1 // Copyright 2012 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package go1 6 7 // go parser benchmark based on go/parser/performance_test.go 8 9 import ( 10 "compress/bzip2" 11 "encoding/base64" 12 "go/parser" 13 "go/token" 14 "io" 15 "io/ioutil" 16 "strings" 17 "testing" 18 ) 19 20 var ( 21 parserbytes = makeParserBytes() 22 ) 23 24 func makeParserBytes() []byte { 25 var r io.Reader 26 r = strings.NewReader(parserbz2_base64) 27 r = base64.NewDecoder(base64.StdEncoding, r) 28 r = bzip2.NewReader(r) 29 b, err := ioutil.ReadAll(r) 30 if err != nil { 31 panic(err) 32 } 33 return b 34 } 35 36 func BenchmarkGoParse(b *testing.B) { 37 b.SetBytes(int64(len(parserbytes))) 38 for i := 0; i < b.N; i++ { 39 if _, err := parser.ParseFile(token.NewFileSet(), "", parserbytes, parser.ParseComments); err != nil { 40 b.Fatalf("benchmark failed due to parse error: %s", err) 41 } 42 } 43 } 44
