Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / 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. // // ==--== 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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ValidationSummaryDesigner.cs
- ScriptControlDescriptor.cs
- SingleQueryOperator.cs
- UshortList2.cs
- CachedPathData.cs
- SessionStateModule.cs
- PenThreadWorker.cs
- ByteAnimation.cs
- StringSource.cs
- EventLogPermissionHolder.cs
- NamedPermissionSet.cs
- PolicyLevel.cs
- SystemIPGlobalProperties.cs
- RadialGradientBrush.cs
- x509store.cs
- QueueProcessor.cs
- Compiler.cs
- ValueProviderWrapper.cs
- IfJoinedCondition.cs
- DataObjectFieldAttribute.cs
- TerminatorSinks.cs
- DataGridViewRowHeightInfoPushedEventArgs.cs
- Exceptions.cs
- FaultHandlingFilter.cs
- PopupEventArgs.cs
- ExpressionTextBox.xaml.cs
- TypedAsyncResult.cs
- RelatedImageListAttribute.cs
- DynamicField.cs
- Int32Storage.cs
- ReaderWriterLock.cs
- NullRuntimeConfig.cs
- ObjectDataSourceEventArgs.cs
- ServiceX509SecurityTokenProvider.cs
- BooleanAnimationUsingKeyFrames.cs
- CornerRadiusConverter.cs
- DataBindingList.cs
- Descriptor.cs
- GroupQuery.cs
- HtmlImage.cs
- DetailsViewInsertEventArgs.cs
- SqlTypeSystemProvider.cs
- NonSerializedAttribute.cs
- DesignConnection.cs
- WindowsComboBox.cs
- Path.cs
- AuthenticationException.cs
- ConsumerConnectionPointCollection.cs
- StateManagedCollection.cs
- SqlTriggerAttribute.cs
- StorageEntityContainerMapping.cs
- MetadataArtifactLoader.cs
- LoginStatusDesigner.cs
- HandleDictionary.cs
- Highlights.cs
- ZoomPercentageConverter.cs
- ColorDialog.cs
- DupHandleConnectionReader.cs
- WorkflowViewStateService.cs
- CodeGenerator.cs
- QuotedStringFormatReader.cs
- FullTextBreakpoint.cs
- SchemaUtility.cs
- GuidConverter.cs
- BulletChrome.cs
- LayoutManager.cs
- RenderData.cs
- dbdatarecord.cs
- ViewGenResults.cs
- SignalGate.cs
- autovalidator.cs
- FormClosedEvent.cs
- XmlComplianceUtil.cs
- ComAdminWrapper.cs
- RegexFCD.cs
- SqlGenerator.cs
- NaturalLanguageHyphenator.cs
- ListItemParagraph.cs
- ToolBarPanel.cs
- DataBoundControlAdapter.cs
- ISAPIRuntime.cs
- TextPenaltyModule.cs
- PrefixQName.cs
- PageFunction.cs
- SvcMapFile.cs
- UnsafePeerToPeerMethods.cs
- PageRequestManager.cs
- PassportPrincipal.cs
- HtmlLinkAdapter.cs
- PrefixHandle.cs
- ToolboxComponentsCreatingEventArgs.cs
- SchemaImporterExtension.cs
- GroupedContextMenuStrip.cs
- RegexTypeEditor.cs
- CursorConverter.cs
- GC.cs
- DesignerTransaction.cs
- Context.cs
- XmlSchemaComplexContentRestriction.cs
- SecurityContextSecurityTokenAuthenticator.cs