/
gen_metaop_pir.pl
175 lines (156 loc) · 4.96 KB
/
gen_metaop_pir.pl
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#!/usr/bin/perl
# Copyright (C) 2008-2009, The Perl Foundation.
# $Id$
use strict;
use warnings;
my @ops = qw(
** 1 op
* 1 op
/ 'fail' op
% 'fail' op
x 'fail' op
xx 'fail' op
min 'fail' op
max 'fail' op
+& -1 op
+< 'fail' op
+> 'fail' op
~& 'fail' op
~< 'fail' op
~> 'fail' op
?& 1 op
+ 0 op
- 0 op
~ '' op
+| 0 op
+^ 0 op
~| '' op
~^ '' op
?| 0 op
?^ 0 op
X 'list' op
!== 'False' comp
!= 'False' comp
== 'True' comp
< 'True' comp
<= 'True' comp
> 'True' comp
>= 'True' comp
~~ 'True' comp
!~~ 'False' comp
eq 'True' comp
ne 'False' comp
lt 'True' comp
le 'True' comp
gt 'True' comp
ge 'True' comp
=== 'True' comp
!=== 'False' comp
=:= 'True' comp
!=:= 'False' comp
);
my $assignfmt =
" optable.'newtok'('infix:%s=', 'equiv'=>'infix::=', 'lvalue'=>1)\n";
my $reducefmt =
" optable.'newtok'('prefix:[%s]', 'equiv'=>'infix:=')\n";
my $reversefmt =
" optable.'newtok'('infix:R%s', 'equiv'=>'infix:%s')\n";
my $hyper_no_dwim_fmt =
" optable.'newtok'(%s, 'equiv'=>'infix:%s')\n" .
" optable.'newtok'('infix:%s', 'equiv'=>'infix:%s', 'subname'=>%s)\n";
my $crossfmt =
" optable.'newtok'('infix:X%s', 'equiv'=>'infix:X')\n";
my @gtokens = ();
my @code = ();
while (@ops) {
my $opname = shift @ops;
my $identity = shift @ops;
my $op_type = shift @ops;
# Only emit assignment meta-ops for standard ops.
if ($op_type eq 'op') {
push @gtokens, sprintf( $assignfmt, $opname );
push @code, qq(
.sub 'infix:$opname='
.param pmc a
.param pmc b
.tailcall '!ASSIGNMETAOP'('$opname', a, b)
.end\n);
}
# All ops work for reductions.
push @gtokens, sprintf( $reducefmt, $opname );
my $chain = $op_type eq 'comp' ? 'CHAIN' : '';
push @code, qq(
.sub 'prefix:[$opname]'
.param pmc args :slurpy
.tailcall '!REDUCEMETAOP$chain'('$opname', $identity, args)
.end\n);
# Reverse metaops
push @gtokens, sprintf( $reversefmt, $opname, $opname );
push @code, qq(
.sub 'infix:R${opname}'
.param pmc a
.param pmc b
.tailcall 'infix:$opname'(b, a)
.end\n);
push @gtokens, sprintf( $reducefmt, "R$opname", "R$opname" );
push @code, qq(
.sub 'prefix:[R$opname]'
.param pmc args :slurpy
.tailcall '!REDUCEMETAOP$chain'('R$opname', $identity, args)
.end\n);
# Cross operators.
push @gtokens, sprintf( $crossfmt, $opname );
my $is_chaining = $op_type eq 'comp' ? 1 : 0;
push @code, qq(
.sub 'infix:X${opname}'
.param pmc args :slurpy
.tailcall '!CROSSMETAOP'('$opname', $identity, $is_chaining, args :flat)
.end\n);
# Non-dwimming hyper ops.
my $hypername = qq(unicode:"infix:\\u00ab$opname\\u00bb");
push @gtokens, sprintf($hyper_no_dwim_fmt, $hypername, $opname, ">>$opname<<", $opname, $hypername);
push @code, qq(
.sub $hypername
.param pmc a
.param pmc b
.tailcall '!HYPEROP'('$opname', a, b, 0, 0)
.end\n);
# LHS-dwimming hyper ops.
$hypername = qq(unicode:"infix:\\u00bb$opname\\u00bb");
push @gtokens, sprintf($hyper_no_dwim_fmt, $hypername, $opname, "<<$opname<<", $opname, $hypername);
push @code, qq(
.sub $hypername
.param pmc a
.param pmc b
.tailcall '!HYPEROP'('$opname', a, b, 1, 0)
.end\n);
# RHS-dwimming hyper ops.
$hypername = qq(unicode:"infix:\\u00ab$opname\\u00ab");
push @gtokens, sprintf($hyper_no_dwim_fmt, $hypername, $opname, ">>$opname>>", $opname, $hypername);
push @code, qq(
.sub $hypername
.param pmc a
.param pmc b
.tailcall '!HYPEROP'('$opname', a, b, 0, 1)
.end\n);
# Dwimming hyper ops.
$hypername = qq(unicode:"infix:\\u00bb$opname\\u00ab");
push @gtokens, sprintf($hyper_no_dwim_fmt, $hypername, $opname, "<<$opname>>", $opname, $hypername);
push @code, qq(
.sub $hypername
.param pmc a
.param pmc b
.tailcall '!HYPEROP'('$opname', a, b, 1, 1)
.end\n);
}
my $gtokens = join('', @gtokens);
print qq(
.namespace []
.sub '' :init :load
.local pmc optable
optable = get_hll_global ['Perl6';'Grammar'], '\$optable'
$gtokens
.end
);
print @code;
exit 0;