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17 August 2022
Struct & Syntax Error
Thorough use of struct and avoid syntax compilation errors.
If you go further into the structures and need to to embed structs with special characters like [, {, etc.
Like this:
package main
type E1 struct {
[]int
}
type E2 struct {
map[string]string
}
type E3 struct {
interface{}
}
Go playground: https://go.dev/play/p/g2Jt6Nu9xI1.
You will get compilation errors:
$ go build .
# test
./main.go:4:2: syntax error: unexpected [, expecting field name or embedded type
./main.go:8:2: syntax error: unexpected map, expecting field name or embedded type
./main.go:12:2: syntax error: unexpected interface, expecting field name or embedded type
./main.go:13:1: syntax error: non-declaration statement outside function body
To solve this problem, you need to embed it in a type, and then inherit that type in your struct.
Like the following:
type E1Sub []int
type E1 struct {
E1Sub
}
type E2Sub []int
type E2 struct {
E2Sub
}
type E3Sub []int
type E3 struct {
E3Sub
}
Go playground: https://go.dev/play/p/xF3ownQt3N7.