From 79833246397359cceb83350dff8848d159c9eb29 Mon Sep 17 00:00:00 2001
From: Matthew Olsson <matthewcolsson@gmail.com>
Date: Sun, 13 Jun 2021 13:40:48 -0700
Subject: LibJS: Implement array destructuring for the bytecode interpreter

---
 Userland/Libraries/LibJS/Bytecode/Op.cpp | 44 ++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

(limited to 'Userland/Libraries/LibJS/Bytecode/Op.cpp')

diff --git a/Userland/Libraries/LibJS/Bytecode/Op.cpp b/Userland/Libraries/LibJS/Bytecode/Op.cpp
index 607878882a..32a70f534c 100644
--- a/Userland/Libraries/LibJS/Bytecode/Op.cpp
+++ b/Userland/Libraries/LibJS/Bytecode/Op.cpp
@@ -12,6 +12,7 @@
 #include <LibJS/Runtime/Array.h>
 #include <LibJS/Runtime/BigInt.h>
 #include <LibJS/Runtime/GlobalObject.h>
+#include <LibJS/Runtime/IteratorOperations.h>
 #include <LibJS/Runtime/LexicalEnvironment.h>
 #include <LibJS/Runtime/ScopeObject.h>
 #include <LibJS/Runtime/ScriptFunction.h>
@@ -358,6 +359,29 @@ void LoadArgument::execute_impl(Bytecode::Interpreter& interpreter) const
     interpreter.accumulator() = interpreter.vm().argument(m_index);
 }
 
+void GetIterator::execute_impl(Bytecode::Interpreter& interpreter) const
+{
+    interpreter.accumulator() = get_iterator(interpreter.global_object(), interpreter.accumulator());
+}
+
+void IteratorNext::execute_impl(Bytecode::Interpreter& interpreter) const
+{
+    if (auto* object = interpreter.accumulator().to_object(interpreter.global_object()))
+        interpreter.accumulator() = iterator_next(*object);
+}
+
+void IteratorResultDone::execute_impl(Bytecode::Interpreter& interpreter) const
+{
+    if (auto* iterator_result = interpreter.accumulator().to_object(interpreter.global_object()))
+        interpreter.accumulator() = Value(iterator_complete(interpreter.global_object(), *iterator_result));
+}
+
+void IteratorResultValue::execute_impl(Bytecode::Interpreter& interpreter) const
+{
+    if (auto* iterator_result = interpreter.accumulator().to_object(interpreter.global_object()))
+        interpreter.accumulator() = iterator_value(interpreter.global_object(), *iterator_result);
+}
+
 String Load::to_string_impl(Bytecode::Executable const&) const
 {
     return String::formatted("Load {}", m_src);
@@ -552,4 +576,24 @@ String LoadArgument::to_string_impl(const Bytecode::Executable&) const
     return String::formatted("LoadArgument {}", m_index);
 }
 
+String GetIterator::to_string_impl(Executable const&) const
+{
+    return "GetIterator";
+}
+
+String IteratorNext::to_string_impl(Executable const&) const
+{
+    return "IteratorNext";
+}
+
+String IteratorResultDone::to_string_impl(Executable const&) const
+{
+    return "IteratorResultDone";
+}
+
+String IteratorResultValue::to_string_impl(Executable const&) const
+{
+    return "IteratorResultValue";
+}
+
 }
-- 
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