Can Reflection Retrieve Variable Names from Go Templates for Dynamic Markup Replacement?

Variable Name Retrieval in Templates with Reflection

In template handling, it may be desirable to dynamically replace markup placeholders with variable values. To create a template using variables stored in a slice, you may seek to retrieve their names directly from the source code. However, it is important to note that this is not possible using reflection.

Reflection allows access to a variable's type, value, and method information, but not its name in the source code. This is because a compiled program does not retain the variable names used in its source code.

In your example, you created a slice sa containing string values but not the variable names themselves. Therefore, using reflect.TypeOf(v).Name() only provides the type of the variable, not its name.

The solution to this issue is to use a different approach. Instead of storing variable values directly in a slice, consider using a map to associate variable names with their values. This allows you to access both the variable name and its value, enabling you to perform template substitution effectively.

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