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CLANG Parser

Parses C source code to create an abstract syntax tree. The definition of "small C", the language to be parsed, is as follows:

#include
#define

P ::= x=e; | if (b) P else P | while (b) P | for (e; e; e) P | return e; | return;
        | { P ... P } | e++; | ++e; | e--; | --e;
e ::= int-constants (..., -1, 0, 1, 2, ...) | variables | a[e]
        for array name a
        | e + e | e - e | e * e | e / e | e % e | (e) | f(e, ..., e)
        for function name f
b ::= e == e | e != e | e < e | e > e | e <= e | e >= e | (e) | !e
        | e && e | e '||' e

type ::= void | bool | integer | float | double
integer ::= [signed | unsigned] (char | short | int | long | long long)
次元配列
関数定義と呼び出し
グローバル変数
ローカル変数 (関数定義のはじめだけ)

Requirement

  • clang plugin by facebook infer

Comand line interfaces

.mas is a file to which Marshal saves clang abstract syntax trees in OCaml data.

parse

$ export CLANG_TO_YOJSON=<PATH TO FACEBOOK CLANG PLUGIN>/clang2yojson.sh
$ parse <dir>

parses each <name>.c and produces <name>.mas in each subdirectory of the directory <dir>.

prettyprint

$ prettyprint <name>.mas

prettyprints abstract syntax trees in <name>.mas to the standard output.

clang2cabs

$ clang2cabs <name>.mas

translates the clang abstract syntax trees in <name>.mas into a CABS file <name>.cabs

Installation

The project can be installed with or without opam.

Without opam, you can run the following which relies directly on dune:

$ git clone [email protected]:proof-ninja/clang2cabs.git
$ cd clang2cabs/
$ make
$ make install

With opam, you can install the current development version of your project as a single opam package. It will override the currently installed package of the same name, if any:

$ opam pin add -k path clang2cabs .

For more information on opam pin, please consult the opam documentation

ocamldoc API

https://proof-ninja.github.io/clang2cabs/