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11 commits

Author SHA1 Message Date
Jakub Vrana
3de4984256 Find needed classes in catch, instanceof and newv()
Test Plan:
  try {} catch (X $ex) {}
  $a instanceof X;
  newv('X');

Linted Phabricator.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D6143
2013-06-06 07:25:08 -07:00
Jakub Vrana
f3e32d8366 Find classes used in call_user_func()
Summary:
Also fix false positive for call_user_func('C::f').
Also fix false positive for call_user_func("$f").
Also centralize handling of magic classes.

Test Plan:
  call_user_func("$f");
  call_user_func('C::f');
  call_user_func(array('C', 'f'));
  call_user_func(array(1 => 'f', 0 => 'C'));

Linted Phabricator.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D6137
2013-06-05 19:19:06 -07:00
Jakub Vrana
5336f4bcf0 Verify classes used in typehints
Summary: Also support `SomeInterface::CONSTANT`.

Test Plan:
  interface I {
    const A = 1;
  }
  I::A;

  function f(stdClass $a, array $b, Iterator $c) {
  }

Linted Phabricator.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D6135
2013-06-05 13:53:43 -07:00
vrana
901f12dcb9 Allow new self in linter
Summary: Also allow `sTaTiC::$x` which is a valid PHP (contrary to `sElF::$x` which is invalid PHP but I allowed that too).

Test Plan:
  new self;

Reviewers: epriestley

Reviewed By: epriestley

CC: wez, aran, Korvin

Differential Revision: https://secure.phabricator.com/D5241
2013-03-05 13:51:58 -08:00
vrana
66d204be81 Delete license headers from files
Summary:
This commit doesn't change license of any file. It just makes the license implicit (inherited from LICENSE file in the root directory).

We are removing the headers for these reasons:

- It wastes space in editors, less code is visible in editor upon opening a file.
- It brings noise to diff of the first change of any file every year.
- It confuses Git file copy detection when creating small files.
- We don't have an explicit license header in other files (JS, CSS, images, documentation).
- Using license header in every file is not obligatory: http://www.apache.org/dev/apply-license.html#new.

This change is approved by Alma Chao (Lead Open Source and IP Counsel at Facebook).

Test Plan: Verified that the license survived only in unit tests and LICENSE file.

Reviewers: epriestley, btrahan, edward

Reviewed By: epriestley

CC: aran, Korvin, davidrecordon

Maniphest Tasks: T2035

Differential Revision: https://secure.phabricator.com/D3881
2012-11-05 11:16:24 -08:00
epriestley
5be656aa57 Include extension classes in the builtin list
Summary: Just like we ship with a list of extension functions, add a list of extension classes so people stop getting lint errors about DOMDocument just because some linter uses it.

Test Plan: Ran "arc lint".

Reviewers: vrana, btrahan, codeblock

Reviewed By: vrana

CC: aran

Differential Revision: https://secure.phabricator.com/D3082
2012-07-26 14:46:53 -07:00
epriestley
264d915e13 Include common extensions in symbol mapper
Summary:
Spamming everyone who got bitten by this. We upgraded the libphutil library system recently, but the "use of undeclared function" lint check used to run only on files you touched and now runs on every file in every library you use. This means that if you don't have pcntl or ldap installed, you'll get errors about use of functions from them on every change.

Instead, ship with a list of functions which are provided by extensions that we'll ignore when calculating dependencies, so not having pcntl doesn't mean you have to excuse through irrelevant errrors every time.

Test Plan: Ran script with an unknown function, got it in the map; added it to the extension list, it vanished from the map.

Reviewers: vrana, btrahan, allenjohnashton, ddfisher, keebuhm, phleet, nodren

Reviewed By: vrana

CC: aran

Maniphest Tasks: T1347

Differential Revision: https://secure.phabricator.com/D2728
2012-06-12 12:54:26 -07:00
epriestley
6f6fde84cc Improve syntax error output from "arc liberate"
Summary:
Currently, when a file has a syntax error and you run "arc liberate", the symbol analyzer will fail and throw, which will make the mapper fail and throw, which will make arc fail and throw. This gives you a stack trace pile three scripts deep which is a giant pain to analyze visually.

Instead, raise a clear message.

Test Plan: Ran "arc liberate" with a syntax error. Got useful diagnostic output instead of 30 pages of stack mess.

Reviewers: vrana, btrahan

Reviewed By: vrana

CC: aran

Differential Revision: https://secure.phabricator.com/D2659
2012-06-06 10:53:02 -07:00
epriestley
7ae1a0ec40 Minor, address feedback from @vrana on D2585.
Auditors: vrana
2012-05-30 07:33:46 -07:00
epriestley
4eb6b97097 Export extends/implements information in the new libphutil library map
Summary:
For `PhutilSymbolLoader` queries which include `setAncestorClass()`, we need the map of which classes/interfaces things extend/implement to issue the query efficiently.

Without this map, we need to load //every// class/interface and then do `is_subclass_of()`. This is doable, but not very performant if we don't have php-fpm warmup. There are a few performance-sensitive interfaces where we run queries like this, including some in Arcanist, where we'll never have warmup.

This map isn't particularly difficult to generate or maintain, so just include it in symbol generation and in the library map.

Also set parallelism with a flag, since it was arbitrarily hard-coded and adding flags is easy. 8 actually seems approximately optimal on my machine at least, though.

Test Plan: Ran "phutil_rebuild_map.php", opened library map, got a reasonable extension map.

Reviewers: vrana, btrahan

Reviewed By: vrana

CC: aran

Maniphest Tasks: T1103

Differential Revision: https://secure.phabricator.com/D2585
2012-05-29 11:17:34 -07:00
epriestley
81976ff2ff Provide a simpler analyzer script for killing __init__.php
Summary:
The `phutil_analyzer.php` script currently analyzes entire modules and is fairly complex. We don't need or want this in a post-__init__.php world.

This is basically a simplified version of `phutil_analyzer.php`, which takes one file and emits symbols.

Test Plan:
```$ ./scripts/phutil_symbols.php resources/test/diverse_symbols.php
{
  "have" : {
    "function"  : {
      "f" : 348
    },
    "class"     : {
      "L"      : 308,
      "A"      : 497,
      "C"      : 509,
      "D"      : 531,
      "CLocal" : 627
    },
    "interface" : {
      "ILocal" : 593
    }
  },
  "need" : {
    "function"  : {
      "g" : 402,
      "h" : 462
    },
    "class"     : {
      "B"         : 519,
      "INonlocal" : 642,
      "U"         : 552,
      "X"         : 421,
      "V"         : 557,
      "W"         : 565,
      "P"         : 572
    },
    "interface" : {
      "IForeign" : 608
    }
  }
}```

Reviewers: vrana, nh, btrahan

Reviewed By: vrana

CC: aran

Maniphest Tasks: T1103

Differential Revision: https://secure.phabricator.com/D2561
2012-05-24 10:56:56 -07:00