Use code object instead of (co_firstlineno, co_name, co_filename) for…

… caching frame info. Fixes #837 Fixes #844

src/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_cython.pyx

@@ -677,7 +677,7 @@ cdef class PyDBFrame:
         cdef str curr_func_name;
         cdef bint exist_result;
         cdef dict frame_skips_cache;
-        cdef tuple frame_cache_key;
+        cdef object frame_cache_key;
         cdef tuple line_cache_key;
         cdef int breakpoints_in_line_cache;
         cdef int breakpoints_in_frame_cache;
@@ -1640,7 +1640,7 @@ cdef class ThreadTracer:
         cdef str filename;
         cdef str base;
         cdef int pydev_step_cmd;
-        cdef tuple frame_cache_key;
+        cdef object frame_cache_key;
         cdef dict cache_skips;
         cdef bint is_stepping;
         cdef tuple abs_path_canonical_path_and_base;
@@ -1667,7 +1667,7 @@ cdef class ThreadTracer:
 
             # Note: it's important that the context name is also given because we may hit something once
             # in the global context and another in the local context.
-            frame_cache_key = (frame.f_code.co_firstlineno, frame.f_code.co_name, frame.f_code.co_filename)
+            frame_cache_key = frame.f_code
             if frame_cache_key in cache_skips:
                 if not is_stepping:
                     # if DEBUG: print('skipped: trace_dispatch (cache hit)', frame_cache_key, frame.f_lineno, event, frame.f_code.co_name)
@@ -1681,7 +1681,7 @@ cdef class ThreadTracer:
 
                         back_frame = frame.f_back
                         if back_frame is not None and pydev_step_cmd in (107, 144, 109, 160):
-                            back_frame_cache_key = (back_frame.f_code.co_firstlineno, back_frame.f_code.co_name, back_frame.f_code.co_filename)
+                            back_frame_cache_key = back_frame.f_code
                             if cache_skips.get(back_frame_cache_key) == 1:
                                 # if DEBUG: print('skipped: trace_dispatch (cache hit: 1)', frame_cache_key, frame.f_lineno, event, frame.f_code.co_name)
                                 return None if event == 'call' else NO_FTRACE
@@ -1721,7 +1721,7 @@ cdef class ThreadTracer:
                     back_frame = frame.f_back
                     if back_frame is not None and pydev_step_cmd in (107, 144, 109, 160):
                         if py_db.apply_files_filter(back_frame, back_frame.f_code.co_filename, False):
-                            back_frame_cache_key = (back_frame.f_code.co_firstlineno, back_frame.f_code.co_name, back_frame.f_code.co_filename)
+                            back_frame_cache_key = back_frame.f_code
                             cache_skips[back_frame_cache_key] = 1
                             # if DEBUG: print('skipped: trace_dispatch (filtered out: 1)', frame_cache_key, frame.f_lineno, event, frame.f_code.co_name)
                             return None if event == 'call' else NO_FTRACE

src/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_frame.py

@@ -544,7 +544,7 @@ def _get_unfiltered_back_frame(self, main_debugger, frame):
     #     cdef str curr_func_name;
     #     cdef bint exist_result;
     #     cdef dict frame_skips_cache;
-    #     cdef tuple frame_cache_key;
+    #     cdef object frame_cache_key;
     #     cdef tuple line_cache_key;
     #     cdef int breakpoints_in_line_cache;
     #     cdef int breakpoints_in_frame_cache;

src/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_trace_dispatch_regular.py

@@ -340,7 +340,7 @@ def __call__(self, frame, event, arg):
         # cdef str filename;
         # cdef str base;
         # cdef int pydev_step_cmd;
-        # cdef tuple frame_cache_key;
+        # cdef object frame_cache_key;
         # cdef dict cache_skips;
         # cdef bint is_stepping;
         # cdef tuple abs_path_canonical_path_and_base;
@@ -367,7 +367,7 @@ def __call__(self, frame, event, arg):
 
             # Note: it's important that the context name is also given because we may hit something once
             # in the global context and another in the local context.
-            frame_cache_key = (frame.f_code.co_firstlineno, frame.f_code.co_name, frame.f_code.co_filename)
+            frame_cache_key = frame.f_code
             if frame_cache_key in cache_skips:
                 if not is_stepping:
                     # if DEBUG: print('skipped: trace_dispatch (cache hit)', frame_cache_key, frame.f_lineno, event, frame.f_code.co_name)
@@ -381,7 +381,7 @@ def __call__(self, frame, event, arg):
 
                         back_frame = frame.f_back
                         if back_frame is not None and pydev_step_cmd in (CMD_STEP_INTO, CMD_STEP_INTO_MY_CODE, CMD_STEP_RETURN, CMD_STEP_RETURN_MY_CODE):
-                            back_frame_cache_key = (back_frame.f_code.co_firstlineno, back_frame.f_code.co_name, back_frame.f_code.co_filename)
+                            back_frame_cache_key = back_frame.f_code
                             if cache_skips.get(back_frame_cache_key) == 1:
                                 # if DEBUG: print('skipped: trace_dispatch (cache hit: 1)', frame_cache_key, frame.f_lineno, event, frame.f_code.co_name)
                                 return None if event == 'call' else NO_FTRACE
@@ -421,7 +421,7 @@ def __call__(self, frame, event, arg):
                     back_frame = frame.f_back
                     if back_frame is not None and pydev_step_cmd in (CMD_STEP_INTO, CMD_STEP_INTO_MY_CODE, CMD_STEP_RETURN, CMD_STEP_RETURN_MY_CODE):
                         if py_db.apply_files_filter(back_frame, back_frame.f_code.co_filename, False):
-                            back_frame_cache_key = (back_frame.f_code.co_firstlineno, back_frame.f_code.co_name, back_frame.f_code.co_filename)
+                            back_frame_cache_key = back_frame.f_code
                             cache_skips[back_frame_cache_key] = 1
                             # if DEBUG: print('skipped: trace_dispatch (filtered out: 1)', frame_cache_key, frame.f_lineno, event, frame.f_code.co_name)
                             return None if event == 'call' else NO_FTRACE

src/debugpy/_vendored/pydevd/tests_python/test_debugger_json.py

@@ -19,7 +19,7 @@
 from _pydevd_bundle.pydevd_comm_constants import file_system_encoding
 from _pydevd_bundle.pydevd_constants import (int_types, IS_64BIT_PROCESS,
     PY_VERSION_STR, PY_IMPL_VERSION_STR, PY_IMPL_NAME, IS_PY36_OR_GREATER,
-    IS_PYPY, GENERATED_LEN_ATTR_NAME, IS_WINDOWS, IS_LINUX, IS_MAC)
+    IS_PYPY, GENERATED_LEN_ATTR_NAME, IS_WINDOWS, IS_LINUX, IS_MAC, IS_PY38_OR_GREATER)
 from tests_python import debugger_unittest
 from tests_python.debug_constants import TEST_CHERRYPY, IS_PY2, TEST_DJANGO, TEST_FLASK, IS_PY26, \
     IS_PY27, IS_CPYTHON, TEST_GEVENT, TEST_CYTHON
@@ -5988,6 +5988,43 @@ def pandas_mod():
         writer.finished_ok = True
 
 
+@pytest.mark.skipif(not IS_PY38_OR_GREATER, reason='Python 3.8 onwards required for test.')
+def test_same_lineno_and_filename(case_setup, pyfile):
+
+    @pyfile
+    def target():
+
+        def some_code():
+            print('1')  # Break here
+
+        code_obj = compile('''
+        func()
+        ''', __file__, 'exec')
+
+        code_obj = code_obj.replace(co_name=some_code.__code__.co_name, co_firstlineno=some_code.__code__.co_firstlineno)
+        exec(code_obj, {'func': some_code})
+
+        print('TEST SUCEEDED')
+
+    with case_setup.test_file(target) as writer:
+        json_facade = JsonFacade(writer)
+
+        writer.write_add_breakpoint(writer.get_line_index_with_content('Break here'))
+        json_facade.write_launch(justMyCode=False)
+        json_facade.write_make_initial_run()
+
+        json_hit = json_facade.wait_for_thread_stopped()
+        json_facade.write_continue()
+
+        if sys.version_info[:2] >= (3, 10):
+            # On Python 3.10 we'll stop twice in this specific case
+            # because the line actually matches in the caller (so
+            # this is correct based on what the debugger is seeing...)
+            json_hit = json_facade.wait_for_thread_stopped()
+            json_facade.write_continue()
+        writer.finished_ok = True
+
+
 if __name__ == '__main__':
     pytest.main(['-k', 'test_case_skipping_filters', '-s'])
 

src/debugpy/_vendored/pydevd/tests_python/test_run.py

@@ -1,15 +1,30 @@
+import pytest
 pytest_plugins = [
     str('_pytest.pytester'),
 ]
 
 
-def _run_and_check(testdir, path, check_for='Worked'):
-    result = testdir.runpython(path)
+def _run_and_check(testdir_or_pytester, path, check_for='Worked'):
+    result = testdir_or_pytester.runpython(path)
     result.stdout.fnmatch_lines([
         check_for
     ])
 
-def test_run(testdir):
+
+if hasattr(pytest, 'version_tuple') and pytest.version_tuple[0] >= 7:
+
+    @pytest.fixture
+    def testdir_or_pytester(pytester):
+        return pytester
+
+else:
+
+    @pytest.fixture
+    def testdir_or_pytester(testdir):
+        return testdir
+
+
+def test_run(testdir_or_pytester):
     from tests_python import debugger_unittest
     import sys
     import os
@@ -24,7 +39,7 @@ def test_run(testdir):
     pydevd_dir = os.path.dirname(os.path.dirname(__file__))
     assert os.path.exists(os.path.join(pydevd_dir, 'pydevd.py'))
 
-    _run_and_check(testdir, testdir.makepyfile('''
+    _run_and_check(testdir_or_pytester, testdir_or_pytester.makepyfile('''
 import sys
 sys.path.append(%(pydevd_dir)r)
 import pydevd
@@ -33,7 +48,7 @@ def test_run(testdir):
 py_db.run(%(foo_dir)r)
 ''' % locals()))
 
-    _run_and_check(testdir, testdir.makepyfile('''
+    _run_and_check(testdir_or_pytester, testdir_or_pytester.makepyfile('''
 import sys
 sys.path.append(%(pydevd_dir)r)
 import pydevd
@@ -45,7 +60,7 @@ def test_run(testdir):
         # Not valid for Python 2.6
         return
 
-    _run_and_check(testdir, testdir.makepyfile('''
+    _run_and_check(testdir_or_pytester, testdir_or_pytester.makepyfile('''
 import sys
 sys.path.append(%(pydevd_dir)r)
 sys.argv.append('--as-module')
@@ -55,7 +70,7 @@ def test_run(testdir):
 py_db.run(%(foo_module)r, is_module=True)
 ''' % locals()))
 
-    _run_and_check(testdir, testdir.makepyfile('''
+    _run_and_check(testdir_or_pytester, testdir_or_pytester.makepyfile('''
 import sys
 sys.argv.append('--as-module')
 sys.path.append(%(pydevd_dir)r)
@@ -65,7 +80,7 @@ def test_run(testdir):
 ''' % locals()))
 
 
-def test_run_on_local_module_without_adding_to_pythonpath(testdir):
+def test_run_on_local_module_without_adding_to_pythonpath(testdir_or_pytester):
     import sys
     import os
 
@@ -76,7 +91,7 @@ def test_run_on_local_module_without_adding_to_pythonpath(testdir):
     with open(os.path.join(os.getcwd(), 'local_foo.py'), 'w') as stream:
         stream.write('print("WorkedLocalFoo")')
 
-    _run_and_check(testdir, testdir.makepyfile('''
+    _run_and_check(testdir_or_pytester, testdir_or_pytester.makepyfile('''
 import sys
 import os
 sys.path.append(%(pydevd_dir)r)
@@ -90,7 +105,7 @@ def test_run_on_local_module_without_adding_to_pythonpath(testdir):
 py_db.run(%(foo_module)r, is_module=True)
 ''' % locals()), check_for='WorkedLocalFoo')
 
-    _run_and_check(testdir, testdir.makepyfile('''
+    _run_and_check(testdir_or_pytester, testdir_or_pytester.makepyfile('''
 import sys
 import os
 sys.argv.append('--as-module')