| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #import "GPBDescriptor_PackagePrivate.h" |
| |
| #import <objc/runtime.h> |
| |
| #import "GPBUtilities_PackagePrivate.h" |
| #import "GPBWireFormat.h" |
| #import "GPBMessage_PackagePrivate.h" |
| |
| // 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 kParentClassNameValueKey = 0; |
| static const char kClassNameSuffixKey = 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_; |
| GPBFileDescriptor *file_; |
| BOOL wireFormat_; |
| } |
| |
| @synthesize messageClass = messageClass_; |
| @synthesize fields = fields_; |
| @synthesize oneofs = oneofs_; |
| @synthesize extensionRanges = extensionRanges_; |
| @synthesize extensionRangesCount = extensionRangesCount_; |
| @synthesize file = file_; |
| @synthesize wireFormat = wireFormat_; |
| |
| + (instancetype) |
| allocDescriptorForClass:(Class)messageClass |
| rootClass:(Class)rootClass |
| file:(GPBFileDescriptor *)file |
| fields:(void *)fieldDescriptions |
| fieldCount:(uint32_t)fieldCount |
| storageSize:(uint32_t)storageSize |
| flags:(GPBDescriptorInitializationFlags)flags { |
| // The rootClass is no longer used, but it is passed in to ensure it |
| // was started up during initialization also. |
| (void)rootClass; |
| NSMutableArray *fields = nil; |
| GPBFileSyntax syntax = file.syntax; |
| BOOL fieldsIncludeDefault = |
| (flags & GPBDescriptorInitializationFlag_FieldsWithDefault) != 0; |
| |
| void *desc; |
| for (uint32_t i = 0; i < fieldCount; ++i) { |
| if (fields == nil) { |
| fields = [[NSMutableArray alloc] initWithCapacity:fieldCount]; |
| } |
| // Need correctly typed pointer for array indexing below to work. |
| if (fieldsIncludeDefault) { |
| GPBMessageFieldDescriptionWithDefault *fieldDescWithDefault = fieldDescriptions; |
| desc = &(fieldDescWithDefault[i]); |
| } else { |
| GPBMessageFieldDescription *fieldDesc = fieldDescriptions; |
| desc = &(fieldDesc[i]); |
| } |
| GPBFieldDescriptor *fieldDescriptor = |
| [[GPBFieldDescriptor alloc] initWithFieldDescription:desc |
| includesDefault:fieldsIncludeDefault |
| syntax:syntax]; |
| [fields addObject:fieldDescriptor]; |
| [fieldDescriptor release]; |
| } |
| |
| BOOL wireFormat = (flags & GPBDescriptorInitializationFlag_WireFormat) != 0; |
| GPBDescriptor *descriptor = [[self alloc] initWithClass:messageClass |
| file:file |
| fields:fields |
| storageSize:storageSize |
| wireFormat:wireFormat]; |
| [fields release]; |
| return descriptor; |
| } |
| |
| - (instancetype)initWithClass:(Class)messageClass |
| file:(GPBFileDescriptor *)file |
| fields:(NSArray *)fields |
| storageSize:(uint32_t)storageSize |
| wireFormat:(BOOL)wireFormat { |
| if ((self = [super init])) { |
| messageClass_ = messageClass; |
| file_ = file; |
| fields_ = [fields retain]; |
| storageSize_ = storageSize; |
| wireFormat_ = wireFormat; |
| } |
| return self; |
| } |
| |
| - (void)dealloc { |
| [fields_ release]; |
| [oneofs_ release]; |
| [super dealloc]; |
| } |
| |
| - (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)setupContainingMessageClassName:(const char *)msgClassName { |
| // 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). |
| NSAssert(objc_getClass(msgClassName), @"Class %s not defined", msgClassName); |
| NSValue *parentNameValue = [NSValue valueWithPointer:msgClassName]; |
| objc_setAssociatedObject(self, &kParentClassNameValueKey, |
| parentNameValue, |
| OBJC_ASSOCIATION_RETAIN_NONATOMIC); |
| } |
| |
| - (void)setupMessageClassNameSuffix:(NSString *)suffix { |
| if (suffix.length) { |
| objc_setAssociatedObject(self, &kClassNameSuffixKey, |
| suffix, |
| OBJC_ASSOCIATION_RETAIN_NONATOMIC); |
| } |
| } |
| |
| - (NSString *)name { |
| return NSStringFromClass(messageClass_); |
| } |
| |
| - (GPBDescriptor *)containingType { |
| NSValue *parentNameValue = |
| objc_getAssociatedObject(self, &kParentClassNameValueKey); |
| if (!parentNameValue) { |
| return nil; |
| } |
| const char *parentName = [parentNameValue pointerValue]; |
| Class parentClass = objc_getClass(parentName); |
| NSAssert(parentClass, @"Class %s not defined", parentName); |
| return [parentClass descriptor]; |
| } |
| |
| - (NSString *)fullName { |
| 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; |
| } |
| GPBDescriptor *parent = self.containingType; |
| |
| 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; |
| } |
| |
| - (id)copyWithZone:(NSZone *)zone { |
| #pragma unused(zone) |
| return [self retain]; |
| } |
| |
| - (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]; |
| } |
| |
| @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]; |
| } |
| |
| - (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. |
| // If protos are generated with GenerateEnumDescriptors on then it will |
| // be a enumDescriptor, otherwise it will be a enumVerifier. |
| union { |
| GPBEnumDescriptor *enumDescriptor_; |
| GPBEnumValidationFunc enumVerifier_; |
| } enumHandling_; |
| } |
| |
| @synthesize msgClass = msgClass_; |
| @synthesize containingOneof = containingOneof_; |
| |
| - (instancetype)init { |
| // Throw an exception if people attempt to not use the designated initializer. |
| self = [super init]; |
| if (self != nil) { |
| [self doesNotRecognizeSelector:_cmd]; |
| self = nil; |
| } |
| return self; |
| } |
| |
| - (instancetype)initWithFieldDescription:(void *)description |
| includesDefault:(BOOL)includesDefault |
| syntax:(GPBFileSyntax)syntax { |
| if ((self = [super init])) { |
| 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 { |
| // If there is a positive hasIndex, then: |
| // - All fields types for proto2 messages get has* selectors. |
| // - Only message fields for proto3 messages get has* selectors. |
| // Note: the positive check is to handle oneOfs, we can't check |
| // containingOneof_ because it isn't set until after initialization. |
| if ((coreDesc->hasIndex >= 0) && |
| (coreDesc->hasIndex != GPBNoHasBit) && |
| ((syntax != GPBFileSyntaxProto3) || isMessage)) { |
| hasOrCountSel_ = SelFromStrings("has", coreDesc->name, NULL, NO); |
| setHasSel_ = SelFromStrings("setHas", coreDesc->name, NULL, YES); |
| } |
| } |
| |
| // Extra type specific data. |
| if (isMessage) { |
| const char *className = coreDesc->dataTypeSpecific.className; |
| // 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_ = objc_getClass(className); |
| NSAssert(msgClass_, @"Class %s not defined", className); |
| } else if (dataType == GPBDataTypeEnum) { |
| if ((coreDesc->flags & GPBFieldHasEnumDescriptor) != 0) { |
| enumHandling_.enumDescriptor_ = |
| coreDesc->dataTypeSpecific.enumDescFunc(); |
| } else { |
| enumHandling_.enumVerifier_ = |
| coreDesc->dataTypeSpecific.enumVerifier; |
| } |
| } |
| |
| // 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]; |
| } |
| |
| - (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"); |
| if (description_->flags & GPBFieldHasEnumDescriptor) { |
| return enumHandling_.enumDescriptor_.enumVerifier(value); |
| } else { |
| return enumHandling_.enumVerifier_(value); |
| } |
| } |
| |
| - (GPBEnumDescriptor *)enumDescriptor { |
| if (description_->flags & GPBFieldHasEnumDescriptor) { |
| return enumHandling_.enumDescriptor_; |
| } else { |
| return nil; |
| } |
| } |
| |
| - (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_; |
| } |
| |
| @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 { |
| GPBEnumDescriptor *descriptor = [[self alloc] initWithName:name |
| valueNames:valueNames |
| values:values |
| count:valueCount |
| enumVerifier:enumVerifier]; |
| return descriptor; |
| } |
| |
| + (instancetype) |
| allocDescriptorForName:(NSString *)name |
| valueNames:(const char *)valueNames |
| values:(const int32_t *)values |
| count:(uint32_t)valueCount |
| enumVerifier:(GPBEnumValidationFunc)enumVerifier |
| extraTextFormatInfo:(const char *)extraTextFormatInfo { |
| // Call the common case. |
| GPBEnumDescriptor *descriptor = [self allocDescriptorForName:name |
| valueNames:valueNames |
| values:values |
| count:valueCount |
| enumVerifier:enumVerifier]; |
| // Set the extra info. |
| descriptor->extraTextFormatInfo_ = (const uint8_t *)extraTextFormatInfo; |
| return descriptor; |
| } |
| |
| - (instancetype)initWithName:(NSString *)name |
| valueNames:(const char *)valueNames |
| values:(const int32_t *)values |
| count:(uint32_t)valueCount |
| enumVerifier:(GPBEnumValidationFunc)enumVerifier { |
| if ((self = [super init])) { |
| name_ = [name copy]; |
| valueNames_ = valueNames; |
| values_ = values; |
| valueCount_ = valueCount; |
| enumVerifier_ = enumVerifier; |
| } |
| return self; |
| } |
| |
| - (void)dealloc { |
| [name_ release]; |
| if (nameOffsets_) free(nameOffsets_); |
| [super dealloc]; |
| } |
| |
| - (void)calcValueNameOffsets { |
| @synchronized(self) { |
| if (nameOffsets_ != NULL) { |
| return; |
| } |
| uint32_t *offsets = malloc(valueCount_ * sizeof(uint32_t)); |
| 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 { |
| if (nameOffsets_ == NULL) [self calcValueNameOffsets]; |
| |
| for (uint32_t i = 0; i < valueCount_; ++i) { |
| if (values_[i] == number) { |
| const char *valueName = valueNames_ + nameOffsets_[i]; |
| NSString *fullName = [NSString stringWithFormat:@"%@_%s", name_, valueName]; |
| return fullName; |
| } |
| } |
| 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; |
| |
| if (nameOffsets_ == NULL) [self calcValueNameOffsets]; |
| |
| // 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 { |
| if (nameOffsets_ == NULL) [self calcValueNameOffsets]; |
| |
| for (uint32_t i = 0; i < valueCount_; ++i) { |
| int32_t value = values_[i]; |
| NSString *valueTextFormatName = [self textFormatNameForValue:value]; |
| if ([valueTextFormatName isEqual:textFormatName]) { |
| if (outValue) { |
| *outValue = value; |
| } |
| return YES; |
| } |
| } |
| return NO; |
| } |
| |
| - (NSString *)textFormatNameForValue:(int32_t)number { |
| if (nameOffsets_ == NULL) [self calcValueNameOffsets]; |
| |
| // 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; |
| } |
| |
| NSString *result = nil; |
| // Naming adds an underscore between enum name and value name, skip that also. |
| const char *valueName = valueNames_ + nameOffsets_[valueDescriptorIndex]; |
| NSString *shortName = @(valueName); |
| |
| // See if it is in the map of special format handling. |
| if (extraTextFormatInfo_) { |
| result = GPBDecodeTextFormatName(extraTextFormatInfo_, |
| (int32_t)valueDescriptorIndex, 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_; |
| } |
| |
| @synthesize containingMessageClass = containingMessageClass_; |
| |
| - (instancetype)initWithExtensionDescription: |
| (GPBExtensionDescription *)description { |
| if ((self = [super init])) { |
| description_ = description; |
| |
| #if defined(DEBUG) && DEBUG |
| const char *className = description->messageOrGroupClassName; |
| if (className) { |
| NSAssert(objc_lookUpClass(className) != Nil, |
| @"Class %s not defined", className); |
| } |
| #endif |
| |
| if (description->extendedClass) { |
| Class containingClass = objc_lookUpClass(description->extendedClass); |
| NSAssert(containingClass, @"Class %s not defined", |
| description->extendedClass); |
| containingMessageClass_ = containingClass; |
| } |
| |
| 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 avoid initialization |
| // order issues. |
| } else { |
| defaultValue_ = description->defaultValue; |
| } |
| } |
| return self; |
| } |
| |
| - (void)dealloc { |
| if ((description_->dataType == GPBDataTypeBytes) && |
| !GPBExtensionIsRepeated(description_)) { |
| [defaultValue_.valueData release]; |
| } |
| [super dealloc]; |
| } |
| |
| - (instancetype)copyWithZone:(NSZone *)zone { |
| #pragma unused(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 objc_getClass(description_->messageOrGroupClassName); |
| } |
| |
| - (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 |
