Revision control
++ <?xml version="1.0" encoding="UTF-8"?><!-- test that none of the system variables can be modified --><scxml xmlns="http://www.w3.org/2005/07/scxml" xmlns:conf="http://www.w3.org/2005/scxml-conformance" initial="s0" version="1.0" datamodel="ecmascript" name="machineName">
++ <datamodel>
++ <data id="Var1"/>
++ <data id="Var2"/>
++ <data id="Var3"/>
++ <data id="Var4"/>
++ </datamodel>
++
++ <state id="s0">
++ <onentry>
++ <!-- get _event bound so we can use it in s1-->
++ <raise event="foo"/>
++ <assign location="Var1" expr="_sessionid"/>
++ <assign location="_sessionid" expr="27"/>
++ </onentry>
++
++ <transition event="foo" cond="Var1==_sessionid" target="s1"/>
++ <transition event="*" target="fail"/>
++ </state>
++
++ <state id="s1">
++ <onentry>
++ <assign location="Var2" expr="_event"/>
++ <assign location="_event" expr="27"/>
++ </onentry>
++ <transition cond="Var2==_event" target="s2"/>
++ <transition target="fail"/>
++ </state>
++
++ <state id="s2">
++ <onentry>
++ <assign location="Var3" expr="_name"/>
++ <assign location="_name" expr="27"/>
++ </onentry>
++ <transition cond="Var3==_name" target="s3"/>
++ <transition target="fail"/>
++ </state>
++
++
++ <state id="s3">
++ <onentry>
++ <assign location="Var4" expr="_ioprocessors"/>
++ <assign location="_ioprocessors" expr="27"/>
++ </onentry>
++ <transition cond="Var4==_ioprocessors" target="pass"/>
++ <transition target="fail"/>
++ </state>
++
++
++ <final id="pass"><onentry><log label="Outcome" expr="'pass'"/></onentry></final>
++ <final id="fail"><onentry><log label="Outcome" expr="'fail'"/></onentry></final>
++
++ </scxml>