Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.

First time visiting? Here are some places to start:
  1. Looking for a certain topic? Check out the categories filter or use Search (upper right).
  2. Need support? Ask a question to our Community Support category.
  3. Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
  4. Be respectful, on topic and if you see a problem, Flag it.

If you would like to contact our Community Manager personally, feel free to send a private message or an email.

Cannot reference function Predicate as a variable.

EvanReeseEvanReese Member, Mentor Posts: 2,135 ✭✭✭✭✭
I'm trying to use a predicate I've imported and I'm getting this error and I don't know what it means. Anybody know what I might be doing wrong?
Evan Reese

Best Answer

  • ilya_baranilya_baran Onshape Employees, Developers, HDM Posts: 1,212
    Answer ✓
    You can't reference top-level functions or predicates in variables.  So:
    predicate isNonzero(something)
    {
       something != 0;
    }

    const myPredicate = isNonzero; // Error -- not allowed
    const myPredicate = function(something) { return isNonzero(something); }; // Ok
    Ilya Baran \ VP, Architecture and FeatureScript \ Onshape Inc

Answers

  • _anton_anton Member, Onshape Employees Posts: 410
    Is the predicate ever not followed by arguments in parentheses, like a function call?
  • ilya_baranilya_baran Onshape Employees, Developers, HDM Posts: 1,212
    Answer ✓
    You can't reference top-level functions or predicates in variables.  So:
    predicate isNonzero(something)
    {
       something != 0;
    }

    const myPredicate = isNonzero; // Error -- not allowed
    const myPredicate = function(something) { return isNonzero(something); }; // Ok
    Ilya Baran \ VP, Architecture and FeatureScript \ Onshape Inc
  • EvanReeseEvanReese Member, Mentor Posts: 2,135 ✭✭✭✭✭
    Got it, thanks guys!
    Evan Reese
Sign In or Register to comment.