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Darwinism/Google.Protobuf/ICustomDiagnosticMessage.vb

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#Region "Copyright notice and license"
' Protocol Buffers - Google's data interchange format
' Copyright 2016 Google Inc. All rights reserved.
' https://developers.google.com/protocol-buffers/
'
' Redistribution and use in source and binary forms, with or without
' modification, are permitted provided that the following conditions are
' met:
'
' * Redistributions of source code must retain the above copyright
' notice, this list of conditions and the following disclaimer.
' * Redistributions in binary form must reproduce the above
' copyright notice, this list of conditions and the following disclaimer
' in the documentation and/or other materials provided with the
' distribution.
' * Neither the name of Google Inc. nor the names of its
' contributors may be used to endorse or promote products derived from
' this software without specific prior written permission.
'
' THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
' "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
' LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
' A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
' OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
' SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
' LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
' DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
' THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
' (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
' OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#End Region
Namespace Google.Protobuf
''' <summary>
''' A message type that has a custom string format for diagnostic purposes.
''' </summary>
''' <remarks>
''' <para>
''' Calling <see cref="Object.ToString"/> on a generated message type normally
''' returns the JSON representation. If a message type implements this interface,
''' then the <see cref="ToDiagnosticString"/> method will be called instead of the regular
''' JSON formatting code, but only when <c>ToString()</c> is called either on the message itself
''' or on another message which contains it. This does not affect the normal JSON formatting of
''' the message.
''' </para>
''' <para>
''' For example, if you create a proto message representing a GUID, the internal
''' representation may be a <c>bytes</c> field or four <c>fixed32</c> fields. However, when debugging
''' it may be more convenient to see a result in the same format as <see cref="System.Guid"/> provides.
''' </para>
''' <para>This interface extends <see cref="IMessage"/> to avoid it accidentally being implemented
''' on types other than messages, where it would not be used by anything in the framework.</para>
''' </remarks>
Public Interface ICustomDiagnosticMessage
Inherits IMessage
''' <summary>
''' Returns a string representation of this object, for diagnostic purposes.
''' </summary>
''' <remarks>
''' This method is called when a message is formatted as part of a <see cref="Object.ToString"/>
''' call. It does not affect the JSON representation used by <see cref="JsonFormatter"/> other than
''' in calls to <see cref="JsonFormatter.ToDiagnosticString(IMessage)"/>. While it is recommended
''' that the result is valid JSON, this is never assumed by the Protobuf library.
''' </remarks>
''' <returns>A string representation of this object, for diagnostic purposes.</returns>
Function ToDiagnosticString() As String
End Interface
End Namespace