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Inspector Eiffel

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Inspector Eiffel
Developer(s)Eiffel Software
Stable release
1.x / May 31, 2014 (2014-05-31)
    Operating systemLinux, Windows, OS X, Solaris
    Typestatic program analysis
    LicenseOpen source

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    Inspector Eiffel is an automated Eiffel software testing and static analysis program released by Eiffel Software, but produced as a result of a Masters Thesis project at ETH Zurich.[1]

    Basic Operations[edit]

    Inspector Eiffel is a Rule-based static code analysis tool which operates both from an embedded mode in Eiffel Studio and from command line. It utilizes the abstract syntax tree (AST) produced by the Eiffel compiler and then generates a control flow graph (CFG), which is computed by a module of code in the tool. The CFG and AST are then visited by a number of defined Rules. Violations of any Rule is reported to the user as a list of Error, Warning, Suggestion, and Hint items. Each rule violation reports precisely which rule was violated, where in the code the violation occurred, the names of any involved variables or other relevant data, and one or more ways to fix the problem.

    Inspector Eiffel is not a fully automated tool as it will not automatically fix identified problems. However, the tool library has been constructed to be extensible, so that automated rule violation fixing may be implemented in future. As of May 2014 fixing violations has been left to the discretion of the IDE user.

    Coverage Scope[edit]

    Rules in Inspector Eiffel have a scope, indicating how much code has to be analyzed at one time in order to detect a rule violation. The Rules are clustered into four main scopes:

    Analysis of individual instructions (simple or complex)
    Attributes, Routines, Commands, and Queries are examined as a unit
    Analysis of multiple feature-to-feature references in a class-wide scope
    Analysis of code structures spanning two or more classes (Client-Supplier)


    1. Zurfluh, Stefan; Tschannen, Julian; Meyer, Bertrand (April 1, 2014), Rule-Based Code Analysis (PDF), ETH Zurich, retrieved May 25, 2014

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