gh-118465: Add __firstlineno__ attribute to class (GH-118475)

It is set by compiler with the line number of the first line of
the class definition.

1 files changed, 5 insertions, 3 deletions

diff --git a/Lib/test/test_metaclass.py b/Lib/test/test_metaclass.py
index 70f9c5d..b37b7de 100644
--- a/Lib/test/test_metaclass.py
+++ b/Lib/test/test_metaclass.py
@@ -164,6 +164,7 @@ Use a __prepare__ method that returns an instrumented dict.
     ...
     d['__module__'] = 'test.test_metaclass'
     d['__qualname__'] = 'C'
+    d['__firstlineno__'] = 1
     d['foo'] = 4
     d['foo'] = 42
     d['bar'] = 123
@@ -183,12 +184,12 @@ Use a metaclass that doesn't derive from type.
     ...     b = 24
     ...
     meta: C ()
-    ns: [('__module__', 'test.test_metaclass'), ('__qualname__', 'C'), ('__static_attributes__', ()), ('a', 42), ('b', 24)]
+    ns: [('__firstlineno__', 1), ('__module__', 'test.test_metaclass'), ('__qualname__', 'C'), ('__static_attributes__', ()), ('a', 42), ('b', 24)]
     kw: []
     >>> type(C) is dict
     True
     >>> print(sorted(C.items()))
-    [('__module__', 'test.test_metaclass'), ('__qualname__', 'C'), ('__static_attributes__', ()), ('a', 42), ('b', 24)]
+    [('__firstlineno__', 1), ('__module__', 'test.test_metaclass'), ('__qualname__', 'C'), ('__static_attributes__', ()), ('a', 42), ('b', 24)]
     >>>
 
 And again, with a __prepare__ attribute.
@@ -206,12 +207,13 @@ And again, with a __prepare__ attribute.
     prepare: C () [('other', 'booh')]
     d['__module__'] = 'test.test_metaclass'
     d['__qualname__'] = 'C'
+    d['__firstlineno__'] = 1
     d['a'] = 1
     d['a'] = 2
     d['b'] = 3
     d['__static_attributes__'] = ()
     meta: C ()
-    ns: [('__module__', 'test.test_metaclass'), ('__qualname__', 'C'), ('__static_attributes__', ()), ('a', 2), ('b', 3)]
+    ns: [('__firstlineno__', 1), ('__module__', 'test.test_metaclass'), ('__qualname__', 'C'), ('__static_attributes__', ()), ('a', 2), ('b', 3)]
     kw: [('other', 'booh')]
     >>>