Attachment 43843 Details for Bug 34745 – Work in progress prettyprinting hooks for (String*)

Work in progress prettyprinting hooks for (String*)

libreoffice.py (text/plain), 1.20 KB, created by Dave Malcolm on 2011-02-25 17:13:41 UTC

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Creator: Dave Malcolm

Created: 2011-02-25 17:13:41 UTC

Size: 1.20 KB

patch

obsolete

>import gdb
>
>class StringPrinter(object):
>    def __init__(self, val):
>        # "val" is a gdb.Value representing a (String *) in the inferior
>        # process
>        self.val = val 
>        
>    def to_string(self):
>        if 0 == long(self.val):
>            return 'NULL'
>        mpData = self.val['mpData']
>        length = int(mpData['mnLen'])
>        
>        # Safety limit: don't send gdb into a long loop if it encounters corrupt data:
>        length = min(length, 1024)
>        # print repr(length)
>        maStr = mpData['maStr'] # microoptimization
>        # print maStr
>
>        # FIXME: this assumes ASCII
>        result = ''.join([chr(int(maStr[i]))
>                          for i in xrange(length)])
>        return "String(%r)" % result
>    
>
>def pretty_printer_lookup(gdbval):
>    # Only for types that are "String *"
>    type = gdbval.type.unqualified()
>    if type.code == gdb.TYPE_CODE_PTR:
>        type = type.target().unqualified()
>        t = str(type)
>        if t in ("String"):
>            return StringPrinter(gdbval)
>
>def register (obj):
>    if obj == None:
>        obj = gdb
>
>    # Wire up the pretty-printer
>    obj.pretty_printers.append(pretty_printer_lookup)
>
>register (gdb.current_objfile ())
>
>
>

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Attachments on bug 34745: 43843 | 43844 | 44461

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