Home My Page Projects Code Snippets Project Openings diderot
Summary Activity Tracker Tasks SCM

SCM Repository

[diderot] Annotation of /branches/vis12/src/compiler/simplify/simple.sml
ViewVC logotype

Annotation of /branches/vis12/src/compiler/simplify/simple.sml

Parent Directory Parent Directory | Revision Log Revision Log


Revision 171 - (view) (download)
Original Path: trunk/src/compiler/simplify/simple.sml

1 : jhr 171 (* simple.sml
2 :     *
3 :     * COPYRIGHT (c) 2010 The Diderot Project (http://diderot.cs.uchicago.edu)
4 :     * All rights reserved.
5 :     *
6 :     * A simplified AST representation of a Diderot program
7 :     *)
8 :    
9 :     structure Simple =
10 :     struct
11 :    
12 :     datatype var_kind = datatype AST.var_kind
13 :    
14 :     datatype var = datatype AST.var
15 :    
16 :     datatype program = Prog of {
17 :     globals : var list,
18 :     globalInit : stmt,
19 :     actors : actor list
20 :     (* initialization *)
21 :     }
22 :    
23 :     and actor = Actor of {
24 :     params : var list,
25 :     state : var list,
26 :     stateInit : stmt,
27 :     methods : method list
28 :     }
29 :    
30 :     and method
31 :     = M_Method of Atom.atom * stmt
32 :    
33 :     and stmt
34 :     = S_Block of stmt list
35 :     | S_Assign of var * exp
36 :     | S_IfThenElse of var * stmt * stmt
37 :     | S_New of Atom.atom * var list
38 :     | S_Die
39 :     | S_Stabilize
40 :    
41 :     and exp
42 :     = E_Var of var
43 :     | E_Lit of Literal.literal
44 :     | E_Tuple of var list
45 :     | E_Apply of var * Types.meta_var list * var list * Types.ty
46 :     | E_Cons of var list
47 :    
48 :     and create = C_Create of {
49 :     argInit : stmt,
50 :     name : Atom.atom,
51 :     args : var list
52 :     }
53 :    
54 :     and iter = I_Range of {
55 :     rangeInit : stmt,
56 :     param : var,
57 :     lo : var,
58 :     hi : var
59 :     }
60 :    
61 :     fun typeOf (E_Var x) = Var.monoTypeOf x
62 :     | typeOf (E_Lit lit) = (case lit
63 :     of (Literal.Int _) => Types.T_Int
64 :     | (Literal.Float _) => Types.realTy
65 :     | (Literal.String s) => Types.T_String
66 :     | (Literal.Bool _) => Types.T_Bool
67 :     (* end case *))
68 :     | typeOf (E_Tuple _) = raise Fail "E_Tuple"
69 :     | typeOf (E_Apply(_, _, _, ty)) = ty
70 :     | typeOf (E_Cons(x::xs)) = let
71 :     val d = List.length xs + 1
72 :     val ty = Var.monoTypeOf x
73 :     in
74 :     case ty
75 :     of Types.T_Tensor shape => Types.T_Tensor(Types.shapeExt(shape, Types.DimConst d))
76 :     | _ => raise Fail "element of tensor construction not tensor"
77 :     (* end case *)
78 :     end
79 :     | typeOf (E_Cons[]) = raise Fail "impossible empty E_Cons"
80 :    
81 :     end

root@smlnj-gforge.cs.uchicago.edu
ViewVC Help
Powered by ViewVC 1.0.0