72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
#
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# Copyright 2015-2017 Michele "King_DuckZ" Santullo
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import gdb.printing
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#NOTE:
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#This pretty-printer has been written for vectorwrapper + std::array.
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#You will have to customize it if your wrapped type is different.
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class VectorWrapperStdArrPrinter(object):
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"Print values in a VectorWrapper<std::array>"
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class _iterator(object):
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def __init__(self, start, size):
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self.item = start
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self.pos = 0
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self.size = size
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def __iter__(self):
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return self
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def __next__(self):
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if self.pos == self.size:
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raise StopIteration
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elt = self.item.dereference()
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self.item = self.item + 1
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self.pos = self.pos + 1
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return str(elt)
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def __init__(self, val):
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self.val = val
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self.dimensions = int(val.type.template_argument(1))
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def to_string(self):
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#get the scalar[n] value
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stdarray_elems = self.val['m_wrapped']['_M_elems']
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#get the actual scalar type
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elem_type = self.val['m_wrapped'].type.template_argument(0)
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#cast scalar[n] to scalar*
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ptr = stdarray_elems.address.cast(elem_type.pointer())
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#iterate over the values in scalar* and str() them
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retval = "vec" + str(self.dimensions) + "<" + \
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", ".join(
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str(itm) for itm in self._iterator(ptr, self.dimensions)
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) + ">"
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return retval
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def display_hint(self):
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return 'string'
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def build_pretty_printer():
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pp = gdb.printing.RegexpCollectionPrettyPrinter(__name__)
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#add your namespace before 'vwr' if you're using a custom one
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pp.add_printer('vwr', '^curry::vwr::Vec<std::array.+$', VectorWrapperStdArrPrinter)
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return pp
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gdb.printing.register_pretty_printer(
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gdb.current_objfile(),
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build_pretty_printer()
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)
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