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Fix TraceParserGen to generate meaningful parser for WPF #1406

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@oatkins oatkins commented Apr 6, 2021

This attempts to resolve #1351 and supports creating a parser for the Microsoft-Windows-WPF provider from the manifest at C:\Windows\Microsoft.NET\Framework\v4.0.30319\WPF\wpf-etw.man.

See also #554.

Addresses various issues with the generated provider:

  • Enum should not be normalized it if's already PascalCase, so the normalizing logic is skipped if no "_" is present in a field name.
  • RegisterTemplate() seems not to exist; source.RegisterEventTemplate is apparently what was intended.
  • Task GUID constants were previously referenced but not generated.
  • Template class names were incorrectly referenced.

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ghost commented Apr 6, 2021

CLA assistant check
All CLA requirements met.

@oatkins oatkins force-pushed the fix-trace-parser-gen branch from 72116c4 to df8f9c9 Compare April 6, 2021 21:52
@oatkins oatkins force-pushed the fix-trace-parser-gen branch from df8f9c9 to a727a4d Compare April 6, 2021 21:54
@oatkins oatkins marked this pull request as ready for review April 6, 2021 21:59
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oatkins commented Apr 8, 2021

See also #950 - need to make sure the problems resolved there are not reintroduced here.

@@ -276,8 +304,10 @@ private void GenerateTemplateDefs(TextWriter output)
state = ", state";
}

output.WriteLine(" return new {0}(action, {1}, {2}, \"{3}\", Guid.Empty, {4}, \"{5}\", ProviderGuid, ProviderName {6});",
templateClassName, evnt.Id, evnt.Task, TraceParserGen.ToCSharpName(evnt.TaskName), evnt.Opcode, TraceParserGen.ToCSharpName(evnt.OpcodeName), state);
var taskGuid = string.IsNullOrEmpty(evnt.TaskName) ? "Guid.Empty" : ToCSharpName(evnt.TaskName) + "TaskGuid";
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Shouldn't it check m_taskGuids?
If there is no "eventGUID" attributes in parsed manifest, I think it should return Guid.Empty.

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TraceParserGen: xxxTaskGuid not defined
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