Commit da6d2c72d0def4fd07ed8f784d2dd94fb5d67a8f
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1 | +% == No, Emacs this is -*-Prolog-*- code, not what you thought... ============= | ||
2 | + | ||
3 | +:- initialization(main). | ||
4 | + | ||
5 | +main :- | ||
6 | + argument_list(A), | ||
7 | + main(A). | ||
8 | + | ||
9 | +main([ACTION_S|REST]) :- | ||
10 | + read_term_from_atom(ACTION_S, ACTION, [end_of_term(eof)]), | ||
11 | + action(ACTION), !, main(REST). | ||
12 | +main([]). | ||
13 | + | ||
14 | +action(load(F)) :- !, see(F), action(load), seen. | ||
15 | +action(load) :- !, load_ast(AST), g_assign(ast, AST). | ||
16 | +action(dump(A)) :- !, dump_ast(A). | ||
17 | +action(dump) :- !, g_read(ast, AST), dump_ast(AST). | ||
18 | +action(name) :- !, | ||
19 | + g_read(ast, AST), | ||
20 | + sa_names(AST, NAST, ST), | ||
21 | + g_assign(ast_n, NAST+ST). | ||
22 | +action(type) :- !, | ||
23 | + g_read(ast_n, AST+ST), | ||
24 | + sa_types(AST, ST), | ||
25 | + g_assign(ast_t, AST+ST). | ||
26 | +action(code) :- !, | ||
27 | + g_read(ast_t, AST+ST), | ||
28 | + cg_emit(AST, ST). | ||
29 | +action(halt) :- !, halt. | ||
30 | +action(debug) :- g_read(ast_debug, true), !, g_assign(ast_debug, false). | ||
31 | +action(debug) :- !, g_assign(ast_debug, true). | ||
32 | +action(ACTION) :- format("%w: unknown action.\n", [ACTION]). | ||
33 | + | ||
34 | + | ||
35 | +% ----------------------------------------------------------------------------- | ||
36 | + | ||
37 | +%% beware: fails if load_ast/3 does not finish with 3rd arg singular list | ||
38 | + | ||
39 | +load_ast(AST) :- g_read(ast_debug, true), !, load_ast_deb(_>[], [], [AST]). | ||
40 | +load_ast(AST) :- load_ast(_>[], [], [AST]). | ||
41 | + | ||
42 | +load_ast(end_of_file, AST, AST). | ||
43 | +load_ast((IN > INT :- MOD), IN, OUT) :- | ||
44 | + call(MOD), | ||
45 | + read(OP), !, | ||
46 | + load_ast(OP, INT, OUT). | ||
47 | +load_ast((IN > INT), IN, OUT) :- | ||
48 | + read(OP), !, | ||
49 | + load_ast(OP, INT, OUT). | ||
50 | + | ||
51 | +load_ast_deb(end_of_file, AST, AST). | ||
52 | +load_ast_deb((IN > INT :- MOD), IN, OUT) :- | ||
53 | + ( call(MOD) -> format("EXT OK ~q\n", [MOD]) ; | ||
54 | + format("EXT FAIL ~q\n", [MOD]), fail ), | ||
55 | + read(OP), !, | ||
56 | + writeq(IN), write('.'), nl, | ||
57 | + writeq(OP), nl, | ||
58 | + load_ast_deb(OP, INT, OUT). | ||
59 | +load_ast_deb(IN > INT, IN, OUT) :- | ||
60 | + read(OP), !, | ||
61 | + writeq(IN), write('.'), nl, | ||
62 | + writeq(OP), nl, | ||
63 | + load_ast_deb(OP, INT, OUT). | ||
64 | + | ||
65 | +% ----------------------------------------------------------------------------- | ||
66 | + | ||
67 | +dump_ast(fzn(PREDS, VARS, CONSTRS, SOLVE)) :- | ||
68 | + !, | ||
69 | + format("AST:\n", []), | ||
70 | + format(" preds:\n", []), PREDS=preds(PS), dump_list(PS), | ||
71 | + format(" vars:\n", []), VARS=vars(VS), dump_list(VS), | ||
72 | + format(" constrs:\n", []), CONSTRS=constrs(CS), dump_list(CS), | ||
73 | + format(" goal:\n ~w\n", [SOLVE]). | ||
74 | + | ||
75 | +dump_ast(AST) :- write(AST), nl. | ||
76 | + | ||
77 | +% ----------------------------------------------------------------------------- | ||
78 | + | ||
79 | +dump_list([]). | ||
80 | +dump_list([I|Is]) :- format(" ~w\n", [I]), dump_list(Is). | ||
81 | + | ||
82 | +% ----------------------------------------------------------------------------- |