README
¶
package zeroutil
The zeroutil package helps with zero value related use-cases such as initialisation.
package mypkg
import (
"go.llib.dev/frameless/pkg/zerokit"
)
type MyType struct {
V string
}
func (mt *MyType) getV() string {
return zeroutil.Init(&mt.V, func() string {
return "default-value"
})
}
Documentation
¶
Overview ¶
Package zerokit helps with zero value related use-cases such as initialisation.
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Coalesce ¶
func Coalesce[T any](vs ...T) T
Coalesce will return the first non-zero value from the provided values.
Example ¶
package main
import (
"go.llib.dev/frameless/pkg/zerokit"
)
func main() {
_ = zerokit.Coalesce("", "", "42") // -> "42"
}
func Init ¶
func Init[T any, I initialiser[T]](ptr *T, init I) T
Init will initialise a zero value through its pointer (*T), If it's not set, it assigns a value to it based on the supplied initialiser. Init is safe to use concurrently, it has no race condition.
Example ¶
package main
import (
"go.llib.dev/frameless/pkg/pointer"
"go.llib.dev/frameless/pkg/zerokit"
)
func main() {
type MyType struct {
V *string
}
var mt MyType
_ = zerokit.Init(&mt.V, func() *string {
return pointer.Of("default value from a lambda")
})
_ = zerokit.Init(&mt.V, pointer.Of(pointer.Of("default value from a pointer")))
}
Types ¶
This section is empty.
Source Files
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