| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Control.Exception.Throwable.TH
Description
The data types creator of exceptions in the compile type.
It has the record of "cause" and "clue".
- declareException :: DatatypeName -> [ValueConstructorName] -> DecsQ
- type DatatypeName = String
- type ValueConstructorName = String
Documentation
declareException :: DatatypeName -> [ValueConstructorName] -> DecsQ Source #
Declare simple concrete exception data type in the compile time.
If the empty list is given to constrNames, create empty data type.
typeName and constrNames must be PascalCase
(e.g> IOException', IndexOutOfBoundsException. NG> "ioException'", "indexOutOfBoundsException") .
type DatatypeName = String Source #
type ValueConstructorName = String Source #