mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-29 03:32:00 -05:00
7855b47f07
``` name old time/op new time/op delta Codeblocks/Default-10 152ms ±11% 12ms ± 1% -92.44% (p=0.029 n=4+4) Codeblocks/Hook_no_higlight-10 142ms ± 0% 7ms ± 0% -95.36% (p=0.029 n=4+4) name old alloc/op new alloc/op delta Codeblocks/Default-10 11.9MB ± 0% 11.7MB ± 0% -1.59% (p=0.029 n=4+4) Codeblocks/Hook_no_higlight-10 4.62MB ± 1% 4.43MB ± 0% -4.08% (p=0.029 n=4+4) name old allocs/op new allocs/op delta Codeblocks/Default-10 209k ± 0% 209k ± 0% -0.03% (p=0.029 n=4+4) Codeblocks/Hook_no_higlight-10 68.4k ± 0% 68.3k ± 0% -0.06% (p=0.029 n=4+4) ```
50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
// Copyright 2022 The Hugo Authors. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package chromalexers
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"github.com/alecthomas/chroma/v2"
|
|
"github.com/alecthomas/chroma/v2/lexers"
|
|
)
|
|
|
|
type lexersMap struct {
|
|
lexers map[string]chroma.Lexer
|
|
mu sync.RWMutex
|
|
}
|
|
|
|
var lexerCache = &lexersMap{lexers: make(map[string]chroma.Lexer)}
|
|
|
|
// Get returns a lexer for the given language name, nil if not found.
|
|
// This is just a wrapper around chromalexers.Get that caches the result.
|
|
// Reasoning for this is that chromalexers.Get is slow in the case where the lexer is not found,
|
|
// which is a common case in Hugo.
|
|
func Get(name string) chroma.Lexer {
|
|
lexerCache.mu.RLock()
|
|
lexer, found := lexerCache.lexers[name]
|
|
lexerCache.mu.RUnlock()
|
|
|
|
if found {
|
|
return lexer
|
|
}
|
|
|
|
lexer = lexers.Get(name)
|
|
|
|
lexerCache.mu.Lock()
|
|
lexerCache.lexers[name] = lexer
|
|
lexerCache.mu.Unlock()
|
|
|
|
return lexer
|
|
}
|