xyaml

func CheckNullElements ¶ added in v0.8.8

func CheckNullElements(t any, node *yaml.Node) error

CheckNullElements finds if the node has any null values in positions which decode into a nil pointer.

Such positions are elements of a sequence decoded into a slice of pointers, and values of a mapping decoded into a map with pointer values, e.g. `[]*T` and `map[string]*T`:

list:
  - null
  - field: value

Code iterating over such a slice or map rarely expects nil entries, so it is safer to reject them while decoding than to panic later on.

A null value for a struct field is allowed, as it is a conventional way to unset the field.

All offending positions are reported, joined into a single error.

func CheckUnknownKeys ¶ added in v0.8.3

func CheckUnknownKeys(t any, node *yaml.Node) error

CheckUnknownKeys finds if the node has any extra keys which do not exist in t.

func UnmarshalStrict ¶

func UnmarshalStrict[T any](data []byte, t T) error

UnmarshalStrict decodes YAML document validating that there are no extra fields found.