Method Eval

runtime/sam/expr/eval.go:136–169

(this super.Value)

}

func (i *In) Eval(this super.Value) super.Value {
	elem := i.elem.Eval(this).Deunion()
	if elem.IsError() {
		return elem
	}
	if elem.IsNull() {
		return super.Null
	}
	container := i.container.Eval(this)
	if container.IsError() {
		return container
	}
	var hasnull bool
	err := container.Walk(func(typ super.Type, body scode.Bytes) error {
		if super.TypeUnder(typ) == super.TypeNull {
			hasnull = true
		}
		if coerce.Equal(elem, super.NewValue(typ, body)) {
			return errMatch
		}
		return nil
	})
	switch err {
	case errMatch:
		return super.True
	case nil:
		if hasnull {
			return super.Null
		}
		return super.False
	default:
		return i.sctx.NewError(err)
	}
}

type Equal struct {
	numeric