internal static void AssertSymbolInTable(string text, int sid, bool duplicate, ISymbolTable symbolTable)
{
if (text == null)
{
Assert.IsNull(symbolTable.FindKnownSymbol(sid));
return;
}
if (sid != SymbolToken.UnknownSid)
{
Assert.AreEqual(text, symbolTable.FindKnownSymbol(sid));
}
if (duplicate)
{
return;
}
Assert.AreEqual(sid, symbolTable.FindSymbol(text));
var token = symbolTable.Find(text);
Assert.AreEqual(sid, token.Sid);
Assert.AreEqual(text, token.Text);
token = symbolTable.Intern(text);
Assert.AreEqual(sid, token.Sid);
Assert.AreEqual(text, token.Text);
}
public Symbol FindSymbol(string name, Symbol context, SymbolFilter filter)
{
Debug.Assert(string.IsNullOrEmpty(name) == false);
Symbol symbol = null;
if (this.IsAnonymousType && (filter & SymbolFilter.Types) == 0)
{
var anonymousProperty = new PropertySymbol(name, this, this);
anonymousProperty.SetNameCasing(preserveCase: true);
return(anonymousProperty);
}
if ((filter & SymbolFilter.Types) != 0)
{
symbol = GetNestedType(name, context, filter)
?? GetGenericParamaterType(name, context, filter);
}
if (symbol == null && (filter & SymbolFilter.Members) != 0)
{
SymbolFilter baseFilter = filter | SymbolFilter.ExcludeParent;
symbol = GetMember(name)
?? FindSymbolFromBase(name, context, symbol, baseFilter);
if (symbol != null && symbol.MatchFilter(filter) == false)
{
symbol = null;
}
}
if (symbol == null && !filter.HasFlag(SymbolFilter.ExcludeParent))
{
if (parentSymbolTable != null)
{
symbol = parentSymbolTable.FindSymbol(name, context, filter);
}
else if (context?.Parent is ISymbolTable symbolTable)
{
symbolTable.FindSymbol(name, context, filter);
}
}
return(symbol);
}
Symbol ISymbolTable.FindSymbol(string name, Symbol context)
{
Symbol symbol = null;
if (_localTable.ContainsKey(name))
{
symbol = _localTable[name];
}
if (symbol == null)
{
Debug.Assert(_parentSymbolTable != null);
symbol = _parentSymbolTable.FindSymbol(name, context);
}
return(symbol);
}
Symbol ISymbolTable.FindSymbol(string name, Symbol context, SymbolFilter filter)
{
Debug.Assert(string.IsNullOrEmpty(name) == false);
Debug.Assert(context != null);
Symbol symbol = null;
if ((filter & SymbolFilter.Members) != 0)
{
SymbolFilter baseFilter = filter | SymbolFilter.ExcludeParent;
symbol = GetMember(name);
if (symbol == null)
{
TypeSymbol baseType = GetBaseType();
TypeSymbol objectType =
(TypeSymbol)((ISymbolTable)SymbolSet.SystemNamespace).FindSymbol("Object", null,
SymbolFilter.Types);
if (baseType == null && this != objectType)
{
baseType = objectType;
}
if (baseType != null)
{
symbol = ((ISymbolTable)baseType).FindSymbol(name, context, baseFilter);
}
}
if (symbol != null && symbol.MatchFilter(filter) == false)
{
symbol = null;
}
}
if (symbol == null && parentSymbolTable != null &&
(filter & SymbolFilter.ExcludeParent) == 0)
{
symbol = parentSymbolTable.FindSymbol(name, context, filter);
}
return(symbol);
}
private void BuildTypeInheritance(ClassSymbol classSymbol)
{
if (classSymbol.PrimaryPartialClass != classSymbol)
{
// Don't build type inheritance for non-primary partial classes.
return;
}
CustomTypeNode customTypeNode = (CustomTypeNode)classSymbol.ParseContext;
if ((customTypeNode.BaseTypes != null) && (customTypeNode.BaseTypes.Count != 0))
{
ClassSymbol baseClass = null;
List <InterfaceSymbol> interfaces = null;
foreach (NameNode node in customTypeNode.BaseTypes)
{
TypeSymbol baseTypeSymbol = (TypeSymbol)_symbolTable.FindSymbol(node.Name, classSymbol, SymbolFilter.Types);
Debug.Assert(baseTypeSymbol != null);
if (baseTypeSymbol.Type == SymbolType.Class)
{
Debug.Assert(baseClass == null);
baseClass = (ClassSymbol)baseTypeSymbol;
}
else
{
Debug.Assert(baseTypeSymbol.Type == SymbolType.Interface);
if (interfaces == null)
{
interfaces = new List <InterfaceSymbol>();
}
interfaces.Add((InterfaceSymbol)baseTypeSymbol);
}
}
if ((baseClass != null) || (interfaces != null))
{
classSymbol.SetInheritance(baseClass, interfaces);
}
}
}
Symbol ISymbolTable.FindSymbol(string name, Symbol context, SymbolFilter filter)
{
Symbol symbol = null;
if ((filter & SymbolFilter.Locals) != 0)
{
if (localTable.ContainsKey(name))
{
symbol = localTable[name];
}
}
if (symbol == null)
{
Debug.Assert(parentSymbolTable != null);
symbol = parentSymbolTable.FindSymbol(name, context, filter);
}
return(symbol);
}
public Symbol FindSymbol(string name, Symbol context, SymbolFilter filter)
{
Debug.Assert(string.IsNullOrEmpty(name) == false);
Symbol symbol = null;
if ((filter & SymbolFilter.Types) != 0)
{
symbol = GetNestedType(name, context, filter);
}
if (symbol == null && (filter & SymbolFilter.Members) != 0)
{
SymbolFilter baseFilter = filter | SymbolFilter.ExcludeParent;
symbol = GetMember(name)
?? FindSymbolFromBase(name, context, symbol, baseFilter);
if (symbol != null && symbol.MatchFilter(filter) == false)
{
symbol = null;
}
}
if (symbol == null && !filter.HasFlag(SymbolFilter.ExcludeParent))
{
if (parentSymbolTable != null)
{
symbol = parentSymbolTable.FindSymbol(name, context, filter);
}
else if (context?.Parent is ISymbolTable symbolTable)
{
symbolTable.FindSymbol(name, context, filter);
}
}
return(symbol);
}
Symbol ISymbolTable.FindSymbol(string name, Symbol context)
{
Debug.Assert(string.IsNullOrEmpty(name) == false);
Debug.Assert(context != null);
Symbol symbol = GetMember(name);
if (symbol == null)
{
var baseType = GetBaseType();
if (baseType != null)
{
symbol = ((ISymbolTable)baseType).FindSymbol(name, context);
}
}
if (symbol == null && _parentSymbolTable != null)
{
symbol = _parentSymbolTable.FindSymbol(name, context);
}
return(symbol);
}
public TypeSymbol ResolveType(TypeSyntax node, ISymbolTable symbolTable, Symbol contextSymbol)
{
if (node is PredefinedTypeSyntax)
{
return(ResolveIntrinsicType((PredefinedTypeSyntax)node, symbolTable, contextSymbol));
}
//else if (node is ArrayTypeNode)
//{
// ArrayTypeNode arrayTypeNode = (ArrayTypeNode)node;
// TypeSymbol itemTypeSymbol = ResolveType(arrayTypeNode.BaseType, symbolTable, contextSymbol);
// Debug.Assert(itemTypeSymbol != null);
// return CreateArrayTypeSymbol(itemTypeSymbol);
//}
else
{
Debug.Assert(node is IdentifierNameSyntax);
var nameNode = (IdentifierNameSyntax)node;
return((TypeSymbol)symbolTable.FindSymbol(nameNode.Name.Text, contextSymbol));
}
}
public TypeSymbol ResolveType(ParseNode node, ISymbolTable symbolTable, Symbol contextSymbol)
{
if (node is IntrinsicTypeNode)
{
IntrinsicType intrinsicType = IntrinsicType.Integer;
IntrinsicTypeNode intrinsicTypeNode = (IntrinsicTypeNode)node;
switch (intrinsicTypeNode.Type)
{
case TokenType.Object:
intrinsicType = IntrinsicType.Object;
break;
case TokenType.Bool:
intrinsicType = IntrinsicType.Boolean;
break;
case TokenType.String:
case TokenType.Char:
intrinsicType = IntrinsicType.String;
break;
case TokenType.Int:
intrinsicType = IntrinsicType.Integer;
break;
case TokenType.UInt:
intrinsicType = IntrinsicType.UnsignedInteger;
break;
case TokenType.Long:
intrinsicType = IntrinsicType.Long;
break;
case TokenType.ULong:
intrinsicType = IntrinsicType.UnsignedLong;
break;
case TokenType.Short:
intrinsicType = IntrinsicType.Short;
break;
case TokenType.UShort:
intrinsicType = IntrinsicType.UnsignedShort;
break;
case TokenType.Byte:
intrinsicType = IntrinsicType.Byte;
break;
case TokenType.SByte:
intrinsicType = IntrinsicType.SignedByte;
break;
case TokenType.Float:
intrinsicType = IntrinsicType.Single;
break;
case TokenType.Decimal:
intrinsicType = IntrinsicType.Decimal;
break;
case TokenType.Double:
intrinsicType = IntrinsicType.Double;
break;
case TokenType.Delegate:
intrinsicType = IntrinsicType.Delegate;
break;
case TokenType.Void:
intrinsicType = IntrinsicType.Void;
break;
}
TypeSymbol typeSymbol = ResolveIntrinsicType(intrinsicType);
if (intrinsicTypeNode.IsNullable)
{
TypeSymbol nullableType = ResolveIntrinsicType(IntrinsicType.Nullable);
typeSymbol = CreateGenericTypeSymbol(nullableType, new List <TypeSymbol> {
typeSymbol
});
}
return(typeSymbol);
}
if (node is ArrayTypeNode)
{
ArrayTypeNode arrayTypeNode = (ArrayTypeNode)node;
TypeSymbol itemTypeSymbol = ResolveType(arrayTypeNode.BaseType, symbolTable, contextSymbol);
Debug.Assert(itemTypeSymbol != null);
return(CreateArrayTypeSymbol(itemTypeSymbol));
}
if (node is AtomicNameNode atomicNameNode)
{
TypeSymbol typeSymbol = ResolveAtomicNameNodeType(atomicNameNode, symbolTable, contextSymbol);
if (typeSymbol != null)
{
return(typeSymbol);
}
}
if (node is GenericNameNode)
{
GenericNameNode genericNameNode = (GenericNameNode)node;
string genericTypeName = genericNameNode.Name + "`" + genericNameNode.TypeArguments.Count;
TypeSymbol templateType =
(TypeSymbol)symbolTable.FindSymbol(genericTypeName, contextSymbol, SymbolFilter.Types);
List <TypeSymbol> typeArguments = new List <TypeSymbol>();
foreach (ParseNode argNode in genericNameNode.TypeArguments)
{
TypeSymbol argType = ResolveType(argNode, symbolTable, contextSymbol);
Debug.Assert(argType != null);
typeArguments.Add(argType);
}
if (templateType != null)
{
TypeSymbol resolvedSymbol = CreateGenericTypeSymbol(templateType, typeArguments);
Debug.Assert(resolvedSymbol != null);
return(resolvedSymbol);
}
}
Debug.Assert(node is NameNode);
NameNode nameNode = (NameNode)node;
return((TypeSymbol)symbolTable.FindSymbol(nameNode.Name, contextSymbol, SymbolFilter.Types));
}
public TypeSymbol ResolveType(TypeSyntax node, ISymbolTable symbolTable, Symbol contextSymbol)
{
if (node is PredefinedTypeSyntax)
{
return ResolveIntrinsicType((PredefinedTypeSyntax) node, symbolTable, contextSymbol);
}
//else if (node is ArrayTypeNode)
//{
// ArrayTypeNode arrayTypeNode = (ArrayTypeNode)node;
// TypeSymbol itemTypeSymbol = ResolveType(arrayTypeNode.BaseType, symbolTable, contextSymbol);
// Debug.Assert(itemTypeSymbol != null);
// return CreateArrayTypeSymbol(itemTypeSymbol);
//}
else
{
Debug.Assert(node is IdentifierNameSyntax);
var nameNode = (IdentifierNameSyntax) node;
return (TypeSymbol)symbolTable.FindSymbol(nameNode.Name.Text, contextSymbol);
}
}
public TypeSymbol ResolveType(ParseNode node, ISymbolTable symbolTable, Symbol contextSymbol)
{
if (node is IntrinsicTypeNode) {
IntrinsicType intrinsicType = IntrinsicType.Integer;
IntrinsicTypeNode intrinsicTypeNode = (IntrinsicTypeNode)node;
switch (intrinsicTypeNode.Type) {
case TokenType.Object:
intrinsicType = IntrinsicType.Object;
break;
case TokenType.Bool:
intrinsicType = IntrinsicType.Boolean;
break;
case TokenType.String:
case TokenType.Char:
intrinsicType = IntrinsicType.String;
break;
case TokenType.Int:
intrinsicType = IntrinsicType.Integer;
break;
case TokenType.UInt:
intrinsicType = IntrinsicType.UnsignedInteger;
break;
case TokenType.Long:
intrinsicType = IntrinsicType.Long;
break;
case TokenType.ULong:
intrinsicType = IntrinsicType.UnsignedLong;
break;
case TokenType.Short:
intrinsicType = IntrinsicType.Short;
break;
case TokenType.UShort:
intrinsicType = IntrinsicType.UnsignedShort;
break;
case TokenType.Byte:
intrinsicType = IntrinsicType.Byte;
break;
case TokenType.SByte:
intrinsicType = IntrinsicType.SignedByte;
break;
case TokenType.Float:
intrinsicType = IntrinsicType.Single;
break;
case TokenType.Decimal:
intrinsicType = IntrinsicType.Decimal;
break;
case TokenType.Double:
intrinsicType = IntrinsicType.Double;
break;
case TokenType.Delegate:
intrinsicType = IntrinsicType.Delegate;
break;
case TokenType.Void:
intrinsicType = IntrinsicType.Void;
break;
}
TypeSymbol typeSymbol = ResolveIntrinsicType(intrinsicType);
if (intrinsicTypeNode.IsNullable) {
TypeSymbol nullableType = ResolveIntrinsicType(IntrinsicType.Nullable);
typeSymbol = CreateGenericTypeSymbol(nullableType, new List<TypeSymbol>() { typeSymbol });
}
return typeSymbol;
}
else if (node is ArrayTypeNode) {
ArrayTypeNode arrayTypeNode = (ArrayTypeNode)node;
TypeSymbol itemTypeSymbol = ResolveType(arrayTypeNode.BaseType, symbolTable, contextSymbol);
Debug.Assert(itemTypeSymbol != null);
return CreateArrayTypeSymbol(itemTypeSymbol);
}
else if (node is GenericNameNode) {
GenericNameNode genericNameNode = (GenericNameNode)node;
string genericTypeName = genericNameNode.Name + "`" + genericNameNode.TypeArguments.Count;
TypeSymbol templateType = (TypeSymbol)symbolTable.FindSymbol(genericTypeName, contextSymbol, SymbolFilter.Types);
List<TypeSymbol> typeArguments = new List<TypeSymbol>();
foreach (ParseNode argNode in genericNameNode.TypeArguments) {
TypeSymbol argType = ResolveType(argNode, symbolTable, contextSymbol);
typeArguments.Add(argType);
}
TypeSymbol resolvedSymbol = CreateGenericTypeSymbol(templateType, typeArguments);
Debug.Assert(resolvedSymbol != null);
return resolvedSymbol;
}
else {
Debug.Assert(node is NameNode);
NameNode nameNode = (NameNode)node;
return (TypeSymbol)symbolTable.FindSymbol(nameNode.Name, contextSymbol, SymbolFilter.Types);
}
}
public static T FindSymbol <T>(this ISymbolTable table, string name, Symbol context, SymbolFilter filter)
where T : Symbol
{
return((T)table.FindSymbol(name, context, filter));
}