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Disallow nil dereference at compile time (#16032)

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* bring back the semfold of nil

* remove space

* fix test

* proc type can't be dereferenced

* disallow nil dereference at compile time

* changelog
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cooldome 2020-11-18 22:30:28 +00:00 • committed by GitHub
commit acf8316e50
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4 changed files with 12 additions and 2 deletions
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tests/misc/tcast.nim
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@ -33,7 +33,8 @@ reject: discard cast[ptr](a)
# bug #15623
block:
if false:
echo cast[ptr int](nil)[]
let x = cast[ptr int](nil)
echo x[]
block:
if false: