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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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3
Userland/Libraries/LibJS/Runtime/ExecutionContext.h
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@ -10,6 +10,7 @@
#include <AK/DeprecatedFlyString.h>
#include <AK/WeakPtr.h>
#include <LibJS/Bytecode/Instruction.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/MarkedVector.h>
#include <LibJS/Module.h>
@ -43,7 +44,7 @@ public:
// Non-standard: This points at something that owns this ExecutionContext, in case it needs to be protected from GC.
GCPtr<Cell> context_owner;
UnrealizedSourceRange source_range;
Optional<Bytecode::InstructionStreamIterator&> instruction_stream_iterator;
DeprecatedFlyString function_name;
Value this_value;
MarkedVector<Value> arguments;