diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/semstmts.nim | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/compiler/semstmts.nim b/compiler/semstmts.nim index ab8c23ba4..f2434db87 100644 --- a/compiler/semstmts.nim +++ b/compiler/semstmts.nim @@ -1116,7 +1116,10 @@ proc semCase(c: PContext, n: PNode; flags: TExprFlags; expectedType: PType = nil popCaseContext(c) closeScope(c) return handleCaseStmtMacro(c, n, flags) - + template invalidOrderOfBranches(n: PNode) = + localError(c.config, n.info, "invalid order of case branches") + break + for i in 1..<n.len: setCaseContextIdx(c, i) var x = n[i] @@ -1125,6 +1128,7 @@ proc semCase(c: PContext, n: PNode; flags: TExprFlags; expectedType: PType = nil suggestEnum(c, x, caseTyp) case x.kind of nkOfBranch: + if hasElse: invalidOrderOfBranches(x) checkMinSonsLen(x, 2, c.config) semCaseBranch(c, n, x, i, covered) var last = x.len-1 @@ -1132,6 +1136,7 @@ proc semCase(c: PContext, n: PNode; flags: TExprFlags; expectedType: PType = nil typ = commonType(c, typ, x[last]) expectedType = typ of nkElifBranch: + if hasElse: invalidOrderOfBranches(x) chckCovered = false checkSonsLen(x, 2, c.config) openScope(c) |