Method optimize

basex-core/src/main/java/org/basex/query/expr/Switch.java:61–73

(final CompileContext cc)

  }

  @Override
  public Expr optimize(final CompileContext cc) throws QueryException {
    cond = cond.simplifyFor(Simplify.STRING, cc);

    // check if expression can be pre-evaluated
    final Expr expr = opt(cc);
    if(expr != this) return cc.replaceWith(this, expr);

    // combine types of return expressions
    exprType.assign(SeqType.union(groups, true)).data(groups);

    return this;
  }

  @Override
  public Expr simplifyFor(final Simplify mode, final CompileContext cc) throws QueryException {