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Commit | Line | Data |
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1 | #!/usr/bin/perl | |
2 | use strict; | |
3 | use warnings; | |
4 | ||
5 | use Test::More tests => 31; | |
6 | BEGIN { use_ok('App::Scheme79asm::Compiler', qw/pretty_print/) }; | |
7 | ||
8 | sub is_sexp { | |
9 | my ($expr, $expected, $name) = @_; | |
10 | is pretty_print($expr), $expected, $name; | |
11 | } | |
12 | ||
13 | sub to_sexp { | |
14 | my ($string) = @_; | |
15 | scalar Data::SExpression->new({fold_lists => 0, use_symbol_class => 1})->read($string) | |
16 | } | |
17 | ||
18 | sub new { | |
19 | App::Scheme79asm::Compiler->new; | |
20 | } | |
21 | ||
22 | sub is_toplevel { | |
23 | my ($string, $expected) = @_; | |
24 | is_sexp new->process_toplevel(to_sexp $string), $expected, "process_toplevel $string"; | |
25 | is_sexp new->compile_string($string), $expected, "compile_string $string"; | |
26 | } | |
27 | ||
28 | is_sexp new->process_quoted(to_sexp '5'), '(SYMBOL 3)', 'process_quoted 5'; | |
29 | is_sexp new->process_quoted(to_sexp '()'), '(LIST 0)', 'process_quoted ()'; | |
30 | is_sexp new->process_quoted(to_sexp '(5 foo)'), '(LIST (LIST (LIST 0) (SYMBOL 3)) (SYMBOL 4))', 'process_quoted (5 foo)'; | |
31 | is_sexp new->process_quoted(to_sexp '(((5)))'), '(LIST (LIST 0) (LIST (LIST 0) (LIST (LIST 0) (SYMBOL 3))))', 'process_quoted (((5)))'; | |
32 | ||
33 | is_toplevel '()', '(LIST 0)'; | |
34 | is_toplevel 'NIL', '(LIST 0)'; | |
35 | is_toplevel 'T', '(SYMBOL 2)'; | |
36 | is_toplevel '(quote 5)', '(SYMBOL 3)'; | |
37 | is_toplevel '(reverse-list \'a \'a \'b)', '(CALL (MORE (MORE (REVERSE-LIST 0) (SYMBOL 4)) (SYMBOL 3)) (SYMBOL 3))'; | |
38 | is_toplevel '(if t \'(2 3) \'x)', '(IF (LIST (SYMBOL 5) (LIST (LIST (LIST 0) (SYMBOL 3)) (SYMBOL 4))) (SYMBOL 2))'; | |
39 | is_toplevel '(car \'(1 2))', '(CALL (CAR 0) (LIST (LIST (LIST 0) (SYMBOL 3)) (SYMBOL 4)))'; | |
40 | is_toplevel '(lambda id (x) x)', '(PROC (VAR -2))'; | |
41 | is_toplevel '((lambda id (x) x) 5)', '(CALL (MORE (FUNCALL 0) (PROC (VAR -2))) (SYMBOL 3))'; | |
42 | is_toplevel '(lambda append (x y) (if (atom x) y (cons (car x) (append (cdr x) y))))', '(PROC (IF (LIST (CALL (MORE (CONS 0) (CALL (MORE (MORE (FUNCALL 0) (VAR -1)) (VAR -2)) (CALL (CDR 0) (VAR -3)))) (CALL (CAR 0) (VAR -3))) (VAR -2)) (CALL (ATOM 0) (VAR -3))))'; | |
43 | ||
44 | sub pp_roundtrip { | |
45 | my ($string) = @_; | |
46 | my $pp = uc App::Scheme79asm::Compiler::pretty_print(to_sexp $string); | |
47 | is $pp, uc($string), "pretty_print roundtrip $string"; | |
48 | } | |
49 | ||
50 | pp_roundtrip '()'; | |
51 | pp_roundtrip 't'; | |
52 | pp_roundtrip '(lambda append (x y) (if (atom x) y (cons (car x) (append (cdr x) y))))'; | |
53 | ||
54 | sub expect_error_like (&$) { | |
55 | my ($block, $error_re) = @_; | |
56 | my $name = "test error like /$error_re/"; | |
57 | my $result = eval { $block->(); 1 }; | |
58 | if ($result) { | |
59 | note 'Block did not throw an exception, failing test'; | |
60 | fail $name; | |
61 | } else { | |
62 | like $@, qr/$error_re/, $name; | |
63 | } | |
64 | } | |
65 | ||
66 | expect_error_like { new->process_quoted([]) } 'argument to process_quoted is not a scalar, cons, or nil'; | |
67 | expect_error_like { is_toplevel 'x' } 'Variable x not in environment'; | |
68 | expect_error_like { is_toplevel '(car)' } 'Cannot call primitive car with no arguments'; |