2020-04-22 04:21:39 +00:00
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import nimcrypto/[keccak, hash], stew/bitops2
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2020-04-21 11:04:18 +00:00
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type
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TrieNodeType* = enum
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BranchNodeType
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2020-04-22 04:21:39 +00:00
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Branch17NodeType
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2020-04-21 11:04:18 +00:00
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ExtensionNodeType
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AccountNodeType
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HashNodeType
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AccountType* = enum
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SimpleAccountType
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ExtendedAccountType
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2020-04-22 04:21:39 +00:00
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proc setBranchMaskBit*(x: var uint, i: int) {.inline.} =
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assert(i >= 0 and i < 17)
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x = x or (1 shl i).uint
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func branchMaskBitIsSet*(x: uint, i: int): bool {.inline.} =
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assert(i >= 0 and i < 17)
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result = ((x shr i.uint) and 1'u) == 1'u
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func constructBranchMask*(b1, b2: byte): uint {.inline.} =
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result = uint(b1) shl 8 or uint(b2)
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if countOnes(result) < 2:
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debugEcho "MASK: ", result
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assert(countOnes(result) > 1)
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