Use format.Node() instead printer.Fprint()

printer.Fprint() does strange formatting (indention) whereas format.Node() formats according to gofmt
AntonStoeckl · Feb 28, 2020 · d2d8eab · d2d8eab
1 parent 219c9a9
commit d2d8eab
Show file tree

Hide file tree

Showing 5 changed files with 13 additions and 13 deletions.
diff --git a/cmd/go-mutesting/main.go b/cmd/go-mutesting/main.go
@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"go/ast"
 	"go/format"
-	"go/printer"
 	"go/token"
 	"go/types"
 	"io"
@@ -505,7 +504,7 @@ func saveAST(mutationBlackList map[string]struct{}, file string, fset *token.Fil
 
 	h := md5.New()
 
-	err := printer.Fprint(io.MultiWriter(h, &buf), fset, node)
+	err := format.Node(io.MultiWriter(h, &buf), fset, node)
 	if err != nil {
 		return "", false, err
 	}

diff --git a/test/mutator.go b/test/mutator.go
@@ -3,7 +3,7 @@ package test
 import (
 	"bytes"
 	"fmt"
-	"go/printer"
+	"go/format"
 	"io/ioutil"
 	"testing"
 
@@ -40,7 +40,8 @@ func Mutator(t *testing.T, m mutator.Mutator, testFile string, count int) {
 		assert.True(t, <-changed)
 
 		buf := new(bytes.Buffer)
-		err = printer.Fprint(buf, fset, src)
+		err = format.Node(buf, fset, src)
+
 		assert.Nil(t, err)
 
 		changedFilename := fmt.Sprintf("%s.%d.go", testFile, i)
@@ -57,7 +58,7 @@ func Mutator(t *testing.T, m mutator.Mutator, testFile string, count int) {
 		assert.True(t, <-changed)
 
 		buf = new(bytes.Buffer)
-		err = printer.Fprint(buf, fset, src)
+		err = format.Node(buf, fset, src)
 		assert.Nil(t, err)
 
 		assert.Equal(t, string(data), buf.String())

diff --git a/testdata/structinit/remove.go b/testdata/structinit/remove.go
@@ -3,14 +3,14 @@
 package example
 
 type Some struct {
-	a	string
-	B	int
+	a string
+	B int
 }
 
 func removeFieldsFromStructInit() Some {
 	some := Some{
-		a:	"a value",
-		B:	5,
+		a: "a value",
+		B: 5,
 	}
 
 	return some

diff --git a/testdata/structinit/remove.go.0.go b/testdata/structinit/remove.go.0.go
@@ -3,8 +3,8 @@
 package example
 
 type Some struct {
-	a	string
-	B	int
+	a string
+	B int
 }
 
 func removeFieldsFromStructInit() Some {

diff --git a/testdata/structinit/remove.go.1.go b/testdata/structinit/remove.go.1.go
@@ -3,8 +3,8 @@
 package example
 
 type Some struct {
-	a	string
-	B	int
+	a string
+	B int
 }
 
 func removeFieldsFromStructInit() Some {