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warn about unused imports; fixes an 'export' regression [nobackport]

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This commit is contained in:
Andreas Rumpf 2019-07-18 18:16:25 +02:00
commit 9852cf804b
3 changed files with 9 additions and 7 deletions
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6
compiler/semexprs.nim
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@ -2450,7 +2450,7 @@ proc semExportExcept(c: PContext, n: PNode): PNode =
var s = initTabIter(i, exported.tab)
while s != nil:
if s.kind in ExportableSymKinds+{skModule} and
s.name.id notin exceptSet:
s.name.id notin exceptSet and sfError notin s.flags:
strTableAdd(c.module.tab, s)
result.add newSymNode(s, n.info)
markUsed(c, n.info, s, c.graph.usageSym)
@ -2480,10 +2480,10 @@ proc semExport(c: PContext, n: PNode): PNode =
if s.kind == skEnumField:
localError(c.config, a.info, errGenerated, "cannot export: " & renderTree(a) &
"; enum field cannot be exported individually")
if s.kind in ExportableSymKinds+{skModule}:
if s.kind in ExportableSymKinds+{skModule} and sfError notin s.flags:
result.add(newSymNode(s, a.info))
strTableAdd(c.module.tab, s)
markUsed(c, n.info, s, c.graph.usageSym)
markUsed(c, n.info, s, c.graph.usageSym)
s = nextOverloadIter(o, c, a)
proc semTupleConstr(c: PContext, n: PNode, flags: TExprFlags): PNode =