How do I implement UnmarshalPlist?

[henrahmagix]

I'm a bit confused about how to use/implement UnmarshalPlist. What am I meant to pass to the function func (i interface{}) error? When I pass the struct, I get an infinite loop.

My use case is I'm trying to unmarshal an iOS Workflow plist, but I'm stuck on the key WFTextActionText that can either be <string> or <dict>. I thought I could implement UnmarshalPlist on the struct that holds WFTextActionText to determine whether to set a WFTextActionTextString or WFTextActionTextDict value.

Thanks in advanced =)

Example plist and Go file: https://gist.github.com/henrahmagix/7b8909a02dcd326aa29dcd46be1dd8c6

Example string:

<key>WFTextActionText</key>
<string>City 1, state 1,country 1</string>

Example dict:

<key>WFTextActionText</key>
<dict>
	<key>Value</key>
	<dict>
		<key>attachmentsByRange</key>
		<dict>
			<key>{13, 1}</key>
			<dict>
				<key>Type</key>
				<string>Variable</string>
				<key>VariableName</key>
				<string>State</string>
			</dict>
			<key>{23, 1}</key>
			<dict>
				<key>Type</key>
				<string>Variable</string>
				<key>VariableName</key>
				<string>Country</string>
			</dict>
			<key>{5, 1}</key>
			<dict>
				<key>Type</key>
				<string>Variable</string>
				<key>VariableName</key>
				<string>City</string>
			</dict>
		</dict>
		<key>string</key>
		<string>City= State= Country=</string>
	</dict>
	<key>WFSerializationType</key>
	<string>WFTextTokenString</string>
</dict>