ILGenerator.MarkSequencePoint Method

Definition

Namespace:

System.Reflection.Emit

Assembly:

mscorlib.dll

Marks a sequence point in the Microsoft intermediate language (MSIL) stream.

public:
 virtual void MarkSequencePoint(System::Diagnostics::SymbolStore::ISymbolDocumentWriter ^ document, int startLine, int startColumn, int endLine, int endColumn);

public virtual void MarkSequencePoint (System.Diagnostics.SymbolStore.ISymbolDocumentWriter document, int startLine, int startColumn, int endLine, int endColumn);

abstract member MarkSequencePoint : System.Diagnostics.SymbolStore.ISymbolDocumentWriter * int * int * int * int -> unit
override this.MarkSequencePoint : System.Diagnostics.SymbolStore.ISymbolDocumentWriter * int * int * int * int -> unit

Public Overridable Sub MarkSequencePoint (document As ISymbolDocumentWriter, startLine As Integer, startColumn As Integer, endLine As Integer, endColumn As Integer)

Parameters

document

ISymbolDocumentWriter

The document for which the sequence point is being defined.

startLine

Int32

The line where the sequence point begins.

startColumn

Int32

The column in the line where the sequence point begins.

endLine

Int32

The line where the sequence point ends.

endColumn

Int32

The column in the line where the sequence point ends.

Exceptions

ArgumentOutOfRangeException

startLine or endLine is <= 0.

NotSupportedException

This ILGenerator belongs to a DynamicMethod.

Remarks

Line numbers are indexed from 1. Columns are indexed from 0.

The symbolic information normally includes at least one MSIL offset for each source line. When the just-in-time (JIT) compiler is about to compile a method, it asks the profiling services for a list of MSIL offsets that should be preserved. These MSIL offsets are called sequence points.

If the current ILGenerator is associated with a DynamicMethod object, it does not support symbolic information.