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Joe Tsai ebf182c82d reflect: avoid TypeOf in init
Calling TypeOf to initialize variables forces any import of "reflect"
to link in the declared types of "reflect" even if they are unused.
TypeOf operates on Type and which will pull in
all transitive dependencies of Type, which includes Value as well.
Avoid this problem by declaring a rtypeOf function that
directly extracts the *rtype from an interface value
without going through Type as an intermediate type.

For a program that blank imports "reflect",
this reduces the binary size by ~34 KiB.

Updates #54097

Change-Id: I8dc7d8da8fedc48cc0dd842b69f510d17144827e
Reviewed-on: https://go-review.googlesource.com/c/go/+/419757
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-08-08 17:36:35 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api fmt: add a function to recover the original format string given a State 2022-08-06 09:19:31 +00:00
doc doc: move Go 1.19 release notes to x/website 2022-08-01 18:07:12 +00:00
lib/time lib/time, time/tzdata: update to 2022a 2022-05-31 08:53:53 +00:00
misc all: disable tests that fail on Alpine 2022-08-02 17:23:42 +00:00
src reflect: avoid TypeOf in init 2022-08-08 17:36:35 +00:00
test cmd/compile: avoid assignment conversion in append(a, b...) 2022-08-08 16:58:57 +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
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
LICENSE
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README.md README.md: update wiki link 2022-04-26 16:21:18 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00

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