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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/transf.nim
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@ -494,6 +494,7 @@ proc transformConv(c: PTransf, n: PNode): PNode =
result = transformSons(c, n)
of tyOpenArray, tyVarargs:
result = transform(c, n[1])
#result = transformSons(c, n)
result.typ = takeType(n.typ, n[1].typ)
#echo n.info, " came here and produced ", typeToString(result.typ),
# " from ", typeToString(n.typ), " and ", typeToString(n[1].typ)
@ -1107,6 +1108,9 @@ proc transformBody*(g: ModuleGraph, prc: PSym, cache: bool): PNode =
else:
prc.transformedBody = nil
#if prc.name.s == "main":
# echo "transformed into ", renderTree(result, {renderIds})
proc transformStmt*(g: ModuleGraph; module: PSym, n: PNode): PNode =
if nfTransf in n.flags:
result = n