Function makeTypes

protocol/protocol.go:251–289

(t reflect.Type)

}

func makeTypes(t reflect.Type) []messageType {
	minVersion := int16(-1)
	maxVersion := int16(-1)

	// All future versions will be flexible (according to spec), so don't need to
	// worry about maxes here.
	minFlexibleVersion := int16(-1)

	forEachStructField(t, func(_ reflect.Type, _ index, tag string) {
		forEachStructTag(tag, func(tag structTag) bool {
			if minVersion < 0 || tag.MinVersion < minVersion {
				minVersion = tag.MinVersion
			}
			if maxVersion < 0 || tag.MaxVersion > maxVersion {
				maxVersion = tag.MaxVersion
			}
			if tag.TagID > -2 && (minFlexibleVersion < 0 || tag.MinVersion < minFlexibleVersion) {
				minFlexibleVersion = tag.MinVersion
			}
			return true
		})
	})

	types := make([]messageType, 0, (maxVersion-minVersion)+1)

	for v := minVersion; v <= maxVersion; v++ {
		flexible := minFlexibleVersion >= 0 && v >= minFlexibleVersion

		types = append(types, messageType{
			version:  v,
			gotype:   t,
			flexible: flexible,
			decode:   decodeFuncOf(t, v, flexible, structTag{}),
			encode:   encodeFuncOf(t, v, flexible, structTag{}),
		})
	}

	return types
}

type structTag struct {
	MinVersion int16