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open Format
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(** Represent the possible mode for a type of a procedure parameter **)
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type parameter_mode = AdaNoMode | AdaIn | AdaOut | AdaInOut
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type kind_def =
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| AdaType
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| AdaProcedure
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| AdaFunction
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| AdaPackageDecl
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| AdaPackageBody
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type visibility = AdaNoVisibility | AdaPrivate | AdaLimitedPrivate
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type printer = Format.formatter -> unit
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type ada_with = (bool * bool * printer list * printer list) option
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type ada_var_decl = parameter_mode * printer * printer * ada_with
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type ada_local_decl =
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| AdaLocalVar of ada_var_decl
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| AdaLocalPackage of (printer * printer * (printer * printer) list)
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type def_content =
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| AdaNoContent
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| AdaPackageContent of printer
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| AdaSimpleContent of printer
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| AdaVisibilityDefinition of visibility
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| AdaProcedureContent of (ada_local_decl list list * printer list)
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| AdaRecord of ada_var_decl list list
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| AdaPackageInstanciation of (printer * (printer * printer) list)
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(** Print a parameter_mode. @param fmt the formater to print on @param mode the
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modifier **)
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let pp_parameter_mode fmt mode =
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fprintf fmt "%s"
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(match mode with
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| AdaNoMode ->
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""
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| AdaIn ->
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"in"
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| AdaOut ->
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"out"
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| AdaInOut ->
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"in out")
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let pp_kind_def fmt kind_def =
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fprintf fmt "%s"
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(match kind_def with
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| AdaType ->
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"type"
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| AdaProcedure ->
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"procedure"
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| AdaFunction ->
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"function"
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| AdaPackageDecl ->
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"package"
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| AdaPackageBody ->
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"package body")
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let pp_visibility fmt visibility =
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fprintf fmt "%s"
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(match visibility with
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| AdaNoVisibility ->
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""
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| AdaPrivate ->
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"private"
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| AdaLimitedPrivate ->
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"limited private")
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(** Print the integer type name. @param fmt the formater to print on **)
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let pp_integer_type fmt = fprintf fmt "Integer"
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(** Print the float type name. @param fmt the formater to print on **)
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let pp_float_type fmt = fprintf fmt "Float"
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(** Print the boolean type name. @param fmt the formater to print on **)
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let pp_boolean_type fmt = fprintf fmt "Boolean"
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let pp_group ~sep pp_list fmt =
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assert (pp_list != []);
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fprintf fmt "@[%a@]" (Utils.fprintf_list ~sep (fun fmt pp -> pp fmt)) pp_list
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let pp_args ~sep fmt = function
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| [] ->
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fprintf fmt ""
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| args ->
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fprintf fmt " (@[<v>%a)@]"
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(Utils.fprintf_list ~sep (fun fmt pp -> pp fmt))
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args
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let pp_block fmt pp_item_list =
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fprintf fmt "%t@[<v>%a@]%t"
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(Utils.pp_final_char_if_non_empty " " pp_item_list)
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(Utils.fprintf_list ~sep:";@," (fun fmt pp -> pp fmt))
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pp_item_list
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(Utils.pp_final_char_if_non_empty ";@," pp_item_list)
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let pp_and l fmt = fprintf fmt "(%t)" (pp_group ~sep:"@ and then " l)
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let pp_or l fmt = fprintf fmt "(%t)" (pp_group ~sep:"@ or " l)
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let pp_ada_with fmt = function
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| None ->
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fprintf fmt ""
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| Some (ghost, import, pres, posts) ->
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assert (ghost || import || pres != [] || posts != []);
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let contract = pres @ posts in
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let pp_ghost fmt =
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if not ghost then fprintf fmt ""
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else
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fprintf fmt " Ghost%t" (fun fmt ->
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if contract != [] || import then fprintf fmt ",@,"
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else fprintf fmt "")
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in
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let pp_import fmt =
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if not import then fprintf fmt ""
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else
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fprintf fmt " Import%t"
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(Utils.pp_final_char_if_non_empty ",@," contract)
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in
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let pp_aspect aspect fmt pps =
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if pps = [] then fprintf fmt ""
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else fprintf fmt "%s => %t" aspect (pp_and pps)
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in
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let pp_contract fmt =
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if contract = [] then fprintf fmt ""
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else
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let sep fmt =
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if pres != [] && posts != [] then fprintf fmt ",@,"
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else fprintf fmt ""
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in
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fprintf fmt "@, @[<v>%a%t%a@]" (pp_aspect "Pre") pres sep
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(pp_aspect "Post") posts
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in
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fprintf fmt " with%t%t%t" pp_ghost pp_import pp_contract
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(** Print instanciation of a generic type in a new statement. @param fmt the
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formater to print on @param id id of the polymorphic type @param typ the new
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type **)
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let pp_generic_instanciation (pp_name, pp_type) fmt =
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fprintf fmt "%t => %t" pp_name pp_type
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(** Print a variable declaration with mode @param mode input/output mode of the
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parameter @param pp_name a format printer wich print the variable name
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@param pp_type a format printer wich print the variable type @param fmt the
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formater to print on @param id the variable **)
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let pp_var_decl (mode, pp_name, pp_type, with_statement) fmt =
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fprintf fmt "%t: %a%s%t%a" pp_name pp_parameter_mode mode
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(if mode = AdaNoMode then "" else " ")
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pp_type pp_ada_with with_statement
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let apply_var_decl_lists var_list =
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List.map (fun l -> List.map pp_var_decl l) var_list
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let pp_generic fmt = function
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| [] ->
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fprintf fmt ""
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| l ->
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fprintf fmt "generic@,%a" pp_block l
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let pp_opt intro fmt = function
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| None ->
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fprintf fmt ""
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| Some pp ->
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fprintf fmt " %s %t" intro pp
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let rec pp_local local fmt =
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match local with
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| AdaLocalVar var ->
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pp_var_decl var fmt
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| AdaLocalPackage (pp_name, pp_base_name, instanciations) ->
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pp_package_instanciation pp_name pp_base_name fmt instanciations
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and pp_content pp_name fmt = function
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| AdaNoContent ->
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fprintf fmt ""
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| AdaVisibilityDefinition visbility ->
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fprintf fmt " is %a" pp_visibility visbility
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| AdaPackageContent pp_package ->
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fprintf fmt " is@, @[<v>%t;@]@,end %t" pp_package pp_name
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| AdaSimpleContent pp_content ->
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fprintf fmt " is@, @[<v 2>(%t)@]" pp_content
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| AdaProcedureContent (local_list, pp_instr_list) ->
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fprintf fmt " is@,%abegin@,%aend %t" pp_block
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(List.map (fun l -> pp_group ~sep:";@;" (List.map pp_local l)) local_list)
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pp_block pp_instr_list pp_name
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| AdaRecord var_list ->
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assert (var_list != []);
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let pp_lists = apply_var_decl_lists var_list in
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fprintf fmt " is@, @[<v>record@, @[<v>%a@]@,end record@]" pp_block
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(List.map (pp_group ~sep:";@;") pp_lists)
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| AdaPackageInstanciation (pp_name, instanciations) ->
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fprintf fmt " is new %t%a" pp_name (pp_args ~sep:",@,")
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(List.map pp_generic_instanciation instanciations)
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and pp_def fmt
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(pp_generics, kind_def, pp_name, args, pp_type_opt, content, pp_with_opt) =
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let pp_arg_lists = apply_var_decl_lists args in
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fprintf fmt "%a%a %t%a%a%a%a" pp_generic pp_generics pp_kind_def kind_def
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pp_name (pp_args ~sep:";@,")
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(List.map (pp_group ~sep:";@,") pp_arg_lists)
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(pp_opt "return") pp_type_opt (pp_content pp_name) content pp_ada_with
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pp_with_opt
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and pp_package_instanciation pp_name pp_base_name fmt instanciations =
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pp_def fmt
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( [],
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AdaPackageDecl,
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pp_name,
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[],
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None,
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AdaPackageInstanciation (pp_base_name, instanciations),
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None )
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let pp_adastring pp_content fmt = fprintf fmt "\"%t\"" pp_content
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(** Print the ada package introduction sentence it can be used for body and
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declaration. Boolean parameter body should be true if it is a body
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delcaration. @param fmt the formater to print on @param fmt the formater to
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print on @param machine the machine **)
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let pp_package pp_name pp_generics body fmt pp_content =
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let kind = if body then AdaPackageBody else AdaPackageDecl in
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pp_def fmt
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(pp_generics, kind, pp_name, [], None, AdaPackageContent pp_content, None)
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(** Print a new statement instantiating a generic package. @param fmt the
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formater to print on @param substitutions the instanciation substitution
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@param machine the machine to instanciate **)
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(** Print a type declaration @param fmt the formater to print on @param pp_name
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a format printer which print the type name @param pp_value a format printer
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which print the type definition **)
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let pp_type_decl pp_name visibility fmt =
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let v =
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match visibility with
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| AdaNoVisibility ->
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AdaNoContent
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| _ ->
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AdaVisibilityDefinition visibility
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in
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pp_def fmt ([], AdaType, pp_name, [], None, v, None)
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let pp_record pp_name fmt var_lists =
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pp_def fmt ([], AdaType, pp_name, [], None, AdaRecord var_lists, None)
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let pp_procedure pp_name args pp_with_opt fmt content =
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pp_def fmt ([], AdaProcedure, pp_name, args, None, content, pp_with_opt)
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let pp_predicate pp_name args imported fmt content_opt =
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let content, with_st =
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match content_opt with
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| Some content ->
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AdaSimpleContent content, None
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| None ->
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AdaNoContent, Some (true, imported, [], [])
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in
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pp_def fmt
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([], AdaFunction, pp_name, args, Some pp_boolean_type, content, with_st)
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(** Print a cleaned an identifier for ada exportation : Ada names must not start
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by an underscore and must not contain a double underscore @param var name to
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be cleaned*)
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let pp_clean_ada_identifier fmt name =
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let reserved_words =
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[
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"abort";
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"else";
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"new";
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"return";
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"boolean";
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"integer";
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"abs";
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"elsif";
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"not";
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"reverse";
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"abstract";
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"end";
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"null";
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"accept";
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"entry";
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"select";
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"access";
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"exception";
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"of";
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"separate";
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"aliased";
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"exit";
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"or";
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"some";
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"all";
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"others";
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"subtype";
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"and";
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"for";
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"out";
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"synchronized";
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"array";
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"function";
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"overriding";
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"at";
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"tagged";
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"generic";
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"package";
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"task";
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"begin";
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"goto";
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"pragma";
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"terminate";
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"body";
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"private";
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"then";
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"if";
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"procedure";
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"type";
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"case";
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"in";
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"protected";
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"constant";
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"interface";
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"until";
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"is";
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"raise";
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"use";
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"declare";
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"\trange";
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"delay";
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"limited";
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"record";
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"when";
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"delta";
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"loop";
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"rem";
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"while";
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"digits";
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"renames";
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"with";
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"do";
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"mod";
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"requeue";
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"xor";
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"float";
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]
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in
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let base_size = String.length name in
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assert (base_size > 0);
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let rec remove_double_underscore s = function
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| i when i == String.length s - 1 ->
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s
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| i when String.get s i == '_' && String.get s (i + 1) == '_' ->
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remove_double_underscore
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(sprintf "%s%s" (String.sub s 0 i)
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(String.sub s (i + 1) (String.length s - i - 1)))
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i
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| i ->
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remove_double_underscore s (i + 1)
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in
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let name =
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if String.get name (base_size - 1) == '_' then name ^ "ada" else name
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in
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let name = remove_double_underscore name 0 in
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let prefix =
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if
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String.length name != base_size
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|| String.get name 0 == '_'
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|| List.exists (String.equal (String.lowercase_ascii name)) reserved_words
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then "ada"
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else ""
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in
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fprintf fmt "%s%s" prefix name
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(** Print the access of an item from an other package. @param fmt the formater
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to print on @param package the package to use @param item the item which is
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accessed **)
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let pp_package_access (pp_package, pp_item) fmt =
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fprintf fmt "%t.%t" pp_package pp_item
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let pp_with visibility fmt pp_pakage_name =
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fprintf fmt "%a with %t" pp_visibility visibility pp_pakage_name
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(** Print a one line comment with the final new line character to avoid
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commenting anything else. @param fmt the formater to print on @param s the
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comment without newline character **)
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let pp_oneline_comment fmt s =
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assert (not (String.contains s '\n'));
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fprintf fmt "-- %s@," s
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let pp_call fmt (pp_name, args) =
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fprintf fmt "%t%a" pp_name (pp_args ~sep:",@ ")
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(List.map (pp_group ~sep:",@,") args)
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(** Print the complete name of variable. @param m the machine to check if it is
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memory @param fmt the formater to print on @param var the variable **)
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let pp_access pp_state pp_var fmt = fprintf fmt "%t.%t" pp_state pp_var
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let pp_old pp fmt = fprintf fmt "%t'Old" pp
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