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https://github.com/nim-lang/Nim.git
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a137e50150
* 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
55 lines
905 B
Nim
55 lines
905 B
Nim
discard """
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output: ''''''
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cmd: '''nim c --gc:arc --expandArc:traverse --hint:Performance:off $file'''
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nimout: '''
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--expandArc: traverse
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var
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it_cursor
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jt
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try:
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it_cursor = root
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block :tmp:
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while (
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not (it_cursor == nil)):
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echo [it_cursor.s]
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it_cursor = it_cursor.ri
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`=copy`(jt, root)
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block :tmp_1:
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while (
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not (jt == nil)):
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var ri_1
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try:
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`=copy`(ri_1, jt.ri)
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echo [jt.s]
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`=sink`(jt, ri_1)
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`=wasMoved`(ri_1)
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finally:
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`=destroy`(ri_1)
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finally:
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`=destroy`(jt)
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-- end of expandArc ------------------------
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'''
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"""
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type
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Node = ref object
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le, ri: Node
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s: string
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proc traverse(root: Node) =
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var it = root
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while it != nil:
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echo it.s
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it = it.ri
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var jt = root
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while jt != nil:
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let ri = jt.ri
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echo jt.s
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jt = ri
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traverse(nil)
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# XXX: This optimization is not sound
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