/// <summary>
/// Initializes a new instance of the <see cref="PdbSymbol"/> class.
/// </summary>
/// <param name="module">Module that contains this symbol.</param>
/// <param name="typeIndex">Type index of the simple build-in type.</param>
public PdbSymbol(PdbModule module, TypeIndex typeIndex)
: base(module)
{
PdbModule = module;
Id = typeIndex.Index;
Initialize(typeIndex);
}
/// <summary>
/// Gets user type fields.
/// </summary>
protected override IEnumerable <SymbolField> GetFields()
{
TypeIndex fieldListIndex = TypeIndex.None;
if (typeRecord is ClassRecord classRecord)
{
fieldListIndex = classRecord.FieldList;
}
else if (typeRecord is UnionRecord unionRecord)
{
fieldListIndex = unionRecord.FieldList;
}
foreach (TypeRecord field in EnumerateFieldList(fieldListIndex))
{
if (field is DataMemberRecord dataMember)
{
yield return(new PdbSymbolField(this, dataMember));
}
else if (field is StaticDataMemberRecord staticDataMember)
{
yield return(new PdbSymbolField(this, staticDataMember));
}
}
}
/// <summary>
/// Gets PDB symbol for the specified type index.
/// </summary>
/// <param name="index">Type index.</param>
public PdbSymbol GetSymbol(TypeIndex index)
{
if (index.IsSimple)
{
return(builtinSymbolsCache[index]);
}
return(definedSymbolsCache[(int)index.ArrayIndex]);
}
/// <summary>
/// Determines whether the specified <see cref="System.Object" />, is equal to this instance.
/// </summary>
/// <param name="obj">The <see cref="System.Object" /> to compare with this instance.</param>
/// <returns>
/// <c>true</c> if the specified <see cref="System.Object" /> is equal to this instance; otherwise, <c>false</c>.
/// </returns>
public override bool Equals(object obj)
{
if (obj.GetType() != typeof(TypeIndex))
{
return(false);
}
TypeIndex ti = (TypeIndex)obj;
return(Index == ti.Index);
}
/// <summary>
/// Enumerates type records from field list type index.
/// </summary>
/// <param name="fieldListIndex">Type index of the field list type record.</param>
private IEnumerable <TypeRecord> EnumerateFieldList(TypeIndex fieldListIndex)
{
while (fieldListIndex != TypeIndex.None)
{
TypeIndex nextFieldListIndex = TypeIndex.None;
TypeRecord fieldList = PdbModule.PdbFile.TpiStream[fieldListIndex];
if (fieldList is FieldListRecord fieldListRecord)
{
foreach (TypeRecord field in fieldListRecord.Fields)
{
if (field is ListContinuationRecord listContinuation)
{
nextFieldListIndex = listContinuation.ContinuationIndex;
}
else
{
yield return(field);
}
}
}
fieldListIndex = nextFieldListIndex;
}
}
/// <summary>
/// Creates new <see cref="PdbSymbol"/> for the specified type index.
/// </summary>
/// <param name="index">Type index in the TPI stream.</param>
private PdbSymbol CreateSymbol(int index)
{
TypeIndex typeIndex = TypeIndex.FromArrayIndex(index);
return(new PdbSymbol(this, typeIndex.Index, PdbFile.TpiStream[typeIndex]));
}
/// <summary>
/// Creates new <see cref="PdbSymbol"/> for the specified built-in type index.
/// </summary>
/// <param name="index">Built-in type index.</param>
private PdbSymbol CreateBuiltinSymbol(TypeIndex typeIndex)
{
return(new PdbSymbol(this, typeIndex));
}
/// <summary>
/// Gets all types defined in the symbol.
/// </summary>
public override IEnumerable <Symbol> GetAllTypes()
{
TypeLeafKind[] kinds = new TypeLeafKind[]
{
TypeLeafKind.LF_CLASS, TypeLeafKind.LF_STRUCTURE, TypeLeafKind.LF_INTERFACE,
TypeLeafKind.LF_UNION, TypeLeafKind.LF_ENUM
};
List <Symbol> selectedSymbols = new List <Symbol>();
// Find all symbols that will be returned and populate symbolsByUniqueName.
symbolsByUniqueName = new Dictionary <string, PdbSymbol>();
foreach (TypeLeafKind kind in kinds)
{
foreach (TypeIndex typeIndex in PdbFile.TpiStream.GetIndexes(kind))
{
PdbSymbol symbol = allSymbolsCache[(int)typeIndex.ArrayIndex] = CreateSymbol((int)typeIndex.ArrayIndex), oldSymbol;
if (string.IsNullOrEmpty(symbol.UniqueName))
{
selectedSymbols.Add(symbol);
}
else if (!symbolsByUniqueName.TryGetValue(symbol.UniqueName, out oldSymbol))
{
symbolsByUniqueName.Add(symbol.UniqueName, symbol);
}
else if (oldSymbol.IsForwardReference && !symbol.IsForwardReference)
{
symbolsByUniqueName[symbol.UniqueName] = symbol;
}
}
}
selectedSymbols.AddRange(symbolsByUniqueName.Values);
// Now that we have symbolsByUniqueName, we can search for defined symbols.
symbolsByName = new Dictionary <string, PdbSymbol>();
foreach (TypeLeafKind kind in kinds)
{
foreach (TypeIndex typeIndex in PdbFile.TpiStream.GetIndexes(kind))
{
PdbSymbol symbol = definedSymbolsCache[(int)typeIndex.ArrayIndex];
if (!string.IsNullOrEmpty(symbol.Name) && !symbolsByName.ContainsKey(symbol.Name))
{
symbolsByName.Add(symbol.Name, symbol);
}
}
}
// Add all known built-in types into symbolsByName
foreach (TypeIndex typeIndex in TypeIndex.BuiltinTypes)
{
PdbSymbol symbol = builtinSymbolsCache[typeIndex];
if (!string.IsNullOrEmpty(symbol.Name) && !symbolsByName.ContainsKey(symbol.Name))
{
symbolsByName.Add(symbol.Name, symbol);
}
}
// Add pointer to all known built-in types into symbolsByName
foreach (TypeIndex t in TypeIndex.BuiltinTypes)
{
TypeIndex typeIndex = new TypeIndex(t.SimpleKind, SimpleTypeMode.NearPointer);
PdbSymbol symbol = builtinSymbolsCache[typeIndex];
if (!string.IsNullOrEmpty(symbol.Name) && !symbolsByName.ContainsKey(symbol.Name))
{
symbolsByName.Add(symbol.Name, symbol);
}
}
return(selectedSymbols);
}
/// <summary>
/// Initializes data based on the simple built-in type.
/// </summary>
private void Initialize(TypeIndex typeIndex)
{
Name = typeIndex.SimpleTypeName;
Tag = typeIndex.SimpleMode != SimpleTypeMode.Direct ? Engine.CodeTypeTag.Pointer : Engine.CodeTypeTag.BuiltinType;
switch (typeIndex.SimpleKind)
{
case SimpleTypeKind.None:
BasicType = DIA.BasicType.NoType;
Size = 0;
break;
case SimpleTypeKind.Void:
BasicType = DIA.BasicType.Void;
Size = 0;
break;
case SimpleTypeKind.HResult:
BasicType = DIA.BasicType.Hresult;
Size = 4;
break;
case SimpleTypeKind.UnsignedCharacter:
BasicType = DIA.BasicType.UInt;
Size = 1;
break;
case SimpleTypeKind.NarrowCharacter:
case SimpleTypeKind.SignedCharacter:
BasicType = DIA.BasicType.Char;
Size = 1;
break;
case SimpleTypeKind.WideCharacter:
BasicType = DIA.BasicType.WChar;
Size = 2;
break;
case SimpleTypeKind.Character16:
BasicType = DIA.BasicType.Char16;
Size = 2;
break;
case SimpleTypeKind.Character32:
BasicType = DIA.BasicType.Char32;
Size = 4;
break;
case SimpleTypeKind.SByte:
BasicType = DIA.BasicType.Int;
Size = 1;
break;
case SimpleTypeKind.Byte:
BasicType = DIA.BasicType.UInt;
Size = 1;
break;
case SimpleTypeKind.Int16Short:
case SimpleTypeKind.Int16:
BasicType = DIA.BasicType.Int;
Size = 2;
break;
case SimpleTypeKind.UInt16:
case SimpleTypeKind.UInt16Short:
BasicType = DIA.BasicType.UInt;
Size = 2;
break;
case SimpleTypeKind.Int32Long:
case SimpleTypeKind.Int32:
BasicType = DIA.BasicType.Int;
Size = 4;
break;
case SimpleTypeKind.UInt32Long:
case SimpleTypeKind.UInt32:
BasicType = DIA.BasicType.UInt;
Size = 4;
break;
case SimpleTypeKind.Int64Quad:
case SimpleTypeKind.Int64:
BasicType = DIA.BasicType.Long;
Size = 8;
break;
case SimpleTypeKind.UInt64Quad:
case SimpleTypeKind.UInt64:
BasicType = DIA.BasicType.ULong;
Size = 8;
break;
case SimpleTypeKind.Int128Oct:
case SimpleTypeKind.Int128:
BasicType = DIA.BasicType.Long;
Size = 16;
break;
case SimpleTypeKind.UInt128Oct:
case SimpleTypeKind.UInt128:
BasicType = DIA.BasicType.ULong;
Size = 16;
break;
case SimpleTypeKind.Float16:
BasicType = DIA.BasicType.Float;
Size = 2;
break;
case SimpleTypeKind.Float32:
case SimpleTypeKind.Float32PartialPrecision:
BasicType = DIA.BasicType.Float;
Size = 4;
break;
case SimpleTypeKind.Float48:
BasicType = DIA.BasicType.Float;
Size = 6;
break;
case SimpleTypeKind.Float64:
BasicType = DIA.BasicType.Float;
Size = 8;
break;
case SimpleTypeKind.Float80:
BasicType = DIA.BasicType.Float;
Size = 10;
break;
case SimpleTypeKind.Float128:
BasicType = DIA.BasicType.Float;
Size = 12;
break;
case SimpleTypeKind.Complex16:
BasicType = DIA.BasicType.Complex;
Size = 2;
break;
case SimpleTypeKind.Complex32:
case SimpleTypeKind.Complex32PartialPrecision:
BasicType = DIA.BasicType.Complex;
Size = 4;
break;
case SimpleTypeKind.Complex48:
BasicType = DIA.BasicType.Complex;
Size = 6;
break;
case SimpleTypeKind.Complex64:
BasicType = DIA.BasicType.Complex;
Size = 8;
break;
case SimpleTypeKind.Complex80:
BasicType = DIA.BasicType.Complex;
Size = 10;
break;
case SimpleTypeKind.Complex128:
BasicType = DIA.BasicType.Complex;
Size = 16;
break;
case SimpleTypeKind.Boolean8:
BasicType = DIA.BasicType.Bool;
Size = 1;
break;
case SimpleTypeKind.Boolean16:
BasicType = DIA.BasicType.Bool;
Size = 2;
break;
case SimpleTypeKind.Boolean32:
BasicType = DIA.BasicType.Bool;
Size = 4;
break;
case SimpleTypeKind.Boolean64:
BasicType = DIA.BasicType.Bool;
Size = 8;
break;
case SimpleTypeKind.Boolean128:
BasicType = DIA.BasicType.Bool;
Size = 16;
break;
case SimpleTypeKind.NotTranslated:
BasicType = DIA.BasicType.NoType;
Size = 0;
break;
default:
throw new NotImplementedException($"Unexpected simple type: {typeIndex.SimpleKind}, from type index: {typeIndex}");
}
if (typeIndex.SimpleMode != SimpleTypeMode.Direct)
{
ElementType = PdbModule.GetSymbol(new TypeIndex(typeIndex.SimpleKind));
ElementType.PointerType = this;
}
}
