This one uses a closure than an interface, and is much simpler to use.
It also enables a called function to return an error and (possibly)
halt processing.
Fixes#2237.
R=golang-dev, gri, rsc, r, cw, n13m3y3r
CC=golang-dev
https://golang.org/cl/5014043
This adds support for {{template "callee"}} calls.
It recognizes that calls can appear in many contexts.
{{if .ImageURL}}
<img src="{{.ImageURL}}" alt="{{template "description"}}">
{{else}}
<p>{{template "description"}}</p>
{{end}}
calls a template in two different contexts, first in an HTML attribute
context, and second in an HTML text context.
Those two contexts aren't very different, but when linking text
to search terms, the escaping context can be materially different:
<a href="/search?q={{template "tags"}}">{{template "tags"}}</a>
This adds API:
EscapeSet(*template.Set, names ...string) os.Error
takes a set of templates and the names of those which might be called
in the default context as starting points.
It changes the escape* functions to be methods of an object which
maintains a conceptual mapping of
(template names*input context) -> output context.
The actual mapping uses as key a mangled name which combines the
template name with the input context.
The mangled name when the input context is the default context is the
same as the unmangled name.
When a template is called in multiple contexts, we clone the template.
{{define "tagLink"}}
<a href="/search?q={{template "tags"}}">{{template "tags"}}</a>
{{end}}
{{define "tags"}}
{{range .Tags}}{{.}},{{end}}
{{end}}
given []string{ "foo", "O'Reilly", "bar" } produces
<a href="/search?q=foo,O%27Reilly,bar">foo,O'Reilly,bar</a>
This involves rewriting the above to something like
{{define "tagLink"}}
<a href="/search?q={{template "tags$1"}}">{{template "tags"}}</a>
{{end}}
{{define "tags"}}
{{range .Tags}}{{. | html}},{{end}}
{{end}}
{{define "tags$1"}}
{{range .Tags}}{{. | urlquery}},{{end}}
{{end}}
clone.go provides a mechanism for cloning template "tags" to produce
"tags$1".
changes to escape.go implement the new API and context propagation
around the call graph.
context.go includes minor changes to support name mangling and
context_test.go tests those.
js.go contains a bug-fix.
R=nigeltao, r
CC=golang-dev
https://golang.org/cl/4969072
Often, division/regexp ambiguity doesn't matter in JS because the next
token is not a slash.
For example, in
<script>var global{{if .InitVal}} = {{.InitVal}}{{end}}</script>
When there is an initial value, the {{if}} ends with jsCtxDivOp
since a '/' following {{.InitVal}} would be a division operator.
When there is none, the empty {{else}} branch ends with jsCtxRegexp
since a '/' would start a regular expression. A '/' could result
in a valid program if it were on a new line to allow semicolon
insertion to terminate the VarDeclaration.
There is no '/' though, so we can ignore the ambiguity.
There are cases where a missing semi can result in ambiguity that
we should report.
<script>
{{if .X}}var x = {{.X}}{{end}}
/...{{.Y}}
</script>
where ... could be /foo/.test(bar) or /divisor. Disambiguating in
this case is hard and is required to sanitize {{.Y}}.
Note, that in the case where there is a '/' in the script tail but it
is not followed by any interpolation, we already don't care. So we
are already tolerant of
<script>{{if .X}}var x = {{.X}}{{end}}/a-bunch-of-text</script>
because tJS checks for </script> before looking in /a-bunch-of-text.
This CL
- Adds a jsCtx value: jsCtxUnknown
- Changes joinContext to join contexts that only differ by jsCtx.
- Changes tJS to return an error when a '/' is seen in jsCtxUnknown.
- Adds tests for both the happy and sad cases.
R=nigeltao
CC=golang-dev
https://golang.org/cl/4956077
This makes it possible to grab a block of code
in an editor and pipe it through gofmt, instead of
having to pipe in the entire file.
R=gri
CC=golang-dev
https://golang.org/cl/4973074
Weekday is redundant information for a Time structure.
When parsing a time with a weekday specified, it can create an
incorrect Time value.
When parsing a time without a weekday specified, people
expect the weekday to be set.
Fix all three problems by computing the weekday on demand.
This is hard to gofix, since we must change the type of the node.
Since uses are rare and existing code will be caught by the compiler,
there is no gofix module here.
Fixes#2245.
R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4974077
Augments type context and adds grammatical rules to handle special HTML constructs:
<!-- comments -->
<script>raw text</script>
<textarea>no tags here</textarea>
This CL does not elide comment content. I recommend we do that but
have not done it in this CL.
I used a codesearch tool over a codebase in another template language.
Based on the below I think we should definitely recognize
<script>, <style>, <textarea>, and <title>
as each of these appears frequently enough that there are few
template using apps that do not use most of them.
Of the other special tags,
<xmp>, <noscript>
are used but infrequently, and
<noframe> and friend, <listing>
do not appear at all.
We could support <xmp> even though it is obsolete in HTML5
because we already have the machinery, but I suggest we do not
support noscript since it is a normal tag in some browser
configurations.
I suggest recognizing and eliding <!-- comments -->
(but not escaping text spans) as they are widely used to
embed comments in template source. Not eliding them increases
the size of content sent over the network, and risks leaking
code and project internal details.
The template language I tested elides them so there are
no instance of IE conditional compilation directives in the
codebase but that could be a source of confusion.
The codesearch does the equivalent of
$ find . -name \*.file-extension \
| perl -ne 'print "\L$1\n" while s@<([a-z][a-z0-9])@@i' \
| sort | uniq -c | sort
The 5 uses of <plaintext> seem to be in tricky code and can be ignored.
The 2 uses of <xmp> appear in the same tricky code and can be ignored.
I also ignored end tags to avoid biasing against unary
elements and threw out some nonsense names since since the
long tail is dominated by uses of < as a comparison operator
in the template languages expression language.
I have added asterisks next to abnormal elements.
26765 div
7432 span
7414 td
4233 a
3730 tr
3238 input
2102 br
1756 li
1755 img
1674 table
1388 p
1311 th
1064 option
992 b
891 label
714 script *
519 ul
446 tbody
412 button
381 form
377 h2
358 select
353 strong
318 h3
314 body
303 html
266 link
262 textarea *
261 head
258 meta
225 title *
189 h1
176 col
156 style *
151 hr
119 iframe
103 h4
101 pre
100 dt
98 thead
90 dd
83 map
80 i
69 object
66 ol
65 em
60 param
60 font
57 fieldset
51 string
51 field
51 center
44 bidi
37 kbd
35 legend
30 nobr
29 dl
28 var
26 small
21 cite
21 base
20 embed
19 colgroup
12 u
12 canvas
10 sup
10 rect
10 optgroup
10 noscript *
9 wbr
9 blockquote
8 tfoot
8 code
8 caption
8 abbr
7 msg
6 tt
6 text
6 h5
5 svg
5 plaintext *
5 article
4 shortquote
4 number
4 menu
4 ins
3 progress
3 header
3 content
3 bool
3 audio
3 attribute
3 acronym
2 xmp *
2 overwrite
2 objects
2 nobreak
2 metadata
2 description
2 datasource
2 category
2 action
R=nigeltao
CC=golang-dev
https://golang.org/cl/4964045
Also: fix layout of textual search results and
fix a field reference in the respective template.
Fixes#1987.
R=rsc, r
CC=golang-dev
https://golang.org/cl/4962061
This does not wire up <style> elements as that is pending support
for raw text content in CL https://golang.org/cl/4964045/
This CL allows actions to appear in contexts like
selectors: {{.Tag}}{{.Class}}{{.Id}}
property names: border-{{.BidiLeadingEdge}}
property values: color: {{.Color}}
strings: font-family: "{{font-name}}"
URL strings: background: "/foo?image={{.ImgQuery}}"
URL literals: background: url("{{.Image}}")
but disallows actions inside CSS comments and disallows
embedding of JS in CSS entirely.
It is based on the CSS3 lexical grammar with affordances for
common browser extensions including line comments.
R=nigeltao
CC=golang-dev
https://golang.org/cl/4968058
I don't know the protocol regarding the zsyscall files which appear to
be hand-generated, so I've re-done them and added them to the change.
R=rsc, alex.brainman, nigeltao
CC=golang-dev
https://golang.org/cl/4975060
API change. Needs further reflection.
««« original CL description
path/filepath: Simplify Walk interface
The last argument of filepath.Walk was removed, and the Visitor
interface now contains an Error method that is called on errors.
Fixes#2237.
R=golang-dev, gri, r
CC=golang-dev
https://golang.org/cl/4964067
»»»
R=r
CC=golang-dev
https://golang.org/cl/4974065
The last argument of filepath.Walk was removed, and the Visitor
interface now contains an Error method that is called on errors.
Fixes#2237.
R=golang-dev, gri, r
CC=golang-dev
https://golang.org/cl/4964067
The linker would catch them if gc succeeded,
but too often the cycle manifests as making the
current package and the imported copy of itself
appear as different packages, which result in
type signature mismatches that confuse users.
As a crutch, add the -p flag to say 'if you see an
import of this package, give up early'. Results in
messages like (during gotest in sort):
export_test.go:7: import "sort" while compiling that package (import cycle)
export_test.go:7: import "container/heap": package depends on "sort" (import cycle)
Fixes#2042.
R=ken
CC=bradfitz, dsymonds, golang-dev
https://golang.org/cl/4972057
Also add exp/regexp to build (forgot before).
At this point I am very confident in exp/regexp's
behavior. It should be usable as a drop-in
replacement for regexp now.
Later CLs could introduce a CompilePOSIX
to get at traditional POSIX ``extended regular expressions''
as in egrep and also an re.MatchLongest method to
change the matching mode to leftmost longest
instead of leftmost first. On the other hand, I expect
very few people to use either.
R=r, r, gustavo
CC=golang-dev
https://golang.org/cl/4990041
Note that this CL will break your existing code which uses
ParseCIDR.
This CL changes ParseCIDR("172.16.253.121/28") to return
the IP address "172.16.253.121", the network implied by the
network number "172.16.253.112" and mask "255.255.255.240".
R=rsc, borman
CC=golang-dev
https://golang.org/cl/4749043
- func f(int,) is a legal signature
- func f(...int,) is a legal signature
Defer checking for correct use of "..." with last
paremeter type to type checker instead of parser.
R=rsc
CC=golang-dev
https://golang.org/cl/4973059
There may be more fine-tuning down the line,
but this CL fixes the most pressing issue at
hand.
Also: gofmt -w src misc
Fixes#1524.
R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/4975053
Most web frameworks allow ; as a synonym for &,
following a recommendation in some versions of
the HTML specification. Do the same.
Remove overuse of Split.
Move ParseQuery tests from package http to package url.
Fixes#2210.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4973062
allocparams + tempname + compactframe
all knew about how to place stack variables.
Now only compactframe, renamed to allocauto,
does the work. Until the last minute, each PAUTO
variable is in its own space and has xoffset == 0.
This might break 5g. I get failures in concurrent
code running under qemu and I can't tell whether
it's 5g's fault or qemu's. We'll see what the real
ARM builders say.
R=ken2
CC=golang-dev
https://golang.org/cl/4973057
There's some ambiguity in the U{url: url} case as it could be
both a map or a struct literal, but given context it's more
likely a struct, so U{url: url_} rather than U{url_: url_}.
At least that was the case for me.
R=golang-dev, rsc, adg
CC=golang-dev
https://golang.org/cl/4972052
- read search index files in groutine to avoid
start-up failure on app engine because reading
the files takes too long
- permit usage of search index files and indexer
- minor cosmetic cleanups
R=dsymonds
CC=golang-dev
https://golang.org/cl/4952050
Needed to ensure that finding the last boundary does not result in O(n^2)-like behavior.
Now prevents lookbacks beyond 31 characters across the board (starter + 30 non-starters).
composition.go:
- maxCombiningCharacters now means exactly that.
- Bug fix.
- Small performance improvement/ made code consistent with other code.
forminfo.go:
- Bug fix: ccc needs to be 0 for inert runes.
normalize.go:
- A few bug fixes.
- Limit the amount of combining characters considered in FirstBoundary.
- Ditto for LastBoundary.
- Changed semantics of LastBoundary to not consider trailing illegal runes a boundary
as long as adding bytes might still make them legal.
trie.go:
- As utf8.UTFMax is 4, we should treat UTF-8 encodings of size 5 or greater as illegal.
This has no impact on the normalization process, but it prevents buffer overflows
where we expect at most UTFMax bytes.
R=r
CC=golang-dev
https://golang.org/cl/4963041
Interesting that Fprintf can do zero mallocs.
(Sprintf must allocate the returned string.)
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4977049
Was keeping a pointer to the labeled statement in n->right,
which meant that generic traversals of the tree visited it twice.
That combined with aggressive flattening of the block
structure when possible during parsing meant that
the kinds of label: code label: code label: code sequences
generated by yacc were giving the recursion 2ⁿ paths
through the program.
Fixes#2212.
R=lvd
CC=golang-dev
https://golang.org/cl/4960050
When installing profiling tools on Mac OS X print
message if there is a problem with /usr/local/bin
Fixes#2209.
R=golang-dev, r, adg
CC=golang-dev, mike.rosset
https://golang.org/cl/4950057
This transitions into a JS state when entering any attribute whose
name starts with "on".
It does not yet enter a JS on entry into a <script> element as script
element handling is introduced in another CL.
R=nigeltao
CC=golang-dev
https://golang.org/cl/4968052
- KindRuns don't need to repeat SpotKind,
it is stored in each Spot
- removed extra indirection from FileRuns
to KindRuns
- slight reduction of written index size
(~500KB)
R=rsc
CC=golang-dev
https://golang.org/cl/4969052
Does as much as possible in data layout instead
of during the init function.
Handles var x = y; var y = z as a special case too,
because it is so prevalent in package unicode
(var Greek = _Greek; var _Greek = []...).
Introduces InitPlan description of initialized data
so that it can be traversed multiple times (for example,
in the copy handler).
Cuts package unicode's init function size by 8x.
All that remains there is map initialization, which
is on the chopping block too.
Fixes sinit.go test case.
Aggregate DATA instructions at end of object file.
Checkpoint. More to come.
R=ken2
CC=golang-dev
https://golang.org/cl/4969051
My string literal was being rewritten from
"runtime.SysReserve(%p, %D) = error %d"
to
"runtime.SysReserve ( %p , %D ) = error %d"
R=iant
CC=golang-dev
https://golang.org/cl/4972051
- canonicalize package descriptors
- remove duplicate storage of file paths
- reduces (current) written index file by approx 3.5MB
(from 28434237B to 24686643B, or 13%)
- next step: untangle DAG (when serializing, using
gob, the index dag explodes into an index tree)
R=dsymonds
CC=golang-dev
https://golang.org/cl/4983042
1. adds a urlPart field to context
2. implements tURL to figure out the URL part
3. modifies joinContext to allow common context mismatches
around branches to be ignored when not material as in
<a href="/foo{{if .HasQuery}}?q={{.Query}}{{/if}}">
4. adds a pipeline function that filters dynamically inserted
protocols to prevent code injection via URLs.
R=nigeltao
CC=golang-dev
https://golang.org/cl/4957041
This CL implements a new godoc feature to save the search
index on disk. Use -write_index to create the search
index file named with -index_files. Use -index_files to
provide a glob pattern specifying index file(s) when
starting godoc; in this case the run-time indexer is not
run.
Known issues:
- saving/restoring full text index is not yet supported
- the list of flags and overall usage logic could use a
cleanup
R=rsc, dsymonds
CC=golang-dev
https://golang.org/cl/4974045
The result of sort.Search is in the interval [0,n);
specifically, if no entry is found, the result is n
and not -1.
R=dsymonds
CC=golang-dev
https://golang.org/cl/4982041
release.r50 looks for newest tag <= go.r50
weekly.2010-10-10 looks for newest tag <= go.2010-10-10
Implements behavior for hg, git, and bzr.
R=dsymonds, rsc, n13m3y3r
CC=golang-dev
https://golang.org/cl/4873057
Since JavaScript doesn't have [u]int64 types, some JSON APIs
encode such types as strings to avoid losing precision.
This adds a new struct tag option ",string" to cause
fields to be wrapped in JSON strings on encoding
and unwrapped from strings when decoding.
R=rsc, gustavo
CC=golang-dev
https://golang.org/cl/4918051
This should allow symlinks in tar files. Where previously
as far as I can see they were skipped completely.
R=golang-dev, dsymonds, rsc, bradfitz, bradfitz
CC=golang-dev, mike.rosset
https://golang.org/cl/4973044
This CL changes the internal form of IPMask for IPv4
from 16-byte to 4-byte, also adds Size method to IPMask
struct and changes output string format of IPMask.String
method.
R=rsc
CC=golang-dev
https://golang.org/cl/4950046
Add openbsd 386 syscall support, partially based on the existing
freebsd 386 syscall implementation.
FTR zerrors_openbsd_386.go cannot currently be completely built on
openbsd/i386 due to what appears to be a gcc bug. The constants can be
successfully generated with -m32 on openbsd/amd64 and the error
table can then be generated on openbsd/i386.
R=rsc
CC=golang-dev
https://golang.org/cl/4969045
- Rename sys_sched_yield() to osyield() as this is now defined in asm.h.
- Only print kern.rtheads message if rfork_thread() failed with ENOTSUP.
- Remove unused variables.
R=rsc
CC=golang-dev
https://golang.org/cl/4973043
gc/bits.c
. improved format with associated cast;
gc/closure.c
gc/dcl.c
gc/range.c
gc/reflect.c
gc/sinit.c
. dropped unnecessary assignments;
gc/gen.c
. dropped unnecessary assignment;
. added static qualifier to local function definition;
gc/go.h
. added varargck pragmas;
gc/lex.c
. used {} instead of ; in if statement to suppress warning;
. replaced exit(0) with exits(0);
. added compilation conditions for SIGBUS/SIGSEGV;
. dropped unnecessary assignment;
gc/mparith2.c
. dropped four unnecessary assignments/initialisations;
gc/obj.c
. added type cast to local pointer;
gc/pgen.c
. added cast and related print format;
gc/subr.c
. replaced exit(1) with exits("error");
. replaced unlink() with remove();
. renamed local cistrmp() as ucistrmp() to remove conflict with
Plan 9 function by the same name;
gc/swt.c
. added braces instead of ; as empty statment;
gc/typecheck.c
. added static qualifier to local function definition;
. dropped unnecessary assignments;
gc/walk.c
. dropped unnecessary assignments;
. added static qualifier to local function definitions;
R=rsc
CC=golang-dev
https://golang.org/cl/4964046
5g/cgen.c:
. USED(n4) as it is only mentioned in unreachable code later;
. dropped unused assignments;
. commented out unreachable code;
5g/cgen64.c:
5g/ggen.c:
. dropped unused assignments of function return value;
5g/gg.h:
. added varargck pragmas;
5g/peep.c:
. USED(p1) used only in unreacheable code;
. commented out unreachable code;
5g/reg.c:
. dropped unused assignment;
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4953048
Escape analysis was incorrectly assuming that
functions without bodies don't leak their
parameters. This meant that sync/atomic's
TestAddInt64 was allocating x on its stack,
and then x was not properly aligned for use
with the atomic 64-bit instructions. Obviously
we should figure out the alignment story on 5g
too, but this fix is correct and should restore the
build to 'ok'.
TBR=lvd
CC=golang-dev
https://golang.org/cl/4964047
cdecl calbacks have been implemented in C/ASM code, just Go function is missing
R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/4969047
-s now means *disable* escape analysis.
Fix escape leaks for struct/slice/map literals.
Add ... tracking.
Rewrite new(T) and slice literal into stack allocation when safe.
Add annotations to reflect.
Reflect is too chummy with the compiler,
so changes like these affect it more than they should.
R=lvd, dave, gustavo
CC=golang-dev
https://golang.org/cl/4954043
8g/cgen.c:
8g/gobj.c
. dropped unnecessary assignments;
8g/gg.h
. added varargckk pragmas;
8g/ggen.c
. dropped duplicate assignment;
8g/gsubr.c
. adjusted format in print statement;
. dropped unnecessary assignment;
. replaced GCC's _builtin_return_address(0) with Plan 9's
getcallerpc(&n) which is defined as a macro in <u.h>;
8g/list.c
. adjusted format in snprint statement;
8g/opt.h
. added varargck pragma (Adr*) that is specific for the invoking
modules;
8g/peep.c
. dropped unnecessary incrementation;
R=rsc
CC=golang-dev
https://golang.org/cl/4974044
The fix is to add ' ' after ';' so that we match
what we used to generate.
Packages like http look for the string with
the space in it, and I don't see a reason to
be so terse.
Also s/buffer/b/
TBR=bradfitz
CC=golang-dev
https://golang.org/cl/4959044
Doing a socket/listen on an unspecified address with an unspecified
address family is likely to result in an AF_INET6 socket on an IPv6
capable system, which under OpenBSD means IPv6 only - not IPv4 *and*
IPv6. In this case trying to connect to this socket from an IPv4
loopback address is not going to end well.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4807057
When the encoder was updated to respect the ",omitempty"
struct tag options, the decoder half was never updated to know
about the new struct tag format. (the format is now an optional
name, followed by zero or more ",option" strings)
This only affected people who used ",omitempty" along with
a field name. In that case, the serialized JSON wouldn't
decode to the original value.
R=golang-dev, dvyukov
CC=golang-dev
https://golang.org/cl/4965049
This introduces new APIs.
- DialConfig can open client connection using Config, so user can specify protocol version, tls.Config if necessary.
- Message can be used to send/receive text/binary data in a frame.
- JSON can be used to send/receive JSON data in a frame.
R=golang-dev, adg, rsc, m, tarmigan, raul.san, yohcop
CC=golang-dev
https://golang.org/cl/4635084
Write to image.*.Pix directly in the case of RGB, RGBA and NRGBA
images. For the latter two, the file format matches the memory layout
so a simple copy can be used.
RGB image before/after:
tiff.BenchmarkDecoder 748137 ns/op (62.39 MB/s) 251256 ns/op (185.76 MB/s) x3.0
NRGBA image before/after:
tiff.BenchmarkDecoder 775540 ns/op (80.12 MB/s) 116721 ns/op (532.34 MB/s) x6.6
R=nigeltao
CC=golang-dev
https://golang.org/cl/4929046
- implemented stand-alone Throttle mechanism
- added new flag -index_throttle to godoc
- index throttling enables index creation when running
godoc on app engine as it keeps godoc responsive
R=rsc, dsymonds, adg
CC=golang-dev
https://golang.org/cl/4963043
This fixes goinstall so it doesn't try to install unneeded
packages or get confused with non-existent loops.
R=golang-dev, adg, gustavo
CC=golang-dev
https://golang.org/cl/4958046
This makes decimal a good test
case for the escape analysis.
With escape analysis:
benchmark old ns/op new ns/op delta
BenchmarkAtof64Decimal 1954 243 -87.56%
BenchmarkAtof64Float 2008 293 -85.41%
BenchmarkAtof64FloatExp 10106 8814 -12.78%
BenchmarkAtof64Big 5113 3486 -31.82%
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4861042
#include "go.h" (or "gg.h")
becomes
#include <u.h>
#include <libc.h>
#include "go.h"
so that go.y can #include <stdio.h>
after <u.h> but before "go.h".
This is necessary on Plan 9.
R=ken2
CC=golang-dev
https://golang.org/cl/4971041
The following testcases now pass:
`<a href=x` tests that we do not error on partial unquoted attrs.
`<a href=x ` tests that spaces do end unquoted attrs on spaces.
`<a href=''` tests that we recognize the end of single quoted attrs.
`<a href=""` tests that we recognize the end of double quoted attrs.
R=golang-dev, nigeltao
CC=golang-dev
https://golang.org/cl/4932051
Pow10 failed for MinInt32 (endless loop until out of
memory). Fix by returning 0 and +Inf for all arguments
where the result is not representable in a float64.
Fixes#2159.
R=rsc
CC=golang-dev
https://golang.org/cl/4930041
For now it's switch-on-and-offable with -s, and the effects can be inspected
with -m. Defaults are the old codepaths.
R=rsc
CC=golang-dev
https://golang.org/cl/4634073
My theory is that suse has larger TCP buffer sizes
by default. I now check over 100MB, rather than over 2MB.
100MB is ~halfway between the 1MB limit and the 200MB
request that's attempted.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4926048
This allows code that wants to handle
[]byte separately to get at the actual slice
instead of just at individual bytes.
It seems to come up often enough.
R=r
CC=golang-dev
https://golang.org/cl/4942051
A side-effect is that, just like foo_386.go
is only built on 386, foo_386_test.go is only
built for testing on 386.
R=adg, r, mattn.jp
CC=golang-dev
https://golang.org/cl/4942050
The kludge is targeted at broken web browsers
like Chrome and IE, but it gets in the way of
sending 400 or 500-series error results with
formatted bodies in response to AJAX requests
made by pages executing in those browsers.
Now the AJAX cases will work and Chrome
and IE will be as broken with Go servers as
they are with all the other servers.
Fixes#2169.
R=bradfitz, dsymonds
CC=golang-dev
https://golang.org/cl/4930047
CL 4938041 made some incorrect changes to the filter
function which caused a different doc/codelab/wiki/index.html
file to be generated.
Added FilterFileExports and FilterPackageExports function.
Same as the existing FileExpors/PackageExports functions
but using shared code. The old functions will be removed
in the next CL.
R=r, rsc
CC=golang-dev
https://golang.org/cl/4932048
When a line directive was encountered we would push a new 'z' entry into
the history to indicate the start of new file attributation, and a 'Z'
entry to change line numbering. However we didn't pop the 'z' entry, so
we were actually corrupting the history stack. The most obvious
occurance of this was in the code that build the symbol tables for the
DWARF information - where an internal stack in the linker would overflow
when more than a few line directives were encountered in a single stack
(Issue 1878). So now we pop the 'z' entry when we encounter the end of
the file that the directive was in, which maintains the history stack
integrity.
Also, although new 'z' entries for new files had relative paths
expanded, the same was not done for line directives. Now we do it for
line directives also - so that the now correct DWARF information has the
full path available.
Fixes#1878.
R=rsc
CC=golang-dev
https://golang.org/cl/4938042
Introduce extra scope for the variable declared by a
TypeSwitchGuard so that it doesn't conflict with vars
declared by the initial SimpleStmt of a type switch.
This is a replacement for CL 4896053 which caused
a build breakage.
Also:
- explicitly detect type switches (as opposed to detecting
expression switches and then do extra testing for type switches)
- fix all outstanding TODOs in parser.go
- ran all tests
R=rsc
CC=golang-dev
https://golang.org/cl/4914044
This adds http.MaxBytesReader, similar to io.LimitReader,
but specific to http, and for preventing a class of DoS
attacks.
This also makes the 10MB ParseForm limit optional (if
not already set by a MaxBytesReader), documents it,
and also adds "PUT" as a valid verb for parsing forms
in the request body.
Improves issue 2093 (DoS protection)
Fixes#2165 (PUT form parsing)
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4921049
Make the stack traces more readable for new
Go programmers while preserving their utility for old hands.
- Change status number [4] to string.
- Elide frames in runtime package (internal details).
- Swap file:line and arguments.
- Drop 'created by' for main goroutine.
- Show goroutines in order of allocation:
implies main goroutine first if nothing else.
There is no option to get the extra frames back.
Uncomment 'return 1' at the bottom of symtab.c.
$ 6.out
throw: all goroutines are asleep - deadlock!
goroutine 1 [chan send]:
main.main()
/Users/rsc/g/go/src/pkg/runtime/x.go:22 +0x8a
goroutine 2 [select (no cases)]:
main.sel()
/Users/rsc/g/go/src/pkg/runtime/x.go:11 +0x18
created by main.main
/Users/rsc/g/go/src/pkg/runtime/x.go:19 +0x23
goroutine 3 [chan receive]:
main.recv(0xf8400010a0, 0x0)
/Users/rsc/g/go/src/pkg/runtime/x.go:15 +0x2e
created by main.main
/Users/rsc/g/go/src/pkg/runtime/x.go:20 +0x50
goroutine 4 [chan receive (nil chan)]:
main.recv(0x0, 0x0)
/Users/rsc/g/go/src/pkg/runtime/x.go:15 +0x2e
created by main.main
/Users/rsc/g/go/src/pkg/runtime/x.go:21 +0x66
$
$ 6.out index
panic: runtime error: index out of range
goroutine 1 [running]:
main.main()
/Users/rsc/g/go/src/pkg/runtime/x.go:25 +0xb9
$
$ 6.out nil
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x22ca]
goroutine 1 [running]:
main.main()
/Users/rsc/g/go/src/pkg/runtime/x.go:28 +0x211
$
$ 6.out panic
panic: panic
goroutine 1 [running]:
main.main()
/Users/rsc/g/go/src/pkg/runtime/x.go:30 +0x101
$
R=golang-dev, qyzhai, n13m3y3r, r
CC=golang-dev
https://golang.org/cl/4907048
The Go version has 64 character long section names; originally,
in Plan 9, the limit was 16. To provide compatibility, this
change allows the input length to be either the target length
or the earlier option. The section name is extended with spaces
where required.
This has been tested to work without regressions in the
Go environment, testing the older alternative has not been
possible yet.
R=rsc
CC=golang-dev
https://golang.org/cl/4650071
Add support for syscalls on openbsd amd64. This is based on the
existing freebsd amd64 implementation.
R=mikioh.mikioh, rsc, yourcomputerpal
CC=golang-dev
https://golang.org/cl/4798060
The EXTERN lines in elf.h already define these.
That's not a problem for most C compilers, but
apparently it is for some copies of the OS X linker.
Fixes#2167.
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/4936044
ast.FilterFile(src, ast.IsExported) has the same
effect as ast.FileExports(src) with this change.
1st step towards removing FileExports - it is
just a special case of FilterFile with this CL.
Added corresponding test.
R=r
CC=golang-dev
https://golang.org/cl/4938041
maketables.go/tables.go
- Properly set combinesForward flag for JamoL and JamoV.
- Fixed Printf bug.
composition.go
- Make insertString use the same control flow as insert.
- Better Hangul and non-Hangul mixing.
forminfo.go
- Fixed bug in compBoundaryBefore that affected a few esoteric cases.
- Buffer overflow now tested in normalize_test.go (other CL).
R=r
CC=golang-dev
https://golang.org/cl/4924041
- templates should be read before any handlers are started
- for app engine use, must use underlying file system to read templates
R=r
CC=golang-dev
https://golang.org/cl/4928042
In the process, rewrite index.go to use slices instead
of vectors, rewrite for-loops into range loops, and
generally simplify code (this code was written before
the launch of go and showed its age).
Also, fix a wrong import in appinit.go.
No significant performance changes (improvements);
most of time is spent elsewhere (measured on an stand-
alone MacBook Pro with SSD disk, running standard
godoc settings: godoc -v -http=:7777 -index).
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4875056
ParseMediaType previously documented that it always returned
a non-nil map, but also documented that it returned a nil map
to signal an error.
That is confusing, contradictory and not Go-like.
Now it returns (mediatype string, params map, os.Error).
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4867054
The subtle AST changes introduced with CL 4896053
broke type checking of type switches in gofix.
Coming up with a correct fix will take some time.
Undoing this change for now.
««« original CL description
go/parser: fix type switch scoping
The variable declared by a TypeSwitchGuard must be
visible in each TypeCaseClause and must not conflict
with other variables declared by the initial SimpleStmt
of a type switch.
Also:
- explicitly detect type switches (as opposed to detecting
regular (expression switches) and then do extra testing
for type switches
- fix all outstanding TODOs in parser.go
R=rsc
CC=golang-dev
https://golang.org/cl/4896053
»»»
R=rsc
CC=golang-dev
https://golang.org/cl/4902052
The variable declared by a TypeSwitchGuard must be
visible in each TypeCaseClause and must not conflict
with other variables declared by the initial SimpleStmt
of a type switch.
Also:
- explicitly detect type switches (as opposed to detecting
regular (expression switches) and then do extra testing
for type switches
- fix all outstanding TODOs in parser.go
R=rsc
CC=golang-dev
https://golang.org/cl/4896053
This CL changes both JoinGroup and LeaveGroup methods
to take an interface as an argument for enabling IPv6
group address join/leave, join a group address on a
specific interface.
R=rsc, dave
CC=golang-dev
https://golang.org/cl/4815074
Allocate Defer on stack during cgo calls, as suggested
by dvyukov. Also includes some comment corrections.
benchmark old,ns/op new,ns/op
BenchmarkCgoCall 669 330
(Intel Xeon CPU 1.80GHz * 4, Linux 386)
R=dvyukov, rsc
CC=golang-dev
https://golang.org/cl/4910041
This defines just enough context to distinguish HTML URI attributes
from parsed character data.
It does not affect any public module API as I thought I would get
early comment on style for defining enumerations and tables.
R=rsc, r, nigeltao, r
CC=golang-dev
https://golang.org/cl/4906043
All tests enabled by default passes except those in timeout_test.go.
For TestLookupPort, add an entry for "bootps" in /lib/ndb/common
(Plan 9 calls it "bootp"). I've sent out a patch to fix this.
R=paulzhol, rsc, mikioh.mikioh
CC=ality, golang-dev
https://golang.org/cl/4779041
forminfo.go:
- Wrappers for table data.
- Per Form dispatch table.
composition.go:
- reorderBuffer type. Implements decomposition, reordering, and composition.
- Note: decompose and decomposeString fields in formInfo could be replaced by
a pointer to the trie for the respective form. The proposed design makes
testing easier, though.
normalization.go:
- Temporarily added panic("not implemented") methods to make the tests run.
These will be removed again with the next CL, which will introduce the
implementation.
R=r, rogpeppe, mpvl, rsc
CC=golang-dev
https://golang.org/cl/4875043
Replaces the toy func Reverse(*Template) with one that implements
naive autoescaping.
Now Escape(*Template) walks a template parse tree to find all
template actions and adds the |html command to them if it is not
already present.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4867049
It's already in old/template; make that build.
Update a couple of references to point to the old template.
They can be updated later.
Update goplay to use exp/template.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4902046
This is just moving the URL code from package http into its own package,
which has been planned for a while.
Besides clarity, this also breaks a nascent dependency cycle the new template
package was about to introduce.
Add a gofix module, url, and use it to generate changes outside http and url.
Sadness about the churn, gladness about some of the naming improvements.
R=dsymonds, bradfitz, rsc, gustavo, r
CC=golang-dev
https://golang.org/cl/4893043
Multicast address handling is not consistent across all BSDs. Move
the multicast address handling code into OS dependent files. This
will be needed for OpenBSD support.
R=mikioh.mikioh, golang-dev
CC=golang-dev
https://golang.org/cl/4809074
The corruption can occur when GOMAXPROCS
is changed from >1 to 1, since GOMAXPROCS=1
does not imply there is only 1 goroutine running,
other goroutines can still be not parked after
the change.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4873050
When the C API being used includes multiple names for the same
underlying symbol (e.g. multiple #define's for the same variable), then
cgo will generate the same placeholder variables for each name. This
then prevents the code from compiling due to multiple declarations of
the same variable - so change cgo to only create one instance of the
variable for the underlying symbol.
R=rsc
CC=golang-dev
https://golang.org/cl/4826055
src/cmd/5c/reg.c:
. Added USED() attribute.
src/cmd/6c/cgen.c:
. Revised code around "REGARG" to resemble use in "8c" and
consequently remove a warning.
src/cmd/6l/asm.c:
. Added USED() attributes.
. Removed an unnecessary assignment.
R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/4836045
Currently it's possible to write:
var s rpc.Server
...
// reuse for my own purposes
s.Lock()
...
s.Unlock()
which is seemingly not intended.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4888049
This is useful for applications that want to micromanage the rpc service.
Moved part of ServeCodec into a new readRequest function.
Renamed existing readRequest to readRequestHeader, and reordered
its parameters to align with the new readRequest and service.call.
R=golang-dev, r, rsc, sougou
CC=golang-dev, msolomon
https://golang.org/cl/4889043
Do this by adding a fake package called builtin. At the moment, godoc will
not present this documentation because the function names are all lower case,
but there are plans to address this.
The print and println functions are undocumented here. I could be talked
into doing them but I'd rather not promote their use.
R=dsymonds, n13m3y3r, r, gri, rsc
CC=golang-dev
https://golang.org/cl/4907041
CL 4873048 introduced the ability to build without hg and
getting an "unknown" version. While this approach works
to avoid the hg dependency, it also means that every
exported tree that is built without hg or .hg will have not
only missing information, but will also be compatible to
one another. Considering that it is a common practice to
remove the VCS data in distributions, I suggest we don't
take this approach to avoid its consequences.
This CL fixes the same problem in a different way: if a
VERSION file at the top of the tree exists, use it at
all times. If it doesn't, fall back to using information
from hg necessarily, and fail if that's not possible. The
error message when VERSION and hg are not available
instructs users to handle it properly.
The VERSION file can be generated with
"src/version.bash -save" while hg is still around.
R=golang-dev, rsc, gustavo
CC=golang-dev
https://golang.org/cl/4897043
This was initially pushed as part of CL 4876046, found
when logic in exp/template was using the method on
an Invalid value.
R=rsc
CC=golang-dev
https://golang.org/cl/4890043
First step of moving exp/template into template: save the old code.
Code is unedited except for target name in Makefile.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4893042
While using exp/template in practice, the syntax for
indexing values using the "index" action was found to be
very inconvenient for frequent use when handling dynamic
data from maps such as the ones used with json and yaml,
that use a type like map[string]interface{}.
For these kinds of maps, the default handling of fields as
{{.Field}} makes the task of handling the several references
significantly more pleasant and elegant, and is equivalent
to what's currently done in the "template" package and in
other external packages (e.g. mustache).
Even with this change, the index action is still relevant
as it allows indexing maps in other scenarios where keys
wouldn't be valid field names.
R=golang-dev, r, gustavo
CC=golang-dev
https://golang.org/cl/4898043
This avoids a non-obvious panic when range is used on a
nil interface, and fixes it by behaving as if the range
was empty.
The new behavior is equivalent to the outcome of iterating
on a nil map or slice, and is useful because it allows
generic structures such as used in json (map[string]interface{})
to behave correctly if a key generally set to a list or map
isn't present.
R=golang-dev, r, gustavo
CC=golang-dev
https://golang.org/cl/4876046
Since the posLink_url also adds a non-URL attribute, the quoting and URL-escaping
must happen inside posLink_url (otherwise the non-URL attribute becomes part or the
URL portion of the tag.
R=r
CC=golang-dev
https://golang.org/cl/4888041
- rename template funcs for better consistency and
sort them into groups of related functionality
- try to be more consistent with html vs url escaping
R=r
CC=golang-dev
https://golang.org/cl/4887041
- simplified pipelines
- simplified templates by using template variables
- converted most old-style formatters into new-style funcs
- fixed some escaping bugs (use of url escaping where it was missing)
R=r, dsymonds
CC=golang-dev
https://golang.org/cl/4868044
func Reverse(*Template) *Template
returns a template that produces the reverse of the original
for any input.
Changes outside exp/template/html include:
- Adding a getter for a template's FuncMap so that derived templates
can inherit function definitions.
- Exported one node factory function, newIdentifier.
Deriving tempaltes requires constructing new nodes, but I didn't
export all of them because I think shallow copy functions might
be more useful for this kind of work.
- Bugfix: Template's Name() method ignores the name field so
template.New("foo") is a nil dereference instead of "foo".
Caveats: Reverse is a toy. It is not UTF-8 safe, and does not
preserve order of calls to funcs in FuncMap.
For context, see http://groups.google.com/group/golang-nuts/browse_thread/thread/e8bc7c771aae3f20/b1ac41dc6f609b6e?lnk=gst
R=rsc, r, nigeltao, r
CC=golang-dev
https://golang.org/cl/4808089
- first step; rough conversion of all template files
- there is plenty of opportunity for cleanups/simplifications (next CLs)
- html and text output as before
R=r, dsymonds
CC=golang-dev
https://golang.org/cl/4852048
This continues the work in revision 914a659b44ff, now passing more test
cases. As before, the new tokenization tests match html5lib's behavior.
Fixes#2124.
R=dsymonds, r
CC=golang-dev
https://golang.org/cl/4867042
IMPORTANT: Previous usage of *Files will continue to compile
fine but misbehave since the interface is compatible.
The following functions have been renamed:
ParseFiles => ParseGlob
ParseFile => ParseFiles
ParseSetFiles => ParseSetGlob
ParseSetFile => ParseSetFiles
ParseTemplateFiles => ParseTemplateGlob
ParseTemplateFile => ParseTemplateFiles
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4867041
Fixes#2140.
The http.DefaultTransport's RoundTrip method leaves the http.Request object
in an altered state after performing the round trip. This patch removes
the header from the Request before returning to the client.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4857041
- triegen.go: Factored out trie generation code from maketables.go
(only renamed printTrieTables to printTables and made it a method).
- maketesttables.go: new tool to generate data for the trie unit test.
- Makefile: changed accordingly.
- trie.go: trie lookup code.
- trietest_data.go: generated by maketesttables.go.
- trie_test.go: unit test for trie.go.
R=r
CC=golang-dev
https://golang.org/cl/4844053
- triegen.go: Factored out trie generation code from maketables.go
(only renamed printTrieTables to printTables and made it a method).
- maketesttables.go: new tool to generate data for the trie unit test.
- Makefile: changed accordingly.
- trie.go: trie lookup code.
- trietest_data.go: generated by maketesttables.go.
- trie_test.go: unit test for trie.go.
R=r
CC=golang-dev
https://golang.org/cl/4844053
Every time we enter callback from Windows, it is
possible that go exception handler is not at the top
of per-thread exception handlers chain. So it needs
to be installed again. At this moment this is done
by replacing top SEH frame with SEH frame as at time
of syscall for the time of callback. This is incorrect,
because, if exception strike, we won't be able to call
any exception handlers installed inside syscall,
because they are not in the chain. This changes
procedure to add new SEH frame on top of existing
chain instead.
I also removed m sehframe field, because I don't
think it is needed. We use single global exception
handler everywhere.
R=golang-dev, r
CC=golang-dev, hectorchu
https://golang.org/cl/4832060
Mostly a mechanical change, with a few cleanups to make the split easier.
The external interface to exp/template is unaffected.
In another round I will play with the function map setup to see if I can
avoid exposing reflect across the boundary, but that will require some
structural changes I did not want to mix into this CL.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4849049
The mmap system call varies across BSDs. Move mmap and munmap into
the operating system dependent files. This will be needed to add
syscall support for OpenBSD.
R=rsc
CC=golang-dev
https://golang.org/cl/4822056
Add support for the go runtime on openbsd/amd64. This is based on
the existing freebsd runtime.
Threads are implemented using OpenBSD's rthreads, which are currently
disabled by default, however can be enabled via the kern.rthreads
sysctl.
For now, cgo is disabled.
R=rsc
CC=golang-dev
https://golang.org/cl/4815067
The change adds specialized type algorithms
for slices and types of size 8/16/32/64/128.
It significantly accelerates chan and map operations
for most builtin types as well as user structs.
benchmark old,ns/op new,ns/op
BenchmarkChanUncontended 226 94
(on Intel Xeon E5620, 2.4GHz, Linux 64 bit)
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4815087
calling filepath.FromSlash(x) make invalid character to serve file.
Fixes#2128
R=golang-dev, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/4810064
This CL enables to list the multicast, joined group addresses
for a specific interface by using Interface.MulticastAddrs
method.
R=rsc
CC=golang-dev
https://golang.org/cl/4808062
The test case input is "<!DOCTYPE html><span><button>foo</span>bar".
The correct parse is:
| <!DOCTYPE html>
| <html>
| <head>
| <body>
| <span>
| <button>
| "foobar"
R=gri
CC=golang-dev
https://golang.org/cl/4794063
Before this change, syscall package would load
all dlls used anywhere in the go tree on startup.
For example, this program:
package main
import "fmt"
func main() {
fmt.Printf("Hello world\n")
}
would load these dlls
kernel32.dll
advapi32.dll
shell32.dll
wsock32.dll
ws2_32.dll
dnsapi.dll
iphlpapi.dll
Most of these dlls are network related and are not used
in this program. Now the same program loads only
kernel32.dll
shell32.dll
This decreases start times somewhat.
This also relaxes the rules of which dlls can be included
in the standard library. We could now include system calls
that are not available on all versions of Windows, because
we could decide if we should call them during runtime.
R=rsc, vcc.163
CC=golang-dev
https://golang.org/cl/4815046
The data race can lead to reads of partially
initialized concurrently mutated symbol data.
The change also adds a simple sanity test
for Caller() and FuncForPC().
R=rsc
CC=golang-dev
https://golang.org/cl/4817058
Not all BSDs have the same pipe() syscall implementation - move the Darwin/FreeBSD specific implementation into their respective OS syscall files. This will be needed to add OpenBSD syscall support.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4823057
- create a pair of "Must" functions, one for templates, one for sets
- regularize the return values of the parsers so they can be wrapped by Must
- delete all the old Must functions and methods.
R=golang-dev, gri, r
CC=golang-dev
https://golang.org/cl/4826052
serveFile was using absolute redirects, which didn't work under StripPrefix.
Now it uses relative redirects.
R=golang-dev, rsc, bradfitz
CC=golang-dev, kevlar
https://golang.org/cl/4789042
This brings them into line with the Template.MustParse* methods
and makes it possible to use them in global variable initializations.
R=r
CC=golang-dev
https://golang.org/cl/4798059
The RowsPerStrip tag is mandatory according to the spec. However,
Mac OS sometimes (?) omits it. I managed to create such an image
by applying "tiffutil -none" on a compressed image.
If RowsPerStrip is 0, there was a division by zero in the decoder.
Assume that the image is a single strip in this case.
R=nigeltao, bradfitz
CC=golang-dev
https://golang.org/cl/4815061
Hurray!
Also fix the mystical U+0345 COMBINING GREEK YPOGEGRAMMENI,
so everyone is satisfied.
Also add a -local flag to use local files for faster turnaround
when debugging.
R=rsc
CC=golang-dev
https://golang.org/cl/4825054
Undo CL 4254056 now that enough time has elapsed
that people with old trees have all built and removed
those files (which are no longer generated in that location).
Fixes#1581.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4802059
We must keep memory used by syscall.WSARecvFrom away from
garbage collector until after overlapped call is completed.
Fixes#2094.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4817050
ld/data.c:
. Format specifier with corresponding cast to cater for all
architectures (llux and vlong).
ld/ldelf.c:
ld/ldmacho.c:
. Missing "pn" argument in diag() calls.
ld/ldpe.c:
. Dropped "sym->sectnum" in diag() call.
. Typo in a comment.
ld/lib.h:
. Added varargck pragma for "O".
R=rsc
CC=golang-dev
https://golang.org/cl/4749042
When rnd is called with a second argument of 1, it simply
returns the first argument anyway.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4820045
