Source/JavaScriptCore/wasm/WasmCallsiteCollection.h

/*
 * Copyright (C) 2023 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
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 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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#pragma once

#include "WasmFormat.h"
#include <wtf/FixedVector.h>
#include <wtf/Lock.h>
#include <wtf/Vector.h>

#if ENABLE(WEBASSEMBLY)

namespace JSC { namespace Wasm {

class CalleeGroup;

class CallsiteCollection {
public:
    CallsiteCollection(unsigned functionsExcudingImport)
        : m_callsites(functionsExcudingImport)
    {
    }

    void addCalleeGroupCallsites(const AbstractLocker& calleeGroupLocker, CalleeGroup&, Vector<Vector<UnlinkedWasmToWasmCall>>&&);
    void addCallsites(const AbstractLocker& calleeGroupLocker, CalleeGroup&, const FixedVector<UnlinkedWasmToWasmCall>&);

    void updateCallsitesToCallUs(const AbstractLocker& calleeGroupLocker, CalleeGroup&, CodeLocationLabel<WasmEntryPtrTag> entrypoint, uint32_t functionIndex, uint32_t functionIndexSpace);

    const Vector<Vector<UnlinkedWasmToWasmCall>>& calleeGroupCallsites() const { return m_calleeGroupCallsites; }

private:
    struct Callsite {
        CodeLocationNearCall<WasmEntryPtrTag> m_callLocation;
        CodeLocationLabel<WasmEntryPtrTag> m_target;
    };
    Vector<Vector<UnlinkedWasmToWasmCall>> m_calleeGroupCallsites;
    FixedVector<Vector<Callsite>> m_callsites;
};

} } // namespace JSC::Wasm

#endif // ENABLE(WEBASSEMBLY)