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(*
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* Copyright (c) 2009 - 2013 Monoidics ltd.
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* Copyright (c) 2013 - 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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(** The Smallfoot Intermediate Language: Decompiled Expressions *)
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open! IStd
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module F = Format
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(** expression representing the result of decompilation *)
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type t =
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| Darray of t * t
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| Dbinop of Binop.t * t * t
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| Dconst of Const.t
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| Dsizeof of Typ.t * t option * Subtype.t
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| Dderef of t
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| Dfcall of t * t list * Location.t * CallFlags.t
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| Darrow of t * Typ.Fieldname.t
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| Ddot of t * Typ.Fieldname.t
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| Dpvar of Pvar.t
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| Dpvaraddr of Pvar.t
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| Dunop of Unop.t * t
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| Dunknown
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| Dretcall of t * t list * Location.t * CallFlags.t
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(** Value paths: identify an occurrence of a value in a symbolic heap
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each expression represents a path, with Dpvar being the simplest one *)
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type vpath = t option
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val to_string : t -> string
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(** convert to a string *)
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val pp_vpath : Pp.env -> F.formatter -> vpath -> unit
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(** Pretty print a value path *)
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val has_tmp_var : t -> bool
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(** return true if [dexp] contains a temporary pvar *)
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