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ILGenerator.MarkSequencePoint Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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

Namespace:  System.Reflection.Emit
Assembly:  mscorlib (in mscorlib.dll)

Syntax

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

public virtual void MarkSequencePoint(
    ISymbolDocumentWriter document,
    int startLine,
    int startColumn,
    int endLine,
    int endColumn
)

Parameters

  • startLine
    Type: System.Int32
    The line where the sequence point begins.
  • startColumn
    Type: System.Int32
    The column in the line where the sequence point begins.
  • endLine
    Type: System.Int32
    The line where the sequence point ends.
  • endColumn
    Type: System.Int32
    The column in the line where the sequence point ends.

Exceptions

Exception Condition
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.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.