// TODO: structs added as requirement
// TypeDeclaring (n/a only for array and struct types)
private void VisitNode(ClassDeclaration node)
{
AbstractNode modifiers = node.Child;
AbstractNode identifier = modifiers.Sib;
AbstractNode classBody = identifier.Sib;
ClassTypeDescriptor classDesc = new ClassTypeDescriptor();
classDesc.ClassBody = new ScopeTable();
Modifiers mods = modifiers as Modifiers;
if (mods != null)
{
classDesc.Modifiers = mods.ModifierTokens;
}
else
{
node.TypeDescriptor = new ErrorDescriptor("Expected " +
"modifier node, found: " + nameof(node));
}
Attr attr = new Attr();
attr.Kind = Kind.ClassType;
attr.TypeDescriptor = classDesc;
string id = ((Identifier)identifier).ID;
Table.enter(id, attr);
CurrentClass = classDesc;
node.TypeDescriptor = classDesc;
node.AttributesRef = attr;
// push the class body scope table onto the symbol table stack
Table.openScope
(((ClassTypeDescriptor)attr.TypeDescriptor).ClassBody);
AbstractNode fieldDecls = classBody.Child;
// grammar allows one class: if body empty, parsing complete
if (fieldDecls == null)
{
return;
}
fieldDecls.Accept(this);
Table.closeScope();
CurrentClass = null;
}
