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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/semstmts.nim
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@ -534,7 +534,7 @@ proc semVarOrLet(c: PContext, n: PNode, symkind: TSymKind): PNode =
if c.matchedConcept != nil:
typFlags.incl taConcept
typeAllowedCheck(c.config, a.info, typ, symkind, typFlags)
typeAllowedCheck(c, a.info, typ, symkind, typFlags)
when false: liftTypeBoundOps(c, typ, a.info)
instAllTypeBoundOp(c, a.info)
@ -667,7 +667,7 @@ proc semConst(c: PContext, n: PNode): PNode =
if def.kind != nkNilLit:
if c.matchedConcept != nil:
typFlags.incl taConcept
typeAllowedCheck(c.config, a.info, typ, skConst, typFlags)
typeAllowedCheck(c, a.info, typ, skConst, typFlags)
var b: PNode
if a.kind == nkVarTuple: