Documentation
¶
Overview ¶
Package treeset implements a tree backed by a red-black tree.
Structure is not thread safe.
Reference: http://en.wikipedia.org/wiki/Set_%28abstract_data_type%29
Index ¶
- type Iterator
- func (iterator *Iterator) Begin()
- func (iterator *Iterator) End()
- func (iterator *Iterator) First() bool
- func (iterator *Iterator) Index() int
- func (iterator *Iterator) Last() bool
- func (iterator *Iterator) Next() bool
- func (iterator *Iterator) Prev() bool
- func (iterator *Iterator) Value() interface{}
- type Set
- func (set *Set) Add(items ...interface{})
- func (set *Set) All(f func(index int, value interface{}) bool) bool
- func (set *Set) Any(f func(index int, value interface{}) bool) bool
- func (set *Set) Clear()
- func (set *Set) Contains(items ...interface{}) bool
- func (set *Set) Each(f func(index int, value interface{}))
- func (set *Set) Empty() bool
- func (set *Set) Find(f func(index int, value interface{}) bool) (int, interface{})
- func (set *Set) FromJSON(data []byte) error
- func (set *Set) Iterator() Iterator
- func (set *Set) Map(f func(index int, value interface{}) interface{}) *Set
- func (set *Set) Remove(items ...interface{})
- func (set *Set) Select(f func(index int, value interface{}) bool) *Set
- func (set *Set) Size() int
- func (set *Set) String() string
- func (set *Set) ToJSON() ([]byte, error)
- func (set *Set) Values() []interface{}
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Iterator ¶
type Iterator struct {
// contains filtered or unexported fields
}
Iterator returns a stateful iterator whose values can be fetched by an index.
func (*Iterator) Begin ¶ added in v1.2.0
func (iterator *Iterator) Begin()
Begin resets the iterator to its initial state (one-before-first) Call Next() to fetch the first element if any.
func (*Iterator) End ¶ added in v1.2.0
func (iterator *Iterator) End()
End moves the iterator past the last element (one-past-the-end). Call Prev() to fetch the last element if any.
func (*Iterator) First ¶ added in v1.2.0
First moves the iterator to the first element and returns true if there was a first element in the container. If First() returns true, then first element's index and value can be retrieved by Index() and Value(). Modifies the state of the iterator.
func (*Iterator) Index ¶
Index returns the current element's index. Does not modify the state of the iterator.
func (*Iterator) Last ¶ added in v1.2.0
Last moves the iterator to the last element and returns true if there was a last element in the container. If Last() returns true, then last element's index and value can be retrieved by Index() and Value(). Modifies the state of the iterator.
func (*Iterator) Next ¶
Next moves the iterator to the next element and returns true if there was a next element in the container. If Next() returns true, then next element's index and value can be retrieved by Index() and Value(). If Next() was called for the first time, then it will point the iterator to the first element if it exists. Modifies the state of the iterator.
type Set ¶
type Set struct {
// contains filtered or unexported fields
}
Set holds elements in a red-black tree
func NewWith ¶
func NewWith(comparator utils.Comparator, values ...interface{}) *Set
NewWith instantiates a new empty set with the custom comparator.
func NewWithIntComparator ¶
func NewWithIntComparator(values ...interface{}) *Set
NewWithIntComparator instantiates a new empty set with the IntComparator, i.e. keys are of type int.
func NewWithStringComparator ¶
func NewWithStringComparator(values ...interface{}) *Set
NewWithStringComparator instantiates a new empty set with the StringComparator, i.e. keys are of type string.
func (*Set) Add ¶
func (set *Set) Add(items ...interface{})
Add adds the items (one or more) to the set.
func (*Set) All ¶
All passes each element of the container to the given function and returns true if the function returns true for all elements.
func (*Set) Any ¶
Any passes each element of the container to the given function and returns true if the function ever returns true for any element.
func (*Set) Contains ¶
Contains checks weather items (one or more) are present in the set. All items have to be present in the set for the method to return true. Returns true if no arguments are passed at all, i.e. set is always superset of empty set.
func (*Set) Each ¶
Each calls the given function once for each element, passing that element's index and value.
func (*Set) Find ¶
Find passes each element of the container to the given function and returns the first (index,value) for which the function is true or -1,nil otherwise if no element matches the criteria.
func (*Set) FromJSON ¶ added in v1.9.0
FromJSON populates the set from the input JSON representation.
func (*Set) Map ¶
Map invokes the given function once for each element and returns a container containing the values returned by the given function.
func (*Set) Remove ¶
func (set *Set) Remove(items ...interface{})
Remove removes the items (one or more) from the set.
func (*Set) Select ¶
Select returns a new container containing all elements for which the given function returns a true value.
Source Files