public object VisitFunctionStmt(Stmt.Function stmt)
{
var function = new LoxFunction(stmt, _environment, false);
_environment.Define(stmt.Name.Lexeme, function);
return(null);
}
public string VisitFunctionStmt(Stmt.Function stmt)
{
var builder = new StringBuilder();
builder.Append("(fun " + stmt.Name.Lexeme + "(");
foreach (var param in stmt.Parameters)
{
if (param != stmt.Parameters[0])
{
builder.Append(" ");
}
builder.Append(param.Lexeme);
}
builder.Append(") ");
foreach (var body in stmt.Body)
{
builder.Append(body.Accept(this));
}
builder.Append(")");
return(builder.ToString());
}
public object VisitFunctionStmt(Stmt.Function stmt)
{
Declare(stmt.Name);
Define(stmt.Name);
ResolveFunction(stmt, FunctionType.FUNCTION);
return(null);
}
private void ResolveFunction(Stmt.Function function, FunctionType type)
{
var enclosingFunction = _currentFunction;
_currentFunction = type;
BeginScope();
foreach (var param in function.Parameters)
{
Declare(param);
Define(param);
}
Resolve(function.Body);
EndScope();
_currentFunction = enclosingFunction;
}
public LoxFunction(Stmt.Function declaration, EnvironmentScope closure, bool isInitializer)
{
_declaration = declaration;
_closure = closure;
_isInitializer = isInitializer;
}