| objc_setAssociatedObject(result, &kFileDescriptorCacheKey, file, |
| OBJC_ASSOCIATION_RETAIN_NONATOMIC); |
| return result; |
| } |
| |
| + (instancetype)allocDescriptorForClass:(Class)messageClass |
| rootClass:(__unused Class)rootClass |
| file:(GPBFileDescriptor *)file |
| fields:(void *)fieldDescriptions |
| fieldCount:(uint32_t)fieldCount |
| storageSize:(uint32_t)storageSize |
| flags:(GPBDescriptorInitializationFlags)flags { |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30006, |
| time_to_remove_this_old_version_shim); |
| // The rootClass is no longer used, but it is passed as [ROOT class] to |
| // ensure it was started up during initialization also when the message |
| // scopes extensions. |
| return [self allocDescriptorForClass:messageClass |
| file:file |
| fields:fieldDescriptions |
| fieldCount:fieldCount |
| storageSize:storageSize |
| flags:flags]; |
| } |
| |
| - (instancetype)initWithClass:(Class)messageClass |
| messageName:(NSString *)messageName |
| fileDescription:(GPBFileDescription *)fileDescription |
| fields:(NSArray *)fields |
| storageSize:(uint32_t)storageSize |
| wireFormat:(BOOL)wireFormat { |
| if ((self = [super init])) { |
| messageClass_ = messageClass; |
| messageName_ = [messageName copy]; |
| fileDescription_ = fileDescription; |
| fields_ = [fields retain]; |
| storageSize_ = storageSize; |
| wireFormat_ = wireFormat; |
| } |
| return self; |
| } |
| |
| - (void)dealloc { |
| [messageName_ release]; |
| [fields_ release]; |
| [oneofs_ release]; |
| [super dealloc]; |
| } |
| |
| // No need to provide -hash/-isEqual: as the instances are singletons and the |
| // default from NSObject is fine. |
| - (instancetype)copyWithZone:(__unused NSZone *)zone { |
| // Immutable. |
| return [self retain]; |
| } |
| |
| - (void)setupOneofs:(const char **)oneofNames |
| count:(uint32_t)count |
| firstHasIndex:(int32_t)firstHasIndex { |
| NSCAssert(firstHasIndex < 0, @"Should always be <0"); |
| NSMutableArray *oneofs = [[NSMutableArray alloc] initWithCapacity:count]; |
| for (uint32_t i = 0, hasIndex = firstHasIndex; i < count; ++i, --hasIndex) { |
| const char *name = oneofNames[i]; |
| NSArray *fieldsForOneof = NewFieldsArrayForHasIndex(hasIndex, fields_); |
| NSCAssert(fieldsForOneof.count > 0, @"No fields for this oneof? (%s:%d)", name, hasIndex); |
| GPBOneofDescriptor *oneofDescriptor = [[GPBOneofDescriptor alloc] initWithName:name |
| fields:fieldsForOneof]; |
| [oneofs addObject:oneofDescriptor]; |
| [oneofDescriptor release]; |
| [fieldsForOneof release]; |
| } |
| oneofs_ = oneofs; |
| } |
| |
| - (void)setupExtraTextInfo:(const char *)extraTextFormatInfo { |
| // Extra info is a compile time option, so skip the work if not needed. |
| if (extraTextFormatInfo) { |
| NSValue *extraInfoValue = [NSValue valueWithPointer:extraTextFormatInfo]; |
| for (GPBFieldDescriptor *fieldDescriptor in fields_) { |
| if (fieldDescriptor->description_->flags & GPBFieldTextFormatNameCustom) { |
| objc_setAssociatedObject(fieldDescriptor, &kTextFormatExtraValueKey, extraInfoValue, |
| OBJC_ASSOCIATION_RETAIN_NONATOMIC); |
| } |
| } |
| } |
| } |
| |
| - (void)setupExtensionRanges:(const GPBExtensionRange *)ranges count:(int32_t)count { |
| extensionRanges_ = ranges; |
| extensionRangesCount_ = count; |
| } |
| |
| - (void)setupContainingMessageClass:(Class)messageClass { |
| objc_setAssociatedObject(self, &kParentClassValueKey, messageClass, OBJC_ASSOCIATION_ASSIGN); |
| } |
| |
| - (void)setupContainingMessageClassName:(const char *)msgClassName { |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30003, |
| time_to_remove_this_old_version_shim); |
| // Note: Only fetch the class here, can't send messages to it because |
| // that could cause cycles back to this class within +initialize if |
| // two messages have each other in fields (i.e. - they build a graph). |
| Class clazz = objc_getClass(msgClassName); |
| NSAssert(clazz, @"Class %s not defined", msgClassName); |
| [self setupContainingMessageClass:clazz]; |
| } |
| |
| - (void)setupMessageClassNameSuffix:(NSString *)suffix { |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30007, |
| time_to_remove_this_old_version_shim); |
| if (suffix.length) { |
| objc_setAssociatedObject(self, &kClassNameSuffixKey, suffix, OBJC_ASSOCIATION_RETAIN_NONATOMIC); |
| } |
| } |
| |
| - (NSString *)name { |
| return NSStringFromClass(messageClass_); |
| } |
| |
| - (GPBFileDescriptor *)file { |
| @synchronized(self) { |
| GPBFileDescriptor *result = objc_getAssociatedObject(self, &kFileDescriptorCacheKey); |
| if (!result) { |
| #if defined(DEBUG) && DEBUG |
| NSAssert(fileDescription_ != NULL, @"Internal error in generation/startup"); |
| #endif |
| // `package` and `prefix` can both be NULL if there wasn't one for the file. |
| NSString *package = fileDescription_->package ? @(fileDescription_->package) : @""; |
| if (fileDescription_->prefix) { |
| result = [[GPBFileDescriptor alloc] initWithPackage:package |
| objcPrefix:@(fileDescription_->prefix) |
| syntax:fileDescription_->syntax]; |
| |
| } else { |
| result = [[GPBFileDescriptor alloc] initWithPackage:package |
| syntax:fileDescription_->syntax]; |
| } |
| objc_setAssociatedObject(result, &kFileDescriptorCacheKey, result, |
| OBJC_ASSOCIATION_RETAIN_NONATOMIC); |
| } |
| return result; |
| } |
| } |
| |
| - (GPBDescriptor *)containingType { |
| Class parentClass = objc_getAssociatedObject(self, &kParentClassValueKey); |
| return [parentClass descriptor]; |
| } |
| |
| - (NSString *)fullName { |
| GPBDescriptor *parent = self.containingType; |
| if (messageName_) { |
| if (parent) { |
| return [NSString stringWithFormat:@"%@.%@", parent.fullName, messageName_]; |
| } |
| if (fileDescription_->package) { |
| return [NSString stringWithFormat:@"%s.%@", fileDescription_->package, messageName_]; |
| } |
| return messageName_; |
| } |
| |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30007, |
| time_to_remove_this_old_approach); |
| // NOTE: When this code path is removed, this also means this api can't return nil any more but |
| // that would be a breaking code change (not longer a Swift optional), so changing that will be |
| // harder. |
| |
| NSString *className = NSStringFromClass(self.messageClass); |
| GPBFileDescriptor *file = self.file; |
| NSString *objcPrefix = file.objcPrefix; |
| if (objcPrefix && ![className hasPrefix:objcPrefix]) { |
| NSAssert(0, @"Class didn't have correct prefix? (%@ - %@)", className, objcPrefix); |
| return nil; |
| } |
| |
| NSString *name = nil; |
| if (parent) { |
| NSString *parentClassName = NSStringFromClass(parent.messageClass); |
| // The generator will add _Class to avoid reserved words, drop it. |
| NSString *suffix = objc_getAssociatedObject(parent, &kClassNameSuffixKey); |
| if (suffix) { |
| if (![parentClassName hasSuffix:suffix]) { |
| NSAssert(0, @"ParentMessage class didn't have correct suffix? (%@ - %@)", className, |
| suffix); |
| return nil; |
| } |
| parentClassName = [parentClassName substringToIndex:(parentClassName.length - suffix.length)]; |
| } |
| NSString *parentPrefix = [parentClassName stringByAppendingString:@"_"]; |
| if (![className hasPrefix:parentPrefix]) { |
| NSAssert(0, @"Class didn't have the correct parent name prefix? (%@ - %@)", parentPrefix, |
| className); |
| return nil; |
| } |
| name = [className substringFromIndex:parentPrefix.length]; |
| } else { |
| name = [className substringFromIndex:objcPrefix.length]; |
| } |
| |
| // The generator will add _Class to avoid reserved words, drop it. |
| NSString *suffix = objc_getAssociatedObject(self, &kClassNameSuffixKey); |
| if (suffix) { |
| if (![name hasSuffix:suffix]) { |
| NSAssert(0, @"Message class didn't have correct suffix? (%@ - %@)", name, suffix); |
| return nil; |
| } |
| name = [name substringToIndex:(name.length - suffix.length)]; |
| } |
| |
| NSString *prefix = (parent != nil ? parent.fullName : file.package); |
| NSString *result; |
| if (prefix.length > 0) { |
| result = [NSString stringWithFormat:@"%@.%@", prefix, name]; |
| } else { |
| result = name; |
| } |
| return result; |
| } |
| |
| - (GPBFieldDescriptor *)fieldWithNumber:(uint32_t)fieldNumber { |
| for (GPBFieldDescriptor *descriptor in fields_) { |
| if (GPBFieldNumber(descriptor) == fieldNumber) { |
| return descriptor; |
| } |
| } |
| return nil; |
| } |
| |
| - (GPBFieldDescriptor *)fieldWithName:(NSString *)name { |
| for (GPBFieldDescriptor *descriptor in fields_) { |
| if ([descriptor.name isEqual:name]) { |
| return descriptor; |
| } |
| } |
| return nil; |
| } |
| |
| - (GPBOneofDescriptor *)oneofWithName:(NSString *)name { |
| for (GPBOneofDescriptor *descriptor in oneofs_) { |
| if ([descriptor.name isEqual:name]) { |
| return descriptor; |
| } |
| } |
| return nil; |
| } |
| |
| @end |
| |
| @implementation GPBFileDescriptor { |
| NSString *package_; |
| NSString *objcPrefix_; |
| GPBFileSyntax syntax_; |
| } |
| |
| @synthesize package = package_; |
| @synthesize objcPrefix = objcPrefix_; |
| @synthesize syntax = syntax_; |
| |
| - (instancetype)initWithPackage:(NSString *)package |
| objcPrefix:(NSString *)objcPrefix |
| syntax:(GPBFileSyntax)syntax { |
| self = [super init]; |
| if (self) { |
| package_ = [package copy]; |
| objcPrefix_ = [objcPrefix copy]; |
| syntax_ = syntax; |
| } |
| return self; |
| } |
| |
| - (instancetype)initWithPackage:(NSString *)package syntax:(GPBFileSyntax)syntax { |
| self = [super init]; |
| if (self) { |
| package_ = [package copy]; |
| syntax_ = syntax; |
| } |
| return self; |
| } |
| |
| - (void)dealloc { |
| [package_ release]; |
| [objcPrefix_ release]; |
| [super dealloc]; |
| } |
| |
| - (BOOL)isEqual:(id)other { |
| if (other == self) { |
| return YES; |
| } |
| if (![other isKindOfClass:[GPBFileDescriptor class]]) { |
| return NO; |
| } |
| GPBFileDescriptor *otherFile = other; |
| // objcPrefix can be nil, otherwise, straight up compare. |
| return (syntax_ == otherFile->syntax_ && [package_ isEqual:otherFile->package_] && |
| (objcPrefix_ == otherFile->objcPrefix_ || |
| (otherFile->objcPrefix_ && [objcPrefix_ isEqual:otherFile->objcPrefix_]))); |
| } |
| |
| - (NSUInteger)hash { |
| // The prefix is recommended to be the same for a given package, so just hash |
| // the package. |
| return [package_ hash]; |
| } |
| |
| - (instancetype)copyWithZone:(__unused NSZone *)zone { |
| // Immutable. |
| return [self retain]; |
| } |
| |
| @end |
| |
| @implementation GPBOneofDescriptor |
| |
| @synthesize fields = fields_; |
| |
| - (instancetype)initWithName:(const char *)name fields:(NSArray *)fields { |
| self = [super init]; |
| if (self) { |
| name_ = name; |
| fields_ = [fields retain]; |
| for (GPBFieldDescriptor *fieldDesc in fields) { |
| fieldDesc->containingOneof_ = self; |
| } |
| |
| caseSel_ = SelFromStrings(NULL, name, "OneOfCase", NO); |
| } |
| return self; |
| } |
| |
| - (void)dealloc { |
| [fields_ release]; |
| [super dealloc]; |
| } |
| |
| // No need to provide -hash/-isEqual: as the instances are singletons and the |
| // default from NSObject is fine. |
| - (instancetype)copyWithZone:(__unused NSZone *)zone { |
| // Immutable. |
| return [self retain]; |
| } |
| |
| - (NSString *)name { |
| return (NSString *_Nonnull)@(name_); |
| } |
| |
| - (GPBFieldDescriptor *)fieldWithNumber:(uint32_t)fieldNumber { |
| for (GPBFieldDescriptor *descriptor in fields_) { |
| if (GPBFieldNumber(descriptor) == fieldNumber) { |
| return descriptor; |
| } |
| } |
| return nil; |
| } |
| |
| - (GPBFieldDescriptor *)fieldWithName:(NSString *)name { |
| for (GPBFieldDescriptor *descriptor in fields_) { |
| if ([descriptor.name isEqual:name]) { |
| return descriptor; |
| } |
| } |
| return nil; |
| } |
| |
| @end |
| |
| uint32_t GPBFieldTag(GPBFieldDescriptor *self) { |
| GPBMessageFieldDescription *description = self->description_; |
| GPBWireFormat format; |
| if ((description->flags & GPBFieldMapKeyMask) != 0) { |
| // Maps are repeated messages on the wire. |
| format = GPBWireFormatForType(GPBDataTypeMessage, NO); |
| } else { |
| format = |
| GPBWireFormatForType(description->dataType, ((description->flags & GPBFieldPacked) != 0)); |
| } |
| return GPBWireFormatMakeTag(description->number, format); |
| } |
| |
| uint32_t GPBFieldAlternateTag(GPBFieldDescriptor *self) { |
| GPBMessageFieldDescription *description = self->description_; |
| NSCAssert((description->flags & GPBFieldRepeated) != 0, @"Only valid on repeated fields"); |
| GPBWireFormat format = |
| GPBWireFormatForType(description->dataType, ((description->flags & GPBFieldPacked) == 0)); |
| return GPBWireFormatMakeTag(description->number, format); |
| } |
| |
| @implementation GPBFieldDescriptor { |
| GPBGenericValue defaultValue_; |
| |
| // Message ivars |
| Class msgClass_; |
| |
| // Enum ivars. |
| GPBEnumDescriptor *enumDescriptor_; |
| } |
| |
| @synthesize msgClass = msgClass_; |
| @synthesize containingOneof = containingOneof_; |
| |
| - (instancetype)initWithFieldDescription:(void *)description |
| descriptorFlags:(GPBDescriptorInitializationFlags)descriptorFlags { |
| if ((self = [super init])) { |
| BOOL includesDefault = |
| (descriptorFlags & GPBDescriptorInitializationFlag_FieldsWithDefault) != 0; |
| GPBMessageFieldDescription *coreDesc; |
| if (includesDefault) { |
| coreDesc = &(((GPBMessageFieldDescriptionWithDefault *)description)->core); |
| } else { |
| coreDesc = description; |
| } |
| description_ = coreDesc; |
| getSel_ = sel_getUid(coreDesc->name); |
| setSel_ = SelFromStrings("set", coreDesc->name, NULL, YES); |
| |
| GPBDataType dataType = coreDesc->dataType; |
| BOOL isMessage = GPBDataTypeIsMessage(dataType); |
| BOOL isMapOrArray = GPBFieldIsMapOrArray(self); |
| |
| if (isMapOrArray) { |
| // map<>/repeated fields get a *Count property (inplace of a has*) to |
| // support checking if there are any entries without triggering |
| // autocreation. |
| hasOrCountSel_ = SelFromStrings(NULL, coreDesc->name, "_Count", NO); |
| } else { |
| // It is a single field; it gets has/setHas selectors if... |
| // - not in a oneof (negative has index) |
| // - not clearing on zero |
| if ((coreDesc->hasIndex >= 0) && ((coreDesc->flags & GPBFieldClearHasIvarOnZero) == 0)) { |
| hasOrCountSel_ = SelFromStrings("has", coreDesc->name, NULL, NO); |
| setHasSel_ = SelFromStrings("setHas", coreDesc->name, NULL, YES); |
| } |
| } |
| |
| // Extra type specific data. |
| if (isMessage) { |
| // Note: Only fetch the class here, can't send messages to it because |
| // that could cause cycles back to this class within +initialize if |
| // two messages have each other in fields (i.e. - they build a graph). |
| msgClass_ = coreDesc->dataTypeSpecific.clazz; |
| } else if (dataType == GPBDataTypeEnum) { |
| enumDescriptor_ = coreDesc->dataTypeSpecific.enumDescFunc(); |
| #if defined(DEBUG) && DEBUG |
| NSAssert((coreDesc->flags & GPBFieldHasEnumDescriptor) != 0, |
| @"Field must have GPBFieldHasEnumDescriptor set"); |
| #endif // DEBUG |
| } |
| |
| // Non map<>/repeated fields can have defaults in proto2 syntax. |
| if (!isMapOrArray && includesDefault) { |
| defaultValue_ = ((GPBMessageFieldDescriptionWithDefault *)description)->defaultValue; |
| if (dataType == GPBDataTypeBytes) { |
| // Data stored as a length prefixed (network byte order) c-string in |
| // descriptor structure. |
| const uint8_t *bytes = (const uint8_t *)defaultValue_.valueData; |
| if (bytes) { |
| uint32_t length; |
| memcpy(&length, bytes, sizeof(length)); |
| length = ntohl(length); |
| bytes += sizeof(length); |
| defaultValue_.valueData = [[NSData alloc] initWithBytes:bytes length:length]; |
| } |
| } |
| } |
| } |
| return self; |
| } |
| |
| - (void)dealloc { |
| if (description_->dataType == GPBDataTypeBytes && !(description_->flags & GPBFieldRepeated)) { |
| [defaultValue_.valueData release]; |
| } |
| [super dealloc]; |
| } |
| |
| // No need to provide -hash/-isEqual: as the instances are singletons and the |
| // default from NSObject is fine. |
| - (instancetype)copyWithZone:(__unused NSZone *)zone { |
| // Immutable. |
| return [self retain]; |
| } |
| |
| - (GPBDataType)dataType { |
| return description_->dataType; |
| } |
| |
| - (BOOL)hasDefaultValue { |
| return (description_->flags & GPBFieldHasDefaultValue) != 0; |
| } |
| |
| - (uint32_t)number { |
| return description_->number; |
| } |
| |
| - (NSString *)name { |
| return (NSString *_Nonnull)@(description_->name); |
| } |
| |
| - (BOOL)isRequired { |
| return (description_->flags & GPBFieldRequired) != 0; |
| } |
| |
| - (BOOL)isOptional { |
| return (description_->flags & GPBFieldOptional) != 0; |
| } |
| |
| - (GPBFieldType)fieldType { |
| GPBFieldFlags flags = description_->flags; |
| if ((flags & GPBFieldRepeated) != 0) { |
| return GPBFieldTypeRepeated; |
| } else if ((flags & GPBFieldMapKeyMask) != 0) { |
| return GPBFieldTypeMap; |
| } else { |
| return GPBFieldTypeSingle; |
| } |
| } |
| |
| - (GPBDataType)mapKeyDataType { |
| switch (description_->flags & GPBFieldMapKeyMask) { |
| case GPBFieldMapKeyInt32: |
| return GPBDataTypeInt32; |
| case GPBFieldMapKeyInt64: |
| return GPBDataTypeInt64; |
| case GPBFieldMapKeyUInt32: |
| return GPBDataTypeUInt32; |
| case GPBFieldMapKeyUInt64: |
| return GPBDataTypeUInt64; |
| case GPBFieldMapKeySInt32: |
| return GPBDataTypeSInt32; |
| case GPBFieldMapKeySInt64: |
| return GPBDataTypeSInt64; |
| case GPBFieldMapKeyFixed32: |
| return GPBDataTypeFixed32; |
| case GPBFieldMapKeyFixed64: |
| return GPBDataTypeFixed64; |
| case GPBFieldMapKeySFixed32: |
| return GPBDataTypeSFixed32; |
| case GPBFieldMapKeySFixed64: |
| return GPBDataTypeSFixed64; |
| case GPBFieldMapKeyBool: |
| return GPBDataTypeBool; |
| case GPBFieldMapKeyString: |
| return GPBDataTypeString; |
| |
| default: |
| NSAssert(0, @"Not a map type"); |
| return GPBDataTypeInt32; // For lack of anything better. |
| } |
| } |
| |
| - (BOOL)isPackable { |
| return (description_->flags & GPBFieldPacked) != 0; |
| } |
| |
| - (BOOL)isValidEnumValue:(int32_t)value { |
| NSAssert(description_->dataType == GPBDataTypeEnum, @"Field Must be of type GPBDataTypeEnum"); |
| return enumDescriptor_.enumVerifier(value); |
| } |
| |
| - (GPBEnumDescriptor *)enumDescriptor { |
| return enumDescriptor_; |
| } |
| |
| - (GPBGenericValue)defaultValue { |
| // Depends on the fact that defaultValue_ is initialized either to "0/nil" or |
| // to an actual defaultValue in our initializer. |
| GPBGenericValue value = defaultValue_; |
| |
| if (!(description_->flags & GPBFieldRepeated)) { |
| // We special handle data and strings. If they are nil, we replace them |
| // with empty string/empty data. |
| GPBDataType type = description_->dataType; |
| if (type == GPBDataTypeBytes && value.valueData == nil) { |
| value.valueData = GPBEmptyNSData(); |
| } else if (type == GPBDataTypeString && value.valueString == nil) { |
| value.valueString = @""; |
| } |
| } |
| return value; |
| } |
| |
| - (NSString *)textFormatName { |
| if ((description_->flags & GPBFieldTextFormatNameCustom) != 0) { |
| NSValue *extraInfoValue = objc_getAssociatedObject(self, &kTextFormatExtraValueKey); |
| // Support can be left out at generation time. |
| if (!extraInfoValue) { |
| return nil; |
| } |
| const uint8_t *extraTextFormatInfo = [extraInfoValue pointerValue]; |
| return GPBDecodeTextFormatName(extraTextFormatInfo, GPBFieldNumber(self), self.name); |
| } |
| |
| // The logic here has to match SetCommonFieldVariables() from |
| // objectivec/field.cc in the proto compiler. |
| NSString *name = self.name; |
| NSUInteger len = [name length]; |
| |
| // Remove the "_p" added to reserved names. |
| if ([name hasSuffix:@"_p"]) { |
| name = [name substringToIndex:(len - 2)]; |
| len = [name length]; |
| } |
| |
| // Remove "Array" from the end for repeated fields. |
| if (((description_->flags & GPBFieldRepeated) != 0) && [name hasSuffix:@"Array"]) { |
| name = [name substringToIndex:(len - 5)]; |
| len = [name length]; |
| } |
| |
| // Groups vs. other fields. |
| if (description_->dataType == GPBDataTypeGroup) { |
| // Just capitalize the first letter. |
| unichar firstChar = [name characterAtIndex:0]; |
| if (firstChar >= 'a' && firstChar <= 'z') { |
| NSString *firstCharString = |
| [NSString stringWithFormat:@"%C", (unichar)(firstChar - 'a' + 'A')]; |
| NSString *result = [name stringByReplacingCharactersInRange:NSMakeRange(0, 1) |
| withString:firstCharString]; |
| return result; |
| } |
| return name; |
| |
| } else { |
| // Undo the CamelCase. |
| NSMutableString *result = [NSMutableString stringWithCapacity:len]; |
| for (uint32_t i = 0; i < len; i++) { |
| unichar c = [name characterAtIndex:i]; |
| if (c >= 'A' && c <= 'Z') { |
| if (i > 0) { |
| [result appendFormat:@"_%C", (unichar)(c - 'A' + 'a')]; |
| } else { |
| [result appendFormat:@"%C", c]; |
| } |
| } else { |
| [result appendFormat:@"%C", c]; |
| } |
| } |
| return result; |
| } |
| } |
| |
| @end |
| |
| @implementation GPBEnumDescriptor { |
| NSString *name_; |
| // valueNames_ is a single c string with all of the value names appended |
| // together, each null terminated. -calcValueNameOffsets fills in |
| // nameOffsets_ with the offsets to allow quicker access to the individual |
| // names. |
| const char *valueNames_; |
| const int32_t *values_; |
| GPBEnumValidationFunc enumVerifier_; |
| const uint8_t *extraTextFormatInfo_; |
| uint32_t *nameOffsets_; |
| uint32_t valueCount_; |
| uint32_t flags_; |
| } |
| |
| @synthesize name = name_; |
| @synthesize enumVerifier = enumVerifier_; |
| |
| + (instancetype)allocDescriptorForName:(NSString *)name |
| valueNames:(const char *)valueNames |
| values:(const int32_t *)values |
| count:(uint32_t)valueCount |
| enumVerifier:(GPBEnumValidationFunc)enumVerifier |
| flags:(GPBEnumDescriptorInitializationFlags)flags { |
| // Compute the unknown flags by this version of the runtime and then check the passed in flags |
| // (from the generated code) to detect when sources from a newer version are being used with an |
| // older runtime. |
| GPBEnumDescriptorInitializationFlags unknownFlags = |
| ~(GPBEnumDescriptorInitializationFlag_IsClosed); |
| if ((flags & unknownFlags) != 0) { |
| GPBRuntimeMatchFailure(); |
| } |
| GPBEnumDescriptor *descriptor = [[self alloc] initWithName:name |
| valueNames:valueNames |
| values:values |
| count:valueCount |
| enumVerifier:enumVerifier |
| flags:flags]; |
| return descriptor; |
| } |
| |
| + (instancetype)allocDescriptorForName:(NSString *)name |
| valueNames:(const char *)valueNames |
| values:(const int32_t *)values |
| count:(uint32_t)valueCount |
| enumVerifier:(GPBEnumValidationFunc)enumVerifier |
| flags:(GPBEnumDescriptorInitializationFlags)flags |
| extraTextFormatInfo:(const char *)extraTextFormatInfo { |
| // Call the common case. |
| GPBEnumDescriptor *descriptor = [self allocDescriptorForName:name |
| valueNames:valueNames |
| values:values |
| count:valueCount |
| enumVerifier:enumVerifier |
| flags:flags]; |
| // Set the extra info. |
| descriptor->extraTextFormatInfo_ = (const uint8_t *)extraTextFormatInfo; |
| return descriptor; |
| } |
| |
| + (instancetype)allocDescriptorForName:(NSString *)name |
| valueNames:(const char *)valueNames |
| values:(const int32_t *)values |
| count:(uint32_t)valueCount |
| enumVerifier:(GPBEnumValidationFunc)enumVerifier { |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30005, |
| time_to_remove_this_old_version_shim); |
| return [self allocDescriptorForName:name |
| valueNames:valueNames |
| values:values |
| count:valueCount |
| enumVerifier:enumVerifier |
| flags:GPBEnumDescriptorInitializationFlag_None]; |
| } |
| |
| + (instancetype)allocDescriptorForName:(NSString *)name |
| valueNames:(const char *)valueNames |
| values:(const int32_t *)values |
| count:(uint32_t)valueCount |
| enumVerifier:(GPBEnumValidationFunc)enumVerifier |
| extraTextFormatInfo:(const char *)extraTextFormatInfo { |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30005, |
| time_to_remove_this_old_version_shim); |
| return [self allocDescriptorForName:name |
| valueNames:valueNames |
| values:values |
| count:valueCount |
| enumVerifier:enumVerifier |
| flags:GPBEnumDescriptorInitializationFlag_None |
| extraTextFormatInfo:extraTextFormatInfo]; |
| } |
| |
| - (instancetype)initWithName:(NSString *)name |
| valueNames:(const char *)valueNames |
| values:(const int32_t *)values |
| count:(uint32_t)valueCount |
| enumVerifier:(GPBEnumValidationFunc)enumVerifier |
| flags:(GPBEnumDescriptorInitializationFlags)flags { |
| if ((self = [super init])) { |
| name_ = [name copy]; |
| valueNames_ = valueNames; |
| values_ = values; |
| valueCount_ = valueCount; |
| enumVerifier_ = enumVerifier; |
| flags_ = flags; |
| } |
| return self; |
| } |
| |
| - (void)dealloc { |
| [name_ release]; |
| if (nameOffsets_) free(nameOffsets_); |
| [super dealloc]; |
| } |
| |
| // No need to provide -hash/-isEqual: as the instances are singletons and the |
| // default from NSObject is fine. |
| - (instancetype)copyWithZone:(__unused NSZone *)zone { |
| // Immutable. |
| return [self retain]; |
| } |
| |
| - (BOOL)isClosed { |
| return (flags_ & GPBEnumDescriptorInitializationFlag_IsClosed) != 0; |
| } |
| |
| - (void)calcValueNameOffsets { |
| @synchronized(self) { |
| if (nameOffsets_ != NULL) { |
| return; |
| } |
| uint32_t *offsets = malloc(valueCount_ * sizeof(uint32_t)); |
| if (!offsets) return; |
| const char *scan = valueNames_; |
| for (uint32_t i = 0; i < valueCount_; ++i) { |
| offsets[i] = (uint32_t)(scan - valueNames_); |
| while (*scan != '\0') ++scan; |
| ++scan; // Step over the null. |
| } |
| nameOffsets_ = offsets; |
| } |
| } |
| |
| - (NSString *)enumNameForValue:(int32_t)number { |
| for (uint32_t i = 0; i < valueCount_; ++i) { |
| if (values_[i] == number) { |
| return [self getEnumNameForIndex:i]; |
| } |
| } |
| return nil; |
| } |
| |
| - (BOOL)getValue:(int32_t *)outValue forEnumName:(NSString *)name { |
| // Must have the prefix. |
| NSUInteger prefixLen = name_.length + 1; |
| if ((name.length <= prefixLen) || ![name hasPrefix:name_] || |
| ([name characterAtIndex:prefixLen - 1] != '_')) { |
| return NO; |
| } |
| |
| // Skip over the prefix. |
| const char *nameAsCStr = [name UTF8String]; |
| nameAsCStr += prefixLen; |
| |
| [self calcValueNameOffsets]; |
| if (nameOffsets_ == NULL) return NO; |
| |
| // Find it. |
| for (uint32_t i = 0; i < valueCount_; ++i) { |
| const char *valueName = valueNames_ + nameOffsets_[i]; |
| if (strcmp(nameAsCStr, valueName) == 0) { |
| if (outValue) { |
| *outValue = values_[i]; |
| } |
| return YES; |
| } |
| } |
| return NO; |
| } |
| |
| - (BOOL)getValue:(int32_t *)outValue forEnumTextFormatName:(NSString *)textFormatName { |
| [self calcValueNameOffsets]; |
| if (nameOffsets_ == NULL) return NO; |
| |
| for (uint32_t i = 0; i < valueCount_; ++i) { |
| NSString *valueTextFormatName = [self getEnumTextFormatNameForIndex:i]; |
| if ([valueTextFormatName isEqual:textFormatName]) { |
| if (outValue) { |
| *outValue = values_[i]; |
| } |
| return YES; |
| } |
| } |
| return NO; |
| } |
| |
| - (NSString *)textFormatNameForValue:(int32_t)number { |
| // Find the EnumValue descriptor and its index. |
| BOOL foundIt = NO; |
| uint32_t valueDescriptorIndex; |
| for (valueDescriptorIndex = 0; valueDescriptorIndex < valueCount_; ++valueDescriptorIndex) { |
| if (values_[valueDescriptorIndex] == number) { |
| foundIt = YES; |
| break; |
| } |
| } |
| |
| if (!foundIt) { |
| return nil; |
| } |
| return [self getEnumTextFormatNameForIndex:valueDescriptorIndex]; |
| } |
| |
| - (uint32_t)enumNameCount { |
| return valueCount_; |
| } |
| |
| - (NSString *)getEnumNameForIndex:(uint32_t)index { |
| [self calcValueNameOffsets]; |
| if (nameOffsets_ == NULL) return nil; |
| |
| if (index >= valueCount_) { |
| return nil; |
| } |
| const char *valueName = valueNames_ + nameOffsets_[index]; |
| NSString *fullName = [NSString stringWithFormat:@"%@_%s", name_, valueName]; |
| return fullName; |
| } |
| |
| - (NSString *)getEnumTextFormatNameForIndex:(uint32_t)index { |
| [self calcValueNameOffsets]; |
| if (nameOffsets_ == NULL) return nil; |
| |
| if (index >= valueCount_) { |
| return nil; |
| } |
| NSString *result = nil; |
| // Naming adds an underscore between enum name and value name, skip that also. |
| const char *valueName = valueNames_ + nameOffsets_[index]; |
| NSString *shortName = @(valueName); |
| |
| // See if it is in the map of special format handling. |
| if (extraTextFormatInfo_) { |
| result = GPBDecodeTextFormatName(extraTextFormatInfo_, (int32_t)index, shortName); |
| } |
| // Logic here needs to match what objectivec/enum.cc does in the proto |
| // compiler. |
| if (result == nil) { |
| NSUInteger len = [shortName length]; |
| NSMutableString *worker = [NSMutableString stringWithCapacity:len]; |
| for (NSUInteger i = 0; i < len; i++) { |
| unichar c = [shortName characterAtIndex:i]; |
| if (i > 0 && c >= 'A' && c <= 'Z') { |
| [worker appendString:@"_"]; |
| } |
| [worker appendFormat:@"%c", toupper((char)c)]; |
| } |
| result = worker; |
| } |
| return result; |
| } |
| |
| @end |
| |
| @implementation GPBExtensionDescriptor { |
| GPBGenericValue defaultValue_; |
| } |
| |
| - (instancetype)initWithExtensionDescription:(GPBExtensionDescription *)desc |
| usesClassRefs:(BOOL)usesClassRefs { |
| // Compute the unknown options by this version of the runtime and then check the passed in |
| // descriptor's options (from the generated code) to detect when sources from a newer version are |
| // being used with an older runtime. |
| GPBExtensionOptions unknownOptions = |
| ~(GPBExtensionRepeated | GPBExtensionPacked | GPBExtensionSetWireFormat); |
| if ((desc->options & unknownOptions) != 0) { |
| GPBRuntimeMatchFailure(); |
| } |
| |
| #if defined(DEBUG) && DEBUG |
| NSAssert(usesClassRefs, @"Internal error: all extensions should have class refs"); |
| #endif |
| |
| if ((self = [super init])) { |
| description_ = desc; |
| |
| GPBDataType type = description_->dataType; |
| if (type == GPBDataTypeBytes) { |
| // Data stored as a length prefixed c-string in descriptor records. |
| const uint8_t *bytes = (const uint8_t *)description_->defaultValue.valueData; |
| if (bytes) { |
| uint32_t length; |
| memcpy(&length, bytes, sizeof(length)); |
| // The length is stored in network byte order. |
| length = ntohl(length); |
| bytes += sizeof(length); |
| defaultValue_.valueData = [[NSData alloc] initWithBytes:bytes length:length]; |
| } |
| } else if (type == GPBDataTypeMessage || type == GPBDataTypeGroup) { |
| // The default is looked up in -defaultValue instead since extensions |
| // aren't common, we avoid the hit startup hit and it avoids initialization |
| // order issues. |
| } else { |
| defaultValue_ = description_->defaultValue; |
| } |
| } |
| return self; |
| } |
| |
| - (instancetype)initWithExtensionDescription:(GPBExtensionDescription *)desc { |
| GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION <= 30003, |
| time_to_remove_this_old_version_shim); |
| |
| const char *className = desc->messageOrGroupClass.name; |
| if (className) { |
| Class clazz = objc_lookUpClass(className); |
| NSAssert(clazz != Nil, @"Class %s not defined", className); |
| desc->messageOrGroupClass.clazz = clazz; |
| } |
| |
| const char *extendedClassName = desc->extendedClass.name; |
| if (extendedClassName) { |
| Class clazz = objc_lookUpClass(extendedClassName); |
| NSAssert(clazz, @"Class %s not defined", extendedClassName); |
| desc->extendedClass.clazz = clazz; |
| } |
| |
| return [self initWithExtensionDescription:desc usesClassRefs:YES]; |
| } |
| |
| - (void)dealloc { |
| if ((description_->dataType == GPBDataTypeBytes) && !GPBExtensionIsRepeated(description_)) { |
| [defaultValue_.valueData release]; |
| } |
| [super dealloc]; |
| } |
| |
| // No need to provide -hash/-isEqual: as the instances are singletons and the |
| // default from NSObject is fine. |
| - (instancetype)copyWithZone:(__unused NSZone *)zone { |
| // Immutable. |
| return [self retain]; |
| } |
| |
| - (NSString *)singletonName { |
| return (NSString *_Nonnull)@(description_->singletonName); |
| } |
| |
| - (const char *)singletonNameC { |
| return description_->singletonName; |
| } |
| |
| - (uint32_t)fieldNumber { |
| return description_->fieldNumber; |
| } |
| |
| - (GPBDataType)dataType { |
| return description_->dataType; |
| } |
| |
| - (GPBWireFormat)wireType { |
| return GPBWireFormatForType(description_->dataType, GPBExtensionIsPacked(description_)); |
| } |
| |
| - (GPBWireFormat)alternateWireType { |
| NSAssert(GPBExtensionIsRepeated(description_), @"Only valid on repeated extensions"); |
| return GPBWireFormatForType(description_->dataType, !GPBExtensionIsPacked(description_)); |
| } |
| |
| - (BOOL)isRepeated { |
| return GPBExtensionIsRepeated(description_); |
| } |
| |
| - (BOOL)isPackable { |
| return GPBExtensionIsPacked(description_); |
| } |
| |
| - (Class)msgClass { |
| return description_->messageOrGroupClass.clazz; |
| } |
| |
| - (Class)containingMessageClass { |
| return description_->extendedClass.clazz; |
| } |
| |
| - (GPBEnumDescriptor *)enumDescriptor { |
| if (description_->dataType == GPBDataTypeEnum) { |
| GPBEnumDescriptor *enumDescriptor = description_->enumDescriptorFunc(); |
| return enumDescriptor; |
| } |
| return nil; |
| } |
| |
| - (id)defaultValue { |
| if (GPBExtensionIsRepeated(description_)) { |
| return nil; |
| } |
| |
| switch (description_->dataType) { |
| case GPBDataTypeBool: |
| return @(defaultValue_.valueBool); |
| case GPBDataTypeFloat: |
| return @(defaultValue_.valueFloat); |
| case GPBDataTypeDouble: |
| return @(defaultValue_.valueDouble); |
| case GPBDataTypeInt32: |
| case GPBDataTypeSInt32: |
| case GPBDataTypeEnum: |
| case GPBDataTypeSFixed32: |
| return @(defaultValue_.valueInt32); |
| case GPBDataTypeInt64: |
| case GPBDataTypeSInt64: |
| case GPBDataTypeSFixed64: |
| return @(defaultValue_.valueInt64); |
| case GPBDataTypeUInt32: |
| case GPBDataTypeFixed32: |
| return @(defaultValue_.valueUInt32); |
| case GPBDataTypeUInt64: |
| case GPBDataTypeFixed64: |
| return @(defaultValue_.valueUInt64); |
| case GPBDataTypeBytes: |
| // Like message fields, the default is zero length data. |
| return (defaultValue_.valueData ? defaultValue_.valueData : GPBEmptyNSData()); |
| case GPBDataTypeString: |
| // Like message fields, the default is zero length string. |
| return (defaultValue_.valueString ? defaultValue_.valueString : @""); |
| case GPBDataTypeGroup: |
| case GPBDataTypeMessage: |
| return nil; |
| } |
| } |
| |
| - (NSComparisonResult)compareByFieldNumber:(GPBExtensionDescriptor *)other { |
| int32_t selfNumber = description_->fieldNumber; |
| int32_t otherNumber = other->description_->fieldNumber; |
| if (selfNumber < otherNumber) { |
| return NSOrderedAscending; |
| } else if (selfNumber == otherNumber) { |
| return NSOrderedSame; |
| } else { |
| return NSOrderedDescending; |
| } |
| } |
| |
| @end |
| |
| #pragma clang diagnostic pop |
