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Bot: Added better middleware documentation

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diamondburned 2020-08-11 17:31:29 -07:00
parent 3db68bcb0e
commit d888a5a7ac
1 changed files with 15 additions and 1 deletions
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16
bot/subcommand.go
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@ -328,7 +328,21 @@ func (sub *Subcommand) parseCommands() error {
// AddMiddleware adds a middleware into multiple or all methods, including // AddMiddleware adds a middleware into multiple or all methods, including
// commands and events. Multiple method names can be comma-delimited. For all // commands and events. Multiple method names can be comma-delimited. For all
// methods, use a star (*). // methods, use a star (*). The given middleware argument can either be a
// function with one of the allowed methods or a *MiddlewareContext.
//
// Allowed function signatures
//
// Below are the acceptable function signatures that would be parsed as a proper
// middleware. A return value of type T will be ignored. If the given function
// is invalid, then this method will panic.
//
// func(<AnyEvent>) (T, error)
// func(<AnyEvent>) error
// func(<AnyEvent>)
//
// Note that although technically all of the above function signatures are
// acceptable, one should almost always return only an error.
func (sub *Subcommand) AddMiddleware(methodName string, middleware interface{}) { func (sub *Subcommand) AddMiddleware(methodName string, middleware interface{}) {
var mw *MiddlewareContext var mw *MiddlewareContext
// Allow *MiddlewareContext to be passed into. // Allow *MiddlewareContext to be passed into.