Assertion `blk' failed in Escargot::FunctionExpressionNode::generateExpressionByteCode

[renatahodovan]

Escargot version:

Checked revision: 8bcf72a
Build command: cmake -DESCARGOT_HOST=linux -DESCARGOT_ARCH=x64 -DESCARGOT_MODE=debug -DESCARGOT_OUTPUT=bin -GNinja && ninja

OS:

Ubuntu 18.04, x86_64

Test case:

for ( var id_0 = { toString : function ( ) {} } in Array.toString ) { } 

Backtrace:

escargot: escargot/src/parser/ast/FunctionExpressionNode.h:58: virtual void Escargot::FunctionExpressionNode::generateExpressionByteCode(Escargot::ByteCodeBlock*, Escargot::ByteCodeGenerateContext*, ByteCodeRegisterIndex): Assertion `blk' failed.
b
Program received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
51	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007ffff688d801 in __GI_abort () at abort.c:79
#2  0x00007ffff687d39a in __assert_fail_base (fmt=0x7ffff6a047d8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x55555581d77a "blk", 
    file=file@entry=0x55555581d9b8 "escargot/src/parser/ast/FunctionExpressionNode.h", line=line@entry=58, 
    function=function@entry=0x555555820320 <Escargot::FunctionExpressionNode::generateExpressionByteCode(Escargot::ByteCodeBlock*, Escargot::ByteCodeGenerateContext*, unsigned short)::__PRETTY_FUNCTION__> "virtual void Escargot::FunctionExpressionNode::generateExpressionByteCode(Escargot::ByteCodeBlock*, Escargot::ByteCodeGenerateContext*, ByteCodeRegisterIndex)") at assert.c:92
#3  0x00007ffff687d412 in __GI___assert_fail (assertion=0x55555581d77a "blk", file=0x55555581d9b8 "escargot/src/parser/ast/FunctionExpressionNode.h", line=58, 
    function=0x555555820320 <Escargot::FunctionExpressionNode::generateExpressionByteCode(Escargot::ByteCodeBlock*, Escargot::ByteCodeGenerateContext*, unsigned short)::__PRETTY_FUNCTION__> "virtual void Escargot::FunctionExpressionNode::generateExpressionByteCode(Escargot::ByteCodeBlock*, Escargot::ByteCodeGenerateContext*, ByteCodeRegisterIndex)") at assert.c:101
#4  0x000055555562fa6c in Escargot::FunctionExpressionNode::generateExpressionByteCode (this=0x7ffff482df70, codeBlock=0x7ffff7e68610, context=0x7fffffffd200, dstIndex=3)
    at escargot/src/parser/ast/FunctionExpressionNode.h:58
#5  0x00005555556317db in Escargot::ObjectExpressionNode::generateExpressionByteCode (this=0x7ffff482ff10, codeBlock=0x7ffff7e68610, context=0x7fffffffd200, dstRegister=2)
    at escargot/src/parser/ast/ObjectExpressionNode.h:70
#6  0x00005555556387ff in Escargot::VariableDeclarationNode::generateStoreByteCode (this=0x7ffff482fe40, codeBlock=0x7ffff7e68610, context=0x7fffffffd200, src=2, needToReferenceSelf=true)
    at escargot/src/parser/ast/VariableDeclarationNode.h:56
#7  0x000055555562ebd0 in Escargot::ForInStatementNode::generateStatementByteCode (this=0x7ffff4830f70, codeBlock=0x7ffff7e68610, context=0x7fffffffd7c0)
    at escargot/src/parser/ast/ForInStatementNode.h:89
#8  0x000055555561f06c in Escargot::StatementContainer::generateStatementByteCode (this=0x555555bac510, codeBlock=0x7ffff7e68610, context=0x7fffffffd7c0)
    at escargot/src/parser/ast/StatementNode.h:75
#9  0x0000555555631db9 in Escargot::ProgramNode::generateStatementByteCode (this=0x7ffff482ee30, codeBlock=0x7ffff7e68610, context=0x7fffffffd7c0)
    at escargot/src/parser/ast/ProgramNode.h:48
#10 0x00005555555e1789 in Escargot::ByteCodeGenerator::generateByteCode (this=0x7fffffffda17, c=0x7ffff7e59ed0, codeBlock=0x7ffff4831ed0, ast=0x7ffff482ee30, scopeCtx=0x7ffff7e68850, isEvalMode=false, 
    isOnGlobal=true, shouldGenerateLOCData=false) at src/interpreter/ByteCodeGenerator.cpp:188
#11 0x0000555555611635 in Escargot::Script::execute (this=0x7ffff4824190, state=..., isEvalMode=false, needNewEnv=false, isOnGlobal=true) at src/parser/Script.cpp:46
#12 0x0000555555611b73 in Escargot::Script::<lambda()>::operator()(void) const (__closure=0x7fffffffdd30) at src/parser/Script.cpp:93
#13 0x0000555555612c16 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
#14 0x00005555557a4106 in std::function<Escargot::Value ()>::operator()() const (this=0x7fffffffdd30) at /usr/include/c++/7/bits/std_function.h:706
#15 0x00005555557a2c4b in Escargot::SandBox::run(std::function<Escargot::Value ()> const&) (this=0x7fffffffdca0, scriptRunner=...) at src/runtime/SandBox.cpp:36
#16 0x0000555555611c50 in Escargot::Script::sandboxExecute (this=0x7ffff4824190, state=...) at src/parser/Script.cpp:94
#17 0x00005555557c102b in eval (context=0x7ffff7e59ed0, str=0x7ffff4829750, fileName=0x7ffff48296b0, shouldPrintScriptResult=false) at src/shell/Shell.cpp:46
#18 0x00005555557c197a in main (argc=2, argv=0x7fffffffe058) at src/shell/Shell.cpp:129

^{Found by Fuzzinator with grammarinator.}