Fix bug that allowed future statements virtually anywhere in a module.
If we exit via the break here, we need to set ff_last_lineno or
FUTURE_POSSIBLE() will remain true. The bug affected statements
containing a variety of expressions, but not all expressions. It has
been present since Python 2.2.
diff --git a/Python/future.c b/Python/future.c
index 20d8dd2..95d6a5c 100644
--- a/Python/future.c
+++ b/Python/future.c
@@ -93,7 +93,6 @@
{
int i, r;
loop:
-
switch (TYPE(n)) {
case single_input:
@@ -222,6 +221,7 @@
n = CHILD(n, 0);
goto loop;
}
+ ff->ff_last_lineno = n->n_lineno;
break;
case atom:
@@ -258,4 +258,3 @@
}
return ff;
}
-