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d888139e7b
The internal/fileinit package is split apart into two packages: * internal/filedesc constructs descriptors from the raw proto. It is very similar to the previous internal/fileinit package. * internal/filetype wraps descriptors with Go type information Overview: * The internal/fileinit package will be deleted in a future CL. It is kept around since the v1 repo currently depends on it. * The internal/prototype package is deleted. All former usages of it are now using internal/filedesc instead. Most significantly, the reflect/protodesc package was almost entirely re-written. * The internal/impl package drops support for messages that do not have a Descriptor method (pre-2016). This removes a significant amount of technical debt. filedesc.Builder to parse raw descriptors. * The internal/encoding/defval package now handles enum values by name. Change-Id: I3957bcc8588a70470fd6c7de1122216b80615ab7 Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/182360 Reviewed-by: Damien Neil <dneil@google.com>
91 lines
5.4 KiB
Go
91 lines
5.4 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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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.
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package filedesc
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import (
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"google.golang.org/protobuf/internal/descopts"
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"google.golang.org/protobuf/internal/pragma"
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pref "google.golang.org/protobuf/reflect/protoreflect"
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)
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var (
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emptyNames = new(Names)
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emptyEnumRanges = new(EnumRanges)
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emptyFieldRanges = new(FieldRanges)
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emptyFieldNumbers = new(FieldNumbers)
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emptyFiles = new(FileImports)
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emptyMessages = new(Messages)
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emptyFields = new(Fields)
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emptyOneofs = new(Oneofs)
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emptyEnums = new(Enums)
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emptyEnumValues = new(EnumValues)
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emptyExtensions = new(Extensions)
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emptyServices = new(Services)
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)
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// PlaceholderFile is a placeholder, representing only the file path.
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type PlaceholderFile string
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func (f PlaceholderFile) ParentFile() pref.FileDescriptor { return f }
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func (f PlaceholderFile) Parent() pref.Descriptor { return nil }
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func (f PlaceholderFile) Index() int { return 0 }
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func (f PlaceholderFile) Syntax() pref.Syntax { return 0 }
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func (f PlaceholderFile) Name() pref.Name { return "" }
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func (f PlaceholderFile) FullName() pref.FullName { return "" }
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func (f PlaceholderFile) IsPlaceholder() bool { return true }
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func (f PlaceholderFile) Options() pref.ProtoMessage { return descopts.File }
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func (f PlaceholderFile) Path() string { return string(f) }
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func (f PlaceholderFile) Package() pref.FullName { return "" }
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func (f PlaceholderFile) Imports() pref.FileImports { return emptyFiles }
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func (f PlaceholderFile) Messages() pref.MessageDescriptors { return emptyMessages }
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func (f PlaceholderFile) Enums() pref.EnumDescriptors { return emptyEnums }
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func (f PlaceholderFile) Extensions() pref.ExtensionDescriptors { return emptyExtensions }
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func (f PlaceholderFile) Services() pref.ServiceDescriptors { return emptyServices }
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func (f PlaceholderFile) ProtoType(pref.FileDescriptor) { return }
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func (f PlaceholderFile) ProtoInternal(pragma.DoNotImplement) { return }
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// PlaceholderEnum is a placeholder, representing only the full name.
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type PlaceholderEnum pref.FullName
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func (e PlaceholderEnum) ParentFile() pref.FileDescriptor { return nil }
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func (e PlaceholderEnum) Parent() pref.Descriptor { return nil }
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func (e PlaceholderEnum) Index() int { return 0 }
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func (e PlaceholderEnum) Syntax() pref.Syntax { return 0 }
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func (e PlaceholderEnum) Name() pref.Name { return pref.FullName(e).Name() }
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func (e PlaceholderEnum) FullName() pref.FullName { return pref.FullName(e) }
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func (e PlaceholderEnum) IsPlaceholder() bool { return true }
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func (e PlaceholderEnum) Options() pref.ProtoMessage { return descopts.Enum }
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func (e PlaceholderEnum) Values() pref.EnumValueDescriptors { return emptyEnumValues }
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func (e PlaceholderEnum) ReservedNames() pref.Names { return emptyNames }
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func (e PlaceholderEnum) ReservedRanges() pref.EnumRanges { return emptyEnumRanges }
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func (e PlaceholderEnum) ProtoType(pref.EnumDescriptor) { return }
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func (e PlaceholderEnum) ProtoInternal(pragma.DoNotImplement) { return }
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// PlaceholderMessage is a placeholder, representing only the full name.
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type PlaceholderMessage pref.FullName
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func (m PlaceholderMessage) ParentFile() pref.FileDescriptor { return nil }
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func (m PlaceholderMessage) Parent() pref.Descriptor { return nil }
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func (m PlaceholderMessage) Index() int { return 0 }
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func (m PlaceholderMessage) Syntax() pref.Syntax { return 0 }
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func (m PlaceholderMessage) Name() pref.Name { return pref.FullName(m).Name() }
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func (m PlaceholderMessage) FullName() pref.FullName { return pref.FullName(m) }
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func (m PlaceholderMessage) IsPlaceholder() bool { return true }
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func (m PlaceholderMessage) Options() pref.ProtoMessage { return descopts.Message }
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func (m PlaceholderMessage) IsMapEntry() bool { return false }
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func (m PlaceholderMessage) Fields() pref.FieldDescriptors { return emptyFields }
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func (m PlaceholderMessage) Oneofs() pref.OneofDescriptors { return emptyOneofs }
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func (m PlaceholderMessage) ReservedNames() pref.Names { return emptyNames }
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func (m PlaceholderMessage) ReservedRanges() pref.FieldRanges { return emptyFieldRanges }
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func (m PlaceholderMessage) RequiredNumbers() pref.FieldNumbers { return emptyFieldNumbers }
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func (m PlaceholderMessage) ExtensionRanges() pref.FieldRanges { return emptyFieldRanges }
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func (m PlaceholderMessage) ExtensionRangeOptions(int) pref.ProtoMessage { panic("index out of range") }
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func (m PlaceholderMessage) Messages() pref.MessageDescriptors { return emptyMessages }
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func (m PlaceholderMessage) Enums() pref.EnumDescriptors { return emptyEnums }
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func (m PlaceholderMessage) Extensions() pref.ExtensionDescriptors { return emptyExtensions }
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func (m PlaceholderMessage) ProtoType(pref.MessageDescriptor) { return }
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func (m PlaceholderMessage) ProtoInternal(pragma.DoNotImplement) { return }
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