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[feature] detect unused imports

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This commit is contained in:
Araq 2019-07-17 22:36:23 +02:00
commit 4137a4dbf3
12 changed files with 62 additions and 33 deletions
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6
compiler/sigmatch.nim
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@ -99,7 +99,7 @@ type
const
isNilConversion = isConvertible # maybe 'isIntConv' fits better?
proc markUsed*(conf: ConfigRef; info: TLineInfo, s: PSym; usageSym: var PSym)
proc markUsed*(c: PContext; info: TLineInfo, s: PSym; usageSym: var PSym)
template hasFauxMatch*(c: TCandidate): bool = c.fauxMatch != tyNone
@ -1882,7 +1882,7 @@ proc userConvMatch(c: PContext, m: var TCandidate, f, a: PType,
dest = generateTypeInstance(c, m.bindings, arg, dest)
let fdest = typeRel(m, f, dest)
if fdest in {isEqual, isGeneric} and not (dest.kind == tyLent and f.kind == tyVar):
markUsed(c.config, arg.info, c.converters[i], c.graph.usageSym)
markUsed(c, arg.info, c.converters[i], c.graph.usageSym)
var s = newSymNode(c.converters[i])
s.typ = c.converters[i].typ
s.info = arg.info
@ -2211,7 +2211,7 @@ proc paramTypesMatch*(m: var TCandidate, f, a: PType,
else: result = nil
else:
# only one valid interpretation found:
markUsed(m.c.config, arg.info, arg.sons[best].sym, m.c.graph.usageSym)
markUsed(m.c, arg.info, arg.sons[best].sym, m.c.graph.usageSym)
onUse(arg.info, arg.sons[best].sym)
result = paramTypesMatchAux(m, f, arg.sons[best].typ, arg.sons[best],
argOrig)