50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package repository
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// Enumeration returns a Go enumeration.
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type Enumeration struct {
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Comment Comment
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Name string
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Values []EnumValue
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// Bitwise is true if the enumeration is a bitwise one. The type would then
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// be uint32 instead of uint8, allowing for 32 constants. As usual, the
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// first value of enum must be 0.
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Bitwise bool
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}
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// GoType returns uint8 for a normal enum and uint32 for a bitwise enum. It
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// returns an empty string if the length of values is overbound.
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//
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// The maximum number of values in a normal enum is math.MaxUint8 or 255. The
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// maximum number of values in a bitwise enum is 32 for 32 bits in a uint32.
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func (e Enumeration) GoType() string {
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if !e.Bitwise {
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if len(e.Values) > 255 {
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return ""
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}
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return "uint8"
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}
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if len(e.Values) > 32 {
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return ""
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}
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return "uint32"
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}
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type EnumValue struct {
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Comment Comment
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Name string // also return value from String()
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}
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// IsPlaceholder returns true if the enumeration value is meant to be a
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// placeholder. In Go, it would look like this:
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//
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// const (
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// _ EnumType = iota // IsPlaceholder() == true
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// V1
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// )
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//
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func (v EnumValue) IsPlaceholder() bool {
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return v.Name == ""
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}
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