genericsutil

kit/genericsutil

github.com/vormadev/vorma/kit/genericsutil

Generic helpers for zero values, fallback assertions, and type-erased generic pipelines.

Import

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

Common Usage

Safe type assertion with fallback

v := any("42")
n := genericsutil.AssertOrZero[int](v) // 0 (assertion failed)

Use this when fallback-to-zero is intentional.
Avoid it when assertion failure should be explicit (otherwise bugs can be hidden).

Defaulting zero values

port := genericsutil.OrDefault(cfg.Port, 8080)

Generic zero helper for erased APIs

type Convert[I any, O any] struct {
	genericsutil.ZeroHelper[I, O]
}

var z genericsutil.AnyZeroHelper = Convert[int, string]{}
_ = z.I()    // any(0)
_ = z.O()    // any("")
_ = z.IPtr() // *int
_ = z.OPtr() // *string

None and IsNone

None is an alias of struct{}:

type Ack = genericsutil.None

IsNone returns true only for:

• struct{}
• *struct{}

Named empty-struct types are not considered None.

API Reference

• type AnyZeroHelper
• type None
• type ZeroHelper[I any, O any]
• func Zero[T any]() T
• func AssertOrZero[T any](v any) T
• func OrDefault[F comparable](field F, defaultVal F) F
• func IsNone(v any) bool
• func (ZeroHelper[I, O]) I() any
• func (ZeroHelper[I, O]) O() any
• func (ZeroHelper[I, O]) IPtr() any
• func (ZeroHelper[I, O]) OPtr() any