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ferret/pkg/stdlib/arrays/remove_values.go
Tim Voronov 24d8eedd4c
Feature/doc markup (#543)
* Added release notes

* #509 fixedOCOD typo

* Updated values

* Updated comments

* Changed stdlib docs format

* Changed format of array in docs

* Use 'any' instead of 'value' in docs

* New format for optional params

* Updated docs for testing package

* Added namespace information
2020-08-07 21:49:29 -04:00

60 lines
1.2 KiB
Go

package arrays
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
"github.com/MontFerret/ferret/pkg/runtime/values/types"
)
// REMOVE_VALUES returns a new array with removed all occurrences of values in a given array.
// @param {Any[]} array - Source array.
// @param {Any[]} values - Target values.
// @return {Any[]} - A new array with removed all occurrences of values in a given array.
func RemoveValues(_ context.Context, args ...core.Value) (core.Value, error) {
err := core.ValidateArgs(args, 2, 2)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[0], types.Array)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[1], types.Array)
if err != nil {
return values.None, err
}
arr := args[0].(*values.Array)
vals := args[1].(*values.Array)
result := values.NewArray(int(arr.Length()))
lookupTable := make(map[uint64]bool)
vals.ForEach(func(value core.Value, idx int) bool {
lookupTable[value.Hash()] = true
return true
})
arr.ForEach(func(value core.Value, idx int) bool {
h := value.Hash()
_, exists := lookupTable[h]
if !exists {
result.Push(value)
}
return true
})
return result, nil
}