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Rob Pike c58f1bb65f text/template: permit eq and ne funcs to check against nil 
The existing code errors out immediately if the argument is not
"comparable", making it impossible to test a slice, map, and so
on from being compared to nil.

Fix by delaying the "comparable" error check until we encounter
an actual check between two non-comparable, non-nil values.

Note for the future: reflect makes it unnecessarily clumsy
to deal with nil values in cases like this. For instance, it
should be possible to check if a value is nil without stepping
around a panic. See the new functions isNil and canCompare
for my (too expensive) workaround.

Fixes #51642

Change-Id: Ic4072698c4910130ea7e3d76e7a148d8a8b88162
Reviewed-on: https://go-review.googlesource.com/c/go/+/392274
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Trust: Cherry Mui <cherryyz@google.com>
2022-04-04 17:28:30 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api regexp/syntax: add and use ErrInvalidDepth 2022-04-04 10:59:27 +00:00
doc net: support error.Is of network errors and context errors 2022-04-03 15:43:15 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc cmd/cgo: retain original file paths in godefs generated comment 2022-04-03 07:18:10 +00:00
src text/template: permit eq and ne funcs to check against nil 2022-04-04 17:28:30 +00:00
test cmd/compile: support reading union type for compiler backend in unified IR 2022-04-04 16:25:52 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: change email of Ben Shi (individual CLA) 2022-03-22 16:02:31 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: change email of Ben Shi (individual CLA) 2022-03-22 16:02:31 +00:00
LICENSE
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README.md README.md: update links to go.dev 2022-03-20 16:05:03 +00:00
SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

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Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.