Unfolds All Code on Save

Issue Type: Bug

Not sure why this has happened however out of the blue Visual Studio Code is now unfolding all code every time the file is saved. I have tried uninstalling/reinstalling and removing extensions though nothing has worked.

All code is unfolded every single time the file is saved and results in a lot of lost time.

VS Code version: Code 1.48.2 (a047975, 2020-08-25T10:13:11.295Z)
OS version: Windows_NT x64 10.0.19041

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz (12 x 3696)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_renderer: disabled_off_ok video_decode: enabled viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off_ok webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	15.86GB (10.46GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions (3)

Extension	Author (truncated)	Version
fold-unfold-all-icone	Fer	0.0.2
go	gol	0.16.2
mark-jump	spy	0.9.0

[aeschli]

For what language is that? Can you add a small code sample? Do you have format on save enabled?

Hi the language is GO/GOLANG, it was working perfectly for months and then it started happening. Eventually I did a clean install of Windows 10 and it was fixed. However it is now happening again for some unknown reason.

I don't change anything, install any new extensions or anything similar and out of the blue it just unfolds all on save. I do not have FORMAT ON SAVE enabled.

some code is below (apologies cannot get the code to format correctly for some reason starts at func drawcredits()

`
func drawcredits() { // MARK: drawcredits
altcloudson = true
rl.DrawRectangle(0, 0, monw, monh, rl.Black)
rl.DrawRectangle(0, 0, monw, monh, rl.Fade(creditscolor, creditsfade))
if framecount%3 == 0 {
for a := 0; a < 20; a++ {
rl.DrawPixel(rInt(50, monw-50), rInt(50, monh-50), rl.Black)
rl.DrawRectangle(rInt(50, monw-50), rInt(50, monh-50), 2, 2, rl.Black)
}
}

if creditsfadeon {
	creditsfade -= 0.04
	if creditsfade <= 0.0 {
		randomcolors()
		creditscolor = randomcolorslice[0]
		creditsfadeon = false
	}
} else {
	creditsfade += 0.04
	if creditsfade >= 1.0 {
		randomcolors()
		creditscolor = randomcolorslice[0]
		creditsfadeon = true
	}
}

rl.DrawText("these links all helped make this game possible:", 100, 150, 40, rl.White)

rl.DrawText("raylib.com", 150, 250, 40, rl.White)
rl.DrawText("golang.org", 150, 300, 40, rl.White)
rl.DrawText("opengameart.org", 150, 350, 40, rl.White)
rl.DrawText("itch.io", 150, 400, 40, rl.White)
rl.DrawText("kenney.nl", 150, 450, 40, rl.White)
rl.DrawText("planets - opengameart.org/content/20-planet-sprites", 150, 500, 40, rl.White)

}
`

[aeschli]

I can reproduce.

From debugging I see that the go extension now also registers a folding range provider.
However that provider doesn't work well with incomplete code. It then returns no folding ranges, what results in all folded ranges to go way.
E.g. no ranges returned for that code:

package main
w
import (
	"fmt"
	"io"
	"net/http"

	"github.com/microsoft/vscode-remote-try-go/hello"
)

func handle(w http.ResponseWriter, r *http.Request) {
	io.WriteString(w, hello.Hello())
}

Can you file the issue against the go extension? https://github.com/golang/vscode-go
Thanks a lot!