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-rw-r--r--Python/compile.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/Python/compile.c b/Python/compile.c
index 01700e0..b1c1982 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -4050,6 +4050,31 @@ maybe_optimize_method_call(struct compiler *c, expr_ty e)
}
static int
+validate_keywords(struct compiler *c, asdl_seq* keywords) {
+ int nkeywords = asdl_seq_LEN(keywords);
+ for (int i = 0; i < nkeywords; i++) {
+ keyword_ty key = ((keyword_ty)asdl_seq_GET(keywords, i));
+ if (key->arg == NULL) {
+ continue;
+ }
+ for (int j = i+1; j < nkeywords; j++) {
+ keyword_ty other = ((keyword_ty)asdl_seq_GET(keywords, j));
+ if (other->arg && !PyUnicode_Compare(key->arg, other->arg)) {
+ PyObject *msg = PyUnicode_FromFormat("keyword argument repeated: %U", key->arg);
+ if (msg == NULL) {
+ return -1;
+ }
+ c->u->u_col_offset = other->col_offset;
+ compiler_error(c, PyUnicode_AsUTF8(msg));
+ Py_DECREF(msg);
+ return -1;
+ }
+ }
+ }
+ return 0;
+}
+
+static int
compiler_call(struct compiler *c, expr_ty e)
{
int ret = maybe_optimize_method_call(c, e);
@@ -4165,6 +4190,10 @@ compiler_call_helper(struct compiler *c,
{
Py_ssize_t i, nseen, nelts, nkwelts;
+ if (validate_keywords(c, keywords) == -1) {
+ return 0;
+ }
+
nelts = asdl_seq_LEN(args);
nkwelts = asdl_seq_LEN(keywords);