How to Efficiently Pass String Slices to the gosqlite Exec Method with Variadic Empty Interface Parameters?

Argument Conversion for Variadic Empty Interface Parameter

In the gosqlite package, the Exec method accepts a variable number of arguments represented by the ...interface{} parameter. While individual parameters can be passed directly, passing a string slice ([]string) raises a compilation error. To address this issue, let's explore alternative approaches.

Creating an Empty Interface Slice:

One workaround involves creating an empty interface slice and assigning values from the original string slice iteratively. While this technique resolves the compilation issue, it requires a linear time copy with significant overhead.

Avoidance of Linear Time Copy:

To eliminate the hidden cost and improve efficiency, consider passing a range containing the slice's index and value to the Exec method. This allows for direct argument conversion without the need for a copy.

Generic Solution Using Reflection:

Utilizing reflection, a more generic solution can be implemented. This involves reflecting on the original slice using reflect.ValueOf(values) and accessing each element through valuesVal.Index(i).Interface(). While reflection incurs a runtime overhead, it provides flexibility for converting various types of slices to empty interface slices.

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