5 using System.Collections.Generic;
8 using Mono.Collections.Generic;
12 class AssemblyLocationProvider
14 AssemblyDefinition assembly;
17 public AssemblyLocationProvider (string assemblyPath, Logger logger)
19 assemblyPath = Path.GetFullPath (assemblyPath);
22 if (!File.Exists (assemblyPath))
23 throw new ArgumentException ("assemblyPath does not exist: "+ assemblyPath);
25 var readerParameters = new ReaderParameters { ReadSymbols = true };
26 assembly = AssemblyDefinition.ReadAssembly (assemblyPath, readerParameters);
29 public bool TryResolveLocation (StackFrameData sfData, SeqPointInfo seqPointInfo)
31 if (!assembly.MainModule.HasSymbols)
34 TypeDefinition type = null;
35 var nested = sfData.TypeFullName.Split ('+');
36 var types = assembly.MainModule.Types;
37 foreach (var ntype in nested) {
39 // Use namespace first time.
40 type = types.FirstOrDefault (t => t.FullName == ntype);
42 type = types.FirstOrDefault (t => t.Name == ntype);
46 logger.LogWarning ("Could not find type: {0}", ntype);
50 types = type.NestedTypes;
53 var parensStart = sfData.MethodSignature.IndexOf ('(');
54 var methodName = sfData.MethodSignature.Substring (0, parensStart).TrimEnd ();
55 var methodParameters = sfData.MethodSignature.Substring (parensStart);
56 var method = type.Methods.FirstOrDefault (m => CompareName (m, methodName) && CompareParameters (m.Parameters, methodParameters));
58 logger.LogWarning ("Could not find method: {0}", methodName);
63 if (sfData.IsILOffset) {
64 ilOffset = sfData.Offset;
66 if (seqPointInfo == null)
69 ilOffset = seqPointInfo.GetILOffset (method.MetadataToken.ToInt32 (), sfData.MethodIndex, sfData.Offset);
75 SequencePoint sp = null;
76 foreach (var instr in method.Body.Instructions) {
77 if (instr.SequencePoint != null)
78 sp = instr.SequencePoint;
80 if (instr.Offset >= ilOffset) {
81 sfData.SetLocation (sp.Document.Url, sp.StartLine);
89 static bool CompareName (MethodDefinition candidate, string expected)
91 if (candidate.Name == expected)
94 if (!candidate.HasGenericParameters)
97 var genStart = expected.IndexOf ('[');
101 if (candidate.Name != expected.Substring (0, genStart))
105 for (int pos = genStart; pos < expected.Length; ++pos) {
106 if (expected [pos] == ',')
110 return candidate.GenericParameters.Count == arity;
113 static bool CompareParameters (Collection<ParameterDefinition> candidate, string expected)
115 var builder = new StringBuilder ();
116 builder.Append ("(");
118 for (int i = 0; i < candidate.Count; i++) {
119 var parameter = candidate [i];
121 builder.Append (", ");
123 if (parameter.ParameterType.IsSentinel)
124 builder.Append ("...,");
126 var pt = parameter.ParameterType;
127 if (!string.IsNullOrEmpty (pt.Namespace)) {
128 builder.Append (pt.Namespace);
129 builder.Append (".");
132 FormatElementType (pt, builder);
134 builder.Append (" ");
135 builder.Append (parameter.Name);
138 builder.Append (")");
140 return builder.ToString () == expected;
143 static void FormatElementType (TypeReference tr, StringBuilder builder)
145 var ts = tr as TypeSpecification;
147 if (ts.IsByReference) {
148 FormatElementType (ts.ElementType, builder);
149 builder.Append ("&");
153 var array = ts as ArrayType;
155 FormatElementType (ts.ElementType, builder);
156 builder.Append ("[");
158 for (int ii = 0; ii < array.Rank - 1; ++ii) {
159 builder.Append (",");
162 builder.Append ("]");
167 builder.Append (tr.Name);