Expressions#

Expressions are implemented with classes that have Expression as top-level class. Protected expressions are implemented as ProtectedExpr.

Groups as defined in Groups are also Expression.

class ansys.scadeone.core.swan.Expression#

Bases: SwanItem

Base class for expressions.

get_full_path() → str#

Full path of the Swan construct.

This method is implemented by derived classes that correspond to a declaration at the module level (such as sensor, type, group, const, operator), or a module itself.

Returns:

str: Path within the owner and name of the Swan construct.

Raises:

ScadeOneException: If the method is not implemented for the current SwanItem type.

static set_owner(owner: SwanItem | IModel | None, children: SwanItem | Iterable[SwanItem] | None) → None#

Helper to set owner as the owner of each item in the Iterable items.

Parameters:

ownerSwanItem: Owner of the items.
childrenUnion[SwanItem, Iterable[SwanItem], None]: Items to set owner.

property at: Identifier | None#: Memory constrained location.

property is_protected: bool#: Tell if a construct item is syntactically protected with some markup and is stored as a string (without the markup).

property model: IModel#: Return model containing the Swan item.

property module: ModuleBase | None#

Module containing the item.

Returns:: ModuleBase: module container, see ModuleBody and ModuleInterface or None if the object is itself a module.

property owner: SwanItem | IModel | None#: Owner of current Swan construct.

class ansys.scadeone.core.swan.ProtectedExpr(data: str, markup: str | None = 'syntax')#

Bases: Expression, ProtectedItem

Protected expression, i.e., saved as string if syntactically incorrect.

get_full_path() → str#

Full path of the Swan construct.

This method is implemented by derived classes that correspond to a declaration at the module level (such as sensor, type, group, const, operator), or a module itself.

Returns:

str: Path within the owner and name of the Swan construct.

Raises:

ScadeOneException: If the method is not implemented for the current SwanItem type.

has_markup(markup: str) → bool#

Check if protected data has the specified markup.

Parameters:

markupstr: String markup.

Returns:

result: bool: True when instance markup is same as parameter.

static set_owner(owner: SwanItem | IModel | None, children: SwanItem | Iterable[SwanItem] | None) → None#

Helper to set owner as the owner of each item in the Iterable items.

Parameters:

ownerSwanItem: Owner of the items.
childrenUnion[SwanItem, Iterable[SwanItem], None]: Items to set owner.

property at: Identifier | None#: Memory constrained location.

property data: str#

Protected data between markups.

Returns:

str: Protected data.

property is_protected: bool#: Tell if item is syntactically protected and provided as a string.

property markup: str#

Protection markup.

Returns:

str: Markup string.

property model: IModel#: Return model containing the Swan item.

property module: ModuleBase | None#

Module containing the item.

Returns:: ModuleBase: module container, see ModuleBody and ModuleInterface or None if the object is itself a module.

property owner: SwanItem | IModel | None#: Owner of current Swan construct.