Method get

basex-core/src/main/java/org/basex/query/func/Functions.java:83–106

Creates a function call or a function item expression. @param qnm function name @param fb function arguments @param qc query context @return function call @throws QueryException query exception

(final QNm qnm, final FuncBuilder fb, final QueryContext qc)

   * @throws QueryException query exception
   */
  public static Expr get(final QNm qnm, final FuncBuilder fb, final QueryContext qc)
      throws QueryException {

    // partial function call?
    if(fb.placeholders > 0) return dynamic(item(qnm, fb.arity, false, fb.info, qc), fb);

    final QNm name = funcName(qnm, fb.arity, fb.info, qc);

    // constructor function
    if(eq(name.uri(), XS_URI)) return constructorCall(name, fb);

    // built-in function
    final FuncDefinition fd = builtIn(name);
    if(fd != null) {
      final int min = fd.minMax[0], max = fd.minMax[1];
      final Expr[] prepared = prepareArgs(fb, fd.params, min, max, fd);
      final StandardFunc sf = fd.get(fb.info, prepared);
      if(sf.hasUPD()) qc.updating();
      return sf;
    }

    // user-defined function
    return staticCall(name, fb, qc);
  }

  /**
   * Creates a dynamic function call or a partial function expression.