Sync contrib/tools/python3 layout with upstream

* Move src/ subdir contents to the top of the layout
* Rename self-written lib -> lib2 to avoid CaseFolding warning from the VCS
* Regenerate contrib/libs/python proxy-headers accordingly
4ccc62ac1511abcf0fed14ccade38e984e088f1e

1 files changed, 127 insertions, 0 deletions

diff --git a/contrib/tools/python3/Modules/symtablemodule.c b/contrib/tools/python3/Modules/symtablemodule.c
new file mode 100644
index 00000000000..1f09c23bb85
--- /dev/null
+++ b/contrib/tools/python3/Modules/symtablemodule.c
@@ -0,0 +1,127 @@
+#include "Python.h"
+#include "pycore_symtable.h"      // struct symtable
+
+#include "clinic/symtablemodule.c.h"
+/*[clinic input]
+module _symtable
+[clinic start generated code]*/
+/*[clinic end generated code: output=da39a3ee5e6b4b0d input=f4685845a7100605]*/
+
+
+/*[clinic input]
+_symtable.symtable
+
+    source:    object
+    filename:  object(converter='PyUnicode_FSDecoder')
+    startstr:  str
+    /
+
+Return symbol and scope dictionaries used internally by compiler.
+[clinic start generated code]*/
+
+static PyObject *
+_symtable_symtable_impl(PyObject *module, PyObject *source,
+                        PyObject *filename, const char *startstr)
+/*[clinic end generated code: output=59eb0d5fc7285ac4 input=9dd8a50c0c36a4d7]*/
+{
+    struct symtable *st;
+    PyObject *t;
+    int start;
+    PyCompilerFlags cf = _PyCompilerFlags_INIT;
+    PyObject *source_copy = NULL;
+
+    cf.cf_flags = PyCF_SOURCE_IS_UTF8;
+
+    const char *str = _Py_SourceAsString(source, "symtable", "string or bytes", &cf, &source_copy);
+    if (str == NULL) {
+        return NULL;
+    }
+
+    if (strcmp(startstr, "exec") == 0)
+        start = Py_file_input;
+    else if (strcmp(startstr, "eval") == 0)
+        start = Py_eval_input;
+    else if (strcmp(startstr, "single") == 0)
+        start = Py_single_input;
+    else {
+        PyErr_SetString(PyExc_ValueError,
+           "symtable() arg 3 must be 'exec' or 'eval' or 'single'");
+        Py_DECREF(filename);
+        Py_XDECREF(source_copy);
+        return NULL;
+    }
+    st = _Py_SymtableStringObjectFlags(str, filename, start, &cf);
+    Py_DECREF(filename);
+    Py_XDECREF(source_copy);
+    if (st == NULL) {
+        return NULL;
+    }
+    t = Py_NewRef(st->st_top);
+    _PySymtable_Free(st);
+    return t;
+}
+
+static PyMethodDef symtable_methods[] = {
+    _SYMTABLE_SYMTABLE_METHODDEF
+    {NULL,              NULL}           /* sentinel */
+};
+
+static int
+symtable_init_constants(PyObject *m)
+{
+    if (PyModule_AddIntMacro(m, USE) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_GLOBAL) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_NONLOCAL) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_LOCAL) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_PARAM) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_FREE) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_FREE_CLASS) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_IMPORT) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_BOUND) < 0) return -1;
+    if (PyModule_AddIntMacro(m, DEF_ANNOT) < 0) return -1;
+
+    if (PyModule_AddIntConstant(m, "TYPE_FUNCTION", FunctionBlock) < 0)
+        return -1;
+    if (PyModule_AddIntConstant(m, "TYPE_CLASS", ClassBlock) < 0) return -1;
+    if (PyModule_AddIntConstant(m, "TYPE_MODULE", ModuleBlock) < 0)
+        return -1;
+    if (PyModule_AddIntConstant(m, "TYPE_ANNOTATION", AnnotationBlock) < 0)
+        return -1;
+    if (PyModule_AddIntConstant(m, "TYPE_TYPE_VAR_BOUND", TypeVarBoundBlock) < 0)
+        return -1;
+    if (PyModule_AddIntConstant(m, "TYPE_TYPE_ALIAS", TypeAliasBlock) < 0)
+        return -1;
+    if (PyModule_AddIntConstant(m, "TYPE_TYPE_PARAM", TypeParamBlock) < 0)
+        return -1;
+
+    if (PyModule_AddIntMacro(m, LOCAL) < 0) return -1;
+    if (PyModule_AddIntMacro(m, GLOBAL_EXPLICIT) < 0) return -1;
+    if (PyModule_AddIntMacro(m, GLOBAL_IMPLICIT) < 0) return -1;
+    if (PyModule_AddIntMacro(m, FREE) < 0) return -1;
+    if (PyModule_AddIntMacro(m, CELL) < 0) return -1;
+
+    if (PyModule_AddIntConstant(m, "SCOPE_OFF", SCOPE_OFFSET) < 0) return -1;
+    if (PyModule_AddIntMacro(m, SCOPE_MASK) < 0) return -1;
+
+    return 0;
+}
+
+static PyModuleDef_Slot symtable_slots[] = {
+    {Py_mod_exec, symtable_init_constants},
+    {Py_mod_multiple_interpreters, Py_MOD_PER_INTERPRETER_GIL_SUPPORTED},
+    {0, NULL}
+};
+
+static struct PyModuleDef symtablemodule = {
+    PyModuleDef_HEAD_INIT,
+    .m_name = "_symtable",
+    .m_size = 0,
+    .m_methods = symtable_methods,
+    .m_slots = symtable_slots,
+};
+
+PyMODINIT_FUNC
+PyInit__symtable(void)
+{
+    return PyModuleDef_Init(&symtablemodule);
+}