private Stmt ClassDeclaration()
{
Token name = Consume(TokenType.IDENTIFIER, "Expect class name.");
Expr.Variable baseclass = null;
if (Match(TokenType.LESS))
{
Consume(TokenType.IDENTIFIER, "Expect baseclass name.");
baseclass = new Expr.Variable(Previous());
}
Consume(TokenType.LEFT_BRACE, "Expect '{' before class body.");
List <Stmt.Function> methods = new List <Stmt.Function>();
while (!Check(TokenType.RIGHT_BRACE) && !IsAtEnd())
{
methods.Add(Function("method"));
}
Consume(TokenType.RIGHT_BRACE, "Expect '}' after class body.");
return(new Stmt.Class(name, baseclass, methods));
}
public Void VisitVariableExpr(Expr.Variable expr)
{
try
{
if (scopes.Count > 0 && scopes.Last()[expr.name.Lexeme] == false)
{
ElizScriptCompiler.Error(expr.name,
"Cannot read local variable in its own initializer.");
}
}
catch { }
ResolveLocal(expr, expr.name);
return(null);
}
public object VisitVariableExpr(Expr.Variable expr)
{
return(LookUpVariable(expr.name, expr));
//return environment.Get(expr.name);
}
public Class(Token name, Expr.Variable baseclass, List <Function> methods)
{
this.name = name;
this.methods = methods;
this.baseclass = baseclass;
}