| David Blaikie | 09ec575 | 2016-06-01 01:02:32 +0000 | [diff] [blame^] | 1 | import gdb.printing |
| 2 | class SmallStringPrinter: |
| 3 | """Print an llvm::SmallString object.""" |
| 4 | |
| 5 | def __init__(self, val): |
| 6 | self.val = val |
| 7 | |
| 8 | def to_string(self): |
| 9 | begin = self.val['BeginX'] |
| 10 | end = self.val['EndX'] |
| 11 | return begin.cast(gdb.lookup_type("char").pointer()).string(length = end - begin) |
| 12 | |
| 13 | def display_hint (self): |
| 14 | return 'string' |
| 15 | |
| 16 | class StringRefPrinter: |
| 17 | """Print an llvm::StringRef object.""" |
| 18 | |
| 19 | def __init__(self, val): |
| 20 | self.val = val |
| 21 | |
| 22 | def to_string(self): |
| 23 | return self.val['Data'].string(length = self.val['Length']) |
| 24 | |
| 25 | def display_hint (self): |
| 26 | return 'string' |
| 27 | |
| 28 | class SmallVectorPrinter: |
| 29 | """Print an llvm::SmallVector object.""" |
| 30 | |
| 31 | class _iterator: |
| 32 | def __init__(self, begin, end): |
| 33 | self.cur = begin |
| 34 | self.end = end |
| 35 | self.count = 0 |
| 36 | |
| 37 | def __iter__(self): |
| 38 | return self |
| 39 | |
| 40 | def next(self): |
| 41 | if self.cur == self.end: |
| 42 | raise StopIteration |
| 43 | count = self.count |
| 44 | self.count = self.count + 1 |
| 45 | cur = self.cur |
| 46 | self.cur = self.cur + 1 |
| 47 | return '[%d]' % count, cur.dereference() |
| 48 | |
| 49 | def __init__(self, val): |
| 50 | self.val = val |
| 51 | |
| 52 | def children(self): |
| 53 | t = self.val.type.template_argument(0).pointer() |
| 54 | begin = self.val['BeginX'].cast(t) |
| 55 | end = self.val['EndX'].cast(t) |
| 56 | return self._iterator(begin, end) |
| 57 | |
| 58 | def to_string(self): |
| 59 | t = self.val.type.template_argument(0).pointer() |
| 60 | begin = self.val['BeginX'].cast(t) |
| 61 | end = self.val['EndX'].cast(t) |
| 62 | capacity = self.val['CapacityX'].cast(t) |
| 63 | return 'llvm::SmallVector of length %d, capacity %d' % (end - begin, capacity - begin) |
| 64 | |
| 65 | def display_hint (self): |
| 66 | return 'array' |
| 67 | |
| 68 | class ArrayRefPrinter: |
| 69 | """Print an llvm::ArrayRef object.""" |
| 70 | |
| 71 | class _iterator: |
| 72 | def __init__(self, begin, end): |
| 73 | self.cur = begin |
| 74 | self.end = end |
| 75 | self.count = 0 |
| 76 | |
| 77 | def __iter__(self): |
| 78 | return self |
| 79 | |
| 80 | def next(self): |
| 81 | if self.cur == self.end: |
| 82 | raise StopIteration |
| 83 | count = self.count |
| 84 | self.count = self.count + 1 |
| 85 | cur = self.cur |
| 86 | self.cur = self.cur + 1 |
| 87 | return '[%d]' % count, cur.dereference() |
| 88 | |
| 89 | def __init__(self, val): |
| 90 | self.val = val |
| 91 | |
| 92 | def children(self): |
| 93 | data = self.val['Data'] |
| 94 | return self._iterator(data, data + self.val['Length']) |
| 95 | |
| 96 | def to_string(self): |
| 97 | return 'llvm::ArrayRef of length %d' % (self.val['Length']) |
| 98 | |
| 99 | def display_hint (self): |
| 100 | return 'array' |
| 101 | |
| 102 | pp = gdb.printing.RegexpCollectionPrettyPrinter("LLVMSupport") |
| 103 | pp.add_printer('llvm::SmallString', '^llvm::SmallString<.*>$', SmallStringPrinter) |
| 104 | pp.add_printer('llvm::StringRef', '^llvm::StringRef$', StringRefPrinter) |
| 105 | pp.add_printer('llvm::SmallVectorImpl', '^llvm::SmallVector(Impl)?<.*>$', SmallVectorPrinter) |
| 106 | pp.add_printer('llvm::ArrayRef', '^llvm::(Const)?ArrayRef<.*>$', ArrayRefPrinter) |
| 107 | gdb.printing.register_pretty_printer(gdb.current_objfile(), pp) |