github.com/riscv/riscv-go@v0.0.0-20200123204226-124ebd6fcc8e/src/go/parser/performance_test.go (about)

     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 parser
     6  
     7  import (
     8  	"go/token"
     9  	"io/ioutil"
    10  	"testing"
    11  )
    12  
    13  func BenchmarkParse(b *testing.B) {
    14  	src, err := ioutil.ReadFile("parser.go")
    15  	if err != nil {
    16  		b.Fatal(err)
    17  	}
    18  	b.ResetTimer()
    19  	b.SetBytes(int64(len(src)))
    20  	for i := 0; i < b.N; i++ {
    21  		if _, err := ParseFile(token.NewFileSet(), "", src, ParseComments); err != nil {
    22  			b.Fatalf("benchmark failed due to parse error: %s", err)
    23  		}
    24  	}
    25  }