collections

package
v0.4.0 Latest Latest
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 Go to latest Published: Oct 25, 2018 License: MIT Imports: 8 Imported by: 0

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Index

Constants

View Source 
const (
	DefaultValueVar = "value"
	DefaultKeyVar   = "key"
)

Variables

View Source 
var (
	ErrExhausted         = core.Error(core.ErrInvalidOperation, "iterator has been exhausted")
	ErrResultSetMismatch = core.Error(core.ErrInvalidArgument, "count of values in result set is less that count of variables")
)
View Source 
var NoopIterator = &noopIterator{}

Functions

func IsValidSortDirection 

func IsValidSortDirection(direction SortDirection) bool

func ValidateDataSet added in v0.4.0 

func ValidateDataSet(set DataSet, variables Variables) error

Types

type Collection 

type Collection interface {
	Length() values.Int
}

type Comparator 

type Comparator func(first DataSet, second DataSet) (int, error)

type DataSet added in v0.4.0 

type DataSet map[string]core.Value

func NewDataSet added in v0.4.0 

func NewDataSet() DataSet

func ToSlice 

func ToSlice(iterator Iterator) ([]DataSet, error)

func (DataSet) Apply added in v0.4.0 

func (ds DataSet) Apply(scope *core.Scope, variables Variables) error

func (DataSet) Compare added in v0.4.0 

func (ds DataSet) Compare(other DataSet) int

func (DataSet) Get added in v0.4.0 

func (ds DataSet) Get(key string) core.Value

func (DataSet) Hash added in v0.4.0 

func (ds DataSet) Hash() uint64

func (DataSet) Set added in v0.4.0 

func (ds DataSet) Set(key string, value core.Value)

type FilterIterator 

type FilterIterator struct {
	// contains filtered or unexported fields
}

func NewFilterIterator 

func NewFilterIterator(src Iterator, predicate FilterPredicate) (*FilterIterator, error)

func (*FilterIterator) HasNext 

func (iterator *FilterIterator) HasNext() bool

func (*FilterIterator) Next 

func (iterator *FilterIterator) Next() (DataSet, error)

type FilterPredicate 

type FilterPredicate func(set DataSet) (bool, error)

type HTMLNodeIterator 

type HTMLNodeIterator struct {
	// contains filtered or unexported fields
}

func (*HTMLNodeIterator) HasNext 

func (iterator *HTMLNodeIterator) HasNext() bool

func (*HTMLNodeIterator) Next 

func (iterator *HTMLNodeIterator) Next() (DataSet, error)

type IndexedCollection added in v0.4.0 

type IndexedCollection interface {
	Collection
	Get(idx values.Int) core.Value
	Set(idx values.Int, value core.Value) error
}

type IndexedIterator added in v0.4.0 

type IndexedIterator struct {
	// contains filtered or unexported fields
}

func (*IndexedIterator) HasNext added in v0.4.0 

func (iterator *IndexedIterator) HasNext() bool

func (*IndexedIterator) Next added in v0.4.0 

func (iterator *IndexedIterator) Next() (DataSet, error)

type Iterable 

type Iterable interface {
	Variables() Variables
	Iterate(ctx context.Context, scope *core.Scope) (Iterator, error)
}

type Iterator 

type Iterator interface {
	HasNext() bool
	Next() (DataSet, error)
}

func NewDefaultIndexedIterator added in v0.4.0 

func NewDefaultIndexedIterator(
	input IndexedCollection,
) Iterator

func NewDefaultKeyedIterator added in v0.4.0 

func NewDefaultKeyedIterator(input KeyedCollection) Iterator

func NewDefaultMapIterator added in v0.4.0 

func NewDefaultMapIterator(
	input map[string]core.Value,
) Iterator

func NewDefaultSliceIterator added in v0.4.0 

func NewDefaultSliceIterator(input []core.Value) Iterator

func NewHTMLNodeIterator 

func NewHTMLNodeIterator(
	valVar,
	keyVar string,
	input values.HTMLNode,
) Iterator

func NewIndexedIterator added in v0.4.0 

func NewIndexedIterator(
	valVar,
	keyVar string,
	input IndexedCollection,
) Iterator

func NewKeyedIterator added in v0.4.0 

func NewKeyedIterator(
	valVar,
	keyVar string,
	input KeyedCollection,
) Iterator

func NewMapIterator 

func NewMapIterator(
	valVar,
	keyVar string,
	input map[string]core.Value,
) Iterator

func NewSliceIterator 

func NewSliceIterator(
	valVar,
	keyVar string,
	input []core.Value,
) Iterator

type KeyedCollection added in v0.4.0 

type KeyedCollection interface {
	Collection
	Keys() []string
	Get(key values.String) (core.Value, values.Boolean)
	Set(key values.String, value core.Value)
}

type KeyedIterator added in v0.4.0 

type KeyedIterator struct {
	// contains filtered or unexported fields
}

func (*KeyedIterator) HasNext added in v0.4.0 

func (iterator *KeyedIterator) HasNext() bool

func (*KeyedIterator) Next added in v0.4.0 

func (iterator *KeyedIterator) Next() (DataSet, error)

type LimitIterator 

type LimitIterator struct {
	// contains filtered or unexported fields
}

func NewLimitIterator 

func NewLimitIterator(src Iterator, count, offset int) (*LimitIterator, error)

func (*LimitIterator) HasNext 

func (i *LimitIterator) HasNext() bool

func (*LimitIterator) Next 

func (i *LimitIterator) Next() (DataSet, error)

type MapIterator 

type MapIterator struct {
	// contains filtered or unexported fields
}

func (*MapIterator) HasNext 

func (iterator *MapIterator) HasNext() bool

func (*MapIterator) Next 

func (iterator *MapIterator) Next() (DataSet, error)

type SliceIterator 

type SliceIterator struct {
	// contains filtered or unexported fields
}

func (*SliceIterator) HasNext 

func (iterator *SliceIterator) HasNext() bool

func (*SliceIterator) Next 

func (iterator *SliceIterator) Next() (DataSet, error)

type SortDirection 

type SortDirection int
const (
	SortDirectionAsc  SortDirection = 1
	SortDirectionDesc SortDirection = -1
)

func SortDirectionFromString 

func SortDirectionFromString(str string) SortDirection

type SortIterator 

type SortIterator struct {
	// contains filtered or unexported fields
}

func NewSortIterator 

func NewSortIterator(
	src Iterator,
	comparators ...*Sorter,
) (*SortIterator, error)

func (*SortIterator) HasNext 

func (iterator *SortIterator) HasNext() bool

func (*SortIterator) Next 

func (iterator *SortIterator) Next() (DataSet, error)

type Sorter 

type Sorter struct {
	// contains filtered or unexported fields
}

func NewSorter 

func NewSorter(fn Comparator, direction SortDirection) (*Sorter, error)

type UniqueIterator 

type UniqueIterator struct {
	// contains filtered or unexported fields
}

func NewUniqueIterator 

func NewUniqueIterator(src Iterator, hashKey string) (*UniqueIterator, error)

func (*UniqueIterator) HasNext 

func (iterator *UniqueIterator) HasNext() bool

func (*UniqueIterator) Next 

func (iterator *UniqueIterator) Next() (DataSet, error)

type Variables added in v0.4.0 

type Variables []string

Source Files

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