question: test whether a system function with a given name and arity is available , and return its signature . this supports the function-available function in xslt . this method may be called either at compile time or at run time . concode_field_sep List libraryList concode_field_sep Expression bind concode_elem_sep int addFunctionLibrary concode_elem_sep FunctionLibrary get concode_elem_sep List getLibraryList concode_elem_sep XQueryFunction getDeclaration concode_elem_sep FunctionLibrary copy
target: SequenceType [ ] function ( StructuredQName arg0 , int arg1 ) { for ( Iterator loc0 = libraryList . iterator ( ) ; loc0 . hasNext ( ) ; ) { FunctionLibrary loc1 = ( FunctionLibrary ) loc0 . next ( ) ; SequenceType [ ] loc2 = loc1 . getFunctionSignature ( arg0 , arg1 ) ; if ( loc2 != null ) { return loc2 ; } } return null ; }