SymbolScopeImpl ReadScope(uint methodRid, GenericParamContext gpContext)
{
var scopesRidList = pdbMetadata.GetLocalScopeRidList(methodRid);
SymbolScopeImpl rootScopeOrNull = null;
if (scopesRidList.Count != 0)
{
var custInfos = ListCache <PdbCustomDebugInfo> .AllocList();
var stack = ListCache <SymbolScopeImpl> .AllocList();
var importScopeBlobReader = new ImportScopeBlobReader(module, pdbMetadata.BlobStream);
for (int i = 0; i < scopesRidList.Count; i++)
{
var rid = scopesRidList[i];
int token = new MDToken(Table.LocalScope, rid).ToInt32();
bool b = pdbMetadata.TablesStream.TryReadLocalScopeRow(rid, out var row);
Debug.Assert(b);
uint startOffset = row.StartOffset;
uint endOffset = startOffset + row.Length;
SymbolScopeImpl parent = null;
while (stack.Count > 0)
{
var nextParent = stack[stack.Count - 1];
if (startOffset >= nextParent.StartOffset && endOffset <= nextParent.EndOffset)
{
parent = nextParent;
break;
}
stack.RemoveAt(stack.Count - 1);
}
Debug.Assert(parent is not null || rootScopeOrNull is null);
custInfos.Clear();
GetCustomDebugInfos(token, gpContext, custInfos);
var customDebugInfos = custInfos.Count == 0 ? Array2.Empty <PdbCustomDebugInfo>() : custInfos.ToArray();
var scope = new SymbolScopeImpl(this, parent, (int)startOffset, (int)endOffset, customDebugInfos);
if (rootScopeOrNull is null)
{
rootScopeOrNull = scope;
}
stack.Add(scope);
if (parent is not null)
{
parent.childrenList.Add(scope);
}
scope.importScope = ReadPdbImportScope(ref importScopeBlobReader, row.ImportScope, gpContext);
ReadVariables(scope, gpContext, pdbMetadata.GetLocalVariableRidList(rid));
ReadConstants(scope, pdbMetadata.GetLocalConstantRidList(rid));
}
ListCache <SymbolScopeImpl> .Free(ref stack);
ListCache <PdbCustomDebugInfo> .Free(ref custInfos);
}
return(rootScopeOrNull ?? new SymbolScopeImpl(this, null, 0, int.MaxValue, Array2.Empty <PdbCustomDebugInfo>()));
}
void ReadConstants(SymbolScopeImpl scope, RidList rids)
{
if (rids.Count == 0)
{
return;
}
scope.SetConstants(pdbMetadata, rids);
}
public SymbolScopeImpl(PortablePdbReader owner, SymbolScopeImpl parent, int startOffset, int endOffset, PdbCustomDebugInfo[] customDebugInfos)
{
this.owner = owner;
method = null;
this.parent = parent;
this.startOffset = startOffset;
this.endOffset = endOffset;
childrenList = new List <SymbolScope>();
localsList = new List <SymbolVariable>();
this.customDebugInfos = customDebugInfos;
}
void ReadVariables(SymbolScopeImpl scope, GenericParamContext gpContext, RidList rids)
{
if (rids.Count == 0)
{
return;
}
var table = pdbMetadata.TablesStream.LocalVariableTable;
var custInfos = ListCache <PdbCustomDebugInfo> .AllocList();
for (int i = 0; i < rids.Count; i++)
{
var rid = rids[i];
int token = new MDToken(Table.LocalVariable, rid).ToInt32();
custInfos.Clear();
GetCustomDebugInfos(token, gpContext, custInfos);
var customDebugInfos = custInfos.Count == 0 ? Array2.Empty <PdbCustomDebugInfo>() : custInfos.ToArray();
bool b = pdbMetadata.TablesStream.TryReadLocalVariableRow(rid, out var row);
Debug.Assert(b);
var name = pdbMetadata.StringsStream.Read(row.Name);
scope.localsList.Add(new SymbolVariableImpl(name, ToSymbolVariableAttributes(row.Attributes), row.Index, customDebugInfos));
}
ListCache <PdbCustomDebugInfo> .Free(ref custInfos);
}