1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved.
3 // https://developers.google.com/protocol-buffers/
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
9 // * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer.
11 // * Redistributions in binary form must reproduce the above
12 // copyright notice, this list of conditions and the following disclaimer
13 // in the documentation and/or other materials provided with the
15 // * Neither the name of Google Inc. nor the names of its
16 // contributors may be used to endorse or promote products derived from
17 // this software without specific prior written permission.
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #import <Foundation/Foundation.h>
33 #import "GPBRuntimeTypes.h"
35 @class GPBEnumDescriptor;
36 @class GPBFieldDescriptor;
37 @class GPBFileDescriptor;
38 @class GPBOneofDescriptor;
40 NS_ASSUME_NONNULL_BEGIN
42 /** Syntax used in the proto file. */
43 typedef NS_ENUM(uint8_t, GPBFileSyntax) {
44 /** Unknown syntax. */
45 GPBFileSyntaxUnknown = 0,
47 GPBFileSyntaxProto2 = 2,
49 GPBFileSyntaxProto3 = 3,
52 /** Type of proto field. */
53 typedef NS_ENUM(uint8_t, GPBFieldType) {
54 /** Optional/required field. Only valid for proto2 fields. */
56 /** Repeated field. */
63 * Describes a proto message.
65 @interface GPBDescriptor : NSObject<NSCopying>
67 /** Name of the message. */
68 @property(nonatomic, readonly, copy) NSString *name;
69 /** Fields declared in the message. */
70 @property(nonatomic, readonly, strong, nullable) NSArray<GPBFieldDescriptor*> *fields;
71 /** Oneofs declared in the message. */
72 @property(nonatomic, readonly, strong, nullable) NSArray<GPBOneofDescriptor*> *oneofs;
73 /** Extension range declared for the message. */
74 @property(nonatomic, readonly, nullable) const GPBExtensionRange *extensionRanges;
75 /** Number of extension ranges declared for the message. */
76 @property(nonatomic, readonly) uint32_t extensionRangesCount;
77 /** Descriptor for the file where the message was defined. */
78 @property(nonatomic, readonly, assign) GPBFileDescriptor *file;
80 /** Whether the message is in wire format or not. */
81 @property(nonatomic, readonly, getter=isWireFormat) BOOL wireFormat;
82 /** The class of this message. */
83 @property(nonatomic, readonly) Class messageClass;
84 /** Containing message descriptor if this message is nested, or nil otherwise. */
85 @property(readonly, nullable) GPBDescriptor *containingType;
87 * Fully qualified name for this message (package.message). Can be nil if the
88 * value is unable to be computed.
90 @property(readonly, nullable) NSString *fullName;
93 * Gets the field for the given number.
95 * @param fieldNumber The number for the field to get.
97 * @return The field descriptor for the given number, or nil if not found.
99 - (nullable GPBFieldDescriptor *)fieldWithNumber:(uint32_t)fieldNumber;
102 * Gets the field for the given name.
104 * @param name The name for the field to get.
106 * @return The field descriptor for the given name, or nil if not found.
108 - (nullable GPBFieldDescriptor *)fieldWithName:(NSString *)name;
111 * Gets the oneof for the given name.
113 * @param name The name for the oneof to get.
115 * @return The oneof descriptor for the given name, or nil if not found.
117 - (nullable GPBOneofDescriptor *)oneofWithName:(NSString *)name;
122 * Describes a proto file.
124 @interface GPBFileDescriptor : NSObject
126 /** The package declared in the proto file. */
127 @property(nonatomic, readonly, copy) NSString *package;
128 /** The objc prefix declared in the proto file. */
129 @property(nonatomic, readonly, copy, nullable) NSString *objcPrefix;
130 /** The syntax of the proto file. */
131 @property(nonatomic, readonly) GPBFileSyntax syntax;
136 * Describes a oneof field.
138 @interface GPBOneofDescriptor : NSObject
139 /** Name of the oneof field. */
140 @property(nonatomic, readonly) NSString *name;
141 /** Fields declared in the oneof. */
142 @property(nonatomic, readonly) NSArray<GPBFieldDescriptor*> *fields;
145 * Gets the field for the given number.
147 * @param fieldNumber The number for the field to get.
149 * @return The field descriptor for the given number, or nil if not found.
151 - (nullable GPBFieldDescriptor *)fieldWithNumber:(uint32_t)fieldNumber;
154 * Gets the field for the given name.
156 * @param name The name for the field to get.
158 * @return The field descriptor for the given name, or nil if not found.
160 - (nullable GPBFieldDescriptor *)fieldWithName:(NSString *)name;
165 * Describes a proto field.
167 @interface GPBFieldDescriptor : NSObject
169 /** Name of the field. */
170 @property(nonatomic, readonly, copy) NSString *name;
171 /** Number associated with the field. */
172 @property(nonatomic, readonly) uint32_t number;
173 /** Data type contained in the field. */
174 @property(nonatomic, readonly) GPBDataType dataType;
175 /** Whether it has a default value or not. */
176 @property(nonatomic, readonly) BOOL hasDefaultValue;
177 /** Default value for the field. */
178 @property(nonatomic, readonly) GPBGenericValue defaultValue;
179 /** Whether this field is required. Only valid for proto2 fields. */
180 @property(nonatomic, readonly, getter=isRequired) BOOL required;
181 /** Whether this field is optional. */
182 @property(nonatomic, readonly, getter=isOptional) BOOL optional;
183 /** Type of field (single, repeated, map). */
184 @property(nonatomic, readonly) GPBFieldType fieldType;
185 /** Type of the key if the field is a map. The value's type is -fieldType. */
186 @property(nonatomic, readonly) GPBDataType mapKeyDataType;
187 /** Whether the field is packable. */
188 @property(nonatomic, readonly, getter=isPackable) BOOL packable;
190 /** The containing oneof if this field is part of one, nil otherwise. */
191 @property(nonatomic, readonly, assign, nullable) GPBOneofDescriptor *containingOneof;
193 /** Class of the message if the field is of message type. */
194 @property(nonatomic, readonly, assign, nullable) Class msgClass;
196 /** Descriptor for the enum if this field is an enum. */
197 @property(nonatomic, readonly, strong, nullable) GPBEnumDescriptor *enumDescriptor;
200 * Checks whether the given enum raw value is a valid enum value.
202 * @param value The raw enum value to check.
204 * @return YES if value is a valid enum raw value.
206 - (BOOL)isValidEnumValue:(int32_t)value;
208 /** @return Name for the text format, or nil if not known. */
209 - (nullable NSString *)textFormatName;
214 * Describes a proto enum.
216 @interface GPBEnumDescriptor : NSObject
218 /** Name of the enum. */
219 @property(nonatomic, readonly, copy) NSString *name;
220 /** Function that validates that raw values are valid enum values. */
221 @property(nonatomic, readonly) GPBEnumValidationFunc enumVerifier;
224 * Returns the enum value name for the given raw enum.
226 * @param number The raw enum value.
228 * @return The name of the enum value passed, or nil if not valid.
230 - (nullable NSString *)enumNameForValue:(int32_t)number;
233 * Gets the enum raw value for the given enum name.
235 * @param outValue A pointer where the value will be set.
236 * @param name The enum name for which to get the raw value.
238 * @return YES if a value was copied into the pointer, NO otherwise.
240 - (BOOL)getValue:(nullable int32_t *)outValue forEnumName:(NSString *)name;
243 * Returns the text format for the given raw enum value.
245 * @param number The raw enum value.
247 * @return The text format name for the raw enum value, or nil if not valid.
249 - (nullable NSString *)textFormatNameForValue:(int32_t)number;
252 * Gets the enum raw value for the given text format name.
254 * @param outValue A pointer where the value will be set.
255 * @param textFormatName The text format name for which to get the raw value.
257 * @return YES if a value was copied into the pointer, NO otherwise.
259 - (BOOL)getValue:(nullable int32_t *)outValue forEnumTextFormatName:(NSString *)textFormatName;
264 * Describes a proto extension.
266 @interface GPBExtensionDescriptor : NSObject<NSCopying>
267 /** Field number under which the extension is stored. */
268 @property(nonatomic, readonly) uint32_t fieldNumber;
269 /** The containing message class, i.e. the class extended by this extension. */
270 @property(nonatomic, readonly) Class containingMessageClass;
271 /** Data type contained in the extension. */
272 @property(nonatomic, readonly) GPBDataType dataType;
273 /** Whether the extension is repeated. */
274 @property(nonatomic, readonly, getter=isRepeated) BOOL repeated;
275 /** Whether the extension is packable. */
276 @property(nonatomic, readonly, getter=isPackable) BOOL packable;
277 /** The class of the message if the extension is of message type. */
278 @property(nonatomic, readonly, assign) Class msgClass;
279 /** The singleton name for the extension. */
280 @property(nonatomic, readonly) NSString *singletonName;
281 /** The enum descriptor if the extension is of enum type. */
282 @property(nonatomic, readonly, strong, nullable) GPBEnumDescriptor *enumDescriptor;
283 /** The default value for the extension. */
284 @property(nonatomic, readonly, nullable) id defaultValue;
288 NS_ASSUME_NONNULL_END