/*
 * Copyright (c) 2016, Oracle and/or its affiliates.
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 * 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 notice, this list of
 * conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided
 * with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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package com.oracle.truffle.llvm.parser.model.symbols.constants.floatingpoint;

import java.util.Arrays;

import com.oracle.truffle.llvm.parser.model.visitors.ConstantVisitor;
import com.oracle.truffle.llvm.runtime.types.PrimitiveType;

public final class X86FP80Constant extends FloatingPointConstant {

    private final byte[] value;

    X86FP80Constant(byte[] value) {
        super(PrimitiveType.X86_FP80);
        this.value = value;
    }

    @Override
    public void accept(ConstantVisitor visitor) {
        visitor.visit(this);
    }

    public byte[] getValue() {
        return value;
    }

    @Override
    public String toString() {
        return Arrays.toString(value);
    }

    private static final int HEX_MASK = 0xf;

    private static final int BYTE_MSB_SHIFT = 4;

    @Override
    public String getStringValue() {
        final StringBuilder builder = new StringBuilder("0xK");
        for (byte aValue : value) {
            builder.append(String.format("%x%x", (aValue >>> BYTE_MSB_SHIFT) & HEX_MASK, aValue & HEX_MASK));
        }
        return builder.toString();
    }
}