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time: panic in initLocal on js/wasm #28649

FiloSottile opened this issue Nov 8, 2018 · 3 comments

time: panic in initLocal on js/wasm #28649

FiloSottile opened this issue Nov 8, 2018 · 3 comments


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@FiloSottile FiloSottile commented Nov 8, 2018

This very simple program panics when executed with misc/wasm/go_js_wasm_exec.

package main

import (

func main() {
panic: runtime error: slice bounds out of range

goroutine 1 [running]:
	/Users/valsorda/go/src/time/zoneinfo_js.go:39 +0x3b
sync.(*Once).Do(0x15a3c0, 0x39a18)
	/Users/valsorda/go/src/sync/once.go:44 +0xf
time.(*Location).get(0x141120, 0x8)
	/Users/valsorda/go/src/time/zoneinfo.go:79 +0x5
time.Time.abs(0xbef100f060a9d100, 0x112701, 0x141120, 0x5)
	/Users/valsorda/go/src/time/time.go:455 +0x4, 0x112701, 0x141120, 0x16a50001, 0xc056000, 0x32e59, 0x5, 0x100000076)
	/Users/valsorda/go/src/time/time.go:964 +0x2
time.Time.Date(0xbef100f060a9d100, 0x112701, 0x141120, 0x0, 0xc04c000, 0xc000180)
	/Users/valsorda/go/src/time/time.go:495 +0x2
log.(*Logger).formatHeader(0xc04a000, 0xc04a030, 0xbef100f060a9d100, 0x112701, 0x141120, 0x0, 0x0, 0x0)
	/Users/valsorda/go/src/log/log.go:103 +0x5b
log.(*Logger).Output(0xc04a000, 0x2, 0xc0140c8, 0x5, 0x0, 0x0)
	/Users/valsorda/go/src/log/log.go:167 +0x9
log.Print(0xc030788, 0x1, 0x1)
	/Users/valsorda/go/src/log/log.go:296 +0x3
	/Users/valsorda/go/src/jspanic.go:8 +0x2
exit status 2
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@FiloSottile FiloSottile commented Nov 8, 2018

/cc @neelance

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@agnivade agnivade commented Nov 8, 2018

My bad, I did not think of negative offsets. Sigh .. Sending a fix.

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@gopherbot gopherbot commented Nov 8, 2018

Change mentions this issue: time: handle negative offsets on js/wasm

@gopherbot gopherbot closed this in 5e9ad4a Nov 8, 2018
@golang golang locked and limited conversation to collaborators Nov 8, 2019
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