gotosocial/vendor/github.com/ncruces/go-sqlite3/driver/time.go

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package driver
import (
"time"
)
// Convert a string in [time.RFC3339Nano] format into a [time.Time]
// if it roundtrips back to the same string.
// This way times can be persisted to, and recovered from, the database,
// but if a string is needed, [database/sql] will recover the same string.
func maybeTime(text string) (_ time.Time, _ bool) {
// Weed out (some) values that can't possibly be
// [time.RFC3339Nano] timestamps.
if len(text) < len("2006-01-02T15:04:05Z") {
return
}
if len(text) > len(time.RFC3339Nano) {
return
}
if text[4] != '-' || text[10] != 'T' || text[16] != ':' {
return
}
// Slow path.
var buf [len(time.RFC3339Nano)]byte
date, err := time.Parse(time.RFC3339Nano, text)
if err == nil && text == string(date.AppendFormat(buf[:0], time.RFC3339Nano)) {
return date, true
}
return
}