108 lines
4.1 KiB
C
108 lines
4.1 KiB
C
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef RUBY_PROTOBUF_DEFS_H_
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#define RUBY_PROTOBUF_DEFS_H_
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#include <ruby/ruby.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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