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edcc062bdc
The false positives (var incorrectly escapes) are marked with BAD. Change-Id: If64fabb6ea96de44a1177d9ab12e2ccc579fe0c4 Reviewed-on: https://go-review.googlesource.com/5294 Reviewed-by: Keith Randall <khr@golang.org>
109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
// 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 indirection level computation in escape analysis.
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package escape
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var sink interface{}
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func level0() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "moved to heap: p0" "&i escapes to heap"
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p1 := &p0 // ERROR "moved to heap: p1" "&p0 escapes to heap"
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p2 := &p1 // ERROR "moved to heap: p2" "&p1 escapes to heap"
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sink = &p2 // ERROR "&p2 escapes to heap"
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}
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func level1() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "moved to heap: p0" "&i escapes to heap"
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p1 := &p0 // ERROR "moved to heap: p1" "&p0 escapes to heap"
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p2 := &p1 // ERROR "&p1 escapes to heap"
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sink = p2 // ERROR "p2 escapes to heap"
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}
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func level2() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "moved to heap: p0" "&i escapes to heap"
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p1 := &p0 // ERROR "&p0 escapes to heap"
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p2 := &p1 // ERROR "&p1 does not escape"
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sink = *p2 // ERROR "\*p2 escapes to heap"
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}
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func level3() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "&i escapes to heap"
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p1 := &p0 // ERROR "&p0 does not escape"
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p2 := &p1 // ERROR "&p1 does not escape"
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sink = **p2 // ERROR "\* \(\*p2\) escapes to heap"
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}
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func level4() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "moved to heap: p0" "&i escapes to heap"
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p1 := &p0 // ERROR "&p0 escapes to heap"
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p2 := p1 // ERROR "moved to heap: p2"
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sink = &p2 // ERROR "&p2 escapes to heap"
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}
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func level5() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "moved to heap: p0" "&i escapes to heap"
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p1 := &p0 // ERROR "&p0 escapes to heap"
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p2 := p1
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sink = p2 // ERROR "p2 escapes to heap"
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}
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func level6() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "&i escapes to heap"
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p1 := &p0 // ERROR "&p0 does not escape"
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p2 := p1
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sink = *p2 // ERROR "\*p2 escapes to heap"
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}
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func level7() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "moved to heap: p0" "&i escapes to heap"
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// BAD: p0 should not escape here
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p1 := &p0 // ERROR "&p0 escapes to heap"
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p2 := *p1 // ERROR "moved to heap: p2"
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sink = &p2 // ERROR "&p2 escapes to heap"
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}
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func level8() {
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i := 0 // ERROR "moved to heap: i"
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p0 := &i // ERROR "&i escapes to heap"
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p1 := &p0 // ERROR "&p0 does not escape"
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p2 := *p1
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sink = p2 // ERROR "p2 escapes to heap"
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}
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func level9() {
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i := 0
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p0 := &i // ERROR "&i does not escape"
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p1 := &p0 // ERROR "&p0 does not escape"
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p2 := *p1
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sink = *p2 // ERROR "\*p2 escapes to heap"
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}
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func level10() {
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i := 0
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p0 := &i // ERROR "&i does not escape"
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p1 := *p0
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p2 := &p1 // ERROR "&p1 does not escape"
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sink = *p2 // ERROR "\*p2 escapes to heap"
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}
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func level11() {
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i := 0
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p0 := &i // ERROR "&i does not escape"
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p1 := &p0 // ERROR "&p0 does not escape"
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p2 := **p1 // ERROR "moved to heap: p2"
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sink = &p2 // ERROR "&p2 escapes to heap"
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}
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