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ArcanistLintMessage.php
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ArcanistLintMessage.php
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<?php
/**
* Message emitted by a linter, like an error or warning.
*/
final class ArcanistLintMessage extends Phobject {
protected $path;
protected $line;
protected $char;
protected $code;
protected $severity;
protected $name;
protected $description;
protected $originalText;
protected $replacementText;
protected $appliedToDisk;
protected $dependentMessages = array();
protected $otherLocations = array();
protected $obsolete;
protected $granularity;
protected $bypassChangedLineFiltering;
public static function newFromDictionary(array $dict) {
$message = new ArcanistLintMessage();
$message->setPath($dict['path']);
if (isset($dict['line'])) {
$message->setLine($dict['line']);
}
if (isset($dict['char'])) {
$message->setChar($dict['char']);
}
$message->setCode($dict['code']);
$message->setSeverity($dict['severity']);
$message->setName($dict['name']);
$message->setDescription($dict['description']);
if (isset($dict['original'])) {
$message->setOriginalText($dict['original']);
}
if (isset($dict['replacement'])) {
$message->setReplacementText($dict['replacement']);
}
$message->setGranularity(idx($dict, 'granularity'));
$message->setOtherLocations(idx($dict, 'locations', array()));
if (isset($dict['bypassChangedLineFiltering'])) {
$message->setBypassChangedLineFiltering(
$dict['bypassChangedLineFiltering']);
}
return $message;
}
public function toDictionary() {
return array(
'path' => $this->getPath(),
'line' => $this->getLine(),
'char' => $this->getChar(),
'code' => $this->getCode(),
'severity' => $this->getSeverity(),
'name' => $this->getName(),
'description' => $this->getDescription(),
'original' => $this->getOriginalText(),
'replacement' => $this->getReplacementText(),
'granularity' => $this->getGranularity(),
'locations' => $this->getOtherLocations(),
'bypassChangedLineFiltering' => $this->shouldBypassChangedLineFiltering(),
);
}
public function setPath($path) {
$this->path = $path;
return $this;
}
public function getPath() {
return $this->path;
}
public function setLine($line) {
$this->line = $this->validateInteger($line, 'setLine');
return $this;
}
public function getLine() {
return $this->line;
}
public function setChar($char) {
$this->char = $this->validateInteger($char, 'setChar');
return $this;
}
public function getChar() {
return $this->char;
}
public function setCode($code) {
$code = (string)$code;
$maximum_bytes = 128;
$actual_bytes = strlen($code);
if ($actual_bytes > $maximum_bytes) {
throw new Exception(
pht(
'Parameter ("%s") passed to "%s" when constructing a lint message '.
'must be a scalar with a maximum string length of %s bytes, but is '.
'%s bytes in length.',
$code,
'setCode()',
new PhutilNumber($maximum_bytes),
new PhutilNumber($actual_bytes)));
}
$this->code = $code;
return $this;
}
public function getCode() {
return $this->code;
}
public function setSeverity($severity) {
$this->severity = $severity;
return $this;
}
public function getSeverity() {
return $this->severity;
}
public function setName($name) {
$maximum_bytes = 255;
$actual_bytes = strlen($name);
if ($actual_bytes > $maximum_bytes) {
throw new Exception(
pht(
'Parameter ("%s") passed to "%s" when constructing a lint message '.
'must be a string with a maximum length of %s bytes, but is %s '.
'bytes in length.',
$name,
'setName()',
new PhutilNumber($maximum_bytes),
new PhutilNumber($actual_bytes)));
}
$this->name = $name;
return $this;
}
public function getName() {
return $this->name;
}
public function setDescription($description) {
$this->description = $description;
return $this;
}
public function getDescription() {
return $this->description;
}
public function setOriginalText($original) {
$this->originalText = $original;
return $this;
}
public function getOriginalText() {
return $this->originalText;
}
public function setReplacementText($replacement) {
$this->replacementText = $replacement;
return $this;
}
public function getReplacementText() {
return $this->replacementText;
}
/**
* @param dict Keys 'path', 'line', 'char', 'original'.
*/
public function setOtherLocations(array $locations) {
assert_instances_of($locations, 'array');
$this->otherLocations = $locations;
return $this;
}
public function getOtherLocations() {
return $this->otherLocations;
}
public function isError() {
return $this->getSeverity() == ArcanistLintSeverity::SEVERITY_ERROR;
}
public function isWarning() {
return $this->getSeverity() == ArcanistLintSeverity::SEVERITY_WARNING;
}
public function isAutofix() {
return $this->getSeverity() == ArcanistLintSeverity::SEVERITY_AUTOFIX;
}
public function hasFileContext() {
return ($this->getLine() !== null);
}
public function setObsolete($obsolete) {
$this->obsolete = $obsolete;
return $this;
}
public function getObsolete() {
return $this->obsolete;
}
public function isPatchable() {
return ($this->getReplacementText() !== null) &&
($this->getReplacementText() !== $this->getOriginalText());
}
public function didApplyPatch() {
if ($this->appliedToDisk) {
return $this;
}
$this->appliedToDisk = true;
foreach ($this->dependentMessages as $message) {
$message->didApplyPatch();
}
return $this;
}
public function isPatchApplied() {
return $this->appliedToDisk;
}
public function setGranularity($granularity) {
$this->granularity = $granularity;
return $this;
}
public function getGranularity() {
return $this->granularity;
}
public function setDependentMessages(array $messages) {
assert_instances_of($messages, __CLASS__);
$this->dependentMessages = $messages;
return $this;
}
public function setBypassChangedLineFiltering($bypass_changed_lines) {
$this->bypassChangedLineFiltering = $bypass_changed_lines;
return $this;
}
public function shouldBypassChangedLineFiltering() {
return $this->bypassChangedLineFiltering;
}
/**
* Validate an integer-like value, returning a strict integer.
*
* Further on, the pipeline is strict about types. We want to be a little
* less strict in linters themselves, since they often parse command line
* output or XML and will end up with string representations of numbers.
*
* @param mixed Integer or digit string.
* @return int Integer.
*/
private function validateInteger($value, $caller) {
if ($value === null) {
// This just means that we don't have any information.
return null;
}
// Strings like "234" are fine, coerce them to integers.
if (is_string($value) && preg_match('/^\d+\z/', $value)) {
$value = (int)$value;
}
if (!is_int($value)) {
throw new Exception(
pht(
'Parameter passed to "%s" must be an integer.',
$caller.'()'));
}
return $value;
}
public function newTrimmedMessage() {
if (!$this->isPatchable()) {
return clone $this;
}
// If the original and replacement text have a similar prefix or suffix,
// we trim it to reduce the size of the diff we show to the user.
$replacement = $this->getReplacementText();
$original = $this->getOriginalText();
$replacement_length = strlen($replacement);
$original_length = strlen($original);
$minimum_length = min($original_length, $replacement_length);
$prefix_length = 0;
for ($ii = 0; $ii < $minimum_length; $ii++) {
if ($original[$ii] !== $replacement[$ii]) {
break;
}
$prefix_length++;
}
// NOTE: The two strings can't be the same because the message won't be
// "patchable" if they are, so we don't need a special check for the case
// where the entire string is a shared prefix.
// However, if the two strings are in the form "ABC" and "ABBC", we may
// find a prefix and a suffix with a combined length greater than the
// total size of the smaller string if we don't limit the search.
$max_suffix = ($minimum_length - $prefix_length);
$suffix_length = 0;
for ($ii = 1; $ii <= $max_suffix; $ii++) {
$original_char = $original[$original_length - $ii];
$replacement_char = $replacement[$replacement_length - $ii];
if ($original_char !== $replacement_char) {
break;
}
$suffix_length++;
}
if ($suffix_length) {
$original = substr($original, 0, -$suffix_length);
$replacement = substr($replacement, 0, -$suffix_length);
}
$line = $this->getLine();
$char = $this->getChar();
if ($prefix_length) {
$prefix = substr($original, 0, $prefix_length);
// NOTE: Prior to PHP7, `substr("a", 1)` returned false instead of
// the empty string. Cast these to force the PHP7-ish behavior we
// expect.
$original = (string)substr($original, $prefix_length);
$replacement = (string)substr($replacement, $prefix_length);
// If we've removed a prefix, we need to push the character and line
// number for the warning forward to account for the characters we threw
// away.
for ($ii = 0; $ii < $prefix_length; $ii++) {
$char++;
if ($prefix[$ii] == "\n") {
$line++;
$char = 1;
}
}
}
return id(clone $this)
->setOriginalText($original)
->setReplacementText($replacement)
->setLine($line)
->setChar($char);
}
}

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Content licensed under Creative Commons Attribution-ShareAlike 4.0 (CC-BY-SA) unless otherwise noted; code licensed under Apache 2.0 or other open source licenses. · CC BY-SA 4.0 · Apache 2.0