/*
 * Copyright (c) 2020, Oracle and/or its affiliates.
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 * All rights reserved.
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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.
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 * 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.runtime.nodes.literals;

import com.oracle.truffle.api.CompilerDirectives;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;

This node represents a literal metadata string. Some LLVM builtins accept metadata string
arguments. This must never be used at runtime, the argument needs to be consumed by the node
factory.
/**
 * This node represents a literal metadata string. Some LLVM builtins accept metadata string
 * arguments. This must never be used at runtime, the argument needs to be consumed by the node
 * factory.
 */
public abstract class LLVMMetaLiteralNode extends LLVMExpressionNode {

    private final Object meta;

    LLVMMetaLiteralNode(Object meta) {
        this.meta = meta;
    }

    public Object getMetadata() {
        return meta;
    }

    @Specialization
    public Object doError() {
        throw CompilerDirectives.shouldNotReachHere("Unexpected metadata access at runtime");
    }
}