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LibJS: Store basic traceback in Exception

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Nothing fancy like line numbers, but Exception now stores a list of
function names up to the current call frame.
This commit is contained in:
Linus Groh 2020-06-02 14:11:59 +01:00 • committed by Andreas Kling
parent a48080f62d
commit 4f6912c605
Notes: sideshowbarker 2024-07-19 05:53:15 +09:00
2 changed files with 10 additions and 0 deletions
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8
Libraries/LibJS/Runtime/Exception.cpp
View file

@ -24,6 +24,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Exception.h>
namespace JS {
@ -31,6 +32,13 @@ namespace JS {
Exception::Exception(Value value)
: m_value(value)
{
auto call_stack = interpreter().call_stack();
for (ssize_t i = call_stack.size() - 1; i >= 0; --i) {
auto function_name = call_stack[i].function_name;
if (function_name.is_empty())
function_name = "<anonymous>";
m_trace.append(function_name);
}
}
Exception::~Exception()

2
Libraries/LibJS/Runtime/Exception.h
View file

@ -37,12 +37,14 @@ public:
virtual ~Exception() override;
Value value() const { return m_value; }
const Vector<String>& trace() const { return m_trace; }
private:
virtual const char* class_name() const override { return "Exception"; }
virtual void visit_children(Visitor&) override;
Value m_value;
Vector<String> m_trace;
};
}