From e091ba519303229337e51404928cbf42df36f352 Mon Sep 17 00:00:00 2001
From: Oleg Ozimok <ozimok.oleg@gmail.com>
Date: Wed, 26 Sep 2018 16:34:18 +0300
Subject: [PATCH] optimize parse date performance
---
caste.go | 50 ++++++++++++++++++++++++++------------------------
1 file changed, 26 insertions(+), 24 deletions(-)
diff --git a/caste.go b/caste.go
index 22ff907..f72a309 100644
--- a/caste.go
+++ b/caste.go
@@ -18,6 +18,31 @@ import (
var TimeLocation = time.UTC
+var ParseDateFormats = []string{
+ time.RFC3339,
+ "2006-01-02T15:04:05", // iso8601 without timezone
+ time.RFC1123Z,
+ time.RFC1123,
+ time.RFC822Z,
+ time.RFC822,
+ time.RFC850,
+ time.ANSIC,
+ time.UnixDate,
+ time.RubyDate,
+ "2006-01-02 15:04:05.999999999 -0700 MST", // Time.String()
+ "2006-01-02",
+ "02 Jan 2006",
+ "2006-01-02 15:04:05 -07:00",
+ "2006-01-02 15:04:05 -0700",
+ "2006-01-02 15:04:05Z07:00", // RFC3339 without T
+ "2006-01-02 15:04:05",
+ time.Kitchen,
+ time.Stamp,
+ time.StampMilli,
+ time.StampMicro,
+ time.StampNano,
+}
+
var errNegativeNotAllowed = errors.New("unable to cast negative value")
// ToTimeE casts an interface to a time.Time type.
@@ -1127,30 +1152,7 @@ func ToDurationSliceE(i interface{}) ([]time.Duration, error) {
// predefined list of formats. If no suitable format is found, an error is
// returned.
func StringToDate(s string) (time.Time, error) {
- return parseDateWith(s, []string{
- time.RFC3339,
- "2006-01-02T15:04:05", // iso8601 without timezone
- time.RFC1123Z,
- time.RFC1123,
- time.RFC822Z,
- time.RFC822,
- time.RFC850,
- time.ANSIC,
- time.UnixDate,
- time.RubyDate,
- "2006-01-02 15:04:05.999999999 -0700 MST", // Time.String()
- "2006-01-02",
- "02 Jan 2006",
- "2006-01-02 15:04:05 -07:00",
- "2006-01-02 15:04:05 -0700",
- "2006-01-02 15:04:05Z07:00", // RFC3339 without T
- "2006-01-02 15:04:05",
- time.Kitchen,
- time.Stamp,
- time.StampMilli,
- time.StampMicro,
- time.StampNano,
- })
+ return parseDateWith(s, ParseDateFormats)
}
func parseDateWith(s string, dates []string) (d time.Time, e error) {