fparser.two.Fortran2008.data_component_def_stmt_r436

Module containing Fortran2008 Data_Component_Def_Stmt rule R436

Module Contents

Classes

Data_Component_Def_Stmt

Fortran 2008 rule 436.

class fparser.two.Fortran2008.data_component_def_stmt_r436.Data_Component_Def_Stmt(string, parent_cls=None)

Bases: fparser.two.Fortran2003.Data_Component_Def_Stmt

Fortran 2008 rule 436.

data-component-def-stmt is declaration-type-spec [
         [ , component-attr-spec-list ] :: ] component-decl-list

The implementation of this rule does not add anything to the Fortran 2003 variant but reimplements the match method identical to Fortran 2003 as otherwise the generated Fortran 2008 variant of Component_Attr_Spec_List would not be used. Unfortunately, the required attr_spec_list_cls can not simply be provided as a class property since the relevant class is only generated at the end of this file using the use_names class property of this class.

Associated constraints are:

“C439 (R436) No component-attr-spec shall appear more than once in a given

component-def-stmt.”

“C440 (R436) If neither the POINTER nor the ALLOCATABLE attribute is

specified, the declaration-type-spec in the component-def-stmt shall specify an intrinsic type or a previously defined derived type.”

“C441 (R436) If the POINTER or ALLOCATABLE attribute is specified, each

component-array-spec shall be a deferred-shape-spec-list.”

“C442 (R436) If a coarray-spec appears, it shall be a

deferred-coshape-spec-list and the component shall have the ALLOCATABLE attribute.”

“C443 (R436) If a coarray-spec appears, the component shall not be of type

C_PTR or C_FUNPTR.”

“C445 (R436) If neither the POINTER nor the ALLOCATABLE attribute is

specified, each component-array-spec shall be an explicit-shape-spec-list.”

“C447 (R436) A component shall not have both the ALLOCATABLE and POINTER

attributes.”

“C448 (R436) If the CONTIGUOUS attribute is specified, the component shall

be an array with the POINTER attribute.”

“C457 (R436) If component-initialization appears, a double-colon separator

shall appear before the component-decl-list.”

“C458 (R436) If component-initialization appears, every type parameter and

array bound of the component shall be a colon or constant expression.

“C459 (R436) If => appears in component-initialization, POINTER shall

appear in the component-attr-spec-list. If = appears in component-initialization, neither POINTER nor ALLOCATABLE shall appear in the component-attr-spec-list.”

C439-C443, C445, C447-C448, C457-C459 are currently not checked - issue #258.

static match(string)

Implements the matching of a data component definition statement.

Parameters:

string (str) – the reader or string to match as a data component definition statement.

Returns:

a 3-tuple containing declaration type specification, component attribute specification and component declaration list if there is a match or None if there is no match.

Return type:

NoneType or (fparser.two.Fortran2003.Declaration_Type_Spec, fparser.two.Fortran2008.Component_Attr_Spec_List, fparser.two.Fortran2003.Component_Decl_List)