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-rw-r--r--Python/ast.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/Python/ast.c b/Python/ast.c
index b2f09b9c84..1f7ddfc197 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -513,7 +513,7 @@ PyAST_Validate(mod_ty mod)
/* Data structure used internally */
struct compiling {
char *c_encoding; /* source encoding */
- PyArena *c_arena; /* arena for allocating memeory */
+ PyArena *c_arena; /* Arena for allocating memory. */
PyObject *c_filename; /* filename */
PyObject *c_normalize; /* Normalization function from unicodedata. */
PyObject *c_normalize_args; /* Normalization argument tuple. */
@@ -1262,16 +1262,20 @@ ast_for_arguments(struct compiling *c, const node *n)
and varargslist (lambda definition).
parameters: '(' [typedargslist] ')'
- typedargslist: ((tfpdef ['=' test] ',')*
- ('*' [tfpdef] (',' tfpdef ['=' test])* [',' '**' tfpdef]
- | '**' tfpdef)
- | tfpdef ['=' test] (',' tfpdef ['=' test])* [','])
+ typedargslist: (tfpdef ['=' test] (',' tfpdef ['=' test])* [',' [
+ '*' [tfpdef] (',' tfpdef ['=' test])* [',' ['**' tfpdef [',']]]
+ | '**' tfpdef [',']]]
+ | '*' [tfpdef] (',' tfpdef ['=' test])* [',' ['**' tfpdef [',']]]
+ | '**' tfpdef [','])
tfpdef: NAME [':' test]
- varargslist: ((vfpdef ['=' test] ',')*
- ('*' [vfpdef] (',' vfpdef ['=' test])* [',' '**' vfpdef]
- | '**' vfpdef)
- | vfpdef ['=' test] (',' vfpdef ['=' test])* [','])
+ varargslist: (vfpdef ['=' test] (',' vfpdef ['=' test])* [',' [
+ '*' [vfpdef] (',' vfpdef ['=' test])* [',' ['**' vfpdef [',']]]
+ | '**' vfpdef [',']]]
+ | '*' [vfpdef] (',' vfpdef ['=' test])* [',' ['**' vfpdef [',']]]
+ | '**' vfpdef [',']
+ )
vfpdef: NAME
+
*/
int i, j, k, nposargs = 0, nkwonlyargs = 0;
int nposdefaults = 0, found_default = 0;
@@ -1373,7 +1377,8 @@ ast_for_arguments(struct compiling *c, const node *n)
i += 2; /* the name and the comma */
break;
case STAR:
- if (i+1 >= NCH(n)) {
+ if (i+1 >= NCH(n) ||
+ (i+2 == NCH(n) && TYPE(CHILD(n, i+1)) == COMMA)) {
ast_error(c, CHILD(n, i),
"named arguments must follow bare *");
return NULL;
@@ -2035,6 +2040,7 @@ ast_for_atom(struct compiling *c, const node *n)
PyOS_snprintf(buf, sizeof(buf), "(%s) %s", errtype, s);
Py_DECREF(errstr);
} else {
+ PyErr_Clear();
PyOS_snprintf(buf, sizeof(buf), "(%s) unknown error", errtype);
}
ast_error(c, n, buf);