go parser_test 源码
golang parser_test 代码
文件路径：/test/bench/go1/parser_test.go
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package go1
// go parser benchmark based on go/parser/performance_test.go
import (
"compress/bzip2"
"encoding/base64"
"go/parser"
"go/token"
"io"
"strings"
"testing"
)
var (
parserbytes = makeParserBytes()
)
func makeParserBytes() []byte {
var r io.Reader
r = strings.NewReader(parserbz2_base64)
r = base64.NewDecoder(base64.StdEncoding, r)
r = bzip2.NewReader(r)
b, err := io.ReadAll(r)
if err != nil {
panic(err)
}
return b
}
func BenchmarkGoParse(b *testing.B) {
b.SetBytes(int64(len(parserbytes)))
for i := 0; i < b.N; i++ {
if _, err := parser.ParseFile(token.NewFileSet(), "", parserbytes, parser.ParseComments); err != nil {
b.Fatalf("benchmark failed due to parse error: %s", err)
}
}
}
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