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Diffstat (limited to 'examples/synthetic/unordered_multi.py')
-rw-r--r-- | examples/synthetic/unordered_multi.py | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/examples/synthetic/unordered_multi.py b/examples/synthetic/unordered_multi.py deleted file mode 100644 index da7ba456a258..000000000000 --- a/examples/synthetic/unordered_multi.py +++ /dev/null @@ -1,124 +0,0 @@ -import lldb - -_map_capping_size = 255 - - -class libcxx_hash_table_SynthProvider: - - def __init__(self, valobj, dict): - self.valobj = valobj - self.num_elements = None - self.next_element = None - self.bucket_count = None - - def update(self): - logger = lldb.formatters.Logger.Logger() - self.num_elements = None - self.next_element = None - self.bucket_count = None - try: - # unordered_map is made up of a hash_map, which has 4 pieces in it: - # bucket list : - # array of buckets - # p1 (pair): - # first - pointer to first loaded element - # p2 (pair): - # first - number of elements - # second - hash function - # p3 (pair): - # first - max_load_factor - # second - equality operator function - # - # For display, we actually don't need to go inside the buckets, since 'p1' has a way to iterate over all - # the elements directly. - # - # We will calculate other values about the map because they will be useful for the summary. - # - table = self.valobj.GetChildMemberWithName('__table_') - - bl_ptr = table.GetChildMemberWithName( - '__bucket_list_').GetChildMemberWithName('__ptr_') - self.bucket_array_ptr = bl_ptr.GetChildMemberWithName( - '__first_').GetValueAsUnsigned(0) - self.bucket_count = bl_ptr.GetChildMemberWithName('__second_').GetChildMemberWithName( - '__data_').GetChildMemberWithName('__first_').GetValueAsUnsigned(0) - logger >> "Bucket count = %r" % self.bucket_count - - self.begin_ptr = table.GetChildMemberWithName('__p1_').GetChildMemberWithName( - '__first_').GetChildMemberWithName('__next_') - - self.num_elements = table.GetChildMemberWithName( - '__p2_').GetChildMemberWithName('__first_').GetValueAsUnsigned(0) - self.max_load_factor = table.GetChildMemberWithName( - '__p3_').GetChildMemberWithName('__first_').GetValueAsUnsigned(0) - logger >> "Num elements = %r" % self.num_elements - - # save the pointers as we get them - # -- don't access this first element if num_element==0! - self.elements_cache = [] - if self.num_elements: - self.next_element = self.begin_ptr - else: - self.next_element = None - except Exception as e: - logger >> "Caught exception: %r" % e - pass - - def num_children(self): - global _map_capping_size - num_elements = self.num_elements - if num_elements is not None: - if num_elements > _map_capping_size: - num_elements = _map_capping_size - return num_elements - - def has_children(self): - return True - - def get_child_index(self, name): - logger = lldb.formatters.Logger.Logger() - try: - return int(name.lstrip('[').rstrip(']')) - except: - return -1 - - def get_child_at_index(self, index): - logger = lldb.formatters.Logger.Logger() - logger >> "Retrieving child " + str(index) - if index < 0: - return None - if index >= self.num_children(): - return None - - # extend - logger >> " : cache size starts with %d elements" % len( - self.elements_cache) - while index >= len(self.elements_cache): - # if we hit the end before we get the index, give up: - if not self.next_element: - logger >> " : hit end of list" - return None - - node = self.next_element.Dereference() - - value = node.GetChildMemberWithName('__value_') - hash_value = node.GetChildMemberWithName( - '__hash_').GetValueAsUnsigned() - self.elements_cache.append((value, hash_value)) - - self.next_element = node.GetChildMemberWithName('__next_') - if not self.next_element.GetValueAsUnsigned(0): - self.next_element = None - - # hit the index! so we have the value - logger >> " : cache size ends with %d elements" % len( - self.elements_cache) - value, hash_value = self.elements_cache[index] - return self.valobj.CreateValueFromData( - '[%d] <hash %d>' % - (index, hash_value), value.GetData(), value.GetType()) - - -def __lldb_init_module(debugger, dict): - debugger.HandleCommand( - 'type synthetic add -l unordered_multi.libcxx_hash_table_SynthProvider -x "^(std::__1::)unordered_(multi)?(map|set)<.+> >$" -w libcxx') |