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Visualisation of Static Comparison of Semantic Equivalence of Different Versions of Software Written in C
Petr, Lukáš ; Fiedor, Tomáš (referee) ; Vojnar, Tomáš (advisor)
The aim of this thesis is to create a more comprehensive presentation of results of the DiffKemp tool, which is used for static analysis of semantic differences in large projects written in C. Currently, DiffKemp displays all information about the found differences in an unstructured text which is often confusing for users. To solve this problem, a new output of the DiffKemp tool was created in this thesis, which provides the results in a serialized form using the YAML format. This output is subsequently processed and displayed using a newly created results browser, implemented as a web application using the React library, the Bootstrap framework, and the react-diff-view package. In the browser, we focus on providing an additional context in the form of source codes of the analyzed functions, and on facilitation of navigation and orientation in the found differences as well as in the provided information such as the call stacks. A comparison of the newly created browser with the original solution has shown that it is easier for the user to recognize changes in the provided call stacks and that the new browser allows him to navigate faster in the results as well as between relationships of the found differences and analysed parts.
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