// conditional access as a source of 'Possible NRE'
public void M(StringBuilder sb, Analyzers a)
{
sb?.Append("aaa");
a.Builder?.Append("bbb");
sb.Append("ccc");
a.Builder.Append("ddd"); // +QF
}
// 'a.P' == 'a?.P'
public void E(Analyzers a)
{
if (a?.Value != null) return;
if (a != null)
{
var t = a.Value.Length; // possible NRE
}
}
// with dependent analysis
public void P(Analyzers a)
{
var sb = a?.Builder;
if (sb != null)
{
//if (a != null) { }
a?.ToString(); // redundant ?.
}
}