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from construct import *
d = Struct(
"count" / Int32ul,
"items" / Array(this.count, Struct(
"num1" / Int8ul,
"num2" / Int24ul,
"flags" / BitStruct(
"bool1" / Flag,
"num4" / BitsInteger(3),
Padding(4),
),
"fixedarray1" / Array(3, Int8ul),
"name1" / CString("utf8"),
"name2" / PascalString(Int8ul, "utf8"),
)),
)
data = d.build(dict(count=1000, items=[dict(num1=0, num2=0, flags=dict(bool1=True, num4=0), fixedarray1=[0,0,0], name1=u"...", name2=u"...") for i in range(1000)]))
with open("blob","wb") as f:
f.write(data)
# from timeit import timeit
# d.parse(data)
# parsetime = timeit(lambda: d.parse(data), number=1000)/1000
# print("Timeit measurements:")
# print("parsing: {:.10f} sec/call".format(parsetime))
d = d.compile()
print(d.benchmark(data))
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