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  17. 23 Jan, 2019 6 commits
  19. 22 Jan, 2019 3 commits
    • Keith Randall's avatar
      cmd/compile: don't bother compiling functions named "_" · 1fb59614
      Keith Randall authored 
      They can't be used, so we don't need code generated for them. We just
need to report errors in their bodies.

This is the minimal CL for 1.12. For 1.13, CL 158845 will remove
a bunch of special cases sprinkled about the compiler to handle "_"
functions, which should (after this CL) be unnecessary.

Update #29870

Change-Id: Iaa1c194bd0017dffdce86589fe2d36726ee83c13
Reviewed-on: https://go-review.googlesource.com/c/158820
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: 's avatarBrad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
      1fb59614
    • Filippo Valsorda's avatar
      crypto/subtle: normalize constant time ops docs · ef82ecd0
      Filippo Valsorda authored 
      ConstantTimeCompare is fairly useless if you can't rely on it being zero
when the slices are different, but thankfully it has that property
thanks to the final ConstantTimeByteEq.

Change-Id: Id51100ed7d8237abbbb15778a259065b162a48ad
Reviewed-on: https://go-review.googlesource.com/c/158643Reviewed-by: 's avatarBrad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: 's avatarAdam Langley <agl@golang.org>
      ef82ecd0
    • Dmitri Shuralyov's avatar
      cmd/go: copy missing bit of documentation about code generated comment · 8d2e65d2
      Dmitri Shuralyov authored 
      This CL attempts to restore the clarity of the original specification
at https://golang.org/s/generatedcode that the line may appear
anywhere. It is preferable (for human readability), and most common
for it to be early in the file, but that is merely a convention, not
a strict well-specified requirement. Document it as so.

Background

Issue #13560 was a proposal define a standard for marking files as
generated, one that is suitable to be recognized both by humans
and machine tools. It was accepted, and the final specification
was documented at https://golang.org/s/generatedcode. Its text,
copied exactly:

	Generated files are marked by a line of text that matches
	the regular expression, in Go syntax:

		^// Code generated .* DO NOT EDIT\.$

	The .* means the tool can put whatever folderol it wants in there,
	but the comment must be a single line and must start with Code generated
	and end with DO NOT EDIT., with a period.

	The text may appear anywhere in the file.

The https://golang.org/s/generatedcode link points to a comment
in a very large GitHub issue. That makes it harder to find.
Issue #25433 was opened about moving that information somewhere else.
It was resolved via CL 118756, which added text to cmd/go documentation
at https://golang.org/cmd/go/#hdr-Generate_Go_files_by_processing_source:

	To convey to humans and machine tools that code is generated,
	generated source should have a line early in the file that
	matches the following regular expression (in Go syntax):

		^// Code generated .* DO NOT EDIT\.$

The CL description noted that "This change merely moves that
information to a more visible place." The intention was to preserve
the specification unmodified.

The original specification was very clear that "The text may appear
anywhere in the file." The new text in cmd/go documentation wasn't
very clear. "A line early in the file" is not a precise enough criteria
to be recognized by a machine tool, because there isn't a precise
definition of what lines are "early in the file".

Updates #13560
Updates #25433
Updates #28089

Change-Id: I4e374163b16c3f972f9591ec2647fd3d5a2dd5ae
Reviewed-on: https://go-review.googlesource.com/c/158817Reviewed-by: 's avatarRob Pike <r@golang.org>
      8d2e65d2
  21. 21 Jan, 2019 3 commits
  23. 20 Jan, 2019 2 commits