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LibJS: Add file & line number to bytecode VM stack traces :^)

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This works by adding source start/end offset to every bytecode
instruction. In the future we can make this more efficient by keeping
a map of bytecode ranges to source ranges in the Executable instead,
but let's just get traces working first.

Co-Authored-By: Andrew Kaster <akaster@serenityos.org>
This commit is contained in:
Andreas Kling 2023-09-01 16:53:55 +02:00
parent 0b66656ca9
commit 1c06111cbd
16 changed files with 157 additions and 26 deletions
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5
Userland/Libraries/LibJS/Runtime/Error.cpp
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@ -83,9 +83,12 @@ void Error::populate_stack()
if (function_name.is_empty())
function_name = "<unknown>"sv;
UnrealizedSourceRange range = {};
if (context->instruction_stream_iterator.has_value())
range = context->instruction_stream_iterator->source_range();
TracebackFrame frame {
.function_name = move(function_name),
.source_range_storage = context->source_range,
.source_range_storage = range,
};
m_traceback.append(move(frame));