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fixes #19291; implements wasMoved hook (#21303)

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* fixes #19291; implements `wasMoved` hook

* basics

* checkpoint

* finish `wasMoved`

* add a test for #19291

* add documentation and changelog

* work `attachedWasMoved` with generics

* fixes optimizer

* register `=wasMoved`

* handle wasMoved magcis

* check another round

* some patches

* try `op == nil`

* nicer

* generate `wasMoved` before `destroy`

* try again

* fixes tests

* default wasMoved

* Update tests/destructor/tv2_cast.nim

* Update tests/destructor/tv2_cast.nim

* Update tests/arc/topt_refcursors.nim
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ringabout 2023-03-02 12:29:40 +08:00 • committed by GitHub
commit a137e50150
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12 changed files with 131 additions and 39 deletions
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3
compiler/ast.nim
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@ -935,6 +935,7 @@ type
TTypeSeq* = seq[PType]
TTypeAttachedOp* = enum ## as usual, order is important here
attachedWasMoved,
attachedDestructor,
attachedAsgn,
attachedSink,
@ -1502,7 +1503,7 @@ proc newProcNode*(kind: TNodeKind, info: TLineInfo, body: PNode,
const
AttachedOpToStr*: array[TTypeAttachedOp, string] = [
"=destroy", "=copy", "=sink", "=trace", "=deepcopy"]
"=wasMoved", "=destroy", "=copy", "=sink", "=trace", "=deepcopy"]
proc `$`*(s: PSym): string =
if s != nil: