You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: terminates.go
    path of file: ./repos/goreportcard/vendor/honnef.co/go/tools/go/ir/irutil
    
    the code of the file until where you have to start completion: package irutil

import (
	"go/types"

	"honnef.co/go/tools/go/ir"
)

// Terminates reports whether fn is supposed to return, that is if it
// has at least one theoretic path that returns from the function.
// Explicit panics do not count as terminating.
func Terminates(fn *ir.Function) bool {
	if fn.Blocks == nil {
		// assuming that a function terminates is the conservative
		// choice
		return true
	}

	for _, block := range fn.Blocks {
		if _, ok := block.Control().(*ir.Return); ok {
			if len(block.Preds) == 0 {
				return true
			}
			for _, pred := range block.Preds {
				switch ctrl := pred.Control().(type) {
				case *ir.Panic:
					// explicit panics do not count as terminating
				case *ir.If:
					// Check if we got here by receiving from a closed
					// time.Tick channel â€“ this cannot happen at
					// runtime and t
    
func Terminates(fn *ir.Function) bool {
	if fn.Blocks == nil {
		// assuming that a function terminates is the conservative
		// choice
		return true
	}

	for _, block := range fn.Blocks {
		if _, ok := block.Control().(*ir.Return); ok {
			if len(block.Preds) == 0 {
				return true
			}
			for _, pred := range block.Preds {
				switch ctrl := pred.Control().(type) {
				case *ir.Panic:
					// explicit panics do not count as terminating
				case *ir.If:
					// Check if we got here by receiving from a closed
					// time.Tick channel â€“ this cannot happen at
					// runtime and thus doesn't constitute termination
					iff := ctrl
					if !ok {
						return true
					}
					ex, ok := iff.Cond.(*ir.Extract)
					if !ok {
						return true
					}
					if ex.Index != 1 {
						return true
					}
					recv, ok := ex.Tuple.(*ir.Recv)
					if !ok {
						return true
					}
					call, ok := recv.Chan.(*ir.Call)
					if !ok {
						return true
					}
					fn, ok := call.Common().Value.(*ir.Function)
					if !ok {
						return true
					}
					fn2, ok := fn.Object().(*types.Func)
					if !ok {
						return true
					}
					if fn2.FullName() != "time.Tick" {
						return true
					}
				default:
					// we've reached the exit block
					return true
				}
			}
		}
	}
	return false
}