X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=generator-macros%2Fpa_wrap.ml;h=bfe28fba82d9719b9d377a77be7302bb58228309;hb=6d0ffdb7821c34fb807ddd277c216a050a479284;hp=c8e8af897b91ed7ca16361293bae70ee16afc7e3;hpb=dd0daf1a3b75447fe5d1317e2e65e027d10e7697;p=wrappi.git diff --git a/generator-macros/pa_wrap.ml b/generator-macros/pa_wrap.ml index c8e8af8..bfe28fb 100644 --- a/generator-macros/pa_wrap.ml +++ b/generator-macros/pa_wrap.ml @@ -18,6 +18,7 @@ (* For general information about camlp4, see: * http://brion.inria.fr/gallium/index.php/Camlp4 + * * For information about quotations, see: * http://brion.inria.fr/gallium/index.php/Quotation *) @@ -28,15 +29,98 @@ open Ast open Wrappi_types -let add_entry_point _loc name parameters return_type code = - (* XXX *) - <:str_item< >> +(* Convert a plain list into a list AST. *) +let rec expr_of_list _loc = function + | [] -> <:expr< [] >> + | h::t -> let t = expr_of_list _loc t in <:expr< $h$ :: $t$ >> + +(* Convert an optional type into an option AST. *) +let expr_of_option _loc = function + | None -> <:expr< None >> + | Some x -> <:expr< Some $x$ >> + +(* Convert a _loc to an AST. *) +let expr_of_loc _loc loc = + let file_name, + start_line, start_bol, start_off, + stop_line, stop_bol, stop_off, + ghost = Loc.to_tuple loc in + <:expr< Camlp4.PreCast.Loc.of_tuple + ($str:file_name$, + $`int:start_line$, $`int:start_bol$, $`int:start_off$, + $`int:stop_line$, $`int:stop_bol$, $`int:stop_off$, + $`bool:ghost$) >> + +let add_entry_point _loc local name parameters rtype code includes = + let loc = expr_of_loc _loc _loc in + + let local = + match local with None -> <:expr< false >> | _ -> <:expr< true >> in + + let parameters = List.map ( + fun (name, t) -> <:expr< ($str:name$, $t$, None) >> + ) parameters in + let parameters = expr_of_list _loc parameters in + + let code = expr_of_option _loc code in + + let includes = match includes with None -> <:expr< [] >> | Some xs -> xs in + + <:str_item< + let ep = { Wrappi_types.ep_loc = $loc$; + ep_local = $local$; + ep_name = $str:name$; + ep_ftype = ($rtype$, $parameters$, []); + ep_code = $code$; + ep_includes = $includes$ } in + Wrappi_accumulator.add_entry_point ep + >> + +let add_typedef _loc name t = + let loc = expr_of_loc _loc _loc in + + <:str_item< + let td = { Wrappi_types.td_loc = $loc$; + td_name = $str:name$; + td_type = $t$ } in + Wrappi_accumulator.add_typedef td + >> + +let add_enum _loc name identifiers = + let loc = expr_of_loc _loc _loc in + + <:str_item< + let en = { Wrappi_types.en_loc = $loc$; + en_name = $str:name$; + en_identifiers = Array.of_list $identifiers$ } in + Wrappi_accumulator.add_enum en + >> + +let add_struct _loc name fields = + let loc = expr_of_loc _loc _loc in + + let fields = List.map ( + fun (name, t) -> <:expr< ($str:name$, $t$) >> + ) fields in + let fields = expr_of_list _loc fields in + + <:str_item< + let sd = { Wrappi_types.sd_loc = $loc$; + sd_name = $str:name$; + sd_fields = Array.of_list $fields$ } in + Wrappi_accumulator.add_struct sd + >> let () = (* Quotation expander for C code. *) let c_quotation_expander _loc _ code = + let loc = expr_of_loc _loc _loc in + (* XXX Expand %- or $- expressions in code. *) - ExStr (_loc, code) + (* XXX Escape >> in code. *) + + <:expr< { Wrappi_types.cc_loc = $loc$; + cc_code = $str:code$ } >> in Quotation.add "c" Quotation.DynAst.expr_tag c_quotation_expander; @@ -50,27 +134,61 @@ EXTEND Gram GLOBAL: str_item; (* A parameter or return type. *) - any_type: [ - [ "int32" -> TInt32 ] - | [ "int64" -> TInt64 ] - | [ t = LIDENT -> Type t ] + ptype: [ + [ "bool" -> <:expr< Wrappi_types.TBool >> ] + | [ "buffer" -> <:expr< Wrappi_types.TBuffer >> ] + | [ "enum"; name = LIDENT -> <:expr< Wrappi_types.TEnum $str:name$ >> ] + | [ "file" -> <:expr< Wrappi_types.TFile >> ] + | [ "hash"; "("; t = ptype; ")" -> <:expr< Wrappi_types.THash $t$ >> ] + | [ "int" -> <:expr< Wrappi_types.TInt >> ] + | [ "int32" -> <:expr< Wrappi_types.TInt32 >> ] + | [ "int64" -> <:expr< Wrappi_types.TInt64 >> ] + | [ "list"; "("; t = ptype; ")" -> <:expr< Wrappi_types.TList $t$ >> ] + | [ "nullable"; "("; t = ptype; ")" -> <:expr< Wrappi_types.TNullable $t$ >> ] + | [ "string" -> <:expr< Wrappi_types.TString >> ] + | [ "struct"; name = LIDENT -> <:expr< Wrappi_types.TStruct $str:name$ >> ] + | [ "uint32" -> <:expr< Wrappi_types.TUInt32 >> ] + | [ "uint64" -> <:expr< Wrappi_types.TUInt64 >> ] + | [ "union"; name = LIDENT -> <:expr< Wrappi_types.TUnion $str:name$ >> ] + | [ name = LIDENT -> <:expr< Wrappi_types.TTypedef $str:name$ >> ] ]; (* A return type. *) - return_type: [ - [ "err" -> RErr ] - | [ t = any_type -> Return t ] + rtype: [ + [ "void" -> <:expr< Wrappi_types.RVoid >> ] + | [ "static_string" -> <:expr< Wrappi_types.RStaticString >> ] + | [ t = ptype -> <:expr< Wrappi_types.Return $t$ >> ] ]; - (* A single function parameter. *) - parameter: [[ t = any_type; name = LIDENT -> (t, name) ]]; + (* A single function parameter. XXX Preconditions. *) + parameter: [[ t = ptype; name = LIDENT -> (name, t) ]]; + + (* A single struct field. XXX Preconditions. *) + struct_field: [[ t = ptype; name = LIDENT -> (name, t) ]]; str_item: LEVEL "top" [ [ "entry_point"; - return_type = return_type; name = LIDENT; + local = OPT "local"; + rtype = rtype; name = LIDENT; "("; parameters = LIST0 parameter SEP ","; ")"; - code = OPT [ code = expr -> code ] -> - add_entry_point _loc name parameters return_type code + code = OPT [ code = expr -> code ]; + includes = OPT [ "includes"; includes = expr -> includes ] + -> + add_entry_point _loc local name parameters rtype code includes + ] + + | [ "enum"; name = LIDENT; identifiers = expr -> + add_enum _loc name identifiers + ] + + | [ "struct"; name = LIDENT; "{"; + fields = LIST0 struct_field SEP ";"; + "}" -> + add_struct _loc name fields + ] + + | [ "typedef"; t = ptype; name = LIDENT -> + add_typedef _loc name t ] ];