/// <summary>
/// Visit item use index (if not null) and array.
/// </summary>
/// <param name="x"></param>
virtual public void VisitItemUse(ItemUse x)
{
VisitElement(x.Index);
VisitElement(x.Array);
//VisitVarLikeConstructUse(x);
}
/// <summary>
/// Emits IL instructions that add an array item access to the current <see cref="PhpRuntimeChain"/>.
/// </summary>
/// <param name="itemUse">AST node representing the item access.</param>
/// <remarks>
/// A reference to <see cref="PhpRuntimeChain"/> is expected and left on the evaluation stack.
/// </remarks>
public void EmitRTChainAddItem(ItemUse itemUse)
{
PhpTypeCode res = itemUse.Array.Emit(codeGenerator);
// create the runtime chain if it has not been done so
if (res != PhpTypeCode.PhpRuntimeChain)
{
codeGenerator.EmitBoxing(res);
EmitCreateRTChain();
}
codeGenerator.IL.Emit(OpCodes.Dup);
if (itemUse.Index != null)
{
// [x]
Create();
codeGenerator.EmitBoxing(itemUse.Index.Emit(codeGenerator));
End();
codeGenerator.IL.EmitCall(OpCodes.Call, Methods.PhpRuntimeChain.AddItem_Object, null);
}
else
{
// []
codeGenerator.IL.EmitCall(OpCodes.Call, Methods.PhpRuntimeChain.AddItem_Void, null);
}
}