adamc@1200: (* Copyright (c) 2010, Adam Chlipala
adamc@1200:  * All rights reserved.
adamc@1200:  *
adamc@1200:  * Redistribution and use in source and binary forms, with or without
adamc@1200:  * modification, are permitted provided that the following conditions are met:
adamc@1200:  *
adamc@1200:  * - Redistributions of source code must retain the above copyright notice,
adamc@1200:  *   this list of conditions and the following disclaimer.
adamc@1200:  * - Redistributions in binary form must reproduce the above copyright notice,
adamc@1200:  *   this list of conditions and the following disclaimer in the documentation
adamc@1200:  *   and/or other materials provided with the distribution.
adamc@1200:  * - The names of contributors may not be used to endorse or promote products
adamc@1200:  *   derived from this software without specific prior written permission.
adamc@1200:  *
adamc@1200:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@1200:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@1200:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@1200:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@1200:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
adamc@1200:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@1200:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@1200:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@1200:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@1200:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@1200:  * POSSIBILITY OF SUCH DAMAGE.
adamc@1200:  *)
adamc@1200: 
adamc@1200: signature IFLOW = sig
adamc@1200: 
adamc@1200:     type lvar = int
adamc@1200: 
adamc@1200:     datatype exp =
adamc@1200:              Const of Prim.t
adamc@1200:            | Var of int
adamc@1200:            | Lvar of int
adamc@1200:            | Func of string * exp list
adamc@1200:            | Recd of (string * exp) list
adamc@1200:            | Proj of exp * string
adamc@1200:            | Finish
adamc@1200: 
adamc@1200:     datatype reln =
adamc@1200:              Sql of string
adamc@1200:            | Eq
adamc@1200: 
adamc@1200:     datatype prop =
adamc@1200:              True
adamc@1200:            | False
adamc@1200:            | Unknown
adamc@1200:            | And of prop * prop
adamc@1200:            | Or of prop * prop
adamc@1200:            | Reln of reln * exp list
adamc@1200:            | Select of int * lvar * lvar * prop * exp
adamc@1200: 
adamc@1200:     exception Summaries of (string * exp * prop * (exp * prop) list) list
adamc@1200: 
adamc@1200:     val check : Mono.file -> unit
adamc@1200: 
adamc@1200: end