Delve shows difference between nil and zero-len/zero-cap slice, Go-extension does not

[cameronelliott]

Even though delve is showing the difference between nil slices, and zero-len/zero-cap slices, the VSCode interface to the debugger is not doing so, and I appear to have the recent 0.11.7 release.
I also only have a single dlv.exe on my system of ver 1.2.0

Delve showning nil vs zero-len/zero-cap slice

VScode Go extension not showing the difference

Test code:

package main


import "fmt"

func main() {
	var x []string
	y:=[]string{}
	fmt.Println(x,y)

}

[ramya-rao-a]

Thanks for reporting Cameron-elliott

Derek Parker (@derekparker), Alessandro Arzilli (@aarzilli),
What field in the Variable can the debug client look at to determine the above difference?

[aarzilli]

The Base field will be zero for nil slices.

[ramya-rao-a]

Thanks Alessandro Arzilli (@aarzilli)!

PRs are welcome to make this change

Code Pointers:

• Set up local dev environment
• Place to update the text that is shown in the variables pane: https://github.com/microsoft/vscode-go/blob/0.11.7/src/debugAdapter/goDebug.ts#L1266
• You will need to update the DebugVariable interface to include the "base" field so that you can check its value

[ramya-rao-a]

Please try the latest beta version of this extension has the fix for this

[ramya-rao-a]

The latest update to this extension (0.11.8) has the fix for this.

Thanks for reporting Cameron-elliott and Kaarthik Rao Bekal Radhakrishna (@karthikraobr) for the fix

Happy Coding!