State-Machines and Code Generation: Difference between revisions
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We introduce the ability to generate code from state-machine diagrams in version 0.2.3 of the code generation feature plug-in. Code is generated from the diagram itself, and no additional mark-up of the model is required; that is, nothing over and above the usual mark-up required for Tasking Event-B, such as identifying non-typing/typing invariants, and guards etc. State-machine(s) are created in a machine using the existing state-machine plug-in, subject to the limitations described below. | We introduce the ability to generate code from state-machine diagrams in version 0.2.3 of the code generation feature plug-in. Code is generated from the diagram itself, and no additional mark-up of the model is required; that is, nothing over and above the usual mark-up required for Tasking Event-B, such as identifying non-typing/typing invariants, and guards etc. State-machine(s) are created in a machine using the existing state-machine plug-in, subject to the limitations described below. | ||
== Limitations/What Can Be Translated == | == Limitations/What Can Be Translated == | ||
The current code generation tool is restricted to generating code for a single Event-B machine containing one or more state-machines. We have yet to explore the decomposition/composition of machines containing state-machines. | The current code generation tool is restricted to generating code for a single Event-B machine containing one or more state-machines. We have yet to explore the decomposition/composition of machines containing state-machines. In principal we should be able to apply decomposition techniques to decompose the single Event-B machine with state-machines into a number of machines, with the state-machines distributed between them. | ||
Another limitation is that we do not handle nested state-machines, although this should be feasible. | |||
== Translations == | == Translations == |
Revision as of 07:10, 16 May 2012
Generating Code from State-Machine Diagrams
We introduce the ability to generate code from state-machine diagrams in version 0.2.3 of the code generation feature plug-in. Code is generated from the diagram itself, and no additional mark-up of the model is required; that is, nothing over and above the usual mark-up required for Tasking Event-B, such as identifying non-typing/typing invariants, and guards etc. State-machine(s) are created in a machine using the existing state-machine plug-in, subject to the limitations described below.
Limitations/What Can Be Translated
The current code generation tool is restricted to generating code for a single Event-B machine containing one or more state-machines. We have yet to explore the decomposition/composition of machines containing state-machines. In principal we should be able to apply decomposition techniques to decompose the single Event-B machine with state-machines into a number of machines, with the state-machines distributed between them.
Another limitation is that we do not handle nested state-machines, although this should be feasible.
Translations
Diagram here
Enumeration of states.
Initial state
Single outgoing transition
Multiple Outgoing transitions