swiftwasm · kateinoigakukun · Sep 14, 2020 · Sep 13, 2020 · Sep 13, 2020 · j-f1
diff --git a/IntegrationTests/TestSuites/Sources/PrimaryTests/main.swift b/IntegrationTests/TestSuites/Sources/PrimaryTests/main.swift
@@ -394,3 +394,11 @@ try test("TypedArray_Mutation") {
    }
    try expectEqual(toString(array.jsValue().object!), jsStringify(Array(0..<100)))
 }
+
+try test("Error") {
+    let message = "test error"
+    let error = JSError(message: message)
+    try expectEqual(error.name, "Error")
+    try expectEqual(error.message, message)
+    try expectEqual(error.description, "Error: test error")
+}
diff --git a/Sources/JavaScriptKit/BasicObjects/JSError.swift b/Sources/JavaScriptKit/BasicObjects/JSError.swift
@@ -0,0 +1,20 @@
+public final class JSError {
+    private let ref: JSObject
+    private static let constructor = JSObject.global.Error.function!
+
+    public init(message: String) {
+        ref = Self.constructor.new([message])
+    }
+
+    public var message: String {
+        ref.message.string!
+    }
+
+    public var name: String {
+        ref.name.string!
+    }
+}
+
+extension JSError: CustomStringConvertible {
+    public var description: String { ref.description }
+}
diff --git a/Sources/JavaScriptKit/FundamentalObjects/JSObject.swift b/Sources/JavaScriptKit/FundamentalObjects/JSObject.swift
@@ -48,3 +48,6 @@ public class JSObject: Equatable {
    }
 }

+extension JSObject: CustomStringConvertible {
+    public var description: String { self.toString!().string! }
+}
-Original file line number
+Diff line change
@@ -0,0 +1,20 @@
+    public final class JSError {
+        private let ref: JSObject
+        private static let constructor = JSObject.global.Error.function!
+        public init(message: String) {
+            ref = Self.constructor.new([message])
+        }
+        public var message: String {
+            ref.message.string!
+        }
+        public var name: String {
+            ref.name.string!
+        }
+    }
         Comment thread


        

        
      

        
          


  
    
        
        
  
    
      
          
      

      
            j-f1
  

      

      

      


        Sep 13, 2020



      
    

  

  
    
      
          
    
  


        
            
  
      
              Copy link

  
              
  
      
                Copy Markdown

  
        
      
    

    
        

  
  Member


        

    
  


        
      
  
  
  
    

    There was a problem hiding this comment.


  

 
  
    

    Choose a reason for hiding this comment

    
      The reason will be displayed to describe this comment to others. Learn more.
    

    
      
      


  


  
    
      Although it’s not standard, all engines that I know of implement error.stack to provide a stack trace as a string. It might be useful to access it.
    
  
  



    

        
      
  
  
    
  
  
  
    
    Sorry, something went wrong.
  

  
    
  
    
      

              Uh oh!

              
There was an error while loading. Please reload this page.


  
  


          
              
  
    
    
      
        
            
    All reactions
+    extension JSError: CustomStringConvertible {
+        public var description: String { ref.description }
+    }