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I’m new to C# and am reading code with /*!*/ in what seem like strange places. For instance class methods defined as:
protected override OptionsParser/*!*/ CreateOptionsParser()
protected override void ParseHostOptions(string/*!*/[]/*!*/ args)
Unfortunately /*!*/ is not googleable. What does it mean?
It’s likely an attempt to get Spec# style annotations into a non-Spec# build. The ! annotation in Spec# means the value is not-null. The author is likely trying to indicate that both the return values, args array and all of the elements in args are always non-null values.
Spec# Link:
Quick Spec# Overview:
Spec# is a .Net language created via a Microsoft Research Project. It is an extension of the C# language which attempts to embed code contracts into the type system. The most prominent are non-nullable types (indicated with ! after the type name), checked exceptions and pre/post conditions.