29 lines
525 B
Go
29 lines
525 B
Go
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package src
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import "strconv"
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// Position represents a position in a source file.
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type Position struct {
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Filename string
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Line int // 1-up
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}
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// IsValid reports whether the position is valid: Line must be positive, but
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// Filename may be empty.
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func (p Position) IsValid() bool {
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return p.Line > 0
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}
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// String represents Position as a string.
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func (p Position) String() string {
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if !p.IsValid() {
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return "-"
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}
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var s string
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if p.Filename != "" {
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s += p.Filename + ":"
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}
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s += strconv.Itoa(p.Line)
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return s
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}
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