Snapshot idea/138.1696 from git://git.jetbrains.org/idea/community.git
Change-Id: I50c97b83a815ce635e49a38380ba5b8765e4b16a
diff --git a/python/helpers/pydev/pydevd_traceproperty.py b/python/helpers/pydev/pydevd_traceproperty.py
new file mode 100644
index 0000000..d8e7e5f
--- /dev/null
+++ b/python/helpers/pydev/pydevd_traceproperty.py
@@ -0,0 +1,108 @@
+'''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
+