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https://gitea.wildfiregames.com/0ad/0ad
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157c6af18e
Avoid cases of filenames Update years in terms and other legal(ish) documents Don't update years in license headers, since change is not meaningful Will add linter rule in seperate commit Happy recompiling everyone! Original Patch By: Nescio Comment By: Gallaecio Differential Revision: D2620 This was SVN commit r27786.
61 lines
2.4 KiB
C++
61 lines
2.4 KiB
C++
/* Copyright (C) 2021 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_SCRIPTINTERFACE_STRUCTUREDCLONE
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#define INCLUDED_SCRIPTINTERFACE_STRUCTUREDCLONE
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#include "ScriptForward.h"
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#include <memory>
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class JSStructuredCloneData;
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namespace Script
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{
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/**
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* Structured clones are a way to serialize 'simple' JS::Values into a buffer
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* that can safely be passed between compartments and between threads.
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* A StructuredClone can be stored and read multiple times if desired.
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* We wrap them in shared_ptr so memory management is automatic and
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* thread-safe.
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*/
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using StructuredClone = std::shared_ptr<JSStructuredCloneData>;
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StructuredClone WriteStructuredClone(const ScriptRequest& rq, JS::HandleValue v);
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void ReadStructuredClone(const ScriptRequest& rq, const StructuredClone& ptr, JS::MutableHandleValue ret);
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/**
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* Construct a new value by cloning a value (possibly from a different Compartment).
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* Complex values (functions, XML, etc) won't be cloned correctly, but basic
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* types and cyclic references should be fine.
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* Takes ScriptInterfaces to enter the correct realm.
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* Caller beware - manipulating several compartments in the same function is tricky.
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* @param to - ScriptInterface of the target. Should match the rooting context of the result.
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* @param from - ScriptInterface of @a val.
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*/
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JS::Value CloneValueFromOtherCompartment(const ScriptInterface& to, const ScriptInterface& from, JS::HandleValue val);
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/**
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* Clone a JS value, ensuring that changes to the result
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* won't affect the original value.
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* Works by cloning, so the same restrictions as CloneValueFromOtherCompartment apply.
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*/
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JS::Value DeepCopy(const ScriptRequest& rq, JS::HandleValue val);
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} // namespace Script
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#endif // INCLUDED_SCRIPTINTERFACE_STRUCTUREDCLONE
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