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108 lines
2.8 KiB
108 lines
2.8 KiB
4 months ago
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import gdb.printing
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class SmallStringPrinter:
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"""Print an llvm::SmallString object."""
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def __init__(self, val):
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self.val = val
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def to_string(self):
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begin = self.val['BeginX']
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end = self.val['EndX']
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return begin.cast(gdb.lookup_type("char").pointer()).string(length = end - begin)
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def display_hint (self):
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return 'string'
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class StringRefPrinter:
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"""Print an llvm::StringRef object."""
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def __init__(self, val):
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self.val = val
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def to_string(self):
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return self.val['Data'].string(length = self.val['Length'])
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def display_hint (self):
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return 'string'
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class SmallVectorPrinter:
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"""Print an llvm::SmallVector object."""
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class _iterator:
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def __init__(self, begin, end):
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self.cur = begin
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self.end = end
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self.count = 0
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def __iter__(self):
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return self
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def next(self):
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if self.cur == self.end:
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raise StopIteration
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count = self.count
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self.count = self.count + 1
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cur = self.cur
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self.cur = self.cur + 1
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return '[%d]' % count, cur.dereference()
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def __init__(self, val):
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self.val = val
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def children(self):
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t = self.val.type.template_argument(0).pointer()
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begin = self.val['BeginX'].cast(t)
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end = self.val['EndX'].cast(t)
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return self._iterator(begin, end)
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def to_string(self):
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t = self.val.type.template_argument(0).pointer()
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begin = self.val['BeginX'].cast(t)
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end = self.val['EndX'].cast(t)
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capacity = self.val['CapacityX'].cast(t)
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return 'llvm::SmallVector of length %d, capacity %d' % (end - begin, capacity - begin)
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def display_hint (self):
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return 'array'
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class ArrayRefPrinter:
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"""Print an llvm::ArrayRef object."""
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class _iterator:
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def __init__(self, begin, end):
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self.cur = begin
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self.end = end
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self.count = 0
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def __iter__(self):
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return self
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def next(self):
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if self.cur == self.end:
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raise StopIteration
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count = self.count
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self.count = self.count + 1
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cur = self.cur
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self.cur = self.cur + 1
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return '[%d]' % count, cur.dereference()
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def __init__(self, val):
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self.val = val
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def children(self):
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data = self.val['Data']
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return self._iterator(data, data + self.val['Length'])
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def to_string(self):
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return 'llvm::ArrayRef of length %d' % (self.val['Length'])
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def display_hint (self):
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return 'array'
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pp = gdb.printing.RegexpCollectionPrettyPrinter("LLVMSupport")
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pp.add_printer('llvm::SmallString', '^llvm::SmallString<.*>$', SmallStringPrinter)
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pp.add_printer('llvm::StringRef', '^llvm::StringRef$', StringRefPrinter)
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pp.add_printer('llvm::SmallVectorImpl', '^llvm::SmallVector(Impl)?<.*>$', SmallVectorPrinter)
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pp.add_printer('llvm::ArrayRef', '^llvm::(Const)?ArrayRef<.*>$', ArrayRefPrinter)
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gdb.printing.register_pretty_printer(gdb.current_objfile(), pp)
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