[p5sagit/p5-mst-13.2.git] / t / comp / parser.t

#!./perl

# Checks if the parser behaves correctly in edge cases
# (including weird syntax errors)

BEGIN {
    chdir 't' if -d 't';
    @INC = '../lib';
}

BEGIN { require "./test.pl"; }
plan( tests => 108 );

eval '%@x=0;';
like( $@, qr/^Can't modify hash dereference in repeat \(x\)/, '%@x=0' );

# Bug 20010422.005
eval q{{s//${}/; //}};
like( $@, qr/syntax error/, 'syntax error, used to dump core' );

# Bug 20010528.007
eval q/"\x{"/;
like( $@, qr/^Missing right brace on \\x/,
    'syntax error in string, used to dump core' );

eval q/"\N{"/;
like( $@, qr/^Missing right brace on \\N/,
    'syntax error in string with incomplete \N' );
eval q/"\Nfoo"/;
like( $@, qr/^Missing braces on \\N/,
    'syntax error in string with incomplete \N' );

eval "a.b.c.d.e.f;sub";
like( $@, qr/^Illegal declaration of anonymous subroutine/,
    'found by Markov chain stress testing' );

# Bug 20010831.001
eval '($a, b) = (1, 2);';
like( $@, qr/^Can't modify constant item in list assignment/,
    'bareword in list assignment' );

eval 'tie FOO, "Foo";';
like( $@, qr/^Can't modify constant item in tie /,
    'tying a bareword causes a segfault in 5.6.1' );

eval 'undef foo';
like( $@, qr/^Can't modify constant item in undef operator /,
    'undefing constant causes a segfault in 5.6.1 [ID 20010906.019]' );

eval 'read($bla, FILE, 1);';
like( $@, qr/^Can't modify constant item in read /,
    'read($var, FILE, 1) segfaults on 5.6.1 [ID 20011025.054]' );

# This used to dump core (bug #17920)
eval q{ sub { sub { f1(f2();); my($a,$b,$c) } } };
like( $@, qr/error/, 'lexical block discarded by yacc' );

# bug #18573, used to corrupt memory
eval q{ "\c" };
like( $@, qr/^Missing control char name in \\c/, q("\c" string) );

eval q{ qq(foo$) };
like( $@, qr/Final \$ should be \\\$ or \$name/, q($ at end of "" string) );

# two tests for memory corruption problems in the said variables
# (used to dump core or produce strange results)

is( "\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Qa", "a", "PL_lex_casestack" );

eval {
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
};
is( $@, '', 'PL_lex_brackstack' );

{
    # tests for bug #20716
    undef $a;
    undef @b;
    my $a="A";
    is("${a}{", "A{", "interpolation, qq//");
    is("${a}[", "A[", "interpolation, qq//");
    my @b=("B");
    is("@{b}{", "B{", "interpolation, qq//");
    is(qr/${a}{/, '(?-xism:A{)', "interpolation, qr//");
    my $c = "A{";
    $c =~ /${a}{/;
    is($&, 'A{', "interpolation, m//");
    $c =~ s/${a}{/foo/;
    is($c, 'foo', "interpolation, s/...//");
    $c =~ s/foo/${a}{/;
    is($c, 'A{', "interpolation, s//.../");
    is(<<"${a}{", "A{ A[ B{\n", "interpolation, here doc");
${a}{ ${a}[ @{b}{
${a}{
}

eval q{ sub a(;; &) { } a { } };
is($@, '', "';&' sub prototype confuses the lexer");

# Bug #21575
# ensure that the second print statement works, by playing a bit
# with the test output.
my %data = ( foo => "\n" );
print "#";
print(
$data{foo});
pass();

# Bug #21875
# { q.* => ... } should be interpreted as hash, not block

foreach my $line (split /\n/, <<'EOF')
1 { foo => 'bar' }
1 { qoo => 'bar' }
1 { q   => 'bar' }
1 { qq  => 'bar' }
0 { q,'bar', }
0 { q=bar= }
0 { qq=bar= }
1 { q=bar= => 'bar' }
EOF
{
    my ($expect, $eval) = split / /, $line, 2;
    my $result = eval $eval;
    ok($@ eq  '', "eval $eval");
    is(ref $result, $expect ? 'HASH' : '', $eval);
}

# Bug #24212
{
    local $SIG{__WARN__} = sub { }; # silence mandatory warning
    eval q{ my $x = -F 1; };
    like( $@, qr/(?i:syntax|parse) error .* near "F 1"/, "unknown filetest operators" );
    is(
        eval q{ sub F { 42 } -F 1 },
	'-42',
	'-F calls the F function'
    );
}

# Bug #24762
{
    eval q{ *foo{CODE} ? 1 : 0 };
    is( $@, '', "glob subscript in conditional" );
}

# Bug #25824
{
    eval q{ sub f { @a=@b=@c;  {use} } };
    like( $@, qr/syntax error/, "use without body" );
}

# Bug #27024
{
    # this used to segfault (because $[=1 is optimized away to a null block)
    my $x;
    $[ = 1 while $x;
    pass();
    $[ = 0; # restore the original value for less side-effects
}

# [perl #2738] perl segfautls on input
{
    eval q{ sub _ <> {} };
    like($@, qr/Illegal declaration of subroutine main::_/, "readline operator as prototype");

    eval q{ $s = sub <> {} };
    like($@, qr/Illegal declaration of anonymous subroutine/, "readline operator as prototype");

    eval q{ sub _ __FILE__ {} };
    like($@, qr/Illegal declaration of subroutine main::_/, "__FILE__ as prototype");
}

# [perl #36313] perl -e "1for$[=0" crash
{
    my $x;
    $x = 1 for ($[) = 0;
    pass('optimized assignment to $[ used to segfault in list context');
    if ($[ = 0) { $x = 1 }
    pass('optimized assignment to $[ used to segfault in scalar context');
    $x = ($[=2.4);
    is($x, 2, 'scalar assignment to $[ behaves like other variables');
    $x = (($[) = 0);
    is($x, 1, 'list assignment to $[ behaves like other variables');
    $x = eval q{ ($[, $x) = (0) };
    like($@, qr/That use of \$\[ is unsupported/,
             'cannot assign to $[ in a list');
    eval q{ ($[) = (0, 1) };
    like($@, qr/That use of \$\[ is unsupported/,
             'cannot assign list of >1 elements to $[');
    eval q{ ($[) = () };
    like($@, qr/That use of \$\[ is unsupported/,
             'cannot assign list of <1 elements to $[');
}

# tests for "Bad name"
eval q{ foo::$bar };
like( $@, qr/Bad name after foo::/, 'Bad name after foo::' );
eval q{ foo''bar };
like( $@, qr/Bad name after foo'/, 'Bad name after foo\'' );

# test for ?: context error
eval q{($a ? $x : ($y)) = 5};
like( $@, qr/Assignment to both a list and a scalar/, 'Assignment to both a list and a scalar' );

eval q{ s/x/#/e };
is( $@, '', 'comments in s///e' );

# these five used to coredump because the op cleanup on parse error could
# be to the wrong pad

eval q[
    sub { our $a= 1;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;
	    sub { my $z
];

like($@, qr/Missing right curly/, 'nested sub syntax error' );

eval q[
    sub { my ($a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n,$o,$p,$q,$r,$s,$r);
	    sub { my $z
];
like($@, qr/Missing right curly/, 'nested sub syntax error 2' );

eval q[
    sub { our $a= 1;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;
	    use DieDieDie;
];

like($@, qr/Can't locate DieDieDie.pm/, 'croak cleanup' );

eval q[
    sub { my ($a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n,$o,$p,$q,$r,$s,$r);
	    use DieDieDie;
];

like($@, qr/Can't locate DieDieDie.pm/, 'croak cleanup 2' );


eval q[
    my @a;
    my ($a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n,$o,$p,$q,$r,$s,$r);
    @a =~ s/a/b/; # compile-time error
    use DieDieDie;
];

like($@, qr/Can't modify/, 'croak cleanup 3' );

# these might leak, or have duplicate frees, depending on the bugginess of
# the parser stack 'fail in reduce' cleanup code. They're here mainly as
# something to be run under valgrind, with PERL_DESTRUCT_LEVEL=1.

eval q[ BEGIN { } ] for 1..10;
is($@, "", 'BEGIN 1' );

eval q[ BEGIN { my $x; $x = 1 } ] for 1..10;
is($@, "", 'BEGIN 2' );

eval q[ BEGIN { \&foo1 } ] for 1..10;
is($@, "", 'BEGIN 3' );

eval q[ sub foo2 { } ] for 1..10;
is($@, "", 'BEGIN 4' );

eval q[ sub foo3 { my $x; $x=1 } ] for 1..10;
is($@, "", 'BEGIN 5' );

eval q[ BEGIN { die } ] for 1..10;
like($@, qr/BEGIN failed--compilation aborted/, 'BEGIN 6' );

eval q[ BEGIN {\&foo4; die } ] for 1..10;
like($@, qr/BEGIN failed--compilation aborted/, 'BEGIN 7' );

# Add new tests HERE:

# More awkward tests for #line. Keep these at the end, as they will screw
# with sane line reporting for any other test failures

sub check ($$$) {
    my ($file, $line, $name) =  @_;
    my (undef, $got_file, $got_line) = caller;
    like ($got_file, $file, "file of $name");
    is ($got_line, $line, "line of $name");
}

#line 3
check(qr/parser\.t$/, 3, "bare line");

# line 5
check(qr/parser\.t$/, 5, "bare line with leading space");

#line 7 
check(qr/parser\.t$/, 7, "trailing space still valid");

# line 11 
check(qr/parser\.t$/, 11, "leading and trailing");

#	line 13
check(qr/parser\.t$/, 13, "leading tab");

#line	17
check(qr/parser\.t$/, 17, "middle tab");

#line                                                                        19
check(qr/parser\.t$/, 19, "loadsaspaces");

#line 23 KASHPRITZA
check(qr/^KASHPRITZA$/, 23, "bare filename");

#line 29 "KAHEEEE"
check(qr/^KAHEEEE$/, 29, "filename in quotes");

#line 31 "CLINK CLOINK BZZT"
check(qr/^CLINK CLOINK BZZT$/, 31, "filename with spaces in quotes");

#line 37 "THOOM	THOOM"
check(qr/^THOOM	THOOM$/, 37, "filename with tabs in quotes");

#line 41 "GLINK PLINK GLUNK DINK" 
check(qr/^GLINK PLINK GLUNK DINK$/, 41, "a space after the quotes");

#line 43 "BBFRPRAFPGHPP
check(qr/^"BBFRPRAFPGHPP$/, 43, "actually missing a quote is still valid");

#line 47 bang eth
check(qr/^"BBFRPRAFPGHPP$/, 46, "but spaces aren't allowed without quotes");

eval <<'EOSTANZA'; die $@ if $@;
#line 51 "With wonderful deathless ditties|We build up the world's great cities,|And out of a fabulous story|We fashion an empire's glory:|One man with a dream, at pleasure,|Shall go forth and conquer a crown;|And three with a new song's measure|Can trample a kingdom down."
check(qr/^With.*down\.$/, 51, "Overflow the second small buffer check");
EOSTANZA

# And now, turn on the debugger flag for long names
$^P = 0x100;

#line 53 "For we are afar with the dawning|And the suns that are not yet high,|And out of the infinite morning|Intrepid you hear us cry-|How, spite of your human scorning,|Once more God's future draws nigh,|And already goes forth the warning|That ye of the past must die."
check(qr/^For we.*must die\.$/, 53, "Our long line is set up");

eval <<'EOT'; die $@ if $@;
#line 59 " "
check(qr/^ $/, 59, "Overflow the first small buffer check only");
EOT

eval <<'EOSTANZA'; die $@ if $@;
#line 61 "Great hail! we cry to the comers|From the dazzling unknown shore;|Bring us hither your sun and your summers;|And renew our world as of yore;|You shall teach us your song's new numbers,|And things that we dreamed not before:|Yea, in spite of a dreamer who slumbers,|And a singer who sings no more."
check(qr/^Great hail!.*no more\.$/, 61, "Overflow both small buffer checks");
EOSTANZA

__END__
# Don't add new tests HERE. See note above
Commit	Line	Data
923be969	1	#!./perl
	2
	3	# Checks if the parser behaves correctly in edge cases
	4	# (including weird syntax errors)
	5
	6	BEGIN {
	7	chdir 't' if -d 't';
	8	@INC = '../lib';
	9	}
	10
768fd157	11	BEGIN { require "./test.pl"; }
44867030	12	plan( tests => 108 );
f15b33d3	13
	14	eval '%@x=0;';
	15	like( $@, qr/^Can't modify hash dereference in repeat \(x\)/, '%@x=0' );
	16
	17	# Bug 20010422.005
	18	eval q{{s//${}/; //}};
	19	like( $@, qr/syntax error/, 'syntax error, used to dump core' );
	20
	21	# Bug 20010528.007
	22	eval q/"\x{"/;
	23	like( $@, qr/^Missing right brace on \\x/,
	24	'syntax error in string, used to dump core' );
	25
fd7808cb	26	eval q/"\N{"/;
	27	like( $@, qr/^Missing right brace on \\N/,
	28	'syntax error in string with incomplete \N' );
	29	eval q/"\Nfoo"/;
	30	like( $@, qr/^Missing braces on \\N/,
	31	'syntax error in string with incomplete \N' );
	32
f15b33d3	33	eval "a.b.c.d.e.f;sub";
	34	like( $@, qr/^Illegal declaration of anonymous subroutine/,
	35	'found by Markov chain stress testing' );
	36
	37	# Bug 20010831.001
	38	eval '($a, b) = (1, 2);';
	39	like( $@, qr/^Can't modify constant item in list assignment/,
	40	'bareword in list assignment' );
	41
	42	eval 'tie FOO, "Foo";';
	43	like( $@, qr/^Can't modify constant item in tie /,
	44	'tying a bareword causes a segfault in 5.6.1' );
	45
	46	eval 'undef foo';
	47	like( $@, qr/^Can't modify constant item in undef operator /,
	48	'undefing constant causes a segfault in 5.6.1 [ID 20010906.019]' );
	49
	50	eval 'read($bla, FILE, 1);';
	51	like( $@, qr/^Can't modify constant item in read /,
	52	'read($var, FILE, 1) segfaults on 5.6.1 [ID 20011025.054]' );
923be969	53
	54	# This used to dump core (bug #17920)
	55	eval q{ sub { sub { f1(f2();); my($a,$b,$c) } } };
f15b33d3	56	like( $@, qr/error/, 'lexical block discarded by yacc' );
961ce445	57
	58	# bug #18573, used to corrupt memory
	59	eval q{ "\c" };
	60	like( $@, qr/^Missing control char name in \\c/, q("\c" string) );
8edd5f42	61
a40a317b	62	eval q{ qq(foo$) };
	63	like( $@, qr/Final \$ should be \\\$ or \$name/, q($ at end of "" string) );
	64
8edd5f42	65	# two tests for memory corruption problems in the said variables
	66	# (used to dump core or produce strange results)
	67
	68	is( "\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Qa", "a", "PL_lex_casestack" );
	69
	70	eval {
	71	{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
	72	{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
	73	{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
	74	}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
	75	}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
	76	}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
	77	};
	78	is( $@, '', 'PL_lex_brackstack' );
437fd210	79
437fd210	80	{
7df0d042	81	# tests for bug #20716
	82	undef $a;
	83	undef @b;
	84	my $a="A";
	85	is("${a}{", "A{", "interpolation, qq//");
	86	is("${a}[", "A[", "interpolation, qq//");
	87	my @b=("B");
	88	is("@{b}{", "B{", "interpolation, qq//");
	89	is(qr/${a}{/, '(?-xism:A{)', "interpolation, qr//");
	90	my $c = "A{";
	91	$c =~ /${a}{/;
	92	is($&, 'A{', "interpolation, m//");
	93	$c =~ s/${a}{/foo/;
	94	is($c, 'foo', "interpolation, s/...//");
	95	$c =~ s/foo/${a}{/;
	96	is($c, 'A{', "interpolation, s//.../");
	97	is(<<"${a}{", "A{ A[ B{\n", "interpolation, here doc");
	98	${a}{ ${a}[ @{b}{
	99	${a}{
437fd210	100	}
4a202259	101
0f5d0394	102	eval q{ sub a(;; &) { } a { } };
	103	is($@, '', "';&' sub prototype confuses the lexer");
	104
4a202259	105	# Bug #21575
	106	# ensure that the second print statement works, by playing a bit
	107	# with the test output.
	108	my %data = ( foo => "\n" );
	109	print "#";
	110	print(
	111	$data{foo});
	112	pass();
abc667d1	113
	114	# Bug #21875
	115	# { q.* => ... } should be interpreted as hash, not block
	116
	117	foreach my $line (split /\n/, <<'EOF')
	118	1 { foo => 'bar' }
	119	1 { qoo => 'bar' }
	120	1 { q => 'bar' }
	121	1 { qq => 'bar' }
	122	0 { q,'bar', }
	123	0 { q=bar= }
	124	0 { qq=bar= }
	125	1 { q=bar= => 'bar' }
	126	EOF
	127	{
	128	my ($expect, $eval) = split / /, $line, 2;
	129	my $result = eval $eval;
	130	ok($@ eq '', "eval $eval");
	131	is(ref $result, $expect ? 'HASH' : '', $eval);
	132	}
3cf7b4c4	133
	134	# Bug #24212
	135	{
	136	local $SIG{__WARN__} = sub { }; # silence mandatory warning
	137	eval q{ my $x = -F 1; };
250d67eb	138	like( $@, qr/(?i:syntax\|parse) error .* near "F 1"/, "unknown filetest operators" );
3cf7b4c4	139	is(
	140	eval q{ sub F { 42 } -F 1 },
	141	'-42',
	142	'-F calls the F function'
	143	);
	144	}
1c03aa9b	145
	146	# Bug #24762
	147	{
	148	eval q{ *foo{CODE} ? 1 : 0 };
	149	is( $@, '', "glob subscript in conditional" );
	150	}
500bedb6	151
	152	# Bug #25824
	153	{
	154	eval q{ sub f { @a=@b=@c; {use} } };
	155	like( $@, qr/syntax error/, "use without body" );
	156	}
e1548254	157
	158	# Bug #27024
	159	{
	160	# this used to segfault (because $[=1 is optimized away to a null block)
	161	my $x;
	162	$[ = 1 while $x;
	163	pass();
1bca678f	164	$[ = 0; # restore the original value for less side-effects
e1548254	165	}
8e742a20	166
	167	# [perl #2738] perl segfautls on input
	168	{
	169	eval q{ sub _ <> {} };
	170	like($@, qr/Illegal declaration of subroutine main::_/, "readline operator as prototype");
	171
	172	eval q{ $s = sub <> {} };
	173	like($@, qr/Illegal declaration of anonymous subroutine/, "readline operator as prototype");
	174
	175	eval q{ sub _ __FILE__ {} };
	176	like($@, qr/Illegal declaration of subroutine main::_/, "__FILE__ as prototype");
	177	}
dbfe47cf	178
	179	# [perl #36313] perl -e "1for$[=0" crash
	180	{
	181	my $x;
	182	$x = 1 for ($[) = 0;
	183	pass('optimized assignment to $[ used to segfault in list context');
	184	if ($[ = 0) { $x = 1 }
	185	pass('optimized assignment to $[ used to segfault in scalar context');
	186	$x = ($[=2.4);
	187	is($x, 2, 'scalar assignment to $[ behaves like other variables');
	188	$x = (($[) = 0);
	189	is($x, 1, 'list assignment to $[ behaves like other variables');
	190	$x = eval q{ ($[, $x) = (0) };
	191	like($@, qr/That use of \$\[ is unsupported/,
	192	'cannot assign to $[ in a list');
	193	eval q{ ($[) = (0, 1) };
	194	like($@, qr/That use of \$\[ is unsupported/,
	195	'cannot assign list of >1 elements to $[');
	196	eval q{ ($[) = () };
	197	like($@, qr/That use of \$\[ is unsupported/,
	198	'cannot assign list of <1 elements to $[');
	199	}
917949e3	200
	201	# tests for "Bad name"
	202	eval q{ foo::$bar };
	203	like( $@, qr/Bad name after foo::/, 'Bad name after foo::' );
	204	eval q{ foo''bar };
	205	like( $@, qr/Bad name after foo'/, 'Bad name after foo\'' );
a6a8bb49	206
	207	# test for ?: context error
	208	eval q{($a ? $x : ($y)) = 5};
	209	like( $@, qr/Assignment to both a list and a scalar/, 'Assignment to both a list and a scalar' );
2d997502	210
	211	eval q{ s/x/#/e };
	212	is( $@, '', 'comments in s///e' );
2af555bf	213
718a7425	214	# these five used to coredump because the op cleanup on parse error could
2af555bf	215	# be to the wrong pad
	216
	217	eval q[
	218	sub { our $a= 1;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;
	219	sub { my $z
	220	];
	221
	222	like($@, qr/Missing right curly/, 'nested sub syntax error' );
	223
	224	eval q[
	225	sub { my ($a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n,$o,$p,$q,$r,$s,$r);
	226	sub { my $z
	227	];
	228	like($@, qr/Missing right curly/, 'nested sub syntax error 2' );
	229
718a7425	230	eval q[
	231	sub { our $a= 1;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;$a;
	232	use DieDieDie;
	233	];
	234
	235	like($@, qr/Can't locate DieDieDie.pm/, 'croak cleanup' );
	236
	237	eval q[
	238	sub { my ($a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n,$o,$p,$q,$r,$s,$r);
	239	use DieDieDie;
	240	];
	241
	242	like($@, qr/Can't locate DieDieDie.pm/, 'croak cleanup 2' );
	243
	244
	245	eval q[
	246	my @a;
	247	my ($a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n,$o,$p,$q,$r,$s,$r);
	248	@a =~ s/a/b/; # compile-time error
	249	use DieDieDie;
	250	];
	251
	252	like($@, qr/Can't modify/, 'croak cleanup 3' );
	253
7e5d8ed2	254	# these might leak, or have duplicate frees, depending on the bugginess of
	255	# the parser stack 'fail in reduce' cleanup code. They're here mainly as
	256	# something to be run under valgrind, with PERL_DESTRUCT_LEVEL=1.
	257
	258	eval q[ BEGIN { } ] for 1..10;
	259	is($@, "", 'BEGIN 1' );
	260
	261	eval q[ BEGIN { my $x; $x = 1 } ] for 1..10;
	262	is($@, "", 'BEGIN 2' );
	263
	264	eval q[ BEGIN { \&foo1 } ] for 1..10;
	265	is($@, "", 'BEGIN 3' );
	266
	267	eval q[ sub foo2 { } ] for 1..10;
	268	is($@, "", 'BEGIN 4' );
	269
	270	eval q[ sub foo3 { my $x; $x=1 } ] for 1..10;
	271	is($@, "", 'BEGIN 5' );
	272
	273	eval q[ BEGIN { die } ] for 1..10;
	274	like($@, qr/BEGIN failed--compilation aborted/, 'BEGIN 6' );
	275
	276	eval q[ BEGIN {\&foo4; die } ] for 1..10;
	277	like($@, qr/BEGIN failed--compilation aborted/, 'BEGIN 7' );
44867030	278
	279	# Add new tests HERE:
	280
	281	# More awkward tests for #line. Keep these at the end, as they will screw
	282	# with sane line reporting for any other test failures
	283
	284	sub check ($$$) {
	285	my ($file, $line, $name) = @_;
	286	my (undef, $got_file, $got_line) = caller;
	287	like ($got_file, $file, "file of $name");
44867030	288	is ($got_line, $line, "line of $name");
	289	}
	290
	291	#line 3
	292	check(qr/parser\.t$/, 3, "bare line");
	293
	294	# line 5
	295	check(qr/parser\.t$/, 5, "bare line with leading space");
	296
	297	#line 7
	298	check(qr/parser\.t$/, 7, "trailing space still valid");
	299
	300	# line 11
	301	check(qr/parser\.t$/, 11, "leading and trailing");
	302
	303	# line 13
	304	check(qr/parser\.t$/, 13, "leading tab");
	305
	306	#line 17
	307	check(qr/parser\.t$/, 17, "middle tab");
	308
	309	#line 19
	310	check(qr/parser\.t$/, 19, "loadsaspaces");
	311
	312	#line 23 KASHPRITZA
	313	check(qr/^KASHPRITZA$/, 23, "bare filename");
	314
	315	#line 29 "KAHEEEE"
	316	check(qr/^KAHEEEE$/, 29, "filename in quotes");
	317
	318	#line 31 "CLINK CLOINK BZZT"
	319	check(qr/^CLINK CLOINK BZZT$/, 31, "filename with spaces in quotes");
	320
	321	#line 37 "THOOM THOOM"
	322	check(qr/^THOOM THOOM$/, 37, "filename with tabs in quotes");
	323
	324	#line 41 "GLINK PLINK GLUNK DINK"
	325	check(qr/^GLINK PLINK GLUNK DINK$/, 41, "a space after the quotes");
	326
	327	#line 43 "BBFRPRAFPGHPP
	328	check(qr/^"BBFRPRAFPGHPP$/, 43, "actually missing a quote is still valid");
	329
	330	#line 47 bang eth
	331	check(qr/^"BBFRPRAFPGHPP$/, 46, "but spaces aren't allowed without quotes");
	332
	333	eval <<'EOSTANZA'; die $@ if $@;
	334	#line 51 "With wonderful deathless ditties\|We build up the world's great cities,\|And out of a fabulous story\|We fashion an empire's glory:\|One man with a dream, at pleasure,\|Shall go forth and conquer a crown;\|And three with a new song's measure\|Can trample a kingdom down."
	335	check(qr/^With.*down\.$/, 51, "Overflow the second small buffer check");
	336	EOSTANZA
	337
	338	# And now, turn on the debugger flag for long names
	339	$^P = 0x100;
	340
	341	#line 53 "For we are afar with the dawning\|And the suns that are not yet high,\|And out of the infinite morning\|Intrepid you hear us cry-\|How, spite of your human scorning,\|Once more God's future draws nigh,\|And already goes forth the warning\|That ye of the past must die."
	342	check(qr/^For we.*must die\.$/, 53, "Our long line is set up");
	343
	344	eval <<'EOT'; die $@ if $@;
	345	#line 59 " "
	346	check(qr/^ $/, 59, "Overflow the first small buffer check only");
	347	EOT
	348
	349	eval <<'EOSTANZA'; die $@ if $@;
	350	#line 61 "Great hail! we cry to the comers\|From the dazzling unknown shore;\|Bring us hither your sun and your summers;\|And renew our world as of yore;\|You shall teach us your song's new numbers,\|And things that we dreamed not before:\|Yea, in spite of a dreamer who slumbers,\|And a singer who sings no more."
	351	check(qr/^Great hail!.*no more\.$/, 61, "Overflow both small buffer checks");
352	EOSTANZA
353
354	__END__
355	# Don't add new tests HERE. See note above