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borrow checking (#15282)

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* refactoring: move procs to typeallowed.nim
* frontend preparations for first class openArray support
* prepare the code generator for first class openArray
* code generation for first class openArray; WIP
* code generation for open arrays, progress
* added isViewType proc
* preparations for borrow checking
* added borrow checking to the front end
This commit is contained in:
Andreas Rumpf 2020-09-09 07:32:03 +02:00 • committed by GitHub
commit 10988d4840
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18 changed files with 554 additions and 311 deletions
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compiler/trees.nim
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@ -183,7 +183,7 @@ proc getRoot*(n: PNode): PSym =
if n.sym.kind in {skVar, skResult, skTemp, skLet, skForVar, skParam}:
result = n.sym
of nkDotExpr, nkBracketExpr, nkHiddenDeref, nkDerefExpr,
nkObjUpConv, nkObjDownConv, nkCheckedFieldExpr:
nkObjUpConv, nkObjDownConv, nkCheckedFieldExpr, nkHiddenAddr, nkAddr:
result = getRoot(n[0])
of nkHiddenStdConv, nkHiddenSubConv, nkConv:
result = getRoot(n[1])