Adapted FunctionBase template to accept multiple argument types

* FunctionBase::argument_tuple is a std::tuple specialization type specialized on the argument types passed inside the variadic template argument of FunctionBase
* added tuple Mapper and XObjectValue helper namespaces containing recursive tuple construction and XObjectPtr value extraction logic
* changed all external function implementations accordingly
* this change was implemented to uniformly support different external function argument types than std::string

1 files changed, 3 insertions, 3 deletions

diff --git a/src/function/transform.cc b/src/function/transform.cc
index 5c53044..be06037 100644
--- a/src/function/transform.cc
+++ b/src/function/transform.cc
@@ -11,14 +11,14 @@ namespace InputXSLT {
 
 xercesc::DOMDocument* FunctionTransform::constructDocument(
 	const InputXSLT::FilesystemContext& fsContext,
-	const FunctionBase::argument_array& arguments
+	const FunctionBase::argument_tuple& arguments
 ) {
 	const boost::filesystem::path transformationPath(
-		fsContext.resolve(arguments[0])
+		fsContext.resolve(std::get<0>(arguments))
 	);
 
 	const boost::filesystem::path targetPath(
-		fsContext.resolve(arguments[1])
+		fsContext.resolve(std::get<1>(arguments))
 	);
 
 	xercesc::DOMDocument* const domDocument(