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GPBUtilities.m
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GPBUtilities.m
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// 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 "GPBUtilities_PackagePrivate.h"
#import <objc/runtime.h>
#import "GPBArray_PackagePrivate.h"
#import "GPBDescriptor_PackagePrivate.h"
#import "GPBDictionary_PackagePrivate.h"
#import "GPBMessage_PackagePrivate.h"
#import "GPBUnknownField.h"
#import "GPBUnknownFieldSet.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"
static void AppendTextFormatForMessage(GPBMessage *message,
NSMutableString *toStr,
NSString *lineIndent);
// Are two datatypes the same basic type representation (ex Int32 and SInt32).
// Marked unused because currently only called from asserts/debug.
static BOOL DataTypesEquivalent(GPBDataType type1,
GPBDataType type2) __attribute__ ((unused));
// Basic type representation for a type (ex: for SInt32 it is Int32).
// Marked unused because currently only called from asserts/debug.
static GPBDataType BaseDataType(GPBDataType type) __attribute__ ((unused));
// String name for a data type.
// Marked unused because currently only called from asserts/debug.
static NSString *TypeToString(GPBDataType dataType) __attribute__ ((unused));
NSData *GPBEmptyNSData(void) {
static dispatch_once_t onceToken;
static NSData *defaultNSData = nil;
dispatch_once(&onceToken, ^{
defaultNSData = [[NSData alloc] init];
});
return defaultNSData;
}
void GPBMessageDropUnknownFieldsRecursively(GPBMessage *initialMessage) {
if (!initialMessage) {
return;
}
// Use an array as a list to process to avoid recursion.
NSMutableArray *todo = [NSMutableArray arrayWithObject:initialMessage];
while (todo.count) {
GPBMessage *msg = todo.lastObject;
[todo removeLastObject];
// Clear unknowns.
msg.unknownFields = nil;
// Handle the message fields.
GPBDescriptor *descriptor = [[msg class] descriptor];
for (GPBFieldDescriptor *field in descriptor->fields_) {
if (!GPBFieldDataTypeIsMessage(field)) {
continue;
}
switch (field.fieldType) {
case GPBFieldTypeSingle:
if (GPBGetHasIvarField(msg, field)) {
GPBMessage *fieldMessage = GPBGetObjectIvarWithFieldNoAutocreate(msg, field);
[todo addObject:fieldMessage];
}
break;
case GPBFieldTypeRepeated: {
NSArray *fieldMessages = GPBGetObjectIvarWithFieldNoAutocreate(msg, field);
if (fieldMessages.count) {
[todo addObjectsFromArray:fieldMessages];
}
break;
}
case GPBFieldTypeMap: {
id rawFieldMap = GPBGetObjectIvarWithFieldNoAutocreate(msg, field);
switch (field.mapKeyDataType) {
case GPBDataTypeBool:
[(GPBBoolObjectDictionary*)rawFieldMap enumerateKeysAndObjectsUsingBlock:^(
BOOL key, id _Nonnull object, BOOL * _Nonnull stop) {
#pragma unused(key, stop)
[todo addObject:object];
}];
break;
case GPBDataTypeFixed32:
case GPBDataTypeUInt32:
[(GPBUInt32ObjectDictionary*)rawFieldMap enumerateKeysAndObjectsUsingBlock:^(
uint32_t key, id _Nonnull object, BOOL * _Nonnull stop) {
#pragma unused(key, stop)
[todo addObject:object];
}];
break;
case GPBDataTypeInt32:
case GPBDataTypeSFixed32:
case GPBDataTypeSInt32:
[(GPBInt32ObjectDictionary*)rawFieldMap enumerateKeysAndObjectsUsingBlock:^(
int32_t key, id _Nonnull object, BOOL * _Nonnull stop) {
#pragma unused(key, stop)
[todo addObject:object];
}];
break;
case GPBDataTypeFixed64:
case GPBDataTypeUInt64:
[(GPBUInt64ObjectDictionary*)rawFieldMap enumerateKeysAndObjectsUsingBlock:^(
uint64_t key, id _Nonnull object, BOOL * _Nonnull stop) {
#pragma unused(key, stop)
[todo addObject:object];
}];
break;
case GPBDataTypeInt64:
case GPBDataTypeSFixed64:
case GPBDataTypeSInt64:
[(GPBInt64ObjectDictionary*)rawFieldMap enumerateKeysAndObjectsUsingBlock:^(
int64_t key, id _Nonnull object, BOOL * _Nonnull stop) {
#pragma unused(key, stop)
[todo addObject:object];
}];
break;
case GPBDataTypeString:
[(NSDictionary*)rawFieldMap enumerateKeysAndObjectsUsingBlock:^(
NSString * _Nonnull key, GPBMessage * _Nonnull obj, BOOL * _Nonnull stop) {
#pragma unused(key, stop)
[todo addObject:obj];
}];
break;
case GPBDataTypeFloat:
case GPBDataTypeDouble:
case GPBDataTypeEnum:
case GPBDataTypeBytes:
case GPBDataTypeGroup:
case GPBDataTypeMessage:
NSCAssert(NO, @"Aren't valid key types.");
}
break;
} // switch(field.mapKeyDataType)
} // switch(field.fieldType)
} // for(fields)
// Handle any extensions holding messages.
for (GPBExtensionDescriptor *extension in [msg extensionsCurrentlySet]) {
if (!GPBDataTypeIsMessage(extension.dataType)) {
continue;
}
if (extension.isRepeated) {
NSArray *extMessages = [msg getExtension:extension];
[todo addObjectsFromArray:extMessages];
} else {
GPBMessage *extMessage = [msg getExtension:extension];
[todo addObject:extMessage];
}
} // for(extensionsCurrentlySet)
} // while(todo.count)
}
// -- About Version Checks --
// There's actually 3 places these checks all come into play:
// 1. When the generated source is compile into .o files, the header check
// happens. This is checking the protoc used matches the library being used
// when making the .o.
// 2. Every place a generated proto header is included in a developer's code,
// the header check comes into play again. But this time it is checking that
// the current library headers being used still support/match the ones for
// the generated code.
// 3. At runtime the final check here (GPBCheckRuntimeVersionsInternal), is
// called from the generated code passing in values captured when the
// generated code's .o was made. This checks that at runtime the generated
// code and runtime library match.
void GPBCheckRuntimeVersionSupport(int32_t objcRuntimeVersion) {
// NOTE: This is passing the value captured in the compiled code to check
// against the values captured when the runtime support was compiled. This
// ensures the library code isn't in a different framework/library that
// was generated with a non matching version.
if (GOOGLE_PROTOBUF_OBJC_VERSION < objcRuntimeVersion) {
// Library is too old for headers.
[NSException raise:NSInternalInconsistencyException
format:@"Linked to ProtocolBuffer runtime version %d,"
@" but code compiled needing atleast %d!",
GOOGLE_PROTOBUF_OBJC_VERSION, objcRuntimeVersion];
}
if (objcRuntimeVersion < GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION) {
// Headers are too old for library.
[NSException raise:NSInternalInconsistencyException
format:@"Proto generation source compiled against runtime"
@" version %d, but this version of the runtime only"
@" supports back to %d!",
objcRuntimeVersion,
GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION];
}
}
// This api is no longer used for version checks. 30001 is the last version
// using this old versioning model. When that support is removed, this function
// can be removed (along with the declaration in GPBUtilities_PackagePrivate.h).
void GPBCheckRuntimeVersionInternal(int32_t version) {
GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION == 30001,
time_to_remove_this_old_version_shim);
if (version != GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION) {
[NSException raise:NSInternalInconsistencyException
format:@"Linked to ProtocolBuffer runtime version %d,"
@" but code compiled with version %d!",
GOOGLE_PROTOBUF_OBJC_GEN_VERSION, version];
}
}
BOOL GPBMessageHasFieldNumberSet(GPBMessage *self, uint32_t fieldNumber) {
GPBDescriptor *descriptor = [self descriptor];
GPBFieldDescriptor *field = [descriptor fieldWithNumber:fieldNumber];
return GPBMessageHasFieldSet(self, field);
}
BOOL GPBMessageHasFieldSet(GPBMessage *self, GPBFieldDescriptor *field) {
if (self == nil || field == nil) return NO;
// Repeated/Map don't use the bit, they check the count.
if (GPBFieldIsMapOrArray(field)) {
// Array/map type doesn't matter, since GPB*Array/NSArray and
// GPB*Dictionary/NSDictionary all support -count;
NSArray *arrayOrMap = GPBGetObjectIvarWithFieldNoAutocreate(self, field);
return (arrayOrMap.count > 0);
} else {
return GPBGetHasIvarField(self, field);
}
}
void GPBClearMessageField(GPBMessage *self, GPBFieldDescriptor *field) {
// If not set, nothing to do.
if (!GPBGetHasIvarField(self, field)) {
return;
}
if (GPBFieldStoresObject(field)) {
// Object types are handled slightly differently, they need to be released.
uint8_t *storage = (uint8_t *)self->messageStorage_;
id *typePtr = (id *)&storage[field->description_->offset];
[*typePtr release];
*typePtr = nil;
} else {
// POD types just need to clear the has bit as the Get* method will
// fetch the default when needed.
}
GPBSetHasIvarField(self, field, NO);
}
BOOL GPBGetHasIvar(GPBMessage *self, int32_t idx, uint32_t fieldNumber) {
NSCAssert(self->messageStorage_ != NULL,
@"%@: All messages should have storage (from init)",
[self class]);
if (idx < 0) {
NSCAssert(fieldNumber != 0, @"Invalid field number.");
BOOL hasIvar = (self->messageStorage_->_has_storage_[-idx] == fieldNumber);
return hasIvar;
} else {
NSCAssert(idx != GPBNoHasBit, @"Invalid has bit.");
uint32_t byteIndex = idx / 32;
uint32_t bitMask = (1U << (idx % 32));
BOOL hasIvar =
(self->messageStorage_->_has_storage_[byteIndex] & bitMask) ? YES : NO;
return hasIvar;
}
}
uint32_t GPBGetHasOneof(GPBMessage *self, int32_t idx) {
NSCAssert(idx < 0, @"%@: invalid index (%d) for oneof.",
[self class], idx);
uint32_t result = self->messageStorage_->_has_storage_[-idx];
return result;
}
void GPBSetHasIvar(GPBMessage *self, int32_t idx, uint32_t fieldNumber,
BOOL value) {
if (idx < 0) {
NSCAssert(fieldNumber != 0, @"Invalid field number.");
uint32_t *has_storage = self->messageStorage_->_has_storage_;
has_storage[-idx] = (value ? fieldNumber : 0);
} else {
NSCAssert(idx != GPBNoHasBit, @"Invalid has bit.");
uint32_t *has_storage = self->messageStorage_->_has_storage_;
uint32_t byte = idx / 32;
uint32_t bitMask = (1U << (idx % 32));
if (value) {
has_storage[byte] |= bitMask;
} else {
has_storage[byte] &= ~bitMask;
}
}
}
void GPBMaybeClearOneof(GPBMessage *self, GPBOneofDescriptor *oneof,
int32_t oneofHasIndex, uint32_t fieldNumberNotToClear) {
uint32_t fieldNumberSet = GPBGetHasOneof(self, oneofHasIndex);
if ((fieldNumberSet == fieldNumberNotToClear) || (fieldNumberSet == 0)) {
// Do nothing/nothing set in the oneof.
return;
}
// Like GPBClearMessageField(), free the memory if an objecttype is set,
// pod types don't need to do anything.
GPBFieldDescriptor *fieldSet = [oneof fieldWithNumber:fieldNumberSet];
NSCAssert(fieldSet,
@"%@: oneof set to something (%u) not in the oneof?",
[self class], fieldNumberSet);
if (fieldSet && GPBFieldStoresObject(fieldSet)) {
uint8_t *storage = (uint8_t *)self->messageStorage_;
id *typePtr = (id *)&storage[fieldSet->description_->offset];
[*typePtr release];
*typePtr = nil;
}
// Set to nothing stored in the oneof.
// (field number doesn't matter since setting to nothing).
GPBSetHasIvar(self, oneofHasIndex, 1, NO);
}
#pragma mark - IVar accessors
//%PDDM-DEFINE IVAR_POD_ACCESSORS_DEFN(NAME, TYPE)
//%TYPE GPBGetMessage##NAME##Field(GPBMessage *self,
//% TYPE$S NAME$S GPBFieldDescriptor *field) {
//%#if defined(DEBUG) && DEBUG
//% NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
//% GPBDataType##NAME),
//% @"Attempting to get value of TYPE from field %@ "
//% @"of %@ which is of type %@.",
//% [self class], field.name,
//% TypeToString(GPBGetFieldDataType(field)));
//%#endif
//% if (GPBGetHasIvarField(self, field)) {
//% uint8_t *storage = (uint8_t *)self->messageStorage_;
//% TYPE *typePtr = (TYPE *)&storage[field->description_->offset];
//% return *typePtr;
//% } else {
//% return field.defaultValue.value##NAME;
//% }
//%}
//%
//%// Only exists for public api, no core code should use this.
//%void GPBSetMessage##NAME##Field(GPBMessage *self,
//% NAME$S GPBFieldDescriptor *field,
//% NAME$S TYPE value) {
//% if (self == nil || field == nil) return;
//% GPBFileSyntax syntax = [self descriptor].file.syntax;
//% GPBSet##NAME##IvarWithFieldInternal(self, field, value, syntax);
//%}
//%
//%void GPBSet##NAME##IvarWithFieldInternal(GPBMessage *self,
//% NAME$S GPBFieldDescriptor *field,
//% NAME$S TYPE value,
//% NAME$S GPBFileSyntax syntax) {
//%#if defined(DEBUG) && DEBUG
//% NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
//% GPBDataType##NAME),
//% @"Attempting to set field %@ of %@ which is of type %@ with "
//% @"value of type TYPE.",
//% [self class], field.name,
//% TypeToString(GPBGetFieldDataType(field)));
//%#endif
//% GPBOneofDescriptor *oneof = field->containingOneof_;
//% if (oneof) {
//% GPBMessageFieldDescription *fieldDesc = field->description_;
//% GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
//% }
//%#if defined(DEBUG) && DEBUG
//% NSCAssert(self->messageStorage_ != NULL,
//% @"%@: All messages should have storage (from init)",
//% [self class]);
//%#endif
//%#if defined(__clang_analyzer__)
//% if (self->messageStorage_ == NULL) return;
//%#endif
//% uint8_t *storage = (uint8_t *)self->messageStorage_;
//% TYPE *typePtr = (TYPE *)&storage[field->description_->offset];
//% *typePtr = value;
//% // proto2: any value counts as having been set; proto3, it
//% // has to be a non zero value or be in a oneof.
//% BOOL hasValue = ((syntax == GPBFileSyntaxProto2)
//% || (value != (TYPE)0)
//% || (field->containingOneof_ != NULL));
//% GPBSetHasIvarField(self, field, hasValue);
//% GPBBecomeVisibleToAutocreator(self);
//%}
//%
//%PDDM-DEFINE IVAR_ALIAS_DEFN_OBJECT(NAME, TYPE)
//%// Only exists for public api, no core code should use this.
//%TYPE *GPBGetMessage##NAME##Field(GPBMessage *self,
//% TYPE$S NAME$S GPBFieldDescriptor *field) {
//%#if defined(DEBUG) && DEBUG
//% NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
//% GPBDataType##NAME),
//% @"Attempting to get value of TYPE from field %@ "
//% @"of %@ which is of type %@.",
//% [self class], field.name,
//% TypeToString(GPBGetFieldDataType(field)));
//%#endif
//% return (TYPE *)GPBGetObjectIvarWithField(self, field);
//%}
//%
//%// Only exists for public api, no core code should use this.
//%void GPBSetMessage##NAME##Field(GPBMessage *self,
//% NAME$S GPBFieldDescriptor *field,
//% NAME$S TYPE *value) {
//%#if defined(DEBUG) && DEBUG
//% NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
//% GPBDataType##NAME),
//% @"Attempting to set field %@ of %@ which is of type %@ with "
//% @"value of type TYPE.",
//% [self class], field.name,
//% TypeToString(GPBGetFieldDataType(field)));
//%#endif
//% GPBSetObjectIvarWithField(self, field, (id)value);
//%}
//%
//%PDDM-DEFINE IVAR_ALIAS_DEFN_COPY_OBJECT(NAME, TYPE)
//%// Only exists for public api, no core code should use this.
//%TYPE *GPBGetMessage##NAME##Field(GPBMessage *self,
//% TYPE$S NAME$S GPBFieldDescriptor *field) {
//%#if defined(DEBUG) && DEBUG
//% NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
//% GPBDataType##NAME),
//% @"Attempting to get value of TYPE from field %@ "
//% @"of %@ which is of type %@.",
//% [self class], field.name,
//% TypeToString(GPBGetFieldDataType(field)));
//%#endif
//% return (TYPE *)GPBGetObjectIvarWithField(self, field);
//%}
//%
//%// Only exists for public api, no core code should use this.
//%void GPBSetMessage##NAME##Field(GPBMessage *self,
//% NAME$S GPBFieldDescriptor *field,
//% NAME$S TYPE *value) {
//%#if defined(DEBUG) && DEBUG
//% NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
//% GPBDataType##NAME),
//% @"Attempting to set field %@ of %@ which is of type %@ with "
//% @"value of type TYPE.",
//% [self class], field.name,
//% TypeToString(GPBGetFieldDataType(field)));
//%#endif
//% GPBSetCopyObjectIvarWithField(self, field, (id)value);
//%}
//%
// Object types are handled slightly differently, they need to be released
// and retained.
void GPBSetAutocreatedRetainedObjectIvarWithField(
GPBMessage *self, GPBFieldDescriptor *field,
id __attribute__((ns_consumed)) value) {
uint8_t *storage = (uint8_t *)self->messageStorage_;
id *typePtr = (id *)&storage[field->description_->offset];
NSCAssert(*typePtr == NULL, @"Can't set autocreated object more than once.");
*typePtr = value;
}
void GPBClearAutocreatedMessageIvarWithField(GPBMessage *self,
GPBFieldDescriptor *field) {
if (GPBGetHasIvarField(self, field)) {
return;
}
uint8_t *storage = (uint8_t *)self->messageStorage_;
id *typePtr = (id *)&storage[field->description_->offset];
GPBMessage *oldValue = *typePtr;
*typePtr = NULL;
GPBClearMessageAutocreator(oldValue);
[oldValue release];
}
// This exists only for bridging some aliased types, nothing else should use it.
static void GPBSetObjectIvarWithField(GPBMessage *self,
GPBFieldDescriptor *field, id value) {
if (self == nil || field == nil) return;
GPBFileSyntax syntax = [self descriptor].file.syntax;
GPBSetRetainedObjectIvarWithFieldInternal(self, field, [value retain],
syntax);
}
static void GPBSetCopyObjectIvarWithField(GPBMessage *self,
GPBFieldDescriptor *field, id value);
// GPBSetCopyObjectIvarWithField is blocked from the analyzer because it flags
// a leak for the -copy even though GPBSetRetainedObjectIvarWithFieldInternal
// is marked as consuming the value. Note: For some reason this doesn't happen
// with the -retain in GPBSetObjectIvarWithField.
#if !defined(__clang_analyzer__)
// This exists only for bridging some aliased types, nothing else should use it.
static void GPBSetCopyObjectIvarWithField(GPBMessage *self,
GPBFieldDescriptor *field, id value) {
if (self == nil || field == nil) return;
GPBFileSyntax syntax = [self descriptor].file.syntax;
GPBSetRetainedObjectIvarWithFieldInternal(self, field, [value copy],
syntax);
}
#endif // !defined(__clang_analyzer__)
void GPBSetObjectIvarWithFieldInternal(GPBMessage *self,
GPBFieldDescriptor *field, id value,
GPBFileSyntax syntax) {
GPBSetRetainedObjectIvarWithFieldInternal(self, field, [value retain],
syntax);
}
void GPBSetRetainedObjectIvarWithFieldInternal(GPBMessage *self,
GPBFieldDescriptor *field,
id value, GPBFileSyntax syntax) {
NSCAssert(self->messageStorage_ != NULL,
@"%@: All messages should have storage (from init)",
[self class]);
#if defined(__clang_analyzer__)
if (self->messageStorage_ == NULL) return;
#endif
GPBDataType fieldType = GPBGetFieldDataType(field);
BOOL isMapOrArray = GPBFieldIsMapOrArray(field);
BOOL fieldIsMessage = GPBDataTypeIsMessage(fieldType);
#if defined(DEBUG) && DEBUG
if (value == nil && !isMapOrArray && !fieldIsMessage &&
field.hasDefaultValue) {
// Setting a message to nil is an obvious way to "clear" the value
// as there is no way to set a non-empty default value for messages.
//
// For Strings and Bytes that have default values set it is not clear what
// should be done when their value is set to nil. Is the intention just to
// clear the set value and reset to default, or is the intention to set the
// value to the empty string/data? Arguments can be made for both cases.
// 'nil' has been abused as a replacement for an empty string/data in ObjC.
// We decided to be consistent with all "object" types and clear the has
// field, and fall back on the default value. The warning below will only
// appear in debug, but the could should be changed so the intention is
// clear.
NSString *hasSel = NSStringFromSelector(field->hasOrCountSel_);
NSString *propName = field.name;
NSString *className = self.descriptor.name;
NSLog(@"warning: '%@.%@ = nil;' is not clearly defined for fields with "
@"default values. Please use '%@.%@ = %@' if you want to set it to "
@"empty, or call '%@.%@ = NO' to reset it to it's default value of "
@"'%@'. Defaulting to resetting default value.",
className, propName, className, propName,
(fieldType == GPBDataTypeString) ? @"@\"\"" : @"GPBEmptyNSData()",
className, hasSel, field.defaultValue.valueString);
// Note: valueString, depending on the type, it could easily be
// valueData/valueMessage.
}
#endif // DEBUG
if (!isMapOrArray) {
// Non repeated/map can be in an oneof, clear any existing value from the
// oneof.
GPBOneofDescriptor *oneof = field->containingOneof_;
if (oneof) {
GPBMessageFieldDescription *fieldDesc = field->description_;
GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
}
// Clear "has" if they are being set to nil.
BOOL setHasValue = (value != nil);
// Under proto3, Bytes & String fields get cleared by resetting them to
// their default (empty) values, so if they are set to something of length
// zero, they are being cleared.
if ((syntax == GPBFileSyntaxProto3) && !fieldIsMessage &&
([value length] == 0)) {
// Except, if the field was in a oneof, then it still gets recorded as
// having been set so the state of the oneof can be serialized back out.
if (!oneof) {
setHasValue = NO;
}
if (setHasValue) {
NSCAssert(value != nil, @"Should never be setting has for nil");
} else {
// The value passed in was retained, it must be released since we
// aren't saving anything in the field.
[value release];
value = nil;
}
}
GPBSetHasIvarField(self, field, setHasValue);
}
uint8_t *storage = (uint8_t *)self->messageStorage_;
id *typePtr = (id *)&storage[field->description_->offset];
id oldValue = *typePtr;
*typePtr = value;
if (oldValue) {
if (isMapOrArray) {
if (field.fieldType == GPBFieldTypeRepeated) {
// If the old array was autocreated by us, then clear it.
if (GPBDataTypeIsObject(fieldType)) {
if ([oldValue isKindOfClass:[GPBAutocreatedArray class]]) {
GPBAutocreatedArray *autoArray = oldValue;
if (autoArray->_autocreator == self) {
autoArray->_autocreator = nil;
}
}
} else {
// Type doesn't matter, it is a GPB*Array.
GPBInt32Array *gpbArray = oldValue;
if (gpbArray->_autocreator == self) {
gpbArray->_autocreator = nil;
}
}
} else { // GPBFieldTypeMap
// If the old map was autocreated by us, then clear it.
if ((field.mapKeyDataType == GPBDataTypeString) &&
GPBDataTypeIsObject(fieldType)) {
if ([oldValue isKindOfClass:[GPBAutocreatedDictionary class]]) {
GPBAutocreatedDictionary *autoDict = oldValue;
if (autoDict->_autocreator == self) {
autoDict->_autocreator = nil;
}
}
} else {
// Type doesn't matter, it is a GPB*Dictionary.
GPBInt32Int32Dictionary *gpbDict = oldValue;
if (gpbDict->_autocreator == self) {
gpbDict->_autocreator = nil;
}
}
}
} else if (fieldIsMessage) {
// If the old message value was autocreated by us, then clear it.
GPBMessage *oldMessageValue = oldValue;
if (GPBWasMessageAutocreatedBy(oldMessageValue, self)) {
GPBClearMessageAutocreator(oldMessageValue);
}
}
[oldValue release];
}
GPBBecomeVisibleToAutocreator(self);
}
id GPBGetObjectIvarWithFieldNoAutocreate(GPBMessage *self,
GPBFieldDescriptor *field) {
if (self->messageStorage_ == nil) {
return nil;
}
uint8_t *storage = (uint8_t *)self->messageStorage_;
id *typePtr = (id *)&storage[field->description_->offset];
return *typePtr;
}
// Only exists for public api, no core code should use this.
int32_t GPBGetMessageEnumField(GPBMessage *self, GPBFieldDescriptor *field) {
GPBFileSyntax syntax = [self descriptor].file.syntax;
return GPBGetEnumIvarWithFieldInternal(self, field, syntax);
}
int32_t GPBGetEnumIvarWithFieldInternal(GPBMessage *self,
GPBFieldDescriptor *field,
GPBFileSyntax syntax) {
#if defined(DEBUG) && DEBUG
NSCAssert(GPBGetFieldDataType(field) == GPBDataTypeEnum,
@"Attempting to get value of type Enum from field %@ "
@"of %@ which is of type %@.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
int32_t result = GPBGetMessageInt32Field(self, field);
// If this is presevering unknown enums, make sure the value is valid before
// returning it.
if (GPBHasPreservingUnknownEnumSemantics(syntax) &&
![field isValidEnumValue:result]) {
result = kGPBUnrecognizedEnumeratorValue;
}
return result;
}
// Only exists for public api, no core code should use this.
void GPBSetMessageEnumField(GPBMessage *self, GPBFieldDescriptor *field,
int32_t value) {
GPBFileSyntax syntax = [self descriptor].file.syntax;
GPBSetInt32IvarWithFieldInternal(self, field, value, syntax);
}
void GPBSetEnumIvarWithFieldInternal(GPBMessage *self,
GPBFieldDescriptor *field, int32_t value,
GPBFileSyntax syntax) {
#if defined(DEBUG) && DEBUG
NSCAssert(GPBGetFieldDataType(field) == GPBDataTypeEnum,
@"Attempting to set field %@ of %@ which is of type %@ with "
@"value of type Enum.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
// Don't allow in unknown values. Proto3 can use the Raw method.
if (![field isValidEnumValue:value]) {
[NSException raise:NSInvalidArgumentException
format:@"%@.%@: Attempt to set an unknown enum value (%d)",
[self class], field.name, value];
}
GPBSetInt32IvarWithFieldInternal(self, field, value, syntax);
}
// Only exists for public api, no core code should use this.
int32_t GPBGetMessageRawEnumField(GPBMessage *self,
GPBFieldDescriptor *field) {
int32_t result = GPBGetMessageInt32Field(self, field);
return result;
}
// Only exists for public api, no core code should use this.
void GPBSetMessageRawEnumField(GPBMessage *self, GPBFieldDescriptor *field,
int32_t value) {
GPBFileSyntax syntax = [self descriptor].file.syntax;
GPBSetInt32IvarWithFieldInternal(self, field, value, syntax);
}
BOOL GPBGetMessageBoolField(GPBMessage *self,
GPBFieldDescriptor *field) {
#if defined(DEBUG) && DEBUG
NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field), GPBDataTypeBool),
@"Attempting to get value of type bool from field %@ "
@"of %@ which is of type %@.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
if (GPBGetHasIvarField(self, field)) {
// Bools are stored in the has bits to avoid needing explicit space in the
// storage structure.
// (the field number passed to the HasIvar helper doesn't really matter
// since the offset is never negative)
GPBMessageFieldDescription *fieldDesc = field->description_;
return GPBGetHasIvar(self, (int32_t)(fieldDesc->offset), fieldDesc->number);
} else {
return field.defaultValue.valueBool;
}
}
// Only exists for public api, no core code should use this.
void GPBSetMessageBoolField(GPBMessage *self,
GPBFieldDescriptor *field,
BOOL value) {
if (self == nil || field == nil) return;
GPBFileSyntax syntax = [self descriptor].file.syntax;
GPBSetBoolIvarWithFieldInternal(self, field, value, syntax);
}
void GPBSetBoolIvarWithFieldInternal(GPBMessage *self,
GPBFieldDescriptor *field,
BOOL value,
GPBFileSyntax syntax) {
#if defined(DEBUG) && DEBUG
NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field), GPBDataTypeBool),
@"Attempting to set field %@ of %@ which is of type %@ with "
@"value of type bool.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
GPBMessageFieldDescription *fieldDesc = field->description_;
GPBOneofDescriptor *oneof = field->containingOneof_;
if (oneof) {
GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
}
// Bools are stored in the has bits to avoid needing explicit space in the
// storage structure.
// (the field number passed to the HasIvar helper doesn't really matter since
// the offset is never negative)
GPBSetHasIvar(self, (int32_t)(fieldDesc->offset), fieldDesc->number, value);
// proto2: any value counts as having been set; proto3, it
// has to be a non zero value or be in a oneof.
BOOL hasValue = ((syntax == GPBFileSyntaxProto2)
|| (value != (BOOL)0)
|| (field->containingOneof_ != NULL));
GPBSetHasIvarField(self, field, hasValue);
GPBBecomeVisibleToAutocreator(self);
}
//%PDDM-EXPAND IVAR_POD_ACCESSORS_DEFN(Int32, int32_t)
// This block of code is generated, do not edit it directly.
// clang-format off
int32_t GPBGetMessageInt32Field(GPBMessage *self,
GPBFieldDescriptor *field) {
#if defined(DEBUG) && DEBUG
NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
GPBDataTypeInt32),
@"Attempting to get value of int32_t from field %@ "
@"of %@ which is of type %@.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
if (GPBGetHasIvarField(self, field)) {
uint8_t *storage = (uint8_t *)self->messageStorage_;
int32_t *typePtr = (int32_t *)&storage[field->description_->offset];
return *typePtr;
} else {
return field.defaultValue.valueInt32;
}
}
// Only exists for public api, no core code should use this.
void GPBSetMessageInt32Field(GPBMessage *self,
GPBFieldDescriptor *field,
int32_t value) {
if (self == nil || field == nil) return;
GPBFileSyntax syntax = [self descriptor].file.syntax;
GPBSetInt32IvarWithFieldInternal(self, field, value, syntax);
}
void GPBSetInt32IvarWithFieldInternal(GPBMessage *self,
GPBFieldDescriptor *field,
int32_t value,
GPBFileSyntax syntax) {
#if defined(DEBUG) && DEBUG
NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
GPBDataTypeInt32),
@"Attempting to set field %@ of %@ which is of type %@ with "
@"value of type int32_t.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
GPBOneofDescriptor *oneof = field->containingOneof_;
if (oneof) {
GPBMessageFieldDescription *fieldDesc = field->description_;
GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
}
#if defined(DEBUG) && DEBUG
NSCAssert(self->messageStorage_ != NULL,
@"%@: All messages should have storage (from init)",
[self class]);
#endif
#if defined(__clang_analyzer__)
if (self->messageStorage_ == NULL) return;
#endif
uint8_t *storage = (uint8_t *)self->messageStorage_;
int32_t *typePtr = (int32_t *)&storage[field->description_->offset];
*typePtr = value;
// proto2: any value counts as having been set; proto3, it
// has to be a non zero value or be in a oneof.
BOOL hasValue = ((syntax == GPBFileSyntaxProto2)
|| (value != (int32_t)0)
|| (field->containingOneof_ != NULL));
GPBSetHasIvarField(self, field, hasValue);
GPBBecomeVisibleToAutocreator(self);
}
// clang-format on
//%PDDM-EXPAND IVAR_POD_ACCESSORS_DEFN(UInt32, uint32_t)
// This block of code is generated, do not edit it directly.
// clang-format off
uint32_t GPBGetMessageUInt32Field(GPBMessage *self,
GPBFieldDescriptor *field) {
#if defined(DEBUG) && DEBUG
NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
GPBDataTypeUInt32),
@"Attempting to get value of uint32_t from field %@ "
@"of %@ which is of type %@.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
if (GPBGetHasIvarField(self, field)) {
uint8_t *storage = (uint8_t *)self->messageStorage_;
uint32_t *typePtr = (uint32_t *)&storage[field->description_->offset];
return *typePtr;
} else {
return field.defaultValue.valueUInt32;
}
}
// Only exists for public api, no core code should use this.
void GPBSetMessageUInt32Field(GPBMessage *self,
GPBFieldDescriptor *field,
uint32_t value) {
if (self == nil || field == nil) return;
GPBFileSyntax syntax = [self descriptor].file.syntax;
GPBSetUInt32IvarWithFieldInternal(self, field, value, syntax);
}
void GPBSetUInt32IvarWithFieldInternal(GPBMessage *self,
GPBFieldDescriptor *field,
uint32_t value,
GPBFileSyntax syntax) {
#if defined(DEBUG) && DEBUG
NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
GPBDataTypeUInt32),
@"Attempting to set field %@ of %@ which is of type %@ with "
@"value of type uint32_t.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
GPBOneofDescriptor *oneof = field->containingOneof_;
if (oneof) {
GPBMessageFieldDescription *fieldDesc = field->description_;
GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
}
#if defined(DEBUG) && DEBUG
NSCAssert(self->messageStorage_ != NULL,
@"%@: All messages should have storage (from init)",
[self class]);
#endif
#if defined(__clang_analyzer__)
if (self->messageStorage_ == NULL) return;
#endif
uint8_t *storage = (uint8_t *)self->messageStorage_;
uint32_t *typePtr = (uint32_t *)&storage[field->description_->offset];
*typePtr = value;
// proto2: any value counts as having been set; proto3, it
// has to be a non zero value or be in a oneof.
BOOL hasValue = ((syntax == GPBFileSyntaxProto2)
|| (value != (uint32_t)0)
|| (field->containingOneof_ != NULL));
GPBSetHasIvarField(self, field, hasValue);
GPBBecomeVisibleToAutocreator(self);
}
// clang-format on
//%PDDM-EXPAND IVAR_POD_ACCESSORS_DEFN(Int64, int64_t)
// This block of code is generated, do not edit it directly.
// clang-format off
int64_t GPBGetMessageInt64Field(GPBMessage *self,
GPBFieldDescriptor *field) {
#if defined(DEBUG) && DEBUG
NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
GPBDataTypeInt64),
@"Attempting to get value of int64_t from field %@ "
@"of %@ which is of type %@.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
if (GPBGetHasIvarField(self, field)) {
uint8_t *storage = (uint8_t *)self->messageStorage_;
int64_t *typePtr = (int64_t *)&storage[field->description_->offset];
return *typePtr;
} else {
return field.defaultValue.valueInt64;
}
}
// Only exists for public api, no core code should use this.
void GPBSetMessageInt64Field(GPBMessage *self,
GPBFieldDescriptor *field,
int64_t value) {
if (self == nil || field == nil) return;
GPBFileSyntax syntax = [self descriptor].file.syntax;
GPBSetInt64IvarWithFieldInternal(self, field, value, syntax);
}
void GPBSetInt64IvarWithFieldInternal(GPBMessage *self,
GPBFieldDescriptor *field,
int64_t value,
GPBFileSyntax syntax) {
#if defined(DEBUG) && DEBUG
NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
GPBDataTypeInt64),
@"Attempting to set field %@ of %@ which is of type %@ with "
@"value of type int64_t.",
[self class], field.name,
TypeToString(GPBGetFieldDataType(field)));
#endif
GPBOneofDescriptor *oneof = field->containingOneof_;
if (oneof) {
GPBMessageFieldDescription *fieldDesc = field->description_;
GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
}
#if defined(DEBUG) && DEBUG
NSCAssert(self->messageStorage_ != NULL,
@"%@: All messages should have storage (from init)",
[self class]);
#endif