79 lines
2.4 KiB
Python
79 lines
2.4 KiB
Python
|
from lldb import SBValue, SBType
|
||
|
|
import re
|
||
|
|
|
||
|
|
# define Array(T) \
|
||
|
|
# struct { \
|
||
|
|
# T *contents; \
|
||
|
|
# uint32_t size; \
|
||
|
|
# uint32_t capacity; \
|
||
|
|
# }
|
||
|
|
|
||
|
|
|
||
|
|
class ArraySyntheticProvider:
|
||
|
|
def __init__(self, valobj: SBValue, _dict):
|
||
|
|
self.valobj: SBValue = valobj
|
||
|
|
self.update()
|
||
|
|
|
||
|
|
def num_children(self) -> int:
|
||
|
|
return 2 + self.size.GetValueAsUnsigned() # size, capacity, and elements
|
||
|
|
|
||
|
|
def get_child_index(self, name: str) -> int:
|
||
|
|
if name == "size":
|
||
|
|
return 0
|
||
|
|
elif name == "capacity":
|
||
|
|
return 1
|
||
|
|
else:
|
||
|
|
if self.size.GetValueAsUnsigned() == 0:
|
||
|
|
return 2
|
||
|
|
index = name.lstrip("[").rstrip("]")
|
||
|
|
if index.isdigit():
|
||
|
|
return int(index)
|
||
|
|
else:
|
||
|
|
return -1
|
||
|
|
|
||
|
|
def get_child_at_index(self, index: int) -> SBValue:
|
||
|
|
if index == 0:
|
||
|
|
return self.size
|
||
|
|
elif index == 1:
|
||
|
|
return self.capacity
|
||
|
|
else:
|
||
|
|
if self.size.GetValueAsUnsigned() == 0:
|
||
|
|
return self.contents
|
||
|
|
offset: int = index - 2
|
||
|
|
start: int = self.contents.GetValueAsUnsigned()
|
||
|
|
address: int = start + offset * self.element_type_size
|
||
|
|
element: SBValue = self.contents.CreateValueFromAddress(
|
||
|
|
"[%s]" % (offset), address, self.element_type
|
||
|
|
)
|
||
|
|
return element
|
||
|
|
|
||
|
|
def update(self):
|
||
|
|
self.contents: SBValue = self.valobj.GetChildMemberWithName("contents")
|
||
|
|
self.size: SBValue = self.valobj.GetChildMemberWithName("size")
|
||
|
|
self.capacity: SBValue = self.valobj.GetChildMemberWithName("capacity")
|
||
|
|
|
||
|
|
self.element_type: SBType = self.contents.GetType().GetPointeeType()
|
||
|
|
self.element_type_size: int = self.element_type.GetByteSize()
|
||
|
|
|
||
|
|
def has_children(self) -> bool:
|
||
|
|
return True
|
||
|
|
|
||
|
|
|
||
|
|
anon_re = re.compile(
|
||
|
|
r"struct\s*{$\s*\w+ \*contents;$\s*uint32_t size;$\s*uint32_t capacity;$\s*}",
|
||
|
|
re.MULTILINE,
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
# Used to recognize "anonymous" `Array(T)` types, i.e.:
|
||
|
|
# struct Foo {
|
||
|
|
# Array(Bar) bars; // Render this field usign `ArraySyntheticProvider`
|
||
|
|
# };
|
||
|
|
def anon_array_recognizer(valobj: SBType, _dict) -> bool:
|
||
|
|
type_name = valobj.GetName()
|
||
|
|
if type_name == "(unnamed struct)":
|
||
|
|
type_str = str(valobj)
|
||
|
|
return anon_re.search(type_str) is not None
|
||
|
|
else:
|
||
|
|
return False
|