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fix crash on sigmatch (#11913)

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Timothee Cour 2019-08-08 05:41:23 -07:00 • committed by Andreas Rumpf
commit fda51b6ca2
2 changed files with 4 additions and 3 deletions
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6
compiler/sigmatch.nim
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@ -21,7 +21,7 @@ when (defined(booting) or defined(nimsuggest)) and not defined(leanCompiler):
type
MismatchKind* = enum
kUnknown, kAlreadyGiven, kUnknownNamedParam, kTypeMismatch, kVarNeeded,
kMissingParam, kExtraArg
kMissingParam, kExtraArg, kPositionalAlreadyGiven
MismatchInfo* = object
kind*: MismatchKind # reason for mismatch
@ -2432,8 +2432,8 @@ proc matchesAux(c: PContext, n, nOrig: PNode,
formal = m.callee.n.sons[f].sym
m.firstMismatch.kind = kTypeMismatch
if containsOrIncl(marker, formal.position) and container.isNil:
m.firstMismatch.kind = kAlreadyGiven
# already in namedParams: (see above remark)
m.firstMismatch.kind = kPositionalAlreadyGiven
# positional param already in namedParams: (see above remark)
when false: localError(n.sons[a].info, errCannotBindXTwice, formal.name.s)
noMatch()
return