forked from OSchip/llvm-project
65 lines
2.6 KiB
Python
65 lines
2.6 KiB
Python
import re
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class StdListSynthProvider:
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def __init__(self, valobj, dict):
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self.valobj = valobj
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self.update()
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def num_children(self):
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next_val = self.next.GetValueAsUnsigned(0)
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prev_val = self.prev.GetValueAsUnsigned(0)
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# After a std::list has been initialized, both next and prev will be non-NULL
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if next_val == 0 or prev_val == 0:
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return 0
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if next_val == self.node_address:
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return 0
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if next_val == prev_val:
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return 1
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size = 2
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current = self.next
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while current.GetChildMemberWithName('_M_next').GetValueAsUnsigned(0) != self.node_address:
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size = size + 1
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current = current.GetChildMemberWithName('_M_next')
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return (size - 1)
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def get_child_index(self,name):
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return int(name.lstrip('[').rstrip(']'))
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def get_child_at_index(self,index):
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if index >= self.num_children():
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return None;
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offset = index
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current = self.next
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while offset > 0:
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current = current.GetChildMemberWithName('_M_next')
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offset = offset - 1
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return current.CreateChildAtOffset('['+str(index)+']',2*current.GetType().GetByteSize(),self.data_type)
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def extract_type_name(self,name):
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self.type_name = name[16:]
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index = 2
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count_of_template = 1
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while index < len(self.type_name):
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if self.type_name[index] == '<':
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count_of_template = count_of_template + 1
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elif self.type_name[index] == '>':
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count_of_template = count_of_template - 1
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elif self.type_name[index] == ',' and count_of_template == 1:
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self.type_name = self.type_name[:index]
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break
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index = index + 1
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self.type_name_nospaces = self.type_name.replace(", ", ",")
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def update(self):
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impl = self.valobj.GetChildMemberWithName('_M_impl')
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node = impl.GetChildMemberWithName('_M_node')
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self.extract_type_name(impl.GetType().GetName())
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self.node_address = self.valobj.AddressOf().GetValueAsUnsigned(0)
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self.next = node.GetChildMemberWithName('_M_next')
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self.prev = node.GetChildMemberWithName('_M_prev')
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self.data_type = node.GetTarget().FindFirstType(self.type_name)
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# tries to fight against a difference in formatting type names between gcc and clang
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if self.data_type.IsValid() == False:
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self.data_type = node.GetTarget().FindFirstType(self.type_name_nospaces)
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self.data_size = self.data_type.GetByteSize()
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