protected void ExecuteClassDeclStmt(AstClassDeclStmt stmt)
{
if (HadErrorOrReturn())
{
return;
}
// Define even though we aren't finished initializing it so that methods can
// reference the class.
bool success = m_environment.Define(stmt.m_identifier.m_identifier, null);
if (!success)
{
m_runtimeError = true;
Lox.Error(stmt.m_startLine, "Redifinition of identifier " + stmt.m_identifier);
return;
}
var methods = new Dictionary <string, Function>();
foreach (AstFunDeclStmt funDecl in stmt.m_funDecls)
{
methods.Add(funDecl.m_identifier.m_identifier, new Function(funDecl, m_environment));
}
if (HadErrorOrReturn())
{
return;
}
success = m_environment.Assign(stmt.m_identifier, new Class(stmt.m_identifier.m_identifier, methods));
}
protected void ResolveClassDeclStmt(AstClassDeclStmt stmt)
{
var scope = Scope();
if (scope != null) // TODO: Better global handling
{
if (scope.ContainsKey(stmt.m_identifier.m_identifier))
{
m_error = true;
Lox.Error(stmt.m_startLine, "Redefinition of identifier \"" + stmt.m_identifier.m_identifier + "\"");
return;
}
scope[stmt.m_identifier.m_identifier] = true;
}
scope = PushScope();
scope["this"] = true;
foreach (AstFunDeclStmt funDecl in stmt.m_funDecls)
{
ResolveFunDeclStmt(funDecl);
}
PopScope();
}