diff options
| author | floatdrop <[email protected]> | 2022-02-10 16:47:15 +0300 |
|---|---|---|
| committer | Daniil Cherednik <[email protected]> | 2022-02-10 16:47:15 +0300 |
| commit | 4267de875ca703ff841f2e025723dadc78f3cc02 (patch) | |
| tree | 9814fbd1c3effac9b8377c5d604b367b14e2db55 /contrib/python/Jinja2/py2/jinja2/debug.py | |
| parent | e63b84f1d39557d9e46ac380b1f388271894293c (diff) | |
Restoring authorship annotation for <[email protected]>. Commit 2 of 2.
Diffstat (limited to 'contrib/python/Jinja2/py2/jinja2/debug.py')
| -rw-r--r-- | contrib/python/Jinja2/py2/jinja2/debug.py | 138 |
1 files changed, 69 insertions, 69 deletions
diff --git a/contrib/python/Jinja2/py2/jinja2/debug.py b/contrib/python/Jinja2/py2/jinja2/debug.py index 70f7f66c64f..5d8aec31d05 100644 --- a/contrib/python/Jinja2/py2/jinja2/debug.py +++ b/contrib/python/Jinja2/py2/jinja2/debug.py @@ -1,19 +1,19 @@ -import sys +import sys from types import CodeType - + from . import TemplateSyntaxError from ._compat import PYPY from .utils import internal_code from .utils import missing - - + + def rewrite_traceback_stack(source=None): """Rewrite the current exception to replace any tracebacks from within compiled template code with tracebacks that look like they came from the template source. - + This must be called within an ``except`` block. - + :param exc_info: A :meth:`sys.exc_info` tuple. If not provided, the current ``exc_info`` is used. :param source: For ``TemplateSyntaxError``, the original source if @@ -21,18 +21,18 @@ def rewrite_traceback_stack(source=None): :return: A :meth:`sys.exc_info` tuple that can be re-raised. """ exc_type, exc_value, tb = sys.exc_info() - + if isinstance(exc_value, TemplateSyntaxError) and not exc_value.translated: exc_value.translated = True exc_value.source = source - + try: # Remove the old traceback on Python 3, otherwise the frames # from the compiler still show up. exc_value.with_traceback(None) except AttributeError: pass - + # Outside of runtime, so the frame isn't executing template # code, but it still needs to point at the template. tb = fake_traceback( @@ -41,9 +41,9 @@ def rewrite_traceback_stack(source=None): else: # Skip the frame for the render function. tb = tb.tb_next - + stack = [] - + # Build the stack of traceback object, replacing any in template # code with the source file and line information. while tb is not None: @@ -52,33 +52,33 @@ def rewrite_traceback_stack(source=None): if tb.tb_frame.f_code in internal_code: tb = tb.tb_next continue - + template = tb.tb_frame.f_globals.get("__jinja_template__") - + if template is not None: lineno = template.get_corresponding_lineno(tb.tb_lineno) fake_tb = fake_traceback(exc_value, tb, template.filename, lineno) stack.append(fake_tb) - else: + else: stack.append(tb) - + tb = tb.tb_next - + tb_next = None - + # Assign tb_next in reverse to avoid circular references. for tb in reversed(stack): tb_next = tb_set_next(tb, tb_next) - + return exc_type, exc_value, tb_next - - + + def fake_traceback(exc_value, tb, filename, lineno): """Produce a new traceback object that looks like it came from the template source instead of the compiled code. The filename, line number, and location name will point to the template, and the local variables will be the current template context. - + :param exc_value: The original exception to be re-raised to create the new traceback. :param tb: The original traceback to get the local variables and @@ -91,9 +91,9 @@ def fake_traceback(exc_value, tb, filename, lineno): # available at that point in the template. locals = get_template_locals(tb.tb_frame.f_locals) locals.pop("__jinja_exception__", None) - else: + else: locals = {} - + globals = { "__name__": filename, "__file__": filename, @@ -101,25 +101,25 @@ def fake_traceback(exc_value, tb, filename, lineno): } # Raise an exception at the correct line number. code = compile("\n" * (lineno - 1) + "raise __jinja_exception__", filename, "exec") - + # Build a new code object that points to the template file and # replaces the location with a block name. try: location = "template" - + if tb is not None: function = tb.tb_frame.f_code.co_name - + if function == "root": location = "top-level template code" elif function.startswith("block_"): location = 'block "%s"' % function[6:] - + # Collect arguments for the new code object. CodeType only # accepts positional arguments, and arguments were inserted in # new Python versions. code_args = [] - + for attr in ( "argcount", "posonlyargcount", # Python 3.8 @@ -142,88 +142,88 @@ def fake_traceback(exc_value, tb, filename, lineno): # Replace with given value. code_args.append(attr[1]) continue - + try: # Copy original value if it exists. code_args.append(getattr(code, "co_" + attr)) except AttributeError: # Some arguments were added later. continue - + code = CodeType(*code_args) except Exception: # Some environments such as Google App Engine don't support # modifying code objects. pass - + # Execute the new code, which is guaranteed to raise, and return # the new traceback without this frame. try: exec(code, globals, locals) except BaseException: return sys.exc_info()[2].tb_next - - + + def get_template_locals(real_locals): """Based on the runtime locals, get the context that would be available at that point in the template. """ # Start with the current template context. ctx = real_locals.get("context") - - if ctx: + + if ctx: data = ctx.get_all().copy() - else: + else: data = {} - + # Might be in a derived context that only sets local variables # rather than pushing a context. Local variables follow the scheme # l_depth_name. Find the highest-depth local that has a value for # each name. - local_overrides = {} - + local_overrides = {} + for name, value in real_locals.items(): if not name.startswith("l_") or value is missing: # Not a template variable, or no longer relevant. - continue + continue - try: + try: _, depth, name = name.split("_", 2) - depth = int(depth) - except ValueError: - continue + depth = int(depth) + except ValueError: + continue + + cur_depth = local_overrides.get(name, (-1,))[0] - cur_depth = local_overrides.get(name, (-1,))[0] + if cur_depth < depth: + local_overrides[name] = (depth, value) - if cur_depth < depth: - local_overrides[name] = (depth, value) - # Modify the context with any derived context. for name, (_, value) in local_overrides.items(): - if value is missing: + if value is missing: data.pop(name, None) - else: + else: data[name] = value - + return data - - + + if sys.version_info >= (3, 7): # tb_next is directly assignable as of Python 3.7 def tb_set_next(tb, tb_next): tb.tb_next = tb_next return tb - - + + elif PYPY: # PyPy might have special support, and won't work with ctypes. - try: + try: import tputil except ImportError: # Without tproxy support, use the original traceback. def tb_set_next(tb, tb_next): return tb - + else: # With tproxy support, create a proxy around the traceback that # returns the new tb_next. @@ -231,38 +231,38 @@ elif PYPY: def controller(op): if op.opname == "__getattribute__" and op.args[0] == "tb_next": return tb_next - + return op.delegate() - + return tputil.make_proxy(controller, obj=tb) - - + + else: # Use ctypes to assign tb_next at the C level since it's read-only # from Python. - import ctypes - + import ctypes + class _CTraceback(ctypes.Structure): _fields_ = [ # Extra PyObject slots when compiled with Py_TRACE_REFS. ("PyObject_HEAD", ctypes.c_byte * object().__sizeof__()), # Only care about tb_next as an object, not a traceback. ("tb_next", ctypes.py_object), - ] - + ] + def tb_set_next(tb, tb_next): c_tb = _CTraceback.from_address(id(tb)) - + # Clear out the old tb_next. - if tb.tb_next is not None: + if tb.tb_next is not None: c_tb_next = ctypes.py_object(tb.tb_next) c_tb.tb_next = ctypes.py_object() ctypes.pythonapi.Py_DecRef(c_tb_next) - + # Assign the new tb_next. if tb_next is not None: c_tb_next = ctypes.py_object(tb_next) ctypes.pythonapi.Py_IncRef(c_tb_next) c_tb.tb_next = c_tb_next - + return tb |
