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highlight: Avoid making unnecessary allocation
Avoid creating a local copy of the highlight configuration when no options are passed. Benchmarks of building the docs site: name old time/op new time/op delta DocsSite-2 1.94s ± 4% 1.93s ± 4% ~ (p=0.841 n=5+5) name old alloc/op new alloc/op delta DocsSite-2 666MB ± 1% 656MB ± 0% -1.48% (p=0.008 n=5+5) name old allocs/op new allocs/op delta DocsSite-2 8.85M ± 0% 8.76M ± 0% -1.04% (p=0.029 n=4+4)
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837e084bbe
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1 changed files with 8 additions and 5 deletions
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@ -37,12 +37,15 @@ type Highlighter struct {
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}
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func (h Highlighter) Highlight(code, lang, optsStr string) (string, error) {
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cfg := h.cfg
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if optsStr != "" {
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if err := applyOptionsFromString(optsStr, &cfg); err != nil {
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return "", err
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}
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if optsStr == "" {
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return highlight(code, lang, h.cfg)
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}
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cfg := h.cfg
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if err := applyOptionsFromString(optsStr, &cfg); err != nil {
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return "", err
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}
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return highlight(code, lang, cfg)
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}
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