Function applyExecutionRules

core/router/handler_execution_rules.go:25–55

(rules ExecutionRules, begin, done, main *context.Handlers)

}

func applyExecutionRules(rules ExecutionRules, begin, done, main *context.Handlers) {
	if !rules.Begin.Force && !rules.Done.Force && !rules.Main.Force {
		return // do not proceed and spend build-time here if nothing changed.
	}

	beginOK := rules.Begin.apply(begin)
	mainOK := rules.Main.apply(main)
	doneOK := rules.Done.apply(done)

	if !mainOK {
		mainCp := (*main)[0:]

		lastIdx := len(mainCp) - 1

		if beginOK {
			if len(mainCp) > 1 {
				mainCpFirstButNotLast := make(context.Handlers, lastIdx)
				copy(mainCpFirstButNotLast, mainCp[:lastIdx])

				for i, h := range mainCpFirstButNotLast {
					(*main)[i] = rules.Begin.buildHandler(h)
				}
			}
		}

		if doneOK {
			latestMainHandler := mainCp[lastIdx]
			(*main)[lastIdx] = rules.Done.buildHandler(latestMainHandler)
		}
	}
}

// ExecutionOptions is a set of default behaviors that can be changed in order to customize the execution flow of the routes' handlers with ease.
//