diff options
Diffstat (limited to 'utils/gdb-scripts')
-rw-r--r-- | utils/gdb-scripts/prettyprinters.py | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/utils/gdb-scripts/prettyprinters.py b/utils/gdb-scripts/prettyprinters.py index 1ebe50b2b71..cf1c96a449e 100644 --- a/utils/gdb-scripts/prettyprinters.py +++ b/utils/gdb-scripts/prettyprinters.py @@ -103,9 +103,38 @@ class ArrayRefPrinter: def display_hint (self): return 'array' +class OptionalPrinter: + """Print an llvm::Optional object.""" + + def __init__(self, value): + self.value = value + + class _iterator: + def __init__(self, member, empty): + self.member = member + self.done = empty + + def __iter__(self): + return self + + def next(self): + if self.done: + raise StopIteration + self.done = True + return ('value', self.member.dereference()) + + def children(self): + if not self.value['hasVal']: + return self._iterator('', True) + return self._iterator(self.value['storage']['buffer'].address.cast(self.value.type.template_argument(0).pointer()), False) + + def to_string(self): + return 'llvm::Optional is %sinitialized' % ('' if self.value['hasVal'] else 'not ') + pp = gdb.printing.RegexpCollectionPrettyPrinter("LLVMSupport") pp.add_printer('llvm::SmallString', '^llvm::SmallString<.*>$', SmallStringPrinter) pp.add_printer('llvm::StringRef', '^llvm::StringRef$', StringRefPrinter) pp.add_printer('llvm::SmallVectorImpl', '^llvm::SmallVector(Impl)?<.*>$', SmallVectorPrinter) pp.add_printer('llvm::ArrayRef', '^llvm::(Const)?ArrayRef<.*>$', ArrayRefPrinter) +pp.add_printer('llvm::Optional', '^llvm::Optional<.*>$', OptionalPrinter) gdb.printing.register_pretty_printer(gdb.current_objfile(), pp) |