diff --git a/Userland/Libraries/LibJS/Runtime/VM.cpp b/Userland/Libraries/LibJS/Runtime/VM.cpp index 2efebbe12d..17bc99b593 100644 --- a/Userland/Libraries/LibJS/Runtime/VM.cpp +++ b/Userland/Libraries/LibJS/Runtime/VM.cpp @@ -622,4 +622,17 @@ void VM::dump_backtrace() const dbgln("-> {}", m_call_stack[i]->function_name); } +void VM::dump_scope_chain() const +{ + for (auto* scope = current_scope(); scope; scope = scope->parent()) { + dbgln("+> {} ({:p})", scope->class_name(), scope); + if (is(*scope)) { + auto& lexical_environment = static_cast(*scope); + for (auto& variable : lexical_environment.variables()) { + dbgln(" {}", variable.key); + } + } + } +} + } diff --git a/Userland/Libraries/LibJS/Runtime/VM.h b/Userland/Libraries/LibJS/Runtime/VM.h index 8f70ffb614..ef2510cf21 100644 --- a/Userland/Libraries/LibJS/Runtime/VM.h +++ b/Userland/Libraries/LibJS/Runtime/VM.h @@ -72,6 +72,7 @@ public: void clear_exception() { m_exception = nullptr; } void dump_backtrace() const; + void dump_scope_chain() const; class InterpreterExecutionScope { public: