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Verse using statement |
using { /Verse.org/Verse } |
MakeError<public>(Result:error_type where error_type:any)<transacts><no_rollback>:result(success_type,error_type)
Parameters
MakeError takes the following parameters:
| Name | Type | Description |
|---|---|---|
Result |
error_type |
|
error_type |
any |
Attributes, Specifiers, and Effects
Attributes
The following attributes determine how MakeError behaves outside the Verse language. For the complete list of attributes, see the Attributes section of the Specifiers Page.
| Attribute | Arguments | Meaning |
|---|---|---|
available |
MinUploadedAtFNVersion := 3800 |
This feature is available beginning with the UEFN version specified by MinUploadedAtFNVersion and unavailable prior to that version. |
Specifiers
The following specifiers determine how you can interact with MakeError in your programs. For the complete list of specifiers, see the Specifiers Page.
| Specifier | Meaning |
|---|---|
public |
The identifier is universally accessible. You can use this on modules, classes, interfaces, structs, enums, methods, and data. |
Effects
The following effects determine how MakeError behaves in your programs. For the complete list of effects, see the Effect Specifers section of the Specifiers Page.
| Effect | Meaning |
|---|---|
transacts |
This effect indicates that any actions performed by the function can be rolled back. The transacts effect is required any time a mutable variable (var) is written. You'll be notified when you compile your code if the transacts effect was added to a function that can't be rolled back. Note that this check is not done for functions with the native specifier. |
no_rollback |
This is the default effect when no exclusive effect is specified. The no_rollback effect indicates that any actions performed by the function cannot be undone and so the function cannot be used in a failure context. This effect cannot be manually specified. |