LibJS: Improve function hoisting across blocks

The parser now keeps track of a scope chain so that it can hoist function declarations to the closest function scope.
Author: https://github.com/Hendi48 Commit: 38fd980b0c Pull-request: https://github.com/SerenityOS/serenity/pull/8439 Issue: https://github.com/SerenityOS/serenity/issues/8299 Reviewed-by: https://github.com/linusg ✅
2025-07-28 19:59:17 +00:00 · 2021-07-04 03:15:52 +02:00 · 2021-07-04 03:15:52 +02:00 · 38fd980b0c · 2024-07-18 10:20:15 +09:00
commit 38fd980b0c
parent 72f8d90dc5
6 changed files with 79 additions and 22 deletions
--- a/Userland/Libraries/LibJS/AST.cpp
+++ b/Userland/Libraries/LibJS/AST.cpp
@ -2377,4 +2377,9 @@ void ScopeNode::add_functions(NonnullRefPtrVector<FunctionDeclaration> functions
    m_functions.extend(move(functions));
 }

+void ScopeNode::add_hoisted_functions(NonnullRefPtrVector<FunctionDeclaration> hoisted_functions)
+{
+    m_hoisted_functions.extend(move(hoisted_functions));
+}
+
 }