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fs: add IsSet convenience method to Bits

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This commit is contained in:
Nick Craig-Wood 2023-10-03 17:38:13 +01:00
parent 7434ad8618
commit 12db7b6935
2 changed files with 14 additions and 0 deletions
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5
fs/bits.go
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@ -114,6 +114,11 @@ func (b *Bits[C]) Set(s string) error {
return nil return nil
} }
// IsSet returns true all the bits in mask are set in b.
func (b Bits[C]) IsSet(mask Bits[C]) bool {
return (b & mask) == mask
}
// Type of the value. // Type of the value.
// //
// If C has a Type() string method then it will be used instead. // If C has a Type() string method then it will be used instead.

9
fs/bits_test.go
View file

@ -80,6 +80,15 @@ func TestBitsSet(t *testing.T) {
} }
} }
func TestBitsIsSet(t *testing.T) {
b := bitA | bitB
assert.True(t, b.IsSet(bitA))
assert.True(t, b.IsSet(bitB))
assert.True(t, b.IsSet(bitA|bitB))
assert.False(t, b.IsSet(bitC))
assert.False(t, b.IsSet(bitA|bitC))
}
func TestBitsType(t *testing.T) { func TestBitsType(t *testing.T) {
f := bits(0) f := bits(0)
assert.Equal(t, "Bits", f.Type()) assert.Equal(t, "Bits", f.Type())