/// <summary>
/// Constructor
/// </summary>
/// <param name="kind">Custom debug info kind</param>
/// <param name="data">Raw custom debug info data</param>
public PdbUnknownCustomDebugInfo(PdbCustomDebugInfoKind kind, byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
this.kind = kind;
this.data = data;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="guid">Custom debug info guid</param>
/// <param name="data">Raw custom debug info data</param>
public PdbUnknownCustomDebugInfo(Guid guid, byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
this.kind = PdbCustomDebugInfoKind.Unknown;
this.data = data;
this.guid = guid;
}
PdbCustomDebugInfo ReadRecord(PdbCustomDebugInfoKind recKind, ulong recPosEnd)
{
IMethodDefOrRef method;
byte[] data;
Local local;
int count;
int localIndex;
switch (recKind)
{
case PdbCustomDebugInfoKind.UsingGroups:
count = reader.ReadUInt16();
if (count < 0)
{
return(null);
}
var usingCountRec = new PdbUsingGroupsCustomDebugInfo(count);
for (int i = 0; i < count; i++)
{
usingCountRec.UsingCounts.Add(reader.ReadUInt16());
}
return(usingCountRec);
case PdbCustomDebugInfoKind.ForwardMethodInfo:
method = module.ResolveToken(reader.ReadUInt32(), gpContext) as IMethodDefOrRef;
if (method == null)
{
return(null);
}
return(new PdbForwardMethodInfoCustomDebugInfo(method));
case PdbCustomDebugInfoKind.ForwardModuleInfo:
method = module.ResolveToken(reader.ReadUInt32(), gpContext) as IMethodDefOrRef;
if (method == null)
{
return(null);
}
return(new PdbForwardModuleInfoCustomDebugInfo(method));
case PdbCustomDebugInfoKind.StateMachineHoistedLocalScopes:
if (bodyOpt == null)
{
return(null);
}
count = reader.ReadInt32();
if (count < 0)
{
return(null);
}
var smScope = new PdbStateMachineHoistedLocalScopesCustomDebugInfo(count);
for (int i = 0; i < count; i++)
{
uint startOffset = reader.ReadUInt32();
uint endOffset = reader.ReadUInt32();
if (startOffset > endOffset)
{
return(null);
}
// Try to detect synthesized locals, whose start==end==0. The problem is that endOffset
// read from the PDB is inclusive (add 1 to get 'end'), so a synthesized local and a
// local at [0, 1) will be encoded the same {0, 0}.
if (endOffset == 0)
{
smScope.Scopes.Add(new StateMachineHoistedLocalScope());
}
else
{
var start = GetInstruction(startOffset);
var end = GetInstruction(endOffset + 1);
if (start == null)
{
return(null);
}
smScope.Scopes.Add(new StateMachineHoistedLocalScope(start, end));
}
}
return(smScope);
case PdbCustomDebugInfoKind.StateMachineTypeName:
var name = ReadUnicodeZ(recPosEnd, needZeroChar: true);
if (name == null)
{
return(null);
}
var type = GetNestedType(name);
if (type == null)
{
return(null);
}
return(new PdbStateMachineTypeNameCustomDebugInfo(type));
case PdbCustomDebugInfoKind.DynamicLocals:
if (bodyOpt == null)
{
return(null);
}
count = reader.ReadInt32();
const int dynLocalRecSize = 64 + 4 + 4 + 2 * 64;
if (reader.Position + (ulong)(uint)count * dynLocalRecSize > recPosEnd)
{
return(null);
}
var dynLocListRec = new PdbDynamicLocalsCustomDebugInfo(count);
for (int i = 0; i < count; i++)
{
reader.Position += 64;
int flagsCount = reader.ReadInt32();
if ((uint)flagsCount > 64)
{
return(null);
}
var dynLocRec = new PdbDynamicLocal(flagsCount);
var afterPos = reader.Position;
reader.Position -= 64 + 4;
for (int j = 0; j < flagsCount; j++)
{
dynLocRec.Flags.Add(reader.ReadByte());
}
reader.Position = afterPos;
localIndex = reader.ReadInt32();
// 'const' locals have index -1 but they're encoded as 0 by Roslyn
if (localIndex != 0 && (uint)localIndex >= (uint)bodyOpt.Variables.Count)
{
return(null);
}
var nameEndPos = reader.Position + 2 * 64;
name = ReadUnicodeZ(nameEndPos, needZeroChar: false);
reader.Position = nameEndPos;
local = localIndex < bodyOpt.Variables.Count ? bodyOpt.Variables[localIndex] : null;
// Roslyn writes 0 to localIndex if it's a 'const' local, try to undo that now
if (localIndex == 0 && local != null && local.Name != name)
{
local = null;
}
if (local != null && local.Name == name)
{
name = null;
}
dynLocRec.Name = name;
dynLocRec.Local = local;
dynLocListRec.Locals.Add(dynLocRec);
}
return(dynLocListRec);
case PdbCustomDebugInfoKind.EditAndContinueLocalSlotMap:
data = reader.ReadBytes((int)(recPosEnd - reader.Position));
return(new PdbEditAndContinueLocalSlotMapCustomDebugInfo(data));
case PdbCustomDebugInfoKind.EditAndContinueLambdaMap:
data = reader.ReadBytes((int)(recPosEnd - reader.Position));
return(new PdbEditAndContinueLambdaMapCustomDebugInfo(data));
case PdbCustomDebugInfoKind.TupleElementNames:
if (bodyOpt == null)
{
return(null);
}
count = reader.ReadInt32();
if (count < 0)
{
return(null);
}
var tupleListRec = new PdbTupleElementNamesCustomDebugInfo(count);
for (int i = 0; i < count; i++)
{
int nameCount = reader.ReadInt32();
if ((uint)nameCount >= 10000)
{
return(null);
}
var tupleInfo = new PdbTupleElementNames(nameCount);
for (int j = 0; j < nameCount; j++)
{
var s = ReadUTF8Z(recPosEnd);
if (s == null)
{
return(null);
}
tupleInfo.TupleElementNames.Add(s);
}
localIndex = reader.ReadInt32();
uint scopeStart = reader.ReadUInt32();
uint scopeEnd = reader.ReadUInt32();
name = ReadUTF8Z(recPosEnd);
if (name == null)
{
return(null);
}
Debug.Assert(localIndex >= -1);
// -1 = 'const' local. Only 'const' locals have a scope
Debug.Assert((localIndex == -1) ^ (scopeStart == 0 && scopeEnd == 0));
if (localIndex == -1)
{
local = null;
tupleInfo.ScopeStart = GetInstruction(scopeStart);
tupleInfo.ScopeEnd = GetInstruction(scopeEnd);
if (tupleInfo.ScopeStart == null)
{
return(null);
}
}
else
{
if ((uint)localIndex >= (uint)bodyOpt.Variables.Count)
{
return(null);
}
local = bodyOpt.Variables[localIndex];
}
if (local != null && local.Name == name)
{
name = null;
}
tupleInfo.Local = local;
tupleInfo.Name = name;
tupleListRec.Names.Add(tupleInfo);
}
return(tupleListRec);
default:
Debug.Fail("Unknown custom debug info kind: 0x" + ((int)recKind).ToString("X"));
data = reader.ReadBytes((int)(recPosEnd - reader.Position));
return(new PdbUnknownCustomDebugInfo(recKind, data));
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="guid">Custom debug info guid</param>
/// <param name="data">Raw custom debug info data</param>
public PdbUnknownCustomDebugInfo(Guid guid, byte[] data)
{
kind = PdbCustomDebugInfoKind.Unknown;
this.data = data ?? throw new ArgumentNullException(nameof(data));
this.guid = guid;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="kind">Custom debug info kind</param>
/// <param name="data">Raw custom debug info data</param>
public PdbUnknownCustomDebugInfo(PdbCustomDebugInfoKind kind, byte[] data)
{
this.kind = kind;
this.data = data ?? throw new ArgumentNullException(nameof(data));
guid = Guid.Empty;
}