adamc@643: (* Copyright (c) 2008-2009, Adam Chlipala
adamc@29:  * All rights reserved.
adamc@29:  *
adamc@29:  * Redistribution and use in source and binary forms, with or without
adamc@29:  * modification, are permitted provided that the following conditions are met:
adamc@29:  *
adamc@29:  * - Redistributions of source code must retain the above copyright notice,
adamc@29:  *   this list of conditions and the following disclaimer.
adamc@29:  * - Redistributions in binary form must reproduce the above copyright notice,
adamc@29:  *   this list of conditions and the following disclaimer in the documentation
adamc@29:  *   and/or other materials provided with the distribution.
adamc@29:  * - The names of contributors may not be used to endorse or promote products
adamc@29:  *   derived from this software without specific prior written permission.
adamc@29:  *
adamc@29:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@29:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@29:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@29:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@29:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
adamc@29:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@29:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@29:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@29:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@29:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@29:  * POSSIBILITY OF SUCH DAMAGE.
adamc@29:  *)
adamc@29: 
adamc@29: (* Pretty-printing C jr. *)
adamc@29: 
adamc@29: structure CjrPrint :> CJR_PRINT = struct
adamc@29: 
adamc@29: open Print.PD
adamc@29: open Print
adamc@29: 
adamc@29: open Cjr
adamc@29: 
adamc@269: val dummyt = (TRecord 0, ErrorMsg.dummySpan)
adamc@269: 
adamc@29: structure E = CjrEnv
adamc@29: structure EM = ErrorMsg
adamc@29: 
adamc@144: structure SK = struct
adamc@144: type ord_key = string
adamc@144: val compare = String.compare
adamc@144: end
adamc@144: 
adamc@144: structure SS = BinarySetFn(SK)
adamc@144: structure SM = BinaryMapFn(SK)
adamc@144: structure IS = IntBinarySet
adamc@144: 
adamc@144: structure CM = BinaryMapFn(struct
adamc@144:                            type ord_key = char
adamc@144:                            val compare = Char.compare
adamc@144:                            end)
adamc@144: 
adamc@29: val debug = ref false
adamc@29: 
adamc@196: val dummyTyp = (TDatatype (Enum, 0, ref []), ErrorMsg.dummySpan)
adamc@29: 
adamc@316: val ident = String.translate (fn #"'" => "PRIME"
adamc@316:                                | ch => str ch)
adamc@316: 
adamc@316: val p_ident = string o ident
adamc@316: 
adamc@463: fun isUnboxable (t : typ) =
adamc@463:     case #1 t of
adamc@463:         TDatatype (Default, _, _) => true
adamc@463:       | TFfi ("Basis", "string") => true
adamc@463:       | _ => false
adamc@463: 
adamc@29: fun p_typ' par env (t, loc) =
adamc@29:     case t of
adamc@476:         TFun (t1, t2) => (EM.errorAt loc "Function type remains";
adamc@476:                           string "<FUNCTION>")
adamc@29:       | TRecord i => box [string "struct",
adamc@29:                           space,
adamc@311:                           string "__uws_",
adamc@29:                           string (Int.toString i)]
adamc@188:       | TDatatype (Enum, n, _) =>
adamc@188:         (box [string "enum",
adamc@188:               space,
adamc@311:               string ("__uwe_" ^ #1 (E.lookupDatatype env n) ^ "_" ^ Int.toString n)]
adamc@311:          handle CjrEnv.UnboundNamed _ => string ("__uwd_UNBOUND__" ^ Int.toString n))
adamc@198:       | TDatatype (Option, n, xncs) =>
adamc@198:         (case ListUtil.search #3 (!xncs) of
adamc@198:              NONE => raise Fail "CjrPrint: TDatatype marked Option has no constructor with an argument"
adamc@198:            | SOME t =>
adamc@198:              case #1 t of
adamc@198:                  TDatatype _ => p_typ' par env t
adamc@199:                | TFfi ("Basis", "string") => p_typ' par env t
adamc@198:                | _ => box [p_typ' par env t,
adamc@198:                            string "*"])
adamc@188:       | TDatatype (Default, n, _) =>
adamc@165:         (box [string "struct",
adamc@165:               space,
adamc@311:               string ("__uwd_" ^ #1 (E.lookupDatatype env n) ^ "_" ^ Int.toString n ^ "*")]
adamc@311:          handle CjrEnv.UnboundNamed _ => string ("__uwd_UNBOUND__" ^ Int.toString n))
adamc@316:       | TFfi (m, x) => box [string "uw_", p_ident m, string "_", p_ident x]
adamc@288:       | TOption t =>
adamc@463:         if isUnboxable t then
adamc@463:             p_typ' par env t
adamc@463:         else
adamc@463:             box [p_typ' par env t,
adamc@463:                  string "*"]
adamc@29: 
adamc@29: and p_typ env = p_typ' false env
adamc@29: 
adamc@316: fun p_rel env n = string ("__uwr_" ^ ident (#1 (E.lookupERel env n)) ^ "_" ^ Int.toString (E.countERels env - n - 1))
adamc@311:     handle CjrEnv.UnboundRel _ => string ("__uwr_UNBOUND_" ^ Int.toString (E.countERels env - n - 1))
adamc@29: 
adamc@109: fun p_enamed env n =
adamc@316:     string ("__uwn_" ^ ident (#1 (E.lookupENamed env n)) ^ "_" ^ Int.toString n)
adamc@311:     handle CjrEnv.UnboundNamed _ => string ("__uwn_UNBOUND_" ^ Int.toString n)
adamc@109: 
adamc@182: fun p_con_named env n =
adamc@316:     string ("__uwc_" ^ ident (#1 (E.lookupConstructor env n)) ^ "_" ^ Int.toString n)
adamc@311:     handle CjrEnv.UnboundNamed _ => string ("__uwc_UNBOUND_" ^ Int.toString n)
adamc@182: 
adamc@182: fun p_pat_preamble env (p, _) =
adamc@182:     case p of
adamc@182:         PWild => (box [],
adamc@182:                   env)
adamc@182:       | PVar (x, t) => (box [p_typ env t,
adamc@182:                              space,
adamc@311:                              string "__uwr_",
adamc@316:                              p_ident x,
adamc@182:                              string "_",
adamc@182:                              string (Int.toString (E.countERels env)),
adamc@182:                              string ";",
adamc@182:                              newline],
adamc@196:                         E.pushERel env x t)
adamc@182:       | PPrim _ => (box [], env)
adamc@188:       | PCon (_, _, NONE) => (box [], env)
adamc@188:       | PCon (_, _, SOME p) => p_pat_preamble env p
adamc@182:       | PRecord xps =>
adamc@182:         foldl (fn ((_, p, _), (pp, env)) =>
adamc@182:                   let
adamc@182:                       val (pp', env) = p_pat_preamble env p
adamc@182:                   in
adamc@182:                       (box [pp', pp], env)
adamc@182:                   end) (box [], env) xps
adamc@288:       | PNone _ => (box [], env)
adamc@288:       | PSome (_, p) => p_pat_preamble env p
adamc@182: 
adamc@182: fun p_patCon env pc =
adamc@182:     case pc of
adamc@182:         PConVar n => p_con_named env n
adamc@316:       | PConFfi {mod = m, con, ...} => string ("uw_" ^ ident m ^ "_" ^ ident con)
adamc@182: 
adamc@182: fun p_pat (env, exit, depth) (p, _) =
adamc@182:     case p of
adamc@182:         PWild =>
adamc@182:         (box [], env)
adamc@182:       | PVar (x, t) =>
adamc@311:         (box [string "__uwr_",
adamc@316:               p_ident x,
adamc@182:               string "_",
adamc@182:               string (Int.toString (E.countERels env)),
adamc@182:               space,
adamc@182:               string "=",
adamc@182:               space,
adamc@182:               string "disc",
adamc@182:               string (Int.toString depth),
adamc@182:               string ";"],
adamc@182:          E.pushERel env x t)
adamc@182:       | PPrim (Prim.Int n) =>
adamc@182:         (box [string "if",
adamc@182:               space,
adamc@182:               string "(disc",
adamc@182:               string (Int.toString depth),
adamc@182:               space,
adamc@182:               string "!=",
adamc@182:               space,
adamc@276:               Prim.p_t_GCC (Prim.Int n),
adamc@182:               string ")",
adamc@182:               space,
adamc@182:               exit],
adamc@182:          env)
adamc@182:       | PPrim (Prim.String s) =>
adamc@182:         (box [string "if",
adamc@182:               space,
adamc@182:               string "(strcmp(disc",
adamc@182:               string (Int.toString depth),
adamc@182:               string ",",
adamc@182:               space,
adamc@276:               Prim.p_t_GCC (Prim.String s),
adamc@182:               string "))",
adamc@182:               space,
adamc@182:               exit],
adamc@182:          env)
adamc@182:       | PPrim _ => raise Fail "CjrPrint: Disallowed PPrim primitive"
adamc@182: 
adamc@188:       | PCon (dk, pc, po) =>
adamc@182:         let
adamc@182:             val (p, env) =
adamc@182:                 case po of
adamc@182:                     NONE => (box [], env)
adamc@182:                   | SOME p =>
adamc@182:                     let
adamc@182:                         val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182: 
adamc@182:                         val (x, to) = case pc of
adamc@182:                                           PConVar n =>
adamc@182:                                           let
adamc@182:                                               val (x, to, _) = E.lookupConstructor env n
adamc@182:                                           in
adamc@316:                                               ("uw_" ^ ident x, to)
adamc@182:                                           end
adamc@188:                                         | PConFfi {mod = m, con, arg, ...} =>
adamc@316:                                           ("uw_" ^ ident m ^ "_" ^ ident con, arg)
adamc@182: 
adamc@182:                         val t = case to of
adamc@182:                                     NONE => raise Fail "CjrPrint: Constructor mismatch"
adamc@182:                                   | SOME t => t
adamc@182:                     in
adamc@182:                         (box [string "{",
adamc@182:                               newline,
adamc@182:                               p_typ env t,
adamc@182:                               space,
adamc@182:                               string "disc",
adamc@182:                               string (Int.toString (depth + 1)),
adamc@182:                               space,
adamc@182:                               string "=",
adamc@182:                               space,
adamc@198:                               case dk of
adamc@198:                                   Enum => raise Fail "CjrPrint: Looking at argument of no-argument constructor"
adamc@198:                                 | Default => box [string "disc",
adamc@198:                                                   string (Int.toString depth),
adamc@198:                                                   string "->data.",
adamc@198:                                                   string x]
adamc@198:                                 | Option =>
adamc@463:                                   if isUnboxable t then
adamc@463:                                       box [string "disc",
adamc@463:                                            string (Int.toString depth)]
adamc@463:                                   else
adamc@463:                                       box [string "*disc",
adamc@463:                                            string (Int.toString depth)],
adamc@182:                               string ";",
adamc@182:                               newline,
adamc@182:                               p,
adamc@182:                               newline,
adamc@182:                               string "}"],
adamc@182:                          env)
adamc@182:                     end
adamc@182:         in
adamc@182:             (box [string "if",
adamc@182:                   space,
adamc@182:                   string "(disc",
adamc@182:                   string (Int.toString depth),
adamc@198:                   case (dk, po) of
adamc@198:                       (Enum, _) => box [space,
adamc@198:                                         string "!=",
adamc@198:                                         space,
adamc@198:                                         p_patCon env pc]
adamc@198:                     | (Default, _) => box [string "->tag",
adamc@198:                                            space,
adamc@198:                                            string "!=",
adamc@198:                                            space,
adamc@198:                                            p_patCon env pc]
adamc@198:                     | (Option, NONE) => box [space,
adamc@198:                                              string "!=",
adamc@198:                                              space,
adamc@198:                                              string "NULL"]
adamc@198:                     | (Option, SOME _) => box [space,
adamc@198:                                                string "==",
adamc@198:                                                space,
adamc@198:                                                string "NULL"],
adamc@182:                   string ")",
adamc@182:                   space,
adamc@182:                   exit,
adamc@182:                   newline,
adamc@182:                   p],
adamc@182:              env)
adamc@182:         end
adamc@182: 
adamc@182:       | PRecord xps =>
adamc@182:         let
adamc@182:             val (xps, env) =
adamc@182:                 ListUtil.foldlMap (fn ((x, p, t), env) =>
adamc@182:                                       let
adamc@182:                                           val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182: 
adamc@182:                                           val p = box [string "{",
adamc@182:                                                        newline,
adamc@182:                                                        p_typ env t,
adamc@182:                                                        space,
adamc@182:                                                        string "disc",
adamc@182:                                                        string (Int.toString (depth + 1)),
adamc@182:                                                        space,
adamc@182:                                                        string "=",
adamc@182:                                                        space,
adamc@182:                                                        string "disc",
adamc@182:                                                        string (Int.toString depth),
adamc@311:                                                        string ".__uwf_",
adamc@316:                                                        p_ident x,
adamc@182:                                                        string ";",
adamc@182:                                                        newline,
adamc@182:                                                        p,
adamc@182:                                                        newline,
adamc@182:                                                        string "}"]
adamc@182:                                       in
adamc@182:                                           (p, env)
adamc@182:                                       end) env xps
adamc@182:         in
adamc@182:             (p_list_sep newline (fn x => x) xps,
adamc@182:              env)
adamc@182:         end
adamc@182: 
adamc@288:       | PNone t =>
adamc@288:         (box [string "if",
adamc@288:               space,
adamc@288:               string "(disc",
adamc@288:               string (Int.toString depth),
adamc@288:               space,
adamc@288:               string "!=",
adamc@288:               space,
adamc@288:               string "NULL)",
adamc@288:               space,
adamc@288:               exit,
adamc@288:               newline],
adamc@288:          env)
adamc@288: 
adamc@288:       | PSome (t, p) =>
adamc@288:         let
adamc@288:             val (p, env) =
adamc@288:                 let
adamc@288:                     val (p, env) = p_pat (env, exit, depth + 1) p
adamc@288:                 in
adamc@288:                     (box [string "{",
adamc@288:                           newline,
adamc@288:                           p_typ env t,
adamc@288:                           space,
adamc@288:                           string "disc",
adamc@288:                           string (Int.toString (depth + 1)),
adamc@288:                           space,
adamc@288:                           string "=",
adamc@288:                           space,
adamc@463:                           if isUnboxable t then
adamc@463:                               box [string "disc",
adamc@463:                                    string (Int.toString depth)]
adamc@463:                           else
adamc@463:                               box [string "*disc",
adamc@463:                                    string (Int.toString depth)],
adamc@288:                           string ";",
adamc@288:                           newline,
adamc@288:                           p,
adamc@288:                           newline,
adamc@288:                           string "}"],
adamc@288:                      env)
adamc@288:                 end
adamc@288:         in
adamc@288:             (box [string "if",
adamc@288:                   space,
adamc@288:                   string "(disc",
adamc@288:                   string (Int.toString depth),
adamc@288:                   space,
adamc@288:                   string "==",
adamc@288:                   space,
adamc@288:                   string "NULL)",
adamc@288:                   space,
adamc@288:                   exit,
adamc@288:                   newline,
adamc@288:                   p],
adamc@288:              env)
adamc@288:         end
adamc@288: 
adamc@182: local
adamc@182:     val count = ref 0
adamc@182: in
adamc@182: fun newGoto () =
adamc@182:     let
adamc@182:         val r = !count
adamc@182:     in
adamc@182:         count := r + 1;
adamc@182:         string ("L" ^ Int.toString r)
adamc@182:     end
adamc@182: end
adamc@182: 
adamc@185: fun patConInfo env pc =
adamc@185:     case pc of
adamc@185:         PConVar n =>
adamc@185:         let
adamc@185:             val (x, _, dn) = E.lookupConstructor env n
adamc@185:             val (dx, _) = E.lookupDatatype env dn
adamc@185:         in
adamc@316:             ("__uwd_" ^ ident dx ^ "_" ^ Int.toString dn,
adamc@316:              "__uwc_" ^ ident x ^ "_" ^ Int.toString n,
adamc@316:              "uw_" ^ ident x)
adamc@185:         end
adamc@186:       | PConFfi {mod = m, datatyp, con, ...} =>
adamc@316:         ("uw_" ^ ident m ^ "_" ^ ident datatyp,
adamc@316:          "uw_" ^ ident m ^ "_" ^ ident con,
adamc@316:          "uw_" ^ ident con)
adamc@185: 
adamc@324: fun p_unsql wontLeakStrings env (tAll as (t, loc)) e =
adamc@278:     case t of
adamc@311:         TFfi ("Basis", "int") => box [string "uw_Basis_stringToInt_error(ctx, ", e, string ")"]
adamc@311:       | TFfi ("Basis", "float") => box [string "uw_Basis_stringToFloat_error(ctx, ", e, string ")"]
adamc@324:       | TFfi ("Basis", "string") =>
adamc@324:         if wontLeakStrings then
adamc@324:             e
adamc@324:         else
adamc@324:             box [string "uw_Basis_strdup(ctx, ", e, string ")"]
adamc@311:       | TFfi ("Basis", "bool") => box [string "uw_Basis_stringToBool_error(ctx, ", e, string ")"]
adamc@438:       | TFfi ("Basis", "time") => box [string "uw_Basis_stringToTime_error(ctx, ", e, string ")"]
adamc@678:       | TFfi ("Basis", "channel") => box [string "uw_Basis_stringToChannel_error(ctx, ", e, string ")"]
adamc@467: 
adamc@278:       | _ => (ErrorMsg.errorAt loc "Don't know how to unmarshal type from SQL";
adamc@278:               Print.eprefaces' [("Type", p_typ env tAll)];
adamc@278:               string "ERROR")
adamc@278: 
adamc@467: fun p_getcol wontLeakStrings env (tAll as (t, loc)) i =
adamc@467:     case t of
adamc@467:         TOption t =>
adamc@467:         box [string "(PQgetisnull (res, i, ",
adamc@467:              string (Int.toString i),
adamc@467:              string ") ? NULL : ",
adamc@467:              case t of
adamc@467:                  (TFfi ("Basis", "string"), _) => p_getcol wontLeakStrings env t i
adamc@467:                | _ => box [string "({",
adamc@467:                            newline,
adamc@467:                            p_typ env t,
adamc@467:                            space,
adamc@467:                            string "*tmp = uw_malloc(ctx, sizeof(",
adamc@467:                            p_typ env t,
adamc@467:                            string "));",
adamc@467:                            newline,
adamc@467:                            string "*tmp = ",
adamc@467:                            p_getcol wontLeakStrings env t i,
adamc@467:                            string ";",
adamc@467:                            newline,
adamc@467:                            string "tmp;",
adamc@467:                            newline,
adamc@467:                            string "})"],
adamc@467:              string ")"]
adamc@467:              
adamc@467:       | _ =>
adamc@467:         p_unsql wontLeakStrings env tAll
adamc@467:                 (box [string "PQgetvalue(res, i, ",
adamc@467:                       string (Int.toString i),
adamc@467:                       string ")"])
adamc@467: 
adamc@282: datatype sql_type =
adamc@282:          Int
adamc@282:        | Float
adamc@282:        | String
adamc@282:        | Bool
adamc@439:        | Time
adamc@678:        | Channel
adamc@467:        | Nullable of sql_type
adamc@282: 
adamc@467: fun p_sql_type' t =
adamc@467:     case t of
adamc@467:         Int => "uw_Basis_int"
adamc@467:       | Float => "uw_Basis_float"
adamc@467:       | String => "uw_Basis_string"
adamc@467:       | Bool => "uw_Basis_bool"
adamc@467:       | Time => "uw_Basis_time"
adamc@678:       | Channel => "uw_Basis_channel"
adamc@467:       | Nullable String => "uw_Basis_string"
adamc@467:       | Nullable t => p_sql_type' t ^ "*"
adamc@467: 
adamc@467: fun p_sql_type t = string (p_sql_type' t)
adamc@282: 
adamc@282: fun getPargs (e, _) =
adamc@282:     case e of
adamc@282:         EPrim (Prim.String _) => []
adamc@282:       | EFfiApp ("Basis", "strcat", [e1, e2]) => getPargs e1 @ getPargs e2
adamc@282: 
adamc@282:       | EFfiApp ("Basis", "sqlifyInt", [e]) => [(e, Int)]
adamc@282:       | EFfiApp ("Basis", "sqlifyFloat", [e]) => [(e, Float)]
adamc@282:       | EFfiApp ("Basis", "sqlifyString", [e]) => [(e, String)]
adamc@282:       | EFfiApp ("Basis", "sqlifyBool", [e]) => [(e, Bool)]
adamc@439:       | EFfiApp ("Basis", "sqlifyTime", [e]) => [(e, Time)]
adamc@678:       | EFfiApp ("Basis", "sqlifyChannel", [e]) => [(e, Channel)]
adamc@468: 
adamc@678:       | ECase (e,
adamc@678:                [((PNone _, _),
adamc@678:                  (EPrim (Prim.String "NULL"), _)),
adamc@678:                 ((PSome (_, (PVar _, _)), _),
adamc@678:                  (EFfiApp (m, x, [(ERel 0, _)]), _))],
adamc@678:                _) => map (fn (x, y) => (x, Nullable y)) (getPargs (EFfiApp (m, x, [e]), #2 e))
adamc@468: 
adamc@491:       | ECase (e,
adamc@491:                [((PCon (_, PConFfi {mod = "Basis", con = "True", ...}, _), _),
adamc@491:                  (EPrim (Prim.String "TRUE"), _)),
adamc@491:                 ((PCon (_, PConFfi {mod = "Basis", con = "False", ...}, _), _),
adamc@491:                  (EPrim (Prim.String "FALSE"), _))],
adamc@491:                _) => [(e, Bool)]
adamc@282: 
adamc@282:       | _ => raise Fail "CjrPrint: getPargs"
adamc@282: 
adamc@282: fun p_ensql t e =
adamc@282:     case t of
adamc@311:         Int => box [string "uw_Basis_attrifyInt(ctx, ", e, string ")"]
adamc@311:       | Float => box [string "uw_Basis_attrifyFloat(ctx, ", e, string ")"]
adamc@282:       | String => e
adamc@295:       | Bool => box [string "(", e, string " ? \"TRUE\" : \"FALSE\")"]
adamc@439:       | Time => box [string "uw_Basis_sqlifyTime(ctx, ", e, string ")"]
adamc@678:       | Channel => box [string "uw_Basis_attrifyChannel(ctx, ", e, string ")"]
adamc@467:       | Nullable String => e
adamc@467:       | Nullable t => box [string "(",
adamc@467:                            e,
adamc@467:                            string " == NULL ? NULL : ",
adamc@467:                            p_ensql t (box [string "*", e]),
adamc@467:                            string ")"]
adamc@282: 
adamc@324: fun notLeaky env allowHeapAllocated =
adamc@324:     let
adamc@638:         fun nl ok (t, _) =
adamc@324:             case t of
adamc@324:                 TFun _ => false
adamc@324:               | TRecord n =>
adamc@324:                 let
adamc@324:                     val xts = E.lookupStruct env n
adamc@324:                 in
adamc@638:                     List.all (fn (_, t) => nl ok t) xts
adamc@324:                 end
adamc@638:               | TDatatype (dk, n, ref cons) =>
adamc@638:                 IS.member (ok, n)
adamc@638:                 orelse
adamc@638:                 ((allowHeapAllocated orelse dk = Enum)
adamc@638:                  andalso
adamc@638:                  let
adamc@638:                      val ok' = IS.add (ok, n)
adamc@638:                  in
adamc@638:                      List.all (fn (_, _, to) => case to of
adamc@638:                                                     NONE => true
adamc@638:                                                   | SOME t => nl ok' t) cons
adamc@638:                  end)
adamc@324:               | TFfi ("Basis", "string") => false
adamc@324:               | TFfi _ => true
adamc@638:               | TOption t => allowHeapAllocated andalso nl ok t
adamc@324:     in
adamc@638:         nl IS.empty
adamc@324:     end
adamc@324: 
adamc@463: fun capitalize s =
adamc@463:     if s = "" then
adamc@463:         ""
adamc@463:     else
adamc@463:         str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@463: 
adamc@463: fun unurlify env (t, loc) =
adamc@463:     let
adamc@463:         fun unurlify' rf t =
adamc@463:             case t of
adamc@463:                 TFfi ("Basis", "unit") => string ("uw_unit_v")
adamc@463:               | TFfi (m, t) => string ("uw_" ^ ident m ^ "_unurlify" ^ capitalize t ^ "(ctx, &request)")
adamc@463: 
adamc@463:               | TRecord 0 => string "uw_unit_v"
adamc@463:               | TRecord i =>
adamc@463:                 let
adamc@463:                     val xts = E.lookupStruct env i
adamc@463:                 in
adamc@463:                     box [string "({",
adamc@463:                          newline,
adamc@463:                          box (map (fn (x, t) =>
adamc@463:                                       box [p_typ env t,
adamc@463:                                            space,
adamc@463:                                            string "uwr_",
adamc@463:                                            string x,
adamc@463:                                            space,
adamc@463:                                            string "=",
adamc@463:                                            space,
adamc@463:                                            unurlify' rf (#1 t),
adamc@463:                                            string ";",
adamc@463:                                            newline]) xts),
adamc@463:                          string "struct",
adamc@463:                          space,
adamc@463:                          string "__uws_",
adamc@463:                          string (Int.toString i),
adamc@463:                          space,
adamc@463:                          string "tmp",
adamc@463:                          space,
adamc@463:                          string "=",
adamc@463:                          space,
adamc@463:                          string "{",
adamc@463:                          space,
adamc@463:                          p_list_sep (box [string ",", space]) (fn (x, _) => box [string "uwr_",
adamc@463:                                                                                  string x]) xts,
adamc@463:                          space,
adamc@463:                          string "};",
adamc@463:                          newline,
adamc@463:                          string "tmp;",
adamc@463:                          newline,
adamc@463:                          string "})"]
adamc@463:                 end
adamc@463: 
adamc@463:               | TDatatype (Enum, i, _) =>
adamc@463:                 let
adamc@463:                     val (x, xncs) = E.lookupDatatype env i
adamc@463: 
adamc@463:                     fun doEm xncs =
adamc@463:                         case xncs of
adamc@463:                             [] => string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype "
adamc@463:                                           ^ x ^ "\"), (enum __uwe_"
adamc@463:                                           ^ x ^ "_" ^ Int.toString i ^ ")0)")
adamc@463:                           | (x', n, to) :: rest =>
adamc@463:                             box [string "((!strncmp(request, \"",
adamc@463:                                  string x',
adamc@463:                                  string "\", ",
adamc@463:                                  string (Int.toString (size x')),
adamc@463:                                  string ") && (request[",
adamc@463:                                  string (Int.toString (size x')),
adamc@463:                                  string "] == 0 || request[",
adamc@463:                                  string (Int.toString (size x')),
adamc@463:                                  string ("] == '/')) ? __uwc_" ^ ident x' ^ "_" ^ Int.toString n),
adamc@463:                                  space,
adamc@463:                                  string ":",
adamc@463:                                  space,
adamc@463:                                  doEm rest,
adamc@463:                                  string ")"]
adamc@463:                 in
adamc@463:                     doEm xncs
adamc@463:                 end
adamc@463: 
adamc@463:               | TDatatype (Option, i, xncs) =>
adamc@463:                 if IS.member (rf, i) then
adamc@463:                     box [string "unurlify_",
adamc@463:                          string (Int.toString i),
adamc@463:                          string "()"]
adamc@463:                 else
adamc@463:                     let
adamc@463:                         val (x, _) = E.lookupDatatype env i
adamc@463: 
adamc@463:                         val (no_arg, has_arg, t) =
adamc@463:                             case !xncs of
adamc@463:                                 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@463:                                 (no_arg, has_arg, t)
adamc@463:                               | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@463:                                 (no_arg, has_arg, t)
adamc@463:                               | _ => raise Fail "CjrPrint: unfooify misclassified Option datatype"
adamc@463: 
adamc@463:                         val rf = IS.add (rf, i)
adamc@463:                     in
adamc@463:                         box [string "({",
adamc@463:                              space,
adamc@463:                              p_typ env t,
adamc@463:                              space,
adamc@463:                              string "*unurlify_",
adamc@463:                              string (Int.toString i),
adamc@463:                              string "(void) {",
adamc@463:                              newline,
adamc@463:                              box [string "return (request[0] == '/' ? ++request : request,",
adamc@463:                                   newline,
adamc@463:                                   string "((!strncmp(request, \"",
adamc@463:                                   string no_arg,
adamc@463:                                   string "\", ",
adamc@463:                                   string (Int.toString (size no_arg)),
adamc@463:                                   string ") && (request[",
adamc@463:                                   string (Int.toString (size no_arg)),
adamc@463:                                   string "] == 0 || request[",
adamc@463:                                   string (Int.toString (size no_arg)),
adamc@463:                                   string "] == '/')) ? (request",
adamc@463:                                   space,
adamc@463:                                   string "+=",
adamc@463:                                   space,
adamc@463:                                   string (Int.toString (size no_arg)),
adamc@463:                                   string ", NULL) : ((!strncmp(request, \"",
adamc@463:                                   string has_arg,
adamc@463:                                   string "\", ",
adamc@463:                                   string (Int.toString (size has_arg)),
adamc@463:                                   string ") && (request[",
adamc@463:                                   string (Int.toString (size has_arg)),
adamc@463:                                   string "] == 0 || request[",
adamc@463:                                   string (Int.toString (size has_arg)),
adamc@463:                                   string "] == '/')) ? (request",
adamc@463:                                   space,
adamc@463:                                   string "+=",
adamc@463:                                   space,
adamc@463:                                   string (Int.toString (size has_arg)),
adamc@463:                                   string ", (request[0] == '/' ? ++request : NULL), ",
adamc@463:                                   newline,
adamc@463:                                   
adamc@463:                                   if isUnboxable  t then
adamc@463:                                       unurlify' rf (#1 t)
adamc@463:                                   else
adamc@463:                                       box [string "({",
adamc@463:                                            newline,
adamc@463:                                            p_typ env t,
adamc@463:                                            space,
adamc@463:                                            string "*tmp",
adamc@463:                                            space,
adamc@463:                                            string "=",
adamc@463:                                            space,
adamc@463:                                            string "uw_malloc(ctx, sizeof(",
adamc@463:                                            p_typ env t,
adamc@463:                                            string "));",
adamc@463:                                            newline,
adamc@463:                                            string "*tmp",
adamc@463:                                            space,
adamc@463:                                            string "=",
adamc@463:                                            space,
adamc@463:                                            unurlify' rf (#1 t),
adamc@463:                                            string ";",
adamc@463:                                            newline,
adamc@463:                                            string "tmp;",
adamc@463:                                            newline,
adamc@463:                                            string "})"],
adamc@463:                                   string ")",
adamc@463:                                   newline,
adamc@463:                                   string ":",
adamc@463:                                   space,
adamc@463:                                   string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x
adamc@463:                                           ^ "\"), NULL))));"),
adamc@463:                                   newline],
adamc@463:                              string "}",
adamc@463:                              newline,
adamc@463:                              newline,
adamc@463: 
adamc@463:                              string "unurlify_",
adamc@463:                              string (Int.toString i),
adamc@463:                              string "();",
adamc@463:                              newline,
adamc@463:                              string "})"]
adamc@463:                     end
adamc@463: 
adamc@463:               | TDatatype (Default, i, _) =>
adamc@463:                 if IS.member (rf, i) then
adamc@463:                     box [string "unurlify_",
adamc@463:                          string (Int.toString i),
adamc@463:                          string "()"]
adamc@463:                 else
adamc@463:                     let
adamc@463:                         val (x, xncs) = E.lookupDatatype env i
adamc@463: 
adamc@463:                         val rf = IS.add (rf, i)
adamc@463: 
adamc@463:                         fun doEm xncs =
adamc@463:                             case xncs of
adamc@463:                                 [] => string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype "
adamc@463:                                               ^ x ^ "\"), NULL)")
adamc@463:                               | (x', n, to) :: rest =>
adamc@463:                                 box [string "((!strncmp(request, \"",
adamc@463:                                      string x',
adamc@463:                                      string "\", ",
adamc@463:                                      string (Int.toString (size x')),
adamc@463:                                      string ") && (request[",
adamc@463:                                      string (Int.toString (size x')),
adamc@463:                                      string "] == 0 || request[",
adamc@463:                                      string (Int.toString (size x')),
adamc@463:                                      string "] == '/')) ? ({",
adamc@463:                                      newline,
adamc@463:                                      string "struct",
adamc@463:                                      space,
adamc@463:                                      string ("__uwd_" ^ ident x ^ "_" ^ Int.toString i),
adamc@463:                                      space,
adamc@463:                                      string "*tmp = uw_malloc(ctx, sizeof(struct __uwd_",
adamc@463:                                      string x,
adamc@463:                                      string "_",
adamc@463:                                      string (Int.toString i),
adamc@463:                                      string "));",
adamc@463:                                      newline,
adamc@463:                                      string "tmp->tag",
adamc@463:                                      space,
adamc@463:                                      string "=",
adamc@463:                                      space,
adamc@463:                                      string ("__uwc_" ^ ident x' ^ "_" ^ Int.toString n),
adamc@463:                                      string ";",
adamc@463:                                      newline,
adamc@463:                                      string "request",
adamc@463:                                      space,
adamc@463:                                      string "+=",
adamc@463:                                      space,
adamc@463:                                      string (Int.toString (size x')),
adamc@463:                                      string ";",
adamc@463:                                      newline,
adamc@463:                                      string "if (request[0] == '/') ++request;",
adamc@463:                                      newline,
adamc@463:                                      case to of
adamc@463:                                          NONE => box []
adamc@463:                                        | SOME (t, _) => box [string "tmp->data.uw_",
adamc@463:                                                              p_ident x',
adamc@463:                                                              space,
adamc@463:                                                              string "=",
adamc@463:                                                              space,
adamc@463:                                                              unurlify' rf t,
adamc@463:                                                              string ";",
adamc@463:                                                              newline],
adamc@463:                                      string "tmp;",
adamc@463:                                      newline,
adamc@463:                                      string "})",
adamc@463:                                      space,
adamc@463:                                      string ":",
adamc@463:                                      space,
adamc@463:                                      doEm rest,
adamc@463:                                      string ")"]
adamc@463:                     in
adamc@463:                         box [string "({",
adamc@463:                              space,
adamc@463:                              p_typ env (t, ErrorMsg.dummySpan),
adamc@463:                              space,
adamc@463:                              string "unurlify_",
adamc@463:                              string (Int.toString i),
adamc@463:                              string "(void) {",
adamc@463:                              newline,
adamc@463:                              box [string "return",
adamc@463:                                   space,
adamc@463:                                   doEm xncs,
adamc@463:                                   string ";",
adamc@463:                                   newline],
adamc@463:                              string "}",
adamc@463:                              newline,
adamc@463:                              newline,
adamc@463: 
adamc@463:                              string "unurlify_",
adamc@463:                              string (Int.toString i),
adamc@463:                              string "();",
adamc@463:                              newline,
adamc@463:                              string "})"]
adamc@463:                     end
adamc@463: 
adamc@471:               | TOption t =>
adamc@471:                 box [string "(request[0] == '/' ? ++request : request, ",
adamc@471:                      string "((!strncmp(request, \"None\", 4) ",
adamc@471:                      string "&& (request[4] == 0 || request[4] == '/')) ",
adamc@471:                      string "? (request += 4, NULL) ",
adamc@471:                      string ": ((!strncmp(request, \"Some\", 4) ",
adamc@471:                      string "&& request[4] == '/') ",
adamc@471:                      string "? (request += 5, ",
adamc@471:                      if isUnboxable  t then
adamc@471:                          unurlify' rf (#1 t)
adamc@471:                      else
adamc@471:                          box [string "({",
adamc@471:                               newline,
adamc@471:                               p_typ env t,
adamc@471:                               space,
adamc@471:                               string "*tmp",
adamc@471:                               space,
adamc@471:                               string "=",
adamc@471:                               space,
adamc@471:                               string "uw_malloc(ctx, sizeof(",
adamc@471:                               p_typ env t,
adamc@471:                               string "));",
adamc@471:                               newline,
adamc@471:                               string "*tmp",
adamc@471:                               space,
adamc@471:                               string "=",
adamc@471:                               space,
adamc@471:                               unurlify' rf (#1 t),
adamc@471:                               string ";",
adamc@471:                               newline,
adamc@471:                               string "tmp;",
adamc@471:                               newline,
adamc@471:                               string "})"],
adamc@471:                      string ") :",
adamc@471:                      space,
adamc@471:                      string "(uw_error(ctx, FATAL, \"Error unurlifying option type\"), NULL))))"]
adamc@471: 
adamc@463:               | _ => (ErrorMsg.errorAt loc "Unable to choose a URL decoding function";
adamc@463:                       space)
adamc@463:     in
adamc@463:         unurlify' IS.empty t
adamc@463:     end
adamc@463: 
adamc@610: fun urlify env t =
adamc@610:     let
adamc@610:         fun urlify' rf level (t as (_, loc)) =
adamc@610:             case #1 t of
adamc@610:                 TFfi ("Basis", "unit") => box []
adamc@610:               | TFfi (m, t) => box [string ("uw_" ^ ident m ^ "_urlify" ^ capitalize t
adamc@610:                                             ^ "_w(ctx, it" ^ Int.toString level ^ ");"),
adamc@610:                                     newline]
adamc@610: 
adamc@610:               | TRecord 0 => box []
adamc@610:               | TRecord i =>
adamc@610:                 let
adamc@611:                     fun empty (t, _) =
adamc@611:                         case t of
adamc@611:                             TFfi ("Basis", "unit") => true
adamc@611:                           | TRecord 0 => true
adamc@611:                           | TRecord j =>
adamc@611:                             List.all (fn (_, t) => empty t) (E.lookupStruct env j)
adamc@611:                           | _ => false
adamc@611: 
adamc@610:                     val xts = E.lookupStruct env i
adamc@611: 
adamc@613:                     val (blocks, _) = foldl
adamc@613:                                       (fn ((x, t), (blocks, printingSinceLastSlash)) =>
adamc@613:                                           let
adamc@613:                                               val thisEmpty = empty t
adamc@613:                                           in
adamc@613:                                               if thisEmpty then
adamc@613:                                                   (blocks, printingSinceLastSlash)
adamc@613:                                               else
adamc@613:                                                   (box [string "{",
adamc@613:                                                         newline,
adamc@613:                                                         p_typ env t,
adamc@613:                                                         space,
adamc@613:                                                         string ("it" ^ Int.toString (level + 1)),
adamc@613:                                                         space,
adamc@613:                                                         string "=",
adamc@613:                                                         space,
adamc@613:                                                         string ("it" ^ Int.toString level ^ ".__uwf_" ^ x ^ ";"),
adamc@613:                                                         newline,
adamc@613:                                                         box (if printingSinceLastSlash then
adamc@613:                                                                  [string "uw_write(ctx, \"/\");",
adamc@613:                                                                   newline]
adamc@613:                                                              else
adamc@613:                                                                  []),
adamc@613:                                                         urlify' rf (level + 1) t,
adamc@613:                                                         string "}",
adamc@613:                                                         newline] :: blocks,
adamc@613:                                                    true)
adamc@613:                                           end)
adamc@613:                                       ([], false) xts
adamc@610:                 in
adamc@613:                     box (rev blocks)
adamc@610:                 end
adamc@610: 
adamc@638:               | TDatatype (Enum, i, _) =>
adamc@638:                 let
adamc@610:                     val (x, xncs) = E.lookupDatatype env i
adamc@610: 
adamc@610:                     fun doEm xncs =
adamc@610:                         case xncs of
adamc@638:                             [] => box [string ("uw_error(ctx, FATAL, \"Error urlifying datatype "
adamc@638:                                                ^ x ^ "\");"),
adamc@638:                                        newline]
adamc@610:                           | (x', n, to) :: rest =>
adamc@638:                             box [string ("if (it" ^ Int.toString level
adamc@638:                                          ^ "==__uwc_" ^ ident x' ^ "_" ^ Int.toString n ^ ") {"),
adamc@638:                                  newline,
adamc@638:                                  box [string ("uw_write(ctx, \"" ^ x' ^ "\");"),
adamc@638:                                       newline],
adamc@638:                                  string "} else {",
adamc@638:                                  newline,
adamc@638:                                  box [doEm rest,
adamc@638:                                       newline],
adamc@638:                                  string "}"]
adamc@610:                 in
adamc@610:                     doEm xncs
adamc@638:                 end
adamc@610: 
adamc@639:               | TDatatype (Option, i, xncs) =>
adamc@639:                 if IS.member (rf, i) then
adamc@639:                     box [string "urlify_",
adamc@610:                          string (Int.toString i),
adamc@639:                          string "(it",
adamc@639:                          string (Int.toString level),
adamc@639:                          string ");",
adamc@639:                          newline]
adamc@610:                 else
adamc@610:                     let
adamc@610:                         val (x, _) = E.lookupDatatype env i
adamc@610: 
adamc@610:                         val (no_arg, has_arg, t) =
adamc@610:                             case !xncs of
adamc@610:                                 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@610:                                 (no_arg, has_arg, t)
adamc@610:                               | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@610:                                 (no_arg, has_arg, t)
adamc@639:                               | _ => raise Fail "CjrPrint: urlify misclassified Option datatype"
adamc@610: 
adamc@610:                         val rf = IS.add (rf, i)
adamc@610:                     in
adamc@610:                         box [string "({",
adamc@610:                              space,
adamc@639:                              string "void",
adamc@639:                              space,
adamc@639:                              string "urlify_",
adamc@639:                              string (Int.toString i),
adamc@639:                              string "(",
adamc@610:                              p_typ env t,
adamc@610:                              space,
adamc@639:                              if isUnboxable t then
adamc@639:                                  box []
adamc@639:                              else
adamc@639:                                  string "*",
adamc@639:                              string "it0) {",
adamc@610:                              newline,
adamc@639:                              box [string "if (it0) {",
adamc@639:                                   if isUnboxable t then
adamc@639:                                       urlify' rf 0 t
adamc@610:                                   else
adamc@639:                                       box [p_typ env t,
adamc@610:                                            space,
adamc@639:                                            string "it1",
adamc@610:                                            space,
adamc@610:                                            string "=",
adamc@610:                                            space,
adamc@639:                                            string "*it0;",
adamc@610:                                            newline,
adamc@639:                                            string "uw_write(ctx, \"",
adamc@639:                                            string has_arg,
adamc@639:                                            string "/\");",
adamc@639:                                            newline,
adamc@639:                                            urlify' rf 1 t,
adamc@610:                                            string ";",
adamc@639:                                            newline],
adamc@639:                                   string "} else {",
adamc@639:                                   box [string "uw_write(ctx, \"",
adamc@639:                                        string no_arg,
adamc@639:                                        string "\");",
adamc@639:                                        newline],
adamc@639:                                   string "}",
adamc@610:                                   newline],
adamc@610:                              string "}",
adamc@610:                              newline,
adamc@610:                              newline,
adamc@610: 
adamc@639:                              string "urlify_",
adamc@610:                              string (Int.toString i),
adamc@639:                              string "(it",
adamc@639:                              string (Int.toString level),
adamc@639:                              string ");",
adamc@610:                              newline,
adamc@639:                              string "});",
adamc@639:                              newline]
adamc@639:                     end
adamc@610: 
adamc@640:               | TDatatype (Default, i, _) =>
adamc@640:                 if IS.member (rf, i) then
adamc@640:                     box [string "urlify_",
adamc@610:                          string (Int.toString i),
adamc@640:                          string "(it",
adamc@640:                          string (Int.toString level), 
adamc@640:                          string ");",
adamc@640:                          newline]
adamc@610:                 else
adamc@610:                     let
adamc@610:                         val (x, xncs) = E.lookupDatatype env i
adamc@610: 
adamc@610:                         val rf = IS.add (rf, i)
adamc@610: 
adamc@610:                         fun doEm xncs =
adamc@610:                             case xncs of
adamc@640:                                 [] => box [string ("uw_error(ctx, FATAL, \"Error urlifying datatype "
adamc@640:                                                    ^ x ^ " (%d)\", it0->data);"),
adamc@640:                                            newline]
adamc@610:                               | (x', n, to) :: rest =>
adamc@640:                                 box [string "if",
adamc@610:                                      space,
adamc@640:                                      string "(it0->tag==__uwc_",
adamc@640:                                      string (ident x'),
adamc@610:                                      string "_",
adamc@640:                                      string (Int.toString n),
adamc@640:                                      string ") {",
adamc@610:                                      newline,
adamc@610:                                      case to of
adamc@640:                                          NONE => box [string "uw_write(ctx, \"",
adamc@640:                                                       string x',
adamc@640:                                                       string "\");",
adamc@640:                                                       newline]
adamc@640:                                        | SOME t => box [string "uw_write(ctx, \"",
adamc@640:                                                         string x',
adamc@640:                                                         string "/\");",
adamc@640:                                                         newline,
adamc@640:                                                         p_typ env t,
adamc@640:                                                         space,
adamc@640:                                                         string "it1",
adamc@640:                                                         space,
adamc@640:                                                         string "=",
adamc@640:                                                         space,
adamc@640:                                                         string "it0->data.uw_",
adamc@640:                                                         string x',
adamc@640:                                                         string ";",
adamc@640:                                                         newline,
adamc@640:                                                         urlify' rf 1 t,
adamc@640:                                                         newline],
adamc@640:                                      string "} else {",
adamc@610:                                      newline,
adamc@640:                                      box [doEm rest,
adamc@640:                                           newline],
adamc@640:                                      string "}",
adamc@640:                                      newline]
adamc@610:                     in
adamc@610:                         box [string "({",
adamc@610:                              space,
adamc@640:                              string "void",
adamc@610:                              space,
adamc@640:                              string "urlify_",
adamc@610:                              string (Int.toString i),
adamc@640:                              string "(",
adamc@640:                              p_typ env t,
adamc@640:                              space,
adamc@640:                              string "it0) {",
adamc@610:                              newline,
adamc@640:                              box [doEm xncs,
adamc@610:                                   newline],
adamc@640:                              newline,
adamc@610:                              string "}",
adamc@610:                              newline,
adamc@640: 
adamc@640:                              string "urlify_",
adamc@640:                              string (Int.toString i),
adamc@640:                              string "(it",
adamc@640:                              string (Int.toString level),
adamc@640:                              string ");",
adamc@610:                              newline,
adamc@640:                              string "});",
adamc@640:                              newline]
adamc@640:                     end
adamc@610: 
adamc@641:               | TOption t =>
adamc@641:                 box [string "if (it",
adamc@641:                      string (Int.toString level),
adamc@641:                      string ") {",
adamc@641:                      if isUnboxable t then
adamc@641:                          box [string "uw_write(ctx, \"Some/\");",
adamc@641:                               newline,
adamc@641:                               urlify' rf level t]
adamc@610:                      else
adamc@641:                          box [p_typ env t,
adamc@610:                               space,
adamc@641:                               string "it",
adamc@641:                               string (Int.toString (level + 1)),
adamc@610:                               space,
adamc@610:                               string "=",
adamc@610:                               space,
adamc@641:                               string "*it",
adamc@641:                               string (Int.toString level),
adamc@610:                               string ";",
adamc@610:                               newline,
adamc@641:                               string "uw_write(ctx, \"Some/\");",
adamc@610:                               newline,
adamc@641:                               urlify' rf (level + 1) t,
adamc@641:                               string ";",
adamc@641:                               newline],
adamc@641:                      string "} else {",
adamc@641:                      box [string "uw_write(ctx, \"None\");",
adamc@641:                           newline],
adamc@641:                      string "}",
adamc@641:                      newline]
adamc@610: 
adamc@610:               | _ => (ErrorMsg.errorAt loc "Unable to choose a URL encoding function";
adamc@610:                       space)
adamc@610:     in
adamc@610:         urlify' IS.empty 0 t
adamc@610:     end
adamc@610: 
adamc@673: val timeout = ref 0
adamc@673: 
adamc@182: fun p_exp' par env (e, loc) =
adamc@29:     case e of
adamc@276:         EPrim p => Prim.p_t_GCC p
adamc@29:       | ERel n => p_rel env n
adamc@109:       | ENamed n => p_enamed env n
adamc@188:       | ECon (Enum, pc, _) => p_patCon env pc
adamc@198:       | ECon (Option, pc, NONE) => string "NULL"
adamc@198:       | ECon (Option, pc, SOME e) =>
adamc@198:         let
adamc@198:             val to = case pc of
adamc@198:                          PConVar n => #2 (E.lookupConstructor env n)
adamc@198:                        | PConFfi {arg, ...} => arg
adamc@198: 
adamc@198:             val t = case to of
adamc@198:                         NONE => raise Fail "CjrPrint: ECon argument status mismatch"
adamc@198:                       | SOME t => t
adamc@198:         in
adamc@463:             if isUnboxable t then
adamc@463:                 p_exp' par env e
adamc@463:             else
adamc@463:                 box [string "({",
adamc@463:                      newline,
adamc@463:                      p_typ env t,
adamc@463:                      space,
adamc@463:                      string "*tmp",
adamc@463:                      space,
adamc@463:                      string "=",
adamc@463:                      space,
adamc@463:                      string "uw_malloc(ctx, sizeof(",
adamc@463:                      p_typ env t,
adamc@463:                      string "));",
adamc@463:                      newline,
adamc@463:                      string "*tmp",
adamc@463:                      space,
adamc@463:                      string "=",
adamc@463:                      p_exp' par env e,
adamc@463:                      string ";",
adamc@463:                      newline,
adamc@463:                      string "tmp;",
adamc@463:                      newline,
adamc@463:                      string "})"]
adamc@198:         end
adamc@188:       | ECon (Default, pc, eo) =>
adamc@181:         let
adamc@196:             val (xd, xc, xn) = patConInfo env pc
adamc@181:         in
adamc@182:             box [string "({",
adamc@181:                  newline,
adamc@181:                  string "struct",
adamc@181:                  space,
adamc@185:                  string xd,
adamc@181:                  space,
adamc@181:                  string "*tmp",
adamc@181:                  space,
adamc@181:                  string "=",
adamc@181:                  space,
adamc@311:                  string "uw_malloc(ctx, sizeof(struct ",
adamc@185:                  string xd,
adamc@181:                  string "));",
adamc@181:                  newline,
adamc@181:                  string "tmp->tag",
adamc@181:                  space,
adamc@181:                  string "=",
adamc@181:                  space,
adamc@185:                  string xc,
adamc@181:                  string ";",
adamc@181:                  newline,
adamc@181:                  case eo of
adamc@181:                      NONE => box []
adamc@185:                    | SOME e => box [string "tmp->data.",
adamc@196:                                     string xn,
adamc@181:                                     space,
adamc@181:                                     string "=",
adamc@181:                                     space,
adamc@181:                                     p_exp env e,
adamc@181:                                     string ";",
adamc@181:                                     newline],
adamc@181:                  string "tmp;",
adamc@181:                  newline,
adamc@181:                  string "})"]          
adamc@181:         end
adamc@297:       | ENone _ => string "NULL"
adamc@290:       | ESome (t, e) =>
adamc@463:         if isUnboxable t then
adamc@463:             p_exp' par env e
adamc@463:         else
adamc@463:             box [string "({",
adamc@463:                  newline,
adamc@463:                  p_typ env t,
adamc@463:                  space,
adamc@463:                  string "*tmp",
adamc@463:                  space,
adamc@463:                  string "=",
adamc@463:                  space,
adamc@463:                  string "uw_malloc(ctx, sizeof(",
adamc@463:                  p_typ env t,
adamc@463:                  string "));",
adamc@463:                  newline,
adamc@463:                  string "*tmp",
adamc@463:                  space,
adamc@463:                  string "=",
adamc@463:                  p_exp' par env e,
adamc@463:                  string ";",
adamc@463:                  newline,
adamc@463:                  string "tmp;",
adamc@463:                  newline,
adamc@463:                  string "})"]
adamc@109: 
adamc@316:       | EFfi (m, x) => box [string "uw_", p_ident m, string "_", p_ident x]
adamc@283:       | EError (e, t) =>
adamc@283:         box [string "({",
adamc@283:              newline,
adamc@283:              p_typ env t,
adamc@283:              space,
adamc@283:              string "tmp;",
adamc@283:              newline,
adamc@311:              string "uw_error(ctx, FATAL, \"",
adamc@292:              string (ErrorMsg.spanToString loc),
adamc@292:              string ": %s\", ",
adamc@283:              p_exp env e,
adamc@283:              string ");",
adamc@283:              newline,
adamc@283:              string "tmp;",
adamc@283:              newline,
adamc@283:              string "})"]
adamc@476:       | EApp ((EError (e, (TFun (_, ran), _)), loc), _) =>
adamc@476:         p_exp env (EError (e, ran), loc)
adamc@476: 
adamc@311:       | EFfiApp (m, x, es) => box [string "uw_",
adamc@316:                                    p_ident m,
adamc@53:                                    string "_",
adamc@316:                                    p_ident x,
adamc@117:                                    string "(ctx, ",
adamc@53:                                    p_list (p_exp env) es,
adamc@53:                                    string ")"]
adamc@316:       | EApp (f, args) =>
adamc@316:         parenIf par (box [p_exp' true env f,
adamc@316:                           string "(ctx,",
adamc@316:                           space,
adamc@316:                           p_list_sep (box [string ",", space]) (p_exp env) args,
adamc@316:                           string ")"])
adamc@29: 
adamc@387:       | EUnop (s, e1) =>
adamc@387:         parenIf par (box [string s,
adamc@387:                           space,
adamc@387:                           p_exp' true env e1])
adamc@387: 
adamc@387:       | EBinop (s, e1, e2) =>
adamc@389:         if Char.isAlpha (String.sub (s, size s - 1)) then
adamc@389:             box [string s,
adamc@390:                  string "(",
adamc@389:                  p_exp env e1,
adamc@389:                  string ",",
adamc@389:                  space,
adamc@389:                  p_exp env e2,
adamc@389:                  string ")"]
adamc@389:         else
adamc@389:             parenIf par (box [p_exp' true env e1,
adamc@389:                               space,
adamc@389:                               string s,
adamc@389:                               space,
adamc@389:                               p_exp' true env e2])
adamc@387: 
adamc@29:       | ERecord (i, xes) => box [string "({",
adamc@29:                                  space,
adamc@29:                                  string "struct",
adamc@29:                                  space,
adamc@311:                                  string ("__uws_" ^ Int.toString i),
adamc@29:                                  space,
adamc@181:                                  string "tmp",
adamc@29:                                  space,
adamc@29:                                  string "=",
adamc@29:                                  space,
adamc@29:                                  string "{",
adamc@29:                                  p_list (fn (_, e) =>
adamc@29:                                             p_exp env e) xes,
adamc@29:                                  string "};",
adamc@29:                                  space,
adamc@181:                                  string "tmp;",
adamc@29:                                  space,
adamc@29:                                  string "})" ]
adamc@29:       | EField (e, x) =>
adamc@29:         box [p_exp' true env e,
adamc@311:              string ".__uwf_",
adamc@316:              p_ident x]
adamc@29: 
adamc@182:       | ECase (e, pes, {disc, result}) =>
adamc@182:         let
adamc@182:             val final = newGoto ()
adamc@182: 
adamc@182:             val body = foldl (fn ((p, e), body) =>
adamc@182:                                let
adamc@182:                                    val exit = newGoto ()
adamc@182:                                    val (pr, _) = p_pat_preamble env p
adamc@182:                                    val (p, env) = p_pat (env,
adamc@182:                                                          box [string "goto",
adamc@182:                                                               space,
adamc@182:                                                               exit,
adamc@182:                                                               string ";"],
adamc@182:                                                          0) p
adamc@182:                                in
adamc@182:                                    box [body,
adamc@182:                                         box [string "{",
adamc@182:                                              newline,
adamc@182:                                              pr,
adamc@182:                                              newline,
adamc@182:                                              p,
adamc@182:                                              newline,
adamc@182:                                              string "result",
adamc@182:                                              space,
adamc@182:                                              string "=",
adamc@182:                                              space,
adamc@182:                                              p_exp env e,
adamc@182:                                              string ";",
adamc@182:                                              newline,
adamc@182:                                              string "goto",
adamc@182:                                              space,
adamc@182:                                              final,
adamc@182:                                              string ";",
adamc@182:                                              newline,
adamc@182:                                              string "}"],
adamc@182:                                         newline,
adamc@182:                                         exit,
adamc@182:                                         string ":",
adamc@182:                                         newline]
adamc@182:                                end) (box []) pes
adamc@182:         in
adamc@182:             box [string "({",
adamc@182:                  newline,
adamc@182:                  p_typ env disc,
adamc@182:                  space,
adamc@182:                  string "disc0",
adamc@182:                  space,
adamc@182:                  string "=",
adamc@182:                  space,
adamc@182:                  p_exp env e,
adamc@182:                  string ";",
adamc@182:                  newline,
adamc@182:                  p_typ env result,
adamc@182:                  space,
adamc@182:                  string "result;",
adamc@182:                  newline,
adamc@182:                  body,
adamc@311:                  string "uw_error(ctx, FATAL, \"",
adamc@182:                  string (ErrorMsg.spanToString loc),
adamc@182:                  string ": pattern match failure\");",
adamc@182:                  newline,
adamc@182:                  final,
adamc@182:                  string ":",
adamc@182:                  space,
adamc@182:                  string "result;",
adamc@182:                  newline,
adamc@182:                  string "})"]
adamc@182:         end
adamc@181: 
adamc@311:       | EWrite e => box [string "(uw_write(ctx, ",
adamc@102:                          p_exp env e,
adamc@311:                          string "), uw_unit_v)"]
adamc@102: 
adamc@106:       | ESeq (e1, e2) => box [string "(",
adamc@106:                               p_exp env e1,
adamc@106:                               string ",",
adamc@106:                               space,
adamc@106:                               p_exp env e2,
adamc@106:                               string ")"]
adamc@269:       | ELet (x, t, e1, e2) => box [string "({",
adamc@269:                                     newline,
adamc@269:                                     p_typ env t,
adamc@269:                                     space,
adamc@311:                                     string "__uwr_",
adamc@316:                                     p_ident x,
adamc@272:                                     string "_",
adamc@272:                                     string (Int.toString (E.countERels env)),
adamc@269:                                     space,
adamc@269:                                     string "=",
adamc@269:                                     space,
adamc@269:                                     p_exp env e1,
adamc@269:                                     string ";",
adamc@269:                                     newline,
adamc@269:                                     p_exp (E.pushERel env x t) e2,
adamc@269:                                     string ";",
adamc@269:                                     newline,
adamc@269:                                     string "})"]
adamc@269: 
adamc@282:       | EQuery {exps, tables, rnum, state, query, body, initial, prepared} =>
adamc@278:         let
adamc@316:             val exps = map (fn (x, t) => ("__uwf_" ^ ident x, t)) exps
adamc@278:             val tables = ListUtil.mapConcat (fn (x, xts) =>
adamc@316:                                                 map (fn (x', t) => ("__uwf_" ^ ident x ^ ".__uwf_" ^ ident x', t)) xts)
adamc@278:                                             tables
adamc@638: 
adamc@278:             val outputs = exps @ tables
adamc@325:             val outputs = ListMergeSort.sort (fn ((s1, _), (s2, _)) => String.compare (s1, s2) = GREATER) outputs
adamc@324: 
adamc@324:             val wontLeakStrings = notLeaky env true state
adamc@324:             val wontLeakAnything = notLeaky env false state
adamc@278:         in
adamc@640:             box [if wontLeakAnything then
adamc@331:                      string "uw_begin_region(ctx), "
adamc@324:                  else
adamc@324:                      box [],
adamc@324:                  string "({",
adamc@278:                  newline,
adamc@311:                  string "PGconn *conn = uw_get_db(ctx);",
adamc@278:                  newline,
adamc@640:                  p_typ env state,
adamc@640:                  space,
adamc@640:                  string "acc",
adamc@640:                  space,
adamc@640:                  string "=",
adamc@640:                  space,
adamc@640:                  p_exp env initial,
adamc@640:                  string ";",
adamc@640:                  newline,
adamc@640:                  string "int n, i, dummy = (uw_begin_region(ctx), 0);",
adamc@640:                  newline,
adamc@640:                  
adamc@282:                  case prepared of
adamc@282:                      NONE => box [string "char *query = ",
adamc@282:                                   p_exp env query,
adamc@282:                                   string ";",
adamc@282:                                   newline]
adamc@282:                    | SOME _ =>
adamc@282:                      let
adamc@282:                          val ets = getPargs query
adamc@282:                      in
adamc@282:                          box [p_list_sepi newline
adamc@282:                                           (fn i => fn (e, t) =>
adamc@282:                                                       box [p_sql_type t,
adamc@282:                                                            space,
adamc@282:                                                            string "arg",
adamc@282:                                                            string (Int.toString (i + 1)),
adamc@282:                                                            space,
adamc@282:                                                            string "=",
adamc@282:                                                            space,
adamc@282:                                                            p_exp env e,
adamc@282:                                                            string ";"])
adamc@282:                                           ets,
adamc@282:                               newline,
adamc@282:                               newline,
adamc@282: 
adamc@282:                               string "const char *paramValues[] = { ",
adamc@282:                               p_list_sepi (box [string ",", space])
adamc@282:                               (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@282:                                                                     string (Int.toString (i + 1))]))
adamc@282:                               ets,
adamc@282:                               string " };",
adamc@282:                               newline,
adamc@282:                               newline]
adamc@282:                      end,
adamc@640: 
adamc@282:                  string "PGresult *res = ",
adamc@282:                  case prepared of
adamc@295:                      NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 0);"
adamc@311:                    | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@282:                                     string (Int.toString n),
adamc@282:                                     string "\", ",
adamc@282:                                     string (Int.toString (length (getPargs query))),
adamc@295:                                     string ", paramValues, NULL, NULL, 0);"],
adamc@278:                  newline,
adamc@278:                  newline,
adamc@277: 
adamc@311:                  string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@278:                  newline,
adamc@278:                  newline,
adamc@277: 
adamc@278:                  string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@278:                  newline,
adamc@278:                  box [string "PQclear(res);",
adamc@278:                       newline,
adamc@311:                       string "uw_error(ctx, FATAL, \"",
adamc@278:                       string (ErrorMsg.spanToString loc),
adamc@282:                       string ": Query failed:\\n%s\\n%s\", ",
adamc@282:                       case prepared of
adamc@282:                           NONE => string "query"
adamc@282:                         | SOME _ => p_exp env query,
adamc@282:                       string ", PQerrorMessage(conn));",
adamc@278:                       newline],
adamc@278:                  string "}",
adamc@278:                  newline,
adamc@278:                  newline,
adamc@277: 
adamc@323:                  string "uw_end_region(ctx);",
adamc@323:                  newline,
adamc@425:                  string "uw_push_cleanup(ctx, (void (*)(void *))PQclear, res);",
adamc@425:                  newline,
adamc@278:                  string "n = PQntuples(res);",
adamc@278:                  newline,
adamc@278:                  string "for (i = 0; i < n; ++i) {",
adamc@278:                  newline,
adamc@278:                  box [string "struct",
adamc@278:                       space,
adamc@311:                       string "__uws_",
adamc@278:                       string (Int.toString rnum),
adamc@278:                       space,
adamc@311:                       string "__uwr_r_",
adamc@278:                       string (Int.toString (E.countERels env)),
adamc@278:                       string ";",
adamc@278:                       newline,
adamc@278:                       p_typ env state,
adamc@278:                       space,
adamc@311:                       string "__uwr_acc_",
adamc@278:                       string (Int.toString (E.countERels env + 1)),
adamc@278:                       space,
adamc@278:                       string "=",
adamc@278:                       space,
adamc@278:                       string "acc;",
adamc@278:                       newline,
adamc@278:                       newline,
adamc@278: 
adamc@278:                       p_list_sepi (box []) (fn i =>
adamc@278:                                             fn (proj, t) =>
adamc@311:                                                box [string "__uwr_r_",
adamc@278:                                                     string (Int.toString (E.countERels env)),
adamc@278:                                                     string ".",
adamc@278:                                                     string proj,
adamc@278:                                                     space,
adamc@278:                                                     string "=",
adamc@278:                                                     space,
adamc@467:                                                     p_getcol wontLeakStrings env t i,
adamc@278:                                                     string ";",
adamc@278:                                                     newline]) outputs,
adamc@278:              
adamc@278:                       newline,
adamc@278:                       newline,
adamc@278: 
adamc@278:                       string "acc",
adamc@278:                       space,
adamc@278:                       string "=",
adamc@278:                       space,
adamc@278:                       p_exp (E.pushERel
adamc@278:                                  (E.pushERel env "r" (TRecord rnum, loc))
adamc@278:                                  "acc" state) 
adamc@278:                             body,
adamc@278:                       string ";",
adamc@278:                       newline],
adamc@278:                  string "}",
adamc@278:                  newline,
adamc@278:                  newline,
adamc@425:                  string "uw_pop_cleanup(ctx);",
adamc@278:                  newline,
adamc@324:                  if wontLeakAnything then
adamc@324:                      box [string "uw_end_region(ctx);",
adamc@324:                           newline]
adamc@324:                  else
adamc@324:                      box [],
adamc@278:                  string "acc;",
adamc@278:                  newline,
adamc@640:                  string "})"]
adamc@278:         end
adamc@106: 
adamc@307:       | EDml {dml, prepared} =>
adamc@337:         box [string "(uw_begin_region(ctx), ({",
adamc@307:              newline,
adamc@311:              string "PGconn *conn = uw_get_db(ctx);",
adamc@307:              newline,
adamc@307:              case prepared of
adamc@307:                  NONE => box [string "char *dml = ",
adamc@307:                               p_exp env dml,
adamc@307:                               string ";",
adamc@307:                               newline]
adamc@307:                | SOME _ =>
adamc@307:                  let
adamc@307:                      val ets = getPargs dml
adamc@307:                  in
adamc@307:                      box [p_list_sepi newline
adamc@307:                                       (fn i => fn (e, t) =>
adamc@307:                                                   box [p_sql_type t,
adamc@307:                                                        space,
adamc@307:                                                        string "arg",
adamc@307:                                                        string (Int.toString (i + 1)),
adamc@307:                                                        space,
adamc@307:                                                        string "=",
adamc@307:                                                        space,
adamc@307:                                                        p_exp env e,
adamc@307:                                                        string ";"])
adamc@307:                                       ets,
adamc@307:                           newline,
adamc@307:                           newline,
adamc@307: 
adamc@307:                           string "const char *paramValues[] = { ",
adamc@307:                           p_list_sepi (box [string ",", space])
adamc@307:                                       (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@307:                                                                             string (Int.toString (i + 1))]))
adamc@307:                                       ets,
adamc@307:                           string " };",
adamc@307:                           newline,
adamc@307:                           newline]
adamc@307:                  end,
adamc@307:              newline,
adamc@307:              newline,
adamc@307:              string "PGresult *res = ",
adamc@307:              case prepared of
adamc@307:                  NONE => string "PQexecParams(conn, dml, 0, NULL, NULL, NULL, NULL, 0);"
adamc@311:                | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@307:                                 string (Int.toString n),
adamc@307:                                 string "\", ",
adamc@307:                                 string (Int.toString (length (getPargs dml))),
adamc@307:                                 string ", paramValues, NULL, NULL, 0);"],
adamc@307:              newline,
adamc@307:              newline,
adamc@307: 
adamc@311:              string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating DML result.\");",
adamc@307:              newline,
adamc@307:              newline,
adamc@307: 
adamc@307:              string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@307:              newline,
adamc@307:              box [string "PQclear(res);",
adamc@307:                   newline,
adamc@311:                   string "uw_error(ctx, FATAL, \"",
adamc@307:                   string (ErrorMsg.spanToString loc),
adamc@307:                   string ": DML failed:\\n%s\\n%s\", ",
adamc@307:                   case prepared of
adamc@307:                       NONE => string "dml"
adamc@307:                     | SOME _ => p_exp env dml,
adamc@307:                   string ", PQerrorMessage(conn));",
adamc@307:                   newline],
adamc@307:              string "}",
adamc@307:              newline,
adamc@307:              newline,
adamc@307: 
adamc@307:              string "PQclear(res);",
adamc@307:              newline,
adamc@337:              string "uw_end_region(ctx);",
adamc@337:              newline,
adamc@311:              string "uw_unit_v;",
adamc@307:              newline,
adamc@337:              string "}))"]
adamc@307: 
adamc@338:       | ENextval {seq, prepared} =>
adamc@338:         let
adamc@486:             val query = case seq of
adamc@486:                             (EPrim (Prim.String s), loc) =>
adamc@486:                             (EPrim (Prim.String ("SELECT NEXTVAL('" ^ s ^ "')")), loc)
adamc@486:                           | _ =>
adamc@486:                             let
adamc@486:                                 val query = (EFfiApp ("Basis", "strcat", [seq, (EPrim (Prim.String "')"), loc)]), loc)
adamc@486:                             in
adamc@486:                                 (EFfiApp ("Basis", "strcat", [(EPrim (Prim.String "SELECT NEXTVAL('"), loc), query]), loc)
adamc@486:                             end
adamc@338:         in
adamc@338:             box [string "(uw_begin_region(ctx), ",
adamc@338:                  string "({",
adamc@338:                  newline,
adamc@338:                  string "PGconn *conn = uw_get_db(ctx);",
adamc@338:                  newline,
adamc@338:                  case prepared of
adamc@338:                      NONE => box [string "char *query = ",
adamc@338:                                   p_exp env query,
adamc@338:                                   string ";",
adamc@338:                                   newline]
adamc@338:                    | SOME _ =>
adamc@338:                      box [],
adamc@338:                  newline,
adamc@338:                  string "PGresult *res = ",
adamc@338:                  case prepared of
adamc@338:                      NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 0);"
adamc@338:                    | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@338:                                     string (Int.toString n),
adamc@338:                                     string "\", 0, NULL, NULL, NULL, 0);"],
adamc@338:                  newline,
adamc@338:                  string "uw_Basis_int n;",
adamc@338:                  newline,
adamc@338:                  newline,
adamc@338: 
adamc@338:                  string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating nextval result.\");",
adamc@338:                  newline,
adamc@338:                  newline,
adamc@338: 
adamc@338:                  string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@338:                  newline,
adamc@338:                  box [string "PQclear(res);",
adamc@338:                       newline,
adamc@338:                       string "uw_error(ctx, FATAL, \"",
adamc@338:                       string (ErrorMsg.spanToString loc),
adamc@338:                       string ": Query failed:\\n%s\\n%s\", ",
adamc@338:                       case prepared of
adamc@338:                           NONE => string "query"
adamc@338:                         | SOME _ => p_exp env query,
adamc@338:                       string ", PQerrorMessage(conn));",
adamc@338:                       newline],
adamc@338:                  string "}",
adamc@338:                  newline,
adamc@338:                  newline,
adamc@338: 
adamc@338:                  string "uw_end_region(ctx);",
adamc@338:                  newline,
adamc@338:                  string "n = PQntuples(res);",
adamc@338:                  newline,
adamc@338:                  string "if (n != 1) {",
adamc@338:                  newline,
adamc@338:                  box [string "PQclear(res);",
adamc@338:                       newline,
adamc@338:                       string "uw_error(ctx, FATAL, \"",
adamc@338:                       string (ErrorMsg.spanToString loc),
adamc@338:                       string ": Wrong number of result rows:\\n%s\\n%s\", ",
adamc@338:                       case prepared of
adamc@338:                           NONE => string "query"
adamc@338:                         | SOME _ => p_exp env query,
adamc@338:                       string ", PQerrorMessage(conn));",
adamc@338:                       newline],
adamc@338:                  string "}",
adamc@338:                  newline,
adamc@338:                  newline,
adamc@338: 
adamc@338:                  string "n = ",
adamc@338:                  p_unsql true env (TFfi ("Basis", "int"), loc)
adamc@338:                          (string "PQgetvalue(res, 0, 0)"),
adamc@338:                  string ";",
adamc@338:                  newline,
adamc@338:                  string "PQclear(res);",
adamc@338:                  newline,
adamc@338:                  string "n;",
adamc@338:                  newline,
adamc@338:                  string "}))"]
adamc@338:         end
adamc@338: 
adamc@463:       | EUnurlify (e, t) =>
adamc@463:         let
adamc@463:             fun getIt () =
adamc@463:                 if isUnboxable t then
adamc@463:                     unurlify env t
adamc@463:                 else
adamc@463:                     box [string "({",
adamc@463:                          newline,
adamc@463:                          p_typ env t,
adamc@463:                          string " *tmp = uw_malloc(ctx, sizeof(",
adamc@463:                          p_typ env t,
adamc@463:                          string "));",
adamc@463:                          newline,
adamc@463:                          string "*tmp = ",
adamc@463:                          unurlify env t,
adamc@463:                          string ";",
adamc@463:                          newline,
adamc@463:                          string "tmp;",
adamc@463:                          newline,
adamc@463:                          string "})"]
adamc@463:         in
adamc@463:             box [string "({",
adamc@463:                  newline,
adamc@493:                  string "uw_Basis_string request = uw_Basis_maybe_strdup(ctx, ",
adamc@463:                  p_exp env e,
adamc@492:                  string ");",
adamc@463:                  newline,
adamc@463:                  newline,
adamc@463:                  string "(request ? ",
adamc@463:                  getIt (),
adamc@463:                  string " : NULL);",
adamc@463:                  newline,
adamc@463:                  string "})"]
adamc@463:         end
adamc@463: 
adamc@29: and p_exp env = p_exp' false env
adamc@29: 
adamc@129: fun p_fun env (fx, n, args, ran, e) =
adamc@129:     let
adamc@129:         val nargs = length args
adamc@129:         val env' = foldl (fn ((x, dom), env) => E.pushERel env x dom) env args
adamc@129:     in
adamc@129:         box [string "static",
adamc@129:              space,
adamc@129:              p_typ env ran,
adamc@129:              space,
adamc@316:              string ("__uwn_" ^ ident fx ^ "_" ^ Int.toString n),
adamc@129:              string "(",
adamc@129:              p_list_sep (box [string ",", space]) (fn x => x)
adamc@311:                         (string "uw_context ctx" :: ListUtil.mapi (fn (i, (_, dom)) =>
adamc@129:                                                                       box [p_typ env dom,
adamc@129:                                                                            space,
adamc@129:                                                                            p_rel env' (nargs - i - 1)]) args),
adamc@129:              string ")",
adamc@129:              space,
adamc@129:              string "{",
adamc@129:              newline,
adamc@638:              box [string "return(",
adamc@638:                   p_exp env' e,
adamc@638:                   string ");"],
adamc@129:              newline,
adamc@129:              string "}"]
adamc@129:     end
adamc@129: 
adamc@129: fun p_decl env (dAll as (d, _) : decl) =
adamc@29:     case d of
adamc@29:         DStruct (n, xts) =>
adamc@196:         let
adamc@196:             val env = E.declBinds env dAll
adamc@196:         in
adamc@196:             box [string "struct",
adamc@196:                  space,
adamc@311:                  string ("__uws_" ^ Int.toString n),
adamc@196:                  space,
adamc@196:                  string "{",
adamc@196:                  newline,
adamc@196:                  p_list_sep (box []) (fn (x, t) => box [p_typ env t,
adamc@196:                                                         space,
adamc@311:                                                         string "__uwf_",
adamc@316:                                                         p_ident x,
adamc@196:                                                         string ";",
adamc@196:                                                         newline]) xts,
adamc@196:                  string "};"]
adamc@196:         end
adamc@188:       | DDatatype (Enum, x, n, xncs) =>
adamc@188:         box [string "enum",
adamc@188:              space,
adamc@316:              string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@188:              space,
adamc@188:              string "{",
adamc@188:              space,
adamc@316:              p_list_sep (box [string ",", space]) (fn (x, n, _) =>
adamc@316:                                                       string ("__uwc_" ^ ident x ^ "_" ^ Int.toString n)) xncs,
adamc@188:              space,
adamc@188:              string "};"]
adamc@198:       | DDatatype (Option, _, _, _) => box []
adamc@188:       | DDatatype (Default, x, n, xncs) =>
adamc@165:         let
adamc@165:             val xncsArgs = List.mapPartial (fn (x, n, NONE) => NONE
adamc@165:                                              | (x, n, SOME t) => SOME (x, n, t)) xncs
adamc@165:         in
adamc@165:             box [string "enum",
adamc@165:                  space,
adamc@316:                  string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165:                  space,
adamc@165:                  string "{",
adamc@165:                  space,
adamc@316:                  p_list_sep (box [string ",", space]) (fn (x, n, _) =>
adamc@316:                                                           string ("__uwc_" ^ ident x ^ "_" ^ Int.toString n)) xncs,
adamc@165:                  space,
adamc@165:                  string "};",
adamc@165:                  newline,
adamc@165:                  newline,
adamc@165:                  string "struct",
adamc@165:                  space,
adamc@316:                  string ("__uwd_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165:                  space,
adamc@165:                  string "{",
adamc@165:                  newline,
adamc@165:                  string "enum",
adamc@165:                  space,
adamc@316:                  string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165:                  space,
adamc@165:                  string "tag;",
adamc@165:                  newline,
adamc@165:                  box (case xncsArgs of
adamc@165:                           [] => []
adamc@165:                         | _ => [string "union",
adamc@165:                                 space,
adamc@165:                                 string "{",
adamc@165:                                 newline,
adamc@165:                                 p_list_sep newline (fn (x, n, t) => box [p_typ env t,
adamc@165:                                                                          space,
adamc@316:                                                                          string ("uw_" ^ ident x),
adamc@165:                                                                          string ";"]) xncsArgs,
adamc@165:                                 newline,
adamc@165:                                 string "}",
adamc@165:                                 space,
adamc@165:                                 string "data;",
adamc@165:                                 newline]),
adamc@165:                  string "};"]
adamc@188:         end
adamc@29: 
adamc@196:       | DDatatypeForward _ => box []
adamc@196: 
adamc@29:       | DVal (x, n, t, e) =>
adamc@29:         box [p_typ env t,
adamc@29:              space,
adamc@316:              string ("__uwn_" ^ ident x ^ "_" ^ Int.toString n),
adamc@29:              space,
adamc@29:              string "=",
adamc@29:              space,
adamc@29:              p_exp env e,
adamc@29:              string ";"]
adamc@129:       | DFun vi => p_fun env vi
adamc@129:       | DFunRec vis =>
adamc@29:         let
adamc@129:             val env = E.declBinds env dAll
adamc@29:         in
adamc@129:             box [p_list_sep newline (fn (fx, n, args, ran, _) =>
adamc@129:                                         box [string "static",
adamc@129:                                              space,
adamc@129:                                              p_typ env ran,
adamc@129:                                              space,
adamc@316:                                              string ("__uwn_" ^ ident fx ^ "_" ^ Int.toString n),
adamc@311:                                              string "(uw_context,",
adamc@129:                                              space,
adamc@129:                                              p_list_sep (box [string ",", space])
adamc@129:                                                         (fn (_, dom) => p_typ env dom) args,
adamc@129:                                              string ");"]) vis,
adamc@29:                  newline,
adamc@129:                  p_list_sep newline (p_fun env) vis,
adamc@129:                  newline]
adamc@29:         end
adamc@273:       | DTable (x, _) => box [string "/* SQL table ",
adamc@273:                               string x,
adamc@273:                               string " */",
adamc@273:                               newline]
adamc@338:       | DSequence x => box [string "/* SQL sequence ",
adamc@338:                             string x,
adamc@338:                             string " */",
adamc@338:                             newline]
adamc@311:       | DDatabase s => box [string "static void uw_db_validate(uw_context);",
adamc@272:                             newline,
adamc@311:                             string "static void uw_db_prepare(uw_context);",
adamc@282:                             newline,
adamc@275:                             newline,
adamc@311:                             string "void uw_db_init(uw_context ctx) {",
adamc@273:                             newline,
adamc@272:                             string "PGconn *conn = PQconnectdb(\"",
adamc@272:                             string (String.toString s),
adamc@272:                             string "\");",
adamc@272:                             newline,
adamc@311:                             string "if (conn == NULL) uw_error(ctx, BOUNDED_RETRY, ",
adamc@272:                             string "\"libpq can't allocate a connection.\");",
adamc@272:                             newline,
adamc@272:                             string "if (PQstatus(conn) != CONNECTION_OK) {",
adamc@272:                             newline,
adamc@272:                             box [string "char msg[1024];",
adamc@272:                                  newline,
adamc@272:                                  string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@272:                                  newline,
adamc@272:                                  string "msg[1023] = 0;",
adamc@272:                                  newline,
adamc@272:                                  string "PQfinish(conn);",
adamc@272:                                  newline,
adamc@311:                                  string "uw_error(ctx, BOUNDED_RETRY, ",
adamc@272:                                  string "\"Connection to Postgres server failed: %s\", msg);"],
adamc@272:                             newline,
adamc@272:                             string "}",
adamc@272:                             newline,
adamc@311:                             string "uw_set_db(ctx, conn);",
adamc@272:                             newline,
adamc@311:                             string "uw_db_validate(ctx);",
adamc@275:                             newline,
adamc@311:                             string "uw_db_prepare(ctx);",
adamc@282:                             newline,
adamc@272:                             string "}",
adamc@272:                             newline,
adamc@272:                             newline,
adamc@311:                             string "void uw_db_close(uw_context ctx) {",
adamc@272:                             newline,
adamc@311:                             string "PQfinish(uw_get_db(ctx));",
adamc@272:                             newline,
adamc@272:                             string "}",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424: 
adamc@424:                             string "int uw_db_begin(uw_context ctx) {",
adamc@424:                             newline,
adamc@424:                             string "PGconn *conn = uw_get_db(ctx);",
adamc@424:                             newline,
adamc@424:                             string "PGresult *res = PQexec(conn, \"BEGIN\");",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424:                             string "if (res == NULL) return 1;",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424:                             string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@424:                             box [string "PQclear(res);",
adamc@424:                                  newline,
adamc@424:                                  string "return 1;",
adamc@424:                                  newline],
adamc@424:                             string "}",
adamc@424:                             newline,
adamc@424:                             string "return 0;",
adamc@424:                             newline,
adamc@424:                             string "}",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424: 
adamc@424:                             string "int uw_db_commit(uw_context ctx) {",
adamc@424:                             newline,
adamc@424:                             string "PGconn *conn = uw_get_db(ctx);",
adamc@424:                             newline,
adamc@424:                             string "PGresult *res = PQexec(conn, \"COMMIT\");",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424:                             string "if (res == NULL) return 1;",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424:                             string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@424:                             box [string "PQclear(res);",
adamc@424:                                  newline,
adamc@424:                                  string "return 1;",
adamc@424:                                  newline],
adamc@424:                             string "}",
adamc@424:                             newline,
adamc@424:                             string "return 0;",
adamc@424:                             newline,
adamc@424:                             string "}",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424: 
adamc@424:                             string "int uw_db_rollback(uw_context ctx) {",
adamc@424:                             newline,
adamc@424:                             string "PGconn *conn = uw_get_db(ctx);",
adamc@424:                             newline,
adamc@424:                             string "PGresult *res = PQexec(conn, \"ROLLBACK\");",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424:                             string "if (res == NULL) return 1;",
adamc@424:                             newline,
adamc@424:                             newline,
adamc@424:                             string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@424:                             box [string "PQclear(res);",
adamc@424:                                  newline,
adamc@424:                                  string "return 1;",
adamc@424:                                  newline],
adamc@424:                             string "}",
adamc@424:                             newline,
adamc@424:                             string "return 0;",
adamc@424:                             newline,
adamc@424:                             string "}",
adamc@272:                             newline]
adamc@29: 
adamc@467:       | DPreparedStatements [] =>
adamc@467:         box [string "static void uw_db_prepare(uw_context ctx) {",
adamc@467:              newline,
adamc@467:              string "}"]
adamc@282:       | DPreparedStatements ss =>
adamc@311:         box [string "static void uw_db_prepare(uw_context ctx) {",
adamc@282:              newline,
adamc@311:              string "PGconn *conn = uw_get_db(ctx);",
adamc@282:              newline,
adamc@282:              string "PGresult *res;",
adamc@282:              newline,
adamc@282:              newline,
adamc@282: 
adamc@282:              p_list_sepi newline (fn i => fn (s, n) =>
adamc@311:                                              box [string "res = PQprepare(conn, \"uw",
adamc@282:                                                   string (Int.toString i),
adamc@282:                                                   string "\", \"",
adamc@282:                                                   string (String.toString s),
adamc@282:                                                   string "\", ",
adamc@282:                                                   string (Int.toString n),
adamc@282:                                                   string ", NULL);",
adamc@282:                                                   newline,
adamc@282:                                                   string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@282:                                                   newline,
adamc@282:                                                   box [string "char msg[1024];",
adamc@282:                                                        newline,
adamc@282:                                                        string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@282:                                                        newline,
adamc@282:                                                        string "msg[1023] = 0;",
adamc@282:                                                        newline,
adamc@282:                                                        string "PQclear(res);",
adamc@282:                                                        newline,
adamc@282:                                                        string "PQfinish(conn);",
adamc@282:                                                        newline,
adamc@311:                                                        string "uw_error(ctx, FATAL, \"Unable to create prepared statement:\\n",
adamc@282:                                                        string (String.toString s),
adamc@282:                                                        string "\\n%s\", msg);",
adamc@282:                                                        newline],
adamc@282:                                                   string "}",
adamc@282:                                                   newline,
adamc@282:                                                   string "PQclear(res);",
adamc@282:                                                   newline])
adamc@282:                          ss,
adamc@282:              
adamc@282:              string "}"]
adamc@282: 
adamc@569:       | DJavaScript s => box [string "static char jslib[] = \"",
adamc@569:                               string (String.toString s),
adamc@569:                               string "\";"]
adamc@569: 
adamc@144: datatype 'a search =
adamc@144:          Found of 'a
adamc@144:        | NotFound
adamc@144:        | Error
adamc@120: 
adamc@467: fun p_sqltype'' env (tAll as (t, loc)) =
adamc@275:     case t of
adamc@275:         TFfi ("Basis", "int") => "int8"
adamc@275:       | TFfi ("Basis", "float") => "float8"
adamc@275:       | TFfi ("Basis", "string") => "text"
adamc@275:       | TFfi ("Basis", "bool") => "bool"
adamc@438:       | TFfi ("Basis", "time") => "timestamp"
adamc@678:       | TFfi ("Basis", "channel") => "int4"
adamc@275:       | _ => (ErrorMsg.errorAt loc "Don't know SQL equivalent of type";
adamc@275:               Print.eprefaces' [("Type", p_typ env tAll)];
adamc@275:               "ERROR")
adamc@275: 
adamc@467: fun p_sqltype' env (tAll as (t, loc)) =
adamc@467:     case t of
adamc@467:         (TOption t, _) => p_sqltype'' env t
adamc@467:       | _ => p_sqltype'' env t ^ " NOT NULL"
adamc@467: 
adamc@275: fun p_sqltype env t = string (p_sqltype' env t)
adamc@101: 
adamc@467: fun p_sqltype_base' env t =
adamc@467:     case t of
adamc@467:         (TOption t, _) => p_sqltype'' env t
adamc@467:       | _ => p_sqltype'' env t
adamc@467: 
adamc@467: fun p_sqltype_base env t = string (p_sqltype_base' env t)
adamc@467: 
adamc@467: fun is_not_null t =
adamc@467:     case t of
adamc@467:         (TOption _, _) => false
adamc@467:       | _ => true
adamc@467: 
adamc@101: fun p_file env (ds, ps) =
adamc@29:     let
adamc@101:         val (pds, env) = ListUtil.foldlMap (fn (d, env) =>
adamc@638:                                                (p_decl env d,
adamc@638:                                                 E.declBinds env d))
adamc@101:                              env ds
adamc@144: 
adamc@643:         val fields = foldl (fn ((ek, _, _, ts, _, _), fields) =>
adamc@144:                                case ek of
adamc@144:                                    Core.Link => fields
adamc@608:                                  | Core.Rpc => fields
adamc@144:                                  | Core.Action =>
adamc@280:                                    case List.nth (ts, length ts - 2) of
adamc@144:                                        (TRecord i, _) =>
adamc@144:                                        let
adamc@144:                                            val xts = E.lookupStruct env i
adamc@144:                                            val xtsSet = SS.addList (SS.empty, map #1 xts)
adamc@144:                                        in
adamc@144:                                            foldl (fn ((x, _), fields) =>
adamc@144:                                                      let
adamc@144:                                                          val xtsSet' = Option.getOpt (SM.find (fields, x), SS.empty)
adamc@144:                                                      in
adamc@144:                                                          SM.insert (fields, x, SS.union (SS.delete (xtsSet, x),
adamc@144:                                                                                          xtsSet'))
adamc@144:                                                      end) fields xts
adamc@144:                                        end
adamc@144:                                      | _ => raise Fail "CjrPrint: Last argument of action isn't record")
adamc@144:                      SM.empty ps
adamc@144: 
adamc@144:         val fnums = SM.foldli (fn (x, xs, fnums) =>
adamc@144:                                   let
adamc@144:                                       val unusable = SS.foldl (fn (x', unusable) =>
adamc@144:                                                                   case SM.find (fnums, x') of
adamc@144:                                                                       NONE => unusable
adamc@144:                                                                     | SOME n => IS.add (unusable, n))
adamc@144:                                                      IS.empty xs
adamc@144: 
adamc@144:                                       fun findAvailable n =
adamc@144:                                           if IS.member (unusable, n) then
adamc@144:                                               findAvailable (n + 1)
adamc@144:                                           else
adamc@144:                                               n
adamc@144:                                   in
adamc@144:                                       SM.insert (fnums, x, findAvailable 0)
adamc@144:                                   end)
adamc@144:                     SM.empty fields
adamc@144: 
adamc@144:         fun makeSwitch (fnums, i) =
adamc@144:             case SM.foldl (fn (n, NotFound) => Found n
adamc@144:                             | (n, Error) => Error
adamc@144:                             | (n, Found n') => if n = n' then
adamc@144:                                                   Found n'
adamc@144:                                                else
adamc@144:                                                    Error) NotFound fnums of
adamc@144:                 NotFound => box [string "return",
adamc@144:                                  space,
adamc@144:                                  string "-1;"]
adamc@144:               | Found n => box [string "return",
adamc@144:                                 space,
adamc@144:                                 string (Int.toString n),
adamc@144:                                 string ";"]
adamc@144:               | Error =>
adamc@144:                 let
adamc@144:                     val cmap = SM.foldli (fn (x, n, cmap) =>
adamc@144:                                              let
adamc@144:                                                  val ch = if i < size x then
adamc@144:                                                               String.sub (x, i)
adamc@144:                                                           else
adamc@144:                                                               chr 0
adamc@144: 
adamc@144:                                                  val fnums = case CM.find (cmap, ch) of
adamc@144:                                                                  NONE => SM.empty
adamc@144:                                                                | SOME fnums => fnums
adamc@144:                                                  val fnums = SM.insert (fnums, x, n)
adamc@144:                                              in
adamc@144:                                                  CM.insert (cmap, ch, fnums)
adamc@144:                                              end)
adamc@144:                                CM.empty fnums
adamc@144: 
adamc@144:                     val cmap = CM.listItemsi cmap
adamc@144:                 in
adamc@144:                     case cmap of
adamc@144:                         [(_, fnums)] =>
adamc@144:                         box [string "if",
adamc@144:                              space,
adamc@144:                              string "(name[",
adamc@144:                              string (Int.toString i),
adamc@144:                              string "]",
adamc@144:                              space,
adamc@144:                              string "==",
adamc@144:                              space,
adamc@144:                              string "0)",
adamc@144:                              space,
adamc@144:                              string "return",
adamc@144:                              space,
adamc@144:                              string "-1;",
adamc@144:                              newline,
adamc@144:                              makeSwitch (fnums, i+1)]
adamc@144:                       | _ =>
adamc@144:                         box [string "switch",
adamc@144:                              space,
adamc@144:                              string "(name[",
adamc@144:                              string (Int.toString i),
adamc@144:                              string "])",
adamc@144:                              space,
adamc@144:                              string "{",
adamc@144:                              newline,
adamc@144:                              box (map (fn (ch, fnums) =>
adamc@144:                                           box [string "case",
adamc@144:                                                space,
adamc@144:                                                if ch = chr 0 then
adamc@144:                                                    string "0:"
adamc@144:                                                else
adamc@144:                                                    box [string "'",
adamc@144:                                                         string (Char.toString ch),
adamc@144:                                                         string "':"],
adamc@144:                                                newline,
adamc@144:                                                makeSwitch (fnums, i+1),
adamc@144:                                                newline]) cmap),
adamc@144:                              string "default:",
adamc@144:                              newline,
adamc@144:                              string "return",
adamc@144:                              space,
adamc@144:                              string "-1;",
adamc@144:                              newline,
adamc@144:                              string "}"]
adamc@144:                 end
adamc@144: 
adamc@643:         fun p_page (ek, s, n, ts, ran, side) =
adamc@144:             let
adamc@144:                 val (ts, defInputs, inputsVar) =
adamc@144:                     case ek of
adamc@314:                         Core.Link => (List.take (ts, length ts - 1), string "", string "")
adamc@608:                       | Core.Rpc => (List.take (ts, length ts - 1), string "", string "")
adamc@144:                       | Core.Action =>
adamc@280:                         case List.nth (ts, length ts - 2) of
adamc@144:                             (TRecord i, _) =>
adamc@144:                             let
adamc@144:                                 val xts = E.lookupStruct env i
adamc@144:                             in
adamc@280:                                 (List.take (ts, length ts - 2),
adamc@144:                                  box [box (map (fn (x, t) => box [p_typ env t,
adamc@144:                                                                   space,
adamc@311:                                                                   string "uw_input_",
adamc@316:                                                                   p_ident x,
adamc@144:                                                                   string ";",
adamc@144:                                                                   newline]) xts),
adamc@144:                                       newline,
adamc@144:                                       box (map (fn (x, t) =>
adamc@144:                                                    let
adamc@144:                                                        val n = case SM.find (fnums, x) of
adamc@144:                                                                    NONE => raise Fail "CjrPrint: Can't find in fnums"
adamc@144:                                                                  | SOME n => n
adamc@190: 
adamc@190:                                                        val f = case t of
adamc@190:                                                                    (TFfi ("Basis", "bool"), _) => "optional_"
adamc@190:                                                                  | _ => ""
adamc@144:                                                    in
adamc@311:                                                        box [string "request = uw_get_",
adamc@190:                                                             string f,
adamc@190:                                                             string "input(ctx, ",
adamc@144:                                                             string (Int.toString n),
adamc@144:                                                             string ");",
adamc@144:                                                             newline,
adamc@433:                                                             string "if (request == NULL)",
adamc@144:                                                             newline,
adamc@433:                                                             box [string "uw_error(ctx, FATAL, \"Missing input ",
adamc@144:                                                                  string x,
adamc@433:                                                                  string "\");"],
adamc@144:                                                             newline,
adamc@311:                                                             string "uw_input_",
adamc@316:                                                             p_ident x,
adamc@144:                                                             space,
adamc@144:                                                             string "=",
adamc@144:                                                             space,
adamc@463:                                                             unurlify env t,
adamc@144:                                                             string ";",
adamc@144:                                                             newline]
adamc@144:                                                    end) xts),
adamc@311:                                       string "struct __uws_",
adamc@144:                                       string (Int.toString i),
adamc@144:                                       space,
adamc@311:                                       string "uw_inputs",
adamc@144:                                       space,
adamc@144:                                       string "= {",
adamc@144:                                       newline,
adamc@311:                                       box (map (fn (x, _) => box [string "uw_input_",
adamc@316:                                                                   p_ident x,
adamc@144:                                                                   string ",",
adamc@144:                                                                   newline]) xts),
adamc@144:                                       string "};",
adamc@144:                                       newline],
adamc@144:                                  box [string ",",
adamc@144:                                       space,
adamc@311:                                       string "uw_inputs"])
adamc@144:                             end
adamc@144: 
adamc@144:                           | _ => raise Fail "CjrPrint: Last argument to an action isn't a record"
adamc@144:             in
adamc@144:                 box [string "if (!strncmp(request, \"",
adamc@144:                      string (String.toString s),
adamc@144:                      string "\", ",
adamc@144:                      string (Int.toString (size s)),
adamc@198:                      string ") && (request[",
adamc@198:                      string (Int.toString (size s)),
adamc@198:                      string "] == 0 || request[",
adamc@198:                      string (Int.toString (size s)),
adamc@198:                      string "] == '/')) {",
adamc@144:                      newline,
adamc@144:                      string "request += ",
adamc@144:                      string (Int.toString (size s)),
adamc@144:                      string ";",
adamc@144:                      newline,
adamc@144:                      string "if (*request == '/') ++request;",
adamc@144:                      newline,
adamc@609:                      box (case ek of
adamc@610:                               Core.Rpc => [string "uw_write_header(ctx, \"Content-type: text/plain\\r\\n\");",
adamc@610:                                            newline]
adamc@609:                             | _ => [string "uw_write_header(ctx, \"Content-type: text/html\\r\\n\");",
adamc@609:                                     newline,
adamc@609:                                     string "uw_write_header(ctx, \"Content-script-type: text/javascript\\r\\n\");",
adamc@609:                                     newline,
adamc@609:                                     string "uw_write(ctx, \"<html>\");",
adamc@643:                                     newline,
adamc@643:                                     string "uw_set_script_header(ctx, \"",
adamc@643:                                     string (case side of
adamc@645:                                                 ServerAndClient => "<script src=\\\""
adamc@645:                                                                    ^ OS.Path.joinDirFile {dir = !Monoize.urlPrefix,
adamc@645:                                                                                           file = "app.js"}
adamc@645:                                                                    ^ "\\\"></script>\\n"
adamc@643:                                               | ServerOnly => ""),
adamc@643:                                     string "\");",
adamc@667:                                     string "uw_set_url_prefix(ctx, \"",
adamc@667:                                     string (!Monoize.urlPrefix),
adamc@667:                                     string "\");",
adamc@609:                                     newline]),
adamc@144:                      box [string "{",
adamc@144:                           newline,
adamc@144:                           box (ListUtil.mapi (fn (i, t) => box [p_typ env t,
adamc@144:                                                                 space,
adamc@144:                                                                 string "arg",
adamc@144:                                                                 string (Int.toString i),
adamc@144:                                                                 space,
adamc@144:                                                                 string "=",
adamc@144:                                                                 space,
adamc@463:                                                                 unurlify env t,
adamc@144:                                                                 string ";",
adamc@144:                                                                 newline]) ts),
adamc@144:                           defInputs,
adamc@609:                           box (case ek of
adamc@609:                                    Core.Rpc => [p_typ env ran,
adamc@609:                                                 space,
adamc@610:                                                 string "it0",
adamc@609:                                                 space,
adamc@609:                                                 string "=",
adamc@609:                                                 space]
adamc@609:                                  | _ => []),
adamc@144:                           p_enamed env n,
adamc@144:                           string "(",
adamc@144:                           p_list_sep (box [string ",", space])
adamc@144:                                      (fn x => x)
adamc@272:                                      (string "ctx"
adamc@280:                                       :: ListUtil.mapi (fn (i, _) => string ("arg" ^ Int.toString i)) ts),
adamc@144:                           inputsVar,
adamc@311:                           string ", uw_unit_v);",
adamc@144:                           newline,
adamc@609:                           box (case ek of
adamc@610:                                    Core.Rpc => [urlify env ran]
adamc@609:                                  | _ => [string "uw_write(ctx, \"</html>\");",
adamc@609:                                          newline]),
adamc@144:                           string "return;",
adamc@144:                           newline,
adamc@144:                           string "}",
adamc@144:                           newline,
adamc@144:                           string "}"]
adamc@144:                     ]
adamc@144:             end
adamc@144: 
adamc@144:         val pds' = map p_page ps
adamc@275: 
adamc@275:         val tables = List.mapPartial (fn (DTable (s, xts), _) => SOME (s, xts)
adamc@275:                                        | _ => NONE) ds
adamc@377:         val sequences = List.mapPartial (fn (DSequence s, _) => SOME s
adamc@377:                                           | _ => NONE) ds
adamc@275: 
adamc@275:         val validate =
adamc@311:             box [string "static void uw_db_validate(uw_context ctx) {",
adamc@275:                  newline,
adamc@311:                  string "PGconn *conn = uw_get_db(ctx);",
adamc@275:                  newline,
adamc@275:                  string "PGresult *res;",
adamc@275:                  newline,
adamc@275:                  newline,
adamc@275:                  p_list_sep newline
adamc@275:                             (fn (s, xts) =>
adamc@275:                                 let
adamc@377:                                     val sl = CharVector.map Char.toLower s
adamc@377: 
adamc@275:                                     val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@377:                                             ^ sl ^ "'"
adamc@275: 
adamc@275:                                     val q' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@377:                                                             sl,
adamc@275:                                                             "') AND (",
adamc@275:                                                             String.concatWith " OR "
adamc@275:                                                               (map (fn (x, t) =>
adamc@311:                                                                        String.concat ["(attname = 'uw_",
adamc@275:                                                                                       CharVector.map
adamc@316:                                                                                           Char.toLower (ident x),
adamc@275:                                                                                       "' AND atttypid = (SELECT oid FROM pg_type",
adamc@275:                                                                                       " WHERE typname = '",
adamc@467:                                                                                       p_sqltype_base' env t,
adamc@467:                                                                                       "') AND attnotnull = ",
adamc@467:                                                                                       if is_not_null t then
adamc@467:                                                                                           "TRUE"
adamc@467:                                                                                       else
adamc@467:                                                                                           "FALSE",
adamc@467:                                                                                       ")"]) xts),
adamc@275:                                                             ")"]
adamc@275: 
adamc@275:                                     val q'' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@377:                                                              sl,
adamc@325:                                                              "') AND attname LIKE 'uw_%'"]
adamc@275:                                 in
adamc@275:                                     box [string "res = PQexec(conn, \"",
adamc@275:                                          string q,
adamc@275:                                          string "\");",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (res == NULL) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "char msg[1024];",
adamc@275:                                               newline,
adamc@275:                                               string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275:                                               newline,
adamc@275:                                               string "msg[1023] = 0;",
adamc@275:                                               newline,
adamc@275:                                               string "PQclear(res);",
adamc@275:                                               newline,
adamc@275:                                               string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275:                                               string q,
adamc@275:                                               string "\\n%s\", msg);",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "PQclear(res);",
adamc@275:                                               newline,
adamc@275:                                               string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Table '",
adamc@275:                                               string s,
adamc@275:                                               string "' does not exist.\");",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "PQclear(res);",
adamc@275:                                          newline,
adamc@275: 
adamc@275:                                          string "res = PQexec(conn, \"",
adamc@275:                                          string q',
adamc@275:                                          string "\");",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (res == NULL) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "char msg[1024];",
adamc@275:                                               newline,
adamc@275:                                               string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275:                                               newline,
adamc@275:                                               string "msg[1023] = 0;",
adamc@275:                                               newline,
adamc@275:                                               string "PQclear(res);",
adamc@275:                                               newline,
adamc@275:                                               string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275:                                               string q',
adamc@275:                                               string "\\n%s\", msg);",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275:                                          string (Int.toString (length xts)),
adamc@275:                                          string "\")) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "PQclear(res);",
adamc@275:                                               newline,
adamc@275:                                               string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Table '",
adamc@275:                                               string s,
adamc@275:                                               string "' has the wrong column types.\");",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "PQclear(res);",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275: 
adamc@275:                                          string "res = PQexec(conn, \"",
adamc@275:                                          string q'',
adamc@275:                                          string "\");",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (res == NULL) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "char msg[1024];",
adamc@275:                                               newline,
adamc@275:                                               string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275:                                               newline,
adamc@275:                                               string "msg[1023] = 0;",
adamc@275:                                               newline,
adamc@275:                                               string "PQclear(res);",
adamc@275:                                               newline,
adamc@275:                                               string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275:                                               string q'',
adamc@275:                                               string "\\n%s\", msg);",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275:                                          string (Int.toString (length xts)),
adamc@275:                                          string "\")) {",
adamc@275:                                          newline,
adamc@275:                                          box [string "PQclear(res);",
adamc@275:                                               newline,
adamc@275:                                               string "PQfinish(conn);",
adamc@275:                                               newline,
adamc@311:                                               string "uw_error(ctx, FATAL, \"Table '",
adamc@275:                                               string s,
adamc@275:                                               string "' has extra columns.\");",
adamc@275:                                               newline],
adamc@275:                                          string "}",
adamc@275:                                          newline,
adamc@275:                                          newline,
adamc@275:                                          string "PQclear(res);",
adamc@275:                                          newline]
adamc@275:                                 end) tables,
adamc@377: 
adamc@377:                  p_list_sep newline
adamc@377:                             (fn s =>
adamc@377:                                 let
adamc@377:                                     val sl = CharVector.map Char.toLower s
adamc@377: 
adamc@377:                                     val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@377:                                             ^ sl ^ "' AND relkind = 'S'"
adamc@377:                                 in
adamc@377:                                     box [string "res = PQexec(conn, \"",
adamc@377:                                          string q,
adamc@377:                                          string "\");",
adamc@377:                                          newline,
adamc@377:                                          newline,
adamc@377:                                          string "if (res == NULL) {",
adamc@377:                                          newline,
adamc@377:                                          box [string "PQfinish(conn);",
adamc@377:                                               newline,
adamc@377:                                               string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@377:                                               newline],
adamc@377:                                          string "}",
adamc@377:                                          newline,
adamc@377:                                          newline,
adamc@377:                                          string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@377:                                          newline,
adamc@377:                                          box [string "char msg[1024];",
adamc@377:                                               newline,
adamc@377:                                               string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@377:                                               newline,
adamc@377:                                               string "msg[1023] = 0;",
adamc@377:                                               newline,
adamc@377:                                               string "PQclear(res);",
adamc@377:                                               newline,
adamc@377:                                               string "PQfinish(conn);",
adamc@377:                                               newline,
adamc@377:                                               string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@377:                                               string q,
adamc@377:                                               string "\\n%s\", msg);",
adamc@377:                                               newline],
adamc@377:                                          string "}",
adamc@377:                                          newline,
adamc@377:                                          newline,
adamc@377:                                          string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@377:                                          newline,
adamc@377:                                          box [string "PQclear(res);",
adamc@377:                                               newline,
adamc@377:                                               string "PQfinish(conn);",
adamc@377:                                               newline,
adamc@377:                                               string "uw_error(ctx, FATAL, \"Sequence '",
adamc@377:                                               string s,
adamc@377:                                               string "' does not exist.\");",
adamc@377:                                               newline],
adamc@377:                                          string "}",
adamc@377:                                          newline,
adamc@377:                                          newline,
adamc@377:                                          string "PQclear(res);",
adamc@377:                                          newline]
adamc@377:                                 end) sequences,
adamc@377: 
adamc@275:                  string "}"]
adamc@432: 
adamc@432:         val hasDb = List.exists (fn (DDatabase _, _) => true | _ => false) ds
adamc@29:     in
adamc@144:         box [string "#include <stdio.h>",
adamc@144:              newline,
adamc@144:              string "#include <stdlib.h>",
adamc@144:              newline,
adamc@272:              string "#include <string.h>",
adamc@272:              newline,
adamc@390:              string "#include <math.h>",
adamc@390:              newline,
adamc@432:              if hasDb then
adamc@432:                  box [string "#include <postgresql/libpq-fe.h>",
adamc@432:                       newline]
adamc@432:              else
adamc@432:                  box [],
adamc@144:              newline,
adamc@378:              string "#include \"",
adamc@378:              string (OS.Path.joinDirFile {dir = Config.includ,
adamc@378:                                           file = "urweb.h"}),
adamc@378:              string "\"",
adamc@101:              newline,
adamc@101:              newline,
adamc@101:              p_list_sep newline (fn x => x) pds,
adamc@101:              newline,
adamc@311:              string "int uw_inputs_len = ",
adamc@144:              string (Int.toString (SM.foldl Int.max 0 fnums + 1)),
adamc@144:              string ";",
adamc@144:              newline,
adamc@673:              string "int uw_timeout = ",
adamc@673:              string (Int.toString (!timeout)),
adamc@673:              string ";",
adamc@673:              newline,
adamc@144:              newline,
adamc@311:              string "int uw_input_num(char *name) {",
adamc@144:              newline,
adamc@144:              makeSwitch (fnums, 0),
adamc@144:              string "}",
adamc@144:              newline,
adamc@144:              newline,
adamc@311:              string "void uw_handle(uw_context ctx, char *request) {",
adamc@101:              newline,
adamc@569:              string "if (!strcmp(request, \"/app.js\")) {",
adamc@569:              newline,
adamc@569:              box [string "uw_write_header(ctx, \"Content-type: text/javascript\\r\\n\");",
adamc@569:                   newline,
adamc@569:                   string "uw_write(ctx, jslib);",
adamc@569:                   newline,
adamc@569:                   string "return;",
adamc@569:                   newline],
adamc@569:              string "}",
adamc@569:              newline,
adamc@101:              p_list_sep newline (fn x => x) pds',
adamc@101:              newline,
adamc@387:              string "uw_error(ctx, FATAL, \"Unknown page\");",
adamc@387:              newline,
adamc@101:              string "}",
adamc@275:              newline,
adamc@275:              newline,
adamc@432:              if hasDb then
adamc@432:                  validate
adamc@432:              else
adamc@432:                  box [],
adamc@376:              newline,
adamc@376:              if List.exists (fn (DDatabase _, _) => true | _ => false) ds then
adamc@376:                  box []
adamc@376:              else
adamc@376:                  box [newline,
adamc@376:                       string "void uw_db_init(uw_context ctx) { };",
adamc@424:                       newline,
adamc@424:                       string "int uw_db_begin(uw_context ctx) { return 0; };",
adamc@424:                       newline,
adamc@424:                       string "int uw_db_commit(uw_context ctx) { return 0; };",
adamc@424:                       newline,
adamc@424:                       string "int uw_db_rollback(uw_context ctx) { return 0; };",
adamc@376:                       newline]]
adamc@29:     end
adamc@29: 
adamc@274: fun p_sql env (ds, _) =
adamc@274:     let
adamc@274:         val (pps, _) = ListUtil.foldlMap
adamc@274:                        (fn (dAll as (d, _), env) =>
adamc@274:                            let
adamc@274:                                val pp = case d of
adamc@274:                                             DTable (s, xts) =>
adamc@274:                                             box [string "CREATE TABLE ",
adamc@274:                                                  string s,
adamc@274:                                                  string "(",
adamc@274:                                                  p_list (fn (x, t) =>
adamc@311:                                                             box [string "uw_",
adamc@275:                                                                  string (CharVector.map Char.toLower x),
adamc@274:                                                                  space,
adamc@467:                                                                  p_sqltype env (t, ErrorMsg.dummySpan)]) xts,
adamc@274:                                                  string ");",
adamc@274:                                                  newline,
adamc@274:                                                  newline]
adamc@338:                                           | DSequence s =>
adamc@338:                                             box [string "CREATE SEQUENCE ",
adamc@338:                                                  string s,
adamc@338:                                                  string ";",
adamc@338:                                                  newline,
adamc@338:                                                  newline]
adamc@274:                                           | _ => box []
adamc@274:                            in
adamc@274:                                (pp, E.declBinds env dAll)
adamc@274:                            end)
adamc@274:                        env ds
adamc@274:     in
adamc@274:         box pps
adamc@274:     end
adamc@274: 
adamc@29: end