Class LineNumberNode

src/main/java/io/airlift/bytecode/debug/LineNumberNode.java:27–71

import static com.google.common.base.MoreObjects.toStringHelper;

public class LineNumberNode
        implements DebugNode
{
    private final int lineNumber;
    private final LabelNode label = new LabelNode();

    public LineNumberNode(int lineNumber)
    {
        this.lineNumber = lineNumber;
    }

    @Override
    public void accept(MethodVisitor visitor, MethodGenerationContext generationContext)
    {
        if (generationContext.updateLineNumber(lineNumber)) {
            label.accept(visitor, generationContext);
            visitor.visitLineNumber(lineNumber, label.getLabel());
        }
    }

    public int getLineNumber()
    {
        return lineNumber;
    }

    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("line", lineNumber)
                .toString();
    }

    @Override
    public List<BytecodeNode> getChildNodes()
    {
        return ImmutableList.of();
    }

    @Override
    public <T> T accept(BytecodeNode parent, BytecodeVisitor<T> visitor)
    {
        return visitor.visitLineNumber(parent, this);
    }
}