bpo-36127: Argument Clinic: inline parsing code for keyword parameters. (GH-12058)

1 files changed, 34 insertions, 4 deletions

diff --git a/Modules/clinic/_bz2module.c.h b/Modules/clinic/_bz2module.c.h
index fb64333..cc16d8b 100644
--- a/Modules/clinic/_bz2module.c.h
+++ b/Modules/clinic/_bz2module.c.h
@@ -142,14 +142,44 @@ _bz2_BZ2Decompressor_decompress(BZ2Decompressor *self, PyObject *const *args, Py
 {
     PyObject *return_value = NULL;
     static const char * const _keywords[] = {"data", "max_length", NULL};
-    static _PyArg_Parser _parser = {"y*|n:decompress", _keywords, 0};
+    static _PyArg_Parser _parser = {NULL, _keywords, "decompress", 0};
+    PyObject *argsbuf[2];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
     Py_buffer data = {NULL, NULL};
     Py_ssize_t max_length = -1;
 
-    if (!_PyArg_ParseStackAndKeywords(args, nargs, kwnames, &_parser,
-        &data, &max_length)) {
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 2, 0, argsbuf);
+    if (!args) {
         goto exit;
     }
+    if (PyObject_GetBuffer(args[0], &data, PyBUF_SIMPLE) != 0) {
+        goto exit;
+    }
+    if (!PyBuffer_IsContiguous(&data, 'C')) {
+        _PyArg_BadArgument("decompress", 1, "contiguous buffer", args[0]);
+        goto exit;
+    }
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    if (PyFloat_Check(args[1])) {
+        PyErr_SetString(PyExc_TypeError,
+                        "integer argument expected, got float" );
+        goto exit;
+    }
+    {
+        Py_ssize_t ival = -1;
+        PyObject *iobj = PyNumber_Index(args[1]);
+        if (iobj != NULL) {
+            ival = PyLong_AsSsize_t(iobj);
+            Py_DECREF(iobj);
+        }
+        if (ival == -1 && PyErr_Occurred()) {
+            goto exit;
+        }
+        max_length = ival;
+    }
+skip_optional_pos:
     return_value = _bz2_BZ2Decompressor_decompress_impl(self, &data, max_length);
 
 exit:
@@ -190,4 +220,4 @@ _bz2_BZ2Decompressor___init__(PyObject *self, PyObject *args, PyObject *kwargs)
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=892c6133e97ff840 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=8e123f4eec497655 input=a9049054013a1b77]*/