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	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167674 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			48 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			48 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
"""
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Load into LLDB with:
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script import lldbDataFormatters
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type synthetic add -x "^llvm::SmallVectorImpl<.+>$" -l lldbDataFormatters.SmallVectorSynthProvider
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type synthetic add -x "^llvm::SmallVector<.+,.+>$" -l lldbDataFormatters.SmallVectorSynthProvider
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"""
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# Pretty printer for llvm::SmallVector/llvm::SmallVectorImpl
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class SmallVectorSynthProvider:
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    def __init__(self, valobj, dict):
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        self.valobj = valobj;
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        self.update() # initialize this provider
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    def num_children(self):
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        begin = self.begin.GetValueAsUnsigned(0)
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        end = self.end.GetValueAsUnsigned(0)
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        return (end - begin)/self.type_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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        # Do bounds checking.
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        if index < 0:
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            return None
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        if index >= self.num_children():
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            return None;
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        offset = index * self.type_size
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        return self.begin.CreateChildAtOffset('['+str(index)+']',
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                                              offset, self.data_type)
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    def update(self):
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        self.begin = self.valobj.GetChildMemberWithName('BeginX')
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        self.end = self.valobj.GetChildMemberWithName('EndX')
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        the_type = self.valobj.GetType()
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        # If this is a reference type we have to dereference it to get to the
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        # template parameter.
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        if the_type.IsReferenceType():
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            the_type = the_type.GetDereferencedType()
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        self.data_type = the_type.GetTemplateArgumentType(0)
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        self.type_size = self.data_type.GetByteSize()
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        assert self.type_size != 0
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