Alpha 1 drop of Google's Objective C plugin and runtime support for protobufs.
diff --git a/objectivec/GPBDescriptor.m b/objectivec/GPBDescriptor.m
new file mode 100644
index 0000000..6730d53
--- /dev/null
+++ b/objectivec/GPBDescriptor.m
@@ -0,0 +1,888 @@
+// 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"
+#import "google/protobuf/Descriptor.pbobjc.h"
+
+// The address of this variable is used as a key for obj_getAssociatedObject.
+static const char kTextFormatExtraValueKey = 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_;
+ NSArray *enums_;
+ NSArray *extensions_;
+ GPBFileDescriptor *file_;
+ BOOL wireFormat_;
+}
+
+@synthesize messageClass = messageClass_;
+@synthesize fields = fields_;
+@synthesize oneofs = oneofs_;
+@synthesize enums = enums_;
+@synthesize extensions = extensions_;
+@synthesize extensionRanges = extensionRanges_;
+@synthesize extensionRangesCount = extensionRangesCount_;
+@synthesize file = file_;
+@synthesize wireFormat = wireFormat_;
+
++ (instancetype)
+ allocDescriptorForClass:(Class)messageClass
+ rootClass:(Class)rootClass
+ file:(GPBFileDescriptor *)file
+ fields:(GPBMessageFieldDescription *)fieldDescriptions
+ fieldCount:(NSUInteger)fieldCount
+ oneofs:(GPBMessageOneofDescription *)oneofDescriptions
+ oneofCount:(NSUInteger)oneofCount
+ enums:(GPBMessageEnumDescription *)enumDescriptions
+ enumCount:(NSUInteger)enumCount
+ ranges:(const GPBExtensionRange *)ranges
+ rangeCount:(NSUInteger)rangeCount
+ storageSize:(size_t)storageSize
+ wireFormat:(BOOL)wireFormat {
+ NSMutableArray *fields = nil;
+ NSMutableArray *oneofs = nil;
+ NSMutableArray *enums = nil;
+ NSMutableArray *extensionRanges = nil;
+ GPBFileSyntax syntax = file.syntax;
+ for (NSUInteger i = 0; i < fieldCount; ++i) {
+ if (fields == nil) {
+ fields = [[NSMutableArray alloc] initWithCapacity:fieldCount];
+ }
+ GPBFieldDescriptor *fieldDescriptor = [[GPBFieldDescriptor alloc]
+ initWithFieldDescription:&fieldDescriptions[i]
+ rootClass:rootClass
+ syntax:syntax];
+ [fields addObject:fieldDescriptor];
+ [fieldDescriptor release];
+ }
+ for (NSUInteger i = 0; i < oneofCount; ++i) {
+ if (oneofs == nil) {
+ oneofs = [[NSMutableArray alloc] initWithCapacity:oneofCount];
+ }
+ GPBMessageOneofDescription *oneofDescription = &oneofDescriptions[i];
+ NSArray *fieldsForOneof =
+ NewFieldsArrayForHasIndex(oneofDescription->index, fields);
+ GPBOneofDescriptor *oneofDescriptor =
+ [[GPBOneofDescriptor alloc] initWithOneofDescription:oneofDescription
+ fields:fieldsForOneof];
+ [oneofs addObject:oneofDescriptor];
+ [oneofDescriptor release];
+ [fieldsForOneof release];
+ }
+ for (NSUInteger i = 0; i < enumCount; ++i) {
+ if (enums == nil) {
+ enums = [[NSMutableArray alloc] initWithCapacity:enumCount];
+ }
+ GPBEnumDescriptor *enumDescriptor =
+ enumDescriptions[i].enumDescriptorFunc();
+ [enums addObject:enumDescriptor];
+ }
+
+ // TODO(dmaclach): Add support for extensions
+ GPBDescriptor *descriptor = [[self alloc] initWithClass:messageClass
+ file:file
+ fields:fields
+ oneofs:oneofs
+ enums:enums
+ extensions:nil
+ extensionRanges:ranges
+ extensionRangesCount:rangeCount
+ storageSize:storageSize
+ wireFormat:wireFormat];
+ [fields release];
+ [oneofs release];
+ [enums release];
+ [extensionRanges release];
+ return descriptor;
+}
+
++ (instancetype)
+ allocDescriptorForClass:(Class)messageClass
+ rootClass:(Class)rootClass
+ file:(GPBFileDescriptor *)file
+ fields:(GPBMessageFieldDescription *)fieldDescriptions
+ fieldCount:(NSUInteger)fieldCount
+ oneofs:(GPBMessageOneofDescription *)oneofDescriptions
+ oneofCount:(NSUInteger)oneofCount
+ enums:(GPBMessageEnumDescription *)enumDescriptions
+ enumCount:(NSUInteger)enumCount
+ ranges:(const GPBExtensionRange *)ranges
+ rangeCount:(NSUInteger)rangeCount
+ storageSize:(size_t)storageSize
+ wireFormat:(BOOL)wireFormat
+ extraTextFormatInfo:(const char *)extraTextFormatInfo {
+ GPBDescriptor *descriptor = [self allocDescriptorForClass:messageClass
+ rootClass:rootClass
+ file:file
+ fields:fieldDescriptions
+ fieldCount:fieldCount
+ oneofs:oneofDescriptions
+ oneofCount:oneofCount
+ enums:enumDescriptions
+ enumCount:enumCount
+ ranges:ranges
+ rangeCount:rangeCount
+ storageSize:storageSize
+ wireFormat:wireFormat];
+ // 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 descriptor->fields_) {
+ if (fieldDescriptor->description_->flags & GPBFieldTextFormatNameCustom) {
+ objc_setAssociatedObject(fieldDescriptor, &kTextFormatExtraValueKey,
+ extraInfoValue,
+ OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+ }
+ }
+ }
+ return descriptor;
+}
+
+- (instancetype)initWithClass:(Class)messageClass
+ file:(GPBFileDescriptor *)file
+ fields:(NSArray *)fields
+ oneofs:(NSArray *)oneofs
+ enums:(NSArray *)enums
+ extensions:(NSArray *)extensions
+ extensionRanges:(const GPBExtensionRange *)extensionRanges
+ extensionRangesCount:(NSUInteger)extensionRangesCount
+ storageSize:(size_t)storageSize
+ wireFormat:(BOOL)wireFormat {
+ if ((self = [super init])) {
+ messageClass_ = messageClass;
+ file_ = file;
+ fields_ = [fields retain];
+ oneofs_ = [oneofs retain];
+ enums_ = [enums retain];
+ extensions_ = [extensions retain];
+ extensionRanges_ = extensionRanges;
+ extensionRangesCount_ = extensionRangesCount;
+ storageSize_ = storageSize;
+ wireFormat_ = wireFormat;
+ }
+ return self;
+}
+
+- (void)dealloc {
+ [fields_ release];
+ [oneofs_ release];
+ [enums_ release];
+ [extensions_ release];
+ [super dealloc];
+}
+
+- (NSString *)name {
+ return NSStringFromClass(messageClass_);
+}
+
+- (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;
+}
+
+- (GPBEnumDescriptor *)enumWithName:(NSString *)name {
+ for (GPBEnumDescriptor *descriptor in enums_) {
+ if ([descriptor.name isEqual:name]) {
+ return descriptor;
+ }
+ }
+ return nil;
+}
+
+- (GPBFieldDescriptor *)extensionWithNumber:(uint32_t)fieldNumber {
+ for (GPBFieldDescriptor *descriptor in extensions_) {
+ if (GPBFieldNumber(descriptor) == fieldNumber) {
+ return descriptor;
+ }
+ }
+ return nil;
+}
+
+- (GPBFieldDescriptor *)extensionWithName:(NSString *)name {
+ for (GPBFieldDescriptor *descriptor in extensions_) {
+ if ([descriptor.name isEqual:name]) {
+ return descriptor;
+ }
+ }
+ return nil;
+}
+
+@end
+
+@implementation GPBFileDescriptor {
+ NSString *package_;
+ GPBFileSyntax syntax_;
+}
+
+@synthesize package = package_;
+@synthesize syntax = syntax_;
+
+- (instancetype)initWithPackage:(NSString *)package
+ syntax:(GPBFileSyntax)syntax {
+ self = [super init];
+ if (self) {
+ package_ = [package copy];
+ syntax_ = syntax;
+ }
+ return self;
+}
+
+@end
+
+@implementation GPBOneofDescriptor
+
+@synthesize fields = fields_;
+
+- (instancetype)initWithOneofDescription:
+ (GPBMessageOneofDescription *)oneofDescription
+ fields:(NSArray *)fields {
+ self = [super init];
+ if (self) {
+ NSAssert(oneofDescription->index < 0, @"Should always be <0");
+ oneofDescription_ = oneofDescription;
+ fields_ = [fields retain];
+ for (GPBFieldDescriptor *fieldDesc in fields) {
+ fieldDesc->containingOneof_ = self;
+ }
+
+ caseSel_ = SelFromStrings(NULL, oneofDescription->name, "OneOfCase", NO);
+ }
+ return self;
+}
+
+- (void)dealloc {
+ [fields_ release];
+ [super dealloc];
+}
+
+- (NSString *)name {
+ return [NSString stringWithUTF8String:oneofDescription_->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(GPBTypeMessage, NO);
+ } else {
+ format = GPBWireFormatForType(description->type,
+ description->flags & GPBFieldPacked);
+ }
+ return GPBWireFormatMakeTag(description->number, format);
+}
+
+@implementation GPBFieldDescriptor {
+ GPBValue defaultValue_;
+ GPBFieldOptions *fieldOptions_;
+
+ // 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 fieldOptions = fieldOptions_;
+@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:
+ (GPBMessageFieldDescription *)description
+ rootClass:(Class)rootClass
+ syntax:(GPBFileSyntax)syntax {
+ if ((self = [super init])) {
+ description_ = description;
+ getSel_ = sel_getUid(description->name);
+ setSel_ = SelFromStrings("set", description->name, NULL, YES);
+
+ if (description->fieldOptions) {
+ // FieldOptions stored as a length prefixed c-escaped string in descriptor
+ // records.
+ uint8_t *optionsBytes = (uint8_t *)description->fieldOptions;
+ uint32_t optionsLength = *((uint32_t *)optionsBytes);
+ // The length is stored in network byte order.
+ optionsLength = ntohl(optionsLength);
+ if (optionsLength > 0) {
+ optionsBytes += sizeof(optionsLength);
+ NSData *optionsData = [NSData dataWithBytesNoCopy:optionsBytes
+ length:optionsLength
+ freeWhenDone:NO];
+ GPBExtensionRegistry *registry = [rootClass extensionRegistry];
+ fieldOptions_ = [[GPBFieldOptions parseFromData:optionsData
+ extensionRegistry:registry] retain];
+ }
+ }
+
+ GPBType type = description->type;
+ BOOL isMessage = GPBTypeIsMessage(type);
+ if (isMessage) {
+ // No has* for repeated/map or something in a oneof (we can't check
+ // containingOneof_ because it isn't set until after initialization).
+ if ((description->hasIndex >= 0) &&
+ (description->hasIndex != GPBNoHasBit)) {
+ hasSel_ = SelFromStrings("has", description->name, NULL, NO);
+ setHasSel_ = SelFromStrings("setHas", description->name, NULL, YES);
+ }
+ const char *className = description->typeSpecific.className;
+ msgClass_ = objc_getClass(className);
+ NSAssert1(msgClass_, @"Class %s not defined", className);
+ // The defaultValue_ is fetched directly in -defaultValue to avoid
+ // initialization order issues.
+ } else {
+ if (!GPBFieldIsMapOrArray(self)) {
+ defaultValue_ = description->defaultValue;
+ if (type == GPBTypeData) {
+ // Data stored as a length prefixed c-string in descriptor records.
+ const uint8_t *bytes = (const uint8_t *)defaultValue_.valueData;
+ if (bytes) {
+ uint32_t length = *((uint32_t *)bytes);
+ // The length is stored in network byte order.
+ length = ntohl(length);
+ bytes += sizeof(length);
+ defaultValue_.valueData =
+ [[NSData alloc] initWithBytes:bytes length:length];
+ }
+ }
+ // No has* methods for proto3 or if our hasIndex is < 0 because it
+ // means the field is in a oneof (we can't check containingOneof_
+ // because it isn't set until after initialization).
+ if ((syntax != GPBFileSyntaxProto3) && (description->hasIndex >= 0) &&
+ (description->hasIndex != GPBNoHasBit)) {
+ hasSel_ = SelFromStrings("has", description->name, NULL, NO);
+ setHasSel_ = SelFromStrings("setHas", description->name, NULL, YES);
+ }
+ }
+ if (GPBTypeIsEnum(type)) {
+ if (description_->flags & GPBFieldHasEnumDescriptor) {
+ enumHandling_.enumDescriptor_ =
+ description->typeSpecific.enumDescFunc();
+ } else {
+ enumHandling_.enumVerifier_ = description->typeSpecific.enumVerifier;
+ }
+ }
+ }
+ }
+ return self;
+}
+
+- (void)dealloc {
+ if (description_->type == GPBTypeData &&
+ !(description_->flags & GPBFieldRepeated)) {
+ [defaultValue_.valueData release];
+ }
+ [super dealloc];
+}
+
+- (GPBType)type {
+ return description_->type;
+}
+
+- (BOOL)hasDefaultValue {
+ return (description_->flags & GPBFieldHasDefaultValue) != 0;
+}
+
+- (uint32_t)number {
+ return description_->number;
+}
+
+- (NSString *)name {
+ return [NSString stringWithUTF8String: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;
+ }
+}
+
+- (GPBType)mapKeyType {
+ switch (description_->flags & GPBFieldMapKeyMask) {
+ case GPBFieldMapKeyInt32:
+ return GPBTypeInt32;
+ case GPBFieldMapKeyInt64:
+ return GPBTypeInt64;
+ case GPBFieldMapKeyUInt32:
+ return GPBTypeUInt32;
+ case GPBFieldMapKeyUInt64:
+ return GPBTypeUInt64;
+ case GPBFieldMapKeySInt32:
+ return GPBTypeSInt32;
+ case GPBFieldMapKeySInt64:
+ return GPBTypeSInt64;
+ case GPBFieldMapKeyFixed32:
+ return GPBTypeFixed32;
+ case GPBFieldMapKeyFixed64:
+ return GPBTypeFixed64;
+ case GPBFieldMapKeySFixed32:
+ return GPBTypeSFixed32;
+ case GPBFieldMapKeySFixed64:
+ return GPBTypeSFixed64;
+ case GPBFieldMapKeyBool:
+ return GPBTypeBool;
+ case GPBFieldMapKeyString:
+ return GPBTypeString;
+
+ default:
+ NSAssert(0, @"Not a map type");
+ return GPBTypeInt32; // For lack of anything better.
+ }
+}
+
+- (BOOL)isPackable {
+ return (description_->flags & GPBFieldPacked) != 0;
+}
+
+- (BOOL)isValidEnumValue:(int32_t)value {
+ NSAssert(description_->type == GPBTypeEnum,
+ @"Field Must be of type GPBTypeEnum");
+ 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;
+ }
+}
+
+- (GPBValue)defaultValue {
+ // Depends on the fact that defaultValue_ is initialized either to "0/nil" or
+ // to an actual defaultValue in our initializer.
+ GPBValue value = defaultValue_;
+
+ if (!(description_->flags & GPBFieldRepeated)) {
+ // We special handle data and strings. If they are nil, we replace them
+ // with empty string/empty data.
+ GPBType type = description_->type;
+ if (type == GPBTypeData && value.valueData == nil) {
+ value.valueData = GPBEmptyNSData();
+ } else if (type == GPBTypeString && 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_->type == GPBTypeGroup) {
+ // 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 (NSUInteger 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_;
+ GPBMessageEnumValueDescription *valueDescriptions_;
+ NSUInteger valueDescriptionsCount_;
+ GPBEnumValidationFunc enumVerifier_;
+ const uint8_t *extraTextFormatInfo_;
+}
+
+@synthesize name = name_;
+@synthesize enumVerifier = enumVerifier_;
+
++ (instancetype)
+ allocDescriptorForName:(NSString *)name
+ values:(GPBMessageEnumValueDescription *)valueDescriptions
+ valueCount:(NSUInteger)valueCount
+ enumVerifier:(GPBEnumValidationFunc)enumVerifier {
+ GPBEnumDescriptor *descriptor = [[self alloc] initWithName:name
+ values:valueDescriptions
+ valueCount:valueCount
+ enumVerifier:enumVerifier];
+ return descriptor;
+}
+
++ (instancetype)
+ allocDescriptorForName:(NSString *)name
+ values:(GPBMessageEnumValueDescription *)valueDescriptions
+ valueCount:(NSUInteger)valueCount
+ enumVerifier:(GPBEnumValidationFunc)enumVerifier
+ extraTextFormatInfo:(const char *)extraTextFormatInfo {
+ // Call the common case.
+ GPBEnumDescriptor *descriptor = [self allocDescriptorForName:name
+ values:valueDescriptions
+ valueCount:valueCount
+ enumVerifier:enumVerifier];
+ // Set the extra info.
+ descriptor->extraTextFormatInfo_ = (const uint8_t *)extraTextFormatInfo;
+ return descriptor;
+}
+
+- (instancetype)initWithName:(NSString *)name
+ values:(GPBMessageEnumValueDescription *)valueDescriptions
+ valueCount:(NSUInteger)valueCount
+ enumVerifier:(GPBEnumValidationFunc)enumVerifier {
+ if ((self = [super init])) {
+ name_ = [name copy];
+ valueDescriptions_ = valueDescriptions;
+ valueDescriptionsCount_ = valueCount;
+ enumVerifier_ = enumVerifier;
+ }
+ return self;
+}
+
+- (NSString *)enumNameForValue:(int32_t)number {
+ for (NSUInteger i = 0; i < valueDescriptionsCount_; ++i) {
+ GPBMessageEnumValueDescription *scan = &valueDescriptions_[i];
+ if ((scan->number == number) && (scan->name != NULL)) {
+ NSString *fullName =
+ [NSString stringWithFormat:@"%@_%s", name_, scan->name];
+ 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;
+
+ // Find it.
+ for (NSUInteger i = 0; i < valueDescriptionsCount_; ++i) {
+ GPBMessageEnumValueDescription *scan = &valueDescriptions_[i];
+ if ((scan->name != NULL) && (strcmp(nameAsCStr, scan->name) == 0)) {
+ if (outValue) {
+ *outValue = scan->number;
+ }
+ return YES;
+ }
+ }
+ return NO;
+}
+
+- (void)dealloc {
+ [name_ release];
+ [super dealloc];
+}
+
+- (NSString *)textFormatNameForValue:(int32_t)number {
+ // Find the EnumValue descriptor and its index.
+ GPBMessageEnumValueDescription *valueDescriptor = NULL;
+ NSUInteger valueDescriptorIndex;
+ for (valueDescriptorIndex = 0; valueDescriptorIndex < valueDescriptionsCount_;
+ ++valueDescriptorIndex) {
+ GPBMessageEnumValueDescription *scan =
+ &valueDescriptions_[valueDescriptorIndex];
+ if (scan->number == number) {
+ valueDescriptor = scan;
+ break;
+ }
+ }
+
+ // If we didn't find it, or names were disable at proto compile time, nothing
+ // we can do.
+ if (!valueDescriptor || !valueDescriptor->name) {
+ return nil;
+ }
+
+ NSString *result = nil;
+ // Naming adds an underscore between enum name and value name, skip that also.
+ NSString *shortName = [NSString stringWithUTF8String:valueDescriptor->name];
+
+ // 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
+
+- (instancetype)initWithExtensionDescription:
+ (GPBExtensionDescription *)description {
+ if ((self = [super init])) {
+ description_ = description;
+ }
+ return self;
+}
+
+- (NSString *)singletonName {
+ return [NSString stringWithUTF8String:description_->singletonName];
+}
+
+- (const char *)singletonNameC {
+ return description_->singletonName;
+}
+
+- (uint32_t)fieldNumber {
+ return description_->fieldNumber;
+}
+
+- (GPBType)type {
+ return description_->type;
+}
+
+- (BOOL)isRepeated {
+ return (description_->options & GPBExtensionRepeated) != 0;
+}
+
+- (BOOL)isMap {
+ return (description_->options & GPBFieldMapKeyMask) != 0;
+}
+
+- (BOOL)isPackable {
+ return (description_->options & GPBExtensionPacked) != 0;
+}
+
+- (Class)msgClass {
+ return objc_getClass(description_->messageOrGroupClassName);
+}
+
+- (GPBEnumDescriptor *)enumDescriptor {
+ if (GPBTypeIsEnum(description_->type)) {
+ GPBEnumDescriptor *enumDescriptor = description_->enumDescriptorFunc();
+ return enumDescriptor;
+ }
+ return nil;
+}
+
+@end
