rust-code-analysis-cli allows to extract some information from the nodes which compose the Abstract Syntax Tree (AST) of a source code.

To know if there are some syntactic errors in your code, run:

rust-code-analysis-cli -p /path/to/your/file/or/directory -I "*.ext" -f -error

The -p option represents the path to a file or a directory. If a directory is passed as input, rust-code-analysis-cli computes the metrics for each file contained in it. The -I option is a glob filter used to consider only the files written in the language defined by the extension of the file. The -f option instead searches all nodes of a certain type. In the case above, we are looking for all the erroneous nodes present in the code.

It is also possible to count the number of nodes of a certain type using the --count option:

rust-code-analysis-cli -p /path/to/your/file/or/directory -I "*.ext" --count -error

If you want to print the AST of a source code, run the following command:

rust-code-analysis-cli -p /path/to/your/file/or/directory -d

The -d option prints the entire AST on the shell.

Commands can be run on a single portion of the code using the --ls and --le options. The former represents the starting line of the code to be considered, while the latter its ending line. For example, if we want to print the AST of a single function which starts at line 5 and ends at line 10, we need to launch this command:

rust-code-analysis-cli -p /path/to/your/file/or/directory -d --ls 5 --le 10