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29 lines
818 B
29 lines
818 B
8 years ago
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(*
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* Copyright (c) 2017 - 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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open! IStd
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module F = Format
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module L = Logging
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(** a map from a formal to its positional index *)
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type t
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(** create a formal map for the given procdesc *)
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val make : Procdesc.t -> t
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(** the empty formal map *)
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val empty : t
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(** return true if the given base var is a formal according to the given formal map *)
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val is_formal : AccessPath.base -> t -> bool
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(** return the index for the given base var if it is a formal, or None if it is not *)
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val get_formal_index : AccessPath.base -> t -> int option
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