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Make the Twine pretty-printer work with GDB 7.11 

Apparently ::NodeKind is sometimes part of the name in GDB.
Without this patch I get the following error message from GDB:
`Unhandled NodeKind llvm::Twine::NodeKind::EmptyKind`.

Patch by Alexander Richardson!

Differential Revision: https://reviews.llvm.org/D32795

llvm-svn: 304675
This commit is contained in:
David Blaikie 2017-06-04 03:27:12 +00:00
parent 921e4ddbad
commit 719c94a559
1 changed files with 22 additions and 14 deletions
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36
llvm/utils/gdb-scripts/prettyprinters.py
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@ -226,54 +226,62 @@ class TwinePrinter:
return s
def is_twine_kind(self, kind, expected):
if not kind.endswith(expected):
return False
# apparently some GDB versions add the NodeKind:: namespace
# (happens for me on GDB 7.11)
return kind in ('llvm::Twine::' + expected,
'llvm::Twine::NodeKind::' + expected)
def string_from_child(self, child, kind):
'''Return the string representation of the Twine::Child child.'''
if kind in ('llvm::Twine::EmptyKind', 'llvm::Twine::NullKind'):
if self.is_twine_kind(kind, 'EmptyKind') or self.is_twine_kind(kind, 'NullKind'):
return ''
if kind == 'llvm::Twine::TwineKind':
if self.is_twine_kind(kind, 'TwineKind'):
return self.string_from_twine_object(child['twine'].dereference())
if kind == 'llvm::Twine::CStringKind':
if self.is_twine_kind(kind, 'CStringKind'):
return child['cString'].string()
if kind == 'llvm::Twine::StdStringKind':
if self.is_twine_kind(kind, 'StdStringKind'):
val = child['stdString'].dereference()
return self.string_from_pretty_printer_lookup(val)
if kind == 'llvm::Twine::StringRefKind':
if self.is_twine_kind(kind, 'StringRefKind'):
val = child['stringRef'].dereference()
pp = StringRefPrinter(val)
return pp.to_string()
if kind == 'llvm::Twine::SmallStringKind':
if self.is_twine_kind(kind, 'SmallStringKind'):
val = child['smallString'].dereference()
pp = SmallStringPrinter(val)
return pp.to_string()
if kind == 'llvm::Twine::CharKind':
if self.is_twine_kind(kind, 'CharKind'):
return chr(child['character'])
if kind == 'llvm::Twine::DecUIKind':
if self.is_twine_kind(kind, 'DecUIKind'):
return str(child['decUI'])
if kind == 'llvm::Twine::DecIKind':
if self.is_twine_kind(kind, 'DecIKind'):
return str(child['decI'])
if kind == 'llvm::Twine::DecULKind':
if self.is_twine_kind(kind, 'DecULKind'):
return str(child['decUL'].dereference())
if kind == 'llvm::Twine::DecLKind':
if self.is_twine_kind(kind, 'DecLKind'):
return str(child['decL'].dereference())
if kind == 'llvm::Twine::DecULLKind':
if self.is_twine_kind(kind, 'DecULLKind'):
return str(child['decULL'].dereference())
if kind == 'llvm::Twine::DecLLKind':
if self.is_twine_kind(kind, 'DecLLKind'):
return str(child['decLL'].dereference())
if kind == 'llvm::Twine::UHexKind':
if self.is_twine_kind(kind, 'UHexKind'):
val = child['uHex'].dereference()
return hex(int(val))