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73 lines
2.0 KiB
73 lines
2.0 KiB
4 months ago
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package tools
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import (
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"bytes"
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"fmt"
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"io"
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)
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// LazyBuffer is a [bytes.Buffer] that minimizes counting and error checks.
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type LazyBuffer bytes.Buffer
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// Sys returns the underlying [bytes.Buffer].
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func (buf *LazyBuffer) Sys() *bytes.Buffer {
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if buf == nil {
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return nil
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}
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return (*bytes.Buffer)(buf)
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}
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// Len tells the size in bytes of the currently stored data.
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func (buf *LazyBuffer) Len() int { return buf.Sys().Len() }
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// String returns the stored data as string.
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func (buf *LazyBuffer) String() string { return buf.Sys().String() }
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// Bytes returns the stored data as a bytes slice.
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func (buf *LazyBuffer) Bytes() []byte { return buf.Sys().Bytes() }
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// Write implements the standard io.Writer interface.
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func (buf *LazyBuffer) Write(b []byte) (int, error) { return buf.Sys().Write(b) }
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// WriteTo implements the standard WriteTo() interface.
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func (buf *LazyBuffer) WriteTo(out io.Writer) (int64, error) { return buf.Sys().WriteTo(out) }
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// Print appends the [fmt.Print] equivalent to the buffer.
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func (buf *LazyBuffer) Print(a ...any) error {
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_, err := fmt.Fprint(buf.Sys(), a...)
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return err
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}
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// Println appends the [fmt.Println] equivalent to the buffer.
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func (buf *LazyBuffer) Println(a ...any) error {
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_, err := fmt.Fprintln(buf.Sys(), a...)
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return err
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}
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// Printf appends the [fmt.Printf] equivalent to the buffer.
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func (buf *LazyBuffer) Printf(format string, a ...any) error {
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_, err := fmt.Fprintf(buf.Sys(), format, a...)
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return err
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}
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// WriteRunes appends the given runes as UTF-8 characters to the buffer.
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func (buf *LazyBuffer) WriteRunes(runes ...rune) {
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for _, r := range runes {
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_, _ = buf.Sys().WriteRune(r)
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}
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}
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// WriteBytes writes the given byte arrays to the buffer.
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func (buf *LazyBuffer) WriteBytes(s ...[]byte) {
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for _, b := range s {
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_, _ = buf.Sys().Write(b)
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}
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}
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// WriteStrings writes the given strings as UTF-8 to the buffer.
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func (buf *LazyBuffer) WriteStrings(strings ...string) {
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for _, s := range strings {
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_, _ = buf.Sys().WriteString(s)
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}
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}
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