def build(self, obj):
"""
Build an object in memory.
"""
stream = BytesIO()
self.build_stream(obj, stream)
return stream.getvalue()
def _build(self, obj, stream, context):
size = self._sizeof(context)
stream2 = BytesIO()
self.subcon._build(obj, stream2, context)
data = self.encoder(stream2.getvalue())
assert len(data) == size
_write_stream(stream, self._sizeof(context), data)
def build(self, obj):
"""
Build an object in memory.
"""
stream = BytesIO()
self.build_stream(obj, stream)
return stream.getvalue()
def _build(self, obj, stream, context):
size = self._sizeof(context)
stream2 = BytesIO()
self.subcon._build(obj, stream2, context)
data = self.encoder(stream2.getvalue())
assert len(data) == size
_write_stream(stream, self._sizeof(context), data)
def parse(self, data):
"""
Parse an in-memory buffer.
Strings, buffers, memoryviews, and other complete buffers can be
parsed with this method.
"""
return self.parse_stream(BytesIO(data))
def _build(self, obj, stream, context):
if self.include_name:
name, obj = obj
for sc in self.subcons:
if sc.name == name:
sc._build(obj, stream, context)
return
else:
for sc in self.subcons:
stream2 = BytesIO()
context2 = context.__copy__()
try:
sc._build(obj, stream2, context2)
except Exception:
pass
else:
context.__update__(context2)
stream.write(stream2.getvalue())
return
raise SelectError("no subconstruct matched", obj)
def _build(self, obj, stream, context):
if self.include_name:
name, obj = obj
for sc in self.subcons:
if sc.name == name:
sc._build(obj, stream, context)
return
else:
for sc in self.subcons:
stream2 = BytesIO()
context2 = context.__copy__()
try:
sc._build(obj, stream2, context2)
except Exception:
pass
else:
context.__update__(context2)
stream.write(stream2.getvalue())
return
raise SelectError("no subconstruct matched", obj)
def _parse(self, stream, context):
data = _read_stream(stream, self._sizeof(context))
stream2 = BytesIO(self.decoder(data))
return self.subcon._parse(stream2, context)
def _build(self, obj, stream, context):
inner_stream = BytesIO()
self.subcon._build(obj, inner_stream, context)
data = inner_stream.getvalue()
self.length_field._build(len(data), stream, context)
stream.write(data)