File: FunctionOpt1.java

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lib-xt-java 0.19990725-1
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package com.jclark.xsl.expr;

import com.jclark.xsl.om.NamespacePrefixMap;

abstract class FunctionOpt1 implements Function {
  abstract ConvertibleExpr makeCallExpr(ConvertibleExpr e) throws ParseException;

  public ConvertibleExpr makeCallExpr(ConvertibleExpr e[], NamespacePrefixMap prefixMap) throws ParseException {
    if (e.length > 1)
      throw new ParseException("expected zero or one argument");
    return makeCallExpr(e.length == 0 ? new SelfAxisExpr() : e[0]);
  }
}