Understanding Go Struct Embedding: Benefits and Potential Pitfalls
By
mattjhall
Tired, dry, slightly forgotten on the back of the tray.
Summary
This article discusses Go programming language's struct embedding feature, explaining how it allows type composition and field promotion but warns about potential pitfalls when embedded structs have conflicting field names. The example shows how embedded Position and Colour structs allow direct access to their fields, but hints at problems when multiple embedded structs share the same field names like 'URL'.
Key quotes
· 5 pulledGo has a feature called struct embedding that allows you to compose types
This works: fmt.Printf("%d,%d\n", r.Position.X, r.Position.Y)
but so does this: fmt.Printf("%d,%d\n", r.X, r.Y)
But what do you think this code does?
type BarService struct { BarConnectionOptions }
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