public static object Iter(object func, object sentinel)
{
if (PythonOperator.IsCallable(func) == Ops.FALSE)
{
throw Ops.TypeError("iter(v, w): v must be callable");
}
return(new SentinelIterator(func, sentinel));
}
public static object Eval(ICallerContext context, string expression, IDictionary <object, object> globals, object locals)
{
if (locals != null && PythonOperator.IsMappingType(context, locals) == Ops.FALSE)
{
throw Ops.TypeError("locals must be mapping");
}
CompilerContext cc = context.CreateCompilerContext();
Parser p = Parser.FromString(context.SystemState, cc, expression.TrimStart(' ', '\t'));
Expr e = p.ParseTestListAsExpression();
PythonModule mod = new PythonModule("<eval>", globals, context.SystemState, null, context.ContextFlags);
if (Options.FastEval) //!!! experimenting with a HUGE (>100x) performance boost to simple evals
{
return(e.Evaluate(new NameEnv(mod, locals)));
}
else
{
Stmt s = new ReturnStmt(e);
FrameCode fc = OutputGenerator.GenerateSnippet(cc, s, false);
return(fc.Run(new Frame(mod, globals, locals)));
}
}