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package com.sun.tools.txw2.model;
import com.sun.codemodel.JDefinedClass;
import com.sun.tools.txw2.model.prop.Prop;
import com.sun.xml.txw2.TypedXmlWriter;
import java.util.HashSet;
import java.util.Set;
/**
* A named pattern.
*
* @author Kohsuke Kawaguchi
*/
public class Define extends WriterNode {
public final Grammar scope;
public final String name;
JDefinedClass clazz;
public Define(Grammar scope, String name) {
super(null,null);
if(scope==null) scope = (Grammar)this; // hack for start pattern
this.scope = scope;
this.name = name;
assert name!=null;
}
/**
* Returns true if this define only contains
* one child (and thus considered inlinable.)
*
* A pattern definition is also inlineable if
* it's the start of the grammar (because "start" isn't a meaningful name)
*/
public boolean isInline() {
return hasOneChild() || name==Grammar.START;
}
void declare(NodeSet nset) {
if(isInline()) return;
clazz = nset.createClass(name);
clazz._implements(TypedXmlWriter.class);
}
void generate(NodeSet nset) {
if(clazz==null) return;
HashSet props = new HashSet();
for( Leaf l : this )
l.generate(clazz,nset,props);
}
void generate(JDefinedClass clazz, NodeSet nset, Set props) {
if(isInline()) {
for( Leaf l : this )
l.generate(clazz,nset, props);
} else {
assert this.clazz!=null;
clazz._implements(this.clazz);
}
}
void prepare(NodeSet nset) {
if(isInline() && leaf instanceof WriterNode && !name.equals(Grammar.START))
((WriterNode)leaf).alternativeName = name;
}
public String toString() {
return "Define "+name;
}
}
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