Adding upstream version 1.20.14.upstream/1.20.14upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 45 insertions, 0 deletions

diff --git a/src/time/zoneinfo_js.go b/src/time/zoneinfo_js.go
new file mode 100644
index 0000000..8da34a2
--- /dev/null
+++ b/src/time/zoneinfo_js.go
@@ -0,0 +1,45 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build js && wasm
+
+package time
+
+import (
+	"internal/itoa"
+	"syscall/js"
+)
+
+var platformZoneSources = []string{
+	"/usr/share/zoneinfo/",
+	"/usr/share/lib/zoneinfo/",
+	"/usr/lib/locale/TZ/",
+}
+
+func initLocal() {
+	localLoc.name = "Local"
+
+	z := zone{}
+	d := js.Global().Get("Date").New()
+	offset := d.Call("getTimezoneOffset").Int() * -1
+	z.offset = offset * 60
+	// According to https://tc39.github.io/ecma262/#sec-timezoneestring,
+	// the timezone name from (new Date()).toTimeString() is an implementation-dependent
+	// result, and in Google Chrome, it gives the fully expanded name rather than
+	// the abbreviation.
+	// Hence, we construct the name from the offset.
+	z.name = "UTC"
+	if offset < 0 {
+		z.name += "-"
+		offset *= -1
+	} else {
+		z.name += "+"
+	}
+	z.name += itoa.Itoa(offset / 60)
+	min := offset % 60
+	if min != 0 {
+		z.name += ":" + itoa.Itoa(min)
+	}
+	localLoc.zone = []zone{z}
+}