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mirror of https://github.com/MontFerret/ferret.git synced 2025-02-01 13:07:49 +02:00
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

38 lines
826 B
Go

package collections
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/collections"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
"github.com/MontFerret/ferret/pkg/runtime/values/types"
)
// LENGTH returns the length of a measurable value.
// @param {Measurable} value - The value to measure.
// @return {Int} - The length of the value.
func Length(_ context.Context, inputs ...core.Value) (core.Value, error) {
err := core.ValidateArgs(inputs, 1, 1)
if err != nil {
return values.None, err
}
value := inputs[0]
c, ok := value.(collections.Measurable)
if !ok {
return values.None, core.TypeError(value.Type(),
types.String,
types.Array,
types.Object,
types.Binary,
core.NewType("Measurable"),
)
}
return c.Length(), nil
}