tmplMixin.txt

// copy this and remove methods that aren't relevant to your kind.
// this has not been scripted.
// (the first part is trivial; the second part is not; and this updates rarely.  https://xkcd.com/1205/ applies.)

package mixins

import (
	ipld "github.com/ipld/go-ipld-prime/_rsrch/nodesolution"
)

// @Kind@ can be embedded in a struct to provide all the methods that
// have fixed output for any int-kinded nodes.
// (Mostly this includes all the methods which simply return ErrWrongKind.)
// Other methods will still need to be implemented to finish conforming to Node.
//
// To conserve memory and get a TypeName in errors without embedding,
// write methods on your type with a body that simply initializes this struct
// and immediately uses the relevant method;
// this is more verbose in source, but compiles to a tighter result:
// in memory, there's no embed; and in runtime, the calls will be inlined
// and thus have no cost in execution time.
type @Kind@ struct {
	TypeName string
}

func (@Kind@) ReprKind() ipld.ReprKind {
	return ipld.ReprKind_@Kind@
}
func (x @Kind@) LookupString(string) (ipld.Node, error) {
	return nil, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "LookupString", AppropriateKind: ipld.ReprKindSet_JustMap, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@) Lookup(key ipld.Node) (ipld.Node, error) {
	return nil, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "Lookup", AppropriateKind: ipld.ReprKindSet_JustMap, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@) LookupIndex(idx int) (ipld.Node, error) {
	return nil, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "LookupIndex", AppropriateKind: ipld.ReprKindSet_JustList, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@) LookupSegment(ipld.PathSegment) (ipld.Node, error) {
	return nil, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "LookupSegment", AppropriateKind: ipld.ReprKindSet_Recursive, ActualKind: ipld.ReprKind_@Kind@}
}
func (@Kind@) MapIterator() ipld.MapIterator {
	return nil
}
func (@Kind@) ListIterator() ipld.ListIterator {
	return nil
}
func (@Kind@) Length() int {
	return -1
}
func (@Kind@) IsUndefined() bool {
	return false
}
func (@Kind@) IsNull() bool {
	return false
}
func (x @Kind@) AsBool() (bool, error) {
	return false, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AsBool", AppropriateKind: ipld.ReprKindSet_JustBool, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@) AsInt() (int, error) {
	return 0, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AsInt", AppropriateKind: ipld.ReprKindSet_JustInt, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@) AsFloat() (float64, error) {
	return 0, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AsFloat", AppropriateKind: ipld.ReprKindSet_JustFloat, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@) AsString() (string, error) {
	return "", ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AsString", AppropriateKind: ipld.ReprKindSet_JustString, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@) AsBytes() ([]byte, error) {
	return nil, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AsBytes", AppropriateKind: ipld.ReprKindSet_JustBytes, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@) AsLink() (ipld.Link, error) {
	return nil, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AsLink", AppropriateKind: ipld.ReprKindSet_JustLink, ActualKind: ipld.ReprKind_@Kind@}
}

// @Kind@Assembler has similar purpose as @Kind@, but for (you guessed it)
// the NodeAssembler interface rather than the Node interface.
type @Kind@Assembler struct {
	TypeName string
}

func (x @Kind@Assembler) BeginMap(sizeHint int) (ipld.MapNodeAssembler, error) {
	return nil, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "BeginMap", AppropriateKind: ipld.ReprKindSet_JustMap, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@Assembler) BeginList(sizeHint int) (ipld.ListNodeAssembler, error) {
	return nil, ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "BeginList", AppropriateKind: ipld.ReprKindSet_JustList, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@Assembler) AssignNull() error {
	return ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AssignNull", AppropriateKind: ipld.ReprKindSet_JustNull, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@Assembler) AssignBool(bool) error {
	return ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AssignBool", AppropriateKind: ipld.ReprKindSet_JustBool, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@Assembler) AssignInt(int) error {
	return ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AssignInt", AppropriateKind: ipld.ReprKindSet_JustInt, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@Assembler) AssignFloat(float64) error {
	return ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AssignFloat", AppropriateKind: ipld.ReprKindSet_JustFloat, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@Assembler) AssignString(string) error {
	return ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AssignString", AppropriateKind: ipld.ReprKindSet_JustString, ActualKind: ipld.ReprKind_@Kind@}
}
func (x @Kind@Assembler) AssignBytes([]byte) error  {
	return ipld.ErrWrongKind{TypeName: x.TypeName, MethodName: "AssignBytes", AppropriateKind: ipld.ReprKindSet_JustBytes, ActualKind: ipld.ReprKind_@Kind@}
}