public IIR Execute(IIR predecessorIR)
{
AstIR astIR = predecessorIR as AstIR;
if (astIR == null)
{
return(null);
}
// Initialize Lowering Engine
InitializeLoweringEngine();
PhysicalIR physicalIR = new PhysicalIR(astIR);
foreach (Task.AstPackageNode packageNode in astIR.AstRootNode.Packages)
{
if (packageNode.Emit)
{
var root = physicalIR.InitializePackage(packageNode.Name);
PhysicalLoweringProcessor.Lower(packageNode, new TaskLoweringContext(root));
}
}
return(physicalIR);
}
private static void InitializeLoweringEngine()
{
if (!_initialized)
{
_initialized = true;
Assembly currentAssembly = Assembly.GetExecutingAssembly();
foreach (Type t in currentAssembly.GetExportedTypes())
{
foreach (MethodInfo mi in t.GetMethods())
{
object[] loweringAttributes = mi.GetCustomAttributes(typeof(LoweringAttribute), true);
foreach (LoweringAttribute la in loweringAttributes)
{
var handler = (AstLoweringHandler)Delegate.CreateDelegate(typeof(AstLoweringHandler), mi, true);
PhysicalLoweringProcessor.Register(la.AstNodeType, handler);
}
}
}
}
}
