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

Libraries/LibWeb/HTML/Scripting/ImportMapParseResult.cpp

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibJS/Runtime/ModuleRequest.h>
+#include <LibWeb/Bindings/ExceptionOrUtils.h>
+#include <LibWeb/HTML/Scripting/ExceptionReporter.h>
+#include <LibWeb/HTML/Scripting/ImportMapParseResult.h>
+#include <LibWeb/HTML/Window.h>
+#include <LibWeb/WebIDL/DOMException.h>
+
+namespace Web::HTML {
+
+JS_DEFINE_ALLOCATOR(ImportMapParseResult);
+
+ImportMapParseResult::ImportMapParseResult() = default;
+
+ImportMapParseResult::~ImportMapParseResult() = default;
+
+// https://html.spec.whatwg.org/multipage/webappapis.html#create-an-import-map-parse-result
+JS::NonnullGCPtr<ImportMapParseResult> ImportMapParseResult::create(JS::Realm& realm, ByteString const& input, URL::URL base_url)
+{
+    // 1. Let result be an import map parse result whose import map is null and whose error to rethrow is null.
+    auto result = realm.heap().allocate<ImportMapParseResult>(realm);
+
+    // 2. Parse an import map string given input and baseURL, catching any exceptions.
+    auto import_map = parse_import_map_string(realm, input, base_url);
+
+    // 2.1. If this threw an exception, then set result's error to rethrow to that exception.
+    if (import_map.is_exception())
+        result->set_error_to_rethrow(import_map.exception());
+
+    // 2.2. Otherwise, set result's import map to the return value.
+    else
+        result->set_import_map(import_map.release_value());
+
+    // 3. Return result.
+    return result;
+}
+
+void ImportMapParseResult::visit_host_defined_self(Visitor& visitor)
+{
+    visitor.visit(*this);
+}
+
+void ImportMapParseResult::visit_edges(Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    if (m_error_to_rethrow.has_value()) {
+        m_error_to_rethrow.value().visit(
+            [&](WebIDL::SimpleException const&) {
+                // ignore
+            },
+            [&](JS::NonnullGCPtr<WebIDL::DOMException> exception) {
+                visitor.visit(exception);
+            },
+            [&](JS::Completion const& completion) {
+                if (completion.value().has_value())
+                    visitor.visit(completion.value().value());
+            });
+    }
+}
+
+// https://html.spec.whatwg.org/multipage/webappapis.html#register-an-import-map
+void ImportMapParseResult::register_import_map(Window& global)
+{
+    // 1. If result's error to rethrow is not null, then report the exception given by result's error to rethrow and return.
+    if (m_error_to_rethrow.has_value()) {
+        auto completion = Web::Bindings::dom_exception_to_throw_completion(global.vm(), m_error_to_rethrow.value());
+        HTML::report_exception(completion, global.realm());
+        return;
+    }
+
+    // 2. Assert: global's import map is an empty import map.
+    VERIFY(global.import_map().imports().is_empty() && global.import_map().scopes().is_empty());
+
+    // 3. Set global's import map to result's import map.
+    VERIFY(m_import_map.has_value());
+    global.set_import_map(m_import_map.value());
+}
+
+}