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Increment/decrement statements previously produced three control-flow nodes: an 'implicit-one' node for the constant 1, an 'incdec-rhs' node for the 'operand + 1' value, and the write node. The implicit-one node existed only to serve as the right operand of the increment's binary operation model. Remove the implicit-one node, modelling the implicit constant 1 directly on the incdec-rhs instruction. This saves one CFG node per inc/dec. The inc/dec disjunct of BinaryOperationNode is dropped as well; it only fed string-concatenation taint (impossible for ++/--) and GVN of a synthetic node, so no data-flow results are lost.
Go analysis support for CodeQL
This sub-folder contains the extractor, CodeQL libraries, and queries that power Go support for CodeQL.
It contains two major components:
- an extractor, itself written in Go, that parses Go source code and converts it into a database that can be queried using CodeQL.
- static analysis libraries and queries written in CodeQL that can be used to analyze such a database to find coding mistakes or security vulnerabilities.
Usage
To analyze a Go codebase, either use the CodeQL command-line interface to create a database yourself, or download a pre-built database from GitHub.com. You can then run any of the queries contained in this repository either on the command line or using the VS Code extension.
Contributions
Contributions are welcome! Please see our contribution guidelines and our code of conduct for details on how to participate in our community.
Licensing
The code in this repository is licensed under the MIT license.