view src/core_print.sml @ 1739:c414850f206f

Add support for -boot flag, which allows in-tree execution of Ur/Web The boot flag rewrites most hardcoded paths to point to the build directory, and also forces static compilation. This is convenient for developing Ur/Web, or if you cannot 'sudo make install' Ur/Web. The following changes were made: * Header files were moved to include/urweb instead of include; this lets FFI users point their C_INCLUDE_PATH at this directory at write <urweb/urweb.h>. For internal Ur/Web executables, we simply pass -I$PATH/include/urweb as normal. * Differentiate between LIB and SRCLIB; SRCLIB is Ur and JavaScript source files, while LIB is compiled products from libtool. For in-tree compilation these live in different places. * No longer reference Config for paths; instead use Settings; these settings can be changed dynamically by Compiler.enableBoot () (TODO: add a disableBoot function.) * config.h is now generated directly in include/urweb/config.h, for consistency's sake (especially since it gets installed along with the rest of the headers!) * All of the autotools build products got updated. * The linkStatic field in protocols now only contains the name of the build product, and not the absolute path. Future users have to be careful not to reference the Settings files to early, lest they get an old version (this was the source of two bugs during development of this patch.)
author Edward Z. Yang <ezyang@mit.edu>
date Wed, 02 May 2012 17:17:57 -0400
parents 0577be31a435
children e15234fbb163
line wrap: on
line source
(* Copyright (c) 2008-2011, 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 core Ur/Web *)

structure CorePrint :> CORE_PRINT = struct

open Print.PD
open Print

open Core

structure E = CoreEnv

val debug = ref false

fun p_kind' par env (k, _) =
    case k of
        KType => string "Type"
      | KArrow (k1, k2) => parenIf par (box [p_kind' true env k1,
                                             space,
                                             string "->",
                                             space,
                                             p_kind env k2])
      | KName => string "Name"
      | KRecord k => box [string "{", p_kind env k, string "}"]
      | KUnit => string "Unit"
      | KTuple ks => box [string "(",
                          p_list_sep (box [space, string "*", space]) (p_kind env) ks,
                          string ")"]

      | KRel n => ((if !debug then
                         string (E.lookupKRel env n ^ "_" ^ Int.toString n)
                     else
                         string (E.lookupKRel env n))
                    handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
      | KFun (x, k) => box [string x,
                            space,
                            string "-->",
                            space,
                            p_kind (E.pushKRel env x) k]

and p_kind env = p_kind' false env

fun p_con' par env (c, _) =
    case c of
        TFun (t1, t2) => parenIf par (box [p_con' true env t1,
                                           space,
                                           string "->",
                                           space,
                                           p_con env t2])
      | TCFun (x, k, c) => parenIf par (box [string x,
                                             space,
                                             string "::",
                                             space,
                                             p_kind env k,
                                             space,
                                             string "->",
                                             space,
                                             p_con (E.pushCRel env x k) c])
      | TRecord (CRecord (_, xcs), _) => box [string "{",
                                              p_list (fn (x, c) =>
                                                         box [p_name env x,
                                                              space,
                                                              string ":",
                                                              space,
                                                              p_con env c]) xcs,
                                              string "}"]
      | TRecord c => box [string "$",
                          p_con' true env c]

      | CRel n =>
        ((if !debug then
              string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
          else
              string (#1 (E.lookupCRel env n)))
         handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
      | CNamed n =>
        ((if !debug then
              string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
          else
              string (#1 (E.lookupCNamed env n)))
        handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n))
      | CFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]

      | CApp (c1, c2) => parenIf par (box [p_con env c1,
                                           space,
                                           p_con' true env c2])
      | CAbs (x, k, c) => parenIf par (box [string "fn",
                                            space,
                                            string x,
                                            space,
                                            string "::",
                                            space,
                                            p_kind env k,
                                            space,
                                            string "=>",
                                            space,
                                            p_con (E.pushCRel env x k) c])

      | CName s => box [string "#", string s]

      | CRecord (k, xcs) =>
        if !debug then
            parenIf par (box [string "[",
                              p_list (fn (x, c) =>
                                         box [p_con env x,
                                              space,
                                              string "=",
                                              space,
                                              p_con env c]) xcs,
                              string "]::",
                              p_kind env k])
        else
            parenIf par (box [string "[",
                              p_list (fn (x, c) =>
                                         box [p_con env x,
                                              space,
                                              string "=",
                                              space,
                                              p_con env c]) xcs,
                              string "]"])
      | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
                                              space,
                                              string "++",
                                              space,
                                              p_con env c2])
      | CMap _ => string "map"
      | CUnit => string "()"

      | CTuple cs => box [string "(",
                          p_list (p_con env) cs,
                          string ")"]
      | CProj (c, n) => box [p_con env c,
                             string ".",
                             string (Int.toString n)]

      | CKAbs (x, c) => box [string x,
                             space,
                             string "==>",
                             space,
                             p_con (E.pushKRel env x) c]
      | CKApp (c, k) => box [p_con env c,
                             string "[[",
                             p_kind env k,
                             string "]]"]
      | TKFun (x, c) => box [string x,
                             space,
                             string "-->",
                             space,
                             p_con (E.pushKRel env x) c]
        
and p_con env = p_con' false env

and p_name env (all as (c, _)) =
    case c of
        CName s => string s
      | _ => p_con env all

fun p_enamed env n =
    (if !debug then
        string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
     else
         string (#1 (E.lookupENamed env n)))
    handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)

fun p_con_named env n =
    (if !debug then
        string (#1 (E.lookupConstructor env n) ^ "__" ^ Int.toString n)
     else
         string (#1 (E.lookupConstructor env n)))
    handle E.UnboundNamed _ => string ("CONSTRUCTOR_" ^ Int.toString n)

fun p_patCon env pc =
    case pc of
        PConVar n => p_con_named env n
      | PConFfi {mod = m, con, arg, params, ...} =>
        if !debug then
            box [string "FFIC[",
                 case arg of
                     NONE => box []
                   | SOME t =>
                     let
                         val k = (KType, ErrorMsg.dummySpan)
                         val env' = foldl (fn (x, env) => E.pushCRel env x k) env params
                     in
                         p_con env' t
                     end,
                 string "](",
                 string m,
                 string ".",
                 string con,
                 string ")"]
        else
            box [string "FFIC(",
                 string m,
                 string ".",
                 string con,
                 string ")"]

fun p_pat' par env (p, _) =
    case p of
        PWild => string "_"
      | PVar (s, _) => string s
      | PPrim p => Prim.p_t p
      | PCon (_, n, _, NONE) => p_patCon env n
      | PCon (_, n, _, SOME p) => parenIf par (box [p_patCon env n,
                                                    space,
                                                    p_pat' true env p])
      | PRecord xps =>
        box [string "{",
             p_list_sep (box [string ",", space]) (fn (x, p, t) =>
                                                      box [string x,
                                                           space,
                                                           string "=",
                                                           space,
                                                           p_pat env p,
                                                           if !debug then
                                                               box [space,
                                                                    string ":",
                                                                    space,
                                                                    p_con env t]
                                                           else
                                                               box []]) xps,
             string "}"]

and p_pat x = p_pat' false x

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)))
         handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
      | ENamed n => p_enamed env n
      | ECon (_, pc, ts, NONE) => box [string "[",
                                       p_patCon env pc,
                                       p_list_sep (box []) (fn t => box [space, string "[", p_con env t, string "]"]) ts,
                                       string "]"]
      | ECon (_, pc, ts, SOME e) => box [string "[",
                                        p_patCon env pc,
                                        space,
                                        p_exp' true env e,
                                        p_list_sep (box []) (fn t => box [space, string "[", p_con env t, string "]"]) ts,
                                        string "]"]
      | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
      | EFfiApp (m, x, es) => box [string "FFI(",
                                   string m,
                                   string ".",
                                   string x,
                                   string "(",
                                   p_list (p_exp env o #1) es,
                                   string "))"]
      | EApp (e1, e2) => parenIf par (box [p_exp' true env e1,
                                           space,
                                           p_exp' true env e2])
      | EAbs (x, t, _, e) => parenIf par (box [string "(fn",
                                               space,
                                               string x,
                                               space,
                                               string ":",
                                               space,
                                               p_con env t,
                                               space,
                                               string "=>",
                                               space,
                                               p_exp (E.pushERel env x t) e,
                                               string ")"])
      | ECApp (e, c) => parenIf par (box [p_exp env e,
                                          space,
                                          string "[",
                                          p_con env c,
                                          string "]"])
      | ECAbs (x, k, e) => parenIf par (box [string "fn",
                                             space,
                                             string x,
                                             space,
                                             string "::",
                                             space,
                                             p_kind env k,
                                             space,
                                             string "=>",
                                             space,
                                             p_exp (E.pushCRel env x k) e])

      | ERecord xes => box [string "{",
                            p_list (fn (x, e, _) =>
                                       box [p_name env x,
                                            space,
                                            string "=",
                                            space,
                                            p_exp env e]) xes,
                            string "}"]
      | EField (e, c, {field, rest}) =>
        if !debug then
            box [p_exp' true env e,
                 string ".",
                 p_con' true env c,
                 space,
                 string "[",
                 p_con env field,
                 space,
                 string " in ",
                 space,
                 p_con env rest,
                 string "]"]
        else
            box [p_exp' true env e,
                 string ".",
                 p_con' true env c]
      | EConcat (e1, c1, e2, c2) =>
        parenIf par (if !debug then
                         box [p_exp' true env e1,
                              space,
                              string ":",
                              space,
                              p_con env c1,
                              space,
                              string "++",
                              space,
                              p_exp' true env e2,
                              space,
                              string ":",
                              space,
                              p_con env c2]
                     else
                         box [p_exp' true env e1,
                              space,
                              string "with",
                              space,
                              p_exp' true env e2])
      | ECut (e, c, {field, rest}) =>
        parenIf par (if !debug then
                         box [p_exp' true env e,
                              space,
                              string "--",
                              space,
                              p_con' true env c,
                              space,
                              string "[",
                              p_con env field,
                              space,
                              string " in ",
                              space,
                              p_con env rest,
                              string "]"]
                     else
                         box [p_exp' true env e,
                              space,
                              string "--",
                              space,
                              p_con' true env c])
      | ECutMulti (e, c, {rest}) =>
        parenIf par (if !debug then
                         box [p_exp' true env e,
                              space,
                              string "---",
                              space,
                              p_con' true env c,
                              space,
                              string "[",
                              p_con env rest,
                              string "]"]
                     else
                         box [p_exp' true env e,
                              space,
                              string "---",
                              space,
                              p_con' true env c])

      | ECase (e, pes, {disc, result}) =>
        parenIf par (box [string "case",
                          space,
                          p_exp env e,
                          space,
                          if !debug then
                              box [string "in",
                                   space,
                                   p_con env disc,
                                   space,
                                   string "return",
                                   space,
                                   p_con env result,
                                   space]
                          else
                              box [],
                          string "of",
                          space,
                          p_list_sep (box [space, string "|", space])
                                     (fn (p, e) => box [p_pat env p,
                                                        space,
                                                        string "=>",
                                                        space,
                                                        p_exp (E.patBinds env p) e]) pes])

      | EWrite e => box [string "write(",
                         p_exp env e,
                         string ")"]

      | EClosure (n, es) => box [string "CLOSURE(",
                                 p_enamed env n,
                                 p_list_sep (string "") (fn e => box [string ", ",
                                                                      p_exp env e]) es,
                                 string ")"]

      | ELet (x, t, e1, e2) => box [string "let",
                                    space,
                                    string x,
                                    space,
                                    string ":",
                                    space,
                                    p_con env t,
                                    space,
                                    string "=",
                                    space,
                                    p_exp env e1,
                                    space,
                                    string "in",
                                    newline,
                                    p_exp (E.pushERel env x t) e2]

      | EServerCall (n, es, _) => box [string "Server(",
                                       p_enamed env n,
                                       string ",",
                                       space,
                                       p_list (p_exp env) es,
                                       string ")"]

      | EKAbs (x, e) => box [string x,
                             space,
                             string "==>",
                             space,
                             p_exp (E.pushKRel env x) e]
      | EKApp (e, k) => box [p_exp env e,
                             string "[[",
                             p_kind env k,
                             string "]]"]

and p_exp env = p_exp' false env

fun p_named x n =
    if !debug then
        box [string x,
             string "__",
             string (Int.toString n)]
    else
        string x        

fun p_vali env (x, n, t, e, s) =
    let
        val xp = p_named x n
    in
        box [xp,
             space,
             string "as",
             space,
             string s,
             space,
             string ":",
             space,
             p_con env t,
             space,
             string "=",
             space,
             p_exp env e]
    end

fun p_datatype env (x, n, xs, cons) =
    let
        val k = (KType, ErrorMsg.dummySpan)
        val env = E.pushCNamed env x n (KType, ErrorMsg.dummySpan) NONE
        val env = foldl (fn (x, env) => E.pushCRel env x k) env xs

        val xp = if !debug then
                     string (x ^ "__" ^ Int.toString n)
                 else
                     string x
    in
        box [xp,
             p_list_sep (box []) (fn x => box [space, string x]) xs,
             space,
             string "=",
             space,
             p_list_sep (box [space, string "|", space])
                        (fn (x, n, NONE) => if !debug then (string (x ^ "__" ^ Int.toString n))
                                            else string x
                          | (x, n, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
                                                   else string x, space, string "of", space, p_con env t])
                        cons]
    end

fun p_decl env (dAll as (d, _) : decl) =
    case d of
        DCon (x, n, k, c) =>
        let
            val xp = if !debug then
                         box [string x,
                              string "__",
                              string (Int.toString n)]
                     else
                         string x
        in
            box [string "con",
                 space,
                 xp,
                 space,
                 string "::",
                 space,
                 p_kind env k,
                 space,
                 string "=",
                 space,
                 p_con env c]
        end
      | DDatatype x => box [string "datatype",
                            space,
                            p_list_sep (box [space, string "and", space]) (p_datatype (E.declBinds env dAll)) x]
      | DVal vi => box [string "val",
                        space,
                        p_vali env vi]
      | DValRec vis =>
        let
            val env = E.declBinds env dAll
        in
            box [string "val",
                 space,
                 string "rec",
                 space,
                 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
        end
      | DExport (ek, n, _) => box [string "export",
                                   space,
                                   Export.p_export_kind ek,
                                   space,
                                   p_enamed env n,
                                   space,
                                   string "as",
                                   space,
                                   (p_con env (#2 (E.lookupENamed env n))
                                    handle E.UnboundNamed _ => string "UNBOUND")]
      | DTable (x, n, c, s, pe, _, ce, _) => box [string "table",
                                                  space,
                                                  p_named x n,
                                                  space,
                                                  string "as",
                                                  space,
                                                  string s,
                                                  space,
                                                  string ":",
                                                  space,
                                                  p_con env c,
                                                  space,
                                                  string "keys",
                                                  space,
                                                  p_exp env pe,
                                                  space,
                                                  string "constraints",
                                                  space,
                                                  p_exp (E.declBinds env dAll) ce]
      | DSequence (x, n, s) => box [string "sequence",
                                    space,
                                    p_named x n,
                                    space,
                                    string "as",
                                    space,
                                    string s]
      | DView (x, n, s, e, _) => box [string "view",
                                      space,
                                      p_named x n,
                                      space,
                                      string "as",
                                      space,
                                      p_exp env e]
      | DDatabase s => box [string "database",
                            space,
                            string s]
      | DCookie (x, n, c, s) => box [string "cookie",
                                     space,
                                     p_named x n,
                                     space,
                                     string "as",
                                     space,
                                     string s,
                                     space,
                                     string ":",
                                     space,
                                     p_con env c]
      | DStyle (x, n, s) => box [string "style",
                                 space,
                                 p_named x n,
                                 space,
                                 string "as",
                                 space,
                                 string s]
      | DTask (e1, e2) => box [string "task",
                               space,
                               p_exp env e1,
                               space,
                               string "=",
                               space,
                               p_exp env e2]
      | DPolicy e1 => box [string "policy",
                           space,
                           p_exp env e1]
      | DOnError _ => string "ONERROR"

fun p_file env file =
    let
        val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
                                             (p_decl env d,
                                              E.declBinds env d))
                             env file
    in
        p_list_sep newline (fn x => x) pds
    end

end