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toke

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Last change on this file was 3181, checked in by bird, 19 years ago
perl 5.8.8
File size: 17.5 KB

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1	toke.c AOK
2
3	we seem to have lost a few ambiguous warnings!!
4
5
6	$a = <<;
7	Use of comma-less variable list is deprecated
8	(called 3 times via depcom)
9
10	\1 better written as $1
11	use warnings 'syntax' ;
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
49	Possible attempt to separate words with commas
50	@a = qw(a, b, c) ;
51
52	Possible attempt to put comments in qw() list
53	@a = qw(a b # c) ;
54
55	%s (...) interpreted as function
56	print ("")
57	printf ("")
58	sort ("")
59
60	Ambiguous use of %c{%s%s} resolved to %c%s%s
61	$a = ${time[2]}
62	$a = ${time{2}}
63
64
65	Ambiguous use of %c{%s} resolved to %c%s
66	$a = ${time}
67	sub fred {} $a = ${fred}
68
69	Misplaced _ in number
70	$a = 1_2;
71	$a = 1_2345_6;
72
73	Bareword \"%s\" refers to nonexistent package
74	$a = FRED:: ;
75
76	Ambiguous call resolved as CORE::%s(), qualify as such or use &
77	sub time {}
78	my $a = time()
79
80	Unrecognized escape \\%c passed through
81	$a = "\m" ;
82
83	%s number > %s non-portable
84	my $a = 0b011111111111111111111111111111110 ;
85	$a = 0b011111111111111111111111111111111 ;
86	$a = 0b111111111111111111111111111111111 ;
87	$a = 0x0fffffffe ;
88	$a = 0x0ffffffff ;
89	$a = 0x1ffffffff ;
90	$a = 0037777777776 ;
91	$a = 0037777777777 ;
92	$a = 0047777777777 ;
93
94	Integer overflow in binary number
95	my $a = 0b011111111111111111111111111111110 ;
96	$a = 0b011111111111111111111111111111111 ;
97	$a = 0b111111111111111111111111111111111 ;
98	$a = 0x0fffffffe ;
99	$a = 0x0ffffffff ;
100	$a = 0x1ffffffff ;
101	$a = 0037777777776 ;
102	$a = 0037777777777 ;
103	$a = 0047777777777 ;
104
105	dump() better written as CORE::dump()
106
107	Use of /c modifier is meaningless without /g
108
109	Use of /c modifier is meaningless in s///
110
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
126	__END__
127	# toke.c
128	use warnings 'deprecated' ;
129	format STDOUT =
130	@<<< @\|\|\| @>>> @>>>
131	$a $b "abc" 'def'
132	.
133	no warnings 'deprecated' ;
134	format STDOUT =
135	@<<< @\|\|\| @>>> @>>>
136	$a $b "abc" 'def'
137	.
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.
142	########
143	# toke.c
144	use warnings 'deprecated' ;
145	$a = <<;
146
147	no warnings 'deprecated' ;
148	$a = <<;
149
150	EXPECT
151	Use of bare << to mean <<"" is deprecated at - line 3.
152	########
153	# toke.c
154	use warnings 'syntax' ;
155	s/(abc)/\1/;
156	no warnings 'syntax' ;
157	s/(abc)/\1/;
158	EXPECT
159	\1 better written as $1 at - line 3.
160	########
161	# toke.c
162	use warnings 'semicolon' ;
163	$a = 1
164	&time ;
165	no warnings 'semicolon' ;
166	$a = 1
167	&time ;
168	EXPECT
169	Semicolon seems to be missing at - line 3.
170	########
171	# toke.c
172	use warnings 'syntax' ;
173	my $a =+ 2 ;
174	$a =- 2 ;
175	$a =* 2 ;
176	$a =% 2 ;
177	$a =& 2 ;
178	$a =. 2 ;
179	$a =^ 2 ;
180	$a =\| 2 ;
181	$a =< 2 ;
182	$a =/ 2 ;
183	EXPECT
184	Reversed += operator at - line 3.
185	Reversed -= operator at - line 4.
186	Reversed *= operator at - line 5.
187	Reversed %= operator at - line 6.
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	syntax error at - line 8, near "=."
194	syntax error at - line 9, near "=^"
195	syntax error at - line 10, near "=\|"
196	Unterminated <> operator at - line 11.
197	########
198	# toke.c
199	no warnings 'syntax' ;
200	my $a =+ 2 ;
201	$a =- 2 ;
202	$a =* 2 ;
203	$a =% 2 ;
204	$a =& 2 ;
205	$a =. 2 ;
206	$a =^ 2 ;
207	$a =\| 2 ;
208	$a =< 2 ;
209	$a =/ 2 ;
210	EXPECT
211	syntax error at - line 8, near "=."
212	syntax error at - line 9, near "=^"
213	syntax error at - line 10, near "=\|"
214	Unterminated <> operator at - line 11.
215	########
216	# toke.c
217	use warnings 'syntax' ;
218	my $a = $a[1,2] ;
219	no warnings 'syntax' ;
220	my $a = $a[1,2] ;
221	EXPECT
222	Multidimensional syntax $a[1,2] not supported at - line 3.
223	########
224	# toke.c
225	use warnings 'syntax' ;
226	sub fred {} ; $SIG{TERM} = fred;
227	no warnings 'syntax' ;
228	$SIG{TERM} = fred;
229	EXPECT
230	You need to quote "fred" at - line 3.
231	########
232	# toke.c
233	use warnings 'syntax' ;
234	@a[3] = 2;
235	@a{3} = 2;
236	no warnings 'syntax' ;
237	@a[3] = 2;
238	@a{3} = 2;
239	EXPECT
240	Scalar value @a[3] better written as $a[3] at - line 3.
241	Scalar value @a{3} better written as $a{3} at - line 4.
242	########
243	# toke.c
244	use warnings 'syntax' ;
245	$_ = "ab" ;
246	s/(ab)/\1/e;
247	no warnings 'syntax' ;
248	$_ = "ab" ;
249	s/(ab)/\1/e;
250	EXPECT
251	Can't use \1 to mean $1 in expression at - line 4.
252	########
253	# toke.c
254	use warnings 'reserved' ;
255	$a = abc;
256	$a = { def
257
258	=> 1 };
259	no warnings 'reserved' ;
260	$a = abc;
261	EXPECT
262	Unquoted string "abc" may clash with future reserved word at - line 3.
263	########
264	# toke.c
265	use warnings 'qw' ;
266	@a = qw(a, b, c) ;
267	no warnings 'qw' ;
268	@a = qw(a, b, c) ;
269	EXPECT
270	Possible attempt to separate words with commas at - line 3.
271	########
272	# toke.c
273	use warnings 'qw' ;
274	@a = qw(a b #) ;
275	no warnings 'qw' ;
276	@a = qw(a b #) ;
277	EXPECT
278	Possible attempt to put comments in qw() list at - line 3.
279	########
280	# toke.c
281	use warnings 'syntax' ;
282	print ("")
283	EXPECT
284	print (...) interpreted as function at - line 3.
285	########
286	# toke.c
287	no warnings 'syntax' ;
288	print ("")
289	EXPECT
290
291	########
292	# toke.c
293	use warnings 'syntax' ;
294	printf ("")
295	EXPECT
296	printf (...) interpreted as function at - line 3.
297	########
298	# toke.c
299	no warnings 'syntax' ;
300	printf ("")
301	EXPECT
302
303	########
304	# toke.c
305	use warnings 'syntax' ;
306	sort ("")
307	EXPECT
308	sort (...) interpreted as function at - line 3.
309	########
310	# toke.c
311	no warnings 'syntax' ;
312	sort ("")
313	EXPECT
314
315	########
316	# toke.c
317	use warnings 'ambiguous' ;
318	$a = ${time[2]};
319	no warnings 'ambiguous' ;
320	$a = ${time[2]};
321	EXPECT
322	Ambiguous use of ${time[...]} resolved to $time[...] at - line 3.
323	########
324	# toke.c
325	use warnings 'ambiguous' ;
326	$a = ${time{2}};
327	EXPECT
328	Ambiguous use of ${time{...}} resolved to $time{...} at - line 3.
329	########
330	# toke.c
331	no warnings 'ambiguous' ;
332	$a = ${time{2}};
333	EXPECT
334
335	########
336	# toke.c
337	use warnings 'ambiguous' ;
338	$a = ${time} ;
339	no warnings 'ambiguous' ;
340	$a = ${time} ;
341	EXPECT
342	Ambiguous use of ${time} resolved to $time at - line 3.
343	########
344	# toke.c
345	use warnings 'ambiguous' ;
346	sub fred {}
347	$a = ${fred} ;
348	no warnings 'ambiguous' ;
349	$a = ${fred} ;
350	EXPECT
351	Ambiguous use of ${fred} resolved to $fred at - line 4.
352	########
353	# toke.c
354	use warnings 'syntax' ;
355	$a = _123; print "$a\n"; #( 3 string)
356	$a = 1_23; print "$a\n";
357	$a = 12_3; print "$a\n";
358	$a = 123_; print "$a\n"; # 6
359	$a = _+123; print "$a\n"; # 7 string)
360	$a = +_123; print "$a\n"; #( 8 string)
361	$a = +1_23; print "$a\n";
362	$a = +12_3; print "$a\n";
363	$a = +123_; print "$a\n"; # 11
364	$a = _-123; print "$a\n"; #(12 string)
365	$a = -_123; print "$a\n"; #(13 string)
366	$a = -1_23; print "$a\n";
367	$a = -12_3; print "$a\n";
368	$a = -123_; print "$a\n"; # 16
369	$a = 123._456; print "$a\n"; # 17
370	$a = 123.4_56; print "$a\n";
371	$a = 123.45_6; print "$a\n";
372	$a = 123.456_; print "$a\n"; # 20
373	$a = +123._456; print "$a\n"; # 21
374	$a = +123.4_56; print "$a\n";
375	$a = +123.45_6; print "$a\n";
376	$a = +123.456_; print "$a\n"; # 24
377	$a = -123._456; print "$a\n"; # 25
378	$a = -123.4_56; print "$a\n";
379	$a = -123.45_6; print "$a\n";
380	$a = -123.456_; print "$a\n"; # 28
381	$a = 123.456E_12; printf("%.0f\n", $a); # 29
382	$a = 123.456E1_2; printf("%.0f\n", $a);
383	$a = 123.456E12_; printf("%.0f\n", $a); # 31
384	$a = 123.456E_+12; printf("%.0f\n", $a); # 32
385	$a = 123.456E+_12; printf("%.0f\n", $a); # 33
386	$a = 123.456E+1_2; printf("%.0f\n", $a);
387	$a = 123.456E+12_; printf("%.0f\n", $a); # 35
388	$a = 123.456E_-12; print "$a\n"; # 36
389	$a = 123.456E-_12; print "$a\n"; # 37
390	$a = 123.456E-1_2; print "$a\n";
391	$a = 123.456E-12_; print "$a\n"; # 39
392	$a = 1__23; print "$a\n"; # 40
393	$a = 12.3__4; print "$a\n"; # 41
394	$a = 12.34e1__2; printf("%.0f\n", $a); # 42
395	no warnings 'syntax' ;
396	$a = _123; print "$a\n";
397	$a = 1_23; print "$a\n";
398	$a = 12_3; print "$a\n";
399	$a = 123_; print "$a\n";
400	$a = _+123; print "$a\n";
401	$a = +_123; print "$a\n";
402	$a = +1_23; print "$a\n";
403	$a = +12_3; print "$a\n";
404	$a = +123_; print "$a\n";
405	$a = _-123; print "$a\n";
406	$a = -_123; print "$a\n";
407	$a = -1_23; print "$a\n";
408	$a = -12_3; print "$a\n";
409	$a = -123_; print "$a\n";
410	$a = 123._456; print "$a\n";
411	$a = 123.4_56; print "$a\n";
412	$a = 123.45_6; print "$a\n";
413	$a = 123.456_; print "$a\n";
414	$a = +123._456; print "$a\n";
415	$a = +123.4_56; print "$a\n";
416	$a = +123.45_6; print "$a\n";
417	$a = +123.456_; print "$a\n";
418	$a = -123._456; print "$a\n";
419	$a = -123.4_56; print "$a\n";
420	$a = -123.45_6; print "$a\n";
421	$a = -123.456_; print "$a\n";
422	$a = 123.456E_12; printf("%.0f\n", $a);
423	$a = 123.456E1_2; printf("%.0f\n", $a);
424	$a = 123.456E12_; printf("%.0f\n", $a);
425	$a = 123.456E_+12; printf("%.0f\n", $a);
426	$a = 123.456E+_12; printf("%.0f\n", $a);
427	$a = 123.456E+1_2; printf("%.0f\n", $a);
428	$a = 123.456E+12_; printf("%.0f\n", $a);
429	$a = 123.456E_-12; print "$a\n";
430	$a = 123.456E-_12; print "$a\n";
431	$a = 123.456E-1_2; print "$a\n";
432	$a = 123.456E-12_; print "$a\n";
433	$a = 1__23; print "$a\n";
434	$a = 12.3__4; print "$a\n";
435	$a = 12.34e1__2; printf("%.0f\n", $a);
436	EXPECT
437	OPTIONS regex
438	Misplaced _ in number at - line 6.
439	Misplaced _ in number at - line 11.
440	Misplaced _ in number at - line 16.
441	Misplaced _ in number at - line 17.
442	Misplaced _ in number at - line 20.
443	Misplaced _ in number at - line 21.
444	Misplaced _ in number at - line 24.
445	Misplaced _ in number at - line 25.
446	Misplaced _ in number at - line 28.
447	Misplaced _ in number at - line 29.
448	Misplaced _ in number at - line 31.
449	Misplaced _ in number at - line 32.
450	Misplaced _ in number at - line 33.
451	Misplaced _ in number at - line 35.
452	Misplaced _ in number at - line 36.
453	Misplaced _ in number at - line 37.
454	Misplaced _ in number at - line 39.
455	Misplaced _ in number at - line 40.
456	Misplaced _ in number at - line 41.
457	Misplaced _ in number at - line 42.
458	_123
459	123
460	123
461	123
462	123
463	_123
464	123
465	123
466	123
467	-123
468	-_123
469	-123
470	-123
471	-123
472	123.456
473	123.456
474	123.456
475	123.456
476	123.456
477	123.456
478	123.456
479	123.456
480	-123.456
481	-123.456
482	-123.456
483	-123.456
484	123456000000000
485	123456000000000
486	123456000000000
487	123456000000000
488	123456000000000
489	123456000000000
490	123456000000000
491	1.23456e-0?10
492	1.23456e-0?10
493	1.23456e-0?10
494	1.23456e-0?10
495	123
496	12.34
497	12340000000000
498	_123
499	123
500	123
501	123
502	123
503	_123
504	123
505	123
506	123
507	-123
508	-_123
509	-123
510	-123
511	-123
512	123.456
513	123.456
514	123.456
515	123.456
516	123.456
517	123.456
518	123.456
519	123.456
520	-123.456
521	-123.456
522	-123.456
523	-123.456
524	123456000000000
525	123456000000000
526	123456000000000
527	123456000000000
528	123456000000000
529	123456000000000
530	123456000000000
531	1.23456e-0?10
532	1.23456e-0?10
533	1.23456e-0?10
534	1.23456e-0?10
535	123
536	12.34
537	12340000000000
538	########
539	# toke.c
540	use warnings 'bareword' ;
541	#line 25 "bar"
542	$a = FRED:: ;
543	no warnings 'bareword' ;
544	#line 25 "bar"
545	$a = FRED:: ;
546	EXPECT
547	Bareword "FRED::" refers to nonexistent package at bar line 25.
548	########
549	# toke.c
550	use warnings 'ambiguous' ;
551	sub time {}
552	my $a = time() ;
553	no warnings 'ambiguous' ;
554	my $b = time() ;
555	EXPECT
556	Ambiguous call resolved as CORE::time(), qualify as such or use & at - line 4.
557	########
558	# toke.c
559	use warnings ;
560	eval <<'EOE';
561	# line 30 "foo"
562	warn "yelp";
563	{
564	$_ = " \x{123} " ;
565	}
566	EOE
567	EXPECT
568	yelp at foo line 30.
569	########
570	# toke.c
571	my $a = rand + 4 ;
572	EXPECT
573	Warning: Use of "rand" without parentheses is ambiguous at - line 2.
574	########
575	# toke.c
576	$^W = 0 ;
577	my $a = rand + 4 ;
578	{
579	no warnings 'ambiguous' ;
580	$a = rand + 4 ;
581	use warnings 'ambiguous' ;
582	$a = rand + 4 ;
583	}
584	$a = rand + 4 ;
585	EXPECT
586	Warning: Use of "rand" without parentheses is ambiguous at - line 3.
587	Warning: Use of "rand" without parentheses is ambiguous at - line 8.
588	Warning: Use of "rand" without parentheses is ambiguous at - line 10.
589	########
590	# toke.c
591	sub fred {};
592	-fred ;
593	EXPECT
594	Ambiguous use of -fred resolved as -&fred() at - line 3.
595	########
596	# toke.c
597	$^W = 0 ;
598	sub fred {} ;
599	-fred ;
600	{
601	no warnings 'ambiguous' ;
602	-fred ;
603	use warnings 'ambiguous' ;
604	-fred ;
605	}
606	-fred ;
607	EXPECT
608	Ambiguous use of -fred resolved as -&fred() at - line 4.
609	Ambiguous use of -fred resolved as -&fred() at - line 9.
610	Ambiguous use of -fred resolved as -&fred() at - line 11.
611	########
612	# toke.c
613	open FOO \|\| time;
614	EXPECT
615	Precedence problem: open FOO should be open(FOO) at - line 2.
616	########
617	# toke.c (and [perl #16184])
618	open FOO => "<&0"; close FOO;
619	EXPECT
620	########
621	# toke.c
622	$^W = 0 ;
623	open FOO \|\| time;
624	{
625	no warnings 'precedence' ;
626	open FOO \|\| time;
627	use warnings 'precedence' ;
628	open FOO \|\| time;
629	}
630	open FOO \|\| time;
631	EXPECT
632	Precedence problem: open FOO should be open(FOO) at - line 3.
633	Precedence problem: open FOO should be open(FOO) at - line 8.
634	Precedence problem: open FOO should be open(FOO) at - line 10.
635	########
636	# toke.c
637	$^W = 0 ;
638	foo foo ;
639	{
640	no warnings 'ambiguous' ;
641	foo foo ;
642	use warnings 'ambiguous' ;
643	foo foo ;
644	}
645	foo foo ;
646	EXPECT
647	Operator or semicolon missing before *foo at - line 3.
648	Ambiguous use of * resolved as operator * at - line 3.
649	Operator or semicolon missing before *foo at - line 8.
650	Ambiguous use of * resolved as operator * at - line 8.
651	Operator or semicolon missing before *foo at - line 10.
652	Ambiguous use of * resolved as operator * at - line 10.
653	########
654	# toke.c
655	use warnings 'misc' ;
656	my $a = "\m" ;
657	no warnings 'misc' ;
658	$a = "\m" ;
659	EXPECT
660	Unrecognized escape \m passed through at - line 3.
661	########
662	# toke.c
663	use warnings 'portable' ;
664	my $a = 0b011111111111111111111111111111110 ;
665	$a = 0b011111111111111111111111111111111 ;
666	$a = 0b111111111111111111111111111111111 ;
667	$a = 0x0fffffffe ;
668	$a = 0x0ffffffff ;
669	$a = 0x1ffffffff ;
670	$a = 0037777777776 ;
671	$a = 0037777777777 ;
672	$a = 0047777777777 ;
673	no warnings 'portable' ;
674	$a = 0b011111111111111111111111111111110 ;
675	$a = 0b011111111111111111111111111111111 ;
676	$a = 0b111111111111111111111111111111111 ;
677	$a = 0x0fffffffe ;
678	$a = 0x0ffffffff ;
679	$a = 0x1ffffffff ;
680	$a = 0037777777776 ;
681	$a = 0037777777777 ;
682	$a = 0047777777777 ;
683	EXPECT
684	Binary number > 0b11111111111111111111111111111111 non-portable at - line 5.
685	Hexadecimal number > 0xffffffff non-portable at - line 8.
686	Octal number > 037777777777 non-portable at - line 11.
687	########
688	# toke.c
689	use warnings 'overflow' ;
690	my $a = 0b011111111111111111111111111111110 ;
691	$a = 0b011111111111111111111111111111111 ;
692	$a = 0b10000000000000000000000000000000000000000000000000000000000000000 ;
693	$a = 0x0fffffffe ;
694	$a = 0x0ffffffff ;
695	$a = 0x10000000000000000 ;
696	$a = 0037777777776 ;
697	$a = 0037777777777 ;
698	$a = 002000000000000000000000;
699	no warnings 'overflow' ;
700	$a = 0b011111111111111111111111111111110 ;
701	$a = 0b011111111111111111111111111111111 ;
702	$a = 0b10000000000000000000000000000000000000000000000000000000000000000 ;
703	$a = 0x0fffffffe ;
704	$a = 0x0ffffffff ;
705	$a = 0x10000000000000000 ;
706	$a = 0037777777776 ;
707	$a = 0037777777777 ;
708	$a = 002000000000000000000000;
709	EXPECT
710	Integer overflow in binary number at - line 5.
711	Integer overflow in hexadecimal number at - line 8.
712	Integer overflow in octal number at - line 11.
713	########
714	# toke.c
715	BEGIN { $^C = 1; }
716	use warnings 'misc';
717	dump;
718	CORE::dump;
719	EXPECT
720	dump() better written as CORE::dump() at - line 4.
721	- syntax OK
722	########
723	# toke.c
724	use warnings 'misc';
725	use subs qw/dump/;
726	sub dump { print "no warning for overriden dump\n"; }
727	dump;
728	EXPECT
729	no warning for overriden dump
730	########
731	# toke.c
732	use warnings 'ambiguous';
733	"@mjd_previously_unused_array";
734	no warnings 'ambiguous';
735	"@mjd_previously_unused_array";
736	EXPECT
737	Possible unintended interpolation of @mjd_previously_unused_array in string at - line 3.
738	########
739	# toke.c
740	# The \q should warn, the \_ should NOT warn.
741	use warnings 'misc';
742	"foo" =~ /\q/;
743	"bar" =~ /\_/;
744	no warnings 'misc';
745	"foo" =~ /\q/;
746	"bar" =~ /\_/;
747	EXPECT
748	Unrecognized escape \q passed through at - line 4.
749	########
750	# toke.c
751	# 20020328 [email protected] at behest of [email protected]
752	use warnings 'regexp';
753	"foo" =~ /foo/c;
754	"foo" =~ /foo/cg;
755	no warnings 'regexp';