ocarina-backends.ads

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--                           OCARINA COMPONENTS                             --
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--  This package is the root of all the source code generators of
--  Ocarina. It provides routines to register and select a code
--  generators. All the code generators should be implemented as child
--  packages of Ocarina.Backends. All the calls to these generators
--  have to be done through the procedure Generate exported by this
--  package. After selecting the wanted code generator.

with Ocarina.Types; use Ocarina.Types;

package Ocarina.Backends is

   type Backend_Subprogram is access procedure (Instance : Node_Id);
   --  Each code generator has to define such a subprogram. Instance
   --  is the root of the AADL instance tree from which the user wants
   --  to generate the code.

   type Backend_Kind is
     (Invalid_Backend,
      AADL,
      AADL_Min,
      AADL_Annex,
      AADLXML,
      ASN1_Deployment,
      Behavior_PP,
      Bound_T,
      Carts_XML,
      Cheddar_XML,
      Deos_XML,
      Connection_Matrix_Analysis,
      Functions_Matrix_Analysis,
      MAST_Scheduling,
      Petri_Nets,
      PolyORB_HI_Ada,
      PolyORB_HI_C,
      PolyORB_HI_RTSJ,
      PolyORB_Kernel_C,
      Statistics,
      Subprograms_Generator,
      Xtratum_Configuration,
      REAL_PP,
      REAL_Theorem,
      Alloy_Backend);
   --  Supported code generators. For each kind, at most one generator
   --  must be implemented.

   procedure Register_Backend
     (Name    : String;
      Process : Backend_Subprogram;
      Kind    : Backend_Kind);
   --  Register a new backend.

   function Get_Current_Backend_Kind return Backend_Kind;
   procedure Set_Current_Backend_Name (Name : String);
   function Get_Current_Backend_Name return Name_Id;

   procedure Generate_Code (Root : Node_Id; Backend_Name : Name_Id := No_Name);
   --  Call the backend name if it is set or the current backend name
   --  set in the command line. If the backend name and the current
   --  backend name are set, backend name has the priority.

   procedure Init;
   --  Initialize the Backends module by registering the several
   --  implemented code generators.

   procedure Reset;
   --  Resets the Backends module by resetting the node entries of
   --  the several trees.

   procedure Usage;
   --  Print usage for all registered backends

end Ocarina.Backends;