In addition to Joshua's suggestion, I would point to Composition. Something
like this:
// Anything with a GetComment implicitly implements this Interface
type AsmComment interface {
GetComment() string // presuming any line could have a comment
}
type AsmEntry interface {
GetEntry() string // renders the full line as it would be in the
file, maybe
}
type Comment struct {
Comment string
}
func (c *Comment) GetComment() string {
return c.Comment;
}
// Can labels have comments as well? This implementation says no, but it
does implement AsmEntry
type Label string
func (l Label) GetEntry() {
return l
}
type Instruction interface {
GetMnemonic() string
GetArgsLen() int
GetArg(int) string
}
// By including Comment without a name, it is 'embedded', composed into the
IntelInstruction struct, which means that IntelInstruction fulfills the
// AsmComment interface automatically
type IntelInstruction struct {
Comment
Mnemonic string
Args []string
}
...GetMnemonic...
...GetArgsLen...
etc
// The presence of this function fulfills the AsmEntry interface.
func (i IntelInstruction) GetEntry() string {
//Do stuff here
}
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