Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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82 lines
2.8 KiB
82 lines
2.8 KiB
// Protocol Buffers - Google's data interchange format |
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// Copyright 2008 Google Inc. All rights reserved. |
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// |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file or at |
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// https://developers.google.com/open-source/licenses/bsd |
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#ifndef RUBY_PROTOBUF_DEFS_H_ |
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#define RUBY_PROTOBUF_DEFS_H_ |
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#include "protobuf.h" |
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#include "ruby-upb.h" |
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// ----------------------------------------------------------------------------- |
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// TypeInfo |
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// ----------------------------------------------------------------------------- |
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// This bundles a upb_CType and msgdef/enumdef when appropriate. This is |
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// convenient for functions that need type information but cannot necessarily |
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// assume a upb_FieldDef will be available. |
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// |
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// For example, Google::Protobuf::Map and Google::Protobuf::RepeatedField can |
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// be constructed with type information alone: |
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// |
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// # RepeatedField will internally store the type information in a TypeInfo. |
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// Google::Protobuf::RepeatedField.new(:message, FooMessage) |
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typedef struct { |
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upb_CType type; |
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union { |
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const upb_MessageDef* msgdef; // When type == kUpb_CType_Message |
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const upb_EnumDef* enumdef; // When type == kUpb_CType_Enum |
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} def; |
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} TypeInfo; |
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static inline TypeInfo TypeInfo_get(const upb_FieldDef* f) { |
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TypeInfo ret = {upb_FieldDef_CType(f), {NULL}}; |
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switch (ret.type) { |
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case kUpb_CType_Message: |
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ret.def.msgdef = upb_FieldDef_MessageSubDef(f); |
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break; |
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case kUpb_CType_Enum: |
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ret.def.enumdef = upb_FieldDef_EnumSubDef(f); |
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break; |
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default: |
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break; |
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} |
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return ret; |
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} |
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TypeInfo TypeInfo_FromClass(int argc, VALUE* argv, int skip_arg, |
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VALUE* type_class, VALUE* init_arg); |
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static inline TypeInfo TypeInfo_from_type(upb_CType type) { |
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TypeInfo ret = {type}; |
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assert(type != kUpb_CType_Message && type != kUpb_CType_Enum); |
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return ret; |
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} |
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// ----------------------------------------------------------------------------- |
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// Other utilities |
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// ----------------------------------------------------------------------------- |
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VALUE Descriptor_DefToClass(const upb_MessageDef* m); |
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// Returns the underlying msgdef, enumdef, or symtab (respectively) for the |
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// given Descriptor, EnumDescriptor, or DescriptorPool Ruby object. |
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const upb_EnumDef* EnumDescriptor_GetEnumDef(VALUE enum_desc_rb); |
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const upb_DefPool* DescriptorPool_GetSymtab(VALUE desc_pool_rb); |
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const upb_MessageDef* Descriptor_GetMsgDef(VALUE desc_rb); |
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// Returns a upb field type for the given Ruby symbol |
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// (eg. :float => kUpb_CType_Float). |
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upb_CType ruby_to_fieldtype(VALUE type); |
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// The singleton generated pool (a DescriptorPool object). |
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extern VALUE generated_pool; |
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// Call at startup to register all types in this module. |
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void Defs_register(VALUE module); |
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#endif // RUBY_PROTOBUF_DEFS_H_
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