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strict effects (#18777)

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* fixes #17369
* megatest is green for --cpu:arm64
* docgen output includes more tags/raises
* implemented 'effectsOf' 
* algorithm.nim: uses new effectsOf annotation
* closes #18376
* closes #17475
* closes #13905
* allow effectsOf: [a, b]
* added a test case
* parameters that are not ours cannot be declared as .effectsOf
* documentation
* manual: added the 'sort' example
* bootstrap with the new better options
This commit is contained in:
Andreas Rumpf 2021-09-02 12:10:14 +02:00 • committed by GitHub
commit e0ef859130
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35 changed files with 482 additions and 203 deletions
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compiler/ccgcalls.nim
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@ -325,7 +325,7 @@ proc skipTrivialIndirections(n: PNode): PNode =
proc getPotentialWrites(n: PNode; mutate: bool; result: var seq[PNode]) =
case n.kind:
of nkLiterals, nkIdent: discard
of nkLiterals, nkIdent, nkFormalParams: discard
of nkSym:
if mutate: result.add n
of nkAsgn, nkFastAsgn:
@ -354,7 +354,7 @@ proc getPotentialWrites(n: PNode; mutate: bool; result: var seq[PNode]) =
proc getPotentialReads(n: PNode; result: var seq[PNode]) =
case n.kind:
of nkLiterals, nkIdent: discard
of nkLiterals, nkIdent, nkFormalParams: discard
of nkSym: result.add n
else:
for s in n: