diff options
Diffstat (limited to 'compiler/semstmts.nim')
| -rw-r--r-- | compiler/semstmts.nim | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/semstmts.nim b/compiler/semstmts.nim index 8d82007fb..f6b193f3d 100644 --- a/compiler/semstmts.nim +++ b/compiler/semstmts.nim @@ -38,6 +38,8 @@ const errPragmaOnlyInHeaderOfProcX = "pragmas are only allowed in the header of a proc; redefinition of $1" errCannotAssignToGlobal = "cannot assign local to global variable" +proc implicitlyDiscardable(n: PNode): bool + proc semDiscard(c: PContext, n: PNode): PNode = result = n checkSonsLen(n, 1, c.config) @@ -101,6 +103,9 @@ proc semWhile(c: PContext, n: PNode; flags: TExprFlags): PNode = result.typ = c.enforceVoidContext elif efInTypeof in flags: result.typ = n[1].typ + elif implicitlyDiscardable(n[1]): + result[1].typ = c.enforceVoidContext + result.typ = c.enforceVoidContext proc semProc(c: PContext, n: PNode): PNode |