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(********************************************************************)
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(* *)
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(* The LustreC compiler toolset / The LustreC Development Team *)
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(* Copyright 2012 - -- ONERA - CNRS - INPT *)
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(* *)
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(* LustreC is free software, distributed WITHOUT ANY WARRANTY *)
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(* under the terms of the GNU Lesser General Public License *)
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(* version 2.1. *)
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(* *)
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(********************************************************************)
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open Utils
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open Corelang
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open LustreSpec
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open Format
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let rec tuple_split_expr expr =
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match expr.expr_desc with
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| Expr_const _
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| Expr_ident _ -> [expr]
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| Expr_tuple elist -> elist
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| Expr_appl (id, args, r) ->
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if Basic_library.is_internal_fun id
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then
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let args_list = List.map tuple_split_expr (expr_list_of_expr args) in
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List.map
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(fun arg -> {expr with expr_tag = Utils.new_tag (); expr_desc = Expr_appl (id, expr_of_expr_list args.expr_loc arg, r) })
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(transpose_list args_list)
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else
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[expr]
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| Expr_array el ->
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let args_list = List.map tuple_split_expr el in
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List.map
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(fun arg -> {expr with expr_tag = Utils.new_tag (); expr_desc = Expr_array arg })
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(transpose_list args_list)
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| Expr_access (e1, d) ->
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List.map
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(fun e1 -> { expr with expr_tag = Utils.new_tag (); expr_desc = Expr_access (e1, d) })
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(tuple_split_expr e1)
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| Expr_power (e1, d) ->
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List.map
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(fun e1 -> { expr with expr_tag = Utils.new_tag (); expr_desc = Expr_power (e1, d) })
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(tuple_split_expr e1)
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| Expr_arrow (e1,e2) ->
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List.map2
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(fun e1 e2 -> { expr with expr_tag = Utils.new_tag (); expr_desc = Expr_arrow (e1, e2) })
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(tuple_split_expr e1)
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(tuple_split_expr e2)
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| Expr_pre e ->
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List.map
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(fun e -> { expr with expr_tag = Utils.new_tag (); expr_desc = Expr_pre e })
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(tuple_split_expr e)
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| Expr_fby (v, e) ->
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List.map
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(fun e -> { expr with expr_tag = Utils.new_tag (); expr_desc = Expr_fby (v, e) })
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(tuple_split_expr e)
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| Expr_when (e, c, l) ->
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List.map
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(fun e -> { expr with expr_tag = Utils.new_tag (); expr_desc = Expr_when (e, c, l) })
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(tuple_split_expr e)
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| Expr_ite (c, t, e) ->
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List.map2
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(fun t e -> { expr with expr_tag = Utils.new_tag (); expr_desc = Expr_ite (c, t, e) })
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(tuple_split_expr t)
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(tuple_split_expr e)
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| Expr_merge (c,hl) ->
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let tl, hl = List.split (List.map (fun (t, h) -> (t, tuple_split_expr h)) hl) in
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List.map
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(fun hl -> {expr with expr_tag = Utils.new_tag (); expr_desc = Expr_merge (c, List.combine tl hl) })
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(transpose_list hl)
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let rec tuple_split_eq eq =
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let split_rhs = tuple_split_expr eq.eq_rhs in
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if List.length split_rhs = 1
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then
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[eq]
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else
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List.map2
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(fun lhs rhs -> mkeq eq.eq_loc ([lhs], rhs))
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eq.eq_lhs
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split_rhs
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let tuple_split_eq_list eqs =
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List.fold_right (fun eq -> (@) (tuple_split_eq eq)) eqs []
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(* Local Variables: *)
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(* compile-command:"make -C .." *)
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(* End: *)
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