| // 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. |
| |
| // Author: kenton@google.com (Kenton Varda) |
| // Based on original Protocol Buffers design by |
| // Sanjay Ghemawat, Jeff Dean, and others. |
| // |
| // This file contains classes which describe a type of protocol message. |
| // You can use a message's descriptor to learn at runtime what fields |
| // it contains and what the types of those fields are. The Message |
| // interface also allows you to dynamically access and modify individual |
| // fields by passing the FieldDescriptor of the field you are interested |
| // in. |
| // |
| // Most users will not care about descriptors, because they will write |
| // code specific to certain protocol types and will simply use the classes |
| // generated by the protocol compiler directly. Advanced users who want |
| // to operate on arbitrary types (not known at compile time) may want to |
| // read descriptors in order to learn about the contents of a message. |
| // A very small number of users will want to construct their own |
| // Descriptors, either because they are implementing Message manually or |
| // because they are writing something like the protocol compiler. |
| // |
| // For an example of how you might use descriptors, see the code example |
| // at the top of message.h. |
| |
| #ifndef GOOGLE_PROTOBUF_DESCRIPTOR_H__ |
| #define GOOGLE_PROTOBUF_DESCRIPTOR_H__ |
| |
| #include <set> |
| #include <string> |
| #include <vector> |
| #include <google/protobuf/stubs/common.h> |
| |
| |
| namespace google { |
| namespace protobuf { |
| |
| // Defined in this file. |
| class Descriptor; |
| class FieldDescriptor; |
| class OneofDescriptor; |
| class EnumDescriptor; |
| class EnumValueDescriptor; |
| class ServiceDescriptor; |
| class MethodDescriptor; |
| class FileDescriptor; |
| class DescriptorDatabase; |
| class DescriptorPool; |
| |
| // Defined in descriptor.proto |
| class DescriptorProto; |
| class FieldDescriptorProto; |
| class OneofDescriptorProto; |
| class EnumDescriptorProto; |
| class EnumValueDescriptorProto; |
| class ServiceDescriptorProto; |
| class MethodDescriptorProto; |
| class FileDescriptorProto; |
| class MessageOptions; |
| class FieldOptions; |
| class EnumOptions; |
| class EnumValueOptions; |
| class ServiceOptions; |
| class MethodOptions; |
| class FileOptions; |
| class UninterpretedOption; |
| class SourceCodeInfo; |
| |
| // Defined in message.h |
| class Message; |
| |
| // Defined in descriptor.cc |
| class DescriptorBuilder; |
| class FileDescriptorTables; |
| |
| // Defined in unknown_field_set.h. |
| class UnknownField; |
| |
| // Defined in generated_message_reflection.h. |
| namespace internal { |
| class GeneratedMessageReflection; |
| } |
| |
| // NB, all indices are zero-based. |
| struct SourceLocation { |
| int start_line; |
| int end_line; |
| int start_column; |
| int end_column; |
| |
| // Doc comments found at the source location. |
| // See the comments in SourceCodeInfo.Location (descriptor.proto) for details. |
| string leading_comments; |
| string trailing_comments; |
| vector<string> leading_detached_comments; |
| }; |
| |
| // Options when generating machine-parsable output from a descriptor with |
| // DebugString(). |
| struct DebugStringOptions { |
| // include original user comments as recorded in SourceLocation entries. N.B. |
| // that this must be |false| by default: several other pieces of code (for |
| // example, the C++ code generation for fields in the proto compiler) rely on |
| // DebugString() output being unobstructed by user comments. |
| bool include_comments; |
| |
| DebugStringOptions() |
| : include_comments(false) |
| {} |
| }; |
| |
| // Describes a type of protocol message, or a particular group within a |
| // message. To obtain the Descriptor for a given message object, call |
| // Message::GetDescriptor(). Generated message classes also have a |
| // static method called descriptor() which returns the type's descriptor. |
| // Use DescriptorPool to construct your own descriptors. |
| class LIBPROTOBUF_EXPORT Descriptor { |
| public: |
| // The name of the message type, not including its scope. |
| const string& name() const; |
| |
| // The fully-qualified name of the message type, scope delimited by |
| // periods. For example, message type "Foo" which is declared in package |
| // "bar" has full name "bar.Foo". If a type "Baz" is nested within |
| // Foo, Baz's full_name is "bar.Foo.Baz". To get only the part that |
| // comes after the last '.', use name(). |
| const string& full_name() const; |
| |
| // Index of this descriptor within the file or containing type's message |
| // type array. |
| int index() const; |
| |
| // The .proto file in which this message type was defined. Never NULL. |
| const FileDescriptor* file() const; |
| |
| // If this Descriptor describes a nested type, this returns the type |
| // in which it is nested. Otherwise, returns NULL. |
| const Descriptor* containing_type() const; |
| |
| // Get options for this message type. These are specified in the .proto file |
| // by placing lines like "option foo = 1234;" in the message definition. |
| // Allowed options are defined by MessageOptions in |
| // google/protobuf/descriptor.proto, and any available extensions of that |
| // message. |
| const MessageOptions& options() const; |
| |
| // Write the contents of this Descriptor into the given DescriptorProto. |
| // The target DescriptorProto must be clear before calling this; if it |
| // isn't, the result may be garbage. |
| void CopyTo(DescriptorProto* proto) const; |
| |
| // Write the contents of this decriptor in a human-readable form. Output |
| // will be suitable for re-parsing. |
| string DebugString() const; |
| |
| // Similar to DebugString(), but additionally takes options (e.g., |
| // include original user comments in output). |
| string DebugStringWithOptions(const DebugStringOptions& options) const; |
| |
| // Returns true if this is a placeholder for an unknown type. This will |
| // only be the case if this descriptor comes from a DescriptorPool |
| // with AllowUnknownDependencies() set. |
| bool is_placeholder() const; |
| |
| // Field stuff ----------------------------------------------------- |
| |
| // The number of fields in this message type. |
| int field_count() const; |
| // Gets a field by index, where 0 <= index < field_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const FieldDescriptor* field(int index) const; |
| |
| // Looks up a field by declared tag number. Returns NULL if no such field |
| // exists. |
| const FieldDescriptor* FindFieldByNumber(int number) const; |
| // Looks up a field by name. Returns NULL if no such field exists. |
| const FieldDescriptor* FindFieldByName(const string& name) const; |
| |
| // Looks up a field by lowercased name (as returned by lowercase_name()). |
| // This lookup may be ambiguous if multiple field names differ only by case, |
| // in which case the field returned is chosen arbitrarily from the matches. |
| const FieldDescriptor* FindFieldByLowercaseName( |
| const string& lowercase_name) const; |
| |
| // Looks up a field by camel-case name (as returned by camelcase_name()). |
| // This lookup may be ambiguous if multiple field names differ in a way that |
| // leads them to have identical camel-case names, in which case the field |
| // returned is chosen arbitrarily from the matches. |
| const FieldDescriptor* FindFieldByCamelcaseName( |
| const string& camelcase_name) const; |
| |
| // The number of oneofs in this message type. |
| int oneof_decl_count() const; |
| // Get a oneof by index, where 0 <= index < oneof_decl_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const OneofDescriptor* oneof_decl(int index) const; |
| |
| // Looks up a oneof by name. Returns NULL if no such oneof exists. |
| const OneofDescriptor* FindOneofByName(const string& name) const; |
| |
| // Nested type stuff ----------------------------------------------- |
| |
| // The number of nested types in this message type. |
| int nested_type_count() const; |
| // Gets a nested type by index, where 0 <= index < nested_type_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const Descriptor* nested_type(int index) const; |
| |
| // Looks up a nested type by name. Returns NULL if no such nested type |
| // exists. |
| const Descriptor* FindNestedTypeByName(const string& name) const; |
| |
| // Enum stuff ------------------------------------------------------ |
| |
| // The number of enum types in this message type. |
| int enum_type_count() const; |
| // Gets an enum type by index, where 0 <= index < enum_type_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const EnumDescriptor* enum_type(int index) const; |
| |
| // Looks up an enum type by name. Returns NULL if no such enum type exists. |
| const EnumDescriptor* FindEnumTypeByName(const string& name) const; |
| |
| // Looks up an enum value by name, among all enum types in this message. |
| // Returns NULL if no such value exists. |
| const EnumValueDescriptor* FindEnumValueByName(const string& name) const; |
| |
| // Extensions ------------------------------------------------------ |
| |
| // A range of field numbers which are designated for third-party |
| // extensions. |
| struct ExtensionRange { |
| int start; // inclusive |
| int end; // exclusive |
| }; |
| |
| // The number of extension ranges in this message type. |
| int extension_range_count() const; |
| // Gets an extension range by index, where 0 <= index < |
| // extension_range_count(). These are returned in the order they were defined |
| // in the .proto file. |
| const ExtensionRange* extension_range(int index) const; |
| |
| // Returns true if the number is in one of the extension ranges. |
| bool IsExtensionNumber(int number) const; |
| |
| // Returns NULL if no extension range contains the given number. |
| const ExtensionRange* FindExtensionRangeContainingNumber(int number) const; |
| |
| // The number of extensions -- extending *other* messages -- that were |
| // defined nested within this message type's scope. |
| int extension_count() const; |
| // Get an extension by index, where 0 <= index < extension_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const FieldDescriptor* extension(int index) const; |
| |
| // Looks up a named extension (which extends some *other* message type) |
| // defined within this message type's scope. |
| const FieldDescriptor* FindExtensionByName(const string& name) const; |
| |
| // Similar to FindFieldByLowercaseName(), but finds extensions defined within |
| // this message type's scope. |
| const FieldDescriptor* FindExtensionByLowercaseName(const string& name) const; |
| |
| // Similar to FindFieldByCamelcaseName(), but finds extensions defined within |
| // this message type's scope. |
| const FieldDescriptor* FindExtensionByCamelcaseName(const string& name) const; |
| |
| // Source Location --------------------------------------------------- |
| |
| // Updates |*out_location| to the source location of the complete |
| // extent of this message declaration. Returns false and leaves |
| // |*out_location| unchanged iff location information was not available. |
| bool GetSourceLocation(SourceLocation* out_location) const; |
| |
| private: |
| typedef MessageOptions OptionsType; |
| |
| // Internal version of DebugString; controls the level of indenting for |
| // correct depth. Takes |options| to control debug-string options, and |
| // |include_opening_clause| to indicate whether the "message ... " part of the |
| // clause has already been generated (this varies depending on context). |
| void DebugString(int depth, string *contents, |
| const DebugStringOptions& options, |
| bool include_opening_clause) const; |
| |
| // Walks up the descriptor tree to generate the source location path |
| // to this descriptor from the file root. |
| void GetLocationPath(std::vector<int>* output) const; |
| |
| const string* name_; |
| const string* full_name_; |
| const FileDescriptor* file_; |
| const Descriptor* containing_type_; |
| const MessageOptions* options_; |
| |
| // True if this is a placeholder for an unknown type. |
| bool is_placeholder_; |
| // True if this is a placeholder and the type name wasn't fully-qualified. |
| bool is_unqualified_placeholder_; |
| |
| int field_count_; |
| FieldDescriptor* fields_; |
| int oneof_decl_count_; |
| OneofDescriptor* oneof_decls_; |
| int nested_type_count_; |
| Descriptor* nested_types_; |
| int enum_type_count_; |
| EnumDescriptor* enum_types_; |
| int extension_range_count_; |
| ExtensionRange* extension_ranges_; |
| int extension_count_; |
| FieldDescriptor* extensions_; |
| // IMPORTANT: If you add a new field, make sure to search for all instances |
| // of Allocate<Descriptor>() and AllocateArray<Descriptor>() in descriptor.cc |
| // and update them to initialize the field. |
| |
| // Must be constructed using DescriptorPool. |
| Descriptor() {} |
| friend class DescriptorBuilder; |
| friend class EnumDescriptor; |
| friend class FieldDescriptor; |
| friend class OneofDescriptor; |
| friend class MethodDescriptor; |
| friend class FileDescriptor; |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(Descriptor); |
| }; |
| |
| // Describes a single field of a message. To get the descriptor for a given |
| // field, first get the Descriptor for the message in which it is defined, |
| // then call Descriptor::FindFieldByName(). To get a FieldDescriptor for |
| // an extension, do one of the following: |
| // - Get the Descriptor or FileDescriptor for its containing scope, then |
| // call Descriptor::FindExtensionByName() or |
| // FileDescriptor::FindExtensionByName(). |
| // - Given a DescriptorPool, call DescriptorPool::FindExtensionByNumber(). |
| // - Given a Reflection for a message object, call |
| // Reflection::FindKnownExtensionByName() or |
| // Reflection::FindKnownExtensionByNumber(). |
| // Use DescriptorPool to construct your own descriptors. |
| class LIBPROTOBUF_EXPORT FieldDescriptor { |
| public: |
| // Identifies a field type. 0 is reserved for errors. The order is weird |
| // for historical reasons. Types 12 and up are new in proto2. |
| enum Type { |
| TYPE_DOUBLE = 1, // double, exactly eight bytes on the wire. |
| TYPE_FLOAT = 2, // float, exactly four bytes on the wire. |
| TYPE_INT64 = 3, // int64, varint on the wire. Negative numbers |
| // take 10 bytes. Use TYPE_SINT64 if negative |
| // values are likely. |
| TYPE_UINT64 = 4, // uint64, varint on the wire. |
| TYPE_INT32 = 5, // int32, varint on the wire. Negative numbers |
| // take 10 bytes. Use TYPE_SINT32 if negative |
| // values are likely. |
| TYPE_FIXED64 = 6, // uint64, exactly eight bytes on the wire. |
| TYPE_FIXED32 = 7, // uint32, exactly four bytes on the wire. |
| TYPE_BOOL = 8, // bool, varint on the wire. |
| TYPE_STRING = 9, // UTF-8 text. |
| TYPE_GROUP = 10, // Tag-delimited message. Deprecated. |
| TYPE_MESSAGE = 11, // Length-delimited message. |
| |
| TYPE_BYTES = 12, // Arbitrary byte array. |
| TYPE_UINT32 = 13, // uint32, varint on the wire |
| TYPE_ENUM = 14, // Enum, varint on the wire |
| TYPE_SFIXED32 = 15, // int32, exactly four bytes on the wire |
| TYPE_SFIXED64 = 16, // int64, exactly eight bytes on the wire |
| TYPE_SINT32 = 17, // int32, ZigZag-encoded varint on the wire |
| TYPE_SINT64 = 18, // int64, ZigZag-encoded varint on the wire |
| |
| MAX_TYPE = 18, // Constant useful for defining lookup tables |
| // indexed by Type. |
| }; |
| |
| // Specifies the C++ data type used to represent the field. There is a |
| // fixed mapping from Type to CppType where each Type maps to exactly one |
| // CppType. 0 is reserved for errors. |
| enum CppType { |
| CPPTYPE_INT32 = 1, // TYPE_INT32, TYPE_SINT32, TYPE_SFIXED32 |
| CPPTYPE_INT64 = 2, // TYPE_INT64, TYPE_SINT64, TYPE_SFIXED64 |
| CPPTYPE_UINT32 = 3, // TYPE_UINT32, TYPE_FIXED32 |
| CPPTYPE_UINT64 = 4, // TYPE_UINT64, TYPE_FIXED64 |
| CPPTYPE_DOUBLE = 5, // TYPE_DOUBLE |
| CPPTYPE_FLOAT = 6, // TYPE_FLOAT |
| CPPTYPE_BOOL = 7, // TYPE_BOOL |
| CPPTYPE_ENUM = 8, // TYPE_ENUM |
| CPPTYPE_STRING = 9, // TYPE_STRING, TYPE_BYTES |
| CPPTYPE_MESSAGE = 10, // TYPE_MESSAGE, TYPE_GROUP |
| |
| MAX_CPPTYPE = 10, // Constant useful for defining lookup tables |
| // indexed by CppType. |
| }; |
| |
| // Identifies whether the field is optional, required, or repeated. 0 is |
| // reserved for errors. |
| enum Label { |
| LABEL_OPTIONAL = 1, // optional |
| LABEL_REQUIRED = 2, // required |
| LABEL_REPEATED = 3, // repeated |
| |
| MAX_LABEL = 3, // Constant useful for defining lookup tables |
| // indexed by Label. |
| }; |
| |
| // Valid field numbers are positive integers up to kMaxNumber. |
| static const int kMaxNumber = (1 << 29) - 1; |
| |
| // First field number reserved for the protocol buffer library implementation. |
| // Users may not declare fields that use reserved numbers. |
| static const int kFirstReservedNumber = 19000; |
| // Last field number reserved for the protocol buffer library implementation. |
| // Users may not declare fields that use reserved numbers. |
| static const int kLastReservedNumber = 19999; |
| |
| const string& name() const; // Name of this field within the message. |
| const string& full_name() const; // Fully-qualified name of the field. |
| const FileDescriptor* file() const;// File in which this field was defined. |
| bool is_extension() const; // Is this an extension field? |
| int number() const; // Declared tag number. |
| |
| // Same as name() except converted to lower-case. This (and especially the |
| // FindFieldByLowercaseName() method) can be useful when parsing formats |
| // which prefer to use lowercase naming style. (Although, technically |
| // field names should be lowercased anyway according to the protobuf style |
| // guide, so this only makes a difference when dealing with old .proto files |
| // which do not follow the guide.) |
| const string& lowercase_name() const; |
| |
| // Same as name() except converted to camel-case. In this conversion, any |
| // time an underscore appears in the name, it is removed and the next |
| // letter is capitalized. Furthermore, the first letter of the name is |
| // lower-cased. Examples: |
| // FooBar -> fooBar |
| // foo_bar -> fooBar |
| // fooBar -> fooBar |
| // This (and especially the FindFieldByCamelcaseName() method) can be useful |
| // when parsing formats which prefer to use camel-case naming style. |
| const string& camelcase_name() const; |
| |
| Type type() const; // Declared type of this field. |
| const char* type_name() const; // Name of the declared type. |
| CppType cpp_type() const; // C++ type of this field. |
| const char* cpp_type_name() const; // Name of the C++ type. |
| Label label() const; // optional/required/repeated |
| |
| bool is_required() const; // shorthand for label() == LABEL_REQUIRED |
| bool is_optional() const; // shorthand for label() == LABEL_OPTIONAL |
| bool is_repeated() const; // shorthand for label() == LABEL_REPEATED |
| bool is_packable() const; // shorthand for is_repeated() && |
| // IsTypePackable(type()) |
| bool is_packed() const; // shorthand for is_packable() && |
| // options().packed() |
| bool is_map() const; // shorthand for type() == TYPE_MESSAGE && |
| // message_type()->options().map_entry() |
| |
| // Index of this field within the message's field array, or the file or |
| // extension scope's extensions array. |
| int index() const; |
| |
| // Does this field have an explicitly-declared default value? |
| bool has_default_value() const; |
| |
| // Get the field default value if cpp_type() == CPPTYPE_INT32. If no |
| // explicit default was defined, the default is 0. |
| int32 default_value_int32() const; |
| // Get the field default value if cpp_type() == CPPTYPE_INT64. If no |
| // explicit default was defined, the default is 0. |
| int64 default_value_int64() const; |
| // Get the field default value if cpp_type() == CPPTYPE_UINT32. If no |
| // explicit default was defined, the default is 0. |
| uint32 default_value_uint32() const; |
| // Get the field default value if cpp_type() == CPPTYPE_UINT64. If no |
| // explicit default was defined, the default is 0. |
| uint64 default_value_uint64() const; |
| // Get the field default value if cpp_type() == CPPTYPE_FLOAT. If no |
| // explicit default was defined, the default is 0.0. |
| float default_value_float() const; |
| // Get the field default value if cpp_type() == CPPTYPE_DOUBLE. If no |
| // explicit default was defined, the default is 0.0. |
| double default_value_double() const; |
| // Get the field default value if cpp_type() == CPPTYPE_BOOL. If no |
| // explicit default was defined, the default is false. |
| bool default_value_bool() const; |
| // Get the field default value if cpp_type() == CPPTYPE_ENUM. If no |
| // explicit default was defined, the default is the first value defined |
| // in the enum type (all enum types are required to have at least one value). |
| // This never returns NULL. |
| const EnumValueDescriptor* default_value_enum() const; |
| // Get the field default value if cpp_type() == CPPTYPE_STRING. If no |
| // explicit default was defined, the default is the empty string. |
| const string& default_value_string() const; |
| |
| // The Descriptor for the message of which this is a field. For extensions, |
| // this is the extended type. Never NULL. |
| const Descriptor* containing_type() const; |
| |
| // If the field is a member of a oneof, this is the one, otherwise this is |
| // NULL. |
| const OneofDescriptor* containing_oneof() const; |
| |
| // If the field is a member of a oneof, returns the index in that oneof. |
| int index_in_oneof() const; |
| |
| // An extension may be declared within the scope of another message. If this |
| // field is an extension (is_extension() is true), then extension_scope() |
| // returns that message, or NULL if the extension was declared at global |
| // scope. If this is not an extension, extension_scope() is undefined (may |
| // assert-fail). |
| const Descriptor* extension_scope() const; |
| |
| // If type is TYPE_MESSAGE or TYPE_GROUP, returns a descriptor for the |
| // message or the group type. Otherwise, returns null. |
| const Descriptor* message_type() const; |
| // If type is TYPE_ENUM, returns a descriptor for the enum. Otherwise, |
| // returns null. |
| const EnumDescriptor* enum_type() const; |
| |
| // Get the FieldOptions for this field. This includes things listed in |
| // square brackets after the field definition. E.g., the field: |
| // optional string text = 1 [ctype=CORD]; |
| // has the "ctype" option set. Allowed options are defined by FieldOptions |
| // in google/protobuf/descriptor.proto, and any available extensions of that |
| // message. |
| const FieldOptions& options() const; |
| |
| // See Descriptor::CopyTo(). |
| void CopyTo(FieldDescriptorProto* proto) const; |
| |
| // See Descriptor::DebugString(). |
| string DebugString() const; |
| |
| // See Descriptor::DebugStringWithOptions(). |
| string DebugStringWithOptions(const DebugStringOptions& options) const; |
| |
| // Helper method to get the CppType for a particular Type. |
| static CppType TypeToCppType(Type type); |
| |
| // Helper method to get the name of a Type. |
| static const char* TypeName(Type type); |
| |
| // Helper method to get the name of a CppType. |
| static const char* CppTypeName(CppType cpp_type); |
| |
| // Return true iff [packed = true] is valid for fields of this type. |
| static inline bool IsTypePackable(Type field_type); |
| |
| // Source Location --------------------------------------------------- |
| |
| // Updates |*out_location| to the source location of the complete |
| // extent of this field declaration. Returns false and leaves |
| // |*out_location| unchanged iff location information was not available. |
| bool GetSourceLocation(SourceLocation* out_location) const; |
| |
| private: |
| typedef FieldOptions OptionsType; |
| |
| // See Descriptor::DebugString(). |
| enum PrintLabelFlag { PRINT_LABEL, OMIT_LABEL }; |
| void DebugString(int depth, PrintLabelFlag print_label_flag, |
| string* contents, const DebugStringOptions& options) const; |
| |
| // formats the default value appropriately and returns it as a string. |
| // Must have a default value to call this. If quote_string_type is true, then |
| // types of CPPTYPE_STRING whill be surrounded by quotes and CEscaped. |
| string DefaultValueAsString(bool quote_string_type) const; |
| |
| // Helper function that returns the field type name for DebugString. |
| string FieldTypeNameDebugString() const; |
| |
| // Walks up the descriptor tree to generate the source location path |
| // to this descriptor from the file root. |
| void GetLocationPath(std::vector<int>* output) const; |
| |
| const string* name_; |
| const string* full_name_; |
| const string* lowercase_name_; |
| const string* camelcase_name_; |
| const FileDescriptor* file_; |
| int number_; |
| Type type_; |
| Label label_; |
| bool is_extension_; |
| int index_in_oneof_; |
| const Descriptor* containing_type_; |
| const OneofDescriptor* containing_oneof_; |
| const Descriptor* extension_scope_; |
| const Descriptor* message_type_; |
| const EnumDescriptor* enum_type_; |
| const FieldOptions* options_; |
| // IMPORTANT: If you add a new field, make sure to search for all instances |
| // of Allocate<FieldDescriptor>() and AllocateArray<FieldDescriptor>() in |
| // descriptor.cc and update them to initialize the field. |
| |
| bool has_default_value_; |
| union { |
| int32 default_value_int32_; |
| int64 default_value_int64_; |
| uint32 default_value_uint32_; |
| uint64 default_value_uint64_; |
| float default_value_float_; |
| double default_value_double_; |
| bool default_value_bool_; |
| |
| const EnumValueDescriptor* default_value_enum_; |
| const string* default_value_string_; |
| }; |
| |
| static const CppType kTypeToCppTypeMap[MAX_TYPE + 1]; |
| |
| static const char * const kTypeToName[MAX_TYPE + 1]; |
| |
| static const char * const kCppTypeToName[MAX_CPPTYPE + 1]; |
| |
| static const char * const kLabelToName[MAX_LABEL + 1]; |
| |
| // Must be constructed using DescriptorPool. |
| FieldDescriptor() {} |
| friend class DescriptorBuilder; |
| friend class FileDescriptor; |
| friend class Descriptor; |
| friend class OneofDescriptor; |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(FieldDescriptor); |
| }; |
| |
| // Describes a oneof defined in a message type. |
| class LIBPROTOBUF_EXPORT OneofDescriptor { |
| public: |
| const string& name() const; // Name of this oneof. |
| const string& full_name() const; // Fully-qualified name of the oneof. |
| |
| // Index of this oneof within the message's oneof array. |
| int index() const; |
| |
| // The Descriptor for the message containing this oneof. |
| const Descriptor* containing_type() const; |
| |
| // The number of (non-extension) fields which are members of this oneof. |
| int field_count() const; |
| // Get a member of this oneof, in the order in which they were declared in the |
| // .proto file. Does not include extensions. |
| const FieldDescriptor* field(int index) const; |
| |
| // See Descriptor::CopyTo(). |
| void CopyTo(OneofDescriptorProto* proto) const; |
| |
| // See Descriptor::DebugString(). |
| string DebugString() const; |
| |
| // See Descriptor::DebugStringWithOptions(). |
| string DebugStringWithOptions(const DebugStringOptions& options) const; |
| |
| // Source Location --------------------------------------------------- |
| |
| // Updates |*out_location| to the source location of the complete |
| // extent of this oneof declaration. Returns false and leaves |
| // |*out_location| unchanged iff location information was not available. |
| bool GetSourceLocation(SourceLocation* out_location) const; |
| |
| private: |
| // See Descriptor::DebugString(). |
| void DebugString(int depth, string* contents, |
| const DebugStringOptions& options) const; |
| |
| // Walks up the descriptor tree to generate the source location path |
| // to this descriptor from the file root. |
| void GetLocationPath(std::vector<int>* output) const; |
| |
| const string* name_; |
| const string* full_name_; |
| const Descriptor* containing_type_; |
| bool is_extendable_; |
| int field_count_; |
| const FieldDescriptor** fields_; |
| // IMPORTANT: If you add a new field, make sure to search for all instances |
| // of Allocate<OneofDescriptor>() and AllocateArray<OneofDescriptor>() |
| // in descriptor.cc and update them to initialize the field. |
| |
| // Must be constructed using DescriptorPool. |
| OneofDescriptor() {} |
| friend class DescriptorBuilder; |
| friend class Descriptor; |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(OneofDescriptor); |
| }; |
| |
| // Describes an enum type defined in a .proto file. To get the EnumDescriptor |
| // for a generated enum type, call TypeName_descriptor(). Use DescriptorPool |
| // to construct your own descriptors. |
| class LIBPROTOBUF_EXPORT EnumDescriptor { |
| public: |
| // The name of this enum type in the containing scope. |
| const string& name() const; |
| |
| // The fully-qualified name of the enum type, scope delimited by periods. |
| const string& full_name() const; |
| |
| // Index of this enum within the file or containing message's enum array. |
| int index() const; |
| |
| // The .proto file in which this enum type was defined. Never NULL. |
| const FileDescriptor* file() const; |
| |
| // The number of values for this EnumDescriptor. Guaranteed to be greater |
| // than zero. |
| int value_count() const; |
| // Gets a value by index, where 0 <= index < value_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const EnumValueDescriptor* value(int index) const; |
| |
| // Looks up a value by name. Returns NULL if no such value exists. |
| const EnumValueDescriptor* FindValueByName(const string& name) const; |
| // Looks up a value by number. Returns NULL if no such value exists. If |
| // multiple values have this number, the first one defined is returned. |
| const EnumValueDescriptor* FindValueByNumber(int number) const; |
| |
| // If this enum type is nested in a message type, this is that message type. |
| // Otherwise, NULL. |
| const Descriptor* containing_type() const; |
| |
| // Get options for this enum type. These are specified in the .proto file by |
| // placing lines like "option foo = 1234;" in the enum definition. Allowed |
| // options are defined by EnumOptions in google/protobuf/descriptor.proto, |
| // and any available extensions of that message. |
| const EnumOptions& options() const; |
| |
| // See Descriptor::CopyTo(). |
| void CopyTo(EnumDescriptorProto* proto) const; |
| |
| // See Descriptor::DebugString(). |
| string DebugString() const; |
| |
| // See Descriptor::DebugStringWithOptions(). |
| string DebugStringWithOptions(const DebugStringOptions& options) const; |
| |
| |
| // Returns true if this is a placeholder for an unknown enum. This will |
| // only be the case if this descriptor comes from a DescriptorPool |
| // with AllowUnknownDependencies() set. |
| bool is_placeholder() const; |
| |
| // Source Location --------------------------------------------------- |
| |
| // Updates |*out_location| to the source location of the complete |
| // extent of this enum declaration. Returns false and leaves |
| // |*out_location| unchanged iff location information was not available. |
| bool GetSourceLocation(SourceLocation* out_location) const; |
| |
| private: |
| typedef EnumOptions OptionsType; |
| |
| // Looks up a value by number. If the value does not exist, dynamically |
| // creates a new EnumValueDescriptor for that value, assuming that it was |
| // unknown. If a new descriptor is created, this is done in a thread-safe way, |
| // and future calls will return the same value descriptor pointer. |
| // |
| // This is private but is used by GeneratedMessageReflection (which is |
| // friended below) to return a valid EnumValueDescriptor from GetEnum() when |
| // this feature is enabled. |
| const EnumValueDescriptor* |
| FindValueByNumberCreatingIfUnknown(int number) const; |
| |
| |
| // See Descriptor::DebugString(). |
| void DebugString(int depth, string *contents, |
| const DebugStringOptions& options) const; |
| |
| // Walks up the descriptor tree to generate the source location path |
| // to this descriptor from the file root. |
| void GetLocationPath(std::vector<int>* output) const; |
| |
| const string* name_; |
| const string* full_name_; |
| const FileDescriptor* file_; |
| const Descriptor* containing_type_; |
| const EnumOptions* options_; |
| |
| // True if this is a placeholder for an unknown type. |
| bool is_placeholder_; |
| // True if this is a placeholder and the type name wasn't fully-qualified. |
| bool is_unqualified_placeholder_; |
| |
| int value_count_; |
| EnumValueDescriptor* values_; |
| // IMPORTANT: If you add a new field, make sure to search for all instances |
| // of Allocate<EnumDescriptor>() and AllocateArray<EnumDescriptor>() in |
| // descriptor.cc and update them to initialize the field. |
| |
| // Must be constructed using DescriptorPool. |
| EnumDescriptor() {} |
| friend class DescriptorBuilder; |
| friend class Descriptor; |
| friend class FieldDescriptor; |
| friend class EnumValueDescriptor; |
| friend class FileDescriptor; |
| friend class LIBPROTOBUF_EXPORT internal::GeneratedMessageReflection; |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(EnumDescriptor); |
| }; |
| |
| // Describes an individual enum constant of a particular type. To get the |
| // EnumValueDescriptor for a given enum value, first get the EnumDescriptor |
| // for its type, then use EnumDescriptor::FindValueByName() or |
| // EnumDescriptor::FindValueByNumber(). Use DescriptorPool to construct |
| // your own descriptors. |
| class LIBPROTOBUF_EXPORT EnumValueDescriptor { |
| public: |
| const string& name() const; // Name of this enum constant. |
| int index() const; // Index within the enums's Descriptor. |
| int number() const; // Numeric value of this enum constant. |
| |
| // The full_name of an enum value is a sibling symbol of the enum type. |
| // e.g. the full name of FieldDescriptorProto::TYPE_INT32 is actually |
| // "google.protobuf.FieldDescriptorProto.TYPE_INT32", NOT |
| // "google.protobuf.FieldDescriptorProto.Type.TYPE_INT32". This is to conform |
| // with C++ scoping rules for enums. |
| const string& full_name() const; |
| |
| // The type of this value. Never NULL. |
| const EnumDescriptor* type() const; |
| |
| // Get options for this enum value. These are specified in the .proto file |
| // by adding text like "[foo = 1234]" after an enum value definition. |
| // Allowed options are defined by EnumValueOptions in |
| // google/protobuf/descriptor.proto, and any available extensions of that |
| // message. |
| const EnumValueOptions& options() const; |
| |
| // See Descriptor::CopyTo(). |
| void CopyTo(EnumValueDescriptorProto* proto) const; |
| |
| // See Descriptor::DebugString(). |
| string DebugString() const; |
| |
| // See Descriptor::DebugStringWithOptions(). |
| string DebugStringWithOptions(const DebugStringOptions& options) const; |
| |
| |
| // Source Location --------------------------------------------------- |
| |
| // Updates |*out_location| to the source location of the complete |
| // extent of this enum value declaration. Returns false and leaves |
| // |*out_location| unchanged iff location information was not available. |
| bool GetSourceLocation(SourceLocation* out_location) const; |
| |
| private: |
| typedef EnumValueOptions OptionsType; |
| |
| // See Descriptor::DebugString(). |
| void DebugString(int depth, string *contents, |
| const DebugStringOptions& options) const; |
| |
| // Walks up the descriptor tree to generate the source location path |
| // to this descriptor from the file root. |
| void GetLocationPath(std::vector<int>* output) const; |
| |
| const string* name_; |
| const string* full_name_; |
| int number_; |
| const EnumDescriptor* type_; |
| const EnumValueOptions* options_; |
| // IMPORTANT: If you add a new field, make sure to search for all instances |
| // of Allocate<EnumValueDescriptor>() and AllocateArray<EnumValueDescriptor>() |
| // in descriptor.cc and update them to initialize the field. |
| |
| // Must be constructed using DescriptorPool. |
| EnumValueDescriptor() {} |
| friend class DescriptorBuilder; |
| friend class EnumDescriptor; |
| friend class FileDescriptorTables; |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(EnumValueDescriptor); |
| }; |
| |
| // Describes an RPC service. To get the ServiceDescriptor for a service, |
| // call Service::GetDescriptor(). Generated service classes also have a |
| // static method called descriptor() which returns the type's |
| // ServiceDescriptor. Use DescriptorPool to construct your own descriptors. |
| class LIBPROTOBUF_EXPORT ServiceDescriptor { |
| public: |
| // The name of the service, not including its containing scope. |
| const string& name() const; |
| // The fully-qualified name of the service, scope delimited by periods. |
| const string& full_name() const; |
| // Index of this service within the file's services array. |
| int index() const; |
| |
| // The .proto file in which this service was defined. Never NULL. |
| const FileDescriptor* file() const; |
| |
| // Get options for this service type. These are specified in the .proto file |
| // by placing lines like "option foo = 1234;" in the service definition. |
| // Allowed options are defined by ServiceOptions in |
| // google/protobuf/descriptor.proto, and any available extensions of that |
| // message. |
| const ServiceOptions& options() const; |
| |
| // The number of methods this service defines. |
| int method_count() const; |
| // Gets a MethodDescriptor by index, where 0 <= index < method_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const MethodDescriptor* method(int index) const; |
| |
| // Look up a MethodDescriptor by name. |
| const MethodDescriptor* FindMethodByName(const string& name) const; |
| // See Descriptor::CopyTo(). |
| void CopyTo(ServiceDescriptorProto* proto) const; |
| |
| // See Descriptor::DebugString(). |
| string DebugString() const; |
| |
| // See Descriptor::DebugStringWithOptions(). |
| string DebugStringWithOptions(const DebugStringOptions& options) const; |
| |
| |
| // Source Location --------------------------------------------------- |
| |
| // Updates |*out_location| to the source location of the complete |
| // extent of this service declaration. Returns false and leaves |
| // |*out_location| unchanged iff location information was not available. |
| bool GetSourceLocation(SourceLocation* out_location) const; |
| |
| private: |
| typedef ServiceOptions OptionsType; |
| |
| // See Descriptor::DebugString(). |
| void DebugString(string *contents, const DebugStringOptions& options) const; |
| |
| // Walks up the descriptor tree to generate the source location path |
| // to this descriptor from the file root. |
| void GetLocationPath(std::vector<int>* output) const; |
| |
| const string* name_; |
| const string* full_name_; |
| const FileDescriptor* file_; |
| const ServiceOptions* options_; |
| int method_count_; |
| MethodDescriptor* methods_; |
| // IMPORTANT: If you add a new field, make sure to search for all instances |
| // of Allocate<ServiceDescriptor>() and AllocateArray<ServiceDescriptor>() in |
| // descriptor.cc and update them to initialize the field. |
| |
| // Must be constructed using DescriptorPool. |
| ServiceDescriptor() {} |
| friend class DescriptorBuilder; |
| friend class FileDescriptor; |
| friend class MethodDescriptor; |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ServiceDescriptor); |
| }; |
| |
| // Describes an individual service method. To obtain a MethodDescriptor given |
| // a service, first get its ServiceDescriptor, then call |
| // ServiceDescriptor::FindMethodByName(). Use DescriptorPool to construct your |
| // own descriptors. |
| class LIBPROTOBUF_EXPORT MethodDescriptor { |
| public: |
| // Name of this method, not including containing scope. |
| const string& name() const; |
| // The fully-qualified name of the method, scope delimited by periods. |
| const string& full_name() const; |
| // Index within the service's Descriptor. |
| int index() const; |
| |
| // Gets the service to which this method belongs. Never NULL. |
| const ServiceDescriptor* service() const; |
| |
| // Gets the type of protocol message which this method accepts as input. |
| const Descriptor* input_type() const; |
| // Gets the type of protocol message which this message produces as output. |
| const Descriptor* output_type() const; |
| |
| // Gets whether the client streams multiple requests. |
| bool client_streaming() const; |
| // Gets whether the server streams multiple responses. |
| bool server_streaming() const; |
| |
| // Get options for this method. These are specified in the .proto file by |
| // placing lines like "option foo = 1234;" in curly-braces after a method |
| // declaration. Allowed options are defined by MethodOptions in |
| // google/protobuf/descriptor.proto, and any available extensions of that |
| // message. |
| const MethodOptions& options() const; |
| |
| // See Descriptor::CopyTo(). |
| void CopyTo(MethodDescriptorProto* proto) const; |
| |
| // See Descriptor::DebugString(). |
| string DebugString() const; |
| |
| // See Descriptor::DebugStringWithOptions(). |
| string DebugStringWithOptions(const DebugStringOptions& options) const; |
| |
| |
| // Source Location --------------------------------------------------- |
| |
| // Updates |*out_location| to the source location of the complete |
| // extent of this method declaration. Returns false and leaves |
| // |*out_location| unchanged iff location information was not available. |
| bool GetSourceLocation(SourceLocation* out_location) const; |
| |
| private: |
| typedef MethodOptions OptionsType; |
| |
| // See Descriptor::DebugString(). |
| void DebugString(int depth, string *contents, |
| const DebugStringOptions& options) const; |
| |
| // Walks up the descriptor tree to generate the source location path |
| // to this descriptor from the file root. |
| void GetLocationPath(std::vector<int>* output) const; |
| |
| const string* name_; |
| const string* full_name_; |
| const ServiceDescriptor* service_; |
| const Descriptor* input_type_; |
| const Descriptor* output_type_; |
| const MethodOptions* options_; |
| bool client_streaming_; |
| bool server_streaming_; |
| // IMPORTANT: If you add a new field, make sure to search for all instances |
| // of Allocate<MethodDescriptor>() and AllocateArray<MethodDescriptor>() in |
| // descriptor.cc and update them to initialize the field. |
| |
| // Must be constructed using DescriptorPool. |
| MethodDescriptor() {} |
| friend class DescriptorBuilder; |
| friend class ServiceDescriptor; |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(MethodDescriptor); |
| }; |
| |
| |
| // Describes a whole .proto file. To get the FileDescriptor for a compiled-in |
| // file, get the descriptor for something defined in that file and call |
| // descriptor->file(). Use DescriptorPool to construct your own descriptors. |
| class LIBPROTOBUF_EXPORT FileDescriptor { |
| public: |
| // The filename, relative to the source tree. |
| // e.g. "google/protobuf/descriptor.proto" |
| const string& name() const; |
| |
| // The package, e.g. "google.protobuf.compiler". |
| const string& package() const; |
| |
| // The DescriptorPool in which this FileDescriptor and all its contents were |
| // allocated. Never NULL. |
| const DescriptorPool* pool() const; |
| |
| // The number of files imported by this one. |
| int dependency_count() const; |
| // Gets an imported file by index, where 0 <= index < dependency_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const FileDescriptor* dependency(int index) const; |
| |
| // The number of files public imported by this one. |
| // The public dependency list is a subset of the dependency list. |
| int public_dependency_count() const; |
| // Gets a public imported file by index, where 0 <= index < |
| // public_dependency_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const FileDescriptor* public_dependency(int index) const; |
| |
| // The number of files that are imported for weak fields. |
| // The weak dependency list is a subset of the dependency list. |
| int weak_dependency_count() const; |
| // Gets a weak imported file by index, where 0 <= index < |
| // weak_dependency_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const FileDescriptor* weak_dependency(int index) const; |
| |
| // Number of top-level message types defined in this file. (This does not |
| // include nested types.) |
| int message_type_count() const; |
| // Gets a top-level message type, where 0 <= index < message_type_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const Descriptor* message_type(int index) const; |
| |
| // Number of top-level enum types defined in this file. (This does not |
| // include nested types.) |
| int enum_type_count() const; |
| // Gets a top-level enum type, where 0 <= index < enum_type_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const EnumDescriptor* enum_type(int index) const; |
| |
| // Number of services defined in this file. |
| int service_count() const; |
| // Gets a service, where 0 <= index < service_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const ServiceDescriptor* service(int index) const; |
| |
| // Number of extensions defined at file scope. (This does not include |
| // extensions nested within message types.) |
| int extension_count() const; |
| // Gets an extension's descriptor, where 0 <= index < extension_count(). |
| // These are returned in the order they were defined in the .proto file. |
| const FieldDescriptor* extension(int index) const; |
| |
| // Get options for this file. These are specified in the .proto file by |
| // placing lines like "option foo = 1234;" at the top level, outside of any |
| // other definitions. Allowed options are defined by FileOptions in |
| // google/protobuf/descriptor.proto, and any available extensions of that |
| // message. |
| const FileOptions& options() const; |
| |
| // Syntax of this file. |
| enum Syntax { |
| SYNTAX_UNKNOWN = 0, |
| SYNTAX_PROTO2 = 2, |
| SYNTAX_PROTO3 = 3, |
| }; |
| Syntax syntax() const; |
| static const char* SyntaxName(Syntax syntax); |
| |
| // Find a top-level message type by name. Returns NULL if not found. |
| const Descriptor* FindMessageTypeByName(const string& name) const; |
| // Find a top-level enum type by name. Returns NULL if not found. |
| const EnumDescriptor* FindEnumTypeByName(const string& name) const; |
| // Find an enum value defined in any top-level enum by name. Returns NULL if |
| // not found. |
| const EnumValueDescriptor* FindEnumValueByName(const string& name) const; |
| // Find a service definition by name. Returns NULL if not found. |
| const ServiceDescriptor* FindServiceByName(const string& name) const; |
| // Find a top-level extension definition by name. Returns NULL if not found. |
| const FieldDescriptor* FindExtensionByName(const string& name) const; |
| // Similar to FindExtensionByName(), but searches by lowercased-name. See |
| // Descriptor::FindFieldByLowercaseName(). |
| const FieldDescriptor* FindExtensionByLowercaseName(const string& name) const; |
| // Similar to FindExtensionByName(), but searches by camelcased-name. See |
| // Descriptor::FindFieldByCamelcaseName(). |
| const FieldDescriptor* FindExtensionByCamelcaseName(const string& name) const; |
| |
| // See Descriptor::CopyTo(). |
| // Notes: |
| // - This method does NOT copy source code information since it is relatively |
| // large and rarely needed. See CopySourceCodeInfoTo() below. |
| void CopyTo(FileDescriptorProto* proto) const; |
| // Write the source code information of this FileDescriptor into the given |
| // FileDescriptorProto. See CopyTo() above. |
| void CopySourceCodeInfoTo(FileDescriptorProto* proto) const; |
| |
| // See Descriptor::DebugString(). |
| string DebugString() const; |
| |
| // See Descriptor::DebugStringWithOptions(). |
| string DebugStringWithOptions(const DebugStringOptions& options) const; |
| |
| // Returns true if this is a placeholder for an unknown file. This will |
| // only be the case if this descriptor comes from a DescriptorPool |
| // with AllowUnknownDependencies() set. |
| bool is_placeholder() const; |
| |
| // Updates |*out_location| to the source location of the complete extent of |
| // this file declaration (namely, the empty path). |
| bool GetSourceLocation(SourceLocation* out_location) const; |
| |
| // Updates |*out_location| to the source location of the complete |
| // extent of the declaration or declaration-part denoted by |path|. |
| // Returns false and leaves |*out_location| unchanged iff location |
| // information was not available. (See SourceCodeInfo for |
| // description of path encoding.) |
| bool GetSourceLocation(const std::vector<int>& path, |
| SourceLocation* out_location) const; |
| |
| private: |
| typedef FileOptions OptionsType; |
| |
| const string* name_; |
| const string* package_; |
| const DescriptorPool* pool_; |
| int dependency_count_; |
| const FileDescriptor** dependencies_; |
| int public_dependency_count_; |
| int* public_dependencies_; |
| int weak_dependency_count_; |
| int* weak_dependencies_; |
| int message_type_count_; |
| Descriptor* message_types_; |
| int enum_type_count_; |
| EnumDescriptor* enum_types_; |
| int service_count_; |
| ServiceDescriptor* services_; |
| int extension_count_; |
| Syntax syntax_; |
| bool is_placeholder_; |
| FieldDescriptor* extensions_; |
| const FileOptions* options_; |
| |
| const FileDescriptorTables* tables_; |
| const SourceCodeInfo* source_code_info_; |
| // IMPORTANT: If you add a new field, make sure to search for all instances |
| // of Allocate<FileDescriptor>() and AllocateArray<FileDescriptor>() in |
| // descriptor.cc and update them to initialize the field. |
| |
| FileDescriptor() {} |
| friend class DescriptorBuilder; |
| friend class Descriptor; |
| friend class FieldDescriptor; |
| friend class OneofDescriptor; |
| friend class EnumDescriptor; |
| friend class EnumValueDescriptor; |
| friend class MethodDescriptor; |
| friend class ServiceDescriptor; |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(FileDescriptor); |
| }; |
| |
| // =================================================================== |
| |
| // Used to construct descriptors. |
| // |
| // Normally you won't want to build your own descriptors. Message classes |
| // constructed by the protocol compiler will provide them for you. However, |
| // if you are implementing Message on your own, or if you are writing a |
| // program which can operate on totally arbitrary types and needs to load |
| // them from some sort of database, you might need to. |
| // |
| // Since Descriptors are composed of a whole lot of cross-linked bits of |
| // data that would be a pain to put together manually, the |
| // DescriptorPool class is provided to make the process easier. It can |
| // take a FileDescriptorProto (defined in descriptor.proto), validate it, |
| // and convert it to a set of nicely cross-linked Descriptors. |
| // |
| // DescriptorPool also helps with memory management. Descriptors are |
| // composed of many objects containing static data and pointers to each |
| // other. In all likelihood, when it comes time to delete this data, |
| // you'll want to delete it all at once. In fact, it is not uncommon to |
| // have a whole pool of descriptors all cross-linked with each other which |
| // you wish to delete all at once. This class represents such a pool, and |
| // handles the memory management for you. |
| // |
| // You can also search for descriptors within a DescriptorPool by name, and |
| // extensions by number. |
| class LIBPROTOBUF_EXPORT DescriptorPool { |
| public: |
| // Create a normal, empty DescriptorPool. |
| DescriptorPool(); |
| |
| // Constructs a DescriptorPool that, when it can't find something among the |
| // descriptors already in the pool, looks for it in the given |
| // DescriptorDatabase. |
| // Notes: |
| // - If a DescriptorPool is constructed this way, its BuildFile*() methods |
| // must not be called (they will assert-fail). The only way to populate |
| // the pool with descriptors is to call the Find*By*() methods. |
| // - The Find*By*() methods may block the calling thread if the |
| // DescriptorDatabase blocks. This in turn means that parsing messages |
| // may block if they need to look up extensions. |
| // - The Find*By*() methods will use mutexes for thread-safety, thus making |
| // them slower even when they don't have to fall back to the database. |
| // In fact, even the Find*By*() methods of descriptor objects owned by |
| // this pool will be slower, since they will have to obtain locks too. |
| // - An ErrorCollector may optionally be given to collect validation errors |
| // in files loaded from the database. If not given, errors will be printed |
| // to GOOGLE_LOG(ERROR). Remember that files are built on-demand, so this |
| // ErrorCollector may be called from any thread that calls one of the |
| // Find*By*() methods. |
| // - The DescriptorDatabase must not be mutated during the lifetime of |
| // the DescriptorPool. Even if the client takes care to avoid data races, |
| // changes to the content of the DescriptorDatabase may not be reflected |
| // in subsequent lookups in the DescriptorPool. |
| class ErrorCollector; |
| explicit DescriptorPool(DescriptorDatabase* fallback_database, |
| ErrorCollector* error_collector = NULL); |
| |
| ~DescriptorPool(); |
| |
| // Get a pointer to the generated pool. Generated protocol message classes |
| // which are compiled into the binary will allocate their descriptors in |
| // this pool. Do not add your own descriptors to this pool. |
| static const DescriptorPool* generated_pool(); |
| |
| // Find a FileDescriptor in the pool by file name. Returns NULL if not |
| // found. |
| const FileDescriptor* FindFileByName(const string& name) const; |
| |
| // Find the FileDescriptor in the pool which defines the given symbol. |
| // If any of the Find*ByName() methods below would succeed, then this is |
| // equivalent to calling that method and calling the result's file() method. |
| // Otherwise this returns NULL. |
| const FileDescriptor* FindFileContainingSymbol( |
| const string& symbol_name) const; |
| |
| // Looking up descriptors ------------------------------------------ |
| // These find descriptors by fully-qualified name. These will find both |
| // top-level descriptors and nested descriptors. They return NULL if not |
| // found. |
| |
| const Descriptor* FindMessageTypeByName(const string& name) const; |
| const FieldDescriptor* FindFieldByName(const string& name) const; |
| const FieldDescriptor* FindExtensionByName(const string& name) const; |
| const OneofDescriptor* FindOneofByName(const string& name) const; |
| const EnumDescriptor* FindEnumTypeByName(const string& name) const; |
| const EnumValueDescriptor* FindEnumValueByName(const string& name) const; |
| const ServiceDescriptor* FindServiceByName(const string& name) const; |
| const MethodDescriptor* FindMethodByName(const string& name) const; |
| |
| // Finds an extension of the given type by number. The extendee must be |
| // a member of this DescriptorPool or one of its underlays. |
| const FieldDescriptor* FindExtensionByNumber(const Descriptor* extendee, |
| int number) const; |
| |
| // Finds extensions of extendee. The extensions will be appended to |
| // out in an undefined order. Only extensions defined directly in |
| // this DescriptorPool or one of its underlays are guaranteed to be |
| // found: extensions defined in the fallback database might not be found |
| // depending on the database implementation. |
| void FindAllExtensions(const Descriptor* extendee, |
| std::vector<const FieldDescriptor*>* out) const; |
| |
| // Building descriptors -------------------------------------------- |
| |
| // When converting a FileDescriptorProto to a FileDescriptor, various |
| // errors might be detected in the input. The caller may handle these |
| // programmatically by implementing an ErrorCollector. |
| class LIBPROTOBUF_EXPORT ErrorCollector { |
| public: |
| inline ErrorCollector() {} |
| virtual ~ErrorCollector(); |
| |
| // These constants specify what exact part of the construct is broken. |
| // This is useful e.g. for mapping the error back to an exact location |
| // in a .proto file. |
| enum ErrorLocation { |
| NAME, // the symbol name, or the package name for files |
| NUMBER, // field or extension range number |
| TYPE, // field type |
| EXTENDEE, // field extendee |
| DEFAULT_VALUE, // field default value |
| INPUT_TYPE, // method input type |
| OUTPUT_TYPE, // method output type |
| OPTION_NAME, // name in assignment |
| OPTION_VALUE, // value in option assignment |
| OTHER // some other problem |
| }; |
| |
| // Reports an error in the FileDescriptorProto. Use this function if the |
| // problem occurred should interrupt building the FileDescriptorProto. |
| virtual void AddError( |
| const string& filename, // File name in which the error occurred. |
| const string& element_name, // Full name of the erroneous element. |
| const Message* descriptor, // Descriptor of the erroneous element. |
| ErrorLocation location, // One of the location constants, above. |
| const string& message // Human-readable error message. |
| ) = 0; |
| |
| // Reports a warning in the FileDescriptorProto. Use this function if the |
| // problem occurred should NOT interrupt building the FileDescriptorProto. |
| virtual void AddWarning( |
| const string& /*filename*/, // File name in which the error occurred. |
| const string& /*element_name*/, // Full name of the erroneous element. |
| const Message* /*descriptor*/, // Descriptor of the erroneous element. |
| ErrorLocation /*location*/, // One of the location constants, above. |
| const string& /*message*/ // Human-readable error message. |
| ) {} |
| |
| private: |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ErrorCollector); |
| }; |
| |
| // Convert the FileDescriptorProto to real descriptors and place them in |
| // this DescriptorPool. All dependencies of the file must already be in |
| // the pool. Returns the resulting FileDescriptor, or NULL if there were |
| // problems with the input (e.g. the message was invalid, or dependencies |
| // were missing). Details about the errors are written to GOOGLE_LOG(ERROR). |
| const FileDescriptor* BuildFile(const FileDescriptorProto& proto); |
| |
| // Same as BuildFile() except errors are sent to the given ErrorCollector. |
| const FileDescriptor* BuildFileCollectingErrors( |
| const FileDescriptorProto& proto, |
| ErrorCollector* error_collector); |
| |
| // By default, it is an error if a FileDescriptorProto contains references |
| // to types or other files that are not found in the DescriptorPool (or its |
| // backing DescriptorDatabase, if any). If you call |
| // AllowUnknownDependencies(), however, then unknown types and files |
| // will be replaced by placeholder descriptors (which can be identified by |
| // the is_placeholder() method). This can allow you to |
| // perform some useful operations with a .proto file even if you do not |
| // have access to other .proto files on which it depends. However, some |
| // heuristics must be used to fill in the gaps in information, and these |
| // can lead to descriptors which are inaccurate. For example, the |
| // DescriptorPool may be forced to guess whether an unknown type is a message |
| // or an enum, as well as what package it resides in. Furthermore, |
| // placeholder types will not be discoverable via FindMessageTypeByName() |
| // and similar methods, which could confuse some descriptor-based algorithms. |
| // Generally, the results of this option should be handled with extreme care. |
| void AllowUnknownDependencies() { allow_unknown_ = true; } |
| |
| // By default, weak imports are allowed to be missing, in which case we will |
| // use a placeholder for the dependency and convert the field to be an Empty |
| // message field. If you call EnforceWeakDependencies(true), however, the |
| // DescriptorPool will report a import not found error. |
| void EnforceWeakDependencies(bool enforce) { enforce_weak_ = enforce; } |
| |
| // Internal stuff -------------------------------------------------- |
| // These methods MUST NOT be called from outside the proto2 library. |
| // These methods may contain hidden pitfalls and may be removed in a |
| // future library version. |
| |
| // Create a DescriptorPool which is overlaid on top of some other pool. |
| // If you search for a descriptor in the overlay and it is not found, the |
| // underlay will be searched as a backup. If the underlay has its own |
| // underlay, that will be searched next, and so on. This also means that |
| // files built in the overlay will be cross-linked with the underlay's |
| // descriptors if necessary. The underlay remains property of the caller; |
| // it must remain valid for the lifetime of the newly-constructed pool. |
| // |
| // Example: Say you want to parse a .proto file at runtime in order to use |
| // its type with a DynamicMessage. Say this .proto file has dependencies, |
| // but you know that all the dependencies will be things that are already |
| // compiled into the binary. For ease of use, you'd like to load the types |
| // right out of generated_pool() rather than have to parse redundant copies |
| // of all these .protos and runtime. But, you don't want to add the parsed |
| // types directly into generated_pool(): this is not allowed, and would be |
| // bad design anyway. So, instead, you could use generated_pool() as an |
| // underlay for a new DescriptorPool in which you add only the new file. |
| // |
| // WARNING: Use of underlays can lead to many subtle gotchas. Instead, |
| // try to formulate what you want to do in terms of DescriptorDatabases. |
| explicit DescriptorPool(const DescriptorPool* underlay); |
| |
| // Called by generated classes at init time to add their descriptors to |
| // generated_pool. Do NOT call this in your own code! filename must be a |
| // permanent string (e.g. a string literal). |
| static void InternalAddGeneratedFile( |
| const void* encoded_file_descriptor, int size); |
| |
| |
| // For internal use only: Gets a non-const pointer to the generated pool. |
| // This is called at static-initialization time only, so thread-safety is |
| // not a concern. If both an underlay and a fallback database are present, |
| // the underlay takes precedence. |
| static DescriptorPool* internal_generated_pool(); |
| |
| // For internal use only: Changes the behavior of BuildFile() such that it |
| // allows the file to make reference to message types declared in other files |
| // which it did not officially declare as dependencies. |
| void InternalDontEnforceDependencies(); |
| |
| // For internal use only. |
| void internal_set_underlay(const DescriptorPool* underlay) { |
| underlay_ = underlay; |
| } |
| |
| // For internal (unit test) use only: Returns true if a FileDescriptor has |
| // been constructed for the given file, false otherwise. Useful for testing |
| // lazy descriptor initialization behavior. |
| bool InternalIsFileLoaded(const string& filename) const; |
| |
| |
| // Add a file to unused_import_track_files_. DescriptorBuilder will log |
| // warnings for those files if there is any unused import. |
| void AddUnusedImportTrackFile(const string& file_name); |
| void ClearUnusedImportTrackFiles(); |
| |
| private: |
| friend class Descriptor; |
| friend class FieldDescriptor; |
| friend class EnumDescriptor; |
| friend class ServiceDescriptor; |
| friend class FileDescriptor; |
| friend class DescriptorBuilder; |
| friend class FileDescriptorTables; |
| |
| // Return true if the given name is a sub-symbol of any non-package |
| // descriptor that already exists in the descriptor pool. (The full |
| // definition of such types is already known.) |
| bool IsSubSymbolOfBuiltType(const string& name) const; |
| |
| // Tries to find something in the fallback database and link in the |
| // corresponding proto file. Returns true if successful, in which case |
| // the caller should search for the thing again. These are declared |
| // const because they are called by (semantically) const methods. |
| bool TryFindFileInFallbackDatabase(const string& name) const; |
| bool TryFindSymbolInFallbackDatabase(const string& name) const; |
| bool TryFindExtensionInFallbackDatabase(const Descriptor* containing_type, |
| int field_number) const; |
| |
| // Like BuildFile() but called internally when the file has been loaded from |
| // fallback_database_. Declared const because it is called by (semantically) |
| // const methods. |
| const FileDescriptor* BuildFileFromDatabase( |
| const FileDescriptorProto& proto) const; |
| |
| // If fallback_database_ is NULL, this is NULL. Otherwise, this is a mutex |
| // which must be locked while accessing tables_. |
| Mutex* mutex_; |
| |
| // See constructor. |
| DescriptorDatabase* fallback_database_; |
| ErrorCollector* default_error_collector_; |
| const DescriptorPool* underlay_; |
| |
| // This class contains a lot of hash maps with complicated types that |
| // we'd like to keep out of the header. |
| class Tables; |
| scoped_ptr<Tables> tables_; |
| |
| bool enforce_dependencies_; |
| bool allow_unknown_; |
| bool enforce_weak_; |
| std::set<string> unused_import_track_files_; |
| |
| GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(DescriptorPool); |
| }; |
| |
| // inline methods ==================================================== |
| |
| // These macros makes this repetitive code more readable. |
| #define PROTOBUF_DEFINE_ACCESSOR(CLASS, FIELD, TYPE) \ |
| inline TYPE CLASS::FIELD() const { return FIELD##_; } |
| |
| // Strings fields are stored as pointers but returned as const references. |
| #define PROTOBUF_DEFINE_STRING_ACCESSOR(CLASS, FIELD) \ |
| inline const string& CLASS::FIELD() const { return *FIELD##_; } |
| |
| // Arrays take an index parameter, obviously. |
| #define PROTOBUF_DEFINE_ARRAY_ACCESSOR(CLASS, FIELD, TYPE) \ |
| inline TYPE CLASS::FIELD(int index) const { return FIELD##s_ + index; } |
| |
| #define PROTOBUF_DEFINE_OPTIONS_ACCESSOR(CLASS, TYPE) \ |
| inline const TYPE& CLASS::options() const { return *options_; } |
| |
| PROTOBUF_DEFINE_STRING_ACCESSOR(Descriptor, name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(Descriptor, full_name) |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, file, const FileDescriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, containing_type, const Descriptor*) |
| |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, field_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, oneof_decl_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, nested_type_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, enum_type_count, int) |
| |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(Descriptor, field, const FieldDescriptor*) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(Descriptor, oneof_decl, const OneofDescriptor*) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(Descriptor, nested_type, const Descriptor*) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(Descriptor, enum_type, const EnumDescriptor*) |
| |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, extension_range_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, extension_count, int) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(Descriptor, extension_range, |
| const Descriptor::ExtensionRange*) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(Descriptor, extension, |
| const FieldDescriptor*) |
| PROTOBUF_DEFINE_OPTIONS_ACCESSOR(Descriptor, MessageOptions); |
| PROTOBUF_DEFINE_ACCESSOR(Descriptor, is_placeholder, bool) |
| |
| PROTOBUF_DEFINE_STRING_ACCESSOR(FieldDescriptor, name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(FieldDescriptor, full_name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(FieldDescriptor, lowercase_name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(FieldDescriptor, camelcase_name) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, file, const FileDescriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, number, int) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, is_extension, bool) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, type, FieldDescriptor::Type) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, label, FieldDescriptor::Label) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, containing_type, const Descriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, containing_oneof, |
| const OneofDescriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, index_in_oneof, int) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, extension_scope, const Descriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, message_type, const Descriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, enum_type, const EnumDescriptor*) |
| PROTOBUF_DEFINE_OPTIONS_ACCESSOR(FieldDescriptor, FieldOptions) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, has_default_value, bool) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, default_value_int32 , int32 ) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, default_value_int64 , int64 ) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, default_value_uint32, uint32) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, default_value_uint64, uint64) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, default_value_float , float ) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, default_value_double, double) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, default_value_bool , bool ) |
| PROTOBUF_DEFINE_ACCESSOR(FieldDescriptor, default_value_enum, |
| const EnumValueDescriptor*) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(FieldDescriptor, default_value_string) |
| |
| PROTOBUF_DEFINE_STRING_ACCESSOR(OneofDescriptor, name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(OneofDescriptor, full_name) |
| PROTOBUF_DEFINE_ACCESSOR(OneofDescriptor, containing_type, const Descriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(OneofDescriptor, field_count, int) |
| |
| PROTOBUF_DEFINE_STRING_ACCESSOR(EnumDescriptor, name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(EnumDescriptor, full_name) |
| PROTOBUF_DEFINE_ACCESSOR(EnumDescriptor, file, const FileDescriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(EnumDescriptor, containing_type, const Descriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(EnumDescriptor, value_count, int) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(EnumDescriptor, value, |
| const EnumValueDescriptor*) |
| PROTOBUF_DEFINE_OPTIONS_ACCESSOR(EnumDescriptor, EnumOptions); |
| PROTOBUF_DEFINE_ACCESSOR(EnumDescriptor, is_placeholder, bool) |
| |
| PROTOBUF_DEFINE_STRING_ACCESSOR(EnumValueDescriptor, name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(EnumValueDescriptor, full_name) |
| PROTOBUF_DEFINE_ACCESSOR(EnumValueDescriptor, number, int) |
| PROTOBUF_DEFINE_ACCESSOR(EnumValueDescriptor, type, const EnumDescriptor*) |
| PROTOBUF_DEFINE_OPTIONS_ACCESSOR(EnumValueDescriptor, EnumValueOptions) |
| |
| PROTOBUF_DEFINE_STRING_ACCESSOR(ServiceDescriptor, name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(ServiceDescriptor, full_name) |
| PROTOBUF_DEFINE_ACCESSOR(ServiceDescriptor, file, const FileDescriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(ServiceDescriptor, method_count, int) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(ServiceDescriptor, method, |
| const MethodDescriptor*) |
| PROTOBUF_DEFINE_OPTIONS_ACCESSOR(ServiceDescriptor, ServiceOptions); |
| |
| PROTOBUF_DEFINE_STRING_ACCESSOR(MethodDescriptor, name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(MethodDescriptor, full_name) |
| PROTOBUF_DEFINE_ACCESSOR(MethodDescriptor, service, const ServiceDescriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(MethodDescriptor, input_type, const Descriptor*) |
| PROTOBUF_DEFINE_ACCESSOR(MethodDescriptor, output_type, const Descriptor*) |
| PROTOBUF_DEFINE_OPTIONS_ACCESSOR(MethodDescriptor, MethodOptions); |
| PROTOBUF_DEFINE_ACCESSOR(MethodDescriptor, client_streaming, bool) |
| PROTOBUF_DEFINE_ACCESSOR(MethodDescriptor, server_streaming, bool) |
| |
| PROTOBUF_DEFINE_STRING_ACCESSOR(FileDescriptor, name) |
| PROTOBUF_DEFINE_STRING_ACCESSOR(FileDescriptor, package) |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, pool, const DescriptorPool*) |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, dependency_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, public_dependency_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, weak_dependency_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, message_type_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, enum_type_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, service_count, int) |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, extension_count, int) |
| PROTOBUF_DEFINE_OPTIONS_ACCESSOR(FileDescriptor, FileOptions); |
| PROTOBUF_DEFINE_ACCESSOR(FileDescriptor, is_placeholder, bool) |
| |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(FileDescriptor, message_type, const Descriptor*) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(FileDescriptor, enum_type, const EnumDescriptor*) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(FileDescriptor, service, |
| const ServiceDescriptor*) |
| PROTOBUF_DEFINE_ARRAY_ACCESSOR(FileDescriptor, extension, |
| const FieldDescriptor*) |
| |
| #undef PROTOBUF_DEFINE_ACCESSOR |
| #undef PROTOBUF_DEFINE_STRING_ACCESSOR |
| #undef PROTOBUF_DEFINE_ARRAY_ACCESSOR |
| |
| // A few accessors differ from the macros... |
| |
| inline bool Descriptor::IsExtensionNumber(int number) const { |
| return FindExtensionRangeContainingNumber(number) != NULL; |
| } |
| |
| inline bool FieldDescriptor::is_required() const { |
| return label() == LABEL_REQUIRED; |
| } |
| |
| inline bool FieldDescriptor::is_optional() const { |
| return label() == LABEL_OPTIONAL; |
| } |
| |
| inline bool FieldDescriptor::is_repeated() const { |
| return label() == LABEL_REPEATED; |
| } |
| |
| inline bool FieldDescriptor::is_packable() const { |
| return is_repeated() && IsTypePackable(type()); |
| } |
| |
| // To save space, index() is computed by looking at the descriptor's position |
| // in the parent's array of children. |
| inline int FieldDescriptor::index() const { |
| if (!is_extension_) { |
| return static_cast<int>(this - containing_type_->fields_); |
| } else if (extension_scope_ != NULL) { |
| return static_cast<int>(this - extension_scope_->extensions_); |
| } else { |
| return static_cast<int>(this - file_->extensions_); |
| } |
| } |
| |
| inline int Descriptor::index() const { |
| if (containing_type_ == NULL) { |
| return static_cast<int>(this - file_->message_types_); |
| } else { |
| return static_cast<int>(this - containing_type_->nested_types_); |
| } |
| } |
| |
| inline int OneofDescriptor::index() const { |
| return static_cast<int>(this - containing_type_->oneof_decls_); |
| } |
| |
| inline int EnumDescriptor::index() const { |
| if (containing_type_ == NULL) { |
| return static_cast<int>(this - file_->enum_types_); |
| } else { |
| return static_cast<int>(this - containing_type_->enum_types_); |
| } |
| } |
| |
| inline int EnumValueDescriptor::index() const { |
| return static_cast<int>(this - type_->values_); |
| } |
| |
| inline int ServiceDescriptor::index() const { |
| return static_cast<int>(this - file_->services_); |
| } |
| |
| inline int MethodDescriptor::index() const { |
| return static_cast<int>(this - service_->methods_); |
| } |
| |
| inline const char* FieldDescriptor::type_name() const { |
| return kTypeToName[type_]; |
| } |
| |
| inline FieldDescriptor::CppType FieldDescriptor::cpp_type() const { |
| return kTypeToCppTypeMap[type_]; |
| } |
| |
| inline const char* FieldDescriptor::cpp_type_name() const { |
| return kCppTypeToName[kTypeToCppTypeMap[type_]]; |
| } |
| |
| inline FieldDescriptor::CppType FieldDescriptor::TypeToCppType(Type type) { |
| return kTypeToCppTypeMap[type]; |
| } |
| |
| inline const char* FieldDescriptor::TypeName(Type type) { |
| return kTypeToName[type]; |
| } |
| |
| inline const char* FieldDescriptor::CppTypeName(CppType cpp_type) { |
| return kCppTypeToName[cpp_type]; |
| } |
| |
| inline bool FieldDescriptor::IsTypePackable(Type field_type) { |
| return (field_type != FieldDescriptor::TYPE_STRING && |
| field_type != FieldDescriptor::TYPE_GROUP && |
| field_type != FieldDescriptor::TYPE_MESSAGE && |
| field_type != FieldDescriptor::TYPE_BYTES); |
| } |
| |
| inline const FileDescriptor* FileDescriptor::dependency(int index) const { |
| return dependencies_[index]; |
| } |
| |
| inline const FileDescriptor* FileDescriptor::public_dependency( |
| int index) const { |
| return dependencies_[public_dependencies_[index]]; |
| } |
| |
| inline const FileDescriptor* FileDescriptor::weak_dependency( |
| int index) const { |
| return dependencies_[weak_dependencies_[index]]; |
| } |
| |
| inline FileDescriptor::Syntax FileDescriptor::syntax() const { |
| return syntax_; |
| } |
| |
| // Can't use PROTOBUF_DEFINE_ARRAY_ACCESSOR because fields_ is actually an array |
| // of pointers rather than the usual array of objects. |
| inline const FieldDescriptor* OneofDescriptor::field(int index) const { |
| return fields_[index]; |
| } |
| |
| } // namespace protobuf |
| |
| } // namespace google |
| #endif // GOOGLE_PROTOBUF_DESCRIPTOR_H__ |