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doc/go1: template packages have changed since r60

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R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5787049
This commit is contained in:
Rob Pike 2012-03-08 17:15:23 +11:00
parent 2b8a7adde8
commit 1cd272d16a
2 changed files with 84 additions and 20 deletions
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52
doc/go1.html
View File

@ -883,7 +883,7 @@ This behavior was unpleasant and unportable.
In Go 1, the
<a href="/pkg/syscall/"><code>syscall</code></a>
package instead returns an <code>error</code> for system call errors.
On Unix, the implementation is done by a
On Unix, the implementation is done by a
<a href="/pkg/syscall/#Errno"><code>syscall.Errno</code></a> type
that satisfies <code>error</code> and replaces the old <code>os.Errno</code>.
</p>
@ -910,7 +910,7 @@ and no distinction between absolute times and durations.
<p>
One of the most sweeping changes in the Go 1 library is therefore a
complete redesign of the
complete redesign of the
<a href="/pkg/time/"><code>time</code></a> package.
Instead of an integer number of nanoseconds as an <code>int64</code>,
and a separate <code>*time.Time</code> type to deal with human
@ -1107,7 +1107,7 @@ to be implemented in the future.
No changes will be needed.
</p>
<h3 id="encoding_binary">The encoding/binary package</h3>
<h3 id="encoding_binary">The encoding/binary package</h3>
<p>
In Go 1, the <code>binary.TotalSize</code> function has been replaced by
@ -1253,7 +1253,7 @@ The <a href="/pkg/go/printer/"><code>go/printer</code></a> package supports an a
configuration mode <a href="/pkg/go/printer/#Mode"><code>SourcePos</code></a>;
if set, the printer will emit <code>//line</code> comments such that the generated
output contains the original source code position information. The new type
<a href="/pkg/go/printer/#CommentedNode"><code>CommentedNode</code></a> can be
<a href="/pkg/go/printer/#CommentedNode"><code>CommentedNode</code></a> can be
used to provide comments associated with an arbitrary
<a href="/pkg/go/ast/#Node"><code>ast.Node</code></a> (until now only
<a href="/pkg/go/ast/#File"><code>ast.File</code></a> carried comment information).
@ -1320,7 +1320,7 @@ to run-time errors.
<p>
In Go 1, the definition of <a href="/pkg/hash/#Hash"><code>hash.Hash</code></a> includes
a new method, <code>BlockSize</code>. This new method is used primarily in the
a new method, <code>BlockSize</code>. This new method is used primarily in the
cryptographic libraries.
</p>
@ -1506,7 +1506,7 @@ Running <code>go</code> <code>fix</code> will update almost all code affected by
<h3 id="log_syslog">The log/syslog package</h3>
<p>
In Go 1, the <a href="/pkg/log/syslog/#NewLogger"><code>syslog.NewLogger</code></a>
In Go 1, the <a href="/pkg/log/syslog/#NewLogger"><code>syslog.NewLogger</code></a>
function returns an error as well as a <code>log.Logger</code>.
</p>
@ -1521,7 +1521,7 @@ What little code is affected will be caught by the compiler and must be updated
In Go 1, the <a href="/pkg/mime/#FormatMediaType"><code>FormatMediaType</code></a> function
of the <code>mime</code> package has been simplified to make it
consistent with
<a href="/pkg/mime/#ParseMediaType"><code>ParseMediaType</code></a>.
<a href="/pkg/mime/#ParseMediaType"><code>ParseMediaType</code></a>.
It now takes <code>"text/html"</code> rather than <code>"text"</code> and <code>"html"</code>.
</p>
@ -1535,9 +1535,9 @@ What little code is affected will be caught by the compiler and must be updated
<p>
In Go 1, the various <code>SetTimeout</code>,
<code>SetReadTimeout</code>, and <code>SetWriteTimeout</code> methods
have been replaced with
have been replaced with
<a href="/pkg/net/#IPConn.SetDeadline"><code>SetDeadline</code></a>,
<a href="/pkg/net/#IPConn.SetReadDeadline"><code>SetReadDeadline</code></a>, and
<a href="/pkg/net/#IPConn.SetReadDeadline"><code>SetReadDeadline</code></a>, and
<a href="/pkg/net/#IPConn.SetWriteDeadline"><code>SetWriteDeadline</code></a>,
respectively. Rather than taking a timeout value in nanoseconds that
apply to any activity on the connection, the new methods set an
@ -1808,7 +1808,7 @@ The compiler will catch code using the old interface.
<p>
The <a href="/pkg/regexp/"><code>regexp</code></a> package has been rewritten.
It has the same interface but the specification of the regular expressions
It has the same interface but the specification of the regular expressions
it supports has changed from the old "egrep" form to that of
<a href="http://code.google.com/p/re2/">RE2</a>.
</p>
@ -1953,6 +1953,38 @@ a cast that must be added by hand; the <code>go</code> <code>fix</code> tool wil
</p>
<h3 id="templates">The template packages</h3>
<p>
The <code>template</code> and <code>exp/template/html</code> packages have moved to
<a href="/pkg/text/template/"><code>text/template</code></a> and
<a href="/pkg/html/template/"><code>html/template</code></a>.
More significant, the interface to these packages has been simplified.
The template language is the same, but the concept of "template set" is gone
and the functions and methods of the packages have changed accordingly,
often by elimination.
</p>
<p>
Instead of sets, a <code>Template</code> object
may contain multiple named template definitions,
in effect constructing
name spaces for template invocation.
A template can invoke any other template associated with it, but only those
templates associated with it.
The simplest way to associate templates is to parse them together, something
made easier with the new structure of the packages.
</p>
<p>
<em>Updating</em>:
The imports will be updated by fix tool.
Single-template uses will be otherwise be largely unaffected.
Code that uses multiple templates in concert will need to be updated by hand.
The <a href="/pkg/text/template/#examples">examples</a> in
the documentation for <code>text/template</code> can provide guidance.
</p>
<h3 id="testing">The testing package</h3>
<p>

52
doc/go1.tmpl
View File

@ -797,7 +797,7 @@ This behavior was unpleasant and unportable.
In Go 1, the
<a href="/pkg/syscall/"><code>syscall</code></a>
package instead returns an <code>error</code> for system call errors.
On Unix, the implementation is done by a
On Unix, the implementation is done by a
<a href="/pkg/syscall/#Errno"><code>syscall.Errno</code></a> type
that satisfies <code>error</code> and replaces the old <code>os.Errno</code>.
</p>
@ -824,7 +824,7 @@ and no distinction between absolute times and durations.
<p>
One of the most sweeping changes in the Go 1 library is therefore a
complete redesign of the
complete redesign of the
<a href="/pkg/time/"><code>time</code></a> package.
Instead of an integer number of nanoseconds as an <code>int64</code>,
and a separate <code>*time.Time</code> type to deal with human
@ -1011,7 +1011,7 @@ to be implemented in the future.
No changes will be needed.
</p>
<h3 id="encoding_binary">The encoding/binary package</h3>
<h3 id="encoding_binary">The encoding/binary package</h3>
<p>
In Go 1, the <code>binary.TotalSize</code> function has been replaced by
@ -1156,7 +1156,7 @@ The <a href="/pkg/go/printer/"><code>go/printer</code></a> package supports an a
configuration mode <a href="/pkg/go/printer/#Mode"><code>SourcePos</code></a>;
if set, the printer will emit <code>//line</code> comments such that the generated
output contains the original source code position information. The new type
<a href="/pkg/go/printer/#CommentedNode"><code>CommentedNode</code></a> can be
<a href="/pkg/go/printer/#CommentedNode"><code>CommentedNode</code></a> can be
used to provide comments associated with an arbitrary
<a href="/pkg/go/ast/#Node"><code>ast.Node</code></a> (until now only
<a href="/pkg/go/ast/#File"><code>ast.File</code></a> carried comment information).
@ -1223,7 +1223,7 @@ to run-time errors.
<p>
In Go 1, the definition of <a href="/pkg/hash/#Hash"><code>hash.Hash</code></a> includes
a new method, <code>BlockSize</code>. This new method is used primarily in the
a new method, <code>BlockSize</code>. This new method is used primarily in the
cryptographic libraries.
</p>
@ -1409,7 +1409,7 @@ Running <code>go</code> <code>fix</code> will update almost all code affected by
<h3 id="log_syslog">The log/syslog package</h3>
<p>
In Go 1, the <a href="/pkg/log/syslog/#NewLogger"><code>syslog.NewLogger</code></a>
In Go 1, the <a href="/pkg/log/syslog/#NewLogger"><code>syslog.NewLogger</code></a>
function returns an error as well as a <code>log.Logger</code>.
</p>
@ -1424,7 +1424,7 @@ What little code is affected will be caught by the compiler and must be updated
In Go 1, the <a href="/pkg/mime/#FormatMediaType"><code>FormatMediaType</code></a> function
of the <code>mime</code> package has been simplified to make it
consistent with
<a href="/pkg/mime/#ParseMediaType"><code>ParseMediaType</code></a>.
<a href="/pkg/mime/#ParseMediaType"><code>ParseMediaType</code></a>.
It now takes <code>"text/html"</code> rather than <code>"text"</code> and <code>"html"</code>.
</p>
@ -1438,9 +1438,9 @@ What little code is affected will be caught by the compiler and must be updated
<p>
In Go 1, the various <code>SetTimeout</code>,
<code>SetReadTimeout</code>, and <code>SetWriteTimeout</code> methods
have been replaced with
have been replaced with
<a href="/pkg/net/#IPConn.SetDeadline"><code>SetDeadline</code></a>,
<a href="/pkg/net/#IPConn.SetReadDeadline"><code>SetReadDeadline</code></a>, and
<a href="/pkg/net/#IPConn.SetReadDeadline"><code>SetReadDeadline</code></a>, and
<a href="/pkg/net/#IPConn.SetWriteDeadline"><code>SetWriteDeadline</code></a>,
respectively. Rather than taking a timeout value in nanoseconds that
apply to any activity on the connection, the new methods set an
@ -1693,7 +1693,7 @@ The compiler will catch code using the old interface.
<p>
The <a href="/pkg/regexp/"><code>regexp</code></a> package has been rewritten.
It has the same interface but the specification of the regular expressions
It has the same interface but the specification of the regular expressions
it supports has changed from the old "egrep" form to that of
<a href="http://code.google.com/p/re2/">RE2</a>.
</p>
@ -1838,6 +1838,38 @@ a cast that must be added by hand; the <code>go</code> <code>fix</code> tool wil
</p>
<h3 id="templates">The template packages</h3>
<p>
The <code>template</code> and <code>exp/template/html</code> packages have moved to
<a href="/pkg/text/template/"><code>text/template</code></a> and
<a href="/pkg/html/template/"><code>html/template</code></a>.
More significant, the interface to these packages has been simplified.
The template language is the same, but the concept of "template set" is gone
and the functions and methods of the packages have changed accordingly,
often by elimination.
</p>
<p>
Instead of sets, a <code>Template</code> object
may contain multiple named template definitions,
in effect constructing
name spaces for template invocation.
A template can invoke any other template associated with it, but only those
templates associated with it.
The simplest way to associate templates is to parse them together, something
made easier with the new structure of the packages.
</p>
<p>
<em>Updating</em>:
The imports will be updated by fix tool.
Single-template uses will be otherwise be largely unaffected.
Code that uses multiple templates in concert will need to be updated by hand.
The <a href="/pkg/text/template/#examples">examples</a> in
the documentation for <code>text/template</code> can provide guidance.
</p>
<h3 id="testing">The testing package</h3>
<p>