base-3.0.1.0: Basic librariesSource codeContentsIndex
GHC.Err
Portabilitynon-portable (GHC extensions)
Stabilityinternal
Maintainercvs-ghc@haskell.org
Description

The GHC.Err module defines the code for the wired-in error functions, which have a special type in the compiler (with "open tyvars").

We cannot define these functions in a module where they might be used (e.g., GHC.Base), because the magical wired-in type will get confused with what the typechecker figures out.

Synopsis
irrefutPatError :: Addr# -> a
noMethodBindingError :: Addr# -> a
nonExhaustiveGuardsError :: Addr# -> a
patError :: Addr# -> a
recSelError :: Addr# -> a
recConError :: Addr# -> a
runtimeError :: Addr# -> a
absentErr :: a
divZeroError :: a
overflowError :: a
error :: String -> a
assertError :: Addr# -> Bool -> a -> a
undefined :: a
Documentation
irrefutPatError :: Addr# -> aSource
noMethodBindingError :: Addr# -> aSource
nonExhaustiveGuardsError :: Addr# -> aSource
patError :: Addr# -> aSource
recSelError :: Addr# -> aSource
recConError :: Addr# -> aSource
runtimeError :: Addr# -> aSource
absentErr :: aSource
divZeroError :: aSource
overflowError :: aSource
error :: String -> aSource
error stops execution and displays an error message.
assertError :: Addr# -> Bool -> a -> aSource
undefined :: aSource
A special case of error. It is expected that compilers will recognize this and insert error messages which are more appropriate to the context in which undefined appears.
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