Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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111 lines
3.5 KiB
111 lines
3.5 KiB
// Protocol Buffers - Google's data interchange format |
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// Copyright 2023 Google LLC. 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 UPB_BASE_DESCRIPTOR_CONSTANTS_H_ |
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#define UPB_BASE_DESCRIPTOR_CONSTANTS_H_ |
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// Must be last. |
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#include "upb/port/def.inc" |
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// The types a field can have. Note that this list is not identical to the |
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// types defined in descriptor.proto, which gives INT32 and SINT32 separate |
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// types (we distinguish the two with the "integer encoding" enum below). |
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// This enum is an internal convenience only and has no meaning outside of upb. |
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typedef enum { |
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kUpb_CType_Bool = 1, |
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kUpb_CType_Float = 2, |
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kUpb_CType_Int32 = 3, |
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kUpb_CType_UInt32 = 4, |
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kUpb_CType_Enum = 5, // Enum values are int32. TODO: rename |
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kUpb_CType_Message = 6, |
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kUpb_CType_Double = 7, |
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kUpb_CType_Int64 = 8, |
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kUpb_CType_UInt64 = 9, |
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kUpb_CType_String = 10, |
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kUpb_CType_Bytes = 11 |
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} upb_CType; |
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// The repeated-ness of each field; this matches descriptor.proto. |
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typedef enum { |
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kUpb_Label_Optional = 1, |
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kUpb_Label_Required = 2, |
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kUpb_Label_Repeated = 3 |
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} upb_Label; |
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// Descriptor types, as defined in descriptor.proto. |
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typedef enum { |
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kUpb_FieldType_Double = 1, |
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kUpb_FieldType_Float = 2, |
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kUpb_FieldType_Int64 = 3, |
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kUpb_FieldType_UInt64 = 4, |
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kUpb_FieldType_Int32 = 5, |
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kUpb_FieldType_Fixed64 = 6, |
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kUpb_FieldType_Fixed32 = 7, |
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kUpb_FieldType_Bool = 8, |
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kUpb_FieldType_String = 9, |
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kUpb_FieldType_Group = 10, |
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kUpb_FieldType_Message = 11, |
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kUpb_FieldType_Bytes = 12, |
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kUpb_FieldType_UInt32 = 13, |
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kUpb_FieldType_Enum = 14, |
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kUpb_FieldType_SFixed32 = 15, |
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kUpb_FieldType_SFixed64 = 16, |
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kUpb_FieldType_SInt32 = 17, |
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kUpb_FieldType_SInt64 = 18, |
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} upb_FieldType; |
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#define kUpb_FieldType_SizeOf 19 |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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// Convert from upb_FieldType to upb_CType |
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UPB_INLINE upb_CType upb_FieldType_CType(upb_FieldType field_type) { |
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static const upb_CType c_type[] = { |
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kUpb_CType_Double, // kUpb_FieldType_Double |
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kUpb_CType_Float, // kUpb_FieldType_Float |
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kUpb_CType_Int64, // kUpb_FieldType_Int64 |
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kUpb_CType_UInt64, // kUpb_FieldType_UInt64 |
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kUpb_CType_Int32, // kUpb_FieldType_Int32 |
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kUpb_CType_UInt64, // kUpb_FieldType_Fixed64 |
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kUpb_CType_UInt32, // kUpb_FieldType_Fixed32 |
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kUpb_CType_Bool, // kUpb_FieldType_Bool |
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kUpb_CType_String, // kUpb_FieldType_String |
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kUpb_CType_Message, // kUpb_FieldType_Group |
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kUpb_CType_Message, // kUpb_FieldType_Message |
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kUpb_CType_Bytes, // kUpb_FieldType_Bytes |
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kUpb_CType_UInt32, // kUpb_FieldType_UInt32 |
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kUpb_CType_Enum, // kUpb_FieldType_Enum |
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kUpb_CType_Int32, // kUpb_FieldType_SFixed32 |
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kUpb_CType_Int64, // kUpb_FieldType_SFixed64 |
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kUpb_CType_Int32, // kUpb_FieldType_SInt32 |
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kUpb_CType_Int64, // kUpb_FieldType_SInt64 |
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}; |
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// -1 here because the enum is one-based but the table is zero-based. |
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return c_type[field_type - 1]; |
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} |
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UPB_INLINE bool upb_FieldType_IsPackable(upb_FieldType field_type) { |
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// clang-format off |
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const unsigned kUnpackableTypes = |
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(1 << kUpb_FieldType_String) | |
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(1 << kUpb_FieldType_Bytes) | |
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(1 << kUpb_FieldType_Message) | |
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(1 << kUpb_FieldType_Group); |
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// clang-format on |
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return (1 << field_type) & ~kUnpackableTypes; |
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} |
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#ifdef __cplusplus |
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} /* extern "C" */ |
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#endif |
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#include "upb/port/undef.inc" |
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#endif /* UPB_BASE_DESCRIPTOR_CONSTANTS_H_ */
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