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Elias Naur
74 lines
1.3 KiB
Go
74 lines
1.3 KiB
Go
package ops
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type OpType byte
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// Start at a high number for easier debugging.
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const firstOpIndex = 200
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const (
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TypeBlockDef OpType = iota + firstOpIndex
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TypeBlock
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TypeTransform
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TypeLayer
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TypeRedraw
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TypeImage
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TypeDraw
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TypeColor
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TypePointerHandler
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TypeKeyHandler
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TypeHideInput
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TypePush
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TypePop
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TypeAux
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TypeClip
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)
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const (
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TypeBlockDefLen = 1 + 4 + 4
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TypeBlockLen = 1 + 4 + 4 + 4
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TypeTransformLen = 1 + 4*2
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TypeLayerLen = 1
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TypeRedrawLen = 1 + 8
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TypeImageLen = 1 + 4*4
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TypeDrawLen = 1 + 4*4
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TypeColorLen = 1 + 4
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TypePointerHandlerLen = 1 + 1
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TypeKeyHandlerLen = 1 + 1
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TypeHideInputLen = 1
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TypePushLen = 1
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TypePopLen = 1
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TypeAuxLen = 1 + 4
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TypeClipLen = 1 + 4*4
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)
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func (t OpType) Size() int {
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return [...]int{
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TypeBlockDefLen,
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TypeBlockLen,
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TypeTransformLen,
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TypeLayerLen,
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TypeRedrawLen,
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TypeImageLen,
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TypeDrawLen,
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TypeColorLen,
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TypePointerHandlerLen,
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TypeKeyHandlerLen,
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TypeHideInputLen,
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TypePushLen,
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TypePopLen,
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TypeAuxLen,
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TypeClipLen,
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}[t-firstOpIndex]
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}
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func (t OpType) NumRefs() int {
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switch t {
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case TypeBlock, TypeImage, TypeKeyHandler:
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return 1
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case TypePointerHandler:
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return 2
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default:
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return 0
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}
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}
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