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SimpleNodeConstructorCompiler
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SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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com.saxonica.bytecode</FONT>
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Class SimpleNodeConstructorCompiler</H2>
<PRE>
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html" title="class in com.saxonica.bytecode">com.saxonica.bytecode.ExpressionCompiler</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../com/saxonica/bytecode/ToIteratorCompiler.html" title="class in com.saxonica.bytecode">com.saxonica.bytecode.ToIteratorCompiler</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../com/saxonica/bytecode/ToPushCompiler.html" title="class in com.saxonica.bytecode">com.saxonica.bytecode.ToPushCompiler</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.saxonica.bytecode.SimpleNodeConstructorCompiler</B>
</PRE>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../com/saxonica/bytecode/CommentCompiler.html" title="class in com.saxonica.bytecode">CommentCompiler</A>, <A HREF="../../../com/saxonica/bytecode/NamespaceConstructorCompiler.html" title="class in com.saxonica.bytecode">NamespaceConstructorCompiler</A>, <A HREF="../../../com/saxonica/bytecode/ProcessingInstructionCompiler.html" title="class in com.saxonica.bytecode">ProcessingInstructionCompiler</A>, <A HREF="../../../com/saxonica/bytecode/ValueOfCompiler.html" title="class in com.saxonica.bytecode">ValueOfCompiler</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public abstract class <B>SimpleNodeConstructorCompiler</B><DT>extends <A HREF="../../../com/saxonica/bytecode/ToPushCompiler.html" title="class in com.saxonica.bytecode">ToPushCompiler</A></DL>
</PRE>
<P>
<HR>
<P>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<A NAME="constructor_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Constructor Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../com/saxonica/bytecode/SimpleNodeConstructorCompiler.html#SimpleNodeConstructorCompiler()">SimpleNodeConstructorCompiler</A></B>()</CODE>
<BR>
</TD>
</TR>
</TABLE>
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<B>Method Summary</B></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/saxonica/bytecode/SimpleNodeConstructorCompiler.html#checkContent(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">checkContent</A></B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)</CODE>
<BR>
Compile code to check the content of the node, and adjust it if necessary
On entry the proposed content is on the stack as a CharSequence; on exit the revised content
must be on the stack as a CharSequence.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/saxonica/bytecode/SimpleNodeConstructorCompiler.html#compileNodeName(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileNodeName</A></B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)</CODE>
<BR>
Compile code to generate the node name (if any) and leave it on the top of the stack.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/saxonica/bytecode/SimpleNodeConstructorCompiler.html#compileToItem(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileToItem</A></B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)</CODE>
<BR>
Generate bytecode to evaluate the expression as an Item
Precondition: none.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/saxonica/bytecode/SimpleNodeConstructorCompiler.html#compileToPush(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileToPush</A></B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)</CODE>
<BR>
Generate bytecode to evaluate the expression in push mode
Precondition: none.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/saxonica/bytecode/SimpleNodeConstructorCompiler.html#isNamedNodeKind()">isNamedNodeKind</A></B>()</CODE>
<BR>
Ask whether this instruction generates a kind of node that is named</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/saxonica/bytecode/SimpleNodeConstructorCompiler.html#isNoNodeIfEmpty(net.sf.saxon.expr.Expression)">isNoNodeIfEmpty</A></B>(<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expr)</CODE>
<BR>
Overridable method to ask whether no node should be produced in the case that the content is empty</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected abstract void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/saxonica/bytecode/SimpleNodeConstructorCompiler.html#pushNode(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">pushNode</A></B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)</CODE>
<BR>
Generate code to write the node to the current receiver.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_com.saxonica.bytecode.ToPushCompiler"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class com.saxonica.bytecode.<A HREF="../../../com/saxonica/bytecode/ToPushCompiler.html" title="class in com.saxonica.bytecode">ToPushCompiler</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../com/saxonica/bytecode/ToPushCompiler.html#compileToIterator(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileToIterator</A></CODE></TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_com.saxonica.bytecode.ToIteratorCompiler"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class com.saxonica.bytecode.<A HREF="../../../com/saxonica/bytecode/ToIteratorCompiler.html" title="class in com.saxonica.bytecode">ToIteratorCompiler</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../com/saxonica/bytecode/ToIteratorCompiler.html#compileToBoolean(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileToBoolean</A></CODE></TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_com.saxonica.bytecode.ExpressionCompiler"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class com.saxonica.bytecode.<A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html" title="class in com.saxonica.bytecode">ExpressionCompiler</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#allocateStatic(com.saxonica.bytecode.util.CompilerService, java.lang.Object)">allocateStatic</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#compileItemFromInt(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileItemFromInt</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#compileItemFromString(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileItemFromString</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#compileToLoop(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression, com.saxonica.bytecode.util.LoopBodyGenerator)">compileToLoop</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#compileToPrimitive(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression, java.lang.Class, com.saxonica.bytecode.util.OnEmpty)">compileToPrimitive</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#generateMethod(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression, org.objectweb.asm.ClassVisitor)">generateMethod</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#getConfiguration()">getConfiguration</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#handleEmptyStringResult(com.saxonica.bytecode.util.OnEmpty, com.saxonica.bytecode.util.Generator, com.saxonica.bytecode.util.GeneratedMethodInfo, com.saxonica.bytecode.util.LabelInfo)">handleEmptyStringResult</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#setConfiguration(net.sf.saxon.Configuration)">setConfiguration</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#throwXPathException(com.saxonica.bytecode.util.CompilerService, com.saxonica.bytecode.util.MessageBuilder, java.lang.String, javax.xml.transform.SourceLocator, boolean)">throwXPathException</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#throwXPathException(com.saxonica.bytecode.util.CompilerService, java.lang.String, java.lang.String, javax.xml.transform.SourceLocator, boolean)">throwXPathException</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#unboxItem(com.saxonica.bytecode.util.Generator, java.lang.Class)">unboxItem</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#verify(org.objectweb.asm.ClassWriter, java.lang.String, boolean)">verify</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#visitAnnotation(com.saxonica.bytecode.util.CompilerService, java.lang.String)">visitAnnotation</A>, <A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#visitLineNumber(com.saxonica.bytecode.util.CompilerService, com.saxonica.bytecode.util.Generator, net.sf.saxon.expr.Expression)">visitLineNumber</A></CODE></TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
</TR>
</TABLE>
<P>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="SimpleNodeConstructorCompiler()"><!-- --></A><H3>
SimpleNodeConstructorCompiler</H3>
<PRE>
public <B>SimpleNodeConstructorCompiler</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="compileToPush(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)"><!-- --></A><H3>
compileToPush</H3>
<PRE>
public void <B>compileToPush</B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)
throws <A HREF="../../../com/saxonica/bytecode/util/CannotCompileException.html" title="class in com.saxonica.bytecode.util">CannotCompileException</A></PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#compileToPush(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">ExpressionCompiler</A></CODE></B></DD>
<DD>Generate bytecode to evaluate the expression in push mode
Precondition: none.
Postcondition: at execution time, the stack is unchanged, and the value of the expression has been
written to the current receiver
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../com/saxonica/bytecode/ToIteratorCompiler.html#compileToPush(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileToPush</A></CODE> in class <CODE><A HREF="../../../com/saxonica/bytecode/ToIteratorCompiler.html" title="class in com.saxonica.bytecode">ToIteratorCompiler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>compiler</CODE> - the compiler service<DD><CODE>expression</CODE> - the expression to be compiled
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../com/saxonica/bytecode/util/CannotCompileException.html" title="class in com.saxonica.bytecode.util">CannotCompileException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="isNoNodeIfEmpty(net.sf.saxon.expr.Expression)"><!-- --></A><H3>
isNoNodeIfEmpty</H3>
<PRE>
protected boolean <B>isNoNodeIfEmpty</B>(<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expr)</PRE>
<DL>
<DD>Overridable method to ask whether no node should be produced in the case that the content is empty
<P>
<DD><DL>
<DT><B>Returns:</B><DD>true if the rules for this instruction are that when the content is empty, no node is generated</DL>
</DD>
</DL>
<HR>
<A NAME="checkContent(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)"><!-- --></A><H3>
checkContent</H3>
<PRE>
protected void <B>checkContent</B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)</PRE>
<DL>
<DD>Compile code to check the content of the node, and adjust it if necessary
On entry the proposed content is on the stack as a CharSequence; on exit the revised content
must be on the stack as a CharSequence.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>compiler</CODE> - <DD><CODE>expression</CODE> - </DL>
</DD>
</DL>
<HR>
<A NAME="compileNodeName(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)"><!-- --></A><H3>
compileNodeName</H3>
<PRE>
protected void <B>compileNodeName</B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)
throws <A HREF="../../../com/saxonica/bytecode/util/CannotCompileException.html" title="class in com.saxonica.bytecode.util">CannotCompileException</A></PRE>
<DL>
<DD>Compile code to generate the node name (if any) and leave it on the top of the stack. For node kinds that
are always unnamed (such as comments), the stack is not changed. For node kinds that may be named or unnamed
(namespace nodes), an entry is always added to the stack, which will be "" if the particular node has
no name.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../com/saxonica/bytecode/util/CannotCompileException.html" title="class in com.saxonica.bytecode.util">CannotCompileException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="pushNode(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)"><!-- --></A><H3>
pushNode</H3>
<PRE>
protected abstract void <B>pushNode</B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)</PRE>
<DL>
<DD>Generate code to write the node to the current receiver. On entry the stack holds the
current receiver, the node name (for named node kinds only) and the content (for all nodes),
in general as instances of CharSequence
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>compiler</CODE> - <DD><CODE>expression</CODE> - </DL>
</DD>
</DL>
<HR>
<A NAME="isNamedNodeKind()"><!-- --></A><H3>
isNamedNodeKind</H3>
<PRE>
protected boolean <B>isNamedNodeKind</B>()</PRE>
<DL>
<DD>Ask whether this instruction generates a kind of node that is named
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="compileToItem(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)"><!-- --></A><H3>
compileToItem</H3>
<PRE>
public void <B>compileToItem</B>(<A HREF="../../../com/saxonica/bytecode/util/CompilerService.html" title="class in com.saxonica.bytecode.util">CompilerService</A> compiler,
<A HREF="../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression)
throws <A HREF="../../../com/saxonica/bytecode/util/CannotCompileException.html" title="class in com.saxonica.bytecode.util">CannotCompileException</A></PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../com/saxonica/bytecode/ExpressionCompiler.html#compileToItem(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">ExpressionCompiler</A></CODE></B></DD>
<DD>Generate bytecode to evaluate the expression as an Item
Precondition: none.
Postcondition: at execution time, the stack contains either an item (the result of the expression), or null
(representing an empty sequence).
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../com/saxonica/bytecode/ToPushCompiler.html#compileToItem(com.saxonica.bytecode.util.CompilerService, net.sf.saxon.expr.Expression)">compileToItem</A></CODE> in class <CODE><A HREF="../../../com/saxonica/bytecode/ToPushCompiler.html" title="class in com.saxonica.bytecode">ToPushCompiler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>compiler</CODE> - the compiler service<DD><CODE>expression</CODE> - the expression to be compiled
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../com/saxonica/bytecode/util/CannotCompileException.html" title="class in com.saxonica.bytecode.util">CannotCompileException</A></CODE></DL>
</DD>
</DL>
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