public override void Render(IParrotWriter writer, IRendererFactory rendererFactory, Statement statement, IDictionary <string, object> documentHost, object model)
{
var localModel = GetLocalModel(documentHost, statement, model);
//Assert that we're looping over something
IEnumerable loop = localModel as IEnumerable;
if (loop == null)
{
throw new InvalidCastException("model is not IEnumerable");
}
//create a local copy
IList <object> items = ToList(loop);
//create locals object to handle local values to the method
Locals locals = new Locals(documentHost);
for (int i = 0; i < items.Count; i++)
{
var item = items[i];
foreach (var child in statement.Children)
{
var renderer = rendererFactory.GetRenderer(child.Name);
locals.Push(IteratorItem(i, items));
renderer.Render(writer, rendererFactory, child, documentHost, item);
locals.Pop();
}
}
}
public override void RenderChildren(IParrotWriter writer, Nodes.Statement statement, IRendererFactory rendererFactory, IDictionary <string, object> documentHost, object model, string defaultTag = null)
{
if (string.IsNullOrEmpty(defaultTag))
{
defaultTag = DefaultChildTag;
}
//get model from parameter
//required - do not remove
if (statement.Parameters != null && statement.Parameters.Count == 1)
{
var localModel = GetLocalModel(documentHost, statement, model);
if (localModel is IEnumerable)
{
//create locals object to handle local values to the method
Locals locals = new Locals(documentHost);
IList <object> items = ToList(model as IEnumerable);
for (int i = 0; i < items.Count; i++)
{
var localItem = items[i];
locals.Push(IteratorItem(i, items));
base.RenderChildren(writer, statement.Children, rendererFactory, documentHost, defaultTag, localItem);
locals.Pop();
}
}
}
else
{
base.RenderChildren(writer, statement.Children, rendererFactory, documentHost, defaultTag, model);
}
}
void EndSimple(ILGenerator il)
{
Debug.Assert(il != null);
Debug.Assert(ArgsCount > 0);
Debug.Assert(ArgsCount < 3);
il_EmitSaveElem(il);
if (ArgsCount == 2)
{
var array = Locals.Pop();
var index2 = Locals.Pop();
var var2 = ArgsLocs[1];
// x += step;
il.Emit(OpCodes.Ldloc, var2);
il_EmitLoadArg(il, 2);
Generic.Operation(il, 1);
il.Emit(OpCodes.Stloc, var2);
EmitLoopEnd(il, index2, array);
}
var index = Locals.Pop();
var var = ArgsLocs[0];
il.Emit(OpCodes.Ldloc, var);
il_EmitLoadArg(il, 1);
Generic.Operation(il, 1);
il.Emit(OpCodes.Stloc, var);
EmitLoopEnd(il, index, null);
}
void EndMulti(ILGenerator il)
{
Debug.Assert(il != null);
Debug.Assert(ArgsCount > 2);
il_EmitSaveElem(il);
for (int i = 0, j = ArgsCount - 1; i < ArgsCount; i++, j--)
{
var index = Locals.Pop();
var array = Locals.Pop();
var var = ArgsLocs[j];
// x += xstep;
il.Emit(OpCodes.Ldloc, var);
il.Emit(OpCodes.Ldloc, StepLocs.Pop());
Generic.Operation(il, 1);
il.Emit(OpCodes.Stloc, var);
EmitLoopEnd(il, index, array);
}
}