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42 lines
1.1 KiB
42 lines
1.1 KiB
9 years ago
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(*
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* Copyright (c) 2016 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*)
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(** single abstraction for all the kinds of variables in SIL *)
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type var =
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| ProgramVar of Pvar.t
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| LogicalVar of Ident.t
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type t = var
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let var_compare v1 v2 = match v1, v2 with
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| ProgramVar pv1, ProgramVar pv2 -> Pvar.compare pv1 pv2
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| LogicalVar sv1, LogicalVar sv2 -> Ident.compare sv1 sv2
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| ProgramVar _, _ -> 1
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| LogicalVar _, _ -> -1
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let var_equal v1 v2 =
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var_compare v1 v2 = 0
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let pp_var fmt = function
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| ProgramVar pv -> (Pvar.pp pe_text) fmt pv
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| LogicalVar id -> (Ident.pp pe_text) fmt id
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module Map = PrettyPrintable.MakePPMap(struct
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type t = var
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let compare = var_compare
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let pp_key = pp_var
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end)
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module Set = PrettyPrintable.MakePPSet(struct
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type t = var
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let compare = var_compare
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let pp_element = pp_var
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end)
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