libnodes

Makes it easy to construct trees of nodes that pass arbitrary data on update.

Features:

• type safe
• allows tree traversal using VisitableNode<T>
• provides syntactic sugar and algorithms for common operations like connecting nodes and iterating over them.

Examples

Declare a node type that sends and receives integers:

class Int_IONode :
public Node<                        // descend from abstract Node class
    Inlets< int >,                  // It has one inlet that takes ints
    Outlets< int >                  // And one outlet that emits ints
>
{
public:
    // overload the default constructor to provide an onReceive listener
    Int_IONode( const string &label ) : Node< Inlets< int >, Outlets< int > >( label ) {
        // listen to the first inlet for ints
        in< 0 >().onReceive( [&]( const int &i ) {
            // store the received int in a vector
            received.push_back( i );
            // send the int to the first outlet
            this->out< 0 >().update( i );
        } );
    }

    std::vector< int > received;
};

Construct two nodes and connect them:

Int_IONode n1( "label 1" );
Int_IONode n2( "label 2" );
n1 >> n2;

Send the root node an integer, and it propagates through the tree:

n1.in< 0 >().receive( 1 );
// n2.received[0] == 1

See the tests for more examples.

MIT License

Copyright (c) 2016-2017 Ian Heisters

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.