Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / clr / src / BCL / System / Diagnostics / Stackframe.cs / 1 / Stackframe.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== namespace System.Diagnostics { using System.Text; using System; using System.IO; using System.Reflection; using System.Security.Permissions; // There is no good reason for the methods of this class to be virtual. // In order to ensure trusted code can trust the data it gets from a // StackTrace, we use an InheritanceDemand to prevent partially-trusted // subclasses. [SecurityPermission(SecurityAction.InheritanceDemand, UnmanagedCode=true)] [Serializable()] [System.Runtime.InteropServices.ComVisible(true)] public class StackFrame { private MethodBase method; private int offset; private int ILOffset; private String strFileName; private int iLineNumber; private int iColumnNumber; internal void InitMembers() { method = null; offset = OFFSET_UNKNOWN; ILOffset = OFFSET_UNKNOWN; strFileName = null; iLineNumber = 0; iColumnNumber = 0; } // Constructs a StackFrame corresponding to the active stack frame. public StackFrame() { InitMembers(); BuildStackFrame (0 + StackTrace.METHODS_TO_SKIP, false);// iSkipFrames=0 } // Constructs a StackFrame corresponding to the active stack frame. public StackFrame(bool fNeedFileInfo) { InitMembers(); BuildStackFrame (0 + StackTrace.METHODS_TO_SKIP, fNeedFileInfo);// iSkipFrames=0 } // Constructs a StackFrame corresponding to a calling stack frame. // public StackFrame(int skipFrames) { InitMembers(); BuildStackFrame (skipFrames + StackTrace.METHODS_TO_SKIP, false); } // Constructs a StackFrame corresponding to a calling stack frame. // public StackFrame(int skipFrames, bool fNeedFileInfo) { InitMembers(); BuildStackFrame (skipFrames + StackTrace.METHODS_TO_SKIP, fNeedFileInfo); } // Called from the class "StackTrace" // internal StackFrame(bool DummyFlag1, bool DummyFlag2) { InitMembers(); } // Constructs a "fake" stack frame, just containing the given file // name and line number. Use when you don't want to use the // debugger's line mapping logic. // public StackFrame(String fileName, int lineNumber) { InitMembers(); BuildStackFrame (StackTrace.METHODS_TO_SKIP, false); strFileName = fileName; iLineNumber = lineNumber; iColumnNumber = 0; } // Constructs a "fake" stack frame, just containing the given file // name, line number and column number. Use when you don't want to // use the debugger's line mapping logic. // public StackFrame(String fileName, int lineNumber, int colNumber) { InitMembers(); BuildStackFrame (StackTrace.METHODS_TO_SKIP, false); strFileName = fileName; iLineNumber = lineNumber; iColumnNumber = colNumber; } // Constant returned when the native or IL offset is unknown public const int OFFSET_UNKNOWN = -1; internal virtual void SetMethodBase (MethodBase mb) { method = mb; } internal virtual void SetOffset (int iOffset) { offset = iOffset; } internal virtual void SetILOffset (int iOffset) { ILOffset = iOffset; } internal virtual void SetFileName (String strFName) { strFileName = strFName; } internal virtual void SetLineNumber (int iLine) { iLineNumber = iLine; } internal virtual void SetColumnNumber (int iCol) { iColumnNumber = iCol; } // Returns the method the frame is executing // public virtual MethodBase GetMethod () { return method; } // Returns the offset from the start of the native (jitted) code for the // method being executed // public virtual int GetNativeOffset () { return offset; } // Returns the offset from the start of the IL code for the // method being executed. This offset may be approximate depending // on whether the jitter is generating debuggable code or not. // public virtual int GetILOffset() { return ILOffset; } // Returns the file name containing the code being executed. This // information is normally extracted from the debugging symbols // for the executable. // public virtual String GetFileName() { if (strFileName != null) { // This isn't really correct, but we don't have // a permission that protects discovery of potentially // local urls so we'll use this. FileIOPermission perm = new FileIOPermission( PermissionState.None ); perm.AllFiles = FileIOPermissionAccess.PathDiscovery; perm.Demand(); } return strFileName; } // Returns the line number in the file containing the code being executed. // This information is normally extracted from the debugging symbols // for the executable. // public virtual int GetFileLineNumber() { return iLineNumber; } // Returns the column number in the line containing the code being executed. // This information is normally extracted from the debugging symbols // for the executable. // public virtual int GetFileColumnNumber() { return iColumnNumber; } // Builds a readable representation of the stack frame // public override String ToString() { StringBuilder sb = new StringBuilder(255); if (method != null) { sb.Append(method.Name); // deal with the generic portion of the method if (method is MethodInfo && ((MethodInfo)method).IsGenericMethod) { Type[] typars = ((MethodInfo)method).GetGenericArguments(); sb.Append ("<"); int k=0; bool fFirstTyParam = true; while (k < typars.Length) { if (fFirstTyParam == false) sb.Append (","); else fFirstTyParam = false; sb.Append (typars[k].Name); k++; } sb.Append (">"); } sb.Append(" at offset "); if (offset == OFFSET_UNKNOWN) sb.Append(""); else sb.Append(offset); sb.Append(" in file:line:column "); bool useFileName = (strFileName != null); if (useFileName) { try { // This isn't really correct, but we don't have // a permission that protects discovery of potentially // local urls so we'll use this. FileIOPermission perm = new FileIOPermission( PermissionState.None ); perm.AllFiles = FileIOPermissionAccess.PathDiscovery; perm.Demand(); } catch (System.Security.SecurityException) { useFileName = false; } } if (!useFileName) sb.Append(" "); else sb.Append(strFileName); sb.Append(":"); sb.Append(iLineNumber); sb.Append(":"); sb.Append(iColumnNumber); } else { sb.Append(" "); } sb.Append(Environment.NewLine); return sb.ToString(); } private void BuildStackFrame(int skipFrames, bool fNeedFileInfo) { StackFrameHelper StackF = new StackFrameHelper(fNeedFileInfo, null); StackTrace.GetStackFramesInternal (StackF, 0, null); int iNumOfFrames = StackF.GetNumberOfFrames(); skipFrames += StackTrace.CalculateFramesToSkip (StackF, iNumOfFrames); if ((iNumOfFrames - skipFrames) > 0) { method = StackF.GetMethodBase (skipFrames); offset = StackF.GetOffset (skipFrames); ILOffset = StackF.GetILOffset (skipFrames); if (fNeedFileInfo) { strFileName = StackF.GetFilename (skipFrames); iLineNumber = StackF.GetLineNumber (skipFrames); iColumnNumber = StackF.GetColumnNumber (skipFrames); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- configsystem.cs
- PenLineJoinValidation.cs
- MailAddress.cs
- OdbcConnectionStringbuilder.cs
- DesignerActionKeyboardBehavior.cs
- ToolTipService.cs
- FirstMatchCodeGroup.cs
- XmlCollation.cs
- SqlStatistics.cs
- BitmapImage.cs
- AsyncPostBackTrigger.cs
- SendingRequestEventArgs.cs
- Size3DConverter.cs
- SkipQueryOptionExpression.cs
- OleDbCommand.cs
- SkipStoryboardToFill.cs
- CapabilitiesPattern.cs
- InternalConfigRoot.cs
- ProfileSection.cs
- ParallelTimeline.cs
- KoreanLunisolarCalendar.cs
- RegionData.cs
- ClockController.cs
- GroupDescription.cs
- XomlCompilerHelpers.cs
- StateWorkerRequest.cs
- FormViewCommandEventArgs.cs
- GestureRecognizer.cs
- PackageFilter.cs
- SecurityState.cs
- DecimalSumAggregationOperator.cs
- VideoDrawing.cs
- AssociationType.cs
- ContextMenuStripGroupCollection.cs
- LightweightCodeGenerator.cs
- OrderedDictionary.cs
- EncryptedPackageFilter.cs
- UIElement.cs
- IPAddress.cs
- PropertyRef.cs
- ObjectStateEntryDbDataRecord.cs
- ColorInterpolationModeValidation.cs
- StorageComplexPropertyMapping.cs
- FormatControl.cs
- GuidConverter.cs
- PartitionResolver.cs
- GridPattern.cs
- MessageSecurityProtocol.cs
- SqlConnectionString.cs
- XappLauncher.cs
- XmlSchemaSequence.cs
- MachineKey.cs
- VoiceSynthesis.cs
- PageTheme.cs
- ResXResourceSet.cs
- RemotingAttributes.cs
- ComplexPropertyEntry.cs
- Parameter.cs
- GeometryConverter.cs
- XamlTypeMapper.cs
- ModelItemExtensions.cs
- SqlConnectionFactory.cs
- DragEventArgs.cs
- KeyConverter.cs
- TypeHelpers.cs
- MediaSystem.cs
- CorruptStoreException.cs
- StringExpressionSet.cs
- GorillaCodec.cs
- FilterQueryOptionExpression.cs
- ConfigurationLocationCollection.cs
- DoubleLink.cs
- _IPv4Address.cs
- Soap.cs
- SqlEnums.cs
- SourceFileInfo.cs
- PasswordTextContainer.cs
- cookiecontainer.cs
- MemberInfoSerializationHolder.cs
- DynamicPropertyHolder.cs
- XmlElementCollection.cs
- TableLayoutPanel.cs
- Hex.cs
- SelectorItemAutomationPeer.cs
- TogglePatternIdentifiers.cs
- UiaCoreProviderApi.cs
- Listener.cs
- Message.cs
- WebPartDisplayModeCollection.cs
- SecurityManager.cs
- ControlTemplate.cs
- ConnectionPointCookie.cs
- ellipse.cs
- DbConnectionPoolCounters.cs
- ToolStripGripRenderEventArgs.cs
- HostingMessageProperty.cs
- WsatRegistrationHeader.cs
- Invariant.cs
- SearchExpression.cs
- PagerStyle.cs