| try: |
| import StringIO |
| except: |
| import io as StringIO |
| import traceback |
| from os.path import basename |
| |
| try: |
| __setFalse = False |
| except: |
| import __builtin__ |
| setattr(__builtin__, 'True', 1) |
| setattr(__builtin__, 'False', 0) |
| |
| import pydevd_constants |
| from pydevd_constants import DictIterItems, xrange |
| |
| |
| # Note: 300 is already a lot to see in the outline (after that the user should really use the shell to get things) |
| # and this also means we'll pass less information to the client side (which makes debugging faster). |
| MAX_ITEMS_TO_HANDLE = 300 |
| |
| TOO_LARGE_MSG = 'Too large to show contents. Max items to show: ' + str(MAX_ITEMS_TO_HANDLE) |
| TOO_LARGE_ATTR = 'Unable to handle:' |
| |
| #======================================================================================================================= |
| # UnableToResolveVariableException |
| #======================================================================================================================= |
| class UnableToResolveVariableException(Exception): |
| pass |
| |
| |
| #======================================================================================================================= |
| # InspectStub |
| #======================================================================================================================= |
| class InspectStub: |
| def isbuiltin(self, _args): |
| return False |
| def isroutine(self, object): |
| return False |
| |
| try: |
| import inspect |
| except: |
| inspect = InspectStub() |
| |
| try: |
| import java.lang #@UnresolvedImport |
| except: |
| pass |
| |
| #types does not include a MethodWrapperType |
| try: |
| MethodWrapperType = type([].__str__) |
| except: |
| MethodWrapperType = None |
| |
| |
| #======================================================================================================================= |
| # AbstractResolver |
| #======================================================================================================================= |
| class AbstractResolver: |
| ''' |
| This class exists only for documentation purposes to explain how to create a resolver. |
| |
| Some examples on how to resolve things: |
| - list: getDictionary could return a dict with index->item and use the index to resolve it later |
| - set: getDictionary could return a dict with id(object)->object and reiterate in that array to resolve it later |
| - arbitrary instance: getDictionary could return dict with attr_name->attr and use getattr to resolve it later |
| ''' |
| |
| def resolve(self, var, attribute): |
| ''' |
| In this method, we'll resolve some child item given the string representation of the item in the key |
| representing the previously asked dictionary. |
| |
| @param var: this is the actual variable to be resolved. |
| @param attribute: this is the string representation of a key previously returned in getDictionary. |
| ''' |
| raise NotImplementedError |
| |
| def getDictionary(self, var): |
| ''' |
| @param var: this is the variable that should have its children gotten. |
| |
| @return: a dictionary where each pair key, value should be shown to the user as children items |
| in the variables view for the given var. |
| ''' |
| raise NotImplementedError |
| |
| |
| #======================================================================================================================= |
| # DefaultResolver |
| #======================================================================================================================= |
| class DefaultResolver: |
| ''' |
| DefaultResolver is the class that'll actually resolve how to show some variable. |
| ''' |
| |
| def resolve(self, var, attribute): |
| return getattr(var, attribute) |
| |
| def getDictionary(self, var): |
| if MethodWrapperType: |
| return self._getPyDictionary(var) |
| else: |
| return self._getJyDictionary(var) |
| |
| def _getJyDictionary(self, obj): |
| ret = {} |
| found = java.util.HashMap() |
| |
| original = obj |
| if hasattr(obj, '__class__') and obj.__class__ == java.lang.Class: |
| |
| #get info about superclasses |
| classes = [] |
| classes.append(obj) |
| c = obj.getSuperclass() |
| while c != None: |
| classes.append(c) |
| c = c.getSuperclass() |
| |
| #get info about interfaces |
| interfs = [] |
| for obj in classes: |
| interfs.extend(obj.getInterfaces()) |
| classes.extend(interfs) |
| |
| #now is the time when we actually get info on the declared methods and fields |
| for obj in classes: |
| |
| declaredMethods = obj.getDeclaredMethods() |
| declaredFields = obj.getDeclaredFields() |
| for i in xrange(len(declaredMethods)): |
| name = declaredMethods[i].getName() |
| ret[name] = declaredMethods[i].toString() |
| found.put(name, 1) |
| |
| for i in xrange(len(declaredFields)): |
| name = declaredFields[i].getName() |
| found.put(name, 1) |
| #if declaredFields[i].isAccessible(): |
| declaredFields[i].setAccessible(True) |
| #ret[name] = declaredFields[i].get( declaredFields[i] ) |
| try: |
| ret[name] = declaredFields[i].get(original) |
| except: |
| ret[name] = declaredFields[i].toString() |
| |
| #this simple dir does not always get all the info, that's why we have the part before |
| #(e.g.: if we do a dir on String, some methods that are from other interfaces such as |
| #charAt don't appear) |
| try: |
| d = dir(original) |
| for name in d: |
| if found.get(name) is not 1: |
| ret[name] = getattr(original, name) |
| except: |
| #sometimes we're unable to do a dir |
| pass |
| |
| return ret |
| |
| def _getPyDictionary(self, var): |
| filterPrivate = False |
| filterSpecial = True |
| filterFunction = True |
| filterBuiltIn = True |
| |
| names = dir(var) |
| if not names and hasattr(var, '__members__'): |
| names = var.__members__ |
| d = {} |
| |
| #Be aware that the order in which the filters are applied attempts to |
| #optimize the operation by removing as many items as possible in the |
| #first filters, leaving fewer items for later filters |
| |
| if filterBuiltIn or filterFunction: |
| for n in names: |
| if filterSpecial: |
| if n.startswith('__') and n.endswith('__'): |
| continue |
| |
| if filterPrivate: |
| if n.startswith('_') or n.endswith('__'): |
| continue |
| |
| try: |
| attr = getattr(var, n) |
| |
| #filter builtins? |
| if filterBuiltIn: |
| if inspect.isbuiltin(attr): |
| continue |
| |
| #filter functions? |
| if filterFunction: |
| if inspect.isroutine(attr) or isinstance(attr, MethodWrapperType): |
| continue |
| except: |
| #if some error occurs getting it, let's put it to the user. |
| strIO = StringIO.StringIO() |
| traceback.print_exc(file=strIO) |
| attr = strIO.getvalue() |
| |
| d[ n ] = attr |
| |
| return d |
| |
| |
| #======================================================================================================================= |
| # DictResolver |
| #======================================================================================================================= |
| class DictResolver: |
| |
| def resolve(self, dict, key): |
| if key in ('__len__', TOO_LARGE_ATTR): |
| return None |
| |
| if '(' not in key: |
| #we have to treat that because the dict resolver is also used to directly resolve the global and local |
| #scopes (which already have the items directly) |
| return dict[key] |
| |
| #ok, we have to iterate over the items to find the one that matches the id, because that's the only way |
| #to actually find the reference from the string we have before. |
| expected_id = int(key.split('(')[-1][:-1]) |
| for key, val in DictIterItems(dict): |
| if id(key) == expected_id: |
| return val |
| |
| raise UnableToResolveVariableException() |
| |
| def keyStr(self, key): |
| if isinstance(key, str): |
| return "'%s'"%key |
| else: |
| if not pydevd_constants.IS_PY3K: |
| if isinstance(key, unicode): |
| return "u'%s'"%key |
| return key |
| |
| def getDictionary(self, dict): |
| ret = {} |
| |
| i = 0 |
| for key, val in DictIterItems(dict): |
| i += 1 |
| #we need to add the id because otherwise we cannot find the real object to get its contents later on. |
| key = '%s (%s)' % (self.keyStr(key), id(key)) |
| ret[key] = val |
| if i > MAX_ITEMS_TO_HANDLE: |
| ret[TOO_LARGE_ATTR] = TOO_LARGE_MSG |
| break |
| |
| ret['__len__'] = len(dict) |
| return ret |
| |
| |
| |
| #======================================================================================================================= |
| # TupleResolver |
| #======================================================================================================================= |
| class TupleResolver: #to enumerate tuples and lists |
| |
| def resolve(self, var, attribute): |
| ''' |
| @param var: that's the original attribute |
| @param attribute: that's the key passed in the dict (as a string) |
| ''' |
| if attribute in ('__len__', TOO_LARGE_ATTR): |
| return None |
| return var[int(attribute)] |
| |
| def getDictionary(self, var): |
| l = len(var) |
| d = {} |
| |
| format_str = '%0' + str(int(len(str(l)))) + 'd' |
| |
| i = 0 |
| for item in var: |
| d[format_str % i] = item |
| i += 1 |
| |
| if i > MAX_ITEMS_TO_HANDLE: |
| d[TOO_LARGE_ATTR] = TOO_LARGE_MSG |
| break |
| |
| d['__len__'] = len(var) |
| return d |
| |
| |
| |
| #======================================================================================================================= |
| # SetResolver |
| #======================================================================================================================= |
| class SetResolver: |
| ''' |
| Resolves a set as dict id(object)->object |
| ''' |
| |
| def resolve(self, var, attribute): |
| if attribute in ('__len__', TOO_LARGE_ATTR): |
| return None |
| |
| attribute = int(attribute) |
| for v in var: |
| if id(v) == attribute: |
| return v |
| |
| raise UnableToResolveVariableException('Unable to resolve %s in %s' % (attribute, var)) |
| |
| def getDictionary(self, var): |
| d = {} |
| i = 0 |
| for item in var: |
| i+= 1 |
| d[id(item)] = item |
| |
| if i > MAX_ITEMS_TO_HANDLE: |
| d[TOO_LARGE_ATTR] = TOO_LARGE_MSG |
| break |
| |
| |
| d['__len__'] = len(var) |
| return d |
| |
| |
| #======================================================================================================================= |
| # InstanceResolver |
| #======================================================================================================================= |
| class InstanceResolver: |
| |
| def resolve(self, var, attribute): |
| field = var.__class__.getDeclaredField(attribute) |
| field.setAccessible(True) |
| return field.get(var) |
| |
| def getDictionary(self, obj): |
| ret = {} |
| |
| declaredFields = obj.__class__.getDeclaredFields() |
| for i in xrange(len(declaredFields)): |
| name = declaredFields[i].getName() |
| try: |
| declaredFields[i].setAccessible(True) |
| ret[name] = declaredFields[i].get(obj) |
| except: |
| traceback.print_exc() |
| |
| return ret |
| |
| |
| #======================================================================================================================= |
| # JyArrayResolver |
| #======================================================================================================================= |
| class JyArrayResolver: |
| ''' |
| This resolves a regular Object[] array from java |
| ''' |
| |
| def resolve(self, var, attribute): |
| if attribute == '__len__': |
| return None |
| return var[int(attribute)] |
| |
| def getDictionary(self, obj): |
| ret = {} |
| |
| for i in xrange(len(obj)): |
| ret[ i ] = obj[i] |
| |
| ret['__len__'] = len(obj) |
| return ret |
| |
| |
| #======================================================================================================================= |
| # NdArrayResolver |
| #======================================================================================================================= |
| class NdArrayResolver: |
| ''' |
| This resolves a numpy ndarray returning some metadata about the NDArray |
| ''' |
| |
| def is_numeric(self, obj): |
| if not hasattr(obj, 'dtype'): |
| return False |
| return obj.dtype.kind in 'biufc' |
| |
| def resolve(self, obj, attribute): |
| if attribute == '__internals__': |
| return defaultResolver.getDictionary(obj) |
| if attribute == 'min': |
| if self.is_numeric(obj): |
| return obj.min() |
| else: |
| return None |
| if attribute == 'max': |
| if self.is_numeric(obj): |
| return obj.max() |
| else: |
| return None |
| if attribute == 'shape': |
| return obj.shape |
| if attribute == 'dtype': |
| return obj.dtype |
| if attribute == 'size': |
| return obj.size |
| return None |
| |
| def getDictionary(self, obj): |
| ret = dict() |
| ret['__internals__'] = defaultResolver.getDictionary(obj) |
| if obj.size > 1024 * 1024: |
| ret['min'] = 'ndarray too big, calculating min would slow down debugging' |
| ret['max'] = 'ndarray too big, calculating max would slow down debugging' |
| else: |
| if self.is_numeric(obj): |
| ret['min'] = obj.min() |
| ret['max'] = obj.max() |
| else: |
| ret['min'] = 'not a numeric object' |
| ret['max'] = 'not a numeric object' |
| ret['shape'] = obj.shape |
| ret['dtype'] = obj.dtype |
| ret['size'] = obj.size |
| return ret |
| |
| |
| #======================================================================================================================= |
| # FrameResolver |
| #======================================================================================================================= |
| class FrameResolver: |
| ''' |
| This resolves a frame. |
| ''' |
| |
| def resolve(self, obj, attribute): |
| if attribute == '__internals__': |
| return defaultResolver.getDictionary(obj) |
| |
| if attribute == 'stack': |
| return self.getFrameStack(obj) |
| |
| if attribute == 'f_locals': |
| return obj.f_locals |
| |
| return None |
| |
| |
| def getDictionary(self, obj): |
| ret = dict() |
| ret['__internals__'] = defaultResolver.getDictionary(obj) |
| ret['stack'] = self.getFrameStack(obj) |
| ret['f_locals'] = obj.f_locals |
| return ret |
| |
| |
| def getFrameStack(self, frame): |
| ret = [] |
| if frame is not None: |
| ret.append(self.getFrameName(frame)) |
| |
| while frame.f_back: |
| frame = frame.f_back |
| ret.append(self.getFrameName(frame)) |
| |
| return ret |
| |
| def getFrameName(self, frame): |
| if frame is None: |
| return 'None' |
| try: |
| name = basename(frame.f_code.co_filename) |
| return 'frame: %s [%s:%s] id:%s' % (frame.f_code.co_name, name, frame.f_lineno, id(frame)) |
| except: |
| return 'frame object' |
| |
| |
| defaultResolver = DefaultResolver() |
| dictResolver = DictResolver() |
| tupleResolver = TupleResolver() |
| instanceResolver = InstanceResolver() |
| jyArrayResolver = JyArrayResolver() |
| setResolver = SetResolver() |
| ndarrayResolver = NdArrayResolver() |
| frameResolver = FrameResolver() |
