.gitignore added

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / xerrors@v0.0.0-20200804184101-5ec99f83aff1 / stack_test.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/xerrors@v0.0.0-20200804184101-5ec99f83aff1/stack_test.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/xerrors@v0.0.0-20200804184101-5ec99f83aff1/stack_test.go
new file mode 100644 (file)
index 0000000..e13f319
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/xerrors@v0.0.0-20200804184101-5ec99f83aff1/stack_test.go
@@ -0,0 +1,60 @@
+// Copyright 2018 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 xerrors_test
+
+import (
+       "bytes"
+       "fmt"
+       "math/big"
+       "testing"
+
+       "golang.org/x/xerrors"
+       "golang.org/x/xerrors/internal"
+)
+
+type myType struct{}
+
+func (myType) Format(s fmt.State, v rune) {
+       s.Write(bytes.Repeat([]byte("Hi! "), 10))
+}
+
+func BenchmarkErrorf(b *testing.B) {
+       err := xerrors.New("foo")
+       // pi := big.NewFloat(3.14) // Something expensive.
+       num := big.NewInt(5)
+       args := func(a ...interface{}) []interface{} { return a }
+       benchCases := []struct {
+               name   string
+               format string
+               args   []interface{}
+       }{
+               {"no_format", "msg: %v", args(err)},
+               {"with_format", "failed %d times: %v", args(5, err)},
+               {"method: mytype", "pi: %v", args("myfile.go", myType{}, err)},
+               {"method: number", "pi: %v", args("myfile.go", num, err)},
+       }
+       for _, bc := range benchCases {
+               b.Run(bc.name, func(b *testing.B) {
+                       b.Run("ExpWithTrace", func(b *testing.B) {
+                               for i := 0; i < b.N; i++ {
+                                       xerrors.Errorf(bc.format, bc.args...)
+                               }
+                       })
+                       b.Run("ExpNoTrace", func(b *testing.B) {
+                               internal.EnableTrace = false
+                               defer func() { internal.EnableTrace = true }()
+
+                               for i := 0; i < b.N; i++ {
+                                       xerrors.Errorf(bc.format, bc.args...)
+                               }
+                       })
+                       b.Run("Core", func(b *testing.B) {
+                               for i := 0; i < b.N; i++ {
+                                       fmt.Errorf(bc.format, bc.args...)
+                               }
+                       })
+               })
+       }
+}