xref: /openbsd-src/gnu/usr.bin/perl/t/comp/parser_run.t (revision f2a19305cfc49ea4d1a5feb55cd6c283c6f1e031)

#!./perl

# Parser tests that want test.pl, eg to use runperl() for tests to show
# reads through invalid pointers.
# Note that this should still be runnable under miniperl.

BEGIN {
    chdir 't' if -d 't';
    require './test.pl';
    set_up_inc( qw(. ../lib ) );
}

plan(70);

# [perl #130814] can reallocate lineptr while looking ahead for
# "Missing $ on loop variable" diagnostic.
my $result = fresh_perl(
    " foreach my\n\$" . ("v" x 0x2000),
    { stderr => 1 },
);
is($result . "\n", <<EXPECT);
Identifier too long at - line 2.
EXPECT

for my $var ('$00','${00}','$001','${001}','$01','${01}','$09324', '${09324}') {
    for my $utf8 ("","use utf8;") {
        for my $strict ("","use strict;") {
            fresh_perl_is(
                "${strict}${utf8}print $var;",
                "Numeric variables with more than one digit may not start with '0' at - line 1.",
                {},
                sprintf("check %s is illegal%s%s", $var,
                    $utf8   ? " under utf8" : "",
                    $strict ? " under strict" : ""
                ),
            );
        }
    }
}

for my $var ('$0', '${0}', '$1', '${1}', '$10', '${10}', '$9324', '${9324}') {
    for my $utf8 ("","use utf8;") {
        for my $strict ("","use strict;") {
            fresh_perl_is(
                "${strict}${utf8} print '$var' if $var or !$var;",
                $var,
                {},
                sprintf("check %s is legal%s%s", $var,
                    $utf8   ? " under utf8" : "",
                    $strict ? " under strict" : ""
                )
            );
        }
    }
}


fresh_perl_is(<<EOS, <<'EXPECT', {}, "linestart before bufptr");
\${ \xB6eeeeeeeeeeee
'x
EOS
Unrecognized character \xB6; marked by <-- HERE after ${ <-- HERE near column 4 at - line 1.
EXPECT

fresh_perl_is(<<'EOS', <<'EXPECTED', {}, "use after free (#131836)");
${sub#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
EOS
Missing right curly or square bracket at - line 1, at end of line
syntax error at - line 1, at EOF
Execution of - aborted due to compilation errors.
EXPECTED

SKIP:
{
    # [perl #131949] use after free
    # detected by ASAN
    # Win32 cmd.exe can't handle newlines well
    skip("Need POSIXish", 1) if $^O eq "MSWin32";
    my $out = runperl(prog => "\@{ 0\n\n}", stderr => 1, non_portable => 1);
    is($out, "", "check for ASAN use after free");
}

fresh_perl_is('-C-', <<'EXPECTED', {}, "ambiguous unary operator check doesn't crash (#132433)");
Warning: Use of "-C-" without parentheses is ambiguous at - line 1.
syntax error at - line 1, at EOF
Execution of - aborted due to compilation errors.
EXPECTED

{
    my $work = tempfile;
    open my $fh, ">", $work or die;
    binmode $fh;
    print $fh +("\n" x 50_000), "1;\n";
    close $fh;
    fresh_perl_is('require "./' . $work .'"; print "ok\n";', "ok\n",
                  {}, "many blank lines doesn't crash");
}

__END__
# ex: set ts=8 sts=4 sw=4 et: