t/Compiler.t

   1 #!/usr/bin/perl
   2 use strict;
   3 use warnings;
   4
   5 use Test::More tests => 11;
   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 }
  26
  27 is_sexp new->process_quoted(to_sexp '5'), '(SYMBOL 3)', 'process_quoted 5';
  28 is_sexp new->process_quoted(to_sexp '()'), '(LIST 0)', 'process_quoted ()';
  29 is_sexp new->process_quoted(to_sexp '(5 foo)'), '(LIST (LIST (LIST 0) (SYMBOL 3)) (SYMBOL 4))', 'process_quoted (5 foo)';
  30 is_sexp new->process_quoted(to_sexp '(((5)))'), '(LIST (LIST 0) (LIST (LIST 0) (LIST (LIST 0) (SYMBOL 3))))', 'process_quoted (((5)))';
  31
  32 is_toplevel '(quote 5)', '(SYMBOL 3)';
  33 is_toplevel '(if t \'(2 3) \'x)', '(IF (LIST (SYMBOL 5) (LIST (LIST (LIST 0) (SYMBOL 3)) (SYMBOL 4))) (SYMBOL 2))';
  34 is_toplevel '(car \'(1 2))', '(CALL (CAR 0) (LIST (LIST (LIST 0) (SYMBOL 3)) (SYMBOL 4)))';
  35 is_toplevel '(lambda id (x) x)', '(PROC (VAR -2))';
  36 is_toplevel '((lambda id (x) x) 5)', '(CALL (MORE (FUNCALL 0) (PROC (VAR -2))) (SYMBOL 3))';
  37 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))))';