expression

var (
	// ErrEmptyExpression is returned when an expr field tag carries no expression.
	ErrEmptyExpression = errors.New("expression: empty expression in field tag")
	// ErrFieldNotSettable is returned when the target field cannot be assigned.
	ErrFieldNotSettable = errors.New("expression: target field is not settable")
)

var Module = fx.Module(
	"vef:expression",
	fx.Provide(
		exprlang.New,
		fx.Annotate(
			NewEngineResolver,
			fx.ResultTags(`group:"vef:api:handler_param_resolvers"`),
		),
		fx.Annotate(
			NewFieldTransformer,
			fx.ResultTags(`group:"vef:mold:field_transformers"`),
		),
	),
)