mcs/tools/mono-symbolicate/StackFrameData.cs

   1 using System;
   2 using System.Text.RegularExpressions;
   3 using System.Globalization;
   4
   5 namespace Mono
   6 {
   7         class StackFrameData
   8         {
   9                 static Regex regex = new Regex (@"\w*at (?<Method>.+) *(\[0x(?<IL>.+)\]|<0x.+ \+ 0x(?<NativeOffset>.+)>( (?<MethodIndex>\d+)|)) in <(?<MVID>[^>#]+)(#(?<AOTID>[^>]+)|)>:0");
  10
  11                 public readonly string TypeFullName;
  12                 public readonly string MethodSignature;
  13                 public readonly int Offset;
  14                 public readonly bool IsILOffset;
  15                 public readonly uint MethodIndex;
  16                 public readonly string Line;
  17                 public readonly string Mvid;
  18                 public readonly string Aotid;
  19
  20                 public string File { get; private set; }
  21                 public int LineNumber { get; private set; }
  22
  23                 private StackFrameData (string line, string typeFullName, string methodSig, int offset, bool isILOffset, uint methodIndex, string mvid, string aotid)
  24                 {
  25                         LineNumber = -1;
  26
  27                         Line = line;
  28                         TypeFullName = typeFullName;
  29                         MethodSignature = methodSig;
  30                         Offset = offset;
  31                         IsILOffset = isILOffset;
  32                         MethodIndex = methodIndex;
  33                         Mvid = mvid;
  34                         Aotid = aotid;
  35                 }
  36
  37                 public static bool TryParse (string line, out StackFrameData stackFrame)
  38                 {
  39                         stackFrame = null;
  40
  41                         var match = regex.Match (line);
  42                         if (!match.Success)
  43                                 return false;
  44
  45                         string typeFullName, methodSignature;
  46                         var methodStr = match.Groups ["Method"].Value.Trim ();
  47                         if (!ExtractSignatures (methodStr, out typeFullName, out methodSignature))
  48                                 return false;
  49
  50                         var isILOffset = !string.IsNullOrEmpty (match.Groups ["IL"].Value);
  51                         var offsetVarName = (isILOffset)? "IL" : "NativeOffset";
  52                         var offset = int.Parse (match.Groups [offsetVarName].Value, NumberStyles.HexNumber, CultureInfo.InvariantCulture);
  53
  54                         uint methodIndex = 0xffffff;
  55                         if (!string.IsNullOrEmpty (match.Groups ["MethodIndex"].Value))
  56                                 methodIndex = uint.Parse (match.Groups ["MethodIndex"].Value, CultureInfo.InvariantCulture);
  57
  58                         var mvid = match.Groups ["MVID"].Value;
  59                         var aotid = match.Groups ["AOTID"].Value;
  60
  61                         stackFrame = new StackFrameData (line, typeFullName, methodSignature, offset, isILOffset, methodIndex, mvid, aotid);
  62
  63                         return true;
  64                 }
  65
  66                 static bool ExtractSignatures (string str, out string typeFullName, out string methodSignature)
  67                 {
  68                         var methodNameEnd = str.IndexOf ('(');
  69                         if (methodNameEnd == -1) {
  70                                 typeFullName = methodSignature = null;
  71                                 return false;
  72                         }
  73
  74                         var typeNameEnd = str.LastIndexOf ('.', methodNameEnd);
  75                         if (typeNameEnd == -1) {
  76                                 typeFullName = methodSignature = null;
  77                                 return false;
  78                         }
  79
  80                         // Adjustment for Type..ctor ()
  81                         if (typeNameEnd > 0 && str [typeNameEnd - 1] == '.') {
  82                                 --typeNameEnd;
  83                         }
  84
  85                         typeFullName = str.Substring (0, typeNameEnd);
  86                         // Remove generic parameters
  87                         typeFullName = Regex.Replace (typeFullName, @"\[[^\[\]]*\]", "");
  88
  89                         methodSignature = str.Substring (typeNameEnd + 1);
  90
  91                         return true;
  92                 }
  93
  94                 internal void SetLocation (string file, int lineNumber)
  95                 {
  96                         File = file;
  97                         LineNumber = lineNumber;
  98                 }
  99
 100                 public override string ToString ()
 101                 {
 102                         return string.Format ("{0} in {1}:{2} ", Line.Substring (0, Line.IndexOf(" in <", StringComparison.Ordinal)), File, LineNumber);
 103                 }
 104         }
 105 }