mirror of
https://github.com/MontFerret/ferret.git
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24d8eedd4c
* 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
51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
package arrays
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import (
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"context"
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"github.com/MontFerret/ferret/pkg/runtime/core"
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"github.com/MontFerret/ferret/pkg/runtime/values"
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"github.com/MontFerret/ferret/pkg/runtime/values/types"
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)
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// SLICE returns a new sliced array.
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// @param {Any[]} array - Source array.
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// @param {Int} start - Start position of extraction.
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// @param {Int} [length] - Read indicating how many elements to extract.
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// @return {Any[]} - Sliced array.
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func Slice(_ context.Context, args ...core.Value) (core.Value, error) {
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err := core.ValidateArgs(args, 2, 3)
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if err != nil {
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return values.None, err
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}
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err = core.ValidateType(args[0], types.Array)
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if err != nil {
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return values.None, err
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}
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err = core.ValidateType(args[1], types.Int)
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if err != nil {
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return values.None, err
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}
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arr := args[0].(*values.Array)
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start := args[1].(values.Int)
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length := values.NewInt(int(arr.Length()))
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if len(args) > 2 {
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if args[2].Type() == types.Int {
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arg2 := args[2].(values.Int)
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if arg2 > 0 {
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length = start + args[2].(values.Int)
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}
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}
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}
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return arr.Slice(start, length), nil
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}
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