Annotation of /trunk/src/compiler/ast/ast-pp.sml

Parent Directory | Revision Log

---

Revision 96 - (view) (download)
Original Path: trunk/src/ast/ast-pp.sml

1 :	jhr	93	(* ast-pp.sml
2 :			*
3 :			* COPYRIGHT (c) 2010 The Diderot Project (http://diderot.cs.uchicago.edu)
4 :			* All rights reserved.
5 :	jhr	96	*
6 :			* Pretty printing for the AST representation.
7 :	jhr	93	*)
8 :
9 :			structure ASTPP : sig
10 :
11 :			val output : TextIO.outstream * AST.program -> unit
12 :
13 :			end = struct
14 :
15 :			structure PP = TextIOPP
16 :	jhr	96	structure TU = TypeUtil
17 :	jhr	93
18 :	jhr	94	val indent = PP.Abs 2
19 :
20 :			fun ppList ppFn (left, sep, right) (ppStrm, list) = let
21 :			fun sp () = PP.space ppStrm 1
22 :			val string = PP.string ppStrm
23 :			fun pp [] = string right
24 :			| pp [x] = (ppFn(ppStrm, x); string right)
25 :			| pp (x::xs) = (ppFn(ppStrm, x); string sep; sp(); pp xs)
26 :			in
27 :			string left; pp list
28 :			end
29 :
30 :	jhr	96	(* print type arguments; we use "#" to denote differentiation arguments, "$" to denote
31 :			* shape arguments, and "%" to denote dimension arguments.
32 :			*)
33 :			fun ppTyArgs (ppStrm, mvs) = let
34 :			val string = PP.string ppStrm
35 :			fun ppTyArg (_, mv) = (case mv
36 :			of Types.TYPE tv => string(TU.toString(TU.resolve tv))
37 :			| Types.DIFF dv => string("#"^TU.diffToString(TU.resolveDiff dv))
38 :			| Types.SHAPE sv => string("$"^TU.shapeToString(TU.resolveShape sv))
39 :			| Types.DIM dv => string("%"^TU.dimToString(TU.resolveDim dv))
40 :			(* end case *))
41 :			in
42 :			ppList ppTyArg ("<", ";", ">") (ppStrm, mvs)
43 :			end
44 :
45 :	jhr	94	fun ppExp (ppStrm, e) = let
46 :			fun sp () = PP.space ppStrm 1
47 :			val string = PP.string ppStrm
48 :			fun var x = string(Var.nameOf x)
49 :			fun pp e = (case e
50 :			of AST.E_Var(x, [], _) => var x
51 :	jhr	96	| AST.E_Var(x, mvs, ty) => (var x; ppTyArgs (ppStrm, mvs))
52 :	jhr	94	| AST.E_Lit lit => string (Literal.toString lit)
53 :			| AST.E_Tuple es => ppArgs (ppStrm, es)
54 :			| AST.E_Apply(f, [], args, _) => (var f; sp(); ppArgs (ppStrm, args))
55 :			| AST.E_Apply(f, mvs, args, _) => (
56 :	jhr	96	var f; ppTyArgs (ppStrm, mvs); sp(); ppArgs (ppStrm, args))
57 :	jhr	94	| AST.E_Cons es => (
58 :			ppList ppExp ("[", ",", "]") (ppStrm, es))
59 :			| AST.E_Cond(e1, e2, e3) => (
60 :			pp e1; sp(); string "?"; sp(); pp e2; sp(); string ":"; sp(); pp e3)
61 :			(* end case *))
62 :			in
63 :			pp e
64 :			end
65 :
66 :			and ppArgs (ppStrm, args) = ppList ppExp ("(", ",", ")") (ppStrm, args)
67 :
68 :			fun ppVarDecl ppStrm (AST.VD_Decl(x, e)) = let
69 :			fun sp () = PP.space ppStrm 1
70 :			val string = PP.string ppStrm
71 :			fun var x = string(Var.nameOf x)
72 :			in
73 :			PP.openHBox ppStrm;
74 :	jhr	96	string(TU.toString(#2(Var.typeOf x))); sp(); var x;
75 :	jhr	94	sp(); string "="; sp(); ppExp(ppStrm, e); string ";";
76 :			PP.closeBox ppStrm
77 :			end
78 :
79 :			fun ppBlock (ppStrm, stms) = let
80 :			fun sp () = PP.space ppStrm 1
81 :			fun nl () = PP.newline ppStrm
82 :			val string = PP.string ppStrm
83 :			fun var x = string(Var.nameOf x)
84 :			fun ppStmt stmt = (case stmt
85 :			of AST.S_Block stms => ppBlock (ppStrm, stms)
86 :			| AST.S_Decl vdcl => (ppVarDecl ppStrm vdcl; nl())
87 :			| AST.S_IfThenElse(e, AST.S_Block stms, AST.S_Block[]) => (
88 :			PP.openHBox ppStrm;
89 :			string "if"; sp(); ppExp(ppStrm, e);
90 :			sp(); ppBlock (ppStrm, stms);
91 :			PP.closeBox ppStrm)
92 :			| AST.S_IfThenElse(e, s1, AST.S_Block[]) => (
93 :			PP.openVBox ppStrm indent;
94 :			PP.openHBox ppStrm;
95 :			string "if"; sp(); ppExp(ppStrm, e);
96 :			PP.closeBox ppStrm;
97 :			nl();
98 :			ppStmt s1;
99 :			PP.closeBox ppStrm;
100 :			nl())
101 :			| AST.S_IfThenElse(e, AST.S_Block stms1, AST.S_Block stms2) => (
102 :			PP.openHBox ppStrm;
103 :			string "if"; sp(); ppExp(ppStrm, e);
104 :			sp(); ppBlock (ppStrm, stms);
105 :			PP.closeBox ppStrm;
106 :			PP.openHBox ppStrm;
107 :			string "else"; sp(); ppBlock (ppStrm, stms);
108 :			PP.closeBox ppStrm)
109 :			| AST.S_IfThenElse(e, AST.S_Block stms1, s2) => raise Fail "FIXME"
110 :			| AST.S_IfThenElse(e, s1, AST.S_Block stms2) => raise Fail "FIXME"
111 :			| AST.S_IfThenElse(e, s1, s2) => (
112 :			PP.openVBox ppStrm indent;
113 :			PP.openHBox ppStrm;
114 :			string "if"; sp(); ppExp(ppStrm, e);
115 :			PP.closeBox ppStrm;
116 :			nl();
117 :			ppStmt s1;
118 :			PP.closeBox ppStrm;
119 :			nl();
120 :			PP.openVBox ppStrm indent;
121 :			string "else"; nl();
122 :			ppStmt s2;
123 :			PP.closeBox ppStrm;
124 :			nl())
125 :			| AST.S_Assign(x, e) => (
126 :			PP.openHBox ppStrm;
127 :			var x; sp(); string "="; sp(); ppExp(ppStrm, e); string ";";
128 :			PP.closeBox ppStrm;
129 :			nl())
130 :			| AST.S_New(actor, args) => (
131 :			PP.openHBox ppStrm;
132 :			string "new"; sp(); string(Atom.toString actor); sp();
133 :			ppArgs (ppStrm, args); string ";";
134 :			PP.closeBox ppStrm;
135 :			nl())
136 :			| AST.S_Die => (string "die;"; nl())
137 :			| AST.S_Stabilize => (string "stabilize;"; nl())
138 :			(* end case *))
139 :			in
140 :			PP.openVBox ppStrm (PP.Abs 0);
141 :			string "{"; nl();
142 :			PP.openVBox ppStrm indent;
143 :			List.app ppStmt stms;
144 :			PP.closeBox ppStrm;
145 :			string "}"; nl();
146 :			PP.closeBox ppStrm
147 :			end
148 :
149 :			fun ppActor (ppStrm, {name, params, state, methods}) = let
150 :			fun sp () = PP.space ppStrm 1
151 :			fun nl () = PP.newline ppStrm
152 :			val string = PP.string ppStrm
153 :			fun var x = string(Var.nameOf x)
154 :			fun ppMethod (AST.M_Method(name, AST.S_Block stms)) = (
155 :			nl(); string(Atom.toString name); nl(); ppBlock (ppStrm, stms))
156 :			| ppMethod (AST.M_Method(name, stm)) = (
157 :			nl(); string(Atom.toString name); nl(); ppBlock (ppStrm, [stm]))
158 :			in
159 :			PP.openHBox ppStrm;
160 :			string "actor"; sp(); string(Atom.toString name); sp();
161 :	jhr	96	ppList (fn (_, x) => (string(TU.toString(#2(Var.typeOf x))); sp(); var x))
162 :	jhr	94	("(", ",", ")") (ppStrm, params);
163 :			PP.closeBox ppStrm;
164 :			nl();
165 :			PP.openVBox ppStrm indent;
166 :			string "{";
167 :			List.app (fn vdcl => (nl(); ppVarDecl ppStrm vdcl)) state;
168 :			List.app ppMethod methods;
169 :			PP.closeBox ppStrm;
170 :			nl();
171 :			string "}"; nl()
172 :			end
173 :
174 :			fun ppDecl ppStrm = let
175 :			fun sp () = PP.space ppStrm 1
176 :			fun nl () = PP.newline ppStrm
177 :			val string = PP.string ppStrm
178 :			fun var x = string(Var.nameOf x)
179 :			in
180 :			fn AST.D_Input(x, NONE) => (
181 :			PP.openHBox ppStrm;
182 :			string "input"; sp();
183 :	jhr	96	string(TU.toString(#2(Var.typeOf x))); sp(); var x; string ";";
184 :	jhr	94	PP.closeBox ppStrm;
185 :			nl())
186 :			| AST.D_Input(x, SOME e) => (
187 :			PP.openHBox ppStrm;
188 :			string "input"; sp();
189 :	jhr	96	string(TU.toString(#2(Var.typeOf x))); sp(); var x;
190 :	jhr	94	sp(); string "="; sp(); ppExp(ppStrm, e); string ";";
191 :			PP.closeBox ppStrm;
192 :			nl())
193 :			| AST.D_Var vdcl => (ppVarDecl ppStrm vdcl; nl())
194 :			| AST.D_Actor def => ppActor (ppStrm, def)
195 :			| AST.D_InitialArray(create, iters) => (* FIXME *) ()
196 :			| AST.D_InitialCollection(create, iters) => (* FIXME *) ()
197 :			end
198 :
199 :			fun output (outS, AST.Program decls) = let
200 :	jhr	93	val ppStrm = PP.openOut {dst = outS, wid = 120}
201 :			in
202 :	jhr	94	PP.openVBox ppStrm (PP.Abs 0);
203 :			PP.string ppStrm "/* Program start */"; PP.newline ppStrm;
204 :			List.app (ppDecl ppStrm) decls;
205 :			PP.string ppStrm "/* Program end */"; PP.newline ppStrm;
206 :			PP.closeBox ppStrm;
207 :	jhr	93	PP.closeStream ppStrm
208 :			end
209 :
210 :			end

---

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