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 * Copyright (C) 2014-2019 Appsicle
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package com.questdb.std.str;

import com.questdb.std.Chars;
import com.questdb.std.Misc;
import org.jetbrains.annotations.NotNull;

public abstract class AbstractCharSequence implements CharSequence, CloneableMutable {

    public static String getString(CharSequence cs) {
        final CharSink b = Misc.getThreadLocalBuilder();
        b.put(cs);
        return b.toString();
    }

    @Override
    @SuppressWarnings("unchecked")
    public  T copy() {
        return (T) this.toString();
    }

    @Override
    public int hashCode() {
        return Chars.hashCode(this);
    }

    @Override
    public boolean equals(Object obj) {
        return this == obj || obj instanceof CharSequence && Chars.equals(this, (CharSequence) obj);
    }

    @NotNull
    @Override
    public String toString() {
        return getString(this);
    }

    @Override
    public CharSequence subSequence(int start, int end) {
        throw new UnsupportedOperationException();
    }
}