diff options
Diffstat (limited to 'compiler/semexprs.nim')
| -rw-r--r-- | compiler/semexprs.nim | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/semexprs.nim b/compiler/semexprs.nim index 108e21369..ac82e9fed 100644 --- a/compiler/semexprs.nim +++ b/compiler/semexprs.nim @@ -1433,6 +1433,8 @@ proc newAnonSym(kind: TSymKind, info: TLineInfo, proc semUsing(c: PContext, n: PNode): PNode = result = newNodeI(nkEmpty, n.info) + if not experimentalMode(c): + localError(n.info, "use the {.experimental.} pragma to enable 'using'") for e in n.sons: let usedSym = semExpr(c, e) if usedSym.kind == nkSym: |