fortran-src-0.16.9: src/Language/Fortran/AST.hs
{-# OPTIONS_GHC -fno-warn-orphans #-} -- for Out (NonEmpty a)
{- | Data types for representing Fortran code (for various versions of Fortran).
The same representation is used for all supported Fortran standards. Constructs
only available in certain versions are gated by the parsers (and the pretty
printer). In general, the definitions here are highly permissible, partly to
allow for all the oddities of older standards & extensions.
Useful Fortran standard references:
* Fortran 2018 standard: WD 1539-1 J3/18-007r1
* Fortran 2008 standard: WD 1539-1 J3/10-007r1
* Fortran 90 standard: ANSI X3.198-1992 (also ISO/IEC 1539:1991)
* Fortran 90 Handbook (J. Adams)
* Fortran 77 standard: ANSI X3.9-1978
Note that the 'Ord' instances provided here do not guarantee any specific
behaviour, other than being valid instances (they are largely for convenience).
-}
module Language.Fortran.AST
(
-- * AST nodes and types
-- ** Statements and expressions
ProgramFile(..)
, ProgramUnit(..)
, Block(..)
, Statement(..)
, Expression(..)
, Index(..)
, Value(..)
, KindParam(..)
, ComplexPart(..)
, UnaryOp(..)
, BinaryOp(..)
-- ** Types and declarations
, Name
, BaseType(..)
, TypeSpec(..)
, Selector(..)
, Declarator(..)
, DeclaratorType(..)
, DimensionDeclarator(..)
-- ** Annotated node list (re-export)
, module Language.Fortran.AST.AList
-- ** Other
, Attribute(..)
, Prefix(..)
, Suffix(..)
, ProcDecl(..)
, ProcInterface(..)
, Comment(..)
, ForallHeader(..)
, ForallHeaderPart(..)
, Only(..)
, MetaInfo(..)
, Prefixes
, Suffixes
, PrefixSuffix
, ModuleNature(..)
, Use(..)
, Argument(..)
, ArgumentExpression(..)
, argExprNormalize
, argExtractExpr
, Intent(..)
, ControlPair(..)
, AllocOpt(..)
, ImpList(..)
, ImpElement(..)
, CommonGroup(..)
, Namelist(..)
, DataGroup(..)
, StructureItem(..)
, UnionMap(..)
, FormatItem(..)
, FlushSpec(..)
, DoSpecification(..)
, ProgramUnitName(..)
-- * Node annotations & related typeclasses
, A0
, Annotated(..)
, Labeled(..)
, Named(..)
-- * Helpers
, validPrefixSuffix
, emptyPrefixes
, emptySuffixes
, emptyPrefixSuffix
, nonExecutableStatement
, nonExecutableStatementBlock
, executableStatement
, executableStatementBlock
, setInitialisation
-- ** Assorted getters & setters
, pfSetFilename
, pfGetFilename
, programUnitBody
, updateProgramUnitBody
, programUnitSubprograms
-- * Re-exports
, NonEmpty(..)
) where
import Prelude hiding ( init )
import Language.Fortran.AST.Common ( Name )
import Language.Fortran.AST.AList
import Language.Fortran.AST.Literal
import Language.Fortran.AST.Literal.Real
import Language.Fortran.AST.Literal.Boz ( Boz )
import Language.Fortran.AST.Literal.Complex
import Language.Fortran.Util.Position
import Language.Fortran.Util.FirstParameter
import Language.Fortran.Util.SecondParameter
import Language.Fortran.AST.Annotated
import Language.Fortran.Version
import Data.Data
import Data.Binary
import Control.DeepSeq
import Text.PrettyPrint.GenericPretty
import Data.List.NonEmpty ( NonEmpty(..) )
-- | The empty annotation.
type A0 = ()
--------------------------------------------------------------------------------
-- Basic AST nodes
--------------------------------------------------------------------------------
-- | Type name referenced in syntax.
--
-- In many Fortran specs and compilers, certain types are actually "synonyms"
-- for other types with specified kinds. The primary example is DOUBLE PRECISION
-- being equivalent to REAL(8). Type kinds were introduced in Fortran 90, and it
-- should be safe to replace all instances of DOUBLE PRECISION with REAL(8) in
-- Fortran 90 code. However, type kinds weren't present in (standard) Fortran
-- 77, so this equivalence was detached from the user.
--
-- In any case, it's unclear how strong the equivalence is and whether it can
-- be retroactively applied to previous standards. We choose to parse types
-- directly, and handle those transformations during type analysis, where we
-- assign most scalars a kind (see 'Analysis.SemType').
data BaseType =
TypeInteger
| TypeReal
| TypeDoublePrecision
| TypeComplex
| TypeDoubleComplex
| TypeLogical
| TypeCharacter
| TypeCustom String
| ClassStar
| ClassCustom String
| TypeByte
deriving stock (Ord, Eq, Show, Data, Generic)
deriving anyclass (Binary)
-- | The type specification of a declaration statement, containing the syntactic
-- type name and kind selector.
--
-- See HP's F90 spec pg.24.
data TypeSpec a = TypeSpec
{ typeSpecAnno :: a
, typeSpecSpan :: SrcSpan
, typeSpecBaseType :: BaseType
, typeSpecSelector :: Maybe (Selector a)
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | The "kind selector" of a declaration statement. Tightly bound to
-- 'TypeSpec'.
--
-- HP's F90 spec (pg.24) actually differentiates between "kind selectors" and
-- "char selectors", where char selectors can specify a length (alongside kind),
-- and the default meaning of an unlabelled kind parameter (the 8 in INTEGER(8))
-- is length instead of kind. We handle this correctly in the parsers, but place
-- both into this 'Selector' type.
--
-- The upshot is, length is invalid for non-CHARACTER types, and the parser
-- guarantees that it will be Nothing. For CHARACTER types, both maybe or may
-- not be present.
--
-- Often used with the assumption that when a 'Selector' term is present, it
-- contains some information (i.e. one of length or kind is @'Just' _@), so that
-- the awkward "empty" possibility may be avoided.
data Selector a = Selector
{ selectorAnno :: a
, selectorSpan :: SrcSpan
, selectorLength :: Maybe (Expression a)
, selectorKind :: Maybe (Expression a)
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data MetaInfo = MetaInfo { miVersion :: FortranVersion, miFilename :: String }
deriving stock (Eq, Ord, Show, Data, Generic)
-- Program structure definition
data ProgramFile a = ProgramFile
{ programFileMeta :: MetaInfo
, programFileProgramUnits :: [ ProgramUnit a ]
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
pfSetFilename :: String -> ProgramFile a -> ProgramFile a
pfSetFilename fn (ProgramFile mi pus) = ProgramFile (mi { miFilename = fn }) pus
pfGetFilename :: ProgramFile a -> String
pfGetFilename (ProgramFile mi _) = miFilename mi
-- | A Fortran program unit. _(F2008 2.2)_
--
-- A Fortran program is made up of many program units.
--
-- Related points from the Fortran 2008 specification:
--
-- * There must be exactly one main program, and any number of other program
-- units.
-- * Note 2.3: There may be at most 1 unnamed block data program unit.
data ProgramUnit a =
PUMain -- ^ Main program
a SrcSpan
(Maybe Name) -- ^ Program name
[Block a] -- ^ Body
(Maybe [ProgramUnit a]) -- ^ Subprograms
| PUModule -- ^ Module
a SrcSpan
Name -- ^ Program name
[Block a] -- ^ Body
(Maybe [ProgramUnit a]) -- ^ Subprograms
| PUSubroutine -- ^ Subroutine subprogram (procedure)
a SrcSpan
(PrefixSuffix a) -- ^ Options (elemental, pure etc.)
Name -- ^ Name
(Maybe (AList Expression a)) -- ^ Arguments
[Block a] -- ^ Body
(Maybe [ProgramUnit a]) -- ^ Subprograms
| PUFunction -- ^ Function subprogram (procedure)
a SrcSpan
(Maybe (TypeSpec a)) -- ^ Return type
(PrefixSuffix a) -- ^ Options (elemental, pure etc.)
Name -- ^ Name
(Maybe (AList Expression a)) -- ^ Arguments
(Maybe (Expression a)) -- ^ Result
[Block a] -- ^ Body
(Maybe [ProgramUnit a]) -- ^ Subprograms
| PUBlockData -- ^ Block data (named or unnamed).
a SrcSpan
(Maybe Name) -- ^ Optional block
[Block a] -- Body
| PUComment -- ^ Program unit-level comment
a SrcSpan
(Comment a)
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
type Prefixes a = Maybe (AList Prefix a)
type Suffixes a = Maybe (AList Suffix a)
type PrefixSuffix a = (Prefixes a, Suffixes a)
emptyPrefixes :: Prefixes a
emptyPrefixes = Nothing
emptySuffixes :: Suffixes a
emptySuffixes = Nothing
emptyPrefixSuffix :: PrefixSuffix a
emptyPrefixSuffix = (emptyPrefixes, emptySuffixes)
data Prefix a = PfxRecursive a SrcSpan
| PfxElemental a SrcSpan
| PfxPure a SrcSpan
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- see C1241 & C1242 (Fortran2003)
validPrefixSuffix :: PrefixSuffix a -> Bool
validPrefixSuffix (mpfxs, msfxs) =
not (any isElem pfxs) || (not (any isRec pfxs) && not (any isBind sfxs))
where
isElem (PfxElemental {}) = True; isElem _ = False
isRec (PfxRecursive {}) = True; isRec _ = False
isBind (SfxBind {}) = True
pfxs = aStrip' mpfxs
sfxs = aStrip' msfxs
data Suffix a = SfxBind a SrcSpan (Maybe (Expression a))
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
programUnitBody :: ProgramUnit a -> [Block a]
programUnitBody (PUMain _ _ _ bs _) = bs
programUnitBody (PUModule _ _ _ bs _) = bs
programUnitBody (PUSubroutine _ _ _ _ _ bs _) = bs
programUnitBody (PUFunction _ _ _ _ _ _ _ bs _) = bs
programUnitBody (PUBlockData _ _ _ bs) = bs
programUnitBody PUComment{} = []
updateProgramUnitBody :: ProgramUnit a -> [Block a] -> ProgramUnit a
updateProgramUnitBody (PUMain a s n _ pu) bs' =
PUMain a s n bs' pu
updateProgramUnitBody (PUModule a s n _ pu) bs' =
PUModule a s n bs' pu
updateProgramUnitBody (PUSubroutine a s f n args _ pu) bs' =
PUSubroutine a s f n args bs' pu
updateProgramUnitBody (PUFunction a s t f n args res _ pu) bs' =
PUFunction a s t f n args res bs' pu
updateProgramUnitBody (PUBlockData a s n _) bs' =
PUBlockData a s n bs'
updateProgramUnitBody p@PUComment{} _ = p
programUnitSubprograms :: ProgramUnit a -> Maybe [ProgramUnit a]
programUnitSubprograms (PUMain _ _ _ _ s) = s
programUnitSubprograms (PUModule _ _ _ _ s) = s
programUnitSubprograms (PUSubroutine _ _ _ _ _ _ s) = s
programUnitSubprograms (PUFunction _ _ _ _ _ _ _ _ s) = s
programUnitSubprograms PUBlockData{} = Nothing
programUnitSubprograms PUComment{} = Nothing
newtype Comment a = Comment String
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data Block a =
BlStatement -- ^ Statement
a SrcSpan
(Maybe (Expression a)) -- ^ Label
(Statement a) -- ^ Wrapped statement
| BlForall -- ^ FORALL array assignment syntax
a SrcSpan
(Maybe (Expression a)) -- ^ Label
(Maybe String) -- ^ Construct name
(ForallHeader a) -- ^ Header information
[ Block a ] -- ^ Body
(Maybe (Expression a)) -- ^ Label to END DO
| BlIf -- ^ IF block construct
a SrcSpan
(Maybe (Expression a)) -- ^ Label
(Maybe String) -- ^ Construct name
(NonEmpty (Expression a, [Block a])) -- ^ IF, ELSE IF clauses
(Maybe [Block a]) -- ^ ELSE block
(Maybe (Expression a)) -- ^ Label to END IF
| BlCase -- ^ SELECT CASE construct
a SrcSpan
(Maybe (Expression a)) -- ^ Label
(Maybe String) -- ^ Construct name
(Expression a) -- ^ Scrutinee
[(AList Index a, [Block a])] -- ^ CASE clauses
(Maybe [Block a]) -- ^ CASE default
(Maybe (Expression a)) -- ^ Label to END SELECT
| BlDo a SrcSpan
(Maybe (Expression a)) -- ^ Label
(Maybe String) -- ^ Construct name
(Maybe (Expression a)) -- ^ Target label
(Maybe (DoSpecification a)) -- ^ Do Specification
[ Block a ] -- ^ Body
(Maybe (Expression a)) -- ^ Label to END DO
| BlDoWhile a SrcSpan
(Maybe (Expression a)) -- ^ Label
(Maybe String) -- ^ Construct name
(Maybe (Expression a)) -- ^ Target label
(Expression a) -- ^ Condition
[ Block a ] -- ^ Body
(Maybe (Expression a)) -- ^ Label to END DO
| BlAssociate
-- ^ The first 'Expression' in the abbreviation tuple is always an
-- @ExpValue _ _ (ValVariable id)@. Also guaranteed nonempty. TODO
a SrcSpan
(Maybe (Expression a)) -- ^ Label
(Maybe String) -- ^ Construct name
(AList (ATuple Expression Expression) a) -- ^ Expression abbreviations
[ Block a ] -- ^ Body
(Maybe (Expression a)) -- ^ Label
| BlInterface a SrcSpan
(Maybe (Expression a)) -- ^ Label
Bool -- ^ Is this an abstract interface?
[ ProgramUnit a ] -- ^ Interface procedures
[ Block a ] -- ^ Module procedures
| BlComment -- ^ Block-level comment
a SrcSpan
(Comment a)
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data Statement a =
StDeclaration
-- ^ Declare variable(s) at a given type.
a SrcSpan
(TypeSpec a) -- ^ Type specification
(Maybe (AList Attribute a)) -- ^ Attributes
(AList Declarator a) -- ^ Declarators
| StStructure
-- ^ A structure (pre-F90 extension) declaration.
a SrcSpan
(Maybe String) -- ^ Structure name
(AList StructureItem a) -- ^ Structure fields
| StIntent a SrcSpan Intent (AList Expression a)
| StOptional a SrcSpan (AList Expression a)
| StPublic a SrcSpan (Maybe (AList Expression a))
| StPrivate a SrcSpan (Maybe (AList Expression a))
| StProtected a SrcSpan (Maybe (AList Expression a))
| StSave
-- ^ SAVE statement: variable retains its value between invocations
a SrcSpan
(Maybe (AList Expression a))
-- ^ Save the given variables, or all saveable items in the program unit
-- if 'Nothing'
| StDimension a SrcSpan (AList Declarator a)
-- ^ DIMENSION attribute as statement.
| StAllocatable a SrcSpan (AList Declarator a)
-- ^ ALLOCATABLE attribute statement.
| StAsynchronous a SrcSpan (AList Declarator a)
-- ^ ASYNCHRONOUS attribute statement.
| StPointer a SrcSpan (AList Declarator a)
-- ^ POINTER attribute statement.
| StTarget a SrcSpan (AList Declarator a)
-- ^ TARGET attribute statement.
| StValue a SrcSpan (AList Declarator a)
-- ^ VALUE attribute statement.
| StVolatile a SrcSpan (AList Declarator a)
-- ^ VOLATILE attribute statement.
| StData a SrcSpan (AList DataGroup a)
| StAutomatic a SrcSpan (AList Declarator a)
| StStatic a SrcSpan (AList Declarator a)
| StNamelist a SrcSpan (AList Namelist a)
| StParameter a SrcSpan (AList Declarator a)
-- ^ PARAMETER attribute as statement.
| StExternal a SrcSpan (AList Expression a)
| StIntrinsic a SrcSpan (AList Expression a)
| StCommon a SrcSpan (AList CommonGroup a)
-- ^ A COMMON statement, defining a list of common blocks.
| StEquivalence a SrcSpan (AList (AList Expression) a)
| StFormat a SrcSpan (AList FormatItem a)
| StImplicit a SrcSpan (Maybe (AList ImpList a))
| StEntry
a SrcSpan
(Expression a) -- ^ name (guaranteed @ExpValue ValVariable@)
(Maybe (AList Expression a)) -- ^ argument variables
(Maybe (Expression a)) -- ^ optional result variable (guaranteed @ExpValue ValVariable@)
| StInclude
a SrcSpan
(Expression a) -- ^ file name to include. guaranteed @ExpValue ValString@
(Maybe [Block a]) -- ^ First parsed to 'Nothing', then potentially "expanded out" in a post-parse step.
| StDo a SrcSpan (Maybe String) (Maybe (Expression a)) (Maybe (DoSpecification a))
| StDoWhile a SrcSpan (Maybe String) (Maybe (Expression a)) (Expression a)
| StEnddo a SrcSpan (Maybe String)
| StCycle a SrcSpan (Maybe (Expression a)) -- ^ guaranteed @ExpValue ValVariable@
| StExit a SrcSpan (Maybe (Expression a))
| StIfLogical
a SrcSpan
(Expression a) -- ^ condition
(Statement a) -- ^ statement (should not further recurse)
| StIfArithmetic a SrcSpan (Expression a) (Expression a) (Expression a) (Expression a)
| StSelectCase -- ^ CASE construct opener.
a SrcSpan
(Maybe String) -- ^ block name
(Expression a)
-- ^ CASE expression. Should be one of scalar CHARACTER, INTEGER or LOGICAL.
| StCase -- ^ inner CASE clause
a SrcSpan
(Maybe String) -- ^ block name (must match a corresponding opener)
(Maybe (AList Index a))
-- ^ CASE indices (expressions). 'Nothing' means it's CASE DEFAULT.
| StEndcase -- ^ END SELECT statement
a SrcSpan
(Maybe String) -- ^ block name (must match corresponding opener name)
| StFunction a SrcSpan (Expression a) (AList Expression a) (Expression a)
| StExpressionAssign a SrcSpan (Expression a) (Expression a)
| StPointerAssign a SrcSpan (Expression a) (Expression a)
| StLabelAssign a SrcSpan (Expression a) (Expression a)
| StGotoUnconditional a SrcSpan (Expression a)
| StGotoAssigned a SrcSpan (Expression a) (Maybe (AList Expression a))
| StGotoComputed a SrcSpan (AList Expression a) (Expression a)
| StCall a SrcSpan (Expression a) (AList Argument a)
| StReturn a SrcSpan (Maybe (Expression a))
| StContinue a SrcSpan
| StStop a SrcSpan (Maybe (Expression a))
| StPause a SrcSpan (Maybe (Expression a))
| StRead a SrcSpan (AList ControlPair a) (Maybe (AList Expression a))
| StRead2 a SrcSpan (Expression a) (Maybe (AList Expression a))
| StWrite a SrcSpan (AList ControlPair a) (Maybe (AList Expression a))
| StPrint a SrcSpan (Expression a) (Maybe (AList Expression a))
| StTypePrint
-- ^ Special TYPE "print" statement (~F77 syntactic sugar for PRINT/WRITE)
--
-- Not to be confused with the TYPE construct in later standards for
-- defining derived data types.
a SrcSpan
(Expression a) -- ^ format identifier
(Maybe (AList Expression a)) -- ^ variables etc. to print
| StOpen a SrcSpan (AList ControlPair a)
| StClose a SrcSpan (AList ControlPair a)
| StFlush a SrcSpan (AList FlushSpec a)
| StInquire a SrcSpan (AList ControlPair a)
| StRewind a SrcSpan (AList ControlPair a)
| StRewind2 a SrcSpan (Expression a)
| StBackspace a SrcSpan (AList ControlPair a)
| StBackspace2 a SrcSpan (Expression a)
| StEndfile a SrcSpan (AList ControlPair a)
| StEndfile2 a SrcSpan (Expression a)
| StAllocate -- ^ ALLOCATE: associate pointers with targets
a SrcSpan
(Maybe (TypeSpec a))
(AList Expression a) -- ^ pointers (variables/references)
(Maybe (AList AllocOpt a))
| StNullify -- ^ NULLIFY: disassociate pointers from targets
a SrcSpan
(AList Expression a) -- ^ pointers (variables/references)
| StDeallocate -- ^ DEALLOCATE: disassociate pointers from targets
a SrcSpan
(AList Expression a) -- ^ pointers (variables/references)
(Maybe (AList AllocOpt a))
| StWhere
a SrcSpan
(Expression a) -- ^ must be LOGICAL
(Statement a) -- ^ guaranteed to be 'StExpressionAssign'
| StWhereConstruct -- ^ begin WHERE block
a SrcSpan
(Maybe String) -- ^ block name
(Expression a) -- ^ must be LOGICAL
| StElsewhere -- ^ WHERE clause. compare to IF, IF ELSE
a SrcSpan
(Maybe String) -- ^ block name
(Maybe (Expression a)) -- ^ must be LOGICAL
| StEndWhere -- ^ end WHERE block
a SrcSpan
(Maybe String) -- ^ block name
| StUse
-- ^ Import definitions (procedures, types) from a module. /(F2018 14.2.2)/
--
-- If a module nature isn't provided and there are both intrinsic and
-- nonintrinsic modules with that name, the nonintrinsic module is selected.
a SrcSpan
(Expression a)
-- ^ name of module to use, guaranteed to be @ExpValue ValVariable@
(Maybe ModuleNature) -- ^ optional explicit module nature
Only
(Maybe (AList Use a)) -- ^ definitions to import (including renames)
| StModuleProcedure
a SrcSpan
(AList Expression a)
-- ^ procedure names, guaranteed @ExpValue ValVariable@
| StProcedure a SrcSpan (Maybe (ProcInterface a)) (Maybe (AList Attribute a)) (AList ProcDecl a)
| StType -- ^ TYPE ... = begin a DDT (derived data type) definition block
a SrcSpan
(Maybe (AList Attribute a)) -- ^ attributes (subset permitted)
String -- ^ DDT name
| StEndType
-- ^ END TYPE [ type-name ] = end a DDT definition block
a SrcSpan
(Maybe String) -- ^ optional type name (must match corresponding opener)
| StSequence a SrcSpan
| StForall -- ^ FORALL ... = begin a FORALL block
a SrcSpan
(Maybe String) -- ^ block name
(ForallHeader a) -- ^ FORALL header syntax
| StEndForall
-- ^ END FORALL [ construct-name ]
a SrcSpan
(Maybe String) -- ^ block name
| StForallStatement -- ^ FORALL statement - essentially an inline FORALL block
a SrcSpan
(ForallHeader a) -- ^ FORALL header syntax
(Statement a) -- ^ guaranteed 'StExpressionAssign' or 'StPointerAssign'
| StImport
a SrcSpan
(AList Expression a) -- ^ guaranteed @ExpValue ValVariable@
| StEnum a SrcSpan
| StEnumerator a SrcSpan (AList Declarator a)
| StEndEnum a SrcSpan
-- Following is a temporary solution to a complicated FORMAT statement
-- parsing problem.
| StFormatBogus a SrcSpan String
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- R1214 proc-decl is procedure-entity-name [=> null-init]
data ProcDecl a = ProcDecl
{ procDeclAnno :: a
, procDeclSpan :: SrcSpan
, procDeclEntityName :: Expression a
, procDeclInitName :: Maybe (Expression a)
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- R1212 proc-interface is interface-name or declaration-type-spec
data ProcInterface a = ProcInterfaceName a SrcSpan (Expression a)
| ProcInterfaceType a SrcSpan (TypeSpec a)
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | Part of a FORALL statement. Introduced in Fortran 95.
data ForallHeader a = ForallHeader
{ forallHeaderAnno :: a
, forallHeaderSpan :: SrcSpan
, forallHeaderHeaders :: [ForallHeaderPart a]
, forallHeaderScaling :: Maybe (Expression a)
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data ForallHeaderPart a = ForallHeaderPart
{ forallHeaderPartAnno :: a
, forallHeaderPartSpan :: SrcSpan
, forallHeaderPartName :: Name
, forallHeaderPartStart :: Expression a
, forallHeaderPartEnd :: Expression a
, forallHeaderPartStride :: Maybe (Expression a)
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data Only = Exclusive | Permissive
deriving stock (Eq, Ord, Show, Data, Generic)
data ModuleNature = ModIntrinsic | ModNonIntrinsic
deriving stock (Eq, Ord, Show, Data, Generic)
-- | Part of USE statement. /(F2018 14.2.2)/
--
-- Expressions may be names or operators.
data Use a =
UseRename
a SrcSpan
(Expression a) -- ^ local name
(Expression a) -- ^ use name
| UseID
a SrcSpan
(Expression a) -- ^ name
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- TODO potentially should throw Maybe String into ArgumentExpression too?
data Argument a = Argument
{ argumentAnno :: a
, argumentSpan :: SrcSpan
, argumentName :: Maybe String
, argumentExpr :: ArgumentExpression a
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | Extra data type to disambiguate between plain variable arguments and
-- expression arguments (due to apparent behaviour of some Fortran compilers
-- to treat these differently).
--
-- Note the 'Annotated' and 'Spanned' instances pass to the inner 'Expression'
-- for 'ArgExpr'.
data ArgumentExpression a
= ArgExpr (Expression a)
| ArgExprVar a SrcSpan Name
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
instance Annotated ArgumentExpression where
getAnnotation = \case
ArgExpr e -> getAnnotation e
ArgExprVar a _ss _nm -> a
setAnnotation a = \case
ArgExpr e -> ArgExpr (setAnnotation a e)
ArgExprVar _a ss nm -> ArgExprVar a ss nm
modifyAnnotation f = \case
ArgExpr e -> ArgExpr (modifyAnnotation f e)
ArgExprVar a ss nm -> ArgExprVar (f a) ss nm
instance Spanned (ArgumentExpression a) where
getSpan = \case
ArgExpr e -> getSpan e
ArgExprVar _a ss _nm -> ss
setSpan ss = \case
ArgExpr e -> ArgExpr (setSpan ss e)
ArgExprVar a _ss nm -> ArgExprVar a ss nm
argExprNormalize :: ArgumentExpression a -> Expression a
argExprNormalize = \case ArgExpr e -> e
ArgExprVar a ss v -> ExpValue a ss (ValVariable v)
argExtractExpr :: Argument a -> Expression a
argExtractExpr (Argument _ _ _ ae) = argExprNormalize ae
data Attribute a =
AttrAllocatable a SrcSpan
| AttrAsynchronous a SrcSpan
| AttrDimension a SrcSpan (AList DimensionDeclarator a)
| AttrExternal a SrcSpan
| AttrIntent a SrcSpan Intent
| AttrIntrinsic a SrcSpan
| AttrOptional a SrcSpan
| AttrParameter a SrcSpan
| AttrPointer a SrcSpan
| AttrPrivate a SrcSpan
| AttrProtected a SrcSpan
| AttrPublic a SrcSpan
| AttrSave a SrcSpan
| AttrSuffix a SrcSpan (Suffix a) -- for language-binding-spec
| AttrTarget a SrcSpan
| AttrValue a SrcSpan
| AttrVolatile a SrcSpan
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data Intent = In | Out | InOut
deriving stock (Eq, Ord, Show, Data, Generic)
data ControlPair a = ControlPair
{ controlPairAnno :: a
, controlPairSpan :: SrcSpan
, controlPairName :: Maybe String
, controlPairExpr :: Expression a
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | Part of ALLOCATE statement.
--
-- There are restrictions on how ALLOCATE options can be combined. See F2018
-- 9.7.1, or:
-- https://www.intel.com/content/www/us/en/develop/documentation/fortran-compiler-oneapi-dev-guide-and-reference/top/language-reference/a-to-z-reference/a-to-b/allocate-statement.html
data AllocOpt a =
AOStat -- ^ (output) status of allocation
a SrcSpan
(Expression a) -- ^ scalar integer variable
| AOErrMsg -- ^ (output) error condition if present
a SrcSpan
(Expression a) -- ^ scalar character variable
| AOSource a SrcSpan (Expression a)
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | List of names for an IMPLICIT statement.
data ImpList a = ImpList
{ impListAnno :: a
, impListSpan :: SrcSpan
, impListType :: TypeSpec a
, impListElements :: AList ImpElement a
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data ImpElement a = ImpElement
{ impElementAnno :: a
, impElementSpan :: SrcSpan
, impElementFrom :: Char
, impElementTo :: Maybe Char
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | A single COMMON block definition.
--
-- The 'Declarator's here shall not contain initializing expressions.
data CommonGroup a = CommonGroup
{ commonGroupAnno :: a
, commonGroupSpan :: SrcSpan
, commonGroupName :: Maybe (Expression a)
, commonGroupVars :: AList Declarator a
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data Namelist a = Namelist
{ namelistAnno :: a
, namelistSpan :: SrcSpan
, namelistName :: Expression a
, namelistVars :: AList Expression a
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | The part of a DATA statement describing a single set of initializations.
--
-- The initializer list must be compatible with the name list. Generally, that
-- means either the lengths must be equal, or the name list is the singleton
-- list referring to an array, and the initializer list is compatible with that
-- array's shape.
data DataGroup a = DataGroup
{ dataGroupAnno :: a
, dataGroupSpan :: SrcSpan
, dataGroupNames :: AList Expression a
, dataGroupInitializers :: AList Expression a
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | Field types in pre-Fortran 90 non-standard structure/record/union
-- extension.
--
-- Structures were obsoleted by derived types in later standards.
--
-- The outer structure is stored in 'StStructure'.
data StructureItem a =
StructFields -- ^ Regular field
a SrcSpan
(TypeSpec a) -- ^ Type
(Maybe (AList Attribute a)) -- ^ Attributes
(AList Declarator a) -- ^ Declarators
| StructUnion -- ^ Union field
a SrcSpan
(AList UnionMap a) -- ^ Union fields
| StructStructure -- ^ Substructure (nested/inline record/structure)
a SrcSpan
(Maybe String) -- ^ Substructure name
String -- ^ Field name
(AList StructureItem a) -- ^ Substructure fields
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data UnionMap a = UnionMap
{ unionMapAnno :: a
, unionMapSpan :: SrcSpan
, unionMapFields :: AList StructureItem a
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data FormatItem a =
FIFormatList a SrcSpan (Maybe String) (AList FormatItem a)
| FIHollerith a SrcSpan (Value a)
| FIDelimiter a SrcSpan
-- descriptor type | annotation | span | repeat | descriptor | width | integer
| FIFieldDescriptorDEFG a SrcSpan (Maybe Integer) Char Integer Integer
| FIFieldDescriptorAIL a SrcSpan (Maybe Integer) Char Integer
| FIBlankDescriptor a SrcSpan Integer
| FIScaleFactor a SrcSpan Integer
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | Part of the newer (Fortran 2003?) FLUSH statement.
--
-- See: https://www.ibm.com/docs/en/xl-fortran-aix/15.1.0?topic=attributes-flush-fortran-2003
data FlushSpec a
= FSUnit
a SrcSpan
(Expression a) -- ^ scalar integer expression
| FSIOStat
a SrcSpan
(Expression a) -- ^ scalar integer variable
| FSIOMsg
a SrcSpan
(Expression a) -- ^ scalar character variable
| FSErr
a SrcSpan
(Expression a) -- ^ statement label
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data DoSpecification a = DoSpecification
{ doSpecAnno :: a
, doSpecSpan :: SrcSpan
, doSpecInitial :: Statement a -- ^ Guaranteed to be 'StExpressionAssign'
, doSpecLimit :: Expression a
, doSpecIncrement :: Maybe (Expression a)
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data Expression a =
ExpValue a SrcSpan (Value a)
-- ^ Use a value as an expression.
| ExpBinary a SrcSpan BinaryOp (Expression a) (Expression a)
-- ^ A binary operator applied to two expressions.
| ExpUnary a SrcSpan UnaryOp (Expression a)
-- ^ A unary operator applied to one expression.
| ExpSubscript a SrcSpan (Expression a) (AList Index a)
-- ^ Array indexing
| ExpDataRef a SrcSpan (Expression a) (Expression a)
-- ^ @%@ notation for variables inside data types
| ExpFunctionCall a SrcSpan (Expression a) (AList Argument a)
-- ^ A function expression applied to a list of arguments.
| ExpImpliedDo a SrcSpan (AList Expression a) (DoSpecification a)
-- ^ Implied do (i.e. one-liner do loops)
| ExpInitialisation a SrcSpan (AList Expression a)
-- ^ Array initialisation
| ExpReturnSpec a SrcSpan (Expression a)
-- ^ Function return value specification
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data Index a =
IxSingle a SrcSpan (Maybe String) (Expression a)
| IxRange a SrcSpan
(Maybe (Expression a)) -- ^ Lower index
(Maybe (Expression a)) -- ^ Upper index
(Maybe (Expression a)) -- ^ Stride
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | Values and literals.
--
-- Note that 'KindParam' kind parameters may only be available on certain
-- Fortran parsers. The fixed form parsers (F77, F66) may not parse them.
data Value a
= ValInteger String (Maybe (KindParam a))
-- ^ The string representation of an integer literal
| ValReal RealLit (Maybe (KindParam a))
-- ^ The string representation of a real literal
| ValComplex (ComplexLit a)
-- ^ The real and imaginary parts of a complex literal @(real, imag)@.
| ValString String
-- ^ A string literal
| ValBoz Boz
-- ^ A BOZ literal constant
| ValHollerith String
-- ^ A Hollerith literal
| ValVariable Name
-- ^ The name of a variable
| ValIntrinsic Name
-- ^ The name of a built-in function
| ValLogical Bool (Maybe (KindParam a))
-- ^ A boolean value
| ValOperator String
-- ^ User-defined operators in interfaces
| ValAssignment
-- ^ Overloaded assignment in interfaces
| ValType String
| ValStar
| ValColon -- see R402 / C403 in Fortran2003 spec.
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
deriving anyclass (NFData, Out)
-- | Declarators. R505 entity-decl from F90 ISO spec.
--
-- Declaration statements can have multiple variables on the right of the double
-- colon, separated by commas. A 'Declarator' identifies a single one of these.
-- In F90, they look like this:
--
-- VAR_NAME ( OPT_ARRAY_DIMS ) * CHAR_LENGTH_EXPR = INIT_EXPR
--
-- F77 doesn't standardize so nicely -- in particular, I'm not confident in
-- initializing expression syntax. So no example.
--
-- Only CHARACTERs may specify a length. However, a nonstandard syntax feature
-- uses non-CHARACTER lengths as a kind parameter. We parse regardless of type
-- and warn during analysis.
data Declarator a = Declarator
{ declaratorAnno :: a
, declaratorSpan :: SrcSpan
, declaratorVariable :: Expression a
, declaratorType :: DeclaratorType a
, declaratorLength :: Maybe (Expression a)
, declaratorInitial :: Maybe (Expression a)
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data DeclaratorType a
= ScalarDecl
| ArrayDecl (AList DimensionDeclarator a)
deriving stock (Eq, Ord, Show, Data, Generic, Functor)
-- | Set a 'Declarator''s initializing expression only if it has none already.
setInitialisation :: Declarator a -> Expression a -> Declarator a
setInitialisation (Declarator a s v dt l Nothing) init =
Declarator a (getTransSpan s init) v dt l (Just init)
setInitialisation d _ = d
-- | Dimension declarator stored in @dimension@ attributes and 'Declarator's.
data DimensionDeclarator a = DimensionDeclarator
{ dimDeclAnno :: a
, dimDeclSpan :: SrcSpan
, dimDeclLower :: Maybe (Expression a)
, dimDeclUpper :: Maybe (Expression a)
} deriving stock (Eq, Ord, Show, Data, Generic, Functor)
data UnaryOp =
Plus
| Minus
| Not
| UnCustom String
deriving stock (Eq, Ord, Show, Data, Generic)
instance Binary UnaryOp
data BinaryOp =
Addition
| Subtraction
| Multiplication
| Division
| Exponentiation
| Concatenation
| GT
| GTE
| LT
| LTE
| EQ
| NE
| Or
| XOr
| And
| Equivalent
| NotEquivalent
| BinCustom String
deriving stock (Eq, Ord, Show, Data, Generic)
instance Binary BinaryOp
instance FirstParameter (ProgramUnit a) a
instance FirstParameter (Prefix a) a
instance FirstParameter (Suffix a) a
instance FirstParameter (Block a) a
instance FirstParameter (Statement a) a
instance FirstParameter (Argument a) a
instance FirstParameter (Use a) a
instance FirstParameter (TypeSpec a) a
instance FirstParameter (ProcDecl a) a
instance FirstParameter (ProcInterface a) a
instance FirstParameter (Selector a) a
instance FirstParameter (Attribute a) a
instance FirstParameter (ImpList a) a
instance FirstParameter (ImpElement a) a
instance FirstParameter (CommonGroup a) a
instance FirstParameter (DataGroup a) a
instance FirstParameter (StructureItem a) a
instance FirstParameter (UnionMap a) a
instance FirstParameter (Namelist a) a
instance FirstParameter (FormatItem a) a
instance FirstParameter (Expression a) a
instance FirstParameter (Index a) a
instance FirstParameter (DoSpecification a) a
instance FirstParameter (FlushSpec a) a
instance FirstParameter (Declarator a) a
instance FirstParameter (DimensionDeclarator a) a
instance FirstParameter (ControlPair a) a
instance FirstParameter (AllocOpt a) a
instance FirstParameter (ForallHeader a) a
instance FirstParameter (ForallHeaderPart a) a
instance SecondParameter (ProgramUnit a) SrcSpan
instance SecondParameter (Prefix a) SrcSpan
instance SecondParameter (Suffix a) SrcSpan
instance SecondParameter (Block a) SrcSpan
instance SecondParameter (Statement a) SrcSpan
instance SecondParameter (Argument a) SrcSpan
instance SecondParameter (Use a) SrcSpan
instance SecondParameter (TypeSpec a) SrcSpan
instance SecondParameter (ProcDecl a) SrcSpan
instance SecondParameter (ProcInterface a) SrcSpan
instance SecondParameter (Selector a) SrcSpan
instance SecondParameter (Attribute a) SrcSpan
instance SecondParameter (ImpList a) SrcSpan
instance SecondParameter (ImpElement a) SrcSpan
instance SecondParameter (CommonGroup a) SrcSpan
instance SecondParameter (DataGroup a) SrcSpan
instance SecondParameter (StructureItem a) SrcSpan
instance SecondParameter (UnionMap a) SrcSpan
instance SecondParameter (Namelist a) SrcSpan
instance SecondParameter (FormatItem a) SrcSpan
instance SecondParameter (Expression a) SrcSpan
instance SecondParameter (Index a) SrcSpan
instance SecondParameter (DoSpecification a) SrcSpan
instance SecondParameter (FlushSpec a) SrcSpan
instance SecondParameter (Declarator a) SrcSpan
instance SecondParameter (DimensionDeclarator a) SrcSpan
instance SecondParameter (ControlPair a) SrcSpan
instance SecondParameter (AllocOpt a) SrcSpan
instance SecondParameter (ForallHeader a) SrcSpan
instance SecondParameter (ForallHeaderPart a) SrcSpan
instance Annotated ProgramUnit
instance Annotated Block
instance Annotated Statement
instance Annotated Argument
instance Annotated Use
instance Annotated TypeSpec
instance Annotated ProcDecl
instance Annotated ProcInterface
instance Annotated Selector
instance Annotated Attribute
instance Annotated ImpList
instance Annotated ImpElement
instance Annotated CommonGroup
instance Annotated DataGroup
instance Annotated StructureItem
instance Annotated UnionMap
instance Annotated Namelist
instance Annotated FormatItem
instance Annotated Expression
instance Annotated Index
instance Annotated DoSpecification
instance Annotated FlushSpec
instance Annotated Declarator
instance Annotated DimensionDeclarator
instance Annotated ControlPair
instance Annotated AllocOpt
instance Annotated ForallHeader
instance Annotated ForallHeaderPart
instance Spanned (ProgramUnit a)
instance Spanned (Prefix a)
instance Spanned (Suffix a)
instance Spanned (Statement a)
instance Spanned (Argument a)
instance Spanned (Use a)
instance Spanned (Attribute a)
instance Spanned (TypeSpec a)
instance Spanned (ProcDecl a)
instance Spanned (ProcInterface a)
instance Spanned (Selector a)
instance Spanned (ImpList a)
instance Spanned (ImpElement a)
instance Spanned (Block a)
instance Spanned (CommonGroup a)
instance Spanned (DataGroup a)
instance Spanned (StructureItem a)
instance Spanned (UnionMap a)
instance Spanned (Namelist a)
instance Spanned (FormatItem a)
instance Spanned (Expression a)
instance Spanned (Index a)
instance Spanned (DoSpecification a)
instance Spanned (FlushSpec a)
instance Spanned (Declarator a)
instance Spanned (DimensionDeclarator a)
instance Spanned (ControlPair a)
instance Spanned (AllocOpt a)
instance Spanned (ForallHeader a)
instance Spanned (ForallHeaderPart a)
instance Spanned (ProgramFile a) where
getSpan (ProgramFile _ pus) =
case pus of
[] -> SrcSpan initPosition initPosition
pus' -> getSpan pus'
setSpan _ _ = error "Cannot set span to a program unit"
class Labeled f where
getLabel :: f a -> Maybe (Expression a)
getLastLabel :: f a -> Maybe (Expression a)
setLabel :: f a -> Expression a -> f a
instance Labeled Block where
getLabel (BlStatement _ _ l _) = l
getLabel (BlIf _ _ l _ _ _ _) = l
getLabel (BlCase _ _ l _ _ _ _ _) = l
getLabel (BlDo _ _ l _ _ _ _ _) = l
getLabel (BlDoWhile _ _ l _ _ _ _ _) = l
getLabel _ = Nothing
getLastLabel b@BlStatement{} = getLabel b
getLastLabel (BlIf _ _ _ _ _ _ l) = l
getLastLabel (BlCase _ _ _ _ _ _ _ l) = l
getLastLabel (BlDo _ _ _ _ _ _ _ l) = l
getLastLabel (BlDoWhile _ _ _ _ _ _ _ l) = l
getLastLabel _ = Nothing
setLabel (BlStatement a s _ st) l = BlStatement a s (Just l) st
setLabel (BlIf a s _ mn clauses elseBlock el) l = BlIf a s (Just l) mn clauses elseBlock el
setLabel (BlDo a s _ mn tl spec bs el) l = BlDo a s (Just l) mn tl spec bs el
setLabel (BlDoWhile a s _ n tl spec bs el) l = BlDoWhile a s (Just l) n tl spec bs el
setLabel b _ = b
data ProgramUnitName =
Named String
| NamelessBlockData
| NamelessComment
| NamelessMain
deriving stock (Ord, Eq, Show, Data, Generic)
instance Binary ProgramUnitName
instance NFData ProgramUnitName
class Named a where
getName :: a -> ProgramUnitName
setName :: ProgramUnitName -> a -> a
instance Named (ProgramUnit a) where
getName (PUMain _ _ Nothing _ _) = NamelessMain
getName (PUMain _ _ (Just n) _ _) = Named n
getName (PUModule _ _ n _ _) = Named n
getName (PUSubroutine _ _ _ n _ _ _) = Named n
getName (PUFunction _ _ _ _ n _ _ _ _) = Named n
getName (PUBlockData _ _ Nothing _) = NamelessBlockData
getName (PUBlockData _ _ (Just n) _) = Named n
getName PUComment{} = NamelessComment
setName (Named n) (PUMain a s _ b pus) = PUMain a s (Just n) b pus
setName _ (PUMain a s _ b pus) = PUMain a s Nothing b pus
setName (Named n) (PUModule a s _ b pus) = PUModule a s n b pus
setName (Named n) (PUSubroutine a s r _ p b subs) =
PUSubroutine a s r n p b subs
setName (Named n) (PUFunction a s r rec _ p res b subs) =
PUFunction a s r rec n p res b subs
setName (Named n) (PUBlockData a s _ b) = PUBlockData a s (Just n) b
setName _ (PUBlockData a s _ b) = PUBlockData a s Nothing b
-- Identity function if first arg is nameless or second arg is comment.
setName _ a = a
instance Out MetaInfo
instance Out a => Out (ProgramFile a)
instance Out a => Out (ProgramUnit a)
instance Out a => Out (Prefix a)
instance Out a => Out (Suffix a)
instance Out a => Out (Statement a)
instance Out a => Out (ProcDecl a)
instance Out a => Out (ProcInterface a)
instance Out Only
instance Out ModuleNature
instance Out a => Out (Argument a)
instance Out a => Out (ArgumentExpression a)
instance Out a => Out (Use a)
instance Out a => Out (Attribute a)
instance Out Intent
instance Out a => Out (ImpList a)
instance Out a => Out (ImpElement a)
instance Out a => Out (Comment a)
instance Out a => Out (Block a)
instance Out a => Out (CommonGroup a)
instance Out a => Out (DataGroup a)
instance Out a => Out (StructureItem a)
instance Out a => Out (UnionMap a)
instance Out a => Out (Namelist a)
instance Out a => Out (FormatItem a)
instance Out a => Out (Expression a)
instance Out a => Out (Index a)
instance Out a => Out (DoSpecification a)
instance Out a => Out (FlushSpec a)
instance Out a => Out (TypeSpec a)
instance Out a => Out (Selector a)
instance Out BaseType
instance Out a => Out (Declarator a)
instance Out a => Out (DimensionDeclarator a)
instance Out a => Out (DeclaratorType a)
instance Out a => Out (ControlPair a)
instance Out a => Out (AllocOpt a)
instance Out UnaryOp
instance Out BinaryOp
instance Out a => Out (ForallHeader a)
instance Out a => Out (ForallHeaderPart a)
-- Classifiers on statement and blocks ASTs
nonExecutableStatement :: FortranVersion -> Statement a -> Bool
nonExecutableStatement _ s = case s of
StIntent {} -> True
StOptional {} -> True
StPublic {} -> True
StPrivate {} -> True
StProtected {} -> True
StSave {} -> True
StDimension {} -> True
StAllocatable {} -> True
StAsynchronous {} -> True
StPointer {} -> True
StTarget {} -> True
StValue {} -> True
StVolatile {} -> True
StData {} -> True
StParameter {} -> True
StImplicit {} -> True
StNamelist {} -> True
StEquivalence {} -> True
StCommon {} -> True
StExternal {} -> True
StIntrinsic {} -> True
StUse {} -> True
StEntry {} -> True
StSequence {} -> True
StType {} -> True
StEndType {} -> True
StFormat {} -> True
StFormatBogus {} -> True
StInclude {} -> True
StDeclaration {} -> True
StStructure {} -> True
_ -> False
executableStatement :: FortranVersion -> Statement a -> Bool
-- Some statements are both executable and non-executable in Fortran 90 upwards
executableStatement v StFormat{} | v >= Fortran90 = True
executableStatement v StEntry{} | v >= Fortran90 = True
executableStatement v StData{} | v >= Fortran90 = True
executableStatement v s = not $ nonExecutableStatement v s
executableStatementBlock :: FortranVersion -> Block a -> Bool
executableStatementBlock v (BlStatement _ _ _ s) = executableStatement v s
executableStatementBlock _ _ = False
nonExecutableStatementBlock :: FortranVersion -> Block a -> Bool
nonExecutableStatementBlock v (BlStatement _ _ _ s) = nonExecutableStatement v s
nonExecutableStatementBlock _ BlInterface{} = True
nonExecutableStatementBlock _ _ = False
instance NFData a => NFData (ProgramFile a)
instance NFData a => NFData (ProgramUnit a)
instance NFData a => NFData (Block a)
instance NFData a => NFData (Expression a)
instance NFData a => NFData (TypeSpec a)
instance NFData a => NFData (Index a)
instance NFData a => NFData (Comment a)
instance NFData a => NFData (Statement a)
instance NFData a => NFData (ProcDecl a)
instance NFData a => NFData (ProcInterface a)
instance NFData a => NFData (DoSpecification a)
instance NFData a => NFData (Selector a)
instance NFData a => NFData (ForallHeader a)
instance NFData a => NFData (ForallHeaderPart a)
instance NFData a => NFData (Argument a)
instance NFData a => NFData (ArgumentExpression a)
instance NFData a => NFData (Use a)
instance NFData a => NFData (Attribute a)
instance NFData a => NFData (CommonGroup a)
instance NFData a => NFData (ControlPair a)
instance NFData a => NFData (AllocOpt a)
instance NFData a => NFData (DataGroup a)
instance NFData a => NFData (DimensionDeclarator a)
instance NFData a => NFData (Declarator a)
instance NFData a => NFData (DeclaratorType a)
instance NFData a => NFData (FormatItem a)
instance NFData a => NFData (FlushSpec a)
instance NFData a => NFData (ImpElement a)
instance NFData a => NFData (ImpList a)
instance NFData a => NFData (Namelist a)
instance NFData a => NFData (Prefix a)
instance NFData a => NFData (Suffix a)
instance NFData a => NFData (StructureItem a)
instance NFData a => NFData (UnionMap a)
instance NFData MetaInfo
instance NFData BaseType
instance NFData UnaryOp
instance NFData BinaryOp
instance NFData Only
instance NFData ModuleNature
instance NFData Intent
instance Out a => Out (NonEmpty a)