LibJS: Implement Proxy [[Call]] and [[Construct]] traps

In order to do this, Proxy now extends Function rather than Object, and whether or not it returns true for is_function() depends on it's m_target.
Author: https://github.com/mattco98 Commit: 98323e19e5 Pull-request: https://github.com/SerenityOS/serenity/pull/2630 Issue: https://github.com/SerenityOS/serenity/issues/2624 Reviewed-by: https://github.com/awesomekling
2025-08-07 08:39:22 +00:00 · 2020-06-25 14:49:56 -07:00 · 2020-06-25 14:49:56 -07:00 · 98323e19e5 · 2024-07-19 05:18:46 +09:00
commit 98323e19e5
parent ed683663cd
5 changed files with 98 additions and 6 deletions
--- a/Libraries/LibJS/Interpreter.h
+++ b/Libraries/LibJS/Interpreter.h
@ -136,6 +136,15 @@ public:

    bool in_strict_mode() const { return m_scope_stack.last().scope_node->in_strict_mode(); }

+    template<typename Callback>
+    void for_each_argument(Callback callback)
+    {
+        if (m_call_stack.is_empty())
+            return;
+        for (auto& value : m_call_stack.last().arguments)
+            callback(value);
+    }
+
    size_t argument_count() const
    {
        if (m_call_stack.is_empty())