94 lines
2.4 KiB
Smarty
94 lines
2.4 KiB
Smarty
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package bitutil
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import (
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"strings"
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"codeberg.org/gruf/go-bytes"
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)
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{{ range $idx, $size := . }}
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// Flags{{ $size.Size }} is a type-casted unsigned integer with helper
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// methods for easily managing up to {{ $size.Size }} bit flags.
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type Flags{{ $size.Size }} uint{{ $size.Size }}
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// Get will fetch the flag bit value at index 'bit'.
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func (f Flags{{ $size.Size }}) Get(bit uint8) bool {
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mask := Flags{{ $size.Size }}(1) << bit
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return (f & mask != 0)
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}
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// Set will set the flag bit value at index 'bit'.
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func (f Flags{{ $size.Size }}) Set(bit uint8) Flags{{ $size.Size }} {
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mask := Flags{{ $size.Size }}(1) << bit
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return f | mask
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}
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// Unset will unset the flag bit value at index 'bit'.
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func (f Flags{{ $size.Size }}) Unset(bit uint8) Flags{{ $size.Size }} {
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mask := Flags{{ $size.Size }}(1) << bit
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return f & ^mask
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}
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{{ range $idx := $size.Bits }}
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// Get{{ $idx }} will fetch the flag bit value at index {{ $idx }}.
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func (f Flags{{ $size.Size }}) Get{{ $idx }}() bool {
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const mask = Flags{{ $size.Size }}(1) << {{ $idx }}
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return (f & mask != 0)
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}
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// Set{{ $idx }} will set the flag bit value at index {{ $idx }}.
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func (f Flags{{ $size.Size }}) Set{{ $idx }}() Flags{{ $size.Size }} {
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const mask = Flags{{ $size.Size }}(1) << {{ $idx }}
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return f | mask
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}
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// Unset{{ $idx }} will unset the flag bit value at index {{ $idx }}.
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func (f Flags{{ $size.Size }}) Unset{{ $idx }}() Flags{{ $size.Size }} {
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const mask = Flags{{ $size.Size }}(1) << {{ $idx }}
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return f & ^mask
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}
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{{ end }}
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// String returns a human readable representation of Flags{{ $size.Size }}.
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func (f Flags{{ $size.Size }}) String() string {
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var val bool
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var buf bytes.Buffer
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buf.WriteByte('{')
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{{ range $idx := .Bits }}
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val = f.Get{{ $idx }}()
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buf.WriteString(bool2str(val) + " ")
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{{ end }}
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buf.Truncate(1)
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buf.WriteByte('}')
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return buf.String()
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}
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// GoString returns a more verbose human readable representation of Flags{{ $size.Size }}.
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func (f Flags{{ $size.Size }})GoString() string {
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var val bool
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var buf bytes.Buffer
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buf.WriteString("bitutil.Flags{{ $size.Size }}{")
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{{ range $idx := .Bits }}
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val = f.Get{{ $idx }}()
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buf.WriteString("{{ $idx }}="+bool2str(val)+" ")
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{{ end }}
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buf.Truncate(1)
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buf.WriteByte('}')
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return buf.String()
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}
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{{ end }}
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func bool2str(b bool) string {
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if b {
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return "true"
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}
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return "false"
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}
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