package eztools

import "errors"

const (
	// DefID is the default ID
	DefID = 0
	// AllID stands for all items, which itself is out of valid ID scope
	AllID = DefID - 1
	// InvalidID better to be negative to be different from a normal ID
	//	it is used as indexes into slices, too
	InvalidID = DefID - 2 //pairs defined some related
)

var (
	// ErrNoValidResults stands for no valid results
	ErrNoValidResults = errors.New("no valid results")
	// ErrOutOfBound stands for out of bound
	ErrOutOfBound = errors.New("out of bound")
	// ErrInvalidInput stands for invalid input
	ErrInvalidInput = errors.New("invalid input")
	// ErrInExistence stands for result from input already in existence
	ErrInExistence = errors.New("in existence")
	// ErrAccess stands for access failure, such as privilege, collision
	ErrAccess = errors.New("access failure")
	// ErrAbort stands for abort, such as requesting to exit from UI
	ErrAbort = errors.New("abort")
	// ErrIncomplete stands for incomplete results, that is maybe minor
	ErrIncomplete = errors.New("incomplete results")
)