| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
TcExpr
Synopsis
- tcPolyExpr :: LHsExpr GhcRn -> TcSigmaType -> TcM (LHsExpr GhcTcId)
- tcMonoExpr :: LHsExpr GhcRn -> ExpRhoType -> TcM (LHsExpr GhcTcId)
- tcMonoExprNC :: LHsExpr GhcRn -> ExpRhoType -> TcM (LHsExpr GhcTcId)
- tcInferSigma :: LHsExpr GhcRn -> TcM (LHsExpr GhcTcId, TcSigmaType)
- tcInferSigmaNC :: LHsExpr GhcRn -> TcM (LHsExpr GhcTcId, TcSigmaType)
- tcInferRho :: LHsExpr GhcRn -> TcM (LHsExpr GhcTcId, TcRhoType)
- tcInferRhoNC :: LHsExpr GhcRn -> TcM (LHsExpr GhcTcId, TcRhoType)
- tcSyntaxOp :: CtOrigin -> SyntaxExpr GhcRn -> [SyntaxOpType] -> ExpRhoType -> ([TcSigmaType] -> TcM a) -> TcM (a, SyntaxExpr GhcTcId)
- tcSyntaxOpGen :: CtOrigin -> SyntaxExpr GhcRn -> [SyntaxOpType] -> SyntaxOpType -> ([TcSigmaType] -> TcM a) -> TcM (a, SyntaxExpr GhcTcId)
- data SyntaxOpType
- synKnownType :: TcType -> SyntaxOpType
- tcCheckId :: Name -> ExpRhoType -> TcM (HsExpr GhcTcId)
- addExprErrCtxt :: LHsExpr GhcRn -> TcM a -> TcM a
- getFixedTyVars :: [FieldLabelString] -> [TyVar] -> [ConLike] -> TyVarSet
Documentation
tcPolyExpr :: LHsExpr GhcRn -> TcSigmaType -> TcM (LHsExpr GhcTcId) Source #
tcMonoExpr :: LHsExpr GhcRn -> ExpRhoType -> TcM (LHsExpr GhcTcId) Source #
tcMonoExprNC :: LHsExpr GhcRn -> ExpRhoType -> TcM (LHsExpr GhcTcId) Source #
tcInferSigma :: LHsExpr GhcRn -> TcM (LHsExpr GhcTcId, TcSigmaType) Source #
tcInferSigmaNC :: LHsExpr GhcRn -> TcM (LHsExpr GhcTcId, TcSigmaType) Source #
Arguments
| :: CtOrigin | |
| -> SyntaxExpr GhcRn | |
| -> [SyntaxOpType] | shape of syntax operator arguments |
| -> ExpRhoType | overall result type |
| -> ([TcSigmaType] -> TcM a) | Type check any arguments |
| -> TcM (a, SyntaxExpr GhcTcId) |
Typecheck a syntax operator The operator is always a variable at this stage (i.e. renamer output)
tcSyntaxOpGen :: CtOrigin -> SyntaxExpr GhcRn -> [SyntaxOpType] -> SyntaxOpType -> ([TcSigmaType] -> TcM a) -> TcM (a, SyntaxExpr GhcTcId) Source #
Slightly more general version of tcSyntaxOp that allows the caller
to specify the shape of the result of the syntax operator
data SyntaxOpType Source #
What to expect for an argument to a rebindable-syntax operator.
Quite like Type, but allows for holes to be filled in by tcSyntaxOp.
The callback called from tcSyntaxOp gets a list of types; the meaning
of these types is determined by a left-to-right depth-first traversal
of the SyntaxOpType tree. So if you pass in
SynAny `SynFun` (SynList `SynFun` SynType Int) `SynFun` SynAny
you'll get three types back: one for the first SynAny, the element
type of the list, and one for the last SynAny. You don't get anything
for the SynType, because you've said positively that it should be an
Int, and so it shall be.
This is defined here to avoid defining it in TcExpr.hs-boot.
Constructors
| SynAny | Any type |
| SynRho | A rho type, deeply skolemised or instantiated as appropriate |
| SynList | A list type. You get back the element type of the list |
| SynFun SyntaxOpType SyntaxOpType infixr 0 | A function. |
| SynType ExpType | A known type. |
synKnownType :: TcType -> SyntaxOpType Source #
Like SynType but accepts a regular TcType
getFixedTyVars :: [FieldLabelString] -> [TyVar] -> [ConLike] -> TyVarSet Source #