expressionsBySyntax = new java.util.HashMap();

            java.util.List expressions = getExpressions();

            if ( expressions != null && !expressions.isEmpty() )
            {
                for ( java.util.Iterator it = expressions.iterator(); it.hasNext(); )
                {
                    Expression expr = (Expression) it.next();

                    expressionsBySyntax.put( expr.getSyntax(), expr );

    <description> This is the MavenProject instance for the parent of the current POM.
    </description>
  </expression>
  <expression>
    <syntax>project.file</syntax>
    <description> This is the File instance that refers to the location of the current POM on
      disk.
    </description>
  </expression>
  <expression>
    <syntax>project.artifacts</syntax>
    <configuration>
      <![CDATA[
<dependencies>
  ...

}

func (s Select) MergeClause(clause *Clause) {
	if s.Expression != nil {
		if s.Distinct {
			if expr, ok := s.Expression.(Expr); ok {
				expr.SQL = "DISTINCT " + expr.SQL
				clause.Expression = expr
				return
			}
		}

		clause.Expression = s.Expression
	} else {
		clause.Expression = s
	}
}

// CommaExpression represents a group of expressions separated by commas.
type CommaExpression struct {

        // call entry and if so we resolve the constructor callee expression.
        val userType = expression.parent as? KtUserType ?: return expression
        val typeReference = userType.parent as? KtTypeReference ?: return expression
        val constructorCalleeExpression = typeReference.parent as? KtConstructorCalleeExpression ?: return expression

        }
    }

    override fun isDefinitelyNull(expression: KtExpression): Boolean {
        val unwrapped = expression.unwrapParenthesesLabelsAndAnnotations() as? KtElement ?: return false
        val bindingContext = analysisContext.analyze(expression, AnalysisMode.PARTIAL)

        if (bindingContext[BindingContext.SMARTCAST_NULL, expression] == true) {
            return true
        }

        patchIfNeeded(expression.symbol) { expression.symbol = it }
        patchIfNeeded(expression.getter) { expression.getter = it }
        patchIfNeeded(expression.setter) { expression.setter = it }
        super.visitPropertyReference(expression)
    }

    override fun visitFunctionReference(expression: IrFunctionReference) {
        patchIfNeeded(expression.symbol) { expression.symbol = it }

    override fun evaluate(
        expression: KtExpression,
        mode: KtConstantEvaluationMode,
    ): KtConstantValue? {
        val bindingContext = analysisContext.analyze(expression)

        val constant = ConstantExpressionEvaluator.getPossiblyErrorConstant(expression, bindingContext)
        if (mode == KtConstantEvaluationMode.CONSTANT_EXPRESSION_EVALUATION) {

import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluationException;
import org.codehaus.plexus.component.configurator.expression.TypeAwareExpressionEvaluator;

/**
 * Evaluator for plugin parameters expressions. Content surrounded by <code>${</code> and <code>}</code> is evaluated.
 * Recognized values are:
 * <table border="1">
 * <caption>Expression matrix</caption>

        public Object getValue(String expression) {
            Object value = valueSource.getValue(expression);

            if (value != null && expression.startsWith(bannedPrefix)) {
                String msg = "The expression ${" + expression + "} is deprecated.";
                if (newPrefix != null && !newPrefix.isEmpty()) {
                    msg += " Please use ${" + newPrefix + expression.substring(bannedPrefix.length()) + "} instead.";

        List<Expression> expressions = documentation.getExpressions();

        Map<String, Expression> bySyntax = new HashMap<>();

        if (expressions != null && !expressions.isEmpty()) {
            for (Expression expression : expressions) {
                bySyntax.put(expression.getSyntax(), expression);
            }
        }

        return bySyntax;
    }