Method equals

chapter18/src/main/java/com/seaofnodes/simple/node/Node.java:508–518

( Object o )

    // Two nodes are equal if they have the same inputs and the same "opcode"
    // which means the same Java class, plus same internal parts.
    @Override public final boolean equals( Object o ) {
        if( o==this ) return true;
        if( o.getClass() != getClass() ) return false;
        Node n = (Node)o;
        int len = _inputs.size();
        if( len != n._inputs.size() ) return false;
        for( int i=0; i<len; i++ )
            if( in(i) != n.in(i) )
                return false;
        return eq(n);
    }
    // Subclasses add extra checks (such as ConstantNodes have same constant),
    // and can assume "this!=n" and has the same Java class.
    boolean eq( Node n ) { return true; }