package go/token
A FileSet represents a set of source files. Methods of file sets are synchronized; multiple goroutines may invoke them concurrently.
Golang go/token.FileSet type usage examples
Example 1:
func loc(fset *token.FileSet, pos token.Pos) string {
if pos == token.NoPos {
return ""
}
return " at " + fset.Position(pos).String()
}
Example 2:
type SourceMapFilter struct {
Writer io.Writer
MappingCallback func(generatedLine, generatedColumn int, fileSet *token.FileSet, originalPos token.Pos)
line int
column int
fileSet *token.FileSet
}
References :
https://github.com/gopherjs/gopherjs/blob/master/compiler/compiler.go
http://golang.org/pkg/go/token/#FileSet
