morria / code2seq-paths-php
Produce function paths suitable for use by code2seq
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Type:project
Requires
- php: >7.4
- ext-ast: *
Requires (Dev)
- phan/phan: ^5.4
- phpunit/phpunit: ^10.0
README
Read PHP source code and produce a file suitable for use by code2seq for training and evaluating a model.
Usage
To build the package just run composer install
. Make sure you have PHP installed along with
the php-ast extension. You can also use the Docker
container with all dependencies defined in .devcontainer
.
Once built you can run the tool via
./bin/code2seq-paths path/to/php/dir > method_contexts.c2s
and from here you can use the file method_contexts.c2s
as input to code2seq.
Keep in mind that the file produced here will need to be preprocessed within code2seq
.
TODO: describe how to do that.
Flags
You can see the available flags via ./bin/code2seq-paths --help
.
Usage: ./bin/code2seq-paths [options] [files...]]
-h, --help
Get this help information
-s SEED, --seed SEED
The seed to use before shuffling the target contexts.
-l LENGTH, --max-length=LENGTH
The maximum length of a target context. Defaults to unbounded.
-i, --ids
Use IDs rather than names for context nodes. Defaults to false.
...
All other options will be treated as file names to
read as PHP source.
Docker
To avoid setting up a proper environment, you can run code2seq-paths-php
from
a Docker image as follows.
docker pull morria/code2seq-paths-php
docker run --name code2seq-paths-php --volume PATH_TO_SOURCE:/workspace morria/code2seq-paths-php /workspace/
To build the container from source run the following.
composer install
docker build -t morria/code2seq-paths-php .
Output Format
The output is structured as follows.
LINE := FUNCTION_NAME WS CONTEXT_LIST;
FUNCTION_NAME := string;
WS := ' ';
CONTEXT_LIST := SOURCE_TERMINAL ',' NODE_LIST ',' TARGET_TERMINAL;
SOURCE_TERMINAL := TOKEN_LIST;
TARGET_TERMINAL := TOKEN_LIST;
NODE_LIST := NODE
| NODE '|' NODE_LIST
;
NODE := string;
For the input code
<?php function f(int $x) { return $x; }
the following output will be produced
f long,parameter,x long,parameter|function|return|variable,x x,parameter,long x,parameter|function|return|variable,x x,variable|return|function|parameter,long x,variable|return|function|parameter,x
Dependencies
To run code2seq-paths
you'll need to have several dependencies installed on your system.
These can be installed on Ubuntu machines via
sudo apt-get install php php-ast composer
Alternatively you can use the .devcontainer/Dockerfile
to build
a system suitable for running code2seq-paths
.
cd .devcontainer
docker compose build
Development
To run tests you can run ./bin/test
which will execute all PHPUnit tests.