From cc2503f49e9fa445290740ebd11f1222431f5bd9 Mon Sep 17 00:00:00 2001
From: Hans Bolinder <hasse@erlang.org>
Date: Wed, 26 Oct 2016 13:46:06 +0200
Subject: erts: Correct type declaration of match specification head
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Bug reported by Peti Gömöri <gomoripeti@gmail.com>.
---
 erts/doc/src/erlang.xml | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'erts/doc/src/erlang.xml')

diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index b0d25389fd..9646953518 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -9529,6 +9529,10 @@ timestamp() ->
       <type name="trace_info_item_result"/>
       <type name="trace_info_flag"/>
       <type name="trace_match_spec"/>
+      <type name="match_variable"/>
+      <type_desc name="match_variable">
+        Approximation of '$1' | '$2' | '$3' | ...
+      </type_desc>
       <desc>
         <p>Returns trace information about a port, process, function, or
           event.</p>
@@ -9660,6 +9664,10 @@ timestamp() ->
       </fsummary>
       <type name="trace_pattern_mfa"/>
       <type name="trace_match_spec"/>
+      <type_desc name="match_variable">
+        Approximation of '$1' | '$2' | '$3' | ...
+      </type_desc>
+      <type name="match_variable"/>
       <desc>
         <p>The same as
           <seealso marker="#trace_pattern/3">
@@ -9672,6 +9680,10 @@ timestamp() ->
       <name name="trace_pattern" arity="3" clause_i="1"/>
       <fsummary>Set trace pattern for message sending.</fsummary>
       <type name="trace_match_spec"/>
+      <type name="match_variable"/>
+      <type_desc name="match_variable">
+        Approximation of '$1' | '$2' | '$3' | ...
+      </type_desc>
       <desc>
         <p>Sets trace pattern for <em>message sending</em>.
           Must be combined with
@@ -9739,6 +9751,10 @@ timestamp() ->
       <name name="trace_pattern" arity="3" clause_i="2"/>
       <fsummary>Set trace pattern for tracing of message receiving.</fsummary>
       <type name="trace_match_spec"/>
+      <type name="match_variable"/>
+      <type_desc name="match_variable">
+        Approximation of '$1' | '$2' | '$3' | ...
+      </type_desc>
       <desc>
         <p>Sets trace pattern for <em>message receiving</em>.
           Must be combined with
@@ -9809,6 +9825,10 @@ timestamp() ->
       <type name="trace_pattern_mfa"/>
       <type name="trace_match_spec"/>
       <type name="trace_pattern_flag"/>
+      <type name="match_variable"/>
+      <type_desc name="match_variable">
+        Approximation of '$1' | '$2' | '$3' | ...
+      </type_desc>
       <desc>
         <p>Enables or disables <em>call tracing</em> for one or more functions.
           Must be combined with
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