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Diffstat (limited to '')
-rw-r--r-- | test/defernil.go | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/defernil.go b/test/defernil.go new file mode 100644 index 0000000..5be3abd --- /dev/null +++ b/test/defernil.go @@ -0,0 +1,33 @@ +// run + +// Copyright 2019 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Check that deferring a nil function causes a proper +// panic when the deferred function is invoked (not +// when the function is deferred). +// See Issue #8047 and #34926. + +package main + +var x = 0 + +func main() { + defer func() { + err := recover() + if err == nil { + panic("did not panic") + } + if x != 1 { + panic("FAIL") + } + }() + f() +} + +func f() { + var nilf func() + defer nilf() + x = 1 +} |