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[gdb] Escape unprintable bytes in SmallString and StringRef

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llvm-svn: 335561
This commit is contained in:
Fangrui Song 2018-06-26 00:41:49 +00:00
parent 7299fa0841
commit 3bab5f9eff
1 changed files with 4 additions and 8 deletions
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12
utils/gdb-scripts/prettyprinters.py
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@ -11,6 +11,8 @@ class Iterator:
def children(self):
return self
def escape_bytes(val, l):
return '"' + val.string(encoding='Latin-1', length=l).encode('unicode_escape').decode() + '"'
class SmallStringPrinter:
"""Print an llvm::SmallString object."""
@ -21,10 +23,7 @@ class SmallStringPrinter:
def to_string(self):
begin = self.val['BeginX']
end = self.val['EndX']
return begin.cast(gdb.lookup_type("char").pointer()).string(length = end - begin)
def display_hint (self):
return 'string'
return escape_bytes(begin.cast(gdb.lookup_type('char').pointer()), end - begin)
class StringRefPrinter:
"""Print an llvm::StringRef object."""
@ -33,10 +32,7 @@ class StringRefPrinter:
self.val = val
def to_string(self):
return self.val['Data'].string(encoding='Latin-1', length=self.val['Length'])
def display_hint (self):
return 'string'
return escape_bytes(self.val['Data'], self.val['Length'])
class SmallVectorPrinter:
"""Print an llvm::SmallVector object."""