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Effective Go: IntArray -> IntSlice

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Fixes #2336.

R=golang-dev, dsymonds, rsc
CC=golang-dev
https://golang.org/cl/5222042
This commit is contained in:
Rob Pike 2011-10-06 10:46:18 -07:00
parent 417c42218f
commit 029c9bcb8b
2 changed files with 10 additions and 10 deletions
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10
doc/effective_go.html
View File

@ -1871,7 +1871,7 @@ do create a new value.)
It's an idiom in Go programs to convert the
type of an expression to access a different
set of methods. As an example, we could use the existing
type <code>sort.IntArray</code> to reduce the entire example
type <code>sort.IntSlice</code> to reduce the entire example
to this:
</p>
<pre>
@ -1879,14 +1879,14 @@ type Sequence []int
// Method for printing - sorts the elements before printing
func (s Sequence) String() string {
sort.IntArray(s).Sort()
sort.IntSlice(s).Sort()
return fmt.Sprint([]int(s))
}
</pre>
<p>
Now, instead of having <code>Sequence</code> implement multiple
interfaces (sorting and printing), we're using the ability of a data item to be
converted to multiple types (<code>Sequence</code>, <code>sort.IntArray</code>
converted to multiple types (<code>Sequence</code>, <code>sort.IntSlice</code>
and <code>[]int</code>), each of which does some part of the job.
That's more unusual in practice but can be effective.
</p>
@ -2081,8 +2081,8 @@ func ArgServer(w http.ResponseWriter, req *http.Request) {
<p>
<code>ArgServer</code> now has same signature as <code>HandlerFunc</code>,
so it can be converted to that type to access its methods,
just as we converted <code>Sequence</code> to <code>IntArray</code>
to access <code>IntArray.Sort</code>.
just as we converted <code>Sequence</code> to <code>IntSlice</code>
to access <code>IntSlice.Sort</code>.
The code to set it up is concise:
</p>
<pre>

10
doc/effective_go.tmpl
View File

@ -1809,7 +1809,7 @@ do create a new value.)
It's an idiom in Go programs to convert the
type of an expression to access a different
set of methods. As an example, we could use the existing
type <code>sort.IntArray</code> to reduce the entire example
type <code>sort.IntSlice</code> to reduce the entire example
to this:
</p>
<pre>
@ -1817,14 +1817,14 @@ type Sequence []int
// Method for printing - sorts the elements before printing
func (s Sequence) String() string {
sort.IntArray(s).Sort()
sort.IntSlice(s).Sort()
return fmt.Sprint([]int(s))
}
</pre>
<p>
Now, instead of having <code>Sequence</code> implement multiple
interfaces (sorting and printing), we're using the ability of a data item to be
converted to multiple types (<code>Sequence</code>, <code>sort.IntArray</code>
converted to multiple types (<code>Sequence</code>, <code>sort.IntSlice</code>
and <code>[]int</code>), each of which does some part of the job.
That's more unusual in practice but can be effective.
</p>
@ -2019,8 +2019,8 @@ func ArgServer(w http.ResponseWriter, req *http.Request) {
<p>
<code>ArgServer</code> now has same signature as <code>HandlerFunc</code>,
so it can be converted to that type to access its methods,
just as we converted <code>Sequence</code> to <code>IntArray</code>
to access <code>IntArray.Sort</code>.
just as we converted <code>Sequence</code> to <code>IntSlice</code>
to access <code>IntSlice.Sort</code>.
The code to set it up is concise:
</p>
<pre>