System.Xml.Xsl.IlGen.GenerateHelper.DebugSequencePoint C# (CSharp) Method

        public void DebugSequencePoint(ISourceLineInfo sourceInfo)
        {
            Debug.Assert(_isDebug && _lastSourceInfo != null);
            Debug.Assert(sourceInfo != null);

            // When emitting sequence points, be careful to always follow two rules:
            // 1. Never emit adjacent sequence points, as this messes up the debugger.  We guarantee this by
            //    always emitting a Nop before every sequence point.
            // 2. The runtime enforces a rule that BP sequence points can only appear at zero stack depth,
            //    or if a NOP instruction is placed before them.  We guarantee this by always emitting a Nop
            //    before every sequence point.
            //    <spec>http://devdiv/Documents/Whidbey/CLR/CurrentSpecs/Debugging%20and%20Profiling/JIT-Determined%20Sequence%20Points.doc</spec>
            Emit(OpCodes.Nop);
            MarkSequencePoint(sourceInfo);
        }