bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
/*
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* Copyright (c) 2022-2023, networkException <networkexception@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/URL.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibJS/Heap/HeapFunction.h>
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#include <LibWeb/HTML/Scripting/ModuleScript.h>
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namespace Web::HTML {
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class ModuleLocationTuple {
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public:
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ModuleLocationTuple(AK::URL url, DeprecatedString type)
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: m_url(move(url))
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, m_type(move(type))
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{
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}
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AK::URL const& url() const { return m_url; }
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DeprecatedString const& type() const { return m_type; }
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bool operator==(ModuleLocationTuple const& other) const
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{
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return other.url() == m_url && other.type() == m_type;
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}
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private:
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AK::URL m_url;
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DeprecatedString m_type;
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};
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// https://html.spec.whatwg.org/multipage/webappapis.html#module-map
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class ModuleMap final : public JS::Cell {
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JS_CELL(ModuleMap, Cell);
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JS_DECLARE_ALLOCATOR(ModuleMap);
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public:
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ModuleMap() = default;
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~ModuleMap() = default;
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enum class EntryType {
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Fetching,
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Failed,
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ModuleScript
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};
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struct Entry {
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EntryType type;
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JS::GCPtr<JavaScriptModuleScript> module_script;
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};
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using CallbackFunction = JS::NonnullGCPtr<JS::HeapFunction<void(Entry)>>;
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bool is_fetching(AK::URL const& url, DeprecatedString const& type) const;
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bool is_failed(AK::URL const& url, DeprecatedString const& type) const;
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bool is(AK::URL const& url, DeprecatedString const& type, EntryType) const;
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Optional<Entry> get(AK::URL const& url, DeprecatedString const& type) const;
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AK::HashSetResult set(AK::URL const& url, DeprecatedString const& type, Entry);
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void wait_for_change(JS::Heap&, AK::URL const& url, DeprecatedString const& type, Function<void(Entry)> callback);
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private:
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virtual void visit_edges(JS::Cell::Visitor&) override;
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HashMap<ModuleLocationTuple, Entry> m_values;
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HashMap<ModuleLocationTuple, Vector<CallbackFunction>> m_callbacks;
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};
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}
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namespace AK {
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template<>
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struct Traits<Web::HTML::ModuleLocationTuple> : public DefaultTraits<Web::HTML::ModuleLocationTuple> {
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static unsigned hash(Web::HTML::ModuleLocationTuple const& tuple)
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{
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return pair_int_hash(tuple.url().to_deprecated_string().hash(), tuple.type().hash());
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}
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};
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}
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