Issie
ArrayInfo Type
Reduced version of Component: id, type and label are all a simulation needs. A custom component's port names and instance parameter bindings ride inside TypeS (CustomComponentType.InputLabels/OutputLabels/ParameterBindings), where port number n is by definition index n of the label list - so port names are never duplicated here. The array settings of an ARRAY COMPONENT; absent on an ordinary sheet. An array component is a sheet whose hardware is `Copies` copies of what is drawn on it, one per value of the loop variable. What joins the copies to each other and to the outside is the array IO components - see ComponentType's BusOut, MuxOut, JoinOut and JoinIn. Copies is a plain integer and deliberately NOT a parameter expression. It fixes how many copies there are, and so fixes the ports of every instance of this sheet: an array component has ONE signature per set of bindings, exactly as any other sheet does. Making it an expression would make a sheet's port LIST depend on who instantiated it, which nothing else in Issie has to cope with. Widths remain parameterisable as they are everywhere else.
Record fields
| Record Field | Description |
Full Usage:
Copies
Field type: int
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The name of the loop variable, which takes the values 0 .. Copies-1, one per copy. NOT a declared property of this sheet: it is declared here, it has a value only inside a copy, and no instance may bind it - so it is absent from DefaultBindings and every part of the parameter system that walks a sheet's declared properties ignores it without being asked to. It IS in scope in the slot expressions of components on this sheet, which is what makes one copy differ from the next; but not in a slot that sets a width, since every copy must have the same ports, and in a join's number it is the only name allowed.
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