package mem

import (
	"errors"
	"fmt"
)

var (
	ErrMemOverflow = errors.New("memory overflow, cannot allocate more than 10000 memory cells")
)

type ErrInvalidCellKind struct {
	Kind CellKind
}

func (e ErrInvalidCellKind) Error() string {
	return fmt.Sprintf("cannot allocate cell of kind %s", e.Kind)
}

type ErrInvalidMemAccess struct {
	Ptr Ptr
}

func (e ErrInvalidMemAccess) Error() string {
	return fmt.Sprintf("invalid memory access at %d", e.Ptr)
}

type ErrDifferingCellKind struct {
	Ptr      Ptr
	Expected CellKind
	Got      CellKind
}

func (e ErrDifferingCellKind) Error() string {
	return fmt.Sprintf("tried assigning %v to mem cell of type %v at %d", e.Got, e.Expected, e.Ptr)
}