1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
(*
PRETTY PRINTER
These functions enable the dumping of an AST
Used for debugging the parser.
*)
open Parser
open Typing
open Ast
let repl_nl s =
let k = ref "" in
for i = 0 to String.length s - 1 do
if s.[i] = '\n' then
k := !k ^ "\\n"
else
k := !k ^ (String.make 1 s.[i])
done; !k
let csl f l =
List.fold_left
(fun x t -> (if x = "" then "" else x ^ ", ") ^ (f t)) "" l
(* printing AST's *)
let binop_str = function
| Equal -> "==" | NotEqual -> "!=" | Lt -> "<" | Le -> "<="
| Gt -> ">" | Ge -> ">=" | Add -> "+" | Sub -> "-" | Mul -> "*" | Div -> "/"
| Modulo -> "%" | Land -> "&&" | Lor -> "||"
let unop_str = function
| PreIncr -> "++." | PostIncr -> ".++" | PreDecr -> "--." | PostDecr -> ".--"
| Ref -> "&" | Deref -> "*" | Not -> "!" | Minus -> "-" | Plus -> "+"
let rec var_type_str = function
| T_Void -> "void" | T_Int -> "int"
| TPoint(k) -> "*" ^ (var_type_str k)
| TClass s -> s
| Typenull -> "NULL"
let rec expr_string e = match e.te_desc with
| TEInt(i) -> string_of_int i
| TENull -> "NULL"
| TEThis -> "this"
| TEIdent(i) -> i
| TEAssign(k, p) -> "(" ^ (expr_string k) ^ " = " ^ (expr_string p) ^ ")"
| TECallFun(i, f) -> i ^ "(" ^ (csl expr_string f) ^ ")"
(* ici, le second ast a changé par rapport au premier *)
| TEUnary(e, f) -> (unop_str e) ^ (expr_string f)
| TEBinary(e1, o, e2) -> "(" ^ (expr_string e1) ^ " " ^ (binop_str o) ^ " " ^ (expr_string e2) ^ ")"
| TEMember(e1, i) -> "(" ^ (expr_string e1) ^ ")@" ^ (string_of_int i)
| TENew(c, proto, arg) -> "new " ^ c.tc_name
^ (match proto with | None -> "" | Some p -> " ." ^ p.tp_unique_ident)
^ " (" ^ (csl expr_string arg) ^ ")"
| TECallVirtual(exp, pos1, pos2, args) ->
"(" ^ (expr_string exp) ^ ")@" ^ (string_of_int pos1) ^ "#" ^ (string_of_int pos2) ^ "(" ^ (csl expr_string args) ^ ")"
let rec print_stmt l x =
for i = 1 to l do print_string " " done;
match x.ts_desc with
| TSEmpty -> print_string ";\n"
| TSExpr(e) -> print_string ((expr_string e) ^ "\n")
| TSIf(e, a, b) -> print_string ("if " ^ (expr_string e) ^ "\n");
print_stmt (l+1) a;
for i = 1 to l do print_string " " done;
print_string "else\n";
print_stmt (l+1) b
| TSWhile(e, a) -> print_string ("while " ^ (expr_string e) ^ "\n");
print_stmt (l+1) a;
| TSFor(i, c, f, s) -> print_string
("for " ^
(List.fold_left (fun x k -> x ^ ", " ^ (expr_string k)) "" i) ^ "; " ^
(match c with | None -> "" | Some(a) -> expr_string a) ^ "; " ^
(List.fold_left (fun x k -> x ^ ", " ^ (expr_string k)) "" f) ^ "\n");
print_stmt (l+1) s
| TSBlock(b) -> print_block l b
| TSReturn(None) -> print_string "return\n"
| TSReturn(Some k) -> print_string ("return " ^ (expr_string k) ^ "\n")
| TSDeclare((ty,b), i) -> let addr = (if b then "&" else "") in
print_string (addr ^ i ^ " : " ^ (var_type_str ty) ^ "\n")
| TSDeclareAssignExpr((ty,b), i, e) -> let addr = (if b then "&" else "") in
print_string (addr ^ i ^ " : " ^ (var_type_str ty) ^ " = " ^ (expr_string e) ^ "\n")
| TSDeclareAssignConstructor(t, i, _, c, a) -> () (*print_string
(i ^ " : " ^ (var_type_str t) ^ " = " ^ c ^ "(" ^
(csl expr_string a) ^ ")\n")*)
| TSWriteCout(k) -> print_string ("std::cout" ^
(List.fold_left (fun x k -> x ^ " << " ^ (match k with
| TSEExpr e -> expr_string e
| TSEStr("\n") -> "std::endl"
| TSEStr s -> "\"" ^ (repl_nl s) ^ "\"")) "" k) ^ "\n")
and print_block n b =
let prefix = String.make n ' ' in
print_string (prefix ^ "{\n");
List.iter
(fun s -> print_stmt (n+1) s)
b;
print_string (prefix ^ "}\n")
let proto_str p =
(match p.tp_class with | Some c -> c ^ "::" | None -> "") ^ p.tp_name
^ " (" ^ (csl
(fun ((ty,b), i) -> let addr = (if b then "&" else "") in
addr ^ i ^ " : " ^ (var_type_str ty)
)
p.tp_args)
^ ") : " ^ (match p.tp_ret_type with | Some (ty,b) -> var_type_str ty | None -> "constructor")
^ " ." ^ p.tp_unique_ident
^ (match p.tp_virtual with | None -> "" | Some (k, l) -> " @" ^ (string_of_int k) ^ "#" ^ (string_of_int l))
let print_class_decl c =
print_string ("class " ^ c.tc_name ^ " (size : " ^ (string_of_int c.tc_size) ^ ") {\n");
print_string " members:\n";
Smap.iter (fun name (t, pos) -> print_string (" " ^ name ^ " : " ^ (var_type_str t)
^ " @" ^ (string_of_int pos) ^ "\n")) c.tc_members;
print_string " methods:\n";
List.iter(fun p -> print_string (" " ^ (proto_str p) ^ "\n")) c.tc_methods;
print_string " hier:\n";
let rec print_hier s =
print_string (" @" ^ (string_of_int s.h_pos) ^" : " ^ s.h_class ^ "\n");
List.iter
(fun (i, p) -> print_string (" #" ^ (string_of_int i) ^ ": ." ^ (p.tp_unique_ident) ^ "\n"))
s.h_vtable;
List.iter print_hier s.h_supers
in print_hier c.tc_hier;
print_string "}\n"
let print_prog p =
List.iter (function
| TDGlobal(ty,i) ->
print_string ("decl " ^ i ^ " : " ^ (var_type_str ty) ^ "\n")
| TDFunction(p,b) -> print_string (proto_str p ^"\n");
print_block 0 b
| TDClass(c) ->
print_class_decl c
)
p.prog_decls
|
