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|
(* Copyright (c) 2008, Adam Chlipala
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - The names of contributors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*)
(* Ur/Web language parser *)
structure Compiler :> COMPILER = struct
structure UrwebLrVals = UrwebLrValsFn(structure Token = LrParser.Token)
structure Lex = UrwebLexFn(structure Tokens = UrwebLrVals.Tokens)
structure UrwebP = Join(structure ParserData = UrwebLrVals.ParserData
structure Lex = Lex
structure LrParser = LrParser)
type job = {
database : string option,
sources : string list,
exe : string,
sql : string option,
debug : bool
}
type ('src, 'dst) phase = {
func : 'src -> 'dst,
print : 'dst -> Print.PD.pp_desc
}
type pmap = (string * Time.time) list
type ('src, 'dst) transform = {
func : 'src -> 'dst option,
print : 'dst -> Print.PD.pp_desc,
time : 'src * pmap -> 'dst option * pmap
}
fun transform (ph : ('src, 'dst) phase) name = {
func = fn input => let
val v = #func ph input
in
if ErrorMsg.anyErrors () then
NONE
else
SOME v
end,
print = #print ph,
time = fn (input, pmap) => let
val befor = Time.now ()
val v = #func ph input
val elapsed = Time.- (Time.now (), befor)
in
(if ErrorMsg.anyErrors () then
NONE
else
SOME v,
(name, elapsed) :: pmap)
end
}
fun op o (tr2 : ('b, 'c) transform, tr1 : ('a, 'b) transform) = {
func = fn input => case #func tr1 input of
NONE => NONE
| SOME v => #func tr2 v,
print = #print tr2,
time = fn (input, pmap) => let
val (ro, pmap) = #time tr1 (input, pmap)
in
case ro of
NONE => (NONE, pmap)
| SOME v => #time tr2 (v, pmap)
end
}
fun check (tr : ('src, 'dst) transform) x = (ErrorMsg.resetErrors ();
ignore (#func tr x))
fun run (tr : ('src, 'dst) transform) x = (ErrorMsg.resetErrors ();
#func tr x)
fun runPrint (tr : ('src, 'dst) transform) input =
(ErrorMsg.resetErrors ();
case #func tr input of
NONE => print "Failure\n"
| SOME v =>
(print "Success\n";
Print.print (#print tr v);
print "\n"))
fun time (tr : ('src, 'dst) transform) input =
let
val (_, pmap) = #time tr (input, [])
in
app (fn (name, time) =>
print (name ^ ": " ^ LargeReal.toString (Time.toReal time) ^ "\n")) (rev pmap);
print ("TOTAL: " ^ LargeReal.toString (Time.toReal (foldl Time.+ Time.zeroTime (map #2 pmap))) ^ "\n");
print "\n"
end
fun timePrint (tr : ('src, 'dst) transform) input =
let
val (ro, pmap) = #time tr (input, [])
in
app (fn (name, time) =>
print (name ^ ": " ^ LargeReal.toString (Time.toReal time) ^ "\n")) (rev pmap);
print ("TOTAL: " ^ LargeReal.toString (Time.toReal (foldl Time.+ Time.zeroTime (map #2 pmap))) ^ "\n");
print "\n";
case ro of
NONE => print "Failure\n"
| SOME v =>
(print "Success\n";
Print.print (#print tr v);
print "\n")
end
val parseUrs =
{func = fn filename => let
val fname = OS.FileSys.tmpName ()
val outf = TextIO.openOut fname
val () = TextIO.output (outf, "sig\n")
val inf = TextIO.openIn filename
fun loop () =
case TextIO.inputLine inf of
NONE => ()
| SOME line => (TextIO.output (outf, line);
loop ())
val () = loop ()
val () = TextIO.closeIn inf
val () = TextIO.closeOut outf
val () = (ErrorMsg.resetErrors ();
ErrorMsg.resetPositioning filename;
Lex.UserDeclarations.initialize ())
val file = TextIO.openIn fname
fun get _ = TextIO.input file
fun parseerror (s, p1, p2) = ErrorMsg.errorAt' (p1, p2) s
val lexer = LrParser.Stream.streamify (Lex.makeLexer get)
val (absyn, _) = UrwebP.parse (30, lexer, parseerror, ())
in
TextIO.closeIn file;
case absyn of
[(Source.DSgn ("?", (Source.SgnConst sgis, _)), _)] => sgis
| _ => (ErrorMsg.errorAt {file = filename,
first = {line = 0,
char = 0},
last = {line = 0,
char = 0}} "Not a signature";
[])
end
handle LrParser.ParseError => [],
print = Print.p_list_sep Print.PD.newline SourcePrint.p_sgn_item}
(* The main parsing routine *)
val parseUr = {
func = fn filename =>
let
val () = (ErrorMsg.resetErrors ();
ErrorMsg.resetPositioning filename;
Lex.UserDeclarations.initialize ())
val file = TextIO.openIn filename
fun get _ = TextIO.input file
fun parseerror (s, p1, p2) = ErrorMsg.errorAt' (p1, p2) s
val lexer = LrParser.Stream.streamify (Lex.makeLexer get)
val (absyn, _) = UrwebP.parse (30, lexer, parseerror, ())
in
TextIO.closeIn file;
case absyn of
[(Source.DSgn ("?", _), _)] =>
(ErrorMsg.errorAt {file = filename,
first = {line = 0,
char = 0},
last = {line = 0,
char = 0}} "File starts with 'sig'";
[])
| _ => absyn
end
handle LrParser.ParseError => [],
print = SourcePrint.p_file}
fun p_job {database, exe, sql, sources, debug} =
let
open Print.PD
open Print
in
box [if debug then
box [string "DEBUG", newline]
else
box [],
case database of
NONE => string "No database."
| SOME db => string ("Database: " ^ db),
newline,
string "Exe: ",
string exe,
newline,
case sql of
NONE => string "No SQL file."
| SOME sql => string ("SQL fle: " ^ sql),
string "Sources:",
p_list string sources,
newline]
end
fun trim s =
let
val (_, s) = Substring.splitl Char.isSpace s
val (s, _) = Substring.splitr Char.isSpace s
in
s
end
val parseUrp = {
func = fn filename =>
let
val dir = OS.Path.dir filename
val inf = TextIO.openIn (OS.Path.joinBaseExt {base = filename, ext = SOME "urp"})
fun relify fname =
OS.Path.concat (dir, fname)
handle OS.Path.Path => fname
fun readSources acc =
case TextIO.inputLine inf of
NONE => rev acc
| SOME line =>
let
val acc = if CharVector.all Char.isSpace line then
acc
else
let
val fname = String.implode (List.filter (fn x => not (Char.isSpace x))
(String.explode line))
val fname = relify fname
in
fname :: acc
end
in
readSources acc
end
fun finish (database, exe, sql, debug, sources) =
{database = database,
exe = Option.getOpt (exe, OS.Path.joinBaseExt {base = OS.Path.base filename,
ext = SOME "exe"}),
sql = sql,
debug = debug,
sources = sources}
fun read (database, exe, sql, debug) =
case TextIO.inputLine inf of
NONE => finish (database, exe, sql, debug, [])
| SOME "\n" => finish (database, exe, sql, debug, readSources [])
| SOME line =>
let
val (cmd, arg) = Substring.splitl (fn x => not (Char.isSpace x)) (Substring.full line)
val cmd = Substring.string (trim cmd)
val arg = Substring.string (trim arg)
in
case cmd of
"database" =>
(case database of
NONE => ()
| SOME _ => ErrorMsg.error "Duplicate 'database' directive";
read (SOME arg, exe, sql, debug))
| "exe" =>
(case exe of
NONE => ()
| SOME _ => ErrorMsg.error "Duplicate 'exe' directive";
read (database, SOME (relify arg), sql, debug))
| "sql" =>
(case sql of
NONE => ()
| SOME _ => ErrorMsg.error "Duplicate 'sql' directive";
read (database, exe, SOME (relify arg), debug))
| "debug" => read (database, exe, sql, true)
| _ => (ErrorMsg.error ("Unrecognized command '" ^ cmd ^ "'");
read (database, exe, sql, debug))
end
in
read (NONE, NONE, NONE, false)
before TextIO.closeIn inf
end,
print = p_job
}
val toParseJob = transform parseUrp "parseJob"
fun capitalize "" = ""
| capitalize s = str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
val parse = {
func = fn {database, sources = fnames, ...} : job =>
let
fun nameOf fname = capitalize (OS.Path.file fname)
fun parseOne fname =
let
val mname = nameOf fname
val ur = OS.Path.joinBaseExt {base = fname, ext = SOME "ur"}
val urs = OS.Path.joinBaseExt {base = fname, ext = SOME "urs"}
val sgnO =
if Posix.FileSys.access (urs, []) then
SOME (Source.SgnConst (#func parseUrs urs),
{file = urs,
first = ErrorMsg.dummyPos,
last = ErrorMsg.dummyPos})
else
NONE
val loc = {file = ur,
first = ErrorMsg.dummyPos,
last = ErrorMsg.dummyPos}
val ds = #func parseUr ur
in
(Source.DStr (mname, sgnO, (Source.StrConst ds, loc)), loc)
end
val ds = map parseOne fnames
in
let
val final = nameOf (List.last fnames)
val ds = ds @ [(Source.DExport (Source.StrVar final, ErrorMsg.dummySpan), ErrorMsg.dummySpan)]
in
case database of
NONE => ds
| SOME s => (Source.DDatabase s, ErrorMsg.dummySpan) :: ds
end handle Empty => ds
end,
print = SourcePrint.p_file
}
val toParse = transform parse "parse" o toParseJob
fun libFile s = OS.Path.joinDirFile {dir = Config.libUr,
file = s}
fun clibFile s = OS.Path.joinDirFile {dir = Config.libC,
file = s}
val elaborate = {
func = fn file => let
val basis = #func parseUrs (libFile "basis.urs")
val topSgn = #func parseUrs (libFile "top.urs")
val topStr = #func parseUr (libFile "top.ur")
in
Elaborate.elabFile basis topStr topSgn ElabEnv.empty file
end,
print = ElabPrint.p_file ElabEnv.empty
}
val toElaborate = transform elaborate "elaborate" o toParse
val termination = {
func = (fn file => (Termination.check file; file)),
print = ElabPrint.p_file ElabEnv.empty
}
val toTermination = transform termination "termination" o toElaborate
val explify = {
func = Explify.explify,
print = ExplPrint.p_file ExplEnv.empty
}
val toExplify = transform explify "explify" o toTermination
val corify = {
func = Corify.corify,
print = CorePrint.p_file CoreEnv.empty
}
val toCorify = transform corify "corify" o toExplify
val shake = {
func = Shake.shake,
print = CorePrint.p_file CoreEnv.empty
}
val toShake1 = transform shake "shake1" o toCorify
val tag = {
func = Tag.tag,
print = CorePrint.p_file CoreEnv.empty
}
val toTag = transform tag "tag" o toShake1
val reduce = {
func = Reduce.reduce,
print = CorePrint.p_file CoreEnv.empty
}
val toReduce = transform reduce "reduce" o toTag
val unpoly = {
func = Unpoly.unpoly,
print = CorePrint.p_file CoreEnv.empty
}
val toUnpoly = transform unpoly "unpoly" o toReduce
val specialize = {
func = Specialize.specialize,
print = CorePrint.p_file CoreEnv.empty
}
val toSpecialize = transform specialize "specialize" o toUnpoly
val toShake2 = transform shake "shake2" o toSpecialize
val monoize = {
func = Monoize.monoize CoreEnv.empty,
print = MonoPrint.p_file MonoEnv.empty
}
val toMonoize = transform monoize "monoize" o toShake2
val mono_opt = {
func = MonoOpt.optimize,
print = MonoPrint.p_file MonoEnv.empty
}
val toMono_opt1 = transform mono_opt "mono_opt1" o toMonoize
val untangle = {
func = Untangle.untangle,
print = MonoPrint.p_file MonoEnv.empty
}
val toUntangle = transform untangle "untangle" o toMono_opt1
val mono_reduce = {
func = MonoReduce.reduce,
print = MonoPrint.p_file MonoEnv.empty
}
val toMono_reduce = transform mono_reduce "mono_reduce" o toUntangle
val mono_shake = {
func = MonoShake.shake,
print = MonoPrint.p_file MonoEnv.empty
}
val toMono_shake = transform mono_shake "mono_shake1" o toMono_reduce
val toMono_opt2 = transform mono_opt "mono_opt2" o toMono_shake
val pathcheck = {
func = (fn file => (PathCheck.check file; file)),
print = MonoPrint.p_file MonoEnv.empty
}
val toPathcheck = transform pathcheck "pathcheck" o toMono_opt2
val cjrize = {
func = Cjrize.cjrize,
print = CjrPrint.p_file CjrEnv.empty
}
val toCjrize = transform cjrize "cjrize" o toPathcheck
val prepare = {
func = Prepare.prepare,
print = CjrPrint.p_file CjrEnv.empty
}
val toPrepare = transform prepare "prepare" o toCjrize
val sqlify = {
func = Cjrize.cjrize,
print = CjrPrint.p_sql CjrEnv.empty
}
val toSqlify = transform sqlify "sqlify" o toMono_opt2
fun compileC {cname, oname, ename} =
let
val urweb_o = clibFile "urweb.o"
val driver_o = clibFile "driver.o"
val compile = "gcc -Wstrict-prototypes -Werror -O3 -I include -c " ^ cname ^ " -o " ^ oname
val link = "gcc -Werror -O3 -pthread -lpq " ^ urweb_o ^ " " ^ oname ^ " " ^ driver_o ^ " -o " ^ ename
in
if not (OS.Process.isSuccess (OS.Process.system compile)) then
print "C compilation failed\n"
else if not (OS.Process.isSuccess (OS.Process.system link)) then
print "C linking failed\n"
else
print "Success\n"
end
fun compile job =
case run toPrepare job of
NONE => print "Ur compilation failed\n"
| SOME file =>
let
val job = valOf (run (transform parseUrp "parseUrp") job)
val (cname, oname, cleanup) =
if #debug job then
("/tmp/urweb.c", "/tmp/urweb.o", fn () => ())
else
let
val dir = OS.FileSys.tmpName ()
val () = OS.FileSys.remove dir
val cname = OS.Path.joinDirFile {dir = dir, file = "urweb.c"}
val oname = OS.Path.joinDirFile {dir = dir, file = "urweb.o"}
in
OS.FileSys.mkDir dir;
(cname, oname,
fn () => (OS.FileSys.remove cname;
OS.FileSys.remove oname;
OS.FileSys.rmDir dir))
end
val ename = #exe job
in
let
val outf = TextIO.openOut cname
val s = TextIOPP.openOut {dst = outf, wid = 80}
in
Print.fprint s (CjrPrint.p_file CjrEnv.empty file);
TextIO.closeOut outf;
case #sql job of
NONE => ()
| SOME sql =>
let
val outf = TextIO.openOut sql
val s = TextIOPP.openOut {dst = outf, wid = 80}
in
Print.fprint s (CjrPrint.p_sql CjrEnv.empty file);
TextIO.closeOut outf
end;
compileC {cname = cname, oname = oname, ename = ename};
cleanup ()
end
handle ex => (((cleanup ()) handle _ => ()); raise ex)
end
end
|