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@ -31,7 +31,7 @@ func errorf(format string, args ...interface{}) { |
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exitCode = 2 |
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} |
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type Package struct { |
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type goPackage struct { |
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p *ast.Package |
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fs *token.FileSet |
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decl map[string]ast.Node |
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@ -39,7 +39,7 @@ type Package struct { |
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used map[string]bool |
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} |
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type usedWalker Package |
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type usedWalker goPackage |
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// Walks through the AST marking used identifiers.
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func (p *usedWalker) Visit(node ast.Node) ast.Visitor { |
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@ -51,23 +51,23 @@ func (p *usedWalker) Visit(node ast.Node) ast.Visitor { |
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return p |
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} |
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type Report struct { |
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type report struct { |
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pos token.Pos |
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name string |
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} |
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type Reports []Report |
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type reports []report |
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// Len
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func (l Reports) Len() int { return len(l) } |
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func (l reports) Len() int { return len(l) } |
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// Less
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func (l Reports) Less(i, j int) bool { return l[i].pos < l[j].pos } |
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func (l reports) Less(i, j int) bool { return l[i].pos < l[j].pos } |
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// Swap
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func (l Reports) Swap(i, j int) { l[i], l[j] = l[j], l[i] } |
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func (l reports) Swap(i, j int) { l[i], l[j] = l[j], l[i] } |
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// Visits files for used nodes.
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func (p *Package) Visit(node ast.Node) ast.Visitor { |
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func (p *goPackage) Visit(node ast.Node) ast.Visitor { |
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u := usedWalker(*p) // hopefully p fields are references.
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switch n := node.(type) { |
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// don't walk whole file, but only:
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@ -129,7 +129,7 @@ func doDir(name string) { |
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} |
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func doPackage(fs *token.FileSet, pkg *ast.Package) { |
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p := &Package{ |
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p := &goPackage{ |
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p: pkg, |
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fs: fs, |
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decl: make(map[string]ast.Node), |
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@ -200,10 +200,10 @@ func doPackage(fs *token.FileSet, pkg *ast.Package) { |
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} |
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// reports.
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reports := Reports(nil) |
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reports := reports(nil) |
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for name, node := range p.decl { |
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if !p.used[name] { |
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reports = append(reports, Report{node.Pos(), name}) |
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reports = append(reports, report{node.Pos(), name}) |
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} |
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} |
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sort.Sort(reports) |
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