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package com.oracle.svm.core.c.enums;

import org.graalvm.nativeimage.c.constant.CEnumValue;

public abstract class EnumRuntimeData {

    private final long[] javaToC;

    protected EnumRuntimeData(long[] javaToC) {
        this.javaToC = javaToC;
    }

    protected long convertJavaToCLong(Enum<?> javaValue) {
        return javaToC[javaValue.ordinal()];
    }

    
We need a separate method for single-slot return values. Since a call to this method replaces a call to the CEnumValue annotated method, we must match the slot-count of the original method otherwise frame state handling gets confused. /**
     * We need a separate method for single-slot return values. Since a call to this method replaces
     * a call to the {@link CEnumValue} annotated method, we must match the slot-count of the
     * original method otherwise frame state handling gets confused.
     */
    protected int convertJavaToCInt(Enum<?> javaValue) {
        return (int) convertJavaToCLong(javaValue);
    }

    protected abstract Enum<?> convertCToJava(long cValue);
}