public override object Evaluate(NameEnv env)
{
object t = target.Evaluate(env);
object i = index.Evaluate(env);
return(Ops.GetIndex(t, i));
}
public override object Evaluate(NameEnv env)
{
//!!! not right for compare
object l = left.Evaluate(env);
object r = right.Evaluate(env);
return(op.Evaluate(l, r));
}
public override object Evaluate(NameEnv env)
{
object e1 = slStart.Evaluate(env);
object e2 = slStop.Evaluate(env);
object e3 = slStep.Evaluate(env);
return(Ops.MakeSlice(e1, e2, e3));
}
public override object Execute(NameEnv env)
{
object v = rhs.Evaluate(env);
foreach (Expr e in lhs)
{
e.Assign(v, env);
}
return(NextStmt);
}
public override object Evaluate(NameEnv env)
{
object ret = left.Evaluate(env);
if (!Ops.IsTrue(ret))
{
return(right.Evaluate(env));
}
else
{
return(ret);
}
}
public override object Execute(NameEnv env)
{
object ret = NextStmt;
while (Ops.IsTrue(test.Evaluate(env)))
{
ret = body.Execute(env);
if (ret != NextStmt)
{
break;
}
}
return(ret);
// if (else_ != null) {
// else_.exec(env);
// }
}
public override object Execute(NameEnv env)
{
object ret = Stmt.NextStmt;
IEnumerator i = Ops.GetEnumerator(list.Evaluate(env));
while (i.MoveNext())
{
lhs.Assign(i.Current, env);
ret = body.Execute(env);
if (ret != NextStmt)
{
return(ret);
}
}
return(ret);
// if (else_ != null) {
// else_.exec(env);
// }
}
public override object Evaluate(NameEnv env)
{
object callee = target.Evaluate(env);
object[] cargs = new object[args.Length];
int index = 0;
foreach (Arg arg in args)
{
if (arg.name != null)
{
throw new NotImplementedException("keywords");
}
cargs[index++] = arg.expr.Evaluate(env);
}
switch (cargs.Length)
{
case 0: return(Ops.Call(callee));
default: return(Ops.Call(callee, cargs));
}
}
public override object Execute(NameEnv env)
{
expr.Evaluate(env);
//!!! print it if in the right env
return(NextStmt);
}
public override object Execute(NameEnv env)
{
return(expr.Evaluate(env));
}
public override object Evaluate(NameEnv env)
{
return(Ops.Repr(expr.Evaluate(env)));
}
public override object Evaluate(NameEnv env)
{
object t = target.Evaluate(env);
return(Ops.GetAttr(env.globals, t, SymbolTable.StringToId(name.GetString())));
}
public object MakeFunction(NameEnv env)
{
string[] names = Name.ToStrings(makeNames(parameters));
object[] defaults = Expr.Evaluate(this.defaults, env);
return(new InterpFunction(name.GetString(), names, defaults, body, env.globals));
}
