bpo-37253: Add _PyCompilerFlags_INIT macro (GH-14018)

Add a new _PyCompilerFlags_INIT macro to initialize PyCompilerFlags
variables, rather than initializing cf_flags and cf_feature_version
explicitly in each variable.

3 files changed, 3 insertions, 5 deletions

diff --git a/Modules/main.c b/Modules/main.c
index 6b9406f..853afed 100644
--- a/Modules/main.c
+++ b/Modules/main.c
@@ -524,7 +524,7 @@ pymain_run_python(int *exitcode)
         }
     }
 
-    PyCompilerFlags cf = {.cf_flags = 0, .cf_feature_version = PY_MINOR_VERSION};
+    PyCompilerFlags cf = _PyCompilerFlags_INIT;
 
     pymain_header(config);
     pymain_import_readline(config);
diff --git a/Modules/parsermodule.c b/Modules/parsermodule.c
index 36f9214..079d00f 100644
--- a/Modules/parsermodule.c
+++ b/Modules/parsermodule.c
@@ -336,8 +336,7 @@ parser_newstobject(node *st, int type)
     if (o != 0) {
         o->st_node = st;
         o->st_type = type;
-        o->st_flags.cf_flags = 0;
-        o->st_flags.cf_feature_version = PY_MINOR_VERSION;
+        o->st_flags = _PyCompilerFlags_INIT;
     }
     else {
         PyNode_Free(st);
diff --git a/Modules/symtablemodule.c b/Modules/symtablemodule.c
index d66cb44..9180f18 100644
--- a/Modules/symtablemodule.c
+++ b/Modules/symtablemodule.c
@@ -30,11 +30,10 @@ _symtable_symtable_impl(PyObject *module, PyObject *source,
     struct symtable *st;
     PyObject *t;
     int start;
-    PyCompilerFlags cf;
+    PyCompilerFlags cf = _PyCompilerFlags_INIT;
     PyObject *source_copy = NULL;
 
     cf.cf_flags = PyCF_SOURCE_IS_UTF8;
-    cf.cf_feature_version = PY_MINOR_VERSION;
 
     const char *str = _Py_SourceAsString(source, "symtable", "string or bytes", &cf, &source_copy);
     if (str == NULL) {