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package com.jclark.xsl.tr;
import com.jclark.xsl.om.*;
import com.jclark.xsl.expr.VariantExpr;
import com.jclark.xsl.expr.Variant;
import com.jclark.xsl.expr.ExprContext;
import java.util.Hashtable;
abstract class ParamAction implements Action {
private Name[] paramNames = null;
private VariantExpr[] paramExprs = null;
void addParam(Name name, VariantExpr expr) {
if (paramNames == null) {
paramNames = new Name[]{name};
paramExprs = new VariantExpr[]{expr};
}
else {
Name[] oldParamNames = paramNames;
paramNames = new Name[oldParamNames.length + 1];
System.arraycopy(oldParamNames, 0, paramNames, 0, oldParamNames.length);
paramNames[oldParamNames.length] = name;
VariantExpr[] oldParamExprs = paramExprs;
paramExprs = new VariantExpr[oldParamExprs.length + 1];
System.arraycopy(oldParamExprs, 0, paramExprs, 0, oldParamExprs.length);
paramExprs[oldParamExprs.length] = expr;
}
}
Name[] getParamNames() {
return paramNames;
}
Variant[] getParamValues(Node sourceNode, ExprContext context) throws XSLException {
if (paramExprs == null)
return null;
Variant[] paramValues = new Variant[paramExprs.length];
for (int i = 0; i < paramValues.length; i++)
paramValues[i] = paramExprs[i].eval(sourceNode, context).makePermanent();
return paramValues;
}
}
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