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Lock evaluation scope when not created to prevent threading issues

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Deukhoofd 2019-01-22 16:53:22 +01:00
parent 750d5dab8d
commit 8bd5f7d0af
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1 changed files with 7 additions and 5 deletions
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12
Upsilon/StandardLibraries/StaticScope.cs
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@ -27,11 +27,13 @@ namespace Upsilon.StandardLibraries
{
if (_staticScope != null)
return _staticScope;
var (evaluationScope, boundScope) = CreateStandardLibrary();
_staticScope = evaluationScope;
_staticBoundScope = boundScope;
return _staticScope;
lock (Scope)
{
var (evaluationScope, boundScope) = CreateStandardLibrary();
_staticScope = evaluationScope;
_staticBoundScope = boundScope;
return _staticScope;
}
}
}