Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89 Commit: 93712b24bf Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256 Reviewed-by: https://github.com/sideshowbarker
2025-07-29 12:19:54 +00:00 · 2024-11-09 12:25:08 -05:00 · 2024-11-09 12:25:08 -05:00 · 93712b24bf · 2024-11-10 11:51:52 +00:00
commit 93712b24bf
parent 950e819ee7
4547 changed files with 104 additions and 113 deletions
--- a/Libraries/LibJS/Runtime/MapConstructor.cpp
+++ b/Libraries/LibJS/Runtime/MapConstructor.cpp
@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
+ * Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibJS/Runtime/AbstractOperations.h>
+#include <LibJS/Runtime/Array.h>
+#include <LibJS/Runtime/Error.h>
+#include <LibJS/Runtime/Iterator.h>
+#include <LibJS/Runtime/Map.h>
+#include <LibJS/Runtime/MapConstructor.h>
+
+namespace JS {
+
+JS_DEFINE_ALLOCATOR(MapConstructor);
+
+MapConstructor::MapConstructor(Realm& realm)
+    : NativeFunction(realm.vm().names.Map.as_string(), realm.intrinsics().function_prototype())
+{
+}
+
+void MapConstructor::initialize(Realm& realm)
+{
+    auto& vm = this->vm();
+    Base::initialize(realm);
+
+    // 24.1.2.2 Map.prototype, https://tc39.es/ecma262/#sec-map.prototype
+    define_direct_property(vm.names.prototype, realm.intrinsics().map_prototype(), 0);
+
+    u8 attr = Attribute::Writable | Attribute::Configurable;
+    define_native_function(realm, vm.names.groupBy, group_by, 2, attr);
+
+    define_native_accessor(realm, vm.well_known_symbol_species(), symbol_species_getter, {}, Attribute::Configurable);
+
+    define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
+}
+
+// 24.1.1.1 Map ( [ iterable ] ), https://tc39.es/ecma262/#sec-map-iterable
+ThrowCompletionOr<Value> MapConstructor::call()
+{
+    auto& vm = this->vm();
+    return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.Map);
+}
+
+// 24.1.1.1 Map ( [ iterable ] ), https://tc39.es/ecma262/#sec-map-iterable
+ThrowCompletionOr<NonnullGCPtr<Object>> MapConstructor::construct(FunctionObject& new_target)
+{
+    auto& vm = this->vm();
+
+    auto map = TRY(ordinary_create_from_constructor<Map>(vm, new_target, &Intrinsics::map_prototype));
+
+    if (vm.argument(0).is_nullish())
+        return map;
+
+    auto adder = TRY(map->get(vm.names.set));
+    if (!adder.is_function())
+        return vm.throw_completion<TypeError>(ErrorType::NotAFunction, "'set' property of Map");
+
+    (void)TRY(get_iterator_values(vm, vm.argument(0), [&](Value iterator_value) -> Optional<Completion> {
+        if (!iterator_value.is_object())
+            return vm.throw_completion<TypeError>(ErrorType::NotAnObject, ByteString::formatted("Iterator value {}", iterator_value.to_string_without_side_effects()));
+
+        auto key = TRY(iterator_value.as_object().get(0));
+        auto value = TRY(iterator_value.as_object().get(1));
+        TRY(JS::call(vm, adder.as_function(), map, key, value));
+
+        return {};
+    }));
+
+    return map;
+}
+
+// 24.1.2.1 Map.groupBy ( items, callbackfn ), https://tc39.es/ecma262/#sec-map.groupby
+JS_DEFINE_NATIVE_FUNCTION(MapConstructor::group_by)
+{
+    auto& realm = *vm.current_realm();
+
+    auto items = vm.argument(0);
+    auto callback_function = vm.argument(1);
+
+    struct KeyedGroupTraits : public Traits<Handle<Value>> {
+        static unsigned hash(Handle<Value> const& value_handle)
+        {
+            return ValueTraits::hash(value_handle.value());
+        }
+
+        static bool equals(Handle<Value> const& a, Handle<Value> const& b)
+        {
+            // AddValueToKeyedGroup uses SameValue on the keys on Step 1.a.
+            return same_value(a.value(), b.value());
+        }
+    };
+
+    // 1. Let groups be ? GroupBy(items, callbackfn, zero).
+    auto groups = TRY((JS::group_by<OrderedHashMap<Handle<Value>, MarkedVector<Value>, KeyedGroupTraits>, void>(vm, items, callback_function)));
+
+    // 2. Let map be ! Construct(%Map%).
+    auto map = Map::create(realm);
+
+    // 3. For each Record { [[Key]], [[Elements]] } g of groups, do
+    for (auto& group : groups) {
+        // a. Let elements be CreateArrayFromList(g.[[Elements]]).
+        auto elements = Array::create_from(realm, group.value);
+
+        // b. Let entry be the Record { [[Key]]: g.[[Key]], [[Value]]: elements }.
+        // c. Append entry to map.[[MapData]].
+        map->map_set(group.key.value(), elements);
+    }
+
+    // 4. Return map.
+    return map;
+}
+
+// 24.1.2.3 get Map [ @@species ], https://tc39.es/ecma262/#sec-get-map-@@species
+JS_DEFINE_NATIVE_FUNCTION(MapConstructor::symbol_species_getter)
+{
+    return vm.this_value();
+}
+
+}