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qmlCompilers.ml
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(*
Copyright © 2011 MLstate
This file is part of OPA.
OPA is free software: you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License, version 3, as published by
the Free Software Foundation.
OPA is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
more details.
You should have received a copy of the GNU Affero General Public License
along with OPA. If not, see <http://www.gnu.org/licenses/>.
*)
(**
Common Passes for Qml Command Line compilers.
*)
(** {6 Design Notes} *)
(**
Currently, qml is still too far from opa in the framework organisation,
so we have dependencies probleme to be solved so that the options are
shared between qml passes and opa passes.
Waiting (not too long) where we will have time to continue to refactor
this, we start the passes once the options are already available, and
we have a unified dynloader function in libbsl. (todo)
*)
(* depends *)
let ( |> ) x f = f x
(* alias *)
module PH = PassHandler
(** {6 Types used} *)
(**
A dynloader is a function which take a generated loader
(like [OpabslgenLoader]), and register all bypass which its defines
somewhere, with a side effect.
@see "BslLib.BSLINTROSPECTION.ByPassMap.RegisterInterface" to see how
back-end build a value of this type
*)
type dynloader = BslPluginInterface.plugin -> unit
(**
The type of options used by qml compilers passes.
Currently, due to refactoring issues, this type is the type of
qml2ocaml options, which is bad.
TODO: use the same options than opa.exe
*)
type options = Qml2ocamlOptions.argv_options
(**
The type taken by the back-end at end of passes
*)
type env_final = {
env_bsl : BslLib.env_bsl ;
env_typer : QmlTyper.env ;
code : QmlAst.code ;
}
let extract_final_ac env = env.env_typer.QmlTypes.annotmap, env.code
let extract_final_agc env = env.env_typer.QmlTypes.annotmap, (env.env_typer.QmlTypes.gamma, env.env_typer.QmlTypes.gamma) , env.code
let extract_final_code env = env.code
let extract_final_bypass_typer env = env.env_typer.QmlTypes.bypass_typer
let extract_final_bypass_typer_code env = extract_final_bypass_typer env, extract_final_code env
(**
Get a function working on env_final from a process_code working on gamma, annotmap and code
*)
let final_sugar ~process_code =
let pass env_final =
let env_typer = env_final.env_typer in
let gamma = env_typer.QmlTypes.gamma in
let annotmap = env_typer.QmlTypes.annotmap in
let code = env_final.code in
let (gamma, annotmap), code = process_code gamma annotmap code in
{ env_final with
env_typer = { env_typer with QmlTypes.
gamma ;
annotmap ;
} ;
code ;
}
in
( pass : env_final -> env_final )
module QmlPasses :
sig
(** {6 Front passes} *)
(**
The type returned by the parser
*)
type env_parsed = {
init_code : QmlAst.code option ;
user_code : QmlAst.code ;
}
(**
Load plugins and register all bypasses
*)
val pass_BslLoading :
(options, options, dynloader, BslLib.env_bsl) PassHandler.pass
(**
Get the code (stdlib of qml, and user code).
Waiting for killing the qml-syntax, there will be a transitionnal time
during which the 2 syntax will be supported as input of qmlcompilers.
*)
val pass_Parse :
(options, options, BslLib.env_bsl, BslLib.env_bsl * env_parsed)
PassHandler.pass
(**
AlphaConv + Typing
*)
val pass_Typing :
(options, options, BslLib.env_bsl * env_parsed, env_final) PassHandler.pass
(** {6 Middle passes} *)
(** From there, the final passes have the same type *)
type final_pass = (options, options, env_final, env_final) PassHandler.pass
(** main: combine passes using PassHandler, and return the final env for the
backends *)
val main : ?dynloader:dynloader -> side:[`client|`server] -> lang:BslLanguage.t -> options -> env_final
end =
struct
module List = Base.List
type env_parsed = {
init_code : QmlAst.code option ;
user_code : QmlAst.code ;
}
type final_pass = (options, options, env_final, env_final) PassHandler.pass
(* FIXME: sharing options with more *)
open Qml2ocamlOptions
let pass_BslLoading =
let transform pass_env =
let options = pass_env.PassHandler.options in
let dynloader = pass_env.PassHandler.env in
(* FIXME : share with opa/passes.ml : pass_BSLLoading will call this function with the minimum argv_options accessed here *)
let search_path = "" :: options.extra_path in
List.iter
(fun bypass_plugin ->
let file = bypass_plugin in
let found_files =
List.filter_map
(fun p ->
let fullname = Filename.concat p file in
if File.is_regular fullname then Some fullname else None)
search_path in
let file =
match found_files with
| [] -> file
| [fullname] -> fullname
| fullname::_ ->
OManager.warning ~wclass:WarningClass.bsl_loading (
"Bypass-plugin @{<bright>%s@} found in several places.@\n"^^
"I will use @{<bright>%s@}" ) file fullname;
fullname in
OManager.verbose "load file @{<bright>%S@} (plugin)" file;
BslDynlink.loadfile_private (BslDynlink.MarshalPlugin bypass_plugin)
)
options.bypass_plugin;
(* building the loader table -- resolving the dependencies (else,
fatal error containing a message) *)
let loaders = BslPluginTable.finalize () in
(* Call always BslLib.BSL + with the dynloader in arg *)
List.iter
(fun loader ->
BslLib.BSL.RegisterInterface.dynload
loader.BslPluginInterface.dynloader ;
dynloader loader
)
loaders ;
(* building a first version the map (not compiler specific) *)
let bymap = BslLib.BSL.RegisterTable.build_bypass_map () in
let env = { BslLib. bymap = bymap ; plugins = loaders } in
let empty _ = [] in
{ pass_env with PassHandler.
env = env ;
printers = empty;
trackers = empty } in
let precond =
[
(* TODO: add pre condition *)
] in
let postcond =
[
(* TODO: add post condition *)
] in
PassHandler.make_pass ~precond ~postcond transform
(* ======================================================================= *)
let env_Parse_extract_code (_,env) = (Option.default [] env.init_code) @ env.user_code
let env_Parse_extract_ac env = (QmlAnnotMap.empty, (QmlTypes.Env.empty, QmlTypes.Env.empty), env_Parse_extract_code env)
let pass_Parse =
let transform pass_env =
let vcp = ConsoleParser.create () in
let options = pass_env.PassHandler.options in
let bsl = pass_env.PassHandler.env in
let input_string location parse_me =
try
OpaToQml.Parser.of_string ~filename: location parse_me
with
| OpaToQml.Parser.Exception e ->
OManager.error "%s -- parsing error@\n%s" location e in
let lines_foldi filename line int =
match ConsoleParser.accumulate vcp line with
| None ->
[]
| Some input -> (
match input with
| ConsoleParser.Directive _ ->
(* This qmltop directive is ignored by this compiler. *)
[]
| ConsoleParser.Code parse_me ->
let location =
Printf.sprintf
"file \"%s\"%s"
filename
(if int > 0 then Printf.sprintf " -- line %d" int else "") in
input_string location parse_me
) in
let input_file input_file =
let filename =
match input_file with
| Qml2ocamlOptions.QmlFile filename ->
OManager.error
"filename %S has suffix .qml@\nThe syntax qml is deprecated, please use opa syntax@\n" filename
| Qml2ocamlOptions.OpaFile filename -> filename in
OManager.verbose "parsing @{<bright>%S@}" filename;
ConsoleParser.reset vcp ;
let lcode = File.lines_rev_mapi (lines_foldi filename) filename in
let lcode = List.rev ((lines_foldi filename ";;" (-1))::lcode) in
List.concat lcode
in
let input_string (filename, contents) =
OManager.verbose "parsing @{<bright>%S@}" filename;
input_string filename contents in
let init_code = if options.no_stdlib then None else
Some (List.concat_map
(fun loader -> List.concat_map input_string
loader.BslPluginInterface.opa_code)
bsl.BslLib.plugins) in
let user_code =
List.concat_map input_file options.input_files in
let env = bsl,
{
init_code = init_code ;
user_code = user_code
} in
let printers = QmlTracker.printers env_Parse_extract_ac in
let trackers = QmlTracker.trackers env_Parse_extract_code in
{ pass_env with PassHandler.
env ;
printers ;
trackers ;
}
in
let precond =
[
(* TODO: add pre condition *)
] in
let postcond =
[
(* TODO: add post condition *)
] in
PassHandler.make_pass ~precond ~postcond transform
(* ============================================================================== *)
(* FIXME: it is not yet sure what we should do with exceptions / vs OManager *)
(* Some user may be keen on keeping exception instead of errors (qmltop, ide?) *)
let handle_exception_error fct =
try
fct ()
with
| (QmlTypes.Exception _ | QmlTyperException.Exception _) as exn ->
(* At this point, we do not have any environment nor annotations map. *)
OManager.error "Typer : %a"
(QmlTyperErrHandling.pp_report_from_typer_exception QmlAnnotMap.empty)
exn ;
| QmlCpsRewriter.Exception e ->
OManager.error "QmlCps : %s" (QmlCpsRewriter.error_message e)
module HighTyper = QmlTyper.DynamicallyChangeableTyper.HighTyper
let pass_Typing =
let transform pass_env =
let env_bsl, qml = pass_env.PassHandler.env in
(** construction of bypass_typer *)
let bypass_typer =
BslLib.BSL.ByPassMap.bypass_typer env_bsl.BslLib.bymap in
let env_typer =
HighTyper.initial
~bypass_typer ~explicit_instantiation: false
~value_restriction: `disabled ~exported_values_idents: IdentSet.empty
() in
let env_typer, code =
let code = Option.default [] qml.init_code @ qml.user_code in
let fct () =
(* 1°: sorting things out *)
let code_defs, code_dbfiles, code_dbdefs, code =
(* verbose "I-1) Sorting top-level nodes"; *)
let sort_user = QmlAstSort.add QmlAstSort.empty code in
let code_defs = QmlAstSort.Get.new_type sort_user
and code_dbfiles = QmlAstSort.Get.database sort_user
and code_dbdefs = QmlAstSort.Get.new_db_value sort_user
and user_code = QmlAstSort.Get.new_val sort_user
in code_defs, code_dbfiles, code_dbdefs, user_code
in
assert (code_dbfiles = []);
assert (code_dbdefs = []);
(* pre-2: dependency analysis on type definitions *)
QmlTypes.check_no_duplicate_type_defs code_defs;
(* 2°: getting type definitions into Gamma *)
let env_typer = HighTyper.fold env_typer code_defs in
(* 5°: alpha-conversion *)
let code =
let alpha = QmlAlphaConv.next () in
(* verbose "I-5) alpha-converting the code"; *)
let _, code = QmlAlphaConv.code alpha code in
code
in
(* 6°: typing *)
let env_typer = HighTyper.fold env_typer code in
env_typer, code
in
handle_exception_error fct
in
OManager.flush_errors () ;
let env =
{
env_bsl ;
env_typer ;
code ;
}
in
let printers = QmlTracker.printers extract_final_agc in
let trackers = QmlTracker.trackers extract_final_code in
{ pass_env with PassHandler.
env ;
printers ;
trackers ;
}
in
let precond =
[
(* TODO: add pre condition *)
] in
let postcond =
[
QmlAlphaConv.Check.alpha extract_final_ac
] in
PassHandler.make_pass ~precond ~postcond transform
(* ============================================================================== *)
(* FIXME: passing options around : if the type options is defined somewhere higher *)
(* Or even if a pass gives directly command arg tuple ?*)
(* need to pass some options to the pass from argv_options *)
let make_final_pass precond postcond process_code =
let transform pass_env =
let env_final = pass_env.PassHandler.env in
let env_final =
let fct () = final_sugar ~process_code env_final in
handle_exception_error fct
in
{ pass_env with PassHandler.
env = env_final ;
}
in
PassHandler.make_pass ~precond ~postcond transform
let make_final_pass_options precond postcond process_code =
let transform pass_env =
let options = pass_env.PassHandler.options in
let env_final = pass_env.PassHandler.env in
let process_code = process_code options in
let env_final =
let fct () = final_sugar ~process_code env_final in
handle_exception_error fct
in
{ pass_env with PassHandler.
env = env_final ;
}
in
PassHandler.make_pass ~precond ~postcond transform
let make_final_pass_options_env_typer precond postcond process_code =
let transform pass_env =
let options = pass_env.PassHandler.options in
let env_final = pass_env.PassHandler.env in
let env_typer = env_final.env_typer in
let env_final =
let fct () = final_sugar ~process_code:(process_code options env_typer) env_final in
handle_exception_error fct
in
{ pass_env with PassHandler.
env = env_final ;
}
in
PassHandler.make_pass ~precond ~postcond transform
let make_final_pass_bypass_typer precond postcond process_code =
let transform pass_env =
let env_final = pass_env.PassHandler.env in
let bypass_typer = env_final.env_typer.QmlTypes.bypass_typer in
let env_final =
let fct () = final_sugar ~process_code:(process_code bypass_typer) env_final in
handle_exception_error fct
in
{ pass_env with PassHandler.
env = env_final ;
}
in
PassHandler.make_pass ~precond ~postcond transform
let make_final_pass_bymap precond postcond process_code =
let transform pass_env =
let env_final = pass_env.PassHandler.env in
let bymap = env_final.env_bsl.BslLib.bymap in
let env_final =
let fct () = final_sugar ~process_code:(process_code ~bymap) env_final in
handle_exception_error fct
in
{ pass_env with PassHandler.
env = env_final ;
}
in
PassHandler.make_pass ~precond ~postcond transform
let pass_Assertion =
let process_code options gamma annotmap code =
let no_assert = options.no_assert in
let annotmap, code = Pass_Assertion.process_code ~no_assert gamma annotmap code in
(gamma, annotmap), code
in
make_final_pass_options
[]
[]
process_code
let pass_LambdaLifting side =
let precond =
[
QmlAlphaConv.Check.unicity extract_final_ac ;
] in
let postcond =
[
QmlAlphaConv.Check.alpha extract_final_ac ;
] in
make_final_pass_options precond postcond
(fun options -> Pass_LambdaLifting.process_code ~early:false ~typed:(not options.cps) ~side)
let pass_BypassHoisting =
let precond =
[
(* TODO: add pre condition *)
] in
let postcond =
[
QmlAlphaConv.Check.alpha extract_final_ac ;
] in
make_final_pass precond postcond (
fun gamma annotmap code ->
let annotmap, code = Pass_BypassApply.process_code gamma annotmap code in
(gamma, annotmap), code
)
let pass_DiscardRemoteBypasses ~lang =
let precond = [] and postcond = [] in
make_final_pass_bymap precond postcond (QmlFakeSlicer.discard_remote_bypasses ~lang)
let pass_Uncurry side =
let precond =
[
(* TODO: add pre condition *)
] in
let postcond =
[
QmlAlphaConv.Check.alpha extract_final_ac ;
] in
make_final_pass_options precond postcond
(fun options gamma annotmap code ->
let gamma_annotmap, _closure_map, code =
Pass_Uncurry.process_code
~typed:(not options.cps)
~side
gamma
annotmap
code in
gamma_annotmap, code
)
(* need bypass typer *)
let pass_Closure ~side =
let precond =
[
(* TODO: add pre condition *)
] in
let postcond =
[
QmlAlphaConv.Check.alpha extract_final_ac ;
] in
make_final_pass_options_env_typer precond postcond
(fun options env_typer ->
Pass_Closure.process_code
~typed:(not options.cps)
~side
~renaming_server:QmlRenamingMap.empty
~renaming_client:QmlRenamingMap.empty
env_typer.QmlTypes.bypass_typer)
let pass_ConstantSharing =
let transform pass_env =
let options = pass_env.PassHandler.options in
(*
Work arround : if we activate typed mode of ConstantSharing after cps,
some annot are not found because currently cps refresh annots and does
not report types.
TODO: once cps will be fixed, remove this hack, and let the pass be in typed mode.
*)
let typed = not options.cps in
let process_code = Pass_ConstantSharing.process_code ~side:`client ~typed in
let env_final = pass_env.PassHandler.env in
let env_final =
final_sugar ~process_code env_final
in
{ pass_env with PassHandler.
env = env_final ;
}
in
let precond =
[
(* TODO: add pre condition *)
] in
let postcond =
[
QmlAlphaConv.Check.alpha extract_final_ac ;
] in
PassHandler.make_pass ~precond ~postcond transform
(* ============================================================================== *)
let pass_CpsRewriter ~lang =
let transform pass_env =
let options = pass_env.PassHandler.options in
let env_final = pass_env.PassHandler.env in
let code = env_final.code in
let env_bsl = env_final.env_bsl in
let env_typer = env_final.env_typer in
let cps_options =
{ QmlCpsRewriter.default_options with QmlCpsRewriter.
no_assert = options.no_assert ;
qml_closure = options.qml_closure ;
toplevel_concurrency = options.cps_toplevel_concurrency ;
server_side = options.server_side
} in
let bsl_bypass_typer key =
match BslLib.BSL.ByPassMap.bsl_bypass_typer env_bsl.BslLib.bymap key with
| None ->
(* TODO: this must be a precondition, violation by the type checking *)
OManager.error (
"%%%% @{<bright>%s@} %%%% : unknown external primitives are not allowed@\n"^^
"Please use a plugin"
)
(BslKey.to_string key)
| Some t -> t in
let bsl_bypass_tags key =
match BslLib.BSL.ByPassMap.bsl_bypass_tags
~lang
env_bsl.BslLib.bymap key
with
| None ->
OManager.error (
"%%%% @{<bright>%s@} %%%% : unknown external primitives are not allowed@\n"^^
"Please use a plugin"
)
(BslKey.to_string key)
| Some t -> t in
let bsl_bypass_cps =
BslLib.BSL.ByPassMap.bsl_bypass_cps ~lang env_bsl.BslLib.bymap in
let env_cps =
QmlCpsRewriter.env_initial
~options:cps_options
~bsl_bypass_typer
~bsl_bypass_tags
~bsl_bypass_cps
~typing:env_typer
()
in
let code =
let fct () =
(if options.cps then QmlCpsRewriter.cps_pass ~side:`server else QmlCpsRewriter.no_cps_pass)
env_cps code
in
handle_exception_error fct in
let env_final = { env_final with code ; } in
OManager.flush_errors () ;
{ pass_env with PassHandler.
env = env_final ;
}
in
let precond =
[
] in
let postcond =
[
(*
This post condition is currently broken because of the second_order bypasses.
In bsl_ocaml_init.ml they take 1 extra argument, but the bypass_typer does not know
about it. This condition is desactivated until we solve this probleme.
QmlCheck.Bypass.applied extract;
*)
QmlAlphaConv.Check.alpha extract_final_ac ;
] in
PassHandler.make_pass ~precond ~postcond transform
let pass_RemoveTyperCrap =
let transform env =
let env_final = env.PassHandler.env in
let code = env_final.code in
let code =
QmlAstWalk.CodeExpr.map
(QmlAstWalk.Expr.map_up
(function
| QmlAst.Coerce (_, e, _) -> e
| QmlAst.Directive (_, #QmlAst.type_directive, l, _) ->
(match l with
| [e] -> e
| _ -> assert false)
| e -> e)
) code in
let env_final = { env_final with code } in
{env with PassHandler.env = env_final }
in
PassHandler.make_pass transform
(* lambda lifting can be switche on without closure, for testing *)
let if_LambdaLifting ~options _ = options.lambda_lifting || options.qml_closure
let if_Closure ~options _ = options.qml_closure
let if_ClosureServer side ~options _ = options.qml_closure && side = `server
let if_CpsRewriter ~options _ = options.cps
let if_ConstantSharing ~options _ = options.constant_sharing
let main ?(dynloader=ignore) ~side ~lang options =
ObjectFiles.no_init := true;
PassHandler.make_env options dynloader
|> PassHandler.handler "BslLoading" pass_BslLoading
|> PassHandler.handler "Parse" pass_Parse
|> PassHandler.handler "Typing" pass_Typing
|> PassHandler.handler "Assertion" pass_Assertion
(* needed by closures *)
|> PassHandler.handler "BypassHoisting" pass_BypassHoisting
|> PassHandler.handler "DiscardRemoteBypasses" (pass_DiscardRemoteBypasses ~lang)
(* This one is for testing, maybe we'll use it, and update Cps so that it does its
own lambda lifting. (wip) *)
(* |> PassHandler.if_handler ~if_:if_LambdaLifting "PreCpsLambdaLifting" pass_LambdaLifting *)
|> PassHandler.handler "CpsRewriter" (pass_CpsRewriter ~lang)
|> PassHandler.if_handler ~if_:if_LambdaLifting "LambdaLifting" (pass_LambdaLifting side)
|> PassHandler.if_handler ~if_:(if_ClosureServer side) "Uncurry" (pass_Uncurry side)
|> PassHandler.if_handler ~if_:(if_ClosureServer side) "Closure" (pass_Closure ~side)
|> PassHandler.if_handler ~if_:if_ConstantSharing "ConstantSharing" pass_ConstantSharing
|> PassHandler.handler "RemoveTyperCrap" pass_RemoveTyperCrap
|> PassHandler.return
(* See : where to apply constant sharing ? *)
(* PassHandler.handler ~if_:if_ConstantSharing "ConstantSharing" pass_ConstantSharing *)
end
(** {6 Back-end passes} *)
module Qml2jsSugar :
sig
val console : unit -> int
end
=
struct
let console () =
let options = Qml2jsOptions.Argv.parse () in
let module B = (val (Qml2jsOptions.find_backend options.Qml2jsOptions.backend) : Qml2jsOptions.JsBackend) in
if options.Qml2jsOptions.input_files = [] then 0
else
let env_final =
let dynloader = B.dynloader in
let options = Qml2jsOptions.Argv.qml2ocaml_sharing options in
QmlPasses.main ~lang:BslLanguage.js ~side:`client ~dynloader options
in
let env = PassHandler.make_env options env_final in
env
|> PassHandler.handler "JavascriptBslfilesLoading" (PassHandler.make_pass (
fun env ->
let options = env.PH.options in
let env_final = env.PH.env in
let env_bsl = env_final.env_bsl in
let generated_files, generated_ast = Qml2js.JsTreat.js_bslfilesloading options env_bsl in
PassHandler.make_env options (generated_files, generated_ast, env_final)
))
|> PassHandler.handler "JavascriptCompilation" (PassHandler.make_pass (
fun env ->
let options = env.PH.options in
let generated_files, generated_ast, env_final = env.PH.env in
let { env_bsl ; env_typer ; code } = env_final in
let renaming_client = QmlRenamingMap.empty in
let renaming_server = QmlRenamingMap.empty in
let env_js_input = B.compile options ~renaming_server ~renaming_client ~bsl:generated_ast env_bsl env_typer code in
PassHandler.make_env options (generated_files, env_js_input)
))
|> PassHandler.handler "JavascriptGeneration" (PassHandler.make_pass (
fun env ->
let options = env.PH.options in
let generated_files, env_js_input = env.PH.env in
let env_js_output = Qml2js.JsTreat.js_generation options generated_files env_js_input in
PassHandler.make_env options env_js_output
))
|> PassHandler.handler "JavascriptTreat" (PassHandler.make_pass (
fun env ->
let options = env.PH.options in
let env_js_output = env.PH.env in
let returned = Qml2js.JsTreat.js_treat options env_js_output in
PassHandler.make_env options returned
))
|> PassHandler.return
end