forked from sin365/AxibugEmuOnline
83 lines
3.3 KiB
C#
83 lines
3.3 KiB
C#
#region Copyright notice and license
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// 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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#endregion
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using System.Collections.Generic;
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using System.Diagnostics;
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namespace Google.Protobuf.Reflection
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{
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// Implementation note: The descriptors which don't derive from this class are FileDescriptor
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// and FeatureSetDescriptor - the latter of which isn't a descriptor in exactly the same way
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// that the others are anyway.
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/// <summary>
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/// Base class for nearly all descriptors, providing common functionality.
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/// </summary>
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[DebuggerDisplay("Type = {GetType().Name,nq}, FullName = {FullName}")]
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public abstract class DescriptorBase : IDescriptor
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{
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internal DescriptorBase(FileDescriptor file, string fullName, int index, FeatureSetDescriptor features)
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{
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File = file;
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FullName = fullName;
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Index = index;
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Features = features;
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}
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/// <summary>
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/// The feature set for this descriptor, including inherited features.
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/// This is internal as external users should use the properties on individual
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/// descriptor types (e.g. FieldDescriptor.IsPacked) rather than querying features directly.
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/// </summary>
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internal FeatureSetDescriptor Features { get; }
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/// <value>
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/// The index of this descriptor within its parent descriptor.
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/// </value>
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/// <remarks>
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/// This returns the index of this descriptor within its parent, for
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/// this descriptor's type. (There can be duplicate values for different
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/// types, e.g. one enum type with index 0 and one message type with index 0.)
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/// </remarks>
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public int Index { get; }
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/// <summary>
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/// Returns the name of the entity (field, message etc) being described.
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/// </summary>
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public abstract string Name { get; }
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/// <summary>
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/// The fully qualified name of the descriptor's target.
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/// </summary>
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public string FullName { get; }
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/// <value>
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/// The file this descriptor was declared in.
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/// </value>
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public FileDescriptor File { get; }
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/// <summary>
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/// The declaration information about the descriptor, or null if no declaration information
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/// is available for this descriptor.
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/// </summary>
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/// <remarks>
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/// This information is typically only available for dynamically loaded descriptors,
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/// for example within a protoc plugin where the full descriptors, including source info,
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/// are passed to the code by protoc.
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/// </remarks>
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public DescriptorDeclaration Declaration => File.GetDeclaration(this);
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/// <summary>
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/// Retrieves the list of nested descriptors corresponding to the given field number, if any.
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/// If the field is unknown or not a nested descriptor list, return null to terminate the search.
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/// The default implementation returns null.
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/// </summary>
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internal virtual IReadOnlyList<DescriptorBase> GetNestedDescriptorListForField(int fieldNumber) => null;
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}
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} |