nl_tokens: Update a source s definition . This is a heavy - handed operation that will just mixin whatever is in the new object . @param { Object } state Current state . @param { Object } action Action to handle .
pl_tokens: function updateSource ( state , action ) { const old_source = state . sources [ action . sourceName ] ; const new_source = { } ; new_source [ <mask> . sourceName ] = Object . assign ( { } , old_source , action . sourceDef ) ; const new_sources = Object . assign ( { } , state . sources , new_source ) ; let metadata ; if ( new_source [ action . sourceName ] . type === 'geojson' ) { metadata = incrementVersion ( state . metadata , dataVersionKey ( action . sourceName ) ) ; } else { metadata = incrementVersion ( state . metadata , SOURCE_VERSION_KEY ) ; } return Object . assign ( { } , state , { sources : Object . assign ( { } , state . sources , new_sources ) , } , metadata ) ; }