48 lines
2.5 KiB
OCaml
48 lines
2.5 KiB
OCaml
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(*****************************************************************************)
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(* *)
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(* Open Source License *)
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(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
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(* *)
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(* Permission is hereby granted, free of charge, to any person obtaining a *)
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(* copy of this software and associated documentation files (the "Software"),*)
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(* to deal in the Software without restriction, including without limitation *)
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(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
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(* and/or sell copies of the Software, and to permit persons to whom the *)
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(* Software is furnished to do so, subject to the following conditions: *)
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(* *)
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(* The above copyright notice and this permission notice shall be included *)
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(* in all copies or substantial portions of the Software. *)
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(* *)
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(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
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(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
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(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
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(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
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(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
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(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
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(* DEALINGS IN THE SOFTWARE. *)
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(* *)
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(*****************************************************************************)
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(** The shell's notion of a level: an integer indicating the number of blocks
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since genesis: genesis is 0, all other blocks have increasing levels from
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there. *)
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type t
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type raw_level = t
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val encoding: raw_level Data_encoding.t
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val rpc_arg: raw_level RPC_arg.arg
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val pp: Format.formatter -> raw_level -> unit
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include Compare.S with type t := raw_level
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val to_int32: raw_level -> int32
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val of_int32_exn: int32 -> raw_level
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val of_int32: int32 -> raw_level tzresult
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val diff: raw_level -> raw_level -> int32
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val root: raw_level
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val succ: raw_level -> raw_level
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val pred: raw_level -> raw_level option
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module Index : Storage_description.INDEX with type t = raw_level
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