# Structural type and function insertions reject duplicates and unsupported overwrites without changing source.
! exec semedit insert-construct --file api/model.go --kind type --source 'type Config struct { Port int }'
stderr 'Config.*already exists'
! exec semedit insert-construct --file api/model.go --kind type --overwrite --source 'type Config struct { Port int }'
stderr 'unknown flag.*overwrite'
! exec semedit insert-construct --file api/model.go --kind function --source 'func Load() string { return "new" }'
stderr 'Load.*already exists'
! exec semedit insert-construct --file api/model.go --kind method --source 'func (w *Widget) Name() string { return "new" }'
stderr 'method Widget.Name already exists'
grep 'Keep the existing documentation' api/model.go
grep 'type Config struct' api/model.go
grep 'Widget' api/model.go
grep 'Keep this function documentation' api/model.go
grep 'func Load\(\) string' api/model.go
grep 'Other' api/model.go

-- go.mod --
module example.com/structurecollision

go 1.23

-- api/model.go --
package api

// Keep the existing documentation.
type Config struct { Host string }

type Widget struct{}

func (Widget) Name() string { return "old" }

// Keep this function documentation.
func Load() string { return "old" }

type Other struct{}