1 files changed, 81 insertions, 0 deletions
diff --git a/Userland/Libraries/LibJS/Runtime/NativeFunction.cpp b/Userland/Libraries/LibJS/Runtime/NativeFunction.cpp
new file mode 100644
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+++ b/Userland/Libraries/LibJS/Runtime/NativeFunction.cpp
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+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <LibJS/Runtime/GlobalObject.h>
+#include <LibJS/Runtime/LexicalEnvironment.h>
+#include <LibJS/Runtime/NativeFunction.h>
+#include <LibJS/Runtime/Value.h>
+
+namespace JS {
+
+NativeFunction* NativeFunction::create(GlobalObject& global_object, const FlyString& name, AK::Function<Value(VM&, GlobalObject&)> function)
+{
+    return global_object.heap().allocate<NativeFunction>(global_object, name, move(function), *global_object.function_prototype());
+}
+
+NativeFunction::NativeFunction(Object& prototype)
+    : Function(prototype)
+{
+}
+
+NativeFunction::NativeFunction(const FlyString& name, AK::Function<Value(VM&, GlobalObject&)> native_function, Object& prototype)
+    : Function(prototype)
+    , m_name(name)
+    , m_native_function(move(native_function))
+{
+}
+
+NativeFunction::NativeFunction(const FlyString& name, Object& prototype)
+    : Function(prototype)
+    , m_name(name)
+{
+}
+
+NativeFunction::~NativeFunction()
+{
+}
+
+Value NativeFunction::call()
+{
+    return m_native_function(vm(), global_object());
+}
+
+Value NativeFunction::construct(Function&)
+{
+    return {};
+}
+
+LexicalEnvironment* NativeFunction::create_environment()
+{
+    return heap().allocate<LexicalEnvironment>(global_object(), LexicalEnvironment::EnvironmentRecordType::Function);
+}
+
+bool NativeFunction::is_strict_mode() const
+{
+    return vm().in_strict_mode();
+}
+
+}