reflectutil

kit/reflectutil

github.com/vormadev/vorma/kit/reflectutil

Small reflection helpers for interface checks, nil/pointer inspection, and JSON tag name extraction.

Import

import "github.com/vormadev/vorma/kit/reflectutil"

Quick Start

Check interface implementation (value or pointer receiver)

readerIface := reflectutil.ToInterfaceReflectType[io.Reader]()
if reflectutil.ImplementsInterface(t, readerIface) {
	// supports io.Reader
}

ImplementsInterface returns false for nil types and panics if iface is not an interface type.

Nil-or-points-to-nil checks

isNil := reflectutil.ExcludingNoneGetIsNilOrUltimatelyPointsToNil(v)

This follows pointers/interfaces recursively and treats struct{}/*struct{} ("None" sentinel) as non-nil.

JSON field name extraction

name := reflectutil.GetJSONFieldName(field)

• returns tag name if present (json:"id,omitempty" -> id)
• returns "" for ignored fields (json:"-")
• falls back to field name when tag key is empty

API Coverage

Functions

• func ExcludingNoneGetIsNilOrUltimatelyPointsToNil(v any) bool
• func GetJSONFieldName(field reflect.StructField) string
• func ImplementsInterface(t reflect.Type, iface reflect.Type) bool
• func ToInterfaceReflectType[T any]() reflect.Type