X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/abc667d141be9d100fa9e0402f7809147d1f69b9..c9de86d555b2cc844acfe134ffe61228163a50ea:/t/comp/parser.t

diff --git a/t/comp/parser.t b/t/comp/parser.t
index b50d8af..6cbba9b 100644
--- a/t/comp/parser.t
+++ b/t/comp/parser.t
@@ -3,13 +3,52 @@
 # Checks if the parser behaves correctly in edge cases
 # (including weird syntax errors)
 
-BEGIN {
-    chdir 't' if -d 't';
-    @INC = '../lib';
+print "1..104\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;
 }
 
-require "./test.pl";
-plan( tests => 37 );
+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' );
@@ -23,6 +62,13 @@ 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' );
@@ -52,6 +98,9 @@ like( $@, qr/error/, 'lexical block discarded by yacc' );
 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)
 
@@ -89,6 +138,9 @@ ${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.
@@ -96,7 +148,8 @@ my %data = ( foo => "\n" );
 print "#";
 print(
 $data{foo});
-pass();
+$test = $test + 1;
+print "ok $test\n";
 
 # Bug #21875
 # { q.* => ... } should be interpreted as hash, not block
@@ -114,6 +167,212 @@ EOF
 {
     my ($expect, $eval) = split / /, $line, 2;
     my $result = eval $eval;
-    ok($@ eq  '', "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,$s,$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");
+}
+
+my $this_file = qr/parser\.t(?:\.[bl]eb?)?$/;
+#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
+
+{
+    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 ""');
+}
+
+__END__
+# Don't add new tests HERE. See note above