Class DefaultedArgumentExpression

  • All Implemented Interfaces:
    ExportAgent, Locatable, IdentityComparable, Traceable
    Direct Known Subclasses:

    public class DefaultedArgumentExpression
    extends PseudoExpression
    DefaultedArgumentExpression is a placeholder used in a function call for an argument that is evaluated using the default value expression from the function definition, in cases where that expression has not yet been compiled (typically because the function call precedes the function declaration). It should be resolved to a real expression during type checking of the function call.
    • Constructor Detail

      • DefaultedArgumentExpression

        public DefaultedArgumentExpression()
    • Method Detail

      • copy

        public Expression copy​(RebindingMap rebindings)
        Copy an expression. This makes a deep copy.
        Specified by:
        copy in class Expression
        rebindings - variables that need to be re-bound
        the copy of the original expression
      • getExpressionName

        public java.lang.String getExpressionName()
        Get a name identifying the kind of expression, in terms meaningful to a user.
        getExpressionName in class Expression
        a name identifying the kind of expression, in terms meaningful to a user. The name will always be in the form of a lexical XML QName, and should match the name used in export() output displaying the expression.
      • export

        public void export​(ExpressionPresenter destination)
                    throws XPathException
        Diagnostic print of expression structure. The abstract expression tree is written to the supplied output destination.
        Specified by:
        export in interface ExportAgent
        Specified by:
        export in class Expression
        destination - the expression presenter used to display the structure
        XPathException - if the export fails, for example if an expression is found that won't work in the target environment.