Benjamin Kramer | f61f22a | 2012-01-17 14:52:12 +0000 | [diff] [blame] | 1 | """ |
| 2 | Load into LLDB with: |
| 3 | script import lldbDataFormatters |
| 4 | type synthetic add -x "^llvm::SmallVectorImpl<.+>$" -l lldbDataFormatters.SmallVectorSynthProvider |
Benjamin Kramer | 7994959 | 2012-11-10 09:45:32 +0000 | [diff] [blame] | 5 | type synthetic add -x "^llvm::SmallVector<.+,.+>$" -l lldbDataFormatters.SmallVectorSynthProvider |
Benjamin Kramer | f61f22a | 2012-01-17 14:52:12 +0000 | [diff] [blame] | 6 | """ |
| 7 | |
| 8 | # Pretty printer for llvm::SmallVector/llvm::SmallVectorImpl |
| 9 | class SmallVectorSynthProvider: |
| 10 | def __init__(self, valobj, dict): |
| 11 | self.valobj = valobj; |
| 12 | self.update() # initialize this provider |
| 13 | |
| 14 | def num_children(self): |
| 15 | begin = self.begin.GetValueAsUnsigned(0) |
| 16 | end = self.end.GetValueAsUnsigned(0) |
| 17 | return (end - begin)/self.type_size |
| 18 | |
| 19 | def get_child_index(self, name): |
| 20 | try: |
| 21 | return int(name.lstrip('[').rstrip(']')) |
| 22 | except: |
| 23 | return -1; |
| 24 | |
| 25 | def get_child_at_index(self, index): |
| 26 | # Do bounds checking. |
| 27 | if index < 0: |
| 28 | return None |
| 29 | if index >= self.num_children(): |
| 30 | return None; |
| 31 | |
| 32 | offset = index * self.type_size |
| 33 | return self.begin.CreateChildAtOffset('['+str(index)+']', |
| 34 | offset, self.data_type) |
| 35 | |
Benjamin Kramer | f61f22a | 2012-01-17 14:52:12 +0000 | [diff] [blame] | 36 | def update(self): |
| 37 | self.begin = self.valobj.GetChildMemberWithName('BeginX') |
| 38 | self.end = self.valobj.GetChildMemberWithName('EndX') |
Benjamin Kramer | 7994959 | 2012-11-10 09:45:32 +0000 | [diff] [blame] | 39 | the_type = self.valobj.GetType() |
| 40 | # If this is a reference type we have to dereference it to get to the |
| 41 | # template parameter. |
| 42 | if the_type.IsReferenceType(): |
| 43 | the_type = the_type.GetDereferencedType() |
| 44 | |
| 45 | self.data_type = the_type.GetTemplateArgumentType(0) |
Benjamin Kramer | f61f22a | 2012-01-17 14:52:12 +0000 | [diff] [blame] | 46 | self.type_size = self.data_type.GetByteSize() |
Benjamin Kramer | 7994959 | 2012-11-10 09:45:32 +0000 | [diff] [blame] | 47 | assert self.type_size != 0 |