Meant as illustration of the Go pattern that is using
goroutines and channels to handle exceptional situations.
Note: There is no need for "Finally" since the
"try block" (the function f supplied to Try)
cannot do a Smalltalk-style non-local return
and terminate the function surrounding Try.
Replaces CL 157083.
R=r, rsc
https://golang.org/cl/157087
* add runtime sliceslice1 for x[lo:]
* remove runtime arraytoslice, rewriting &arr into arr[0:len(arr)].
* port cgen_inline into 8g, 5g.
* use native memmove in maps
R=ken2
https://golang.org/cl/157106
* reverse-complement: port C algorithm to Go
saves 30% on my MacBook Pro and makes it a fairer comparison.
* test reverse-complement with and without GC (another 15%)
* revise timing.sh to work on more systems
* avoid two glibcisms in fasta.c
R=r
https://golang.org/cl/156110
Allows the developer to pass a map either by itself for
evaluation, or inside a struct. Access to data inside
maps is identical to the current system for structs, ie.
-Psuedocode-
mp map[string]string = {
"header" : "A fantastic header!",
"footer" : "A not-so-fantastic footer!",
}
template.Execute(mp)
...can be accessed using {header} and {footer} in
the template. Similarly, for maps inside structs:
type s struct {
mp map[string]string,
}
s1 = new s
s1.mp["header"] = "A fantastic header!";
template.Execute(s1)
...is accessed using {mp.header}. Multi-maps, ie.
map[string](map[string]string) and maps of structs
containing more maps are unsupported, but then, I'm
not even sure if that's supported by the language.
Map elements can be of any type that can be written
by the formatters. Keys should really only be strings.
Fixes#259.
R=r, rsc
https://golang.org/cl/157088
There's no functional change here. io gives the Read and Write methods byte slice arguments, but tar called them uint8. It's the same thing, but I think this is clearer and it matches what other packages do.
R=rsc
CC=golang-dev
https://golang.org/cl/157099
1) if char class contains a single character, make it a single character.
(this is used to quote, e.g. [.] rather than \.
2) if regexp begins with ordinary text substring, use plain string match to start engine
R=rsc
CC=golang-dev
https://golang.org/cl/157095
No benchmarks are run unless the --benchmarks=<regexp> flag
is specified on the gotest command line. This change includes
sample benchmarks for regexp.
% gotest --benchmarks=.*
(standard test output redacted)
testing.BenchmarkSimpleMatch 200000 7799 ns/op
testing.BenchmarkUngroupedMatch 20000 76898 ns/op
testing.BenchmarkGroupedMatch 50000 38148 ns/op
R=r, rsc
https://golang.org/cl/154173
also pick off the special case in strings.Index. don't want strings.IndexByte
because the call site will very rarely need to allocate and we can handle the
test in the code itself. bytes.IndexByte can avoid a common allocation.
R=rsc
CC=golang-dev
https://golang.org/cl/156091
Previously a netFd could be queued for reading/writing in the channel,
but close(2)'ed before pollServer got to it. In this case, the kernel
would consider the descriptor closed and the attempt to add it to the
epoll set would fail and panic.
This patch makes Close a roundtrip to the pollServer, although the
actual close(2) still occurs elsewhere to avoid blocking the
pollServer.
Fixes#143.
R=rsc
CC=golang-dev
https://golang.org/cl/152130
