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(* Copyright (c) 2008, Adam Chlipala
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - The names of contributors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*)
(* Pretty-printing monomorphic Laconic/Web *)
structure MonoPrint :> MONO_PRINT = struct
open Print.PD
open Print
open Mono
structure E = MonoEnv
val debug = ref false
fun p_typ' par env (t, _) =
case t of
TFun (t1, t2) => parenIf par (box [p_typ' true env t1,
space,
string "->",
space,
p_typ env t2])
| TRecord xcs => box [string "{",
p_list (fn (x, t) =>
box [string x,
space,
string ":",
space,
p_typ env t]) xcs,
string "}"]
| TNamed n =>
if !debug then
string (#1 (E.lookupTNamed env n) ^ "__" ^ Int.toString n)
else
string (#1 (E.lookupTNamed env n))
and p_typ env = p_typ' false env
fun p_exp' par env (e, _) =
case e of
EPrim p => Prim.p_t p
| ERel n =>
if !debug then
string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
else
string (#1 (E.lookupERel env n))
| ENamed n =>
if !debug then
string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
else
string (#1 (E.lookupENamed env n))
| EApp (e1, e2) => parenIf par (box [p_exp env e1,
space,
p_exp' true env e2])
| EAbs (x, t, _, e) => parenIf par (box [string "fn",
space,
string x,
space,
string ":",
space,
p_typ env t,
space,
string "=>",
space,
p_exp (E.pushERel env x t) e])
| ERecord xes => box [string "{",
p_list (fn (x, e) =>
box [string x,
space,
string "=",
space,
p_exp env e]) xes,
string "}"]
| EField (e, x) =>
box [p_exp' true env e,
string ".",
string x]
and p_exp env = p_exp' false env
fun p_decl env ((d, _) : decl) =
case d of
DVal (x, n, t, e) =>
let
val xp = if !debug then
box [string x,
string "__",
string (Int.toString n)]
else
string x
in
box [string "val",
space,
xp,
space,
string ":",
space,
p_typ env t,
space,
string "=",
space,
p_exp env e]
end
fun p_file env file =
let
val (_, pds) = ListUtil.mapfoldl (fn (d, env) =>
(E.declBinds env d,
p_decl env d))
env file
in
p_list_sep newline (fn x => x) pds
end
end
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