62 lines
2.1 KiB
Python
62 lines
2.1 KiB
Python
import lldb
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class CrystalArraySyntheticProvider:
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def __init__(self, valobj, internal_dict):
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self.valobj = valobj
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self.buffer = None
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self.size = 0
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def update(self):
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if self.valobj.type.is_pointer:
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self.valobj = self.valobj.Dereference()
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self.size = int(self.valobj.child[0].value)
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self.type = self.valobj.type
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self.buffer = self.valobj.child[3]
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def num_children(self):
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size = 0 if self.size is None else self.size
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return size
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def get_child_index(self, name):
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try:
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return int(name.lstrip('[').rstrip(']'))
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except:
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return -1
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def get_child_at_index(self,index):
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if index >= self.size:
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return None
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try:
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elementType = self.buffer.type.GetPointeeType()
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offset = elementType.size * index
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return self.buffer.CreateChildAtOffset('[' + str(index) + ']', offset, elementType)
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except Exception as e:
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print('Got exception %s' % (str(e)))
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return None
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def findType(name, module):
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cachedTypes = module.GetTypes()
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for idx in range(cachedTypes.GetSize()):
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type = cachedTypes.GetTypeAtIndex(idx)
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if type.name == name:
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return type
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return None
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def CrystalString_SummaryProvider(value, dict):
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error = lldb.SBError()
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if value.TypeIsPointerType():
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value = value.Dereference()
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process = value.GetTarget().GetProcess()
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byteSize = int(value.child[0].value)
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len = int(value.child[1].value)
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len = byteSize or len
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strAddr = value.child[2].load_addr
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val = process.ReadCStringFromMemory(strAddr, len + 1, error)
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return '"%s"' % val
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def __lldb_init_module(debugger, dict):
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debugger.HandleCommand(r'type synthetic add -l crystal_formatters.CrystalArraySyntheticProvider -x "^Array\(.+\)(\s*\**)?" -w Crystal')
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debugger.HandleCommand(r'type summary add -F crystal_formatters.CrystalString_SummaryProvider -x "^(String|\(String \| Nil\))(\s*\**)?$" -w Crystal')
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debugger.HandleCommand(r'type category enable Crystal')
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