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lustrec / src / backends / Ada / ada_backend_common.ml @ b12a91e0

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open Format
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open Machine_code_types
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open Lustre_types
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open Corelang
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open Machine_code_common
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(** All the pretty print functions common to the ada backend **)
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(* Package pretty print functions *)
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(** Print the name of a package associated to a machine.
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   @param fmt the formater to print on
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   @param machine the machine
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*)
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let pp_package_name fmt machine =
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  fprintf fmt "%s" machine.mname.node_id
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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 delcaration.
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   @param fmt the formater to print on
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   @param fmt the formater to print on
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   @param machine the machine
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*)
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let pp_begin_package body fmt machine =
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  fprintf fmt "package %s %a is"
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    (if body then "body" else "")
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    pp_package_name machine
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(** Print the ada package conclusion sentence.
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   @param fmt the formater to print on
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   @param machine the machine
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*)
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let pp_end_package fmt machine =
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  fprintf fmt "end %a;" pp_package_name machine
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(* Variable pretty print functions *)
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(** Print the name of a variable.
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   @param fmt the formater to print on
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   @param id the variable
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*)
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let pp_var_name fmt id =
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  fprintf fmt "%s" id.var_id
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(** Print the type of a variable.
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   @param fmt the formater to print on
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   @param id the variable
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*)
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let pp_var_type fmt id = fprintf fmt
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  (match (Types.repr id.var_type).Types.tdesc with
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    | Types.Tbasic Types.Basic.Tint -> "int"
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    | Types.Tbasic Types.Basic.Treal -> "double"
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    | Types.Tbasic Types.Basic.Tbool -> "bool"
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    | _ -> eprintf "Type error : %a@." Types.print_ty id.var_type; assert false (*TODO*)
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  )
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(* Prototype pretty print functions *)
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type prototype_modifiers = In | Out
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(** Print a prototype_modifiers.
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   @param fmt the formater to print on
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   @param modifier the modifier
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*)
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let pp_prototype_modifiers fmt modifier =
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  fprintf fmt "%s" (match modifier with
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                     | In  -> "in"
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                     | Out -> "out")
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(** Print a variable declaration.
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   @param fmt the formater to print on
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   @param id the variable
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*)
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let pp_var_decl fmt id =
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  fprintf fmt "type %a is %a;"
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    pp_var_name id
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    pp_var_type id
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(** Print the parameter of a prototype, a list of modifier(eg. in or out)
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  can be given to specify the type.
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   @param modifiers list of the modifiers for this parameter
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   @param fmt the formater to print on
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   @param id the variable
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*)
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let pp_parameter modifiers fmt id =
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  fprintf fmt "%a: %a %a"
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    pp_var_name id
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    (Utils.fprintf_list ~sep:"@ " pp_prototype_modifiers) modifiers
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    pp_var_type id
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(** Print the prototype of a procedure
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   @param fmt the formater to print on
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   @param name the name of the procedure
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   @param input list of the input parameter of the procedure
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   @param output list of the output parameter of the procedure
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*)
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let pp_simple_prototype fmt (name, input, output) =
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  fprintf fmt "procedure %s(@[<v>@[%a%t%a@])@]"
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    name
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    (Utils.fprintf_list ~sep:",@ " (pp_parameter [In])) input
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    (Utils.pp_final_char_if_non_empty ",@," input)
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    (Utils.fprintf_list ~sep:",@ " (pp_parameter [Out])) output
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(** Print the prototype of the init procedure of a machine.
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   @param fmt the formater to print on
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   @param m the machine
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*)
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let pp_init_prototype fmt m =
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  pp_simple_prototype fmt ("init", m.mstatic, [])
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(** Print the prototype of the step procedure of a machine.
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   @param fmt the formater to print on
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   @param m the machine
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*)
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let pp_step_prototype fmt m =
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  pp_simple_prototype fmt ("step", m.mstep.step_inputs, m.mstep.step_outputs)
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(** Print the prototype of the reset procedure of a machine.
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   @param fmt the formater to print on
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   @param m the machine
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*)
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let pp_reset_prototype fmt m =
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  pp_simple_prototype fmt ("reset", m.mstatic, [])
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(** Print the prototype of the clear procedure of a machine.
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   @param fmt the formater to print on
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   @param m the machine
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*)
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let pp_clear_prototype fmt m =
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  pp_simple_prototype fmt ("clear", m.mstatic, [])