nl_tokens: / * The top - most fromState s parent that must be exited or undefined if the two states are in distinct branches of the tree .
pl_tokens: function transitionRoot ( fromState , toState , isUpdate , paramsDiff ) { let closestCommonParent const parents = [ fromState ] . concat ( fromState . parents ) . reverse ( ) // Find the closest common parent of the from/to states, if any. if ( ! isUpdate ) { for ( let i = 0 ; i < fromState . parents . length ; i ++ ) { const parent = fromState . parents [ i ] if ( toState . parents . indexOf ( <mask> ) > - 1 ) { closestCommonParent = parent break } } } // Find the top-most parent owning some updated param(s) or bail if we first reach the closestCommonParent for ( let i = 0 ; i < parents . length ; i ++ ) { const parent = parents [ i ] for ( let param in paramsDiff . all ) { if ( parent . params [ param ] || parent . queryParams [ param ] ) return { root : parent , inclusive : true } } if ( parent === closestCommonParent ) return { root : closestCommonParent , inclusive : false } } return closestCommonParent ? { root : closestCommonParent , inclusive : false } : { inclusive : true } }