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/*
* Copyright (c) 2021-2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Debug.h>
#include <LibCore/ElapsedTimer.h>
#include <LibJS/Interpreter.h>
#include <LibWeb/HTML/Scripting/ClassicScript.h>
#include <LibWeb/HTML/Scripting/ExceptionReporter.h>
namespace Web::HTML {
// https://html.spec.whatwg.org/multipage/webappapis.html#creating-a-classic-script
NonnullRefPtr<ClassicScript> ClassicScript::create(String filename, StringView source, JS::Realm& realm, AK::URL base_url, MutedErrors muted_errors)
{
// 1. If muted errors was not provided, let it be false. (NOTE: This is taken care of by the default argument.)
// 2. If muted errors is true, then set baseURL to about:blank.
if (muted_errors == MutedErrors::Yes)
base_url = "about:blank";
// FIXME: 3. If scripting is disabled for settings, then set source to the empty string.
// 4. Let script be a new classic script that this algorithm will subsequently initialize.
auto script = adopt_ref(*new ClassicScript(move(base_url), move(filename)));
// FIXME: 5. Set script's settings object to settings.
// 6. Set script's base URL to baseURL. (NOTE: This was already done when constructing.)
// FIXME: 7. Set script's fetch options to options.
// 8. Set script's muted errors to muted errors.
script->m_muted_errors = muted_errors;
// FIXME: 9. Set script's parse error and error to rethrow to null.
// 10. Let result be ParseScript(source, settings's Realm, script).
auto parse_timer = Core::ElapsedTimer::start_new();
auto result = JS::Script::parse(source, realm, script->filename());
dbgln_if(HTML_SCRIPT_DEBUG, "ClassicScript: Parsed {} in {}ms", script->filename(), parse_timer.elapsed());
// 11. If result is a list of errors, then:
if (result.is_error()) {
// FIXME: 1. Set script's parse error and its error to rethrow to result[0].
// 2. Return script.
return script;
}
// 12. Set script's record to result.
script->m_script_record = result.release_value();
// 13. Return script.
return script;
}
// https://html.spec.whatwg.org/multipage/webappapis.html#run-a-classic-script
JS::Value ClassicScript::run(RethrowErrors rethrow_errors)
{
if (!m_script_record) {
// FIXME: Throw a SyntaxError per the spec.
dbgln("ClassicScript: Unable to run script {}", filename());
return {};
}
dbgln_if(HTML_SCRIPT_DEBUG, "ClassicScript: Running script {}", filename());
(void)rethrow_errors;
auto timer = Core::ElapsedTimer::start_new();
// 6. Otherwise, set evaluationStatus to ScriptEvaluation(script's record).
auto interpreter = JS::Interpreter::create_with_existing_realm(m_script_record->realm());
auto evaluation_status = interpreter->run(*m_script_record);
// FIXME: If ScriptEvaluation does not complete because the user agent has aborted the running script, leave evaluationStatus as null.
dbgln_if(HTML_SCRIPT_DEBUG, "ClassicScript: Finished running script {}, Duration: {}ms", filename(), timer.elapsed());
if (evaluation_status.is_error()) {
// FIXME: Propagate error according to the spec.
report_exception(evaluation_status);
return {};
}
return evaluation_status.value();
}
ClassicScript::ClassicScript(AK::URL base_url, String filename)
: Script(move(base_url), move(filename))
{
}
ClassicScript::~ClassicScript()
{
}
}
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