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LibJS: Lazily collect stack trace information

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The previous implementation was calling `backtrace()` for every
function call, which is quite slow.

Instead, this implementation provides VM::stack_trace() which unwinds
the native stack, maps it through NativeExecutable::get_source_range
and combines it with source ranges from interpreted call frames.
This commit is contained in:
Simon Wanner 2023-11-01 00:39:28 +01:00 • committed by Andreas Kling
parent 77dc7c4d36
commit 68f4d21de2
11 changed files with 96 additions and 46 deletions
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2
Userland/Libraries/LibJS/Bytecode/Interpreter.h
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@ -78,7 +78,7 @@ public:
Executable& current_executable() { return *m_current_executable; }
Executable const& current_executable() const { return *m_current_executable; }
BasicBlock const& current_block() const { return *m_current_block; }
Optional<InstructionStreamIterator const&> instruction_stream_iterator() const;
Optional<InstructionStreamIterator const&> instruction_stream_iterator() const { return m_pc; }
void visit_edges(Cell::Visitor&);