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ferret/pkg/stdlib/objects/has.go
2018-10-14 13:06:27 -04:00

39 lines
765 B
Go

package objects
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
// Has returns the value stored by the given key.
// @params (String) - The key name string.
// @returns (Boolean) - True if the key exists else false.
func Has(_ 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], core.ObjectType)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[1], core.StringType)
if err != nil {
return values.None, err
}
obj := args[0].(*values.Object)
keyName := args[1].(values.String)
_, has := obj.Get(keyName)
return has, nil
}