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LibJS: Create lexical scope for "catch" on the spot when throwing

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This commit is contained in:
Andreas Kling
2020-12-08 18:12:39 +01:00
parent fc9e43728b
commit 38268f1c53
1 changed files with 6 additions and 2 deletions
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8
Libraries/LibJS/AST.cpp
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@@ -1901,8 +1901,12 @@ Value TryStatement::execute(Interpreter& interpreter, GlobalObject& global_objec
if (auto* exception = interpreter.exception()) {
if (m_handler) {
interpreter.vm().clear_exception();
ArgumentVector arguments { { m_handler->parameter(), exception->value() } };
interpreter.execute_statement(global_object, m_handler->body(), move(arguments));
HashMap<FlyString, Variable> parameters;
parameters.set(m_handler->parameter(), Variable { exception->value(), DeclarationKind::Var });
auto* catch_scope = interpreter.heap().allocate<LexicalEnvironment>(global_object, move(parameters), interpreter.vm().call_frame().scope);
TemporaryChange<ScopeObject*> scope_change(interpreter.vm().call_frame().scope, catch_scope);
interpreter.execute_statement(global_object, m_handler->body());
}
}