64 lines
1.8 KiB
OCaml
64 lines
1.8 KiB
OCaml
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(**************************************************************************)
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(* *)
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(* Copyright (c) 2014 - 2018. *)
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(* Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
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(* *)
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(* All rights reserved. No warranty, explicit or implicit, provided. *)
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(* *)
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(**************************************************************************)
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let bool = 1
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let int8 = 1
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let uint8 = 1
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let char = 1
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let int16 = 2
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let uint16 = 2
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let uint30 = 4
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let uint32 = 4
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let uint64 = 8
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let int31 = 4
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let int32 = 4
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let int64 = 8
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let float = 8
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type tag_size = [ `Uint8 | `Uint16 ]
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let tag_size = function
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| `Uint8 -> uint8
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| `Uint16 -> uint16
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type signed_integer = [ `Int31 | `Int16 | `Int8 ]
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type unsigned_integer = [ `Uint30 | `Uint16 | `Uint8 ]
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type integer = [ signed_integer | unsigned_integer ]
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let signed_range_to_size min max : [> signed_integer ] =
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if min >= ~-128 && max <= 127
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then `Int8
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else if min >= ~-32_768 && max <= 32_767
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then `Int16
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else `Int31
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(* max should be centered at zero *)
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let unsigned_range_to_size max : [> unsigned_integer ] =
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if max <= 255
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then `Uint8
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else if max <= 65535
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then `Uint16
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else `Uint30
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let integer_to_size = function
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| `Int31 -> int31
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| `Int16 -> int16
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| `Int8 -> int8
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| `Uint30 -> uint30
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| `Uint16 -> uint16
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| `Uint8 -> uint8
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let range_to_size ~minimum ~maximum : integer =
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if minimum < 0
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then signed_range_to_size minimum maximum
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else unsigned_range_to_size (maximum - minimum)
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let enum_size arr =
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unsigned_range_to_size (Array.length arr)
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