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Code Issues Releases Wiki Activity

Allow lint to correct the spelling of builtin symbols

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Summary: Ref T13598. This builds on D21537 and adds support for correcting the capitalization of builtin systems.

Test Plan:
  - Linted a file that uses "ExCePtIoN", got a lint correction.

Maniphest Tasks: T13598

Differential Revision: https://secure.phabricator.com/D21538
This commit is contained in:
epriestley 2021-02-03 11:36:09 -08:00
parent 08dbbbba5a
commit e2b6439a73
3 changed files with 110 additions and 33 deletions
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65
src/lint/linter/ArcanistPhutilLibraryLinter.php
View file

@ -53,6 +53,14 @@ final class ArcanistPhutilLibraryLinter extends ArcanistLinter {
}
public function willLintPaths(array $paths) {
$libtype_map = array(
'class' => 'class',
'function' => 'function',
'interface' => 'class',
'class/interface' => 'class',
);
// NOTE: For now, we completely ignore paths and just lint every library in
// its entirety. This is simpler and relatively fast because we don't do any
// detailed checks and all the data we need for this comes out of module
@ -61,6 +69,26 @@ final class ArcanistPhutilLibraryLinter extends ArcanistLinter {
$bootloader = PhutilBootloader::getInstance();
$libraries = $bootloader->getAllLibraries();
// Load all the builtin symbols first.
$builtin_map = PhutilLibraryMapBuilder::newBuiltinMap();
$builtin_map = $builtin_map['have'];
$normal_symbols = array();
$all_symbols = array();
foreach ($builtin_map as $type => $builtin_symbols) {
$libtype = $libtype_map[$type];
foreach ($builtin_symbols as $builtin_symbol => $ignored) {
$normal_symbol = $this->normalizeSymbol($builtin_symbol);
$normal_symbols[$type][$normal_symbol] = $builtin_symbol;
$all_symbols[$libtype][$builtin_symbol] = array(
'library' => null,
'file' => null,
'offset' => null,
);
}
}
// Load the up-to-date map for each library, without loading the library
// itself. This means lint results will accurately reflect the state of
// the working copy.
@ -80,7 +108,6 @@ final class ArcanistPhutilLibraryLinter extends ArcanistLinter {
}
}
$all_symbols = array();
foreach ($symbols as $library => $map) {
// Check for files which declare more than one class/interface in the same
// file, or mix function definitions with class/interface definitions. We
@ -125,20 +152,12 @@ final class ArcanistPhutilLibraryLinter extends ArcanistLinter {
}
}
$libtype_map = array(
'class' => 'class',
'function' => 'function',
'interface' => 'class',
'class/interface' => 'class',
);
// Check for duplicate symbols: two files providing the same class or
// function. While doing this, we also build a map of normalized symbol
// names to original symbol names: we want a definition of "idx()" to
// collide with a definition of "IdX()", and want to perform spelling
// corrections later.
$normal_symbols = array();
foreach ($map as $file => $spec) {
$have = idx($spec, 'have', array());
foreach (array('class', 'function', 'interface') as $type) {
@ -160,12 +179,20 @@ final class ArcanistPhutilLibraryLinter extends ArcanistLinter {
$old_src = $all_symbols[$libtype][$old_symbol]['file'];
$old_lib = $all_symbols[$libtype][$old_symbol]['library'];
$this->raiseLintInLibrary(
$library,
// If these values are "null", it means that the symbol is a
// builtin symbol provided by PHP or a PHP extension.
if ($old_lib === null) {
$message = pht(
'Definition of symbol "%s" (of type "%s") in file "%s" in '.
'library "%s" duplicates builtin definition of the same '.
'symbol.',
$symbol,
$type,
$file,
$offset,
self::LINT_DUPLICATE_SYMBOL,
pht(
$library);
} else {
$message = pht(
'Definition of symbol "%s" (of type "%s") in file "%s" in '.
'library "%s" duplicates prior definition in file "%s" in '.
'library "%s".',
@ -174,7 +201,15 @@ final class ArcanistPhutilLibraryLinter extends ArcanistLinter {
$file,
$library,
$old_src,
$old_lib));
$old_lib);
}
$this->raiseLintInLibrary(
$library,
$file,
$offset,
self::LINT_DUPLICATE_SYMBOL,
$message);
}
}
}

22
src/moduleutils/PhutilLibraryMapBuilder.php
View file

@ -266,9 +266,29 @@ final class PhutilLibraryMapBuilder extends Phobject {
*/
private function buildSymbolAnalysisFuture($file) {
$absolute_file = $this->getPath($file);
return self::newExtractSymbolsFuture(
array(),
array($absolute_file));
}
private static function newExtractSymbolsFuture(array $flags, array $paths) {
$bin = dirname(__FILE__).'/../../support/lib/extract-symbols.php';
return new ExecFuture('php -f %R -- --ugly %R', $bin, $absolute_file);
return new ExecFuture(
'php -f %R -- --ugly %Ls -- %Ls',
$bin,
$flags,
$paths);
}
public static function newBuiltinMap() {
$future = self::newExtractSymbolsFuture(
array('--builtins'),
array());
list($json) = $future->resolvex();
return phutil_json_decode($json);
}

50
support/lib/extract-symbols.php
View file

@ -23,8 +23,8 @@ $args->setSynopsis(<<<EOHELP
Symbols are reported in JSON on stdout.
This script is used internally by libphutil/arcanist to build maps of
library symbols.
This script is used internally by Arcanist to build maps of library
symbols.
It would be nice to eventually implement this as a C++ xhpast binary,
as it's relatively stable and performance is currently awful
@ -38,7 +38,11 @@ $args->parse(
array(
'name' => 'all',
'help' => pht(
'Report all symbols, including built-ins and declared externals.'),
'Emit all symbols, including built-ins and declared externals.'),
),
array(
'name' => 'builtins',
'help' => pht('Emit builtin symbols.'),
),
array(
'name' => 'ugly',
@ -52,14 +56,32 @@ $args->parse(
));
$paths = $args->getArg('path');
$show_all = $args->getArg('all');
$show_builtins = $args->getArg('builtins');
if ($show_all && $show_builtins) {
throw new PhutilArgumentUsageException(
pht(
'Flags "--all" and "--builtins" are not compatible.'));
}
if ($show_builtins && $paths) {
throw new PhutilArgumentUsageException(
pht(
'Flag "--builtins" may not be used with a path.'));
}
if ($show_builtins) {
$path = '<builtins>';
$source_code = '';
} else {
if (count($paths) !== 1) {
throw new Exception(pht('Specify exactly one path!'));
}
$path = Filesystem::resolvePath(head($paths));
$show_all = $args->getArg('all');
$source_code = Filesystem::readFile($path);
}
try {
$tree = XHPASTTree::newFromData($source_code);
@ -474,6 +496,14 @@ foreach ($need as $key => $spec) {
$required_symbols[$type][$name] = $spec['symbol']->getOffset();
}
if ($show_builtins) {
foreach ($builtins as $type => $builtin_symbols) {
foreach ($builtin_symbols as $builtin_symbol => $ignored) {
$declared_symbols[$type][$builtin_symbol] = null;
}
}
}
$result = array(
'have' => $declared_symbols,
'need' => $required_symbols,
@ -543,8 +573,6 @@ function phutil_symbols_get_builtins() {
'parent' => true,
'self' => true,
'PhutilBootloader' => true,
// PHP7 defines these new parent classes of "Exception", but they do not
// exist prior to PHP7. It's possible to use them safely in PHP5, in
// some cases, to write code which is compatible with either PHP5 or
@ -570,12 +598,6 @@ function phutil_symbols_get_builtins() {
'isset' => true,
'die' => true,
// These are provided by libphutil but not visible in the map.
'phutil_is_windows' => true,
'phutil_load_library' => true,
'phutil_is_hiphop_runtime' => true,
// HPHP/i defines these functions as 'internal', but they are NOT
// builtins and do not exist in vanilla PHP. Make sure we don't mark
// them as builtin since we need to add dependencies for them.