Fix SF bug #1519018: 'as' is now validated properly in import statements
diff --git a/Python/ast.c b/Python/ast.c
index f3e611b..4c78b00 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -2142,7 +2142,14 @@
loop:
switch (TYPE(n)) {
case import_as_name:
- str = (NCH(n) == 3) ? NEW_IDENTIFIER(CHILD(n, 2)) : NULL;
+ str = NULL;
+ if (NCH(n) == 3) {
+ if (strcmp(STR(CHILD(n, 1)), "as") != 0) {
+ ast_error(n, "must use 'as' in import");
+ return NULL;
+ }
+ str = NEW_IDENTIFIER(CHILD(n, 2));
+ }
return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena);
case dotted_as_name:
if (NCH(n) == 1) {
@@ -2151,6 +2158,10 @@
}
else {
alias_ty a = alias_for_import_name(c, CHILD(n, 0));
+ if (strcmp(STR(CHILD(n, 1)), "as") != 0) {
+ ast_error(n, "must use 'as' in import");
+ return NULL;
+ }
assert(!a->asname);
a->asname = NEW_IDENTIFIER(CHILD(n, 2));
return a;