Assertion `s <= e' failed in Escargot::StringView::StringView

[renatahodovan]

Escargot version:

Checked revision: 958b293

Build command: cmake -H. -Bout -DESCARGOT_HOST=linux -DESCARGOT_ARCH=x64 -DESCARGOT_MODE=debug -DESCARGOT_OUTPUT=bin -GNinja && ninja -C out

OS:

Linux-4.15.0-48-generic-x86_64-with-Ubuntu-18.04-bionic

Test case:

Intl.NumberFormat('en-u-foo-U-foo')

Backtrace:

escargot: ../src/runtime/StringView.h:33: Escargot::StringView::StringView(Escargot::String*, size_t, size_t): Assertion `s <= e' failed.

bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007ffff6466801 in __GI_abort () at abort.c:79
#2  0x00007ffff645639a in __assert_fail_base (fmt=0x7ffff65dd7d8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x55555582d7b3 "s <= e", file=file@entry=0x55555582d797 "../src/runtime/StringView.h", line=line@entry=33, function=function@entry=0x5555558302e0 <Escargot::StringView::StringView(Escargot::String*, unsigned long, unsigned long)::__PRETTY_FUNCTION__> "Escargot::StringView::StringView(Escargot::String*, size_t, size_t)") at assert.c:92
#3  0x00007ffff6456412 in __GI___assert_fail (assertion=0x55555582d7b3 "s <= e", file=0x55555582d797 "../src/runtime/StringView.h", line=33, function=0x5555558302e0 <Escargot::StringView::StringView(Escargot::String*, unsigned long, unsigned long)::__PRETTY_FUNCTION__> "Escargot::StringView::StringView(Escargot::String*, size_t, size_t)") at assert.c:101
#4  0x00005555555c67e6 in Escargot::StringView::StringView (this=0x7ffff461db70, str=0x7ffff45c67f0, s=8, e=6) at ../src/runtime/StringView.h:33
#5  0x00005555557c7acd in Escargot::String::substring (this=0x7ffff45c67f0, from=8, to=6) at ../src/runtime/String.cpp:728
#6  0x000055555570398f in Escargot::lookupMatcher (state=..., availableLocales=..., requestedLocales=...) at ../src/runtime/GlobalObjectBuiltinIntl.cpp:791
#7  0x0000555555703a31 in Escargot::bestFitMatcher (state=..., availableLocales=..., requestedLocales=...) at ../src/runtime/GlobalObjectBuiltinIntl.cpp:805
#8  0x0000555555703e7a in Escargot::resolveLocale (state=..., availableLocales=..., requestedLocales=..., options=0x7ffff46285b0, relevantExtensionKeys=0x555555b36dc0 <Escargot::intlNumberFormatRelevantExtensionKeys>, relevantExtensionKeyCount=1, localeData=0x55555570e48d <Escargot::localeDataNumberFormat(Escargot::String*, size_t)>) at ../src/runtime/GlobalObjectBuiltinIntl.cpp:827
#9  0x000055555570ec68 in Escargot::initializeNumberFormat (state=..., numberFormat=0x7ffff45fc610, locales=..., options=...) at ../src/runtime/GlobalObjectBuiltinIntl.cpp:2219
#10 0x00005555557117d8 in Escargot::builtinIntlNumberFormatConstructor (state=..., thisValue=..., argc=1, argv=0x7fffffffcbb0, isNewExpression=true) at ../src/runtime/GlobalObjectBuiltinIntl.cpp:2472
#11 0x00005555556cd6f2 in Escargot::FunctionObject::processCall (this=0x7ffff45fb490, state=..., receiverSrc=..., argc=1, argv=0x7fffffffcbb0, isNewExpression=true) at ../src/runtime/FunctionObject.cpp:357
#12 0x00005555556cd202 in Escargot::FunctionObject::newInstance (this=0x7ffff45fb490, state=..., argc=1, argv=0x7fffffffcbb0) at ../src/runtime/FunctionObject.cpp:300
#13 0x00005555555fc5d6 in Escargot::ByteCodeInterpreter::newOperation (state=..., callee=..., argc=1, argv=0x7fffffffcbb0) at ../src/interpreter/ByteCodeInterpreter.cpp:1382
#14 0x00005555555f9760 in Escargot::ByteCodeInterpreter::interpret (state=..., byteCodeBlock=0x7ffff7e6bbb0, programCounter=93824999017304, registerFile=0x7fffffffcb50, initAddressFiller=0x0) at ../src/interpreter/ByteCodeInterpreter.cpp:802
#15 0x00005555556000ae in Escargot::ByteCodeInterpreter::tryOperation (state=..., code=0x555555bcca60, ec=0x7ffff45fc930, env=0x7ffff461cb20, programCounter=93824999017056, byteCodeBlock=0x7ffff7e6bbb0, registerFile=0x7fffffffcb50) at ../src/interpreter/ByteCodeInterpreter.cpp:1983
#16 0x00005555555fa1c3 in Escargot::ByteCodeInterpreter::interpret (state=..., byteCodeBlock=0x7ffff7e6bbb0, programCounter=93824999017056, registerFile=0x7fffffffcb50, initAddressFiller=0x0) at ../src/interpreter/ByteCodeInterpreter.cpp:929
#17 0x00005555556ce948 in Escargot::FunctionObject::processCall (this=0x7ffff4631120, state=..., receiverSrc=..., argc=1, argv=0x7fffffffd5c0, isNewExpression=false) at ../src/runtime/FunctionObject.cpp:536
#18 0x00005555555f50dc in Escargot::FunctionObject::call (state=..., callee=..., receiver=..., argc=1, argv=0x7fffffffd5c0, isNewExpression=false) at ../src/runtime/FunctionObject.h:111
#19 0x00005555555f8209 in Escargot::ByteCodeInterpreter::interpret (state=..., byteCodeBlock=0x7ffff7e6bcd0, programCounter=93824999022304, registerFile=0x7fffffffd5b0, initAddressFiller=0x0) at ../src/interpreter/ByteCodeInterpreter.cpp:529
#20 0x0000555555625d97 in Escargot::Script::execute (this=0x7ffff462cb20, state=..., isEvalMode=false, needNewEnv=false, isOnGlobal=true) at ../src/parser/Script.cpp:79
#21 0x0000555555625ee9 in Escargot::Script::<lambda()>::operator()(void) const (__closure=0x7fffffffd980) at ../src/parser/Script.cpp:92
#22 0x0000555555626ef2 in std::_Function_handler<Escargot::Value(), Escargot::Script::sandboxExecute(Escargot::ExecutionState&)::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/7/bits/std_function.h:302
#23 0x00005555557bf72c in std::function<Escargot::Value ()>::operator()() const (this=0x7fffffffd980) at /usr/include/c++/7/bits/std_function.h:706
#24 0x00005555557be2df in Escargot::SandBox::run(std::function<Escargot::Value ()> const&) (this=0x7fffffffd8f0, scriptRunner=...) at ../src/runtime/SandBox.cpp:36
#25 0x0000555555625fc6 in Escargot::Script::sandboxExecute (this=0x7ffff462cb20, state=...) at ../src/parser/Script.cpp:93
#26 0x00005555557dbd0c in eval (context=0x7ffff7e5bed0, str=0x7ffff46297f0, fileName=0x7ffff46296b0, shouldPrintScriptResult=false) at ../src/shell/Shell.cpp:47
#27 0x00005555557dc631 in main (argc=2, argv=0x7fffffffdca8) at ../src/shell/Shell.cpp:128

^{Found by Fuzzinator.}

[renatahodovan]

Fixed by #238 .