Yi.Eval

Main (generic) evaluation interface

execEditorAction :: String -> YiM ()

Runs the action, as written by the user.

The behaviour of this function can be customised by modifying the Evaluator variable.

getAllNamesInScope :: YiM [String]

Lists the action names in scope, for use by execEditorAction.

The behaviour of this function can be customised by modifying the Evaluator variable.

data Evaluator

Config variable for customising the behaviour of execEditorAction and getAllNamesInScope.

Set this variable using evaluator. See ghciEvaluator and finiteListEvaluator for two implementation.

Constructors

Evaluator

Fields

execEditorActionImpl :: String -> YiM ()

implementation of execEditorAction

getAllNamesInScopeImpl :: YiM [String]

implementation of getAllNamesInScope

Instances

Typeable Evaluator

Initializable Evaluator

YiConfigVariable Evaluator

evaluator :: Field Evaluator

The evaluator to use for execEditorAction and getAllNamesInScope.

Standard evaluators

ghciEvaluator :: Evaluator

Evaluator implemented by calling GHCi. This evaluator can run arbitrary expressions in the class YiAction.

The following two imports are always present:

 import Yi
 import qualified Yi.Keymap as Yi.Keymap

Also, if the file

 $HOME/.yi/local/Env.hs

exists, it is imported unqualified.

publishedActionsEvaluator :: Evaluator

Evaluator based on a fixed list of published actions. Has a few differences from ghciEvaluator:

• expressions can't be evaluated
• all suggested actions are actually valued
• (related to the above) doesn't contain junk actions from Prelude
• doesn't require GHCi backend, so uses less memory

publishedActions :: Field (HashMap String Action)

Accessor for the published actions. Consider using publishAction.

publishAction :: (YiAction a x, Show x) => String -> a -> ConfigM ()

Publish the given action, by the given name. This will overwrite any existing actions by the same name.

Eval/Interpretation

jumpToErrorE :: YiM ()

jumpToE :: String -> Int -> Int -> YiM ()

consoleKeymap :: Keymap