增加换肤功能

Pods/Protobuf/objectivec/GPBUnknownFieldSet.m

@@ -0,0 +1,348 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#import "GPBUnknownFieldSet.h"
+#import "GPBUnknownFieldSet_PackagePrivate.h"
+
+#import "GPBCodedInputStream.h"
+#import "GPBCodedInputStream_PackagePrivate.h"
+#import "GPBCodedOutputStream.h"
+#import "GPBUnknownField.h"
+#import "GPBUnknownField_PackagePrivate.h"
+#import "GPBUtilities.h"
+#import "GPBWireFormat.h"
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#pragma clang diagnostic ignored "-Wdeprecated-implementations"
+
+#pragma mark Helpers
+
+static void checkNumber(int32_t number) {
+  if (number == 0) {
+    [NSException raise:NSInvalidArgumentException format:@"Zero is not a valid field number."];
+  }
+}
+
+@implementation GPBUnknownFieldSet {
+ @package
+  CFMutableDictionaryRef fields_;
+}
+
+static void CopyWorker(__unused const void *key, const void *value, void *context) {
+  GPBUnknownField *field = value;
+  GPBUnknownFieldSet *result = context;
+
+  GPBUnknownField *copied = [field copy];
+  [result addField:copied];
+  [copied release];
+}
+
+// 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"
+
+- (id)copyWithZone:(NSZone *)zone {
+  GPBUnknownFieldSet *result = [[GPBUnknownFieldSet allocWithZone:zone] init];
+  if (fields_) {
+    CFDictionaryApplyFunction(fields_, CopyWorker, result);
+  }
+  return result;
+}
+
+- (void)dealloc {
+  if (fields_) {
+    CFRelease(fields_);
+  }
+  [super dealloc];
+}
+
+- (BOOL)isEqual:(id)object {
+  BOOL equal = NO;
+  if ([object isKindOfClass:[GPBUnknownFieldSet class]]) {
+    GPBUnknownFieldSet *set = (GPBUnknownFieldSet *)object;
+    if ((fields_ == NULL) && (set->fields_ == NULL)) {
+      equal = YES;
+    } else if ((fields_ != NULL) && (set->fields_ != NULL)) {
+      equal = CFEqual(fields_, set->fields_);
+    }
+  }
+  return equal;
+}
+
+- (NSUInteger)hash {
+  // Return the hash of the fields dictionary (or just some value).
+  if (fields_) {
+    return CFHash(fields_);
+  }
+  return (NSUInteger)[GPBUnknownFieldSet class];
+}
+
+#pragma mark - Public Methods
+
+- (BOOL)hasField:(int32_t)number {
+  ssize_t key = number;
+  return fields_ ? (CFDictionaryGetValue(fields_, (void *)key) != nil) : NO;
+}
+
+- (GPBUnknownField *)getField:(int32_t)number {
+  ssize_t key = number;
+  GPBUnknownField *result = fields_ ? CFDictionaryGetValue(fields_, (void *)key) : nil;
+  return result;
+}
+
+- (NSUInteger)countOfFields {
+  return fields_ ? CFDictionaryGetCount(fields_) : 0;
+}
+
+- (NSArray *)sortedFields {
+  if (!fields_) return [NSArray array];
+  size_t count = CFDictionaryGetCount(fields_);
+  ssize_t keys[count];
+  GPBUnknownField *values[count];
+  CFDictionaryGetKeysAndValues(fields_, (const void **)keys, (const void **)values);
+  struct GPBFieldPair {
+    ssize_t key;
+    GPBUnknownField *value;
+  } pairs[count];
+  for (size_t i = 0; i < count; ++i) {
+    pairs[i].key = keys[i];
+    pairs[i].value = values[i];
+  };
+  qsort_b(pairs, count, sizeof(struct GPBFieldPair), ^(const void *first, const void *second) {
+    const struct GPBFieldPair *a = first;
+    const struct GPBFieldPair *b = second;
+    return (a->key > b->key) ? 1 : ((a->key == b->key) ? 0 : -1);
+  });
+  for (size_t i = 0; i < count; ++i) {
+    values[i] = pairs[i].value;
+  };
+  return [NSArray arrayWithObjects:values count:count];
+}
+
+#pragma mark - Internal Methods
+
+- (void)writeToCodedOutputStream:(GPBCodedOutputStream *)output {
+  if (!fields_) return;
+  size_t count = CFDictionaryGetCount(fields_);
+  ssize_t keys[count];
+  GPBUnknownField *values[count];
+  CFDictionaryGetKeysAndValues(fields_, (const void **)keys, (const void **)values);
+  if (count > 1) {
+    struct GPBFieldPair {
+      ssize_t key;
+      GPBUnknownField *value;
+    } pairs[count];
+
+    for (size_t i = 0; i < count; ++i) {
+      pairs[i].key = keys[i];
+      pairs[i].value = values[i];
+    };
+    qsort_b(pairs, count, sizeof(struct GPBFieldPair), ^(const void *first, const void *second) {
+      const struct GPBFieldPair *a = first;
+      const struct GPBFieldPair *b = second;
+      return (a->key > b->key) ? 1 : ((a->key == b->key) ? 0 : -1);
+    });
+    for (size_t i = 0; i < count; ++i) {
+      GPBUnknownField *value = pairs[i].value;
+      [value writeToOutput:output];
+    }
+  } else {
+    [values[0] writeToOutput:output];
+  }
+}
+
+- (NSString *)description {
+  NSMutableString *description =
+      [NSMutableString stringWithFormat:@"<%@ %p>: TextFormat: {\n", [self class], self];
+  NSString *textFormat = GPBTextFormatForUnknownFieldSet(self, @"  ");
+  [description appendString:textFormat];
+  [description appendString:@"}"];
+  return description;
+}
+
+static void GPBUnknownFieldSetSerializedSize(__unused const void *key, const void *value,
+                                             void *context) {
+  GPBUnknownField *field = value;
+  size_t *result = context;
+  *result += [field serializedSize];
+}
+
+- (size_t)serializedSize {
+  size_t result = 0;
+  if (fields_) {
+    CFDictionaryApplyFunction(fields_, GPBUnknownFieldSetSerializedSize, &result);
+  }
+  return result;
+}
+
+static void GPBUnknownFieldSetWriteAsMessageSetTo(__unused const void *key, const void *value,
+                                                  void *context) {
+  GPBUnknownField *field = value;
+  GPBCodedOutputStream *output = context;
+  [field writeAsMessageSetExtensionToOutput:output];
+}
+
+- (void)writeAsMessageSetTo:(GPBCodedOutputStream *)output {
+  if (fields_) {
+    CFDictionaryApplyFunction(fields_, GPBUnknownFieldSetWriteAsMessageSetTo, output);
+  }
+}
+
+static void GPBUnknownFieldSetSerializedSizeAsMessageSet(__unused const void *key,
+                                                         const void *value, void *context) {
+  GPBUnknownField *field = value;
+  size_t *result = context;
+  *result += [field serializedSizeAsMessageSetExtension];
+}
+
+- (size_t)serializedSizeAsMessageSet {
+  size_t result = 0;
+  if (fields_) {
+    CFDictionaryApplyFunction(fields_, GPBUnknownFieldSetSerializedSizeAsMessageSet, &result);
+  }
+  return result;
+}
+
+- (NSData *)data {
+  NSMutableData *data = [NSMutableData dataWithLength:self.serializedSize];
+  GPBCodedOutputStream *output = [[GPBCodedOutputStream alloc] initWithData:data];
+  [self writeToCodedOutputStream:output];
+  [output flush];
+  [output release];
+  return data;
+}
+
+- (void)addField:(GPBUnknownField *)field {
+  int32_t number = [field number];
+  checkNumber(number);
+  if (!fields_) {
+    // Use a custom dictionary here because the keys are numbers and conversion
+    // back and forth from NSNumber isn't worth the cost.
+    fields_ =
+        CFDictionaryCreateMutable(kCFAllocatorDefault, 0, NULL, &kCFTypeDictionaryValueCallBacks);
+  }
+  ssize_t key = number;
+  CFDictionarySetValue(fields_, (const void *)key, field);
+}
+
+- (GPBUnknownField *)mutableFieldForNumber:(int32_t)number create:(BOOL)create {
+  ssize_t key = number;
+  GPBUnknownField *existing = fields_ ? CFDictionaryGetValue(fields_, (const void *)key) : nil;
+  if (!existing && create) {
+    existing = [[GPBUnknownField alloc] initWithNumber:number];
+    // This retains existing.
+    [self addField:existing];
+    [existing release];
+  }
+  return existing;
+}
+
+static void GPBUnknownFieldSetMergeUnknownFields(__unused const void *key, const void *value,
+                                                 void *context) {
+  GPBUnknownField *field = value;
+  GPBUnknownFieldSet *self = context;
+
+  int32_t number = [field number];
+  checkNumber(number);
+  GPBUnknownField *oldField = [self mutableFieldForNumber:number create:NO];
+  if (oldField) {
+    [oldField mergeFromField:field];
+  } else {
+    // Merge only comes from GPBMessage's mergeFrom:, so it means we are on
+    // mutable message and are an mutable instance, so make sure we need
+    // mutable fields.
+    GPBUnknownField *fieldCopy = [field copy];
+    [self addField:fieldCopy];
+    [fieldCopy release];
+  }
+}
+
+- (void)mergeUnknownFields:(GPBUnknownFieldSet *)other {
+  if (other && other->fields_) {
+    CFDictionaryApplyFunction(other->fields_, GPBUnknownFieldSetMergeUnknownFields, self);
+  }
+}
+
+- (void)mergeVarintField:(int32_t)number value:(int32_t)value {
+  checkNumber(number);
+  [[self mutableFieldForNumber:number create:YES] addVarint:value];
+}
+
+- (void)mergeLengthDelimited:(int32_t)fieldNum value:(NSData *)value {
+  checkNumber(fieldNum);
+  [[self mutableFieldForNumber:fieldNum create:YES] addLengthDelimited:value];
+}
+
+- (BOOL)mergeFieldFrom:(int32_t)tag input:(GPBCodedInputStream *)input {
+  NSAssert(GPBWireFormatIsValidTag(tag), @"Got passed an invalid tag");
+  int32_t number = GPBWireFormatGetTagFieldNumber(tag);
+  GPBCodedInputStreamState *state = &input->state_;
+  switch (GPBWireFormatGetTagWireType(tag)) {
+    case GPBWireFormatVarint: {
+      GPBUnknownField *field = [self mutableFieldForNumber:number create:YES];
+      [field addVarint:GPBCodedInputStreamReadInt64(state)];
+      return YES;
+    }
+    case GPBWireFormatFixed64: {
+      GPBUnknownField *field = [self mutableFieldForNumber:number create:YES];
+      [field addFixed64:GPBCodedInputStreamReadFixed64(state)];
+      return YES;
+    }
+    case GPBWireFormatLengthDelimited: {
+      NSData *data = GPBCodedInputStreamReadRetainedBytes(state);
+      GPBUnknownField *field = [self mutableFieldForNumber:number create:YES];
+      [field addLengthDelimited:data];
+      [data release];
+      return YES;
+    }
+    case GPBWireFormatStartGroup: {
+      GPBUnknownFieldSet *unknownFieldSet = [[GPBUnknownFieldSet alloc] init];
+      GPBUnknownField *field = [self mutableFieldForNumber:number create:YES];
+      [field addGroup:unknownFieldSet];
+      // The field will now retain unknownFieldSet, so go ahead and release it in case
+      // -readUnknownGroup:message: throws so it won't be leaked.
+      [unknownFieldSet release];
+      [input readUnknownGroup:number message:unknownFieldSet];
+      return YES;
+    }
+    case GPBWireFormatEndGroup:
+      return NO;
+    case GPBWireFormatFixed32: {
+      GPBUnknownField *field = [self mutableFieldForNumber:number create:YES];
+      [field addFixed32:GPBCodedInputStreamReadFixed32(state)];
+      return YES;
+    }
+  }
+}
+
+- (void)mergeFromCodedInputStream:(GPBCodedInputStream *)input {
+  while (YES) {
+    int32_t tag = GPBCodedInputStreamReadTag(&input->state_);
+    if (tag == 0 || ![self mergeFieldFrom:tag input:input]) {
+      break;
+    }
+  }
+}
+
+- (void)getTags:(int32_t *)tags {
+  if (!fields_) return;
+  size_t count = CFDictionaryGetCount(fields_);
+  ssize_t keys[count];
+  CFDictionaryGetKeysAndValues(fields_, (const void **)keys, NULL);
+  for (size_t i = 0; i < count; ++i) {
+    tags[i] = (int32_t)keys[i];
+  }
+}
+
+#pragma clang diagnostic pop
+
+@end
+
+#pragma clang diagnostic pop  // -Wdeprecated-declarations suppression