concepts.dsl.executors.executor_base.DSLExecutorBase#

class DSLExecutorBase[source]#

Bases: ABC

The baseclass for all executors of domain-specific languages.

Methods

`execute`(expression)	Execute an expression.
`get_function_implementation`(name)	Get the implementation of a function.
`has_function_implementation`(name)	Check whether the executor has an implementation for a function.
`register_function`(name, func)	Register an implementation for a function to the executor.
`register_function_implementation`(name, func)	Register an implementation for a function.

Attributes

`domain`	The domain of the executor.
`function_implementations`	The implementations of functions, which is a mapping from function names to implementations.

__init__(domain)[source]#

Initialize the executor.

Parameters:: domain (DSLDomainBase) – the domain of the executor.

__new__(**kwargs)#

abstract execute(expression)[source]#

Execute an expression.

Parameters:: expression (Expression) – the expression to execute.
Returns:: the result of the execution.
Return type:: Any

get_function_implementation(name)[source]#

Get the implementation of a function. When the executor does not have an implementation for the function, the implementation of the function in the domain will be returned. If that is also None, a KeyError will be raised.

Parameters:: name (str) – the name of the function.
Returns:: the implementation of the function.
Return type:: Callable

has_function_implementation(name)[source]#

Check whether the executor has an implementation for a function.

Parameters:: name (str) – the name of the function.
Returns:: whether the executor has an implementation for the function.
Return type:: bool

register_function(name, func)[source]#

Parameters:

name (str) – the name of the function.
func (Callable) – the implementation of the function.

register_function_implementation(name, func)[source]#

Parameters:

name (str) – the name of the function.
func (Callable) – the implementation of the function.

property domain: DSLDomainBase#: The domain of the executor.

property function_implementations: Dict[str, Callable]#: The implementations of functions, which is a mapping from function names to implementations.