chore: improve titleCasedName performance #1691
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@ -103,27 +103,28 @@ func (mapper SnakeMapper) Obj2Table(name string) string {
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}
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func titleCasedName(name string) string {
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newstr := make([]rune, 0)
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newstr := make([]byte, 0, len(name))
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upNextChar := true
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name = strings.ToLower(name)
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for _, chr := range name {
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for i := 0; i < len(name); i++ {
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c := name[i]
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switch {
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case upNextChar:
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upNextChar = false
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if 'a' <= chr && chr <= 'z' {
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chr -= ('a' - 'A')
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if 'a' <= c && c <= 'z' {
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c += 'a' - 'A'
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}
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case chr == '_':
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case c == '_':
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upNextChar = true
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continue
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}
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newstr = append(newstr, chr)
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newstr = append(newstr, c)
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}
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return string(newstr)
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return b2s(newstr)
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}
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func (mapper SnakeMapper) Table2Obj(name string) string {
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@ -58,3 +58,13 @@ func BenchmarkSnakeCasedName(b *testing.B) {
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_ = snakeCasedName(s)
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}
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}
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func BenchmarkTitleCasedName(b *testing.B) {
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b.ReportAllocs()
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b.ResetTimer()
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s := strings.Repeat("foo_bar", 32)
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for i := 0; i < b.N; i++ {
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_ = titleCasedName(s)
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}
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}
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Reference in New Issue
Block a user
I will change to
c -= 'a' - 'A'