public void Execute(InstructionCollection code, ObjectContext scope)
{
var stream = new InstructionStream(code);
var instr = stream.GetInstruction();
var context = new ActionContext()
{
Global = GlobalObject,
Scope = scope,
Apt = scope.Item.Context,
Stream = stream
};
while (instr.Type != InstructionType.End)
{
instr.Execute(context);
instr = stream.GetInstruction();
}
}
public void Execute(InstructionCollection code, ObjectContext scope, List <ConstantEntry> consts)
{
var stream = new InstructionStream(code);
var instr = stream.GetInstruction();
var context = new ActionContext(4)
{
Global = GlobalObject,
Scope = scope,
Apt = scope.Item.Context,
Stream = stream,
Constants = consts,
};
InstructionBase prev = null;
while (instr.Type != InstructionType.End)
{
instr.Execute(context);
prev = instr;
instr = stream.GetInstruction();
}
}
public Value Execute(Function func, Value[] args, ObjectContext scope)
{
var code = func.Instructions;
var stream = new InstructionStream(code);
var localScope = new ObjectContext(scope.Item)
{
Constants = func.Constants,
Variables = scope.Variables
};
var context = new ActionContext(func.NumberRegisters)
{
Global = GlobalObject,
Scope = localScope,
Apt = scope.Item.Context,
Stream = stream
};
//parameters in the old version are just stored as local variables
if (!func.IsNewVersion)
{
for (var i = 0; i < func.Parameters.Count; ++i)
{
var name = func.Parameters[i].ToString();
bool provided = i < args.Length;
context.Params[name] = provided ? args[i] : Value.Undefined();
}
}
else
{
for (var i = 0; i < func.Parameters.Count; i += 2)
{
var reg = func.Parameters[i].ToInteger();
var name = func.Parameters[i + 1].ToString();
var argIndex = i / 2;
bool provided = (argIndex) < args.Length;
if (reg != 0)
{
context.Registers[reg] = provided ? args[argIndex] : Value.Undefined();
}
else
{
context.Params[name] = provided ? args[argIndex] : Value.Undefined();
}
}
}
if (func.IsNewVersion)
{
context.Preload(func.Flags);
}
var instr = stream.GetInstruction();
while (instr.Type != InstructionType.End)
{
instr.Execute(context);
if (context.Return)
{
return(context.Stack.Pop());
}
if (stream.IsFinished())
{
break;
}
instr = stream.GetInstruction();
}
return(null);
}