This project is no longer maintained. However, a fork is being maintained: https://github.com/opprop/checker-framework-inference

Checker Framework Inference

This project is a general type inference framework, built upon the Checker Framework.

Given a program with no type annotations, Checker Framework Inference produces a program with type annotations.

By contrast, given a program with type annotations, the Checker Framework determines verifies the program's correctness or reveals errors in it.

Developer Notes

Continuous integration status of master:

If you want to extend the framework for your own type system or add additional constraint solvers, please send us mail.

The checker-framework-inference Google Drive folder contains additional documents for developers:

https://drive.google.com/drive/u/1/folders/0B7vOZvme6aAOfjQ0bWlFU1VoeVZCVjExVmJLM0lGY3NBV0VLcENYdm03c0RCNGFzZURHX2c

That information is being moved to here in the repository.

Configure Eclipse to edit Checker Framework Inference

The instructions here assumes you have cloned this project into a folder called checker-framework-inference.

1. Follow the instructions in the Checker Framework Manual to download, build, and configure Eclipse to edit the Checker Framework. The Checker Framework Inference Eclipse project depends on the eclipse projects from Checker Framework.

2. Follow the instructions below to build Checker Framework Inference

3. Build the dependencies jar file:

./gradlew dependenciesJar

4. Enter the main Eclipse working screen and in the “File” menu, select “Import” -> “General” -> “Existing Projects into workspace”. After the “Import Projects” window appears, select “Select Root Directory”, and select the checker-framework-inference directory. Eclipse should successfully build all the imported projects.

Requirements

You will need a JDK (version 8) and Gradle.

Following the instructions in the Checker Framework manual to install the Checker Framework from source.

NOTE: Gradle on Ubuntu 14.10 hard-codes JAVA_HOME. To change this, edit /usr/share/gradle/bin/gradle and replace

    export JAVA_HOME=/usr/lib/jvm/default-java

with

    [ -n "$JAVA_HOME" ] || export JAVA_HOME=/usr/lib/jvm/default-java

Building

To build:

./gradlew dist

Execution

Verify you have all of the requirements.

./scripts/inference

is the script used to run inference.

Example:

./scripts/inference --logLevel FINE --mode ROUNDTRIP --checker ostrusted.OsTrustedChecker --solver checkers.inference.solver.PropagationSolver -afud /path/to/Annotation/File/Utilities/output/directory [List of files]

There are a couple of required options:

• --mode Specifies what the tools should do. Available options are [INFER, TYPECHECK, ROUNDTRIP, ROUNDTRIP_TYPECHECK]

  • INFER: Generates and solves the constraints and writes the results to default.jaif file

  • TYPECHECK: Typechecks the existin code

  • ROUNDTRIP: Generates and solves the constraints and then inserts the results back into the original source code

  • ROUNDTRIP_TYPECHECK: Executes roundtrip and then typechecks the result

• --checker Specifies which checker to run. The two most supported checkers at the moment are checkers.ostrusted.OsTrustedChecker and checkers.tainting.TaintingChecker

• --solver Which solver to use on the constraints.

• --targetclasspath The classpath that is required by target program.

checkers.inference.solver.PropagationSolver is the only real solver at the moment. TODO: update

Omiting the solver will create an output that numbers all of the annotation positions in the program.

checkers.inference.solver.DebugSolver will output all of the constraints generated.

Other options can be found by ./scripts/inference --help.