go/src/errors, branch fix-runtime-test-GOMAXPROCS

errors: add joinError Unwrap example

2025-05-27T15:37:09Z

Change-Id: Id7489247e9bdd413f82fdf5a70197856c47abfb5 Reviewed-on: https://go-review.googlesource.com/c/go/+/674336 Reviewed-by: Michael Knyszek Reviewed-by: Sean Liao LUCI-TryBot-Result: Go LUCI Reviewed-by: David Chase Auto-Submit: Sean Liao

errors: optimize errors.Join for single unwrappable errors

2025-04-14T13:49:08Z

Change-Id: I10bbb782ca7234cda8c82353f2255eec5be588c9 GitHub-Last-Rev: e5ad8fdb802e56bb36c41b4982ed27c1e0809af8 GitHub-Pull-Request: golang/go#70770 Reviewed-on: https://go-review.googlesource.com/c/go/+/635115 Auto-Submit: Sean Liao Reviewed-by: Michael Pratt Reviewed-by: Sean Liao Reviewed-by: Dmitri Shuralyov LUCI-TryBot-Result: Go LUCI

errors: reference Go 1.13 article about errors

2024-09-30T17:37:38Z

This commit amends package errors' documentation to include a reference to the https://go.dev/blog/go1.13-errors blog article. The motivation is multi-fold, but chiefly the article includes good information about error philosophy (e.g., when to wrap), and developers who have come to Go in the intervening five years are likely not have seen this article at all given the nature of blog publishing and post fanfare. The material deserves a promotion in visibility. Change-Id: Ia6f8307784521dd59de3a3d638dbc0a7fcd445e6 GitHub-Last-Rev: 20980dd5070cde495ebb08386ae7b4cd78ccc612 GitHub-Pull-Request: golang/go#69698 Reviewed-on: https://go-review.googlesource.com/c/go/+/616341 Reviewed-by: Jonathan Amsterdam Reviewed-by: Damien Neil LUCI-TryBot-Result: Go LUCI Reviewed-by: Michael Knyszek

errors: change interface{} to any in comment

2024-05-24T17:13:04Z

Change-Id: Ibf28c4b3026019427a2485230e14929ed80a1727 Reviewed-on: https://go-review.googlesource.com/c/go/+/587255 Reviewed-by: Ian Lance Taylor LUCI-TryBot-Result: Go LUCI Auto-Submit: Ian Lance Taylor Reviewed-by: Carlos Amedee

errors: return early for Is(nil, ...)

2024-04-03T22:49:49Z

If err is nil it wouldn't match any given target error except for nil, so we can return early to speed up cases where Is is used without a preceding err != nil check. Change-Id: Ib33cff50453fe070f06871ce8074694c81ab787b Reviewed-on: https://go-review.googlesource.com/c/go/+/576015 Reviewed-by: Dmitri Shuralyov LUCI-TryBot-Result: Go LUCI Auto-Submit: Tobias Klauser Reviewed-by: Ian Lance Taylor

errors: clarify references to Unwrap in doc

2023-11-21T22:04:29Z

CL 535080 incorrectly links the unclear mention of Unwrap to the func Unwrap in doc for errors.Is and errors.As Instead we clarify that "Unwrap" is a reference to the "Unwrap() error" or "Unwrap() []error" methods, not to the "Unwrap(error) error" function which is also available in the package. Change-Id: I8314993932e1e7a2dc77400f74d81f3a8aa891de Reviewed-on: https://go-review.googlesource.com/c/go/+/538155 Reviewed-by: Cherry Mui Run-TryBot: qiulaidongfeng <2645477756@qq.com> TryBot-Result: Gopher Robot Reviewed-by: David Chase

errors: add available godoc link

2023-11-02T19:45:41Z

Change-Id: Ie86493ebad3c3d7ea914754451985d7ee3e8e270 Reviewed-on: https://go-review.googlesource.com/c/go/+/535080 Reviewed-by: Ian Lance Taylor Run-TryBot: shuang cui TryBot-Result: Gopher Robot Reviewed-by: Cherry Mui Reviewed-by: qiulaidongfeng <2645477756@qq.com>

errors: optimize Is and As by reusing reflection of target

2023-08-18T23:40:44Z

goos: darwin goarch: amd64 pkg: errors cpu: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz │ old │ new │ │ sec/op │ sec/op vs base │ Is-12 133.4n ± 0% 126.8n ± 3% -4.91% (p=0.001 n=10) As-12 464.1n ± 1% 307.2n ± 0% -33.80% (p=0.000 n=10) geomean 248.8n 197.4n -20.66% │ old │ new │ │ B/op │ B/op vs base │ Is-12 24.00 ± 0% 24.00 ± 0% ~ (p=1.000 n=10) ¹ As-12 40.00 ± 0% 40.00 ± 0% ~ (p=1.000 n=10) ¹ geomean 30.98 30.98 +0.00% ¹ all samples are equal │ old │ new │ │ allocs/op │ allocs/op vs base │ Is-12 1.000 ± 0% 1.000 ± 0% ~ (p=1.000 n=10) ¹ As-12 2.000 ± 0% 2.000 ± 0% ~ (p=1.000 n=10) ¹ geomean 1.414 1.414 +0.00% ¹ all samples are equal Change-Id: I0844f3ab77e63b5f773594157dcffaffffd5e70d Reviewed-on: https://go-review.googlesource.com/c/go/+/520756 Run-TryBot: Ian Lance Taylor Run-TryBot: Ian Lance Taylor TryBot-Result: Gopher Robot Reviewed-by: Ian Lance Taylor Auto-Submit: Ian Lance Taylor Reviewed-by: Dmitri Shuralyov

errors: add a colon after Output to make the Example in the document display correctly

2023-08-16T02:08:40Z

Change-Id: Iaa1751c6ac0df9d5b2cb74efb16996f4eaea0503 Reviewed-on: https://go-review.googlesource.com/c/go/+/519236 Reviewed-by: Ian Lance Taylor TryBot-Result: Gopher Robot Run-TryBot: shuang cui Run-TryBot: Ian Lance Taylor Auto-Submit: Ian Lance Taylor Reviewed-by: Dmitri Shuralyov

errors: optimize *joinError's Error method for less allocation and faster execution

2023-07-31T18:37:32Z

Handle the case of one error at the beginning. Use unsafe.String to avoid memory allocation when converting byte slice to string. Change-Id: Ib23576f72b1d87489e6f17762be483f62ca4998a GitHub-Last-Rev: ed8003bfbcae8efd42e54895db0554c139b9d3a7 GitHub-Pull-Request: golang/go#60026 Reviewed-on: https://go-review.googlesource.com/c/go/+/493237 Reviewed-by: Damien Neil TryBot-Result: Gopher Robot Reviewed-by: David Chase Run-TryBot: Ian Lance Taylor