Added a return to bug357.go to avoid an error which gccgo
reports but 6g does not.

bug353.go:16:14: error: reference to undefined identifer ‘io.ReadWriterCloser’

bug357.go:18:2: error: value computed is not used

bug358.go:14:11: error: imported and not used: ioutil
bug358.go:19:9: error: invalid use of type

bug359.go:25:14: error: redefinition of ‘a’
bug359.go:25:6: note: previous definition of ‘a’ was here
bug359.go:19:6: error: incompatible type in initialization (implicit assignment of ‘list.List’ hidden field ‘front’)

bug362.go:13:6: error: iota is only defined in const declarations
bug362.go:14:6: error: iota is only defined in const declarations
bug362.go:15:6: error: iota is only defined in const declarations

bug363.go:13:12: error: shift of non-integer operand
bug363.go:16:12: error: shift of non-integer operand

bug365.go:15:8: error: expected package

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5078046

bug349.go:12:14: error: expected ‘;’ or ‘}’ or newline
bug349.go:12:2: error: not enough arguments to return

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5081047

goto.go:39:2: error: goto jumps over declaration of ‘x’
goto.go:40:2: note: ‘x’ defined here
goto.go:57:2: error: goto jumps over declaration of ‘x’
goto.go:62:2: note: ‘x’ defined here
goto.go:77:2: error: goto jumps over declaration of ‘x’
goto.go:78:2: note: ‘x’ defined here
goto.go:87:2: error: goto jumps over declaration of ‘x’
goto.go:88:2: note: ‘x’ defined here
goto.go:114:2: error: goto jumps into block
goto.go:115:2: note: goto target block starts here
goto.go:125:2: error: goto jumps into block
goto.go:122:2: note: goto target block starts here
goto.go:130:2: error: goto jumps into block
goto.go:133:4: note: goto target block starts here
goto.go:142:2: error: goto jumps into block
goto.go:145:2: note: goto target block starts here
goto.go:179:2: error: goto jumps into block
goto.go:180:10: note: goto target block starts here
goto.go:186:2: error: goto jumps into block
goto.go:187:10: note: goto target block starts here
goto.go:194:2: error: goto jumps into block
goto.go:196:4: note: goto target block starts here
goto.go:205:3: error: goto jumps into block
goto.go:202:11: note: goto target block starts here
goto.go:211:3: error: goto jumps into block
goto.go:212:4: note: goto target block starts here
goto.go:219:3: error: goto jumps into block
goto.go:220:18: note: goto target block starts here
goto.go:227:3: error: goto jumps into block
goto.go:228:18: note: goto target block starts here
goto.go:241:3: error: goto jumps into block
goto.go:243:4: note: goto target block starts here
goto.go:290:2: error: goto jumps into block
goto.go:287:6: note: goto target block starts here
goto.go:299:2: error: goto jumps into block
goto.go:294:6: note: goto target block starts here
goto.go:306:2: error: goto jumps into block
goto.go:303:12: note: goto target block starts here
goto.go:313:2: error: goto jumps into block
goto.go:310:24: note: goto target block starts here
goto.go:320:2: error: goto jumps into block
goto.go:317:18: note: goto target block starts here
goto.go:327:2: error: goto jumps into block
goto.go:324:18: note: goto target block starts here
goto.go:334:2: error: goto jumps into block
goto.go:331:18: note: goto target block starts here
goto.go:341:2: error: goto jumps into block
goto.go:338:18: note: goto target block starts here
goto.go:395:2: error: goto jumps into block
goto.go:398:2: note: goto target block starts here
goto.go:403:2: error: goto jumps into block
goto.go:406:2: note: goto target block starts here
goto.go:413:2: error: goto jumps into block
goto.go:417:2: note: goto target block starts here
goto.go:424:3: error: goto jumps into block
goto.go:426:2: note: goto target block starts here
goto.go:436:3: error: goto jumps into block
goto.go:433:2: note: goto target block starts here
goto.go:492:2: error: goto jumps into block
goto.go:495:2: note: goto target block starts here
goto.go:500:2: error: goto jumps into block
goto.go:503:2: note: goto target block starts here
goto.go:510:2: error: goto jumps into block
goto.go:514:2: note: goto target block starts here
goto.go:521:3: error: goto jumps into block
goto.go:523:2: note: goto target block starts here
goto.go:533:3: error: goto jumps into block
goto.go:530:2: note: goto target block starts here

bug344.go:17:2: error: goto jumps into block
bug344.go:20:21: note: goto target block starts here

R=rsc
CC=golang-dev
https://golang.org/cl/5077044

Use gobs to serialize indexes instead of encoding/binary.

Even with gobs, serialize data in slices instead of
applying gob to the entire data structure at once,
to reduce the amount of extra buffer memory needed
inside gob.

7x faster Write/Read for new BenchmarkSaveRestore
compared to old code; possibly because encoding/binary
is more expensive for int32 slice elements (interface
call to get little/big endian encoding), while gob's
encoding is fixed (unconfirmed).

new (using gobs):
suffixarray.BenchmarkSaveRestore	       1	2153604000 ns/op

old (using encoding/binary):
suffixarray.BenchmarkSaveRestore	       1	15118322000 ns/op

The actual serialized data is slightly larger then using
the old code for very large indices because full 32bit indices
require 5bytes using gobs instead of 4bytes (encoding/binary)
in serialized form.

R=r
CC=golang-dev
https://golang.org/cl/5087041

R=rsc
CC=golang-dev
https://golang.org/cl/5091044

This allows testing TLS with different http.Server
options (timeouts, limits).

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5094043

Fixes #2279.

R=bradfitz, r, r
CC=golang-dev
https://golang.org/cl/5096042

Code was double-allocating in some cases.
Fixes #2267.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5093042

bug337.go:17:2: error: value computed is not used

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5094042

        This CL generalises the pair of halfConnection members that the
        serverConn holds into a single transport struct that is shared by
        both Server and Client, see also CL 5037047.

        This CL is a replacement for 5040046 which I closed by accident.

R=agl, bradfitz
CC=golang-dev
https://golang.org/cl/5075042

Formulaic changes to transition functions in preparation for CL 5074041.
This should be completely semantics preserving.

R=nigeltao
CC=golang-dev
https://golang.org/cl/5091041

Fixes #2263

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5076042

Instead of erroring on actions inside comments, use existing escaping
pipeline to quash the output of actions inside comments.

If a template maintainer uses a comment to disable template code:

  {{if .}}Hello, {{.}}!{{end}}

->

  <!--{{if true}}Hello, {{.}}!{{end}}-->

will result in

  <!--Hello, !-->

regardless of the value of {{.}}.

In a later CL, comment elision will result in the entire commented-out
section being dropped from the template output.

Any side-effects in pipelines, such as panics, will still be realized.

R=nigeltao
CC=golang-dev
https://golang.org/cl/5078041

Non semantics-changing refactoring in preparation for comment elision.

R=nigeltao
CC=golang-dev
https://golang.org/cl/5071043

Fixes #2275.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5082041

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5030057

fixes #2221

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4952052

MFENCE was introduced only on the Pentium4 (SSE2),
while XADD was introduced on the 486.
Fixes #2268.

R=golang-dev, rsc
CC=fshahriar, golang-dev
https://golang.org/cl/5056045

Minorly improves runtime by about 2-3%

R=gri, jeff
CC=golang-dev
https://golang.org/cl/5052045

Fixes #2272

R=rsc
CC=golang-dev
https://golang.org/cl/5043051

R=r
CC=golang-dev
https://golang.org/cl/5056049

The algtype-based test broke when algtype
got a bit more fine-grained, so replace with
an explicit check for the invalid key types.

R=ken2
CC=golang-dev
https://golang.org/cl/5071041

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5070041

cgo: cgo to use GOARCH from the environment, not runtime.GOARCH (otherwise it results in necessity of having 8cgo and 6cgo)

R=rsc, adg
CC=golang-dev
https://golang.org/cl/4978061

Fixes #2256.

R=ken2
CC=golang-dev
https://golang.org/cl/5044047

        This line was triggering a null dereference warning
        under clang-3.0. The line was added in a46819aa9150
        but compared to it's sibling in 6l it appears to be
        leftover debugging.

R=rsc
CC=golang-dev
https://golang.org/cl/5049042

R=dsymonds, r
CC=golang-dev
https://golang.org/cl/5050049

Previously /etc/hosts would be ignored altogether, this change returns matching results
from that file without talking to a DNS server.

R=rsc
CC=golang-dev
https://golang.org/cl/5061042

R=rsc
CC=golang-dev
https://golang.org/cl/5046041

R=agl
CC=golang-dev
https://golang.org/cl/5030054

A port of Provos and Mazières's adapative hashing algorithm. See http://www.usenix.org/events/usenix99/provos/provos_html/node1.html

R=bradfitz, agl, rsc, dchest
CC=golang-dev
https://golang.org/cl/4964078

Mostly useful for the coming crypto/bcrypt package

R=bradfitz, agl, rsc, agl
CC=golang-dev
https://golang.org/cl/5013043

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5059046

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5030045

R=dsymonds
CC=golang-dev
https://golang.org/cl/5045045

This addresses several use cases:

(1) <h{{.HeaderLevel}}> used to build hierarchical documents.
(2) <input on{{.EventType}}=...> used in widgets.
(3) <div {{" dir=ltr"}}> used to embed bidi-hints.

It also makes sure that we treat the two templates below the same:

<img src={{if .Avatar}}"{{.Avatar}}"{{else}}"anonymous.png"{{end}}>
<img src="{{if .Avatar}}{{.Avatar}}{{else}}anonymous.png{{end}}">

This splits up tTag into a number of sub-states and adds testcases.

R=nigeltao
CC=golang-dev
https://golang.org/cl/5043042

The template

  <{{.}}

would violate the structure preservation property if allowed and not
normalized, because when {{.}} emitted "", the "<" would be part of
a text node, but if {{.}} emitted "a", the "<" would not be part of
a text node.

This change rewrites '<' in text nodes and RCDATA text nodes to
'&lt;' allowing template authors to write the common, and arguably more
readable:

    Your price: {{.P1}} < list price {{.P2}}

while preserving the structure preservation property.

It also lays the groundwork for comment elision, rewriting

    Foo <!-- comment with secret project details --> Bar

to

    Foo  Bar

R=nigeltao
CC=golang-dev
https://golang.org/cl/5043043

HTML5 uses "Valid URL potentially surrounded by spaces" for
attrs: http://www.w3.org/TR/html5/index.html#attributes-1

    <a href=" {{.}}">

should be escaped to filter out "javascript:..." as data.

R=nigeltao
CC=golang-dev
https://golang.org/cl/5027045

The typical UNIX method for controlling long running process is to
send the process signals. Since this doesn't get you very far, various
ad-hoc, remote-control protocols have been used over time by programs
like Apache and BIND.

Implementing an SSH server means that Go code will have a standard,
secure way to do this in the future.

R=bradfitz, borman, dave, gustavo, dsymonds, r, adg, rsc, rogpeppe, lvd, kevlar, raul.san
CC=golang-dev
https://golang.org/cl/4962064

Documentation more along the lines of os.FileInfo
Fixes #2180.

R=golang-dev, dsymonds
CC=golang-dev, mike.rosset
https://golang.org/cl/4958055