[p5sagit/p5-mst-13.2.git] / t / pragma / warn / toke

toke.c	AOK

    we seem to have lost a few ambiguous warnings!!

 
 		$a = <<;
 		Use of comma-less variable list is deprecated 
		(called 3 times via depcom)

     \1 better written as $1 
 	use warnings 'syntax' ;
 	s/(abc)/\1/;
 
     warn(warn_nosemi) 
     Semicolon seems to be missing
	$a = 1
	&time ;


     Reversed %c= operator 
	my $a =+ 2 ;
	$a =- 2 ;
	$a =* 2 ;
	$a =% 2 ;
	$a =& 2 ;
	$a =. 2 ;
	$a =^ 2 ;
	$a =| 2 ;
	$a =< 2 ;
	$a =/ 2 ;

     Multidimensional syntax %.*s not supported 
	my $a = $a[1,2] ;

     You need to quote \"%s\"" 
	sub fred {} ; $SIG{TERM} = fred;

     Scalar value %.*s better written as $%.*s" 
	@a[3] = 2;
	@a{3} = 2;

     Can't use \\%c to mean $%c in expression 
	$_ = "ab" ; s/(ab)/\1/e;

     Unquoted string "abc" may clash with future reserved word at - line 3.
     warn(warn_reserved	
	$a = abc;

     chmod() mode argument is missing initial 0 
	chmod 3;

     Possible attempt to separate words with commas 
	@a = qw(a, b, c) ;

     Possible attempt to put comments in qw() list 
	@a = qw(a b # c) ;

     umask: argument is missing initial 0 
	umask 3;

     %s (...) interpreted as function 
	print ("")
	printf ("")
	sort ("")

     Ambiguous use of %c{%s%s} resolved to %c%s%s 
	$a = ${time[2]}
	$a = ${time{2}}


     Ambiguous use of %c{%s} resolved to %c%s
	$a = ${time}
	sub fred {} $a = ${fred}

     Misplaced _ in number 
	$a = 1_2;
	$a = 1_2345_6;

    Bareword \"%s\" refers to nonexistent package
	$a = FRED:: ;

    Ambiguous call resolved as CORE::%s(), qualify as such or use &
	sub time {} 
	my $a = time()

    Unrecognized escape \\%c passed through
        $a = "\m" ;

    %s number > %s non-portable
        my $a =  0b011111111111111111111111111111110 ;
        $a =  0b011111111111111111111111111111111 ;
        $a =  0b111111111111111111111111111111111 ;
        $a =  0x0fffffffe ;
        $a =  0x0ffffffff ;
        $a =  0x1ffffffff ;
        $a =  0037777777776 ;
        $a =  0037777777777 ;
        $a =  0047777777777 ;

    Integer overflow in binary number
        my $a =  0b011111111111111111111111111111110 ;
        $a =  0b011111111111111111111111111111111 ;
        $a =  0b111111111111111111111111111111111 ;
        $a =  0x0fffffffe ;
        $a =  0x0ffffffff ;
        $a =  0x1ffffffff ;
        $a =  0037777777776 ;
        $a =  0037777777777 ;
        $a =  0047777777777 ;
     
    Mandatory Warnings
    ------------------
    Use of "%s" without parentheses is ambiguous	[check_uni]
        rand + 4 

    Ambiguous use of -%s resolved as -&%s() 		[yylex]
        sub fred {} ; - fred ;

    Precedence problem: open %.*s should be open(%.*s)	[yylex]
    	open FOO || die;

    Operator or semicolon missing before %c%s		[yylex]
    Ambiguous use of %c resolved as operator %c
        *foo *foo

__END__
# toke.c 
use warnings 'deprecated' ;
format STDOUT =
@<<<  @|||  @>>>  @>>>
$a    $b    "abc" 'def'
.
no warnings 'deprecated' ;
format STDOUT =
@<<<  @|||  @>>>  @>>>
$a    $b    "abc" 'def'
.
EXPECT
Use of comma-less variable list is deprecated at - line 5.
Use of comma-less variable list is deprecated at - line 5.
Use of comma-less variable list is deprecated at - line 5.
########
# toke.c
use warnings 'deprecated' ;
$a = <<;

no warnings 'deprecated' ;
$a = <<;

EXPECT
Use of bare << to mean <<"" is deprecated at - line 3.
########
# toke.c
use warnings 'syntax' ;
s/(abc)/\1/;
no warnings 'syntax' ;
s/(abc)/\1/;
EXPECT
\1 better written as $1 at - line 3.
########
# toke.c
use warnings 'semicolon' ;
$a = 1
&time ;
no warnings 'semicolon' ;
$a = 1
&time ;
EXPECT
Semicolon seems to be missing at - line 3.
########
# toke.c
BEGIN {
    # Scalars leaked: due to syntax errors
    $ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3;
}
use warnings 'syntax' ;
my $a =+ 2 ;
$a =- 2 ;
$a =* 2 ;
$a =% 2 ;
$a =& 2 ;
$a =. 2 ;
$a =^ 2 ;
$a =| 2 ;
$a =< 2 ;
$a =/ 2 ;
EXPECT
Reversed += operator at - line 7.
Reversed -= operator at - line 8.
Reversed *= operator at - line 9.
Reversed %= operator at - line 10.
Reversed &= operator at - line 11.
Reversed .= operator at - line 12.
Reversed ^= operator at - line 13.
Reversed |= operator at - line 14.
Reversed <= operator at - line 15.
syntax error at - line 12, near "=."
syntax error at - line 13, near "=^"
syntax error at - line 14, near "=|"
Unterminated <> operator at - line 15.
########
# toke.c
BEGIN {
    # Scalars leaked: due to syntax errors
    $ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3;
}
no warnings 'syntax' ;
my $a =+ 2 ;
$a =- 2 ;
$a =* 2 ;
$a =% 2 ;
$a =& 2 ;
$a =. 2 ;
$a =^ 2 ;
$a =| 2 ;
$a =< 2 ;
$a =/ 2 ;
EXPECT
syntax error at - line 12, near "=."
syntax error at - line 13, near "=^"
syntax error at - line 14, near "=|"
Unterminated <> operator at - line 15.
########
# toke.c
use warnings 'syntax' ;
my $a = $a[1,2] ;
no warnings 'syntax' ;
my $a = $a[1,2] ;
EXPECT
Multidimensional syntax $a[1,2] not supported at - line 3.
########
# toke.c
use warnings 'syntax' ;
sub fred {} ; $SIG{TERM} = fred;
no warnings 'syntax' ;
$SIG{TERM} = fred;
EXPECT
You need to quote "fred" at - line 3.
########
# toke.c
use warnings 'syntax' ;
@a[3] = 2;
@a{3} = 2;
no warnings 'syntax' ;
@a[3] = 2;
@a{3} = 2;
EXPECT
Scalar value @a[3] better written as $a[3] at - line 3.
Scalar value @a{3} better written as $a{3} at - line 4.
########
# toke.c
use warnings 'syntax' ;
$_ = "ab" ; 
s/(ab)/\1/e;
no warnings 'syntax' ;
$_ = "ab" ; 
s/(ab)/\1/e;
EXPECT
Can't use \1 to mean $1 in expression at - line 4.
########
# toke.c
use warnings 'reserved' ;
$a = abc;
$a = { def

=> 1 };
no warnings 'reserved' ;
$a = abc;
EXPECT
Unquoted string "abc" may clash with future reserved word at - line 3.
########
# toke.c
use warnings 'chmod' ;
chmod 3;
no warnings 'chmod' ;
chmod 3;
EXPECT
chmod() mode argument is missing initial 0 at - line 3.
########
# toke.c
use warnings 'qw' ;
@a = qw(a, b, c) ;
no warnings 'qw' ;
@a = qw(a, b, c) ;
EXPECT
Possible attempt to separate words with commas at - line 3.
########
# toke.c
use warnings 'qw' ;
@a = qw(a b #) ;
no warnings 'qw' ;
@a = qw(a b #) ;
EXPECT
Possible attempt to put comments in qw() list at - line 3.
########
# toke.c
use warnings 'umask' ;
umask 3;
no warnings 'umask' ;
umask 3;
EXPECT
umask: argument is missing initial 0 at - line 3.
########
# toke.c
use warnings 'syntax' ;
print ("")
EXPECT
print (...) interpreted as function at - line 3.
########
# toke.c
no warnings 'syntax' ;
print ("")
EXPECT

########
# toke.c
use warnings 'syntax' ;
printf ("")
EXPECT
printf (...) interpreted as function at - line 3.
########
# toke.c
no warnings 'syntax' ;
printf ("")
EXPECT

########
# toke.c
use warnings 'syntax' ;
sort ("")
EXPECT
sort (...) interpreted as function at - line 3.
########
# toke.c
no warnings 'syntax' ;
sort ("")
EXPECT

########
# toke.c
use warnings 'ambiguous' ;
$a = ${time[2]};
no warnings 'ambiguous' ;
$a = ${time[2]};
EXPECT
Ambiguous use of ${time[...]} resolved to $time[...] at - line 3.
########
# toke.c
use warnings 'ambiguous' ;
$a = ${time{2}};
EXPECT
Ambiguous use of ${time{...}} resolved to $time{...} at - line 3.
########
# toke.c
no warnings 'ambiguous' ;
$a = ${time{2}};
EXPECT

########
# toke.c
use warnings 'ambiguous' ;
$a = ${time} ;
no warnings 'ambiguous' ;
$a = ${time} ;
EXPECT
Ambiguous use of ${time} resolved to $time at - line 3.
########
# toke.c
use warnings 'ambiguous' ;
sub fred {}
$a = ${fred} ;
no warnings 'ambiguous' ;
$a = ${fred} ;
EXPECT
Ambiguous use of ${fred} resolved to $fred at - line 4.
########
# toke.c
use warnings 'syntax' ;
$a = 1_2;
$a = 1_2345_6;
no warnings 'syntax' ;
$a = 1_2;
$a = 1_2345_6;
EXPECT
Misplaced _ in number at - line 3.
Misplaced _ in number at - line 4.
Misplaced _ in number at - line 4.
########
# toke.c
use warnings 'bareword' ;
#line 25 "bar"
$a = FRED:: ;
no warnings 'bareword' ;
#line 25 "bar"
$a = FRED:: ;
EXPECT
Bareword "FRED::" refers to nonexistent package at bar line 25.
########
# toke.c
use warnings 'ambiguous' ;
sub time {}
my $a = time() ;
no warnings 'ambiguous' ;
my $b = time() ;
EXPECT
Ambiguous call resolved as CORE::time(), qualify as such or use & at - line 4.
########
# toke.c
use warnings ;
eval <<'EOE';
#  line 30 "foo"
warn "yelp";
{
  $_ = " \x{123} " ;
}
EOE
EXPECT
yelp at foo line 30.
########
# toke.c
my $a = rand + 4 ;
EXPECT
Warning: Use of "rand" without parens is ambiguous at - line 2.
########
# toke.c
$^W = 0 ;
my $a = rand + 4 ;
{
    no warnings 'ambiguous' ;
    $a = rand + 4 ;
    use warnings 'ambiguous' ;
    $a = rand + 4 ;
}
$a = rand + 4 ;
EXPECT
Warning: Use of "rand" without parens is ambiguous at - line 3.
Warning: Use of "rand" without parens is ambiguous at - line 8.
Warning: Use of "rand" without parens is ambiguous at - line 10.
########
# toke.c
sub fred {};
-fred ;
EXPECT
Ambiguous use of -fred resolved as -&fred() at - line 3.
########
# toke.c
$^W = 0 ;
sub fred {} ;
-fred ;
{
    no warnings 'ambiguous' ;
    -fred ;
    use warnings 'ambiguous' ;
    -fred ;
}
-fred ;
EXPECT
Ambiguous use of -fred resolved as -&fred() at - line 4.
Ambiguous use of -fred resolved as -&fred() at - line 9.
Ambiguous use of -fred resolved as -&fred() at - line 11.
########
# toke.c
open FOO || time;
EXPECT
Precedence problem: open FOO should be open(FOO) at - line 2.
########
# toke.c
$^W = 0 ;
open FOO || time;
{
    no warnings 'precedence' ;
    open FOO || time;
    use warnings 'precedence' ;
    open FOO || time;
}
open FOO || time;
EXPECT
Precedence problem: open FOO should be open(FOO) at - line 3.
Precedence problem: open FOO should be open(FOO) at - line 8.
Precedence problem: open FOO should be open(FOO) at - line 10.
########
# toke.c
$^W = 0 ;
*foo *foo ;
{
    no warnings 'ambiguous' ;
    *foo *foo ;
    use warnings 'ambiguous' ;
    *foo *foo ;
}
*foo *foo ;
EXPECT
Operator or semicolon missing before *foo at - line 3.
Ambiguous use of * resolved as operator * at - line 3.
Operator or semicolon missing before *foo at - line 8.
Ambiguous use of * resolved as operator * at - line 8.
Operator or semicolon missing before *foo at - line 10.
Ambiguous use of * resolved as operator * at - line 10.
########
# toke.c
use warnings 'misc' ;
my $a = "\m" ;
no warnings 'misc' ;
$a = "\m" ;
EXPECT
Unrecognized escape \m passed through at - line 3.
########
# toke.c
use warnings 'portable' ;
my $a =  0b011111111111111111111111111111110 ;
   $a =  0b011111111111111111111111111111111 ;
   $a =  0b111111111111111111111111111111111 ;
   $a =  0x0fffffffe ;
   $a =  0x0ffffffff ;
   $a =  0x1ffffffff ;
   $a =  0037777777776 ;
   $a =  0037777777777 ;
   $a =  0047777777777 ;
no warnings 'portable' ;
   $a =  0b011111111111111111111111111111110 ;
   $a =  0b011111111111111111111111111111111 ;
   $a =  0b111111111111111111111111111111111 ;
   $a =  0x0fffffffe ;
   $a =  0x0ffffffff ;
   $a =  0x1ffffffff ;
   $a =  0037777777776 ;
   $a =  0037777777777 ;
   $a =  0047777777777 ;
EXPECT
Binary number > 0b11111111111111111111111111111111 non-portable at - line 5.
Hexadecimal number > 0xffffffff non-portable at - line 8.
Octal number > 037777777777 non-portable at - line 11.
########
# toke.c
use warnings 'overflow' ;
my $a =  0b011111111111111111111111111111110 ;
   $a =  0b011111111111111111111111111111111 ;
   $a =  0b10000000000000000000000000000000000000000000000000000000000000000 ;
   $a =  0x0fffffffe ;
   $a =  0x0ffffffff ;
   $a =  0x10000000000000000 ;
   $a =  0037777777776 ;
   $a =  0037777777777 ;
   $a =  002000000000000000000000;
no warnings 'overflow' ;
   $a =  0b011111111111111111111111111111110 ;
   $a =  0b011111111111111111111111111111111 ;
   $a =  0b10000000000000000000000000000000000000000000000000000000000000000 ;
   $a =  0x0fffffffe ;
   $a =  0x0ffffffff ;
   $a =  0x10000000000000000 ;
   $a =  0037777777776 ;
   $a =  0037777777777 ;
   $a =  002000000000000000000000;
EXPECT
Integer overflow in binary number at - line 5.
Integer overflow in hexadecimal number at - line 8.
Integer overflow in octal number at - line 11.
########
# toke.c
use warnings 'ambiguous';
"@mjd_previously_unused_array";        
no warnings 'ambiguous';
"@mjd_previously_unused_array";        
EXPECT
Possible unintended interpolation of @mjd_previously_unused_array in string at - line 3.
Commit	Line	Data
599cee73	1	toke.c AOK
	2
	3	we seem to have lost a few ambiguous warnings!!
	4
	5
599cee73	6	$a = <<;
	7	Use of comma-less variable list is deprecated
	8	(called 3 times via depcom)
	9
	10	\1 better written as $1
4438c4b7	11	use warnings 'syntax' ;
599cee73	12	s/(abc)/\1/;
	13
	14	warn(warn_nosemi)
	15	Semicolon seems to be missing
	16	$a = 1
	17	&time ;
	18
	19
	20	Reversed %c= operator
	21	my $a =+ 2 ;
	22	$a =- 2 ;
	23	$a =* 2 ;
	24	$a =% 2 ;
	25	$a =& 2 ;
	26	$a =. 2 ;
	27	$a =^ 2 ;
	28	$a =\| 2 ;
	29	$a =< 2 ;
	30	$a =/ 2 ;
	31
	32	Multidimensional syntax %.*s not supported
	33	my $a = $a[1,2] ;
	34
	35	You need to quote \"%s\""
	36	sub fred {} ; $SIG{TERM} = fred;
	37
	38	Scalar value %.s better written as $%.s"
	39	@a[3] = 2;
	40	@a{3} = 2;
	41
	42	Can't use \\%c to mean $%c in expression
	43	$_ = "ab" ; s/(ab)/\1/e;
	44
	45	Unquoted string "abc" may clash with future reserved word at - line 3.
	46	warn(warn_reserved
	47	$a = abc;
	48
073ca4f1	49	chmod() mode argument is missing initial 0
599cee73	50	chmod 3;
	51
	52	Possible attempt to separate words with commas
	53	@a = qw(a, b, c) ;
	54
	55	Possible attempt to put comments in qw() list
	56	@a = qw(a b # c) ;
	57
	58	umask: argument is missing initial 0
	59	umask 3;
	60
	61	%s (...) interpreted as function
	62	print ("")
	63	printf ("")
	64	sort ("")
	65
	66	Ambiguous use of %c{%s%s} resolved to %c%s%s
	67	$a = ${time[2]}
	68	$a = ${time{2}}
	69
	70
	71	Ambiguous use of %c{%s} resolved to %c%s
	72	$a = ${time}
	73	sub fred {} $a = ${fred}
	74
	75	Misplaced _ in number
	76	$a = 1_2;
	77	$a = 1_2345_6;
	78
	79	Bareword \"%s\" refers to nonexistent package
	80	$a = FRED:: ;
	81
	82	Ambiguous call resolved as CORE::%s(), qualify as such or use &
	83	sub time {}
	84	my $a = time()
	85
767a6a26	86	Unrecognized escape \\%c passed through
	87	$a = "\m" ;
	88
	89	%s number > %s non-portable
	90	my $a = 0b011111111111111111111111111111110 ;
	91	$a = 0b011111111111111111111111111111111 ;
	92	$a = 0b111111111111111111111111111111111 ;
	93	$a = 0x0fffffffe ;
	94	$a = 0x0ffffffff ;
	95	$a = 0x1ffffffff ;
	96	$a = 0037777777776 ;
	97	$a = 0037777777777 ;
	98	$a = 0047777777777 ;
	99
	100	Integer overflow in binary number
	101	my $a = 0b011111111111111111111111111111110 ;
	102	$a = 0b011111111111111111111111111111111 ;
	103	$a = 0b111111111111111111111111111111111 ;
	104	$a = 0x0fffffffe ;
	105	$a = 0x0ffffffff ;
	106	$a = 0x1ffffffff ;
	107	$a = 0037777777776 ;
	108	$a = 0037777777777 ;
	109	$a = 0047777777777 ;
599cee73	110
0453d815	111	Mandatory Warnings
	112	------------------
	113	Use of "%s" without parentheses is ambiguous [check_uni]
	114	rand + 4
	115
	116	Ambiguous use of -%s resolved as -&%s() [yylex]
	117	sub fred {} ; - fred ;
	118
	119	Precedence problem: open %.s should be open(%.s) [yylex]
	120	open FOO \|\| die;
	121
	122	Operator or semicolon missing before %c%s [yylex]
	123	Ambiguous use of %c resolved as operator %c
	124	foo foo
	125
599cee73	126	__END__
599cee73	127	# toke.c
a4f5cc89	128	use warnings 'deprecated' ;
599cee73	129	format STDOUT =
	130	@<<< @\|\|\| @>>> @>>>
	131	$a $b "abc" 'def'
	132	.
4438c4b7	133	no warnings 'deprecated' ;
0453d815	134	format STDOUT =
	135	@<<< @\|\|\| @>>> @>>>
	136	$a $b "abc" 'def'
	137	.
599cee73	138	EXPECT
	139	Use of comma-less variable list is deprecated at - line 5.
	140	Use of comma-less variable list is deprecated at - line 5.
	141	Use of comma-less variable list is deprecated at - line 5.
599cee73	142	########
599cee73	143	# toke.c
4438c4b7	144	use warnings 'deprecated' ;
599cee73	145	$a = <<;
599cee73	146
4438c4b7	147	no warnings 'deprecated' ;
0453d815	148	$a = <<;
0453d815	149
599cee73	150	EXPECT
	151	Use of bare << to mean <<"" is deprecated at - line 3.
	152	########
	153	# toke.c
4438c4b7	154	use warnings 'syntax' ;
599cee73	155	s/(abc)/\1/;
4438c4b7	156	no warnings 'syntax' ;
0453d815	157	s/(abc)/\1/;
599cee73	158	EXPECT
	159	\1 better written as $1 at - line 3.
	160	########
	161	# toke.c
4438c4b7	162	use warnings 'semicolon' ;
599cee73	163	$a = 1
599cee73	164	&time ;
4438c4b7	165	no warnings 'semicolon' ;
0453d815	166	$a = 1
0453d815	167	&time ;
599cee73	168	EXPECT
	169	Semicolon seems to be missing at - line 3.
	170	########
	171	# toke.c
e4050d25	172	BEGIN {
	173	# Scalars leaked: due to syntax errors
	174	$ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3;
	175	}
4438c4b7	176	use warnings 'syntax' ;
599cee73	177	my $a =+ 2 ;
	178	$a =- 2 ;
	179	$a =* 2 ;
	180	$a =% 2 ;
	181	$a =& 2 ;
	182	$a =. 2 ;
	183	$a =^ 2 ;
	184	$a =\| 2 ;
	185	$a =< 2 ;
	186	$a =/ 2 ;
	187	EXPECT
e4050d25	188	Reversed += operator at - line 7.
	189	Reversed -= operator at - line 8.
	190	Reversed *= operator at - line 9.
	191	Reversed %= operator at - line 10.
	192	Reversed &= operator at - line 11.
	193	Reversed .= operator at - line 12.
e4050d25	194	Reversed ^= operator at - line 13.
e4050d25	195	Reversed \|= operator at - line 14.
e4050d25	196	Reversed <= operator at - line 15.
24944567	197	syntax error at - line 12, near "=."
	198	syntax error at - line 13, near "=^"
	199	syntax error at - line 14, near "=\|"
e4050d25	200	Unterminated <> operator at - line 15.
599cee73	201	########
599cee73	202	# toke.c
0453d815	203	BEGIN {
	204	# Scalars leaked: due to syntax errors
	205	$ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3;
	206	}
4438c4b7	207	no warnings 'syntax' ;
0453d815	208	my $a =+ 2 ;
	209	$a =- 2 ;
	210	$a =* 2 ;
	211	$a =% 2 ;
	212	$a =& 2 ;
	213	$a =. 2 ;
	214	$a =^ 2 ;
	215	$a =\| 2 ;
	216	$a =< 2 ;
	217	$a =/ 2 ;
	218	EXPECT
	219	syntax error at - line 12, near "=."
	220	syntax error at - line 13, near "=^"
	221	syntax error at - line 14, near "=\|"
	222	Unterminated <> operator at - line 15.
	223	########
	224	# toke.c
4438c4b7	225	use warnings 'syntax' ;
599cee73	226	my $a = $a[1,2] ;
4438c4b7	227	no warnings 'syntax' ;
0453d815	228	my $a = $a[1,2] ;
599cee73	229	EXPECT
	230	Multidimensional syntax $a[1,2] not supported at - line 3.
	231	########
	232	# toke.c
4438c4b7	233	use warnings 'syntax' ;
599cee73	234	sub fred {} ; $SIG{TERM} = fred;
4438c4b7	235	no warnings 'syntax' ;
0453d815	236	$SIG{TERM} = fred;
599cee73	237	EXPECT
	238	You need to quote "fred" at - line 3.
	239	########
	240	# toke.c
4438c4b7	241	use warnings 'syntax' ;
599cee73	242	@a[3] = 2;
599cee73	243	@a{3} = 2;
4438c4b7	244	no warnings 'syntax' ;
0453d815	245	@a[3] = 2;
0453d815	246	@a{3} = 2;
599cee73	247	EXPECT
	248	Scalar value @a[3] better written as $a[3] at - line 3.
	249	Scalar value @a{3} better written as $a{3} at - line 4.
	250	########
	251	# toke.c
4438c4b7	252	use warnings 'syntax' ;
599cee73	253	$_ = "ab" ;
599cee73	254	s/(ab)/\1/e;
4438c4b7	255	no warnings 'syntax' ;
0453d815	256	$_ = "ab" ;
0453d815	257	s/(ab)/\1/e;
599cee73	258	EXPECT
	259	Can't use \1 to mean $1 in expression at - line 4.
	260	########
	261	# toke.c
4438c4b7	262	use warnings 'reserved' ;
599cee73	263	$a = abc;
1c3923b3	264	$a = { def
	265
	266	=> 1 };
4438c4b7	267	no warnings 'reserved' ;
0453d815	268	$a = abc;
599cee73	269	EXPECT
	270	Unquoted string "abc" may clash with future reserved word at - line 3.
	271	########
	272	# toke.c
e476b1b5	273	use warnings 'chmod' ;
599cee73	274	chmod 3;
e476b1b5	275	no warnings 'chmod' ;
0453d815	276	chmod 3;
599cee73	277	EXPECT
073ca4f1	278	chmod() mode argument is missing initial 0 at - line 3.
599cee73	279	########
599cee73	280	# toke.c
e476b1b5	281	use warnings 'qw' ;
599cee73	282	@a = qw(a, b, c) ;
e476b1b5	283	no warnings 'qw' ;
0453d815	284	@a = qw(a, b, c) ;
599cee73	285	EXPECT
	286	Possible attempt to separate words with commas at - line 3.
	287	########
	288	# toke.c
e476b1b5	289	use warnings 'qw' ;
599cee73	290	@a = qw(a b #) ;
e476b1b5	291	no warnings 'qw' ;
0453d815	292	@a = qw(a b #) ;
599cee73	293	EXPECT
	294	Possible attempt to put comments in qw() list at - line 3.
	295	########
	296	# toke.c
e476b1b5	297	use warnings 'umask' ;
599cee73	298	umask 3;
e476b1b5	299	no warnings 'umask' ;
0453d815	300	umask 3;
599cee73	301	EXPECT
4438c4b7	302	umask: argument is missing initial 0 at - line 3.
599cee73	303	########
599cee73	304	# toke.c
4438c4b7	305	use warnings 'syntax' ;
599cee73	306	print ("")
	307	EXPECT
	308	print (...) interpreted as function at - line 3.
	309	########
	310	# toke.c
4438c4b7	311	no warnings 'syntax' ;
0453d815	312	print ("")
	313	EXPECT
	314
	315	########
	316	# toke.c
4438c4b7	317	use warnings 'syntax' ;
599cee73	318	printf ("")
	319	EXPECT
	320	printf (...) interpreted as function at - line 3.
	321	########
	322	# toke.c
4438c4b7	323	no warnings 'syntax' ;
0453d815	324	printf ("")
	325	EXPECT
	326
	327	########
	328	# toke.c
4438c4b7	329	use warnings 'syntax' ;
599cee73	330	sort ("")
	331	EXPECT
	332	sort (...) interpreted as function at - line 3.
	333	########
	334	# toke.c
4438c4b7	335	no warnings 'syntax' ;
0453d815	336	sort ("")
	337	EXPECT
	338
	339	########
	340	# toke.c
4438c4b7	341	use warnings 'ambiguous' ;
599cee73	342	$a = ${time[2]};
4438c4b7	343	no warnings 'ambiguous' ;
0453d815	344	$a = ${time[2]};
599cee73	345	EXPECT
	346	Ambiguous use of ${time[...]} resolved to $time[...] at - line 3.
	347	########
	348	# toke.c
4438c4b7	349	use warnings 'ambiguous' ;
599cee73	350	$a = ${time{2}};
	351	EXPECT
	352	Ambiguous use of ${time{...}} resolved to $time{...} at - line 3.
	353	########
	354	# toke.c
4438c4b7	355	no warnings 'ambiguous' ;
0453d815	356	$a = ${time{2}};
	357	EXPECT
	358
	359	########
	360	# toke.c
4438c4b7	361	use warnings 'ambiguous' ;
599cee73	362	$a = ${time} ;
4438c4b7	363	no warnings 'ambiguous' ;
0453d815	364	$a = ${time} ;
599cee73	365	EXPECT
	366	Ambiguous use of ${time} resolved to $time at - line 3.
	367	########
	368	# toke.c
4438c4b7	369	use warnings 'ambiguous' ;
599cee73	370	sub fred {}
599cee73	371	$a = ${fred} ;
4438c4b7	372	no warnings 'ambiguous' ;
0453d815	373	$a = ${fred} ;
599cee73	374	EXPECT
	375	Ambiguous use of ${fred} resolved to $fred at - line 4.
	376	########
	377	# toke.c
4438c4b7	378	use warnings 'syntax' ;
599cee73	379	$a = 1_2;
599cee73	380	$a = 1_2345_6;
4438c4b7	381	no warnings 'syntax' ;
0453d815	382	$a = 1_2;
0453d815	383	$a = 1_2345_6;
599cee73	384	EXPECT
	385	Misplaced _ in number at - line 3.
	386	Misplaced _ in number at - line 4.
	387	Misplaced _ in number at - line 4.
	388	########
	389	# toke.c
e476b1b5	390	use warnings 'bareword' ;
60e6418e	391	#line 25 "bar"
599cee73	392	$a = FRED:: ;
e476b1b5	393	no warnings 'bareword' ;
0453d815	394	#line 25 "bar"
0453d815	395	$a = FRED:: ;
599cee73	396	EXPECT
60e6418e	397	Bareword "FRED::" refers to nonexistent package at bar line 25.
599cee73	398	########
599cee73	399	# toke.c
4438c4b7	400	use warnings 'ambiguous' ;
599cee73	401	sub time {}
0453d815	402	my $a = time() ;
4438c4b7	403	no warnings 'ambiguous' ;
0453d815	404	my $b = time() ;
599cee73	405	EXPECT
	406	Ambiguous call resolved as CORE::time(), qualify as such or use & at - line 4.
	407	########
	408	# toke.c
26d16222	409	use warnings ;
0453d815	410	eval <<'EOE';
df0deb90	411	# line 30 "foo"
df0deb90	412	warn "yelp";
0453d815	413	{
0453d815	414	$_ = " \x{123} " ;
	415	}
	416	EOE
	417	EXPECT
df0deb90	418	yelp at foo line 30.
0453d815	419	########
0453d815	420	# toke.c
0453d815	421	my $a = rand + 4 ;
	422	EXPECT
	423	Warning: Use of "rand" without parens is ambiguous at - line 2.
	424	########
	425	# toke.c
	426	$^W = 0 ;
	427	my $a = rand + 4 ;
	428	{
4438c4b7	429	no warnings 'ambiguous' ;
0453d815	430	$a = rand + 4 ;
4438c4b7	431	use warnings 'ambiguous' ;
0453d815	432	$a = rand + 4 ;
	433	}
	434	$a = rand + 4 ;
	435	EXPECT
	436	Warning: Use of "rand" without parens is ambiguous at - line 3.
	437	Warning: Use of "rand" without parens is ambiguous at - line 8.
	438	Warning: Use of "rand" without parens is ambiguous at - line 10.
	439	########
	440	# toke.c
	441	sub fred {};
	442	-fred ;
	443	EXPECT
	444	Ambiguous use of -fred resolved as -&fred() at - line 3.
	445	########
	446	# toke.c
	447	$^W = 0 ;
	448	sub fred {} ;
	449	-fred ;
	450	{
4438c4b7	451	no warnings 'ambiguous' ;
0453d815	452	-fred ;
4438c4b7	453	use warnings 'ambiguous' ;
0453d815	454	-fred ;
	455	}
	456	-fred ;
	457	EXPECT
	458	Ambiguous use of -fred resolved as -&fred() at - line 4.
	459	Ambiguous use of -fred resolved as -&fred() at - line 9.
	460	Ambiguous use of -fred resolved as -&fred() at - line 11.
	461	########
	462	# toke.c
	463	open FOO \|\| time;
	464	EXPECT
	465	Precedence problem: open FOO should be open(FOO) at - line 2.
	466	########
	467	# toke.c
	468	$^W = 0 ;
	469	open FOO \|\| time;
	470	{
e476b1b5	471	no warnings 'precedence' ;
0453d815	472	open FOO \|\| time;
e476b1b5	473	use warnings 'precedence' ;
0453d815	474	open FOO \|\| time;
	475	}
	476	open FOO \|\| time;
	477	EXPECT
	478	Precedence problem: open FOO should be open(FOO) at - line 3.
	479	Precedence problem: open FOO should be open(FOO) at - line 8.
	480	Precedence problem: open FOO should be open(FOO) at - line 10.
	481	########
	482	# toke.c
	483	$^W = 0 ;
	484	foo foo ;
	485	{
4438c4b7	486	no warnings 'ambiguous' ;
0453d815	487	foo foo ;
4438c4b7	488	use warnings 'ambiguous' ;
0453d815	489	foo foo ;
	490	}
	491	foo foo ;
	492	EXPECT
	493	Operator or semicolon missing before *foo at - line 3.
	494	Ambiguous use of * resolved as operator * at - line 3.
	495	Operator or semicolon missing before *foo at - line 8.
	496	Ambiguous use of * resolved as operator * at - line 8.
	497	Operator or semicolon missing before *foo at - line 10.
	498	Ambiguous use of * resolved as operator * at - line 10.
767a6a26	499	########
767a6a26	500	# toke.c
e476b1b5	501	use warnings 'misc' ;
767a6a26	502	my $a = "\m" ;
e476b1b5	503	no warnings 'misc' ;
767a6a26	504	$a = "\m" ;
	505	EXPECT
	506	Unrecognized escape \m passed through at - line 3.
	507	########
	508	# toke.c
	509	use warnings 'portable' ;
	510	my $a = 0b011111111111111111111111111111110 ;
	511	$a = 0b011111111111111111111111111111111 ;
	512	$a = 0b111111111111111111111111111111111 ;
	513	$a = 0x0fffffffe ;
	514	$a = 0x0ffffffff ;
	515	$a = 0x1ffffffff ;
	516	$a = 0037777777776 ;
	517	$a = 0037777777777 ;
	518	$a = 0047777777777 ;
	519	no warnings 'portable' ;
	520	$a = 0b011111111111111111111111111111110 ;
	521	$a = 0b011111111111111111111111111111111 ;
	522	$a = 0b111111111111111111111111111111111 ;
	523	$a = 0x0fffffffe ;
	524	$a = 0x0ffffffff ;
	525	$a = 0x1ffffffff ;
	526	$a = 0037777777776 ;
	527	$a = 0037777777777 ;
	528	$a = 0047777777777 ;
	529	EXPECT
	530	Binary number > 0b11111111111111111111111111111111 non-portable at - line 5.
	531	Hexadecimal number > 0xffffffff non-portable at - line 8.
	532	Octal number > 037777777777 non-portable at - line 11.
	533	########
	534	# toke.c
	535	use warnings 'overflow' ;
	536	my $a = 0b011111111111111111111111111111110 ;
	537	$a = 0b011111111111111111111111111111111 ;
15041a67	538	$a = 0b10000000000000000000000000000000000000000000000000000000000000000 ;
767a6a26	539	$a = 0x0fffffffe ;
767a6a26	540	$a = 0x0ffffffff ;
15041a67	541	$a = 0x10000000000000000 ;
767a6a26	542	$a = 0037777777776 ;
767a6a26	543	$a = 0037777777777 ;
15041a67	544	$a = 002000000000000000000000;
767a6a26	545	no warnings 'overflow' ;
	546	$a = 0b011111111111111111111111111111110 ;
	547	$a = 0b011111111111111111111111111111111 ;
15041a67	548	$a = 0b10000000000000000000000000000000000000000000000000000000000000000 ;
767a6a26	549	$a = 0x0fffffffe ;
767a6a26	550	$a = 0x0ffffffff ;
15041a67	551	$a = 0x10000000000000000 ;
767a6a26	552	$a = 0037777777776 ;
767a6a26	553	$a = 0037777777777 ;
15041a67	554	$a = 002000000000000000000000;
767a6a26	555	EXPECT
	556	Integer overflow in binary number at - line 5.
	557	Integer overflow in hexadecimal number at - line 8.
	558	Integer overflow in octal number at - line 11.
8593bda5	559	########
	560	# toke.c
	561	use warnings 'ambiguous';
	562	"@mjd_previously_unused_array";
	563	no warnings 'ambiguous';
	564	"@mjd_previously_unused_array";
	565	EXPECT
	566	Possible unintended interpolation of @mjd_previously_unused_array in string at - line 3.