public override void Compile(Compiler compiler)
{
// executing
compiler.StartActivity(this);
if (Entry != null)
{
compiler.Emit(OpCode.Invoke, Entry.Ref);
}
compiler.Emit(OpCode.Store, NextState);
compiler.EmitOffset(OpCode.Goto, +4); // to transitions
Int32 endAddress = compiler.Emit(OpCode.Nop);
if (Exit != null)
{
compiler.Emit(OpCode.Invoke, Exit.Ref);
}
else
{
compiler.Emit(OpCode.Nop);
}
compiler.EndActivity(this);
for (int i = 0; i < Transitions.Count; i++)
{
// order is important!
var trans = Transitions[i];
trans.CompileAction(compiler);
}
compiler.Emit(OpCode.Goto, null, endAddress); // break
// compile children
if (Entry != null)
{
Entry.Compile(compiler);
}
if (Exit != null)
{
Exit.Compile(compiler);
}
foreach (var tr in Transitions)
{
tr.Compile(compiler);
}
}