54 lines
961 B
Go
54 lines
961 B
Go
package main
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// Tests of defer. (Deferred recover() belongs is recover.go.)
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import "fmt"
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func deferMutatesResults(noArgReturn bool) (a, b int) {
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defer func() {
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if a != 1 || b != 2 {
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panic(fmt.Sprint(a, b))
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}
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a, b = 3, 4
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}()
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if noArgReturn {
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a, b = 1, 2
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return
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}
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return 1, 2
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}
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func init() {
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a, b := deferMutatesResults(true)
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if a != 3 || b != 4 {
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panic(fmt.Sprint(a, b))
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}
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a, b = deferMutatesResults(false)
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if a != 3 || b != 4 {
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panic(fmt.Sprint(a, b))
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}
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}
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// We concatenate init blocks to make a single function, but we must
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// run defers at the end of each block, not the combined function.
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var deferCount = 0
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func init() {
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deferCount = 1
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defer func() {
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deferCount++
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}()
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// defer runs HERE
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}
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func init() {
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// Strictly speaking the spec says deferCount may be 0 or 2
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// since the relative order of init blocks is unspecified.
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if deferCount != 2 {
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panic(deferCount) // defer call has not run!
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}
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}
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func main() {
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}
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