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authorBjörn Gustavsson <bjorn@erlang.org>2010-05-26 15:50:59 +0200
committerBjörn Gustavsson <bjorn@erlang.org>2011-11-02 12:12:30 +0100
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treed7a8dfa400f0eb894f4343dc9cf74c67b8b54b2f /system/doc/reference_manual
parentb9e610cf12419c6ffe2c19df4f70009bd98ae50c (diff)
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Reference manual: Improve the documentation for external funs
Diffstat (limited to 'system/doc/reference_manual')
-rw-r--r--system/doc/reference_manual/code_loading.xml4
-rw-r--r--system/doc/reference_manual/expressions.xml7
2 files changed, 7 insertions, 4 deletions
diff --git a/system/doc/reference_manual/code_loading.xml b/system/doc/reference_manual/code_loading.xml
index f56e1ff408..3ea72a4057 100644
--- a/system/doc/reference_manual/code_loading.xml
+++ b/system/doc/reference_manual/code_loading.xml
@@ -112,8 +112,8 @@ loop() ->
<c>code_switch</c> to it. The process then will make a fully
qualified call to <c>m:loop()</c> and change to current code.
Note that <c>m:loop/0</c> must be exported.</p>
- <p>For code replacement of funs to work, the tuple syntax
- <c>{Module,FunctionName}</c> must be used to represent the fun.</p>
+ <p>For code replacement of funs to work, the syntax
+ <c>fun Module:FunctionName/Arity</c> should be used.</p>
</section>
<section>
diff --git a/system/doc/reference_manual/expressions.xml b/system/doc/reference_manual/expressions.xml
index c24b1110a4..4d211ae1d3 100644
--- a/system/doc/reference_manual/expressions.xml
+++ b/system/doc/reference_manual/expressions.xml
@@ -995,13 +995,16 @@ fun (Arg1,...,ArgN) -> Name(Arg1,...,ArgN) end</pre>
<p>In <c>Module:Name/Arity</c>, <c>Module</c> and <c>Name</c> are atoms
and <c>Arity</c> is an integer.
A fun defined in this way will refer to the function <c>Name</c>
- with arity <c>Arity</c> in the <em>latest</em> version of module <c>Module</c>.
+ with arity <c>Arity</c> in the <em>latest</em> version of module
+ <c>Module</c>. A fun defined in this way will not be dependent on
+ the code for module in which it is defined.
</p>
<p>When applied to a number N of arguments, a tuple
<c>{Module,FunctionName}</c> is interpreted as a fun, referring
to the function <c>FunctionName</c> with arity N in the module
<c>Module</c>. The function must be exported.
- <em>This usage is deprecated.</em>
+ <em>This usage is deprecated.</em> Use <c>fun Module:Name/Arity</c>
+ instead.
See <seealso marker="#calls">Function Calls</seealso> for an example.</p>
<p>More examples can be found in <em>Programming Examples</em>.</p>
</section>