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authorAnthony Ramine <[email protected]>2012-11-12 10:07:37 +0100
committerAnthony Ramine <[email protected]>2013-12-12 12:54:24 +0100
commita929df291877df45c93303d22995bbbebf6a2c45 (patch)
tree036a9ee74bc9f1f30f9378795e8b235b462b8212 /erts/doc
parenta0988a638a92211ae0af6ec35ca99edfc05110aa (diff)
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Document named fun expressions
Diffstat (limited to 'erts/doc')
-rw-r--r--erts/doc/src/absform.xml12
1 files changed, 12 insertions, 0 deletions
diff --git a/erts/doc/src/absform.xml b/erts/doc/src/absform.xml
index 55aef9f8ab..4acc03b133 100644
--- a/erts/doc/src/absform.xml
+++ b/erts/doc/src/absform.xml
@@ -290,6 +290,18 @@
<item>If E is <c><![CDATA[fun Fc_1 ; ... ; Fc_k end]]></c>
where each <c><![CDATA[Fc_i]]></c> is a function clause then Rep(E) =
<c><![CDATA[{'fun',LINE,{clauses,[Rep(Fc_1), ..., Rep(Fc_k)]}}]]></c>.</item>
+ <item>If E is <c><![CDATA[fun Name Fc_1 ; ... ; Name Fc_k end]]></c>
+ where <c><![CDATA[Name]]></c> is a variable and each
+ <c><![CDATA[Fc_i]]></c> is a function clause then Rep(E) =
+ <c><![CDATA[{named_fun,LINE,Name,[Rep(Fc_1), ..., Rep(Fc_k)]}]]></c>.
+ </item>
+ <item>If E is <c><![CDATA[query [E_0 || W_1, ..., W_k] end]]></c>,
+ where each <c><![CDATA[W_i]]></c> is a generator or a filter, then
+ Rep(E) = <c><![CDATA[{'query',LINE,{lc,LINE,Rep(E_0),[Rep(W_1), ..., Rep(W_k)]}}]]></c>.
+ For Rep(W), see below.</item>
+ <item>If E is <c><![CDATA[E_0.Field]]></c>, a Mnesia record access
+ inside a query, then
+ Rep(E) = <c><![CDATA[{record_field,LINE,Rep(E_0),Rep(Field)}]]></c>.</item>
<item>If E is <c><![CDATA[( E_0 )]]></c>, then
Rep(E) = <c><![CDATA[Rep(E_0)]]></c>,
i.e., parenthesized expressions cannot be distinguished from their bodies.</item>