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Maks Rafalko bac91b426e Correctly determine Type of Node when PHP-Parser's namespaces are prefixed
Hi there,

I'm working on mutation testing framework ([Infection](https://github.com/infection/infection/)) that is distributed as a PHAR. One of this goal is to run target project's test suite against mutated code. Since we use reflection and load project's autoloader, we want to avoid potential conflicts between vendor files of Infection itself and the target project.

To avoid this issue, there is a project calld [PHP-Scoper](https://github.com/humbug/php-scoper). What it does is it prefixes all the namespaces of the library (including vendor folder) with some character(s), for example namespace `Infection\Mutator\PublicVisibility` is transformed to `ScoperAbc123\Infection\Mutant\PublicVisibility`.

But since it also prefixes vendor folder, PHP-Parser's classes are prefixed as well and `NodeAbstract::getType()` after this prefixing works incorrectly.

There is a hardcoded number `15` which means to remove `'PhpParser\Node'` (length=15) substring from the FQCN.

Code:

```php
// PHPParser\Node\Stmt\Declare_ -> Stmt_Declare

return strtr(substr(rtrim(get_class($this), '_'), 15), '\\', '_');
```

What I suggest is a little be more dynamic solution, to correctly extract class name (type) from the ***prefixed*** FQCL:

`ScoperAbc123\PHPParser\Node\Stmt\Declare_` -> `Stmt_Declare`
2017-11-12 21:11:41 +01:00
bin Fix typo with-posititions => with-positions 2017-02-08 23:54:08 +01:00
doc Update docs 2016-10-29 13:37:47 +02:00
grammar Preserve comments on empty blocks (#382) 2017-10-01 16:54:43 +02:00
lib Correctly determine Type of Node when PHP-Parser's namespaces are prefixed 2017-11-12 21:11:41 +01:00
test Add setDocComment() to namespace build (#437) 2017-11-04 12:43:02 +01:00
test_old Update run-php-src to use 7.1.0 2016-12-11 16:47:47 +01:00
.gitignore Use composer PSR-4 autoloader 2015-09-16 22:02:00 +09:00
.travis.yml Switch to dist: trusty, so HHVM runs 2017-06-03 15:25:50 +02:00
CHANGELOG.md Release PHP-Parser 3.1.2 2017-11-04 12:48:34 +01:00
composer.json Use phpunit 5 if we can rather than 4 (#301) 2016-09-16 17:41:21 +02:00
LICENSE fix typos 2011-06-26 18:45:19 +02:00
phpunit.xml.dist Split parsing tests into code tests and other stuff 2015-06-20 11:44:29 +02:00
README.md Release PHP-Parser 3.0 2016-11-30 19:20:29 +01:00
UPGRADE-1.0.md Fix typos 2014-09-12 14:44:32 +02:00
UPGRADE-2.0.md Release PHP-Parser 2.0.0 2015-12-04 16:28:43 +01:00
UPGRADE-3.0.md Add UPGRADE note about NameResolver changes 2016-12-07 20:09:23 +01:00

PHP Parser

Build Status Coverage Status

This is a PHP 5.2 to PHP 7.1 parser written in PHP. Its purpose is to simplify static code analysis and manipulation.

Documentation for version 3.x (stable; for running on PHP >= 5.5; for parsing PHP 5.2 to PHP 7.1).

Documentation for version 2.x (stable; for running on PHP >= 5.4; for parsing PHP 5.2 to PHP 7.0).

Documentation for version 1.x (unsupported; for running on PHP >= 5.3; for parsing PHP 5.2 to PHP 5.6).

In a Nutshell

The parser turns PHP source code into an abstract syntax tree. For example, if you pass the following code into the parser:

<?php
echo 'Hi', 'World';
hello\world('foo', 'bar' . 'baz');

You'll get a syntax tree looking roughly like this:

array(
    0: Stmt_Echo(
        exprs: array(
            0: Scalar_String(
                value: Hi
            )
            1: Scalar_String(
                value: World
            )
        )
    )
    1: Expr_FuncCall(
        name: Name(
            parts: array(
                0: hello
                1: world
            )
        )
        args: array(
            0: Arg(
                value: Scalar_String(
                    value: foo
                )
                byRef: false
            )
            1: Arg(
                value: Expr_Concat(
                    left: Scalar_String(
                        value: bar
                    )
                    right: Scalar_String(
                        value: baz
                    )
                )
                byRef: false
            )
        )
    )
)

You can then work with this syntax tree, for example to statically analyze the code (e.g. to find programming errors or security issues).

Additionally, you can convert a syntax tree back to PHP code. This allows you to do code preprocessing (like automatedly porting code to older PHP versions).

Installation

The preferred installation method is composer:

php composer.phar require nikic/php-parser

Documentation

  1. Introduction
  2. Usage of basic components
  3. Other node tree representations
  4. Code generation

Component documentation:

  1. Error handling
  2. Lexer