Caramel

A program dependence graph and program slicer for the Swift programming language.

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Caveats

Caramel supports only the following language features:

• Declaration of constants
• Declaration of variables
• for in statements
• guard statements (including optional binding)
• if statements (including optional binding)
• repeat while statements (including optional binding)
• switch statements
• while statements (including optional binding)
• Assignment expressions
• Binary operator expressions

Caramel is an intraprocedural slicer, it can only slice one function at a time.

Caramel does not work with mutating functions. It assumes assignments are only made at assignment statements.

Caramel is not designed to work with non-scalar values (such as arrays, structs, tuples) and can result in incorectness and/or imprecision in these cases.

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To download and run:

1. Make sure you have Swift installed
2. run git clone https://github.com/jaredkhan/Caramel
3. run cd Caramel
4. run swift test to run the test suite
5. run swift run Caramel <file_path> to run Caramel on a certain file. You will be prompted for a line and column number and provided with a highlighted source code output.