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https://github.com/google/flatbuffers.git
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65f8703572
* Flatbuffers Python Object API Implement the logic to generate the Python object API that can unpack the data from a buf class into an object class, and pack the data of an object class to a buf class. * Fix the build issues Remove unused parameters and replace auto in the for-loop statement with std::string to make it compatible with VS2010. * Fix the build issues. * Add support for Array type Added logic to handle Array type in Python Object API. Updated the generated code accordingly. * Fix the old style casting from int to char * Fixed another conversion from int to char * Fixed the import for typing Importing typing may cause errors when a machine do not have the moduel typing installed. This PR fixes the issue by guarding "import typing" with the "try/except" statement. * Fix issue of iterating the vector of import list * Update the generated examples using generate_code.sh * Fix the import order for typing The import list was stored in unordered_set, so that each generated codes may have different import order. Therefore, it failed in the consistency test where two generated copies need to have exactly the same apperance. * Optimize unpack using numpy Use numpy to unpack vector whenever it is possible to improve unpack performance. Also, added codegen command for Python specificly in generate_code.sh, because --no-includes cannot be turn on for Python. * Fix the import order * Update generate_code.bat for windows accordingly * Replace error message with pass Avoid printing error message for every Python2 users about typing. Replace it with pass.
81 lines
2.3 KiB
Python
81 lines
2.3 KiB
Python
# automatically generated by the FlatBuffers compiler, do not modify
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# namespace: Example
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import flatbuffers
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from flatbuffers.compat import import_numpy
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np = import_numpy()
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class ArrayTable(object):
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__slots__ = ['_tab']
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@classmethod
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def GetRootAsArrayTable(cls, buf, offset):
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n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
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x = ArrayTable()
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x.Init(buf, n + offset)
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return x
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@classmethod
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def ArrayTableBufferHasIdentifier(cls, buf, offset, size_prefixed=False):
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return flatbuffers.util.BufferHasIdentifier(buf, offset, b"\x41\x52\x52\x54", size_prefixed=size_prefixed)
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# ArrayTable
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def Init(self, buf, pos):
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self._tab = flatbuffers.table.Table(buf, pos)
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# ArrayTable
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def A(self):
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o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
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if o != 0:
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x = o + self._tab.Pos
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from MyGame.Example.ArrayStruct import ArrayStruct
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obj = ArrayStruct()
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obj.Init(self._tab.Bytes, x)
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return obj
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return None
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def ArrayTableStart(builder): builder.StartObject(1)
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def ArrayTableAddA(builder, a): builder.PrependStructSlot(0, flatbuffers.number_types.UOffsetTFlags.py_type(a), 0)
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def ArrayTableEnd(builder): return builder.EndObject()
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import MyGame.Example.ArrayStruct
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try:
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from typing import Optional
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except:
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pass
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class ArrayTableT(object):
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# ArrayTableT
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def __init__(self):
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self.a = None # type: Optional[MyGame.Example.ArrayStruct.ArrayStructT]
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@classmethod
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def InitFromBuf(cls, buf, pos):
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arrayTable = ArrayTable()
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arrayTable.Init(buf, pos)
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return cls.InitFromObj(arrayTable)
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@classmethod
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def InitFromObj(cls, arrayTable):
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x = ArrayTableT()
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x._UnPack(arrayTable)
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return x
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# ArrayTableT
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def _UnPack(self, arrayTable):
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if arrayTable is None:
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return
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if arrayTable.A() is not None:
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self.a = MyGame.Example.ArrayStruct.ArrayStructT.InitFromObj(arrayTable.A())
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# ArrayTableT
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def Pack(self, builder):
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ArrayTableStart(builder)
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if self.a is not None:
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a = self.a.Pack(builder)
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ArrayTableAddA(builder, a)
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arrayTable = ArrayTableEnd(builder)
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return arrayTable
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