1 files changed, 59 insertions, 0 deletions
diff --git a/src/js/jserror.nim b/src/js/jserror.nim
new file mode 100644
index 00000000..b4101830
--- /dev/null
+++ b/src/js/jserror.nim
@@ -0,0 +1,59 @@
+import types/opt
+
+type
+  JSError* = ref object of RootObj
+    e*: JSErrorEnum
+    message*: string
+
+  JSErrorEnum* = enum
+    # QuickJS internal errors
+    jeEvalError = "EvalError"
+    jeRangeError = "RangeError"
+    jeReferenceError = "ReferenceError"
+    jeSyntaxError = "SyntaxError"
+    jeTypeError = "TypeError"
+    jeURIError = "URIError"
+    jeInternalError = "InternalError"
+    jeAggregateError = "AggregateError"
+    # Chawan errors
+    jeDOMException = "DOMException"
+
+  JSResult*[T] = Result[T, JSError]
+
+const QuickJSErrors* = [
+  jeEvalError,
+  jeRangeError,
+  jeReferenceError,
+  jeSyntaxError,
+  jeTypeError,
+  jeURIError,
+  jeInternalError,
+  jeAggregateError
+]
+
+proc newEvalError*(message: string): JSError =
+  return JSError(e: jeEvalError, message: message)
+
+proc newRangeError*(message: string): JSError =
+  return JSError(e: jeRangeError, message: message)
+
+proc newReferenceError*(message: string): JSError =
+  return JSError(e: jeReferenceError, message: message)
+
+proc newSyntaxError*(message: string): JSError =
+  return JSError(e: jeSyntaxError, message: message)
+
+proc newTypeError*(message: string): JSError =
+  return JSError(e: jeTypeError, message: message)
+
+proc newURIError*(message: string): JSError =
+  return JSError(e: jeURIError, message: message)
+
+proc newInternalError*(message: string): JSError =
+  return JSError(e: jeInternalError, message: message)
+
+proc newAggregateError*(message: string): JSError =
+  return JSError(e: jeAggregateError, message: message)
+
+template errTypeError*(message: string): untyped =
+  err(newTypeError(message))