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