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75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
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// errorcheck -0 -m -l
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// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Test escape analysis for function parameters.
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package foo
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var Ssink *string
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type U struct {
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_sp *string
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_spp **string
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}
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func A(sp *string, spp **string) U { // ERROR "leaking param: sp to result ~r2 level=0$" "leaking param: spp to result ~r2 level=0$"
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return U{sp, spp}
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}
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func B(spp **string) U { // ERROR "leaking param: spp to result ~r1 level=0$" "leaking param: spp to result ~r1 level=1$"
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return U{*spp, spp}
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}
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func tA1() {
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s := "cat"
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sp := &s // ERROR "tA1 &s does not escape$"
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spp := &sp // ERROR "tA1 &sp does not escape$"
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u := A(sp, spp)
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_ = u
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println(s)
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}
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func tA2() {
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s := "cat"
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sp := &s // ERROR "tA2 &s does not escape$"
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spp := &sp // ERROR "tA2 &sp does not escape$"
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u := A(sp, spp)
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println(*u._sp)
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}
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func tA3() {
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s := "cat"
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sp := &s // ERROR "tA3 &s does not escape$"
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spp := &sp // ERROR "tA3 &sp does not escape$"
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u := A(sp, spp)
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println(**u._spp)
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}
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func tB1() {
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s := "cat"
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sp := &s // ERROR "tB1 &s does not escape$"
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spp := &sp // ERROR "tB1 &sp does not escape$"
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u := B(spp)
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_ = u
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println(s)
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}
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func tB2() {
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s := "cat"
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sp := &s // ERROR "tB2 &s does not escape$"
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spp := &sp // ERROR "tB2 &sp does not escape$"
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u := B(spp)
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println(*u._sp)
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}
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func tB3() {
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s := "cat"
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sp := &s // ERROR "tB3 &s does not escape$"
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spp := &sp // ERROR "tB3 &sp does not escape$"
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u := B(spp)
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println(**u._spp)
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}
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