use go/parser.SkipObjectResolution

mvdan · mvdan · commit 2a5d4bc3b082 · 2022-06-10T16:10:16.000+01:00
We don't use go/ast.Objects. Avoiding this work saves a bit of CPU and memory allocs. See golang/go#52463.
diff --git a/format/format.go b/format/format.go
@@ -68,7 +68,7 @@ func Source(src []byte, opts Options) ([]byte, error) {
 	// to ensure that using token.NoPos+1 will panic.
 	fset.AddFile("gofumpt_base.go", 1, 10)
 
-	file, err := parser.ParseFile(fset, "", src, parser.ParseComments)
+	file, err := parser.ParseFile(fset, "", src, parser.SkipObjectResolution|parser.ParseComments)
 	if err != nil {
 		return nil, err
 	}

Original file line number	Diff line number	Diff line change
`@@ -68,7 +68,7 @@ func Source(src []byte, opts Options) ([]byte, error) {`
`68`	`68`	`// to ensure that using token.NoPos+1 will panic.`
`69`	`69`	`fset.AddFile("gofumpt_base.go", 1, 10)`
`70`	`70`
`71`		`- file, err := parser.ParseFile(fset, "", src, parser.ParseComments)`
	`71`	`+ file, err := parser.ParseFile(fset, "", src, parser.SkipObjectResolution\|parser.ParseComments)`
`72`	`72`	`if err != nil {`
`73`	`73`	`return nil, err`
`74`	`74`	`}`