diff options
author | Andrew Dolgov <[email protected]> | 2022-03-22 12:24:31 +0300 |
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committer | Andrew Dolgov <[email protected]> | 2022-03-22 12:24:31 +0300 |
commit | 1c4f7ab3b838b23afb2ee4dab14acbf75956e952 (patch) | |
tree | 0a19274107d717efe92d2c0376cd3105fead5a11 /vendor/nikic/php-parser/lib/PhpParser/Internal | |
parent | 711662948768492e8d05b778a7d80eacaec368d2 (diff) |
* add phpunit as a dev dependency
* add some basic tests for UrlHelper::rewrite_relative()
* fix UrlHelper::rewrite_relative() to work better on non-absolute
relative URL paths
Diffstat (limited to 'vendor/nikic/php-parser/lib/PhpParser/Internal')
4 files changed, 533 insertions, 0 deletions
diff --git a/vendor/nikic/php-parser/lib/PhpParser/Internal/DiffElem.php b/vendor/nikic/php-parser/lib/PhpParser/Internal/DiffElem.php new file mode 100644 index 000000000..a38b57ba9 --- /dev/null +++ b/vendor/nikic/php-parser/lib/PhpParser/Internal/DiffElem.php @@ -0,0 +1,27 @@ +<?php declare(strict_types=1); + +namespace PhpParser\Internal; + +/** + * @internal + */ +class DiffElem +{ + const TYPE_KEEP = 0; + const TYPE_REMOVE = 1; + const TYPE_ADD = 2; + const TYPE_REPLACE = 3; + + /** @var int One of the TYPE_* constants */ + public $type; + /** @var mixed Is null for add operations */ + public $old; + /** @var mixed Is null for remove operations */ + public $new; + + public function __construct(int $type, $old, $new) { + $this->type = $type; + $this->old = $old; + $this->new = $new; + } +} diff --git a/vendor/nikic/php-parser/lib/PhpParser/Internal/Differ.php b/vendor/nikic/php-parser/lib/PhpParser/Internal/Differ.php new file mode 100644 index 000000000..7f218c74f --- /dev/null +++ b/vendor/nikic/php-parser/lib/PhpParser/Internal/Differ.php @@ -0,0 +1,164 @@ +<?php declare(strict_types=1); + +namespace PhpParser\Internal; + +/** + * Implements the Myers diff algorithm. + * + * Myers, Eugene W. "An O (ND) difference algorithm and its variations." + * Algorithmica 1.1 (1986): 251-266. + * + * @internal + */ +class Differ +{ + private $isEqual; + + /** + * Create differ over the given equality relation. + * + * @param callable $isEqual Equality relation with signature function($a, $b) : bool + */ + public function __construct(callable $isEqual) { + $this->isEqual = $isEqual; + } + + /** + * Calculate diff (edit script) from $old to $new. + * + * @param array $old Original array + * @param array $new New array + * + * @return DiffElem[] Diff (edit script) + */ + public function diff(array $old, array $new) { + list($trace, $x, $y) = $this->calculateTrace($old, $new); + return $this->extractDiff($trace, $x, $y, $old, $new); + } + + /** + * Calculate diff, including "replace" operations. + * + * If a sequence of remove operations is followed by the same number of add operations, these + * will be coalesced into replace operations. + * + * @param array $old Original array + * @param array $new New array + * + * @return DiffElem[] Diff (edit script), including replace operations + */ + public function diffWithReplacements(array $old, array $new) { + return $this->coalesceReplacements($this->diff($old, $new)); + } + + private function calculateTrace(array $a, array $b) { + $n = \count($a); + $m = \count($b); + $max = $n + $m; + $v = [1 => 0]; + $trace = []; + for ($d = 0; $d <= $max; $d++) { + $trace[] = $v; + for ($k = -$d; $k <= $d; $k += 2) { + if ($k === -$d || ($k !== $d && $v[$k-1] < $v[$k+1])) { + $x = $v[$k+1]; + } else { + $x = $v[$k-1] + 1; + } + + $y = $x - $k; + while ($x < $n && $y < $m && ($this->isEqual)($a[$x], $b[$y])) { + $x++; + $y++; + } + + $v[$k] = $x; + if ($x >= $n && $y >= $m) { + return [$trace, $x, $y]; + } + } + } + throw new \Exception('Should not happen'); + } + + private function extractDiff(array $trace, int $x, int $y, array $a, array $b) { + $result = []; + for ($d = \count($trace) - 1; $d >= 0; $d--) { + $v = $trace[$d]; + $k = $x - $y; + + if ($k === -$d || ($k !== $d && $v[$k-1] < $v[$k+1])) { + $prevK = $k + 1; + } else { + $prevK = $k - 1; + } + + $prevX = $v[$prevK]; + $prevY = $prevX - $prevK; + + while ($x > $prevX && $y > $prevY) { + $result[] = new DiffElem(DiffElem::TYPE_KEEP, $a[$x-1], $b[$y-1]); + $x--; + $y--; + } + + if ($d === 0) { + break; + } + + while ($x > $prevX) { + $result[] = new DiffElem(DiffElem::TYPE_REMOVE, $a[$x-1], null); + $x--; + } + + while ($y > $prevY) { + $result[] = new DiffElem(DiffElem::TYPE_ADD, null, $b[$y-1]); + $y--; + } + } + return array_reverse($result); + } + + /** + * Coalesce equal-length sequences of remove+add into a replace operation. + * + * @param DiffElem[] $diff + * @return DiffElem[] + */ + private function coalesceReplacements(array $diff) { + $newDiff = []; + $c = \count($diff); + for ($i = 0; $i < $c; $i++) { + $diffType = $diff[$i]->type; + if ($diffType !== DiffElem::TYPE_REMOVE) { + $newDiff[] = $diff[$i]; + continue; + } + + $j = $i; + while ($j < $c && $diff[$j]->type === DiffElem::TYPE_REMOVE) { + $j++; + } + + $k = $j; + while ($k < $c && $diff[$k]->type === DiffElem::TYPE_ADD) { + $k++; + } + + if ($j - $i === $k - $j) { + $len = $j - $i; + for ($n = 0; $n < $len; $n++) { + $newDiff[] = new DiffElem( + DiffElem::TYPE_REPLACE, $diff[$i + $n]->old, $diff[$j + $n]->new + ); + } + } else { + for (; $i < $k; $i++) { + $newDiff[] = $diff[$i]; + } + } + $i = $k - 1; + } + return $newDiff; + } +} diff --git a/vendor/nikic/php-parser/lib/PhpParser/Internal/PrintableNewAnonClassNode.php b/vendor/nikic/php-parser/lib/PhpParser/Internal/PrintableNewAnonClassNode.php new file mode 100644 index 000000000..3eeac04a4 --- /dev/null +++ b/vendor/nikic/php-parser/lib/PhpParser/Internal/PrintableNewAnonClassNode.php @@ -0,0 +1,61 @@ +<?php declare(strict_types=1); + +namespace PhpParser\Internal; + +use PhpParser\Node; +use PhpParser\Node\Expr; + +/** + * This node is used internally by the format-preserving pretty printer to print anonymous classes. + * + * The normal anonymous class structure violates assumptions about the order of token offsets. + * Namely, the constructor arguments are part of the Expr\New_ node and follow the class node, even + * though they are actually interleaved with them. This special node type is used temporarily to + * restore a sane token offset order. + * + * @internal + */ +class PrintableNewAnonClassNode extends Expr +{ + /** @var Node\AttributeGroup[] PHP attribute groups */ + public $attrGroups; + /** @var Node\Arg[] Arguments */ + public $args; + /** @var null|Node\Name Name of extended class */ + public $extends; + /** @var Node\Name[] Names of implemented interfaces */ + public $implements; + /** @var Node\Stmt[] Statements */ + public $stmts; + + public function __construct( + array $attrGroups, array $args, Node\Name $extends = null, array $implements, + array $stmts, array $attributes + ) { + parent::__construct($attributes); + $this->attrGroups = $attrGroups; + $this->args = $args; + $this->extends = $extends; + $this->implements = $implements; + $this->stmts = $stmts; + } + + public static function fromNewNode(Expr\New_ $newNode) { + $class = $newNode->class; + assert($class instanceof Node\Stmt\Class_); + // We don't assert that $class->name is null here, to allow consumers to assign unique names + // to anonymous classes for their own purposes. We simplify ignore the name here. + return new self( + $class->attrGroups, $newNode->args, $class->extends, $class->implements, + $class->stmts, $newNode->getAttributes() + ); + } + + public function getType() : string { + return 'Expr_PrintableNewAnonClass'; + } + + public function getSubNodeNames() : array { + return ['attrGroups', 'args', 'extends', 'implements', 'stmts']; + } +} diff --git a/vendor/nikic/php-parser/lib/PhpParser/Internal/TokenStream.php b/vendor/nikic/php-parser/lib/PhpParser/Internal/TokenStream.php new file mode 100644 index 000000000..84c0175ec --- /dev/null +++ b/vendor/nikic/php-parser/lib/PhpParser/Internal/TokenStream.php @@ -0,0 +1,281 @@ +<?php declare(strict_types=1); + +namespace PhpParser\Internal; + +/** + * Provides operations on token streams, for use by pretty printer. + * + * @internal + */ +class TokenStream +{ + /** @var array Tokens (in token_get_all format) */ + private $tokens; + /** @var int[] Map from position to indentation */ + private $indentMap; + + /** + * Create token stream instance. + * + * @param array $tokens Tokens in token_get_all() format + */ + public function __construct(array $tokens) { + $this->tokens = $tokens; + $this->indentMap = $this->calcIndentMap(); + } + + /** + * Whether the given position is immediately surrounded by parenthesis. + * + * @param int $startPos Start position + * @param int $endPos End position + * + * @return bool + */ + public function haveParens(int $startPos, int $endPos) : bool { + return $this->haveTokenImmediatelyBefore($startPos, '(') + && $this->haveTokenImmediatelyAfter($endPos, ')'); + } + + /** + * Whether the given position is immediately surrounded by braces. + * + * @param int $startPos Start position + * @param int $endPos End position + * + * @return bool + */ + public function haveBraces(int $startPos, int $endPos) : bool { + return ($this->haveTokenImmediatelyBefore($startPos, '{') + || $this->haveTokenImmediatelyBefore($startPos, T_CURLY_OPEN)) + && $this->haveTokenImmediatelyAfter($endPos, '}'); + } + + /** + * Check whether the position is directly preceded by a certain token type. + * + * During this check whitespace and comments are skipped. + * + * @param int $pos Position before which the token should occur + * @param int|string $expectedTokenType Token to check for + * + * @return bool Whether the expected token was found + */ + public function haveTokenImmediatelyBefore(int $pos, $expectedTokenType) : bool { + $tokens = $this->tokens; + $pos--; + for (; $pos >= 0; $pos--) { + $tokenType = $tokens[$pos][0]; + if ($tokenType === $expectedTokenType) { + return true; + } + if ($tokenType !== \T_WHITESPACE + && $tokenType !== \T_COMMENT && $tokenType !== \T_DOC_COMMENT) { + break; + } + } + return false; + } + + /** + * Check whether the position is directly followed by a certain token type. + * + * During this check whitespace and comments are skipped. + * + * @param int $pos Position after which the token should occur + * @param int|string $expectedTokenType Token to check for + * + * @return bool Whether the expected token was found + */ + public function haveTokenImmediatelyAfter(int $pos, $expectedTokenType) : bool { + $tokens = $this->tokens; + $pos++; + for (; $pos < \count($tokens); $pos++) { + $tokenType = $tokens[$pos][0]; + if ($tokenType === $expectedTokenType) { + return true; + } + if ($tokenType !== \T_WHITESPACE + && $tokenType !== \T_COMMENT && $tokenType !== \T_DOC_COMMENT) { + break; + } + } + return false; + } + + public function skipLeft(int $pos, $skipTokenType) { + $tokens = $this->tokens; + + $pos = $this->skipLeftWhitespace($pos); + if ($skipTokenType === \T_WHITESPACE) { + return $pos; + } + + if ($tokens[$pos][0] !== $skipTokenType) { + // Shouldn't happen. The skip token MUST be there + throw new \Exception('Encountered unexpected token'); + } + $pos--; + + return $this->skipLeftWhitespace($pos); + } + + public function skipRight(int $pos, $skipTokenType) { + $tokens = $this->tokens; + + $pos = $this->skipRightWhitespace($pos); + if ($skipTokenType === \T_WHITESPACE) { + return $pos; + } + + if ($tokens[$pos][0] !== $skipTokenType) { + // Shouldn't happen. The skip token MUST be there + throw new \Exception('Encountered unexpected token'); + } + $pos++; + + return $this->skipRightWhitespace($pos); + } + + /** + * Return first non-whitespace token position smaller or equal to passed position. + * + * @param int $pos Token position + * @return int Non-whitespace token position + */ + public function skipLeftWhitespace(int $pos) { + $tokens = $this->tokens; + for (; $pos >= 0; $pos--) { + $type = $tokens[$pos][0]; + if ($type !== \T_WHITESPACE && $type !== \T_COMMENT && $type !== \T_DOC_COMMENT) { + break; + } + } + return $pos; + } + + /** + * Return first non-whitespace position greater or equal to passed position. + * + * @param int $pos Token position + * @return int Non-whitespace token position + */ + public function skipRightWhitespace(int $pos) { + $tokens = $this->tokens; + for ($count = \count($tokens); $pos < $count; $pos++) { + $type = $tokens[$pos][0]; + if ($type !== \T_WHITESPACE && $type !== \T_COMMENT && $type !== \T_DOC_COMMENT) { + break; + } + } + return $pos; + } + + public function findRight(int $pos, $findTokenType) { + $tokens = $this->tokens; + for ($count = \count($tokens); $pos < $count; $pos++) { + $type = $tokens[$pos][0]; + if ($type === $findTokenType) { + return $pos; + } + } + return -1; + } + + /** + * Whether the given position range contains a certain token type. + * + * @param int $startPos Starting position (inclusive) + * @param int $endPos Ending position (exclusive) + * @param int|string $tokenType Token type to look for + * @return bool Whether the token occurs in the given range + */ + public function haveTokenInRange(int $startPos, int $endPos, $tokenType) { + $tokens = $this->tokens; + for ($pos = $startPos; $pos < $endPos; $pos++) { + if ($tokens[$pos][0] === $tokenType) { + return true; + } + } + return false; + } + + public function haveBracesInRange(int $startPos, int $endPos) { + return $this->haveTokenInRange($startPos, $endPos, '{') + || $this->haveTokenInRange($startPos, $endPos, T_CURLY_OPEN) + || $this->haveTokenInRange($startPos, $endPos, '}'); + } + + /** + * Get indentation before token position. + * + * @param int $pos Token position + * + * @return int Indentation depth (in spaces) + */ + public function getIndentationBefore(int $pos) : int { + return $this->indentMap[$pos]; + } + + /** + * Get the code corresponding to a token offset range, optionally adjusted for indentation. + * + * @param int $from Token start position (inclusive) + * @param int $to Token end position (exclusive) + * @param int $indent By how much the code should be indented (can be negative as well) + * + * @return string Code corresponding to token range, adjusted for indentation + */ + public function getTokenCode(int $from, int $to, int $indent) : string { + $tokens = $this->tokens; + $result = ''; + for ($pos = $from; $pos < $to; $pos++) { + $token = $tokens[$pos]; + if (\is_array($token)) { + $type = $token[0]; + $content = $token[1]; + if ($type === \T_CONSTANT_ENCAPSED_STRING || $type === \T_ENCAPSED_AND_WHITESPACE) { + $result .= $content; + } else { + // TODO Handle non-space indentation + if ($indent < 0) { + $result .= str_replace("\n" . str_repeat(" ", -$indent), "\n", $content); + } elseif ($indent > 0) { + $result .= str_replace("\n", "\n" . str_repeat(" ", $indent), $content); + } else { + $result .= $content; + } + } + } else { + $result .= $token; + } + } + return $result; + } + + /** + * Precalculate the indentation at every token position. + * + * @return int[] Token position to indentation map + */ + private function calcIndentMap() { + $indentMap = []; + $indent = 0; + foreach ($this->tokens as $token) { + $indentMap[] = $indent; + + if ($token[0] === \T_WHITESPACE) { + $content = $token[1]; + $newlinePos = \strrpos($content, "\n"); + if (false !== $newlinePos) { + $indent = \strlen($content) - $newlinePos - 1; + } + } + } + + // Add a sentinel for one past end of the file + $indentMap[] = $indent; + + return $indentMap; + } +} |