| '''For debug purpose we are replacing actual builtin property by the debug property |
| ''' |
| from pydevd_comm import GetGlobalDebugger |
| from pydevd_constants import * #@UnusedWildImport |
| import pydevd_tracing |
| |
| #======================================================================================================================= |
| # replace_builtin_property |
| #======================================================================================================================= |
| def replace_builtin_property(new_property=None): |
| if new_property is None: |
| new_property = DebugProperty |
| original = property |
| if not IS_PY3K: |
| try: |
| import __builtin__ |
| __builtin__.__dict__['property'] = new_property |
| except: |
| if DebugInfoHolder.DEBUG_TRACE_LEVEL: |
| import traceback;traceback.print_exc() #@Reimport |
| else: |
| try: |
| import builtins #Python 3.0 does not have the __builtin__ module @UnresolvedImport |
| builtins.__dict__['property'] = new_property |
| except: |
| if DebugInfoHolder.DEBUG_TRACE_LEVEL: |
| import traceback;traceback.print_exc() #@Reimport |
| return original |
| |
| |
| #======================================================================================================================= |
| # DebugProperty |
| #======================================================================================================================= |
| class DebugProperty(object): |
| """A custom property which allows python property to get |
| controlled by the debugger and selectively disable/re-enable |
| the tracing. |
| """ |
| |
| |
| def __init__(self, fget=None, fset=None, fdel=None, doc=None): |
| self.fget = fget |
| self.fset = fset |
| self.fdel = fdel |
| self.__doc__ = doc |
| |
| |
| def __get__(self, obj, objtype=None): |
| if obj is None: |
| return self |
| global_debugger = GetGlobalDebugger() |
| try: |
| if global_debugger is not None and global_debugger.disable_property_getter_trace: |
| pydevd_tracing.SetTrace(None) |
| if self.fget is None: |
| raise AttributeError("unreadable attribute") |
| return self.fget(obj) |
| finally: |
| if global_debugger is not None: |
| pydevd_tracing.SetTrace(global_debugger.trace_dispatch) |
| |
| |
| def __set__(self, obj, value): |
| global_debugger = GetGlobalDebugger() |
| try: |
| if global_debugger is not None and global_debugger.disable_property_setter_trace: |
| pydevd_tracing.SetTrace(None) |
| if self.fset is None: |
| raise AttributeError("can't set attribute") |
| self.fset(obj, value) |
| finally: |
| if global_debugger is not None: |
| pydevd_tracing.SetTrace(global_debugger.trace_dispatch) |
| |
| |
| def __delete__(self, obj): |
| global_debugger = GetGlobalDebugger() |
| try: |
| if global_debugger is not None and global_debugger.disable_property_deleter_trace: |
| pydevd_tracing.SetTrace(None) |
| if self.fdel is None: |
| raise AttributeError("can't delete attribute") |
| self.fdel(obj) |
| finally: |
| if global_debugger is not None: |
| pydevd_tracing.SetTrace(global_debugger.trace_dispatch) |
| |
| |
| def getter(self, fget): |
| """Overriding getter decorator for the property |
| """ |
| self.fget = fget |
| return self |
| |
| |
| def setter(self, fset): |
| """Overriding setter decorator for the property |
| """ |
| self.fset = fset |
| return self |
| |
| |
| def deleter(self, fdel): |
| """Overriding deleter decorator for the property |
| """ |
| self.fdel = fdel |
| return self |
| |
