[Python-checkins] bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861)

Miss Skeleton (bot) webhook-mailer at python.org
Sat Oct 26 10:06:44 EDT 2019


https://github.com/python/cpython/commit/ba3a566328e8df49741059b24a41480e248bf6d7
commit: ba3a566328e8df49741059b24a41480e248bf6d7
branch: 3.8
author: Miss Skeleton (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2019-10-26T07:06:40-07:00
summary:

bpo-38535: Fix positions for AST nodes for calls without arguments in decorators. (GH-16861)

(cherry picked from commit 26ae9f6d3d755734c9f371b9356325afe5764813)

Co-authored-by: Serhiy Storchaka <storchaka at gmail.com>

files:
A Misc/NEWS.d/next/Core and Builtins/2019-10-20-12-43-48.bpo-38535.ESMkVN.rst
M Lib/test/test_ast.py
M Python/ast.c

diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py
index 30460e72268cb..266075094bcba 100644
--- a/Lib/test/test_ast.py
+++ b/Lib/test/test_ast.py
@@ -129,11 +129,11 @@ def to_tuple(t):
     # Asynchronous comprehensions
     "async def f():\n [i async for b in c]",
     # Decorated FunctionDef
-    "@deco1\n at deco2()\ndef f(): pass",
+    "@deco1\n at deco2()\n at deco3(1)\ndef f(): pass",
     # Decorated AsyncFunctionDef
-    "@deco1\n at deco2()\nasync def f(): pass",
+    "@deco1\n at deco2()\n at deco3(1)\nasync def f(): pass",
     # Decorated ClassDef
-    "@deco1\n at deco2()\nclass C: pass",
+    "@deco1\n at deco2()\n at deco3(1)\nclass C: pass",
     # Decorator with generator argument
     "@deco(a for a in b)\ndef f(): pass",
     # Simple assignment expression
@@ -1808,9 +1808,9 @@ def main():
 ('Module', [('Expr', (1, 0), ('Dict', (1, 0), [None, ('Constant', (1, 10), 2, None)], [('Dict', (1, 3), [('Constant', (1, 4), 1, None)], [('Constant', (1, 6), 2, None)]), ('Constant', (1, 12), 3, None)]))], []),
 ('Module', [('Expr', (1, 0), ('Set', (1, 0), [('Starred', (1, 1), ('Set', (1, 2), [('Constant', (1, 3), 1, None), ('Constant', (1, 6), 2, None)]), ('Load',)), ('Constant', (1, 10), 3, None)]))], []),
 ('Module', [('AsyncFunctionDef', (1, 0), 'f', ('arguments', [], [], None, [], [], None, []), [('Expr', (2, 1), ('ListComp', (2, 1), ('Name', (2, 2), 'i', ('Load',)), [('comprehension', ('Name', (2, 14), 'b', ('Store',)), ('Name', (2, 19), 'c', ('Load',)), [], 1)]))], [], None, None)], []),
-('Module', [('FunctionDef', (3, 0), 'f', ('arguments', [], [], None, [], [], None, []), [('Pass', (3, 9))], [('Name', (1, 1), 'deco1', ('Load',)), ('Call', (2, 0), ('Name', (2, 1), 'deco2', ('Load',)), [], [])], None, None)], []),
-('Module', [('AsyncFunctionDef', (3, 0), 'f', ('arguments', [], [], None, [], [], None, []), [('Pass', (3, 15))], [('Name', (1, 1), 'deco1', ('Load',)), ('Call', (2, 0), ('Name', (2, 1), 'deco2', ('Load',)), [], [])], None, None)], []),
-('Module', [('ClassDef', (3, 0), 'C', [], [], [('Pass', (3, 9))], [('Name', (1, 1), 'deco1', ('Load',)), ('Call', (2, 0), ('Name', (2, 1), 'deco2', ('Load',)), [], [])])], []),
+('Module', [('FunctionDef', (4, 0), 'f', ('arguments', [], [], None, [], [], None, []), [('Pass', (4, 9))], [('Name', (1, 1), 'deco1', ('Load',)), ('Call', (2, 1), ('Name', (2, 1), 'deco2', ('Load',)), [], []), ('Call', (3, 1), ('Name', (3, 1), 'deco3', ('Load',)), [('Constant', (3, 7), 1, None)], [])], None, None)], []),
+('Module', [('AsyncFunctionDef', (4, 0), 'f', ('arguments', [], [], None, [], [], None, []), [('Pass', (4, 15))], [('Name', (1, 1), 'deco1', ('Load',)), ('Call', (2, 1), ('Name', (2, 1), 'deco2', ('Load',)), [], []), ('Call', (3, 1), ('Name', (3, 1), 'deco3', ('Load',)), [('Constant', (3, 7), 1, None)], [])], None, None)], []),
+('Module', [('ClassDef', (4, 0), 'C', [], [], [('Pass', (4, 9))], [('Name', (1, 1), 'deco1', ('Load',)), ('Call', (2, 1), ('Name', (2, 1), 'deco2', ('Load',)), [], []), ('Call', (3, 1), ('Name', (3, 1), 'deco3', ('Load',)), [('Constant', (3, 7), 1, None)], [])])], []),
 ('Module', [('FunctionDef', (2, 0), 'f', ('arguments', [], [], None, [], [], None, []), [('Pass', (2, 9))], [('Call', (1, 1), ('Name', (1, 1), 'deco', ('Load',)), [('GeneratorExp', (1, 5), ('Name', (1, 6), 'a', ('Load',)), [('comprehension', ('Name', (1, 12), 'a', ('Store',)), ('Name', (1, 17), 'b', ('Load',)), [], 0)])], [])], None, None)], []),
 ('Module', [('Expr', (1, 0), ('NamedExpr', (1, 1), ('Name', (1, 1), 'a', ('Store',)), ('Constant', (1, 6), 1, None)))], []),
 ('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [('arg', (1, 6), 'a', None, None)], [], None, [], [], None, []), [('Pass', (1, 14))], [], None, None)], []),
diff --git a/Misc/NEWS.d/next/Core and Builtins/2019-10-20-12-43-48.bpo-38535.ESMkVN.rst b/Misc/NEWS.d/next/Core and Builtins/2019-10-20-12-43-48.bpo-38535.ESMkVN.rst
new file mode 100644
index 0000000000000..7671fd06474ba
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2019-10-20-12-43-48.bpo-38535.ESMkVN.rst	
@@ -0,0 +1,2 @@
+Fixed line numbers and column offsets for AST nodes for calls without
+arguments in decorators.
diff --git a/Python/ast.c b/Python/ast.c
index 79a29a6628ad3..2031b88359363 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -1747,8 +1747,10 @@ ast_for_decorator(struct compiling *c, const node *n)
         name_expr = NULL;
     }
     else if (NCH(n) == 5) { /* Call with no arguments */
-        d = Call(name_expr, NULL, NULL, LINENO(n),
-                 n->n_col_offset, n->n_end_lineno, n->n_end_col_offset, c->c_arena);
+        d = Call(name_expr, NULL, NULL,
+                 name_expr->lineno, name_expr->col_offset,
+                 CHILD(n, 3)->n_end_lineno, CHILD(n, 3)->n_end_col_offset,
+                 c->c_arena);
         if (!d)
             return NULL;
         name_expr = NULL;



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