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| author | Rob Pike <r@golang.org> | 2014-09-22 15:35:25 -0700 |
|---|---|---|
| committer | Rob Pike <r@golang.org> | 2014-09-22 15:35:25 -0700 |
| commit | 892b5074f521ae812b880808e0bd79ee2a02b1a1 (patch) | |
| tree | e32fb402a4f65a52d1fb6fd01094599ab15cf749 /src/fmt | |
| parent | 1392276bfb7b6100b2def909ef9d19e477970f6b (diff) | |
| download | go-git-892b5074f521ae812b880808e0bd79ee2a02b1a1.tar.gz | |
fmt: document that self-recursive data structures can be fatal
Fixes #8241.
LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/144420043
Diffstat (limited to 'src/fmt')
| -rw-r--r-- | src/fmt/doc.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/fmt/doc.go b/src/fmt/doc.go index 5af8d3e717..b7eaedc11e 100644 --- a/src/fmt/doc.go +++ b/src/fmt/doc.go @@ -147,6 +147,10 @@ func (x X) String() string { return Sprintf("<%s>", x) } convert the value before recurring: func (x X) String() string { return Sprintf("<%s>", string(x)) } + Infinite recursion can also be triggered by self-referential data + structures, such as a slice that contains itself as an element, if + that type has a String method. Such pathologies are rare, however, + and the package does not protect against them. Explicit argument indexes: |