40 lines
854 B
Go
40 lines
854 B
Go
package json
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import (
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"reflect"
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"github.com/hashicorp/go-msgpack/codec"
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)
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type extendFunc func(interface{}) interface{}
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var (
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extendedTypes = map[reflect.Type]extendFunc{}
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)
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func registerExtension(tpe reflect.Type, ext extendFunc) {
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extendedTypes[tpe] = ext
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}
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type nomadJsonEncodingExtensions struct{}
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// ConvertExt calls the registered conversions functions
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func (n nomadJsonEncodingExtensions) ConvertExt(v interface{}) interface{} {
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if fn, ok := extendedTypes[reflect.TypeOf(v)]; ok {
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return fn(v)
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} else {
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// shouldn't get here
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return v
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}
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}
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// UpdateExt is not used
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func (n nomadJsonEncodingExtensions) UpdateExt(_ interface{}, _ interface{}) {}
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func NomadJsonEncodingExtensions(h *codec.JsonHandle) *codec.JsonHandle {
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for tpe := range extendedTypes {
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h.SetInterfaceExt(tpe, 1, nomadJsonEncodingExtensions{})
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}
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return h
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}
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