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<title>Class ProgramEndCleanSyntax | HiAPI-C# 2025 </title>
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<meta name="description" content="Clears the per-block Vars.Volatile dictionary on blocks that triggered program end (M02 / M30, identified by the section written by ). Real Fanuc clears non-retained common variables (#100-#499) on program end + reset; this syntax models that behaviour at the simulator level. The clear happens on the same block that carried M02/M30 — the next block&#39;s carry then sees an empty dictionary on the predecessor and starts fresh. Pipeline placement: must run after both (which writes the section this syntax checks) and (so the carry has already happened on this block; this syntax overwrites the result). Retained common variables (#500-#999, owned by ) are untouched — they survive program end on real hardware (NV-RAM). Local variables (#1-#33, scope: macro call frame) are also untouched here; their lifecycle belongs to G65/G66/M99 push/pop, not program end. Also clears any active on the same edge: a G66 modal that was still active when M02/M30 hit is implicitly cancelled, matching real Fanuc reset behaviour. The section is overwritten with a G67-shaped cancel marker so the carry mechanism in sees the boundary and does not propagate the modal past the program-end edge.">
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<article data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax">
<h1 id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax" class="text-break">
Class ProgramEndCleanSyntax
</h1>
<div class="facts text-secondary">
<dl><dt>Namespace</dt><dd><a class="xref" href="Hi.html">Hi</a>.<a class="xref" href="Hi.NcParsers.html">NcParsers</a>.<a class="xref" href="Hi.NcParsers.LogicSyntaxs.html">LogicSyntaxs</a></dd></dl>
<dl><dt>Assembly</dt><dd>HiMech.dll</dd></dl>
</div>
<div class="markdown summary"><p>Clears the per-block <code>Vars.Volatile</code> dictionary on blocks that
triggered program end (M02 / M30, identified by the
<a class="xref" href="Hi.NcParsers.Keywords.ProgramEnd.html">ProgramEnd</a> section written by <a class="xref" href="Hi.NcParsers.LogicSyntaxs.ProgramEndSyntax.html">ProgramEndSyntax</a>).</p>
<p>
Real Fanuc clears non-retained common variables (#100-#499) on program
end + reset; this syntax models that behaviour at the simulator level.
The clear happens on the same block that carried M02/M30 — the next
block's <a class="xref" href="Hi.NcParsers.EvaluationSyntaxs.VolatileVariableReadingSyntax.html">VolatileVariableReadingSyntax</a> carry then sees an
empty dictionary on the predecessor and starts fresh.
</p>
<p>
Pipeline placement: must run after both <a class="xref" href="Hi.NcParsers.LogicSyntaxs.ProgramEndSyntax.html">ProgramEndSyntax</a>
(which writes the <a class="xref" href="Hi.NcParsers.Keywords.ProgramEnd.html">ProgramEnd</a> section this syntax checks)
and <a class="xref" href="Hi.NcParsers.EvaluationSyntaxs.VolatileVariableReadingSyntax.html">VolatileVariableReadingSyntax</a> (so the carry has
already happened on this block; this syntax overwrites the result).
</p>
<p>
Retained common variables (<code>#500-#999</code>, owned by
<a class="xref" href="Hi.NcParsers.Dependencys.Fanuc.RetainedCommonVariableTable.html">RetainedCommonVariableTable</a>) are
untouched — they survive program end on real hardware (NV-RAM).
Local variables (<code>#1-#33</code>, scope: macro call frame) are also
untouched here; their lifecycle belongs to G65/G66/M99 push/pop, not
program end.
</p>
<p>
Also clears any active <a class="xref" href="Hi.NcParsers.Keywords.FanucModalMacro.html">FanucModalMacro</a> on the same
edge: a G66 modal that was still active when M02/M30 hit is
implicitly cancelled, matching real Fanuc reset behaviour. The
section is overwritten with a <code>G67</code>-shaped cancel marker so
the carry mechanism in
<a class="xref" href="Hi.NcParsers.EvaluationSyntaxs.Fanuc.FanucModalMacroSyntax.html">FanucModalMacroSyntax</a> sees the boundary
and does not propagate the modal past the program-end edge.
</p>
</div>
<div class="markdown conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public class ProgramEndCleanSyntax : ISituNcSyntax, INcSyntax, IMakeXmlSource</code></pre>
</div>
<dl class="typelist inheritance">
<dt>Inheritance</dt>
<dd>
<div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
<div><span class="xref">ProgramEndCleanSyntax</span></div>
</dd>
</dl>
<dl class="typelist implements">
<dt>Implements</dt>
<dd>
<div><a class="xref" href="Hi.NcParsers.Syntaxs.ISituNcSyntax.html">ISituNcSyntax</a></div>
<div><a class="xref" href="Hi.NcParsers.Syntaxs.INcSyntax.html">INcSyntax</a></div>
<div><a class="xref" href="Hi.Common.XmlUtils.IMakeXmlSource.html">IMakeXmlSource</a></div>
</dd>
</dl>
<dl class="typelist inheritedMembers">
<dt>Inherited Members</dt>
<dd>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object)</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object, object)</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone">object.MemberwiseClone()</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object, object)</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.tostring">object.ToString()</a>
</div>
</dd></dl>
<dl class="typelist extensionMethods">
<dt>Extension Methods</dt>
<dd>
<div>
<a class="xref" href="Hi.Common.DuplicateUtil.html#Hi_Common_DuplicateUtil_TryDuplicate__1___0_System_Object___">DuplicateUtil.TryDuplicate&lt;TSelf&gt;(TSelf, params object[])</a>
</div>
<div>
<a class="xref" href="Hi.Common.InvokeUtil.html#Hi_Common_InvokeUtil_SelfInvoke__1___0_System_Action___0__">InvokeUtil.SelfInvoke&lt;TSrc&gt;(TSrc, Action&lt;TSrc&gt;)</a>
</div>
<div>
<a class="xref" href="Hi.Common.InvokeUtil.html#Hi_Common_InvokeUtil_SelfInvoke__2___0_System_Func___0___1__">InvokeUtil.SelfInvoke&lt;TSrc, TDst&gt;(TSrc, Func&lt;TSrc, TDst&gt;)</a>
</div>
<div>
<a class="xref" href="Hi.Coloring.ColorUtil.html#Hi_Coloring_ColorUtil_GetGloomyColor_System_Object_System_Double_System_Double_">ColorUtil.GetGloomyColor(object, double, double)</a>
</div>
<div>
<a class="xref" href="Hi.Common.NameUtil.html#Hi_Common_NameUtil_GetSelectionName_System_Object_">NameUtil.GetSelectionName(object)</a>
</div>
<div>
<a class="xref" href="Hi.Common.StringUtil.html#Hi_Common_StringUtil_GetPropertyStringIfToStringNotOverloaded_System_Object_System_Boolean_System_Boolean_">StringUtil.GetPropertyStringIfToStringNotOverloaded(object, bool, bool)</a>
</div>
<div>
<a class="xref" href="Hi.Parallels.LockUtil.html#Hi_Parallels_LockUtil_Lock_System_Object_">LockUtil.Lock(object)</a>
</div>
</dd></dl>
<h2 id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_examples">Examples</h2>
<p>M30 with a populated <code>Vars.Volatile</code> — the dictionary is wiped
to an empty <code>JsonObject</code> in place (assignment, not removal, so
downstream snapshots can distinguish &ldquo;cleared on program end&rdquo; from
&ldquo;block never had volatile data&rdquo;):
#BeforeBuild:</p>
<pre><code class="lang-csharp">{
"ProgramEnd": { "Term": "M30" },
"Vars": { "Volatile": { "#100": 1.5, "#101": 2.5 } }
}</code></pre>
<p>#AfterBuild:</p>
<pre><code class="lang-csharp">{
"ProgramEnd": { "Term": "M30" },
"Vars": { "Volatile": {} }
}</code></pre>
<p>M02 with an active G66 <a class="xref" href="Hi.NcParsers.Keywords.FanucModalMacro.html">FanucModalMacro</a> and no
pre-existing <code>Vars</code> — the modal is overwritten with a
<code>G67</code>-shaped cancel marker (P/L dropped), and a fresh
<code>Vars.Volatile</code> dictionary is created:
#BeforeBuild:</p>
<pre><code class="lang-csharp">{
"ProgramEnd": { "Term": "M02" },
"FanucModalMacro": { "Term": "G66", "P": 1234, "L": 1 }
}</code></pre>
<p>#AfterBuild:</p>
<pre><code class="lang-csharp">{
"ProgramEnd": { "Term": "M02" },
"FanucModalMacro": { "Term": "G67" },
"Vars": { "Volatile": {} }
}</code></pre>
<p>No <code>ProgramEnd</code> on the block (regular machining line) — the
guard rejects the block; <code>Vars.Volatile</code> is left intact for
downstream blocks to inherit via carry:
#BeforeBuild:</p>
<pre><code class="lang-csharp">{ "Vars": { "Volatile": { "#100": 1.5 } } }</code></pre>
<p>#AfterBuild:</p>
<pre><code class="lang-csharp">{ "Vars": { "Volatile": { "#100": 1.5 } } }</code></pre>
<h2 class="section" id="constructors">Constructors
</h2>
<a id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax__ctor_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.#ctor*"></a>
<h3 id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax__ctor" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.#ctor">
ProgramEndCleanSyntax()
</h3>
<div class="markdown level1 summary"><p>Default constructor.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public ProgramEndCleanSyntax()</code></pre>
</div>
<a id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax__ctor_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.#ctor*"></a>
<h3 id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax__ctor_System_Xml_Linq_XElement_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.#ctor(System.Xml.Linq.XElement)">
ProgramEndCleanSyntax(XElement)
</h3>
<div class="markdown level1 summary"><p>Loads from XML produced by <a class="xref" href="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.html#Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_MakeXmlSource_System_String_System_String_System_Boolean_">MakeXmlSource(string, string, bool)</a>; no state.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public ProgramEndCleanSyntax(XElement src)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>src</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.xml.linq.xelement">XElement</a></dt>
<dd></dd>
</dl>
<h2 class="section" id="properties">Properties
</h2>
<a id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_Name_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.Name*"></a>
<h3 id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_Name" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.Name">
Name
</h3>
<div class="markdown level1 summary"><p>Syntax kind name (typically the concrete type name).</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public string Name { get; }</code></pre>
</div>
<h4 class="section">Property Value</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
<dd></dd>
</dl>
<a id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_XName_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.XName*"></a>
<h3 id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_XName" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.XName">
XName
</h3>
<div class="markdown level1 summary"><p>XML element name for <a class="xref" href="Hi.Common.XmlUtils.XFactory.html#Hi_Common_XmlUtils_XFactory_Generators">Generators</a> registration.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static string XName { get; }</code></pre>
</div>
<h4 class="section">Property Value</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
<dd></dd>
</dl>
<h2 class="section" id="methods">Methods
</h2>
<a id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_Build_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.Build*"></a>
<h3 id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_Build_Hi_Common_Collections_LazyLinkedListNode_Hi_NcParsers_Syntaxs_SyntaxPiece__System_Collections_Generic_List_Hi_NcParsers_Dependencys_INcDependency__Hi_NcParsers_NcDiagnosticProgress_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.Build(Hi.Common.Collections.LazyLinkedListNode{Hi.NcParsers.Syntaxs.SyntaxPiece},System.Collections.Generic.List{Hi.NcParsers.Dependencys.INcDependency},Hi.NcParsers.NcDiagnosticProgress)">
Build(LazyLinkedListNode&lt;SyntaxPiece&gt;, List&lt;INcDependency&gt;, NcDiagnosticProgress)
</h3>
<div class="markdown level1 summary"><p>Build syntax arrangement into the
<code class="paramref">syntaxPieceNode</code> in-place.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public void Build(LazyLinkedListNode&lt;SyntaxPiece&gt; syntaxPieceNode, List&lt;INcDependency&gt; ncDependencyList, NcDiagnosticProgress ncDiagnosticProgress)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>syntaxPieceNode</code> <a class="xref" href="Hi.Common.Collections.LazyLinkedListNode-1.html">LazyLinkedListNode</a>&lt;<a class="xref" href="Hi.NcParsers.Syntaxs.SyntaxPiece.html">SyntaxPiece</a>&gt;</dt>
<dd></dd>
<dt><code>ncDependencyList</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1">List</a>&lt;<a class="xref" href="Hi.NcParsers.Dependencys.INcDependency.html">INcDependency</a>&gt;</dt>
<dd></dd>
<dt><code>ncDiagnosticProgress</code> <a class="xref" href="Hi.NcParsers.NcDiagnosticProgress.html">NcDiagnosticProgress</a></dt>
<dd></dd>
</dl>
<a id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_MakeXmlSource_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.MakeXmlSource*"></a>
<h3 id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_MakeXmlSource_System_String_System_String_System_Boolean_" data-uid="Hi.NcParsers.LogicSyntaxs.ProgramEndCleanSyntax.MakeXmlSource(System.String,System.String,System.Boolean)">
MakeXmlSource(string, string, bool)
</h3>
<div class="markdown level1 summary"><p>Creates an XML representation of the object.
This method may also generate additional resources such as related files.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public XElement MakeXmlSource(string baseDirectory, string relFile, bool exhibitionOnly)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>baseDirectory</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
<dd><p>The base directory for resolving relative paths</p>
</dd>
<dt><code>relFile</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
<dd><p>The relative file path for the XML source</p>
</dd>
<dt><code>exhibitionOnly</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.boolean">bool</a></dt>
<dd><p>if true, the extended file creation is suppressed.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.xml.linq.xelement">XElement</a></dt>
<dd><p>An XML element representing the object's state</p>
</dd>
</dl>
<h4 class="section" id="Hi_NcParsers_LogicSyntaxs_ProgramEndCleanSyntax_MakeXmlSource_System_String_System_String_System_Boolean__remarks">Remarks</h4>
<div class="markdown level1 remarks"><p>For the demand of easy moving source folder (especially project folder) without configuration file path corruption, the relative file path is applied.
The <code class="paramref">baseDirectory</code> is typically the folder at the nearest configuration file folder.
Since the folder can be moving with the configuration file.</p>
</div>
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