Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Diagnostics / Stackframe.cs / 1305376 / 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. // [System.Security.SecuritySafeCritical] // auto-generated 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. // [System.Security.SecuritySafeCritical] // auto-generated 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. // [System.Security.SecuritySafeCritical] // auto-generated 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. // [System.Security.SecuritySafeCritical] // auto-generated 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 // [System.Security.SecuritySafeCritical] // auto-generated 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
- ControlDesignerState.cs
- StreamUpgradeBindingElement.cs
- entitydatasourceentitysetnameconverter.cs
- Rule.cs
- RepeatBehaviorConverter.cs
- Sentence.cs
- FontFamilyValueSerializer.cs
- ControlBindingsCollection.cs
- DataBoundControlDesigner.cs
- ProvideValueServiceProvider.cs
- ElementsClipboardData.cs
- BitmapEffectDrawing.cs
- ToolStripItemClickedEventArgs.cs
- XmlSchemaFacet.cs
- RequestSecurityTokenSerializer.cs
- NetStream.cs
- HttpHeaderCollection.cs
- GacUtil.cs
- DateTimeUtil.cs
- UnmanagedMemoryStream.cs
- SqlCacheDependency.cs
- ZipIOZip64EndOfCentralDirectoryLocatorBlock.cs
- SoapTypeAttribute.cs
- ReferenceTypeElement.cs
- TextEditorTables.cs
- TextServicesContext.cs
- PrintDialog.cs
- TreeNodeEventArgs.cs
- XsdDuration.cs
- DataContract.cs
- BadImageFormatException.cs
- CssStyleCollection.cs
- SettingsContext.cs
- TreeNodeEventArgs.cs
- ImageSource.cs
- ReadingWritingEntityEventArgs.cs
- ReceiveMessageAndVerifySecurityAsyncResultBase.cs
- VectorCollection.cs
- EntitySqlQueryCacheKey.cs
- TextSegment.cs
- NetSectionGroup.cs
- CachedBitmap.cs
- Binding.cs
- BitmapCodecInfoInternal.cs
- SaveFileDialog.cs
- Cursor.cs
- InfiniteIntConverter.cs
- IntegerCollectionEditor.cs
- BufferAllocator.cs
- RSAProtectedConfigurationProvider.cs
- RecordBuilder.cs
- QuaternionKeyFrameCollection.cs
- CultureInfo.cs
- IncrementalCompileAnalyzer.cs
- BinarySerializer.cs
- Root.cs
- ValueTypeFieldReference.cs
- ChannelPool.cs
- SqlEnums.cs
- TextClipboardData.cs
- DrawingBrush.cs
- TextTabProperties.cs
- LoginUtil.cs
- ConstraintCollection.cs
- CustomErrorsSection.cs
- PrintPreviewDialog.cs
- CodeIdentifiers.cs
- Privilege.cs
- DocumentReferenceCollection.cs
- MDIControlStrip.cs
- FieldTemplateFactory.cs
- MouseWheelEventArgs.cs
- AggregateException.cs
- UnauthorizedWebPart.cs
- GZipDecoder.cs
- TrueReadOnlyCollection.cs
- xml.cs
- ControlBuilder.cs
- Substitution.cs
- TemplateXamlParser.cs
- TextSelectionHelper.cs
- BuildResultCache.cs
- ClientUrlResolverWrapper.cs
- IResourceProvider.cs
- FacetDescriptionElement.cs
- SecurityDocument.cs
- SynchronizedDispatch.cs
- GuidTagList.cs
- Keywords.cs
- CardSpaceException.cs
- TraceSource.cs
- SocketConnection.cs
- ModelItemKeyValuePair.cs
- DefaultAutoFieldGenerator.cs
- PenContexts.cs
- Suspend.cs
- DLinqTableProvider.cs
- Rfc4050KeyFormatter.cs
- UserControlCodeDomTreeGenerator.cs
- FilterException.cs