public override void ExitInterface_definition(CSharpParser.Interface_definitionContext context)
{
Console.WriteLine("Exiting interface_definition context.");
symbolTable.ExitScope();
}
public override void EnterInterface_definition(CSharpParser.Interface_definitionContext context)
{
Console.WriteLine("Entering interface_definition context.");
// Getting the current scope node:
Node currentScopeNode = ast.GetNode(symbolTable.CurrentScopeNode);
// Add class symbol to symbol table: parent class, owner class and other informations and add to node data:
// Getting the parent classes:
List <IToken> baseTokens = new List <IToken>(); // Will hold the base class tokens
// Getting the interfaces' names identifiers:
CSharpParser.Interface_baseContext interfaces = context.interface_base();
if (interfaces != null)
{
CSharpParser.Interface_type_listContext typeListCtx = interfaces.interface_type_list();
if (typeListCtx != null)
{
CSharpParser.Namespace_or_type_nameContext[] types = typeListCtx.namespace_or_type_name();
foreach (CSharpParser.Namespace_or_type_nameContext name in types)
{
CSharpParser.IdentifierContext[] ids = name.identifier();
foreach (CSharpParser.IdentifierContext id in ids)
{
baseTokens.Add(id.Start);
}
}
}
}
// Getting the base classes' symbols:
Symbol[] baseSymbols = symbolTable.FindSymbols(baseTokens.ToArray(), ast);
List <ClassSymbol> baseClassSymbols = new List <ClassSymbol>();
foreach (Symbol bs in baseSymbols)
{
baseClassSymbols.Add((ClassSymbol)bs);
}
// Getting the interface's modifiers:
Symbol.ModifierFlag modFlags = TreatModTokens();
modifiersTokens.Clear();
// Creating the interface symbol:
ClassSymbol interfaceSymbol = new ClassSymbol(modFlags, baseClassSymbols.ToArray());
// Adding the class node as a child to the current scope's AST node:
Type type = new Type(context.INTERFACE().Symbol);
Node interfaceNode = new Node(context.INTERFACE().Symbol, Node.Kind.ClassDefinition, type);
int interfaceNodeIndex = ast.NodeIndex(interfaceNode);
currentScopeNode.AddChildIndex(interfaceNodeIndex);
// Adding the class node:
ast.AddNode(interfaceNode);
// Adding an identifier node as a class node child:
CSharpParser.IdentifierContext idCtx = context.identifier();
IToken idToken = idCtx.Start;
// Adding the class body node as a class node child:
CSharpParser.Class_bodyContext bodyCtx = context.class_body();
ClassType interfaceType = new ClassType(idToken, ClassTag.Interface, interfaceSymbol);
symbolTable.AddType(interfaceType);
Node bodyNode = new Node(idToken, Node.Kind.ClassBody, interfaceType);
ast.AddNode(bodyNode);
int bodyNodeIndex = ast.NodeIndex(bodyNode);
interfaceNode.AddChildIndex(bodyNodeIndex);
// Enter scope in the symbol table
symbolTable.EnterScope(bodyNodeIndex);
symbolTable.AddSymbol(idToken, interfaceSymbol);
}
