28 lines
687 B
Go
28 lines
687 B
Go
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package cardsim
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import "fmt"
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// Message is an opaque interface representing a displayable message.
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// Using an interface here allows for implementation of new message display
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// and formatting features without rewriting all existing callers.
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type Message interface {
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fmt.Stringer
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}
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type stringMessage string
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func (s stringMessage) String() string {
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return string(s)
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}
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// MsgStr returns a Message representing a fixed string.
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func MsgStr(s string) Message {
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return stringMessage(s)
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}
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// Msgf is a Sprintf-like function that produces a Message equivalent to the
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// one created by MsgStr.
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func Msgf(f string, args ...any) Message {
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return stringMessage(fmt.Sprintf(f, args...))
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}
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