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go/token: delete unused File.set field
This field is only used for a sanity check in a test. Change-Id: I868ed10131ec33994ebb1b1d88f6740956824bd7 Reviewed-on: https://go-review.googlesource.com/c/go/+/409834 Run-TryBot: Robert Findley <rfindley@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Robert Findley <rfindley@google.com> Reviewed-by: Robert Griesemer <gri@google.com>
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@ -92,7 +92,6 @@ func (p Pos) IsValid() bool {
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// A File is a handle for a file belonging to a FileSet.
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// A File has a name, size, and line offset table.
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type File struct {
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set *FileSet
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name string // file name as provided to AddFile
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base int // Pos value range for this file is [base...base+size]
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size int // file size as provided to AddFile
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@ -418,7 +417,7 @@ func (s *FileSet) AddFile(filename string, base, size int) *File {
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panic(fmt.Sprintf("invalid size %d (should be >= 0)", size))
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}
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// base >= s.base && size >= 0
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f := &File{set: s, name: filename, base: base, size: size, lines: []int{0}}
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f := &File{name: filename, base: base, size: size, lines: []int{0}}
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base += size + 1 // +1 because EOF also has a position
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if base < 0 {
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panic("token.Pos offset overflow (> 2G of source code in file set)")
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@ -31,7 +31,6 @@ func (s *FileSet) Read(decode func(any) error) error {
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for i := 0; i < len(ss.Files); i++ {
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f := &ss.Files[i]
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files[i] = &File{
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set: s,
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name: f.Name,
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base: f.Base,
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size: f.Size,
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@ -35,12 +35,6 @@ func equal(p, q *FileSet) error {
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for i, f := range p.files {
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g := q.files[i]
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if f.set != p {
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return fmt.Errorf("wrong fileset for %q", f.name)
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}
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if g.set != q {
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return fmt.Errorf("wrong fileset for %q", g.name)
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}
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if f.name != g.name {
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return fmt.Errorf("different filenames: %q != %q", f.name, g.name)
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}
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