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| author | Ian Lance Taylor <iant@golang.org> | 2013-04-29 12:01:32 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2013-04-29 12:01:32 -0700 |
| commit | 806dea82d4668c079856b77b3824143500405d25 (patch) | |
| tree | 1767cb7e5faedba63842f6afd1596155ad63b232 | |
| parent | 13721cf68860ef98358720ed10aef0e8be39e300 (diff) | |
| download | go-806dea82d4668c079856b77b3824143500405d25.tar.gz go-806dea82d4668c079856b77b3824143500405d25.zip | |
fmt: document that if String or Error panics, that value is printed
Fixes #5350.
R=r, minux.ma
CC=golang-dev
https://golang.org/cl/8950043
| -rw-r--r-- | src/pkg/fmt/doc.go | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/pkg/fmt/doc.go b/src/pkg/fmt/doc.go index 3cd02d7ede..b8dd995c77 100644 --- a/src/pkg/fmt/doc.go +++ b/src/pkg/fmt/doc.go @@ -138,6 +138,16 @@ by a single character (the verb) and end with a parenthesized description. + If an Error or String method triggers a panic when called by a + print routine, the fmt package reformats the error message + from the panic, decorating it with an indication that it came + through the fmt package. For example, if a String method + calls panic("bad"), the resulting formatted message will look + like + %s(PANIC=bad) + + The %s just shows the print verb in use when the failure + occurred. Scanning |