haXe XPath Documentation

class xpath.context.UnionEnvironment

Class implementing the union of two environments.

function new(primary : Environment, secondary : Environment) : Void: Constructs a new Environment which is the union of existing primary and secondary environments. Functions and variables which are defined by the primary environment override those which are defined by the secondary environment.
function callFunction(context : Context, name : String, ?parameters : Array<xpath.type.XPathValue>) : xpath.type.XPathValue: Calls a function with the specified parameters and returns the result.
function existsFunction(name : String) : Bool: Tests if a function with the specified name is provided by this environment.
function existsVariable(name : String) : Bool: Tests if a variable with the specified name is provided by this environment.
function getFunction(name : String) : xpath.type.XPathFunction: Returns a reference to the function with the specified name.
function getVariable(name : String) : xpath.type.XPathValue: Gets the value of the variable with the specified name.