Issue #27140: Added BUILD_CONST_KEY_MAP opcode.
diff --git a/Python/ceval.c b/Python/ceval.c
index b6ce67c..1d3bc90 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2647,6 +2647,39 @@
DISPATCH();
}
+ TARGET(BUILD_CONST_KEY_MAP) {
+ int i;
+ PyObject *map;
+ PyObject *keys = TOP();
+ if (!PyTuple_CheckExact(keys) ||
+ PyTuple_GET_SIZE(keys) != (Py_ssize_t)oparg) {
+ PyErr_SetString(PyExc_SystemError,
+ "bad BUILD_CONST_KEY_MAP keys argument");
+ goto error;
+ }
+ map = _PyDict_NewPresized((Py_ssize_t)oparg);
+ if (map == NULL) {
+ goto error;
+ }
+ for (i = oparg; i > 0; i--) {
+ int err;
+ PyObject *key = PyTuple_GET_ITEM(keys, oparg - i);
+ PyObject *value = PEEK(i + 1);
+ err = PyDict_SetItem(map, key, value);
+ if (err != 0) {
+ Py_DECREF(map);
+ goto error;
+ }
+ }
+
+ Py_DECREF(POP());
+ while (oparg--) {
+ Py_DECREF(POP());
+ }
+ PUSH(map);
+ DISPATCH();
+ }
+
TARGET(BUILD_MAP_UNPACK_WITH_CALL)
TARGET(BUILD_MAP_UNPACK) {
int with_call = opcode == BUILD_MAP_UNPACK_WITH_CALL;