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Merge pull request #2043 from ethereum/clarify-offset-encoding 

clarify offsets serialization
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Diederik Loerakker 2020-09-09 22:58:06 +02:00 committed by GitHub
parent 88cdc5bc80 6c6f180e0e
commit 5a7f4ed392
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ssz/simple-serialize.md
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@ -165,7 +165,7 @@ variable_lengths = [len(part) for part in variable_parts]
assert sum(fixed_lengths + variable_lengths) < 2**(BYTES_PER_LENGTH_OFFSET * BITS_PER_BYTE) assert sum(fixed_lengths + variable_lengths) < 2**(BYTES_PER_LENGTH_OFFSET * BITS_PER_BYTE)
# Interleave offsets of variable-size parts with fixed-size parts # Interleave offsets of variable-size parts with fixed-size parts
variable_offsets = [serialize(sum(fixed_lengths + variable_lengths[:i])) for i in range(len(value))] variable_offsets = [serialize(uint32(sum(fixed_lengths + variable_lengths[:i]))) for i in range(len(value))]
fixed_parts = [part if part != None else variable_offsets[i] for i, part in enumerate(fixed_parts)] fixed_parts = [part if part != None else variable_offsets[i] for i, part in enumerate(fixed_parts)]
# Return the concatenation of the fixed-size parts (offsets interleaved) with the variable-size parts # Return the concatenation of the fixed-size parts (offsets interleaved) with the variable-size parts