perl/t/comp/parser.t
Andrew Hewus Fresh 54446d4f70 Calculate conflict markers instead of hardcoding
It turns out that some tooling (Game of Trees) has special handling for
conflict markers and will continually mark files that have them.

Since the test doesn't actually need them to be expanded,
calculate them instead to not trigger the detection.
2023-02-17 21:23:43 +08:00

781 lines
22 KiB
Perl

#!./perl
# Checks if the parser behaves correctly in edge cases
# (including weird syntax errors)
BEGIN {
@INC = qw(. ../lib);
chdir 't' if -d 't';
}
print "1..191\n";
sub failed {
my ($got, $expected, $name) = @_;
print "not ok $test - $name\n";
my @caller = caller(1);
print "# Failed test at $caller[1] line $caller[2]\n";
if (defined $got) {
print "# Got '$got'\n";
} else {
print "# Got undef\n";
}
print "# Expected $expected\n";
return;
}
sub like {
my ($got, $pattern, $name) = @_;
$test = $test + 1;
if (defined $got && $got =~ $pattern) {
print "ok $test - $name\n";
# Principle of least surprise - maintain the expected interface, even
# though we aren't using it here (yet).
return 1;
}
failed($got, $pattern, $name);
}
sub is {
my ($got, $expect, $name) = @_;
$test = $test + 1;
if (defined $expect) {
if (defined $got && $got eq $expect) {
print "ok $test - $name\n";
return 1;
}
failed($got, "'$expect'", $name);
} else {
if (!defined $got) {
print "ok $test - $name\n";
return 1;
}
failed($got, 'undef', $name);
}
}
eval '%@x=0;';
like( $@, qr/^Can't modify hash dereference in repeat \(x\)/, '%@x=0' );
# Bug 20010422.005 (#6874)
eval q{{s//${}/; //}};
like( $@, qr/syntax error/, 'syntax error, used to dump core' );
# Bug 20010528.007 (#7052)
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 q/"\o{"/;
like( $@, qr/^Missing right brace on \\o/,
'syntax error in string with incomplete \o' );
eval q/"\ofoo"/;
like( $@, qr/^Missing braces on \\o/,
'syntax error in string with incomplete \o' );
eval "a.b.c.d.e.f;sub";
like( $@, qr/^Illegal declaration of anonymous subroutine/,
'found by Markov chain stress testing' );
# Bug 20010831.001 (#7605)
eval '($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( $@, qr/^Can't modify constant item in undef operator /,
'undefing constant causes a segfault in 5.6.1 [ID 20010906.019 (#7642)]' );
eval 'read($bla, FILE, 1);';
like( $@, qr/^Can't modify constant item in read /,
'read($var, FILE, 1) segfaults on 5.6.1 [ID 20011025.054 (#7847)]' );
# 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}\{/, '(?^: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});
$test = $test + 1;
print "ok $test\n";
# 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 $eval;
is($@, '', "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( $@, qr/syntax error/, "use without body" );
}
# [perl #2738] perl segfautls on input
{
eval q{ sub _ <> {} };
like($@, 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($@, qr/Illegal declaration of subroutine main::_/, "__FILE__ as prototype");
}
# tests for "Bad name"
eval q{ foo::$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);
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);
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);
@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' );
{
# RT #70934
# check both the specific case in the ticket, and a few other paths into
# S_scan_ident()
# simplify long ids
my $x100 = "x" x 256;
my $xFE = "x" x 254;
my $xFD = "x" x 253;
my $xFC = "x" x 252;
my $xFB = "x" x 251;
eval qq[ \$#$xFB ];
is($@, "", "251 character \$# sigil ident ok");
eval qq[ \$#$xFC ];
like($@, qr/Identifier too long/, "too long id in \$# sigil ctx");
eval qq[ \$$xFB ];
is($@, "", "251 character \$ sigil ident ok");
eval qq[ \$$xFC ];
like($@, qr/Identifier too long/, "too long id in \$ sigil ctx");
eval qq[ %$xFB ];
is($@, "", "251 character % sigil ident ok");
eval qq[ %$xFC ];
like($@, qr/Identifier too long/, "too long id in % sigil ctx");
eval qq[ \\&$xFB ]; # take a ref since I don't want to call it
is($@, "", "251 character & sigil ident ok");
eval qq[ \\&$xFC ];
like($@, qr/Identifier too long/, "too long id in & sigil ctx");
eval qq[ *$xFC ];
is($@, "", "252 character glob ident ok");
eval qq[ *$xFD ];
like($@, qr/Identifier too long/, "too long id in glob ctx");
eval qq[ for $xFC ];
like($@, qr/^Missing \$ on loop variable /,
"252 char id ok, but a different error");
eval qq[ for $xFD; ];
like($@, qr/^Missing \$ on loop variable /, "too long id in for ctx");
# the specific case from the ticket
# however the parsing code in yyl_foreach has now changed
my $x = "x" x 257;
eval qq[ for $x ];
like($@, qr/^Missing \$ on loop variable /, "too long id ticket case");
# as PL_tokenbuf is now PL_parser->tokenbuf, the "buffer overflow" that was
# reported in GH #9993 now corrupts some other part of the parser structure.
# Currently, that seems to be the line number. Hence this test will fail if
# the fix from commit 0b3da58dfdc35079 is reversed. (However, as the later
# commit 61bc22580524a6d9 changed the code (now) in yyl_foreach() from
# scan_ident() to scan_word(), to recreate the problem one needs to apply
# the buggy change to the calculation of the variable `e` in scan_word()
# instead.
my $x = "x" x 260;
eval qq[ for my $x \$foo ];
like($@, qr/at \(eval \d+\) line 1[,.]/, "line number is reported correctly");
}
{
is(exists &zlonk, '', 'sub not present');
eval qq[ {sub zlonk} ];
is($@, '', 'sub declaration followed by a closing curly');
is(exists &zlonk, 1, 'sub now stubbed');
is(defined &zlonk, '', 'but no body defined');
}
{
no warnings;
# [perl #113016] CORE::print::foo
sub CORE'print'foo { 43 } # apostrophes intentional; do not tempt fate
sub CORE'foo'bar { 43 }
is CORE::print::foo, 43, 'CORE::print::foo is not CORE::print ::foo';
is scalar eval "CORE::foo'bar", 43, "CORE::foo'bar is not an error";
}
# bug #71748
eval q{
$_ = "";
s/(.)/
{
#
}->{$1};
/e;
1;
};
is($@, "", "multiline whitespace inside substitute expression");
eval '@A =~ s/a/b/; # compilation error
sub tahi {}
sub rua;
sub toru ($);
sub wha :lvalue;
sub rima ($%&*$&*\$%\*&$%*&) :method;
sub ono :lvalue { die }
sub whitu (_) { die }
sub waru ($;) :method { die }
sub iwa { die }
BEGIN { }';
is $::{tahi}, undef, 'empty sub decl ignored after compilation error';
is $::{rua}, undef, 'stub decl ignored after compilation error';
is $::{toru}, undef, 'stub+proto decl ignored after compilation error';
is $::{wha}, undef, 'stub+attr decl ignored after compilation error';
is $::{rima}, undef, 'stub+proto+attr ignored after compilation error';
is $::{ono}, undef, 'sub decl with attr ignored after compilation error';
is $::{whitu}, undef, 'sub decl w proto ignored after compilation error';
is $::{waru}, undef, 'sub w attr+proto ignored after compilation error';
is $::{iwa}, undef, 'non-empty sub decl ignored after compilation error';
is *BEGIN{CODE}, undef, 'BEGIN leaves no stub after compilation error';
$test = $test + 1;
"ok $test - format inside re-eval" =~ /(?{
format =
@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$_
.
write
}).*/;
eval '
"${;
=pod
=cut
}";
';
is $@, "", 'pod inside string in string eval';
"${;
=pod
=cut
}";
print "ok ", ++$test, " - pod inside string outside of string eval\n";
like "blah blah blah\n", qr/${\ <<END
blah blah blah
END
}/, 'here docs in multiline quoted construct';
like "blah blah blah\n", eval q|qr/${\ <<END
blah blah blah
END
}/|, 'here docs in multiline quoted construct in string eval';
# Unterminated here-docs in subst in eval; used to crash
eval 's/${<<END}//';
eval 's//${<<END}/';
print "ok ", ++$test, " - unterminated here-docs in s/// in string eval\n";
{
no warnings qw(syntax deprecated);
sub 'Hello'_he_said (_);
}
is prototype "Hello::_he_said", '_', 'initial tick in sub declaration';
{
my @x = 'string';
is(eval q{ "$x[0]->strung" }, 'string->strung',
'literal -> after an array subscript within ""');
@x = ['string'];
# this used to give "string"
like("$x[0]-> [0]", qr/^ARRAY\([^)]*\)-> \[0\]\z/,
'literal -> [0] after an array subscript within ""');
}
eval 'no if $] >= 5.17.4 warnings => "deprecated"';
is 1,1, ' no crash for "no ... syntax error"';
for my $pkg(()){}
$pkg = 3;
is $pkg, 3, '[perl #114942] for my $foo()){} $foo';
# Check that format 'Foo still works after removing the hack from
# force_word
{
no warnings qw(syntax deprecated);
$test++;
format 'one =
ok @<< - format 'foo still works
$test
.
}
{
local $~ = "one";
write();
}
$test++;
format ::two =
ok @<< - format ::foo still works
$test
.
{
local $~ = "two";
write();
}
for(__PACKAGE__) {
eval '$_=42';
is $_, 'main', '__PACKAGE__ is read-only';
}
$file = __FILE__;
BEGIN{ ${"_<".__FILE__} = \1 }
is __FILE__, $file,
'no __FILE__ corruption when setting CopFILESV to a ref';
eval 'Fooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo'
.'oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo'
.'oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo'
.'oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo'
.'oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo'
.'ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo';
like $@, "^Identifier too long at ", 'ident buffer overflow';
eval 'for my a1b $i (1) {}';
# ng: 'Missing $ on loop variable'
like $@, "^No such class a1b at ", 'TYPE of my of for statement';
eval 'method {} {$_,undef}';
like $@, qq/^Can't call method "method" on unblessed reference at /,
'method BLOCK {...} does not try to disambiguate';
eval '#line 1 maggapom
if ($a>3) { $a ++; }
else {printf(1/0);}';
is $@, "Illegal division by zero at maggapom line 2.\n",
'else {foo} line number (no space after {) [perl #122695]';
# parentheses needed for this to fail an assertion in S_maybe_multideref
is +(${[{a=>214}]}[0])->{a}, 214, '($array[...])->{...}';
# This used to fail an assertion because of the OPf_SPECIAL flag on an
# OP_GV that started out as an OP_CONST.
sub FILE1 () { 1 }
sub dummy { tell FILE1 }
# More potential multideref assertion failures
# OPf_PARENS on OP_RV2SV in subscript
$x[($_)];
is(1,1, "PASS: Previous line successfully parsed. OPf_PARENS on OP_RV2SV");
# OPf_SPECIAL on OP_GV in subscript
$x[FILE1->[0]];
is(1,1, "PASS: Previous line successfully parsed. OPf_SPECIAL on OP_GV");
# Used to crash [perl #123542]
eval 's /${<>{}) //';
# Also used to crash [perl #123652]
eval{$1=eval{a:}};
# Used to fail assertions [perl #123753]
eval "map+map";
eval "grep+grep";
# ALso failed an assertion [perl #123848]
{
local $SIG{__WARN__} = sub{};
eval 'my $_; m// ~~ 0';
}
# Used to crash [perl #125679]
eval 'BEGIN {$^H=-1} \eval=time';
# Used to fail an assertion [perl #129073]
{
local $SIG{__WARN__} = sub{};
eval '${p{};sub p}()';
}
# RT #124207 syntax error during stringify can leave stringify op
# with multiple children and assertion failures
eval 'qq{@{0]}${}},{})';
is(1, 1, "RT #124207");
# RT #127993 version control conflict markers
my @conflict_markers = map { $_ x 7 } qw( < = > );
" this should keep working
$conflict_markers[0]
" =~ /
$conflict_markers[2]
/;
for my $marker (@conflict_markers) {
eval "$marker";
like $@, qr/^Version control conflict marker at \(eval \d+\) line 1, near "$marker"/, "VCS marker '$marker' at beginning";
eval "\$_\n$marker";
like $@, qr/^Version control conflict marker at \(eval \d+\) line 2, near "$marker"/, "VCS marker '$marker' after value";
eval "\n\$_ =\n$marker";
like $@, qr/^Version control conflict marker at \(eval \d+\) line 3, near "$marker"/, "VCS marker '$marker' after operator";
}
# keys assignments in weird contexts (mentioned in perl #128260)
eval 'keys(%h) .= "00"';
is $@, "", 'keys .=';
eval 'sub { read $fh, keys %h, 0 }';
is $@, "", 'read into keys';
eval 'substr keys(%h),0,=3';
is $@, "", 'substr keys assignment';
{ # very large utf8 char in error message was overflowing buffer
if (length sprintf("%x", ~0) <= 8) {
is 1, 1, "skip because overflows on 32-bit machine";
}
else {
no warnings;
eval "q" . chr(100000000064);
like $@, qr/Can't find string terminator "." anywhere before EOF/,
'RT 128952';
}
}
# RT #130311: many parser shifts before a reduce
{
eval '[' . ('{' x 300);
like $@, qr/Missing right curly or square bracket/, 'RT #130311';
}
# RT #130815: crash in ck_return for malformed code
{
eval 'm(@{if(0){sub d{]]])}return';
like $@, qr/^syntax error at \(eval \d+\) line 1, near "\{\]"/,
'RT #130815: null pointer deref';
}
# Add new tests HERE (above this line)
# bug #74022: Loop on characters in \p{OtherIDContinue}
# This test hangs if it fails.
eval chr 0x387; # forces loading of utf8.pm
is(1,1, '[perl #74022] Parser looping on OtherIDContinue chars');
# 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");
}
my $this_file = qr/parser\.t(?:\.[bl]eb?)?$/;
#line 3
1 unless
1;
check($this_file, 5, "[perl #118931]");
#line 3
check($this_file, 3, "bare line");
# line 5
check($this_file, 5, "bare line with leading space");
#line 7
check($this_file, 7, "trailing space still valid");
# line 11
check($this_file, 11, "leading and trailing");
# line 13
check($this_file, 13, "leading tab");
#line 17
check($this_file, 17, "middle tab");
#line 19
check($this_file, 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");
#line 77sevenseven
check(qr/^"BBFRPRAFPGHPP$/, 49, "need a space after the line number");
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
sub check_line ($$) {
my ($line, $name) = @_;
my (undef, undef, $got_line) = caller;
is ($got_line, $line, $name);
}
#line 531 parser.t
<<EOU; check_line(531, 'on same line as heredoc');
EOU
s//<<EOV/e if 0;
EOV
check_line(535, 'after here-doc in quotes');
<<EOW; <<EOX;
${check_line(537, 'first line of interp in here-doc');;
check_line(538, 'second line of interp in here-doc');}
EOW
${check_line(540, 'first line of interp in second here-doc on same line');;
check_line(541, 'second line of interp in second heredoc on same line');}
EOX
eval <<'EVAL';
#line 545
"${<<EOY; <<EOZ}";
${check_line(546, 'first line of interp in here-doc in quotes in eval');;
check_line(547, 'second line of interp in here-doc in quotes in eval');}
EOY
${check_line(549, '1st line of interp in 2nd hd, same line in q in eval');;
check_line(550, '2nd line of interp in 2nd hd, same line in q in eval');}
EOZ
EVAL
time
#line 42
;check_line(42, 'line number after "nullary\n#line"');
"${
#line 53
_}";
check_line(54, 'line number after qq"${#line}"');
#line 24
"
${check_line(25, 'line number inside qq/<newline>${...}/')}";
<<"END";
${;
#line 625
}
END
check_line(627, 'line number after heredoc containing #line');
#line 638
<<ENE . ${
ENE
"bar"};
check_line(642, 'line number after ${expr} surrounding heredoc body');
__END__
# Don't add new tests HERE. See "Add new tests HERE" above.