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[diderot] View of /branches/vis15/src/compiler/tree-ir/tree-global-var.sml
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View of /branches/vis15/src/compiler/tree-ir/tree-global-var.sml

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Revision 3922 - (download) (annotate)
Wed Jun 1 17:02:34 2016 UTC (3 years, 5 months ago) by jhr
File size: 1593 byte(s)
working on merge
(* tree-global-var.sml
 *
 * This code is part of the Diderot Project (http://diderot-language.cs.uchicago.edu)
 *
 * COPYRIGHT (c) 2016 The University of Chicago
 * All rights reserved.
 *)

structure TreeGlobalVar : sig

    type t = TreeIR.global_var

    val new : {
	    name : string,		(* the variable name *)
	    ty : TreeTypes.t,		(* *)
	    input : bool,		(* true for inputs *)
	    output : bool,		(* true for global outputs *)
	    varying : bool,		(* true if this variable is modified in the global update
					 * phase during execution
					 *)
	    apiTy : APITypes.t option	(* specifies external type for inputs and outputs *)
	  } -> t

    val name : t -> string

    val same : t * t -> bool

    val ty : t -> TreeTypes.t

    val apiTy : t -> APITypes.t

    val isInput : t -> bool
    val isOutput : t -> bool
    val isVarying : t -> bool

    val toString : t -> string

  end = struct

    datatype t = datatype TreeIR.global_var

    fun new {name, ty, input, output, varying, apiTy} = GV{
	    name = "gv_" ^ name,
	    ty = ty,
	    xty = apiTy,
	    input = input,
	    output = output,
	    varying = varying
	  }

    fun same (GV{name=a, ...}, GV{name=b, ...}) = (a = b)

    fun name (GV{name, ...}) = name

    fun ty (GV{ty, ...}) = ty

    fun apiTy (GV{xty = SOME ty, ...}) = ty
      | apiTy (GV{name, ...}) = raise Fail("missing API Type for global " ^ name)

    fun isInput (GV{input, ...}) = input
    fun isOutput (GV{output, ...}) = output
    fun isVarying (GV{varying, ...}) = varying

    fun toString (GV{name, ...}) = "globals." ^ name

  end

root@smlnj-gforge.cs.uchicago.edu
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