private Task <HostCompilationStartAnalysisScope> GetCompilationAnalysisScopeCoreAsync(
AnalyzerAndOptions analyzerAndOptions,
HostSessionStartAnalysisScope sessionScope,
AnalyzerExecutor analyzerExecutor)
{
Func <Compilation, Task <HostCompilationStartAnalysisScope> > getTask = comp =>
{
return(Task.Run(async() =>
{
var compilationAnalysisScope = new HostCompilationStartAnalysisScope(sessionScope);
await analyzerExecutor.ExecuteCompilationStartActionsAsync(sessionScope.CompilationStartActions, compilationAnalysisScope).ConfigureAwait(false);
return compilationAnalysisScope;
}, analyzerExecutor.CancellationToken));
};
var callback = new ConditionalWeakTable <Compilation, Task <HostCompilationStartAnalysisScope> > .CreateValueCallback(getTask);
var compilationActionsMap = _compilationScopeMap.GetOrAdd(analyzerAndOptions, new ConditionalWeakTable <Compilation, Task <HostCompilationStartAnalysisScope> >());
return(compilationActionsMap.GetValue(analyzerExecutor.Compilation, callback));
}
