package js_of_ocaml-compiler
Compiler from OCaml bytecode to JavaScript
Install
Dune Dependency
Authors
Maintainers
Sources
js_of_ocaml-5.9.1.tbz
sha256=68c95c60871d8e9c9a54c82f35e2ed50413bcb440f220d0b3516b2a1ee1c7307
sha512=288d68ea7a45e92375cf51c34bb1071dd26d0d8de54883f3422639561e1494ff43aa45c3d7466627fd7b5a9bb29a0c75e5744a3e7147f5d544bf2c5414083778
doc/src/js_of_ocaml-compiler/primitive.ml.html
Source file primitive.ml
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(* Js_of_ocaml compiler * http://www.ocsigen.org/js_of_ocaml/ * Copyright (C) 2010 Jérôme Vouillon * Laboratoire PPS - CNRS Université Paris Diderot * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, with linking exception; * either version 2.1 of the License, or (at your option) any later version. * * This program 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *) open! Stdlib let aliases = Hashtbl.create 17 let rec resolve nm = try resolve (Hashtbl.find aliases nm) with Not_found -> nm (****) type kind = [ `Pure | `Mutable | `Mutator ] type kind_arg = [ `Shallow_const | `Object_literal | `Const | `Mutable ] type condition = [ `If of string | `Ifnot of string ] type t = [ `Requires of string list | `Provides of string * kind * kind_arg list option | `Version of ((int -> int -> bool) * string) list | `Weakdef | `Always | `Alias of string | `Deprecated of string | condition ] let string_of_kind = function | `Pure -> "pure" | `Mutable -> "mutable" | `Mutator -> "mutator" let kinds = Hashtbl.create 37 let kind_args_tbl = Hashtbl.create 37 let arities = Hashtbl.create 37 let kind nm = try Hashtbl.find kinds (resolve nm) with Not_found -> `Mutator let kind_args nm = try Some (Hashtbl.find kind_args_tbl (resolve nm)) with Not_found -> None let arity nm = Hashtbl.find arities (resolve nm) let has_arity nm a = try Hashtbl.find arities (resolve nm) = a with Not_found -> false let is_pure nm = match nm with | "%identity" | "%direct_int_div" | "%direct_int_mod" | "%direct_int_mul" -> true | _ -> Poly.(kind nm <> `Mutator) let exists p = Hashtbl.mem kinds p let externals = ref StringSet.empty let add_external name = externals := StringSet.add name !externals let get_external () = !externals let register p k kargs arity = (match Hashtbl.find kinds (resolve p) with | exception Not_found -> () | k' when Poly.(k = k') -> () | k' -> warn "Warning: overriding the purity of the primitive %s: %s -> %s@." p (string_of_kind k') (string_of_kind k)); add_external p; (match arity with | Some a -> Hashtbl.replace arities p a | _ -> ()); (match kargs with | Some k -> Hashtbl.replace kind_args_tbl p k | _ -> ()); Hashtbl.replace kinds p k let alias nm nm' = add_external nm'; add_external nm; Hashtbl.replace aliases nm nm' let named_values = ref StringSet.empty let need_named_value s = StringSet.mem s !named_values let register_named_value s = named_values := StringSet.add s !named_values let reset () = Hashtbl.clear kinds; Hashtbl.clear kind_args_tbl; Hashtbl.clear arities; Hashtbl.clear aliases; named_values := StringSet.empty
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