func isDirectlyConvertible(in, out *types.Type, preexisting conversions) bool {
// If one of the types is Alias, resolve it.
if in.Kind == types.Alias {
return isConvertible(in.Underlying, out, preexisting)
}
if out.Kind == types.Alias {
return isConvertible(in, out.Underlying, preexisting)
}
if in.Kind != out.Kind {
return false
}
switch in.Kind {
case types.Builtin, types.Struct, types.Map, types.Slice, types.Pointer:
default:
// We don't support conversion of other types yet.
return false
}
switch out.Kind {
case types.Builtin, types.Struct, types.Map, types.Slice, types.Pointer:
default:
// We don't support conversion of other types yet.
return false
}
switch in.Kind {
case types.Builtin:
if in == out {
return true
}
// TODO: Support more conversion types.
return types.IsInteger(in) && types.IsInteger(out)
case types.Struct:
convertible := true
for _, inMember := range in.Members {
// Check if there is an out member with that name.
outMember, found := findMember(out, inMember.Name)
if !found {
// Check if the member doesn't have comment:
// "+ genconversion=false"
// comment to ignore this field for conversion.
// TODO: Switch to SecondClosestCommentLines.
if types.ExtractCommentTags("+", inMember.CommentLines)["genconversion"] == "false" {
continue
}
return false
}
convertible = convertible && isConvertible(inMember.Type, outMember.Type, preexisting)
}
return convertible
case types.Map:
return isConvertible(in.Key, out.Key, preexisting) && isConvertible(in.Elem, out.Elem, preexisting)
case types.Slice:
return isConvertible(in.Elem, out.Elem, preexisting)
case types.Pointer:
return isConvertible(in.Elem, out.Elem, preexisting)
}
glog.Fatalf("All other types should be filtered before")
return false
}
func isDirectlyConvertible(in, out *types.Type, manualConversions conversionFuncMap) bool {
// If one of the types is Alias, resolve it.
if in.Kind == types.Alias {
return isConvertible(in.Underlying, out, manualConversions)
}
if out.Kind == types.Alias {
return isConvertible(in, out.Underlying, manualConversions)
}
if in == out {
return true
}
if in.Kind != out.Kind {
return false
}
switch in.Kind {
case types.Builtin, types.Struct, types.Map, types.Slice, types.Pointer:
default:
// We don't support conversion of other types yet.
return false
}
switch in.Kind {
case types.Builtin:
// TODO: Support more conversion types.
return types.IsInteger(in) && types.IsInteger(out)
case types.Struct:
convertible := true
for _, inMember := range in.Members {
// Check if there is an out member with that name.
outMember, found := findMember(out, inMember.Name)
if !found {
// Check if the member has opted out with:
// "+k8s:conversion-gen=false"
// TODO: Switch to SecondClosestCommentLines.
if tagvals := extractTag(inMember.CommentLines); tagvals != nil && tagvals[0] == "false" {
glog.V(5).Infof("field %v.%s requests no conversion generation, skipping", in, inMember.Name)
continue
}
return false
}
convertible = convertible && isConvertible(inMember.Type, outMember.Type, manualConversions)
}
return convertible
case types.Map:
return isConvertible(in.Key, out.Key, manualConversions) && isConvertible(in.Elem, out.Elem, manualConversions)
case types.Slice:
return isConvertible(in.Elem, out.Elem, manualConversions)
case types.Pointer:
return isConvertible(in.Elem, out.Elem, manualConversions)
}
glog.Fatalf("All other types should be filtered before")
return false
}
func isDirectlyConvertible(in, out *types.Type, preexisting conversions) bool {
// If one of the types is Alias, resolve it.
if in.Kind == types.Alias {
return isConvertible(in.Underlying, out, preexisting)
}
if out.Kind == types.Alias {
return isConvertible(in, out.Underlying, preexisting)
}
if in.Kind != out.Kind {
return false
}
switch in.Kind {
case types.Builtin, types.Struct, types.Map, types.Slice, types.Pointer:
default:
// We don't support conversion of other types yet.
return false
}
switch out.Kind {
case types.Builtin, types.Struct, types.Map, types.Slice, types.Pointer:
default:
// We don't support conversion of other types yet.
return false
}
switch in.Kind {
case types.Builtin:
if in == out {
return true
}
// TODO: Support more conversion types.
return types.IsInteger(in) && types.IsInteger(out)
case types.Struct:
convertible := true
for _, inMember := range in.Members {
// Check if there is an out member with that name.
outMember, found := findMember(out, inMember.Name)
if !found {
return false
}
convertible = convertible && isConvertible(inMember.Type, outMember.Type, preexisting)
}
return convertible
case types.Map:
return isConvertible(in.Key, out.Key, preexisting) && isConvertible(in.Elem, out.Elem, preexisting)
case types.Slice:
return isConvertible(in.Elem, out.Elem, preexisting)
case types.Pointer:
return isConvertible(in.Elem, out.Elem, preexisting)
}
glog.Fatalf("All other types should be filtered before")
return false
}
func isDirectlyConvertible(in, out *types.Type, manualConversions conversionFuncMap) bool {
// If one of the types is Alias, resolve it.
if in.Kind == types.Alias {
return isConvertible(in.Underlying, out, manualConversions)
}
if out.Kind == types.Alias {
return isConvertible(in, out.Underlying, manualConversions)
}
if in == out {
return true
}
if in.Kind != out.Kind {
return false
}
switch in.Kind {
case types.Builtin, types.Struct, types.Map, types.Slice, types.Pointer:
default:
// We don't support conversion of other types yet.
return false
}
switch in.Kind {
case types.Builtin:
// TODO: Support more conversion types.
return types.IsInteger(in) && types.IsInteger(out)
case types.Struct:
convertible := true
for _, inMember := range in.Members {
// Check if this member is excluded from conversion
if tagvals := extractTag(inMember.CommentLines); tagvals != nil && tagvals[0] == "false" {
continue
}
// Check if there is an out member with that name.
outMember, found := findMember(out, inMember.Name)
if !found {
glog.V(5).Infof("%s.%s is not directly convertible to %s because the destination struct field did not exist", in.Name, inMember.Name, out.Name)
return false
}
convertible = convertible && isConvertible(inMember.Type, outMember.Type, manualConversions)
}
return convertible
case types.Map:
return isConvertible(in.Key, out.Key, manualConversions) && isConvertible(in.Elem, out.Elem, manualConversions)
case types.Slice:
return isConvertible(in.Elem, out.Elem, manualConversions)
case types.Pointer:
return isConvertible(in.Elem, out.Elem, manualConversions)
}
glog.Fatalf("All other types should be filtered before")
return false
}