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C#: Add models as data tests for compound assignment operators. #21989

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Merged
michaelnebel merged 1 commit into from
Jun 15, 2026
+75 −24
Merged

C#: Add models as data tests for compound assignment operators. #21989

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27 changes: 27 additions & 0 deletions csharp/ql/test/library-tests/dataflow/external-models/ExternalFlow.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -442,4 +442,31 @@ public void M8(object o)

static void Sink(object o) { }
}

// Test operator overloads
public class N
{
public void operator +=(N y) => throw null;

public void operator checked +=(N y) => throw null;

public void M1(N n)
{
var n0 = new N();
n += n0;
Sink(n);
}

public void M2(N n)
{
var n0 = new N();
checked
{
n += n0;
}
Sink(n);
}

static void Sink(object o) { }
}
}
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