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72be9d6be7
This adds a 'summary' mode to Value.format_string and to gdb.print_options. For the former, it lets Python code format values using this mode. For the latter, it lets a printer potentially detect if it is being called in a backtrace with 'set print frame-arguments' set to 'scalars'. I considered adding a new mode here to let a pretty-printer see whether it was being called in a 'backtrace' context at all, but I'm not sure if this is really desirable.
59 lines
1.6 KiB
Python
59 lines
1.6 KiB
Python
# Copyright (C) 2008-2022 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is part of the GDB testsuite. It tests python pretty
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# printers.
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import gdb
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saved_options = {}
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class PointPrinter(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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global saved_options
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saved_options = gdb.print_options()
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if saved_options["summary"]:
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return "No Data"
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return "Pretty Point (%s, %s)" % (self.val["x"], self.val["y"])
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def test_lookup_function(val):
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"Look-up and return a pretty-printer that can print val."
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# Get the type.
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type = val.type
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# If it points to a reference, get the reference.
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if type.code == gdb.TYPE_CODE_REF:
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type = type.target()
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# Get the unqualified type, stripped of typedefs.
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type = type.unqualified().strip_typedefs()
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# Get the type name.
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typename = type.tag
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if typename == "point":
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return PointPrinter(val)
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return None
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gdb.pretty_printers.append(test_lookup_function)
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