public int Execute()
{
var environment = new ExecEnvironment(functions);
foreach (var def in definitions)
{
def.Execute(environment);
}
Function main = environment.GetFunctionByName("main");
if (main is null)
{
throw new RuntimeException("Cannot find main function");
}
main.Execute(environment, null);
var returnedValue = (environment.GetReturnedValue() as Int_t);
return(returnedValue is null ?
throw new RuntimeException("Wrong return type") :
returnedValue.Value);
}
public Value Evaluate(ExecEnvironment environment)
{
Function fun = environment.GetFunctionByName(name);
var values = new List <Value>();
foreach (var arg in arguments)
{
values.Add(arg.Evaluate(environment));
}
fun.Execute(environment, values);
if (fun.Type == TypeValue.Void)
{
return(null);
}
var value = environment.GetReturnedValue();
if (value.Type != fun.Type)
{
throw new RuntimeException("Wrong return type");
}
return(value);
}