46 lines
854 B
Go
Vendored
46 lines
854 B
Go
Vendored
package vfsgen
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import "io"
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// commentWriter writes a Go comment to the underlying io.Writer,
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// using line comment form (//).
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type commentWriter struct {
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W io.Writer
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wroteSlashes bool // Wrote "//" at the beginning of the current line.
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}
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func (c *commentWriter) Write(p []byte) (int, error) {
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var n int
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for i, b := range p {
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if !c.wroteSlashes {
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s := "//"
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if b != '\n' {
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s = "// "
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}
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if _, err := io.WriteString(c.W, s); err != nil {
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return n, err
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}
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c.wroteSlashes = true
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}
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n0, err := c.W.Write(p[i : i+1])
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n += n0
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if err != nil {
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return n, err
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}
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if b == '\n' {
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c.wroteSlashes = false
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}
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}
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return len(p), nil
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}
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func (c *commentWriter) Close() error {
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if !c.wroteSlashes {
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if _, err := io.WriteString(c.W, "//"); err != nil {
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return err
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}
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c.wroteSlashes = true
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}
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return nil
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}
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