1// Copyright 2019 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5package filedesc 6 7import ( 8 "google.golang.org/protobuf/internal/descopts" 9 "google.golang.org/protobuf/internal/pragma" 10 pref "google.golang.org/protobuf/reflect/protoreflect" 11) 12 13var ( 14 emptyNames = new(Names) 15 emptyEnumRanges = new(EnumRanges) 16 emptyFieldRanges = new(FieldRanges) 17 emptyFieldNumbers = new(FieldNumbers) 18 emptySourceLocations = new(SourceLocations) 19 20 emptyFiles = new(FileImports) 21 emptyMessages = new(Messages) 22 emptyFields = new(Fields) 23 emptyOneofs = new(Oneofs) 24 emptyEnums = new(Enums) 25 emptyEnumValues = new(EnumValues) 26 emptyExtensions = new(Extensions) 27 emptyServices = new(Services) 28) 29 30// PlaceholderFile is a placeholder, representing only the file path. 31type PlaceholderFile string 32 33func (f PlaceholderFile) ParentFile() pref.FileDescriptor { return f } 34func (f PlaceholderFile) Parent() pref.Descriptor { return nil } 35func (f PlaceholderFile) Index() int { return 0 } 36func (f PlaceholderFile) Syntax() pref.Syntax { return 0 } 37func (f PlaceholderFile) Name() pref.Name { return "" } 38func (f PlaceholderFile) FullName() pref.FullName { return "" } 39func (f PlaceholderFile) IsPlaceholder() bool { return true } 40func (f PlaceholderFile) Options() pref.ProtoMessage { return descopts.File } 41func (f PlaceholderFile) Path() string { return string(f) } 42func (f PlaceholderFile) Package() pref.FullName { return "" } 43func (f PlaceholderFile) Imports() pref.FileImports { return emptyFiles } 44func (f PlaceholderFile) Messages() pref.MessageDescriptors { return emptyMessages } 45func (f PlaceholderFile) Enums() pref.EnumDescriptors { return emptyEnums } 46func (f PlaceholderFile) Extensions() pref.ExtensionDescriptors { return emptyExtensions } 47func (f PlaceholderFile) Services() pref.ServiceDescriptors { return emptyServices } 48func (f PlaceholderFile) SourceLocations() pref.SourceLocations { return emptySourceLocations } 49func (f PlaceholderFile) ProtoType(pref.FileDescriptor) { return } 50func (f PlaceholderFile) ProtoInternal(pragma.DoNotImplement) { return } 51 52// PlaceholderEnum is a placeholder, representing only the full name. 53type PlaceholderEnum pref.FullName 54 55func (e PlaceholderEnum) ParentFile() pref.FileDescriptor { return nil } 56func (e PlaceholderEnum) Parent() pref.Descriptor { return nil } 57func (e PlaceholderEnum) Index() int { return 0 } 58func (e PlaceholderEnum) Syntax() pref.Syntax { return 0 } 59func (e PlaceholderEnum) Name() pref.Name { return pref.FullName(e).Name() } 60func (e PlaceholderEnum) FullName() pref.FullName { return pref.FullName(e) } 61func (e PlaceholderEnum) IsPlaceholder() bool { return true } 62func (e PlaceholderEnum) Options() pref.ProtoMessage { return descopts.Enum } 63func (e PlaceholderEnum) Values() pref.EnumValueDescriptors { return emptyEnumValues } 64func (e PlaceholderEnum) ReservedNames() pref.Names { return emptyNames } 65func (e PlaceholderEnum) ReservedRanges() pref.EnumRanges { return emptyEnumRanges } 66func (e PlaceholderEnum) ProtoType(pref.EnumDescriptor) { return } 67func (e PlaceholderEnum) ProtoInternal(pragma.DoNotImplement) { return } 68 69// PlaceholderEnumValue is a placeholder, representing only the full name. 70type PlaceholderEnumValue pref.FullName 71 72func (e PlaceholderEnumValue) ParentFile() pref.FileDescriptor { return nil } 73func (e PlaceholderEnumValue) Parent() pref.Descriptor { return nil } 74func (e PlaceholderEnumValue) Index() int { return 0 } 75func (e PlaceholderEnumValue) Syntax() pref.Syntax { return 0 } 76func (e PlaceholderEnumValue) Name() pref.Name { return pref.FullName(e).Name() } 77func (e PlaceholderEnumValue) FullName() pref.FullName { return pref.FullName(e) } 78func (e PlaceholderEnumValue) IsPlaceholder() bool { return true } 79func (e PlaceholderEnumValue) Options() pref.ProtoMessage { return descopts.EnumValue } 80func (e PlaceholderEnumValue) Number() pref.EnumNumber { return 0 } 81func (e PlaceholderEnumValue) ProtoType(pref.EnumValueDescriptor) { return } 82func (e PlaceholderEnumValue) ProtoInternal(pragma.DoNotImplement) { return } 83 84// PlaceholderMessage is a placeholder, representing only the full name. 85type PlaceholderMessage pref.FullName 86 87func (m PlaceholderMessage) ParentFile() pref.FileDescriptor { return nil } 88func (m PlaceholderMessage) Parent() pref.Descriptor { return nil } 89func (m PlaceholderMessage) Index() int { return 0 } 90func (m PlaceholderMessage) Syntax() pref.Syntax { return 0 } 91func (m PlaceholderMessage) Name() pref.Name { return pref.FullName(m).Name() } 92func (m PlaceholderMessage) FullName() pref.FullName { return pref.FullName(m) } 93func (m PlaceholderMessage) IsPlaceholder() bool { return true } 94func (m PlaceholderMessage) Options() pref.ProtoMessage { return descopts.Message } 95func (m PlaceholderMessage) IsMapEntry() bool { return false } 96func (m PlaceholderMessage) Fields() pref.FieldDescriptors { return emptyFields } 97func (m PlaceholderMessage) Oneofs() pref.OneofDescriptors { return emptyOneofs } 98func (m PlaceholderMessage) ReservedNames() pref.Names { return emptyNames } 99func (m PlaceholderMessage) ReservedRanges() pref.FieldRanges { return emptyFieldRanges } 100func (m PlaceholderMessage) RequiredNumbers() pref.FieldNumbers { return emptyFieldNumbers } 101func (m PlaceholderMessage) ExtensionRanges() pref.FieldRanges { return emptyFieldRanges } 102func (m PlaceholderMessage) ExtensionRangeOptions(int) pref.ProtoMessage { panic("index out of range") } 103func (m PlaceholderMessage) Messages() pref.MessageDescriptors { return emptyMessages } 104func (m PlaceholderMessage) Enums() pref.EnumDescriptors { return emptyEnums } 105func (m PlaceholderMessage) Extensions() pref.ExtensionDescriptors { return emptyExtensions } 106func (m PlaceholderMessage) ProtoType(pref.MessageDescriptor) { return } 107func (m PlaceholderMessage) ProtoInternal(pragma.DoNotImplement) { return } 108