[BUG]"{\"Err\":\"Invalid execution context JSON: expected ident at line 1 column 2\"}"

[songzhiming]

`

struct AAA: Codable {
    var totalMoveGoalsMet: Int
}
class BB: HostContext {
    var aaa: AAA
    func computedProperty(name: String, args: String, callback: ResultCallback) {
        callback.onResult(result: aaa.totalMoveGoalsMet.string)
    }
        
    func deviceProperty(name: String, args: String, callback: ResultCallback) {
        callback.onResult(result: "")
    }     
}

func test()  {
    let str = evaluateWithContext(definition: "totalMoveGoalsMet == 3500", context: BB(aaa: AAA(totalMoveGoalsMet: 4000)))
} 

`
New issue checklist

• I have reviewed the README and documentation
• I have searched existing issues and this is not a duplicate
• I have attempted to reproduce the issue and include an example project.

General information

• Superwall version:
• iOS version(s):
• CocoaPods/Carthage version (if applicable):
• Xcode version:
• Devices/Simulators affected:
• Reproducible in the demo project? (Yes/No):
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Describe the bug

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[linear]

SW-4105

[songzhiming]

SW-4105
@linear

[yusuftor]

Hi, it looks like you're trying to use Superscript outside of Superwall. Can you explain more about why you want to do this?

[songzhiming]

https://github.com/superwall/Superscript-iOS ，I am using this library to parse CEL (Constraint Expression Language) expressions. @yusuftor

[yusuftor]

The issue is you're only passing in the expression to evaluate in the definition, rather than the whole context as a string, where the context looks like this:

struct ExecutionContext: Codable {
  let variables: PassableMap
  let computed: [String: [PassableValue]]
  let device: [String: [PassableValue]]
  let expression: String
}

Take a look at CELEvaluator.swift to see how we do it.

[songzhiming]

@yusuftor Thank you for your guidance, but I still don’t understand. Could you write a demo? What I actually want is something similar to the effect of NSPredicate or NSExpression.

        /// The object can be a struct or JSON.
        let object = ["count": 10]
        let predicate = NSPredicate(format: "count > 10")
        let result = predicate.evaluate(with: object)
        print("result----\(result)")   false
        
        
        let expression = NSExpression(format: "count + 1")
        let result1 = expression.expressionValue(with: object, context: nil)
    
        print("result1----\(result1)")  11