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ferret/pkg/stdlib/arrays/lib.go
2018-10-28 01:45:26 -04:00

55 lines
1.2 KiB
Go

package arrays
import (
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
func NewLib() map[string]core.Function {
return map[string]core.Function{
"APPEND": Append,
"FIRST": First,
"FLATTEN": Flatten,
"INTERSECTION": Intersection,
"LAST": Last,
"MINUS": Minus,
"NTH": Nth,
"OUTERSECTION": Outersection,
"POP": Pop,
"POSITION": Position,
"PUSH": Push,
"REMOVE_NTH": RemoveNth,
"REMOVE_VALUE": RemoveValue,
"REMOVE_VALUES": RemoveValues,
"REVERSE": Reverse,
"SHIFT": Shift,
"SLICE": Slice,
"SORTED": Sorted,
"SORTED_UNIQUE": SortedUnique,
"UNION": Union,
"UNION_DISTINCT": UnionDistinct,
"UNIQUE": Unique,
"UNSHIFT": Unshift,
}
}
func ToUniqueArray(arr *values.Array) *values.Array {
hashTable := make(map[uint64]bool)
result := values.NewArray(int(arr.Length()))
arr.ForEach(func(item core.Value, _ int) bool {
h := item.Hash()
_, exists := hashTable[h]
if !exists {
hashTable[h] = true
result.Push(item)
}
return true
})
return result
}