diff options
Diffstat (limited to 'src/libexpr/parser.y')
| -rw-r--r-- | src/libexpr/parser.y | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y index 967c88d9b..1dcd532ad 100644 --- a/src/libexpr/parser.y +++ b/src/libexpr/parser.y @@ -138,11 +138,10 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath, static void addFormal(const Pos & pos, Formals * formals, const Formal & formal) { - if (formals->argNames.find(formal.name) != formals->argNames.end()) + if (!formals->argNames.insert(formal.name).second) throw ParseError(format("duplicate formal function argument '%1%' at %2%") % formal.name % pos); formals->formals.push_front(formal); - formals->argNames.insert(formal.name); } |