public BidirectionalMap(IEnumerable <KeyValuePair <TKey, TValue> > pairs)
{
_forwardMap = ImmutableDictionary.CreateRange <TKey, TValue>(pairs);
_backwardMap = ImmutableDictionary.CreateRange <TValue, TKey>(
pairs.Select(p => KeyValuePairUtil.Create(p.Value, p.Key))
);
}
public void GetEffectiveDiagnostics()
{
var c = CSharpCompilation.Create("c", options: new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary).
WithSpecificDiagnosticOptions(
new[] { KeyValuePairUtil.Create($"CS{(int)ErrorCode.WRN_AlwaysNull:D4}", ReportDiagnostic.Suppress) }));
var d1 = SimpleDiagnostic.Create(MessageProvider.Instance, (int)ErrorCode.WRN_AlignmentMagnitude);
var d2 = SimpleDiagnostic.Create(MessageProvider.Instance, (int)ErrorCode.WRN_AlwaysNull);
var ds = new[] { null, d1, d2 };
var filtered = CompilationWithAnalyzers.GetEffectiveDiagnostics(ds, c);
// overwrite the original value to test eagerness:
ds[1] = null;
AssertEx.Equal(new[] { d1 }, filtered);
}