returns the result of interpreting the object as an instance of ` ocl expression ' . this implementation returns null ; returning a non-null result will terminate the switch . concode_field_sep QVTTemplatePackage modelPackage concode_field_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T caseTypedElement concode_elem_sep T caseObjectTemplateExp concode_elem_sep T caseObject concode_elem_sep T caseElement concode_elem_sep T caseTemplateExp concode_elem_sep T casePropertyTemplateItem concode_elem_sep T defaultCase concode_elem_sep T caseNamedElement concode_elem_sep T caseLiteralExp concode_elem_sep T caseCollectionTemplateExp
T function ( OclExpression arg0 ) { return null ; }