`.raku` / Typecheck errors hanging on LibXML::Node objects

[dwarring]

The following is attempting to iterate a mix of LibXML::Text and LibXML::Element nodes as LibXML::Element. It hangs rather than producing a typecheck failure.

use LibXML::Document;
use LibXML::Element;

my LibXML::Document $doc .= parse: q:to<END>;
<root>
    Some text
    <anElem/>
    More text
</root>
END

for $doc.root.childNodes -> LibXML::Element $elem { .Str }

Observed in https://github.com/jnthn/spreadsheet-xlsx/issues/12.

[dwarring]

The underlying problem seems to be that Raku is calling the .raku method on the object, but this is hanging. This also failed to complete:

my LibXML::Document $doc .= parse: q:to<END>;
<root>
    Some text
    <anElem/>
    More text
</root>
END

for $doc.root.childNodes { .raku }

.raku is hanging on both LibXML::Element and LibXML::Text nodes.

[dwarring]

It's simply because raku is hanging when executed on the text node. Other nodes (e.g. elements) seem to also have this issue.

I've alias the LibXML::Node:D raku method to .Str.raku., as a work-around Further investigation needed.

[dwarring]

workaround installed with LibXML 0.9.10. .raku() method added that returns .Str.raku for LibXML::Node:D objects.

[vrurg]

Yes! This is bugging for more than a year now! And I never had time to report it.

On occassion, .raku may also die with SEGV. I managed to pinpoint it to nqp::getattr over a native attribute and even remember nine making a guess that it is somehow related to either incorrect size of it or something like that.

[dwarring]

Thanks,. I see now this is related to other open tickets both here and Rakudo which I have updated. Now that the issue is being worked around.

[jubilatious1]

I guess this is as good a place as any to report:

https://stackoverflow.com/q/75860114/7270649 https://stackoverflow.com/a/75872515/7270649

[dwarring]

The OP took that example from the LibXML::Reader doco. But that doesn't actually work when the file can't be opened.

Changed the handling so that LibXML::Reader throws an exception immediately that the file can't be opened and fails to return an error. The 'or die...' syntax is now avoided. It's not used anywhere else in the Raku LibXML bindings, anyway.

Released with LibXML v0.10.1

[jubilatious1]

Okay, I'm seeing upgrade errors. Probably because I --force-test to install previously:

admin@mbp zef % /Users/admin/rakudo/Rakudo-2022.07/install/share/perl6/site/bin/zef upgrade LibXML --verbose   
===> Searching for: LibXML
===> Updating fez mirror: https://360.zef.pm/
===> Updated fez mirror: https://360.zef.pm/
===> Found: LibXML:ver<0.10.1>:auth<zef:dwarring>:api<0.10.0> [via Zef::Repository::Ecosystems<fez>]
The following distributions will be upgraded: LibXML:ver<0.10.1>:auth<zef:dwarring>:api<0.10.0>
===> Updating: LibXML:ver<0.10.1>:auth<zef:dwarring>:api<0.10.0>
===> Fetching [OK]: https://360.zef.pm/L/IB/LIBXML/20876a1829ff8d518481a699a4ac1f9eabee2e2d.tar.gz to /var/folders/yt/l8245119545_9b4bhx09qssc0000gn/T//.zef/1680121206.8000.355.27622864561016/20876a1829ff8d518481a699a4ac1f9eabee2e2d.tar.gz
===> Extraction [OK]: https://360.zef.pm/L/IB/LIBXML/20876a1829ff8d518481a699a4ac1f9eabee2e2d.tar.gz to /var/folders/yt/l8245119545_9b4bhx09qssc0000gn/T//.zef/20876a1829ff8d518481a699a4ac1f9eabee2e2d.tar.gz
===> Building: LibXML:ver<0.10.1>:auth<zef:dwarring>:api<0.10.0>
[LibXML] Command: /Users/admin/rakudo/rakudo-2022.07/install/bin/rakudo -e require '/var/folders/yt/l8245119545_9b4bhx09qssc0000gn/T/.zef/20876a1829ff8d518481a699a4ac1f9eabee2e2d.tar.gz/LibXML-0.10.1/Build.pm6'; ::('Build').new.build('/var/folders/yt/l8245119545_9b4bhx09qssc0000gn/T/.zef/20876a1829ff8d518481a699a4ac1f9eabee2e2d.tar.gz/LibXML-0.10.1') ?? exit(0) !! exit(1);
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/dom.o src/dom.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/domXPath.o src/domXPath.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_parser_ctx.o src/xml6_parser_ctx.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_config.o src/xml6_config.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_doc.o src/xml6_doc.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_entity.o src/xml6_entity.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_gbl.o src/xml6_gbl.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_hash.o src/xml6_hash.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_input.o src/xml6_input.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_node.o src/xml6_node.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_notation.o src/xml6_notation.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_ns.o src/xml6_ns.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_sax.o src/xml6_sax.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_ref.o src/xml6_ref.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_reader.o src/xml6_reader.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_xpath.o src/xml6_xpath.c -I/opt/local/include/libxml2 
[LibXML] clang -I src -c  -fno-omit-frame-pointer -fno-optimize-sibling-calls -Werror=vla -O3  -Wno-logical-op-parentheses -D_DARWIN_USE_64_BIT_INODE=1  -DMVM_HEAPSNAPSHOT_FORMAT=2 -D_GNU_SOURCE -o src/xml6_error.o src/xml6_error.c -I/opt/local/include/libxml2 
[LibXML] clang -dynamiclib  -O3  -Wl,-rpath,"//Users/admin/rakudo/rakudo-2022.07/install/lib" -o resources/libraries/libxml6.dylib \
[LibXML]         src/dom.o  src/domXPath.o src/xml6_parser_ctx.o src/xml6_config.o src/xml6_doc.o src/xml6_entity.o src/xml6_gbl.o src/xml6_hash.o src/xml6_input.o src/xml6_node.o  src/xml6_notation.o src/xml6_ns.o src/xml6_sax.o src/xml6_ref.o  src/xml6_reader.o src/xml6_xpath.o  src/xml6_error.o \
[LibXML]         -L/opt/local/lib -lxml2 -L/opt/local/lib -lz -L/opt/local/lib -llzma -lpthread -liconv -L/opt/local/lib -licui18n -licuuc -licudata 
[LibXML] make: Nothing to be done for `all'.
===> Building [OK] for LibXML:ver<0.10.1>:auth<zef:dwarring>:api<0.10.0>
===> Testing: LibXML:ver<0.10.1>:auth<zef:dwarring>:api<0.10.0>
[LibXML] t/000sanity.t ................... ok
[LibXML] t/00ast.t ....................... ok
[LibXML] t/00config.t .................... ok
[LibXML] t/00dict.t ...................... ok
[LibXML] t/00dom-w3c.t ................... ok
[LibXML] t/00dom.t ....................... ok
[LibXML] t/00dtd-decls.t ................. ok
[LibXML] t/00dtd.t ....................... ok
[LibXML] t/00errors.t .................... ok
[LibXML] t/00hash-object.t ............... ok
[LibXML] t/00hash-type.t ................. ok
[LibXML] t/00input-callback.t ............ ok
[LibXML] t/00native.t .................... ok
[LibXML] t/00query-selectors.t ........... ok
[LibXML] t/00sax-coverage.t .............. ok
[LibXML] t/00sax.t ....................... ok
[LibXML] t/00subclass.t .................. ok
[LibXML] t/00threads.t ................... ok
[LibXML] t/00with-cache.t ................ ok
[LibXML] t/00xpath-object.t .............. ok
[LibXML] t/01basic.t ..................... ok
[LibXML] t/02parse.t ..................... All 20 subtests passed 
[LibXML] t/03doc.t ....................... All 9 subtests passed 
[LibXML] t/04node.t ...................... Dubious, test returned 1
[LibXML] Failed 1/11 subtests 
[LibXML] t/05text.t ...................... ok
[LibXML] t/06elements.t .................. ok
[LibXML] t/07dtd.t ....................... ok
[LibXML] t/08findnodes.t ................. Dubious, test returned 1
[LibXML] Failed 1/14 subtests 
[LibXML] t/09xpath.t ..................... All 10 subtests passed 
[LibXML] t/10ns.t ........................ ok
[LibXML] t/12html.t ...................... All 10 subtests passed 
[LibXML] t/13dtd.t ....................... ok
[LibXML] t/14sax.t ....................... All 34 subtests passed 
[LibXML] t/15nodelist.t .................. ok
[LibXML] t/16docnodes.t .................. ok
[LibXML] t/17callbacks.t ................. ok
[LibXML] t/18docfree.t ................... ok
[LibXML] t/19encoding.t .................. ok
[LibXML] t/20extras.t .................... ok
[LibXML] t/21catalog.t ................... ok
[LibXML] t/23rawfunctions.t .............. ok
[LibXML] t/24c14n.t ...................... All 12 subtests passed 
[LibXML] t/25relaxng.t ................... All 5 subtests passed 
[LibXML] t/26schema.t .................... Dubious, test returned 1
[LibXML] Failed 1/5 subtests 
[LibXML] t/27input_callbacks_simple.t .... ok
[LibXML] t/28input_callbacks_multiple.t .. ok
[LibXML] t/29id.t ........................ ok
[LibXML] t/30keep_blanks.t ............... Dubious, test returned 1
[LibXML] Failed 1/2 subtests 
[LibXML] t/30xpathcontext.t .............. Dubious, test returned 2
[LibXML] Failed 2/24 subtests 
[LibXML] t/31xpc_functions.t ............. ok
[LibXML] t/32xpc_variables.t ............. ok
[LibXML] t/35huge_mode.t ................. ok
[LibXML] t/40reader.t .................... ok
[LibXML] t/40reader_mem_error.t .......... ok
[LibXML] t/41xinclude.t .................. ok
[LibXML] t/42common.t .................... ok
[LibXML] t/43options.t ................... ok
[LibXML] t/44extent.t .................... Dubious, test returned 2
[LibXML] Failed 2/7 subtests 
[LibXML] t/45regex.t ..................... ok
[LibXML] t/46err_column.t ................ ok
[LibXML] t/47load_xml_callbacks.t ........ ok
[LibXML] t/48importing_nodes_IDs.t ....... ok
[LibXML] t/49global_extent.t ............. Dubious, test returned 1
[LibXML] Failed 1/1 subtests 
[LibXML] t/60error_prev_chain.t .......... ok
[LibXML] t/61error.t ..................... ok
[LibXML] t/90threads.t ................... All 26 subtests passed 
[LibXML] t/91unique_key.t ................ ok
[LibXML] t/99doc-examples.t .............. ok
[LibXML] t/issue#025.t ................... ok
[LibXML] t/issue#095.t ................... ok
[LibXML] 
[LibXML] Test Summary Report
[LibXML] -------------------
[LibXML] t/02parse.t  (Wstat: 10 Tests: 0 Failed: 0)
[LibXML] Non-zero wait status: 10
[LibXML]   Parse errors: Bad plan.  You planned 20 tests but ran 0.
[LibXML] t/03doc.t  (Wstat: 11 Tests: 6 Failed: 0)
[LibXML] Non-zero wait status: 11
[LibXML]   Parse errors: Bad plan.  You planned 9 tests but ran 6.
[LibXML] t/04node.t  (Wstat: 256 Tests: 11 Failed: 1)
[LibXML]   Failed tests:  11
[LibXML] Non-zero exit status: 1
[LibXML] t/08findnodes.t  (Wstat: 256 Tests: 14 Failed: 1)
[LibXML]   Failed tests:  6
[LibXML] Non-zero exit status: 1
[LibXML] t/09xpath.t  (Wstat: 11 Tests: 5 Failed: 0)
[LibXML] Non-zero wait status: 11
[LibXML]   Parse errors: Bad plan.  You planned 10 tests but ran 5.
[LibXML] t/12html.t  (Wstat: 10 Tests: 5 Failed: 0)
[LibXML] Non-zero wait status: 10
[LibXML]   Parse errors: Bad plan.  You planned 10 tests but ran 5.
[LibXML] t/14sax.t  (Wstat: 11 Tests: 0 Failed: 0)
[LibXML] Non-zero wait status: 11
[LibXML]   Parse errors: Bad plan.  You planned 34 tests but ran 0.
[LibXML] t/24c14n.t  (Wstat: 10 Tests: 7 Failed: 0)
[LibXML] Non-zero wait status: 10
[LibXML]   Parse errors: Bad plan.  You planned 12 tests but ran 7.
[LibXML] t/25relaxng.t  (Wstat: 10 Tests: 2 Failed: 0)
[LibXML] Non-zero wait status: 10
[LibXML]   Parse errors: Bad plan.  You planned 5 tests but ran 2.
[LibXML] t/26schema.t  (Wstat: 256 Tests: 5 Failed: 1)
[LibXML]   Failed tests:  5
[LibXML] Non-zero exit status: 1
[LibXML] t/30keep_blanks.t  (Wstat: 256 Tests: 2 Failed: 1)
[LibXML]   Failed tests:  2
[LibXML] Non-zero exit status: 1
[LibXML] t/30xpathcontext.t  (Wstat: 512 Tests: 24 Failed: 2)
[LibXML]   Failed tests:  6 7
[LibXML] Non-zero exit status: 2
[LibXML] t/44extent.t  (Wstat: 512 Tests: 7 Failed: 2)
[LibXML]   Failed tests:  1 2
[LibXML] Non-zero exit status: 2
[LibXML] t/49global_extent.t  (Wstat: 256 Tests: 1 Failed: 1)
[LibXML]   Failed tests:  1
[LibXML] Non-zero exit status: 1
[LibXML] t/90threads.t  (Wstat: 10 Tests: 17 Failed: 0)
[LibXML] Non-zero wait status: 10
[LibXML]   Parse errors: Bad plan.  You planned 26 tests but ran 17.
[LibXML] Files=70, Tests=661,  113 wallclock secs
[LibXML] Result: FAILED
===> Testing [FAIL]: LibXML:ver<0.10.1>:auth<zef:dwarring>:api<0.10.0>
Aborting due to test failure: LibXML:ver<0.10.1>:auth<zef:dwarring>:api<0.10.0> (use --force-test to override)
!!!> Failed upgrading *all* modules
admin@mbp zef % 

[dwarring]

@jubilatious1 is that #88 re MacOS El Capitan?

I had a look, but so far haven't found a suitable AWS instance, or anything useful from googling for Virtual Box VMs.

[jubilatious1]

Hi @dwarring different box, different (newer) MacOS.

Should I move the first comment to a new Issue?

https://github.com/libxml-raku/LibXML-raku/issues/95#issuecomment-1487879759

Thx.

[dwarring]

Hi @jubilatious1. Yes please, create a new issue.