(* world.sml
 *
 * COPYRIGHT (c) 2012 The Diderot Project (http://diderot-language.cs.uchicago.edu)
 * All rights reserved.
 *)

structure World : sig

  (* create the declaration for the world type *)
    val genStruct : TargetUtil.target_desc * (CLang.ty * string) list -> CLang.decl

  (* generate code to register an error message *)
    val errorMsgAdd : CLang.exp -> CLang.stm

  end = struct

    structure CL = CLang

  (* WORLD_STRUCT_PREFIX componenets (see Diderot/world.h) *)
    val prefix = [
            (CL.T_Ptr(CL.T_Named "const char"),	"name"),
	    (CL.T_Ptr(CL.T_Named "biffMsg"),	"errors"),
            (CL.boolTy,				"verboseFlg"),
            (CL.boolTy,				"isArray"),
            (CL.uint32,				"nStrandTys"),
            (CL.T_Ptr(CL.T_Named "Strand_t"),	"strandDesc"),
            (CL.uint32,				"nAxes"),
            (CL.T_Ptr CL.uint32,		"base"),
            (CL.T_Ptr CL.uint32,		"size"),
            (CL.uint32,				"numStrands")
          ]

    fun genStruct (tgt : TargetUtil.target_desc, tgtFields) = CL.D_StructDef(
          SOME(#namespace tgt ^ "struct_world"),
          prefix @ tgtFields,
          NONE)

    fun errorMsgAdd msg =
	  CL.mkCall("biffMsgAdd", [CL.mkIndirect(CL.mkVar "wrld", "errors"), msg])

  end