diff options
Diffstat (limited to 'compiler/semexprs.nim')
| -rw-r--r-- | compiler/semexprs.nim | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/compiler/semexprs.nim b/compiler/semexprs.nim index 9cbe11616..daee3dffa 100644 --- a/compiler/semexprs.nim +++ b/compiler/semexprs.nim @@ -2422,8 +2422,8 @@ proc semWhen(c: PContext, n: PNode, semCheck = true): PNode = # ... var whenNimvm = false var typ = commonTypeBegin - if n.len == 2 and n[0].kind == nkElifBranch and - n[1].kind == nkElse: + if n.len in 1..2 and n[0].kind == nkElifBranch and ( + n.len == 1 or n[1].kind == nkElse): let exprNode = n[0][0] if exprNode.kind == nkIdent: whenNimvm = lookUp(c, exprNode).magic == mNimvm @@ -2461,7 +2461,10 @@ proc semWhen(c: PContext, n: PNode, semCheck = true): PNode = else: illFormedAst(n, c.config) if result == nil: result = newNodeI(nkEmpty, n.info) - if whenNimvm: result.typ = typ + if whenNimvm: + result.typ = typ + if n.len == 1: + result.add(newTree(nkElse, newNode(nkStmtList))) proc semSetConstr(c: PContext, n: PNode, expectedType: PType = nil): PNode = result = newNodeI(nkCurly, n.info) |