// Execute a string. The string is cached, and subsequent calls of Exec() with the same code string
// execute code that is already compiled and cached. Code that is executed from a known location, i.e., a script,
// is recommended to have its own local code unit, so it does not have to be looked up in a table.
public static void Exec(this RuntimeInstance i, string s)
{
using (new InstanceScope(i))
{
CodeUnit.Get(s).Run();
}
}
public static Value Eval(RuntimeInstance inst, string s)
{
using (new InstanceScope(inst))
{
return(CodeUnit.GetExpression(s).Eval());
}
}
public static void Init(this Room room)
{
if (room.CreationCode != null)
{
using (new InstanceScope(LibraryContext.Current.InstanceFactory.CreatePrivateInstance() as RuntimeInstance))
{
CodeUnit.Get(room).Run();
}
}
}
static CodeUnit Get(object obj, bool isExpression)
{
if (!(obj is string || obj is IGml))
{
throw new InvalidOperationException();
}
CodeUnit unit;
if (!CodeUnits.TryGetValue(obj, out unit))
{
unit = new CodeUnit(obj, isExpression);
CodeUnits.Add(obj, unit);
}
return(unit);
}
public static Value EvalCode(this IGml codeObject)
{
return(CodeUnit.GetExpression(codeObject).Eval());
}
public static void ExecuteCode(this IGml codeObject)
{
CodeUnit.Get(codeObject).Run();
}
public ScriptFunction(string name, string code) : base(name, -1)
{
Code = code;
Unit = CodeUnit.Get(this);
}
static CodeUnit Get(object obj, bool isExpression)
{
if (!(obj is string || obj is IGml))
throw new InvalidOperationException();
CodeUnit unit;
if (!CodeUnits.TryGetValue(obj, out unit))
{
unit = new CodeUnit(obj, isExpression);
CodeUnits.Add(obj, unit);
}
return unit;
}
public static void Run(this CodeUnit unit)
{
(unit.ParseTree as Statement).Execute();
}
public static Value Eval(this CodeUnit unit)
{
return((unit.ParseTree as Expression).Eval());
}
public ScriptFunction(string name, string code) : base(name, -1)
{
Code = code;
Unit = CodeUnit.Get(this);
}