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Directory >> /home/whitjouh/public_html/core/vendor/nikic/php-parser/lib/PhpParser/

File / Folder	Size	Action
.	-
Builder	--	ren
Comment	--	ren
ErrorHandler	--	ren
Internal	--	ren
Lexer	--	ren
Node	--	ren
NodeVisitor	--	ren
Parser	--	ren
PrettyPrinter	--	ren
Builder.php	0.197KB	edt ren
BuilderFactory.php	10.292KB	edt ren
BuilderHelpers.php	9.515KB	edt ren
Comment.php	6.669KB	edt ren
ConstExprEvaluationExce...	0.109KB	edt ren
ConstExprEvaluator.php	9.211KB	edt ren
Error.php	4.76KB	edt ren
ErrorHandler.php	0.293KB	edt ren
JsonDecoder.php	3.438KB	edt ren
Lexer.php	4.264KB	edt ren
Modifiers.php	2.15KB	edt ren
NameContext.php	9.821KB	edt ren
Node.php	3.874KB	edt ren
NodeAbstract.php	5.13KB	edt ren
NodeDumper.php	9.97KB	edt ren
NodeFinder.php	2.546KB	edt ren
NodeTraverser.php	10.45KB	edt ren
NodeTraverserInterface.php	0.584KB	edt ren
NodeVisitor.php	4.081KB	edt ren
NodeVisitorAbstract.php	0.437KB	edt ren
Parser.php	0.747KB	edt ren
ParserAbstract.php	48.704KB	edt ren
ParserFactory.php	1.414KB	edt ren
PhpVersion.php	4.466KB	edt ren
PrettyPrinter.php	1.659KB	edt ren
PrettyPrinterAbstract.php	68.481KB	edt ren
Token.php	0.476KB	edt ren
compatibility_tokens.php	1.923KB	edt ren

<?php declare(strict_types=1);

namespace PhpParser;

use PhpParser\Node\Name;
use PhpParser\Node\Name\FullyQualified;
use PhpParser\Node\Stmt;

class NameContext {
    /** @var null|Name Current namespace */
    protected ?Name $namespace;

/** @var Name[][] Map of format [aliasType => [aliasName => originalName]] */
    protected array $aliases = [];

/** @var Name[][] Same as $aliases but preserving original case */
    protected array $origAliases = [];

/** @var ErrorHandler Error handler */
    protected ErrorHandler $errorHandler;

/**
     * Create a name context.
     *
     * @param ErrorHandler $errorHandler Error handling used to report errors
     */
    public function __construct(ErrorHandler $errorHandler) {
        $this->errorHandler = $errorHandler;
    }

/**
     * Start a new namespace.
     *
     * This also resets the alias table.
     *
     * @param Name|null $namespace Null is the global namespace
     */
    public function startNamespace(?Name $namespace = null): void {
        $this->namespace = $namespace;
        $this->origAliases = $this->aliases = [
            Stmt\Use_::TYPE_NORMAL   => [],
            Stmt\Use_::TYPE_FUNCTION => [],
            Stmt\Use_::TYPE_CONSTANT => [],
        ];
    }

/**
     * Add an alias / import.
     *
     * @param Name $name Original name
     * @param string $aliasName Aliased name
     * @param Stmt\Use_::TYPE_* $type One of Stmt\Use_::TYPE_*
     * @param array<string, mixed> $errorAttrs Attributes to use to report an error
     */
    public function addAlias(Name $name, string $aliasName, int $type, array $errorAttrs = []): void {
        // Constant names are case sensitive, everything else case insensitive
        if ($type === Stmt\Use_::TYPE_CONSTANT) {
            $aliasLookupName = $aliasName;
        } else {
            $aliasLookupName = strtolower($aliasName);
        }

if (isset($this->aliases[$type][$aliasLookupName])) {
            $typeStringMap = [
                Stmt\Use_::TYPE_NORMAL   => '',
                Stmt\Use_::TYPE_FUNCTION => 'function ',
                Stmt\Use_::TYPE_CONSTANT => 'const ',
            ];

$this->errorHandler->handleError(new Error(
                sprintf(
                    'Cannot use %s%s as %s because the name is already in use',
                    $typeStringMap[$type], $name, $aliasName
                ),
                $errorAttrs
            ));
            return;
        }

$this->aliases[$type][$aliasLookupName] = $name;
        $this->origAliases[$type][$aliasName] = $name;
    }

/**
     * Get current namespace.
     *
     * @return null|Name Namespace (or null if global namespace)
     */
    public function getNamespace(): ?Name {
        return $this->namespace;
    }

/**
     * Get resolved name.
     *
     * @param Name $name Name to resolve
     * @param Stmt\Use_::TYPE_* $type One of Stmt\Use_::TYPE_{FUNCTION|CONSTANT}
     *
     * @return null|Name Resolved name, or null if static resolution is not possible
     */
    public function getResolvedName(Name $name, int $type): ?Name {
        // don't resolve special class names
        if ($type === Stmt\Use_::TYPE_NORMAL && $name->isSpecialClassName()) {
            if (!$name->isUnqualified()) {
                $this->errorHandler->handleError(new Error(
                    sprintf("'\\%s' is an invalid class name", $name->toString()),
                    $name->getAttributes()
                ));
            }
            return $name;
        }

// fully qualified names are already resolved
        if ($name->isFullyQualified()) {
            return $name;
        }

// Try to resolve aliases
        if (null !== $resolvedName = $this->resolveAlias($name, $type)) {
            return $resolvedName;
        }

if ($type !== Stmt\Use_::TYPE_NORMAL && $name->isUnqualified()) {
            if (null === $this->namespace) {
                // outside of a namespace unaliased unqualified is same as fully qualified
                return new FullyQualified($name, $name->getAttributes());
            }

// Cannot resolve statically
            return null;
        }

// if no alias exists prepend current namespace
        return FullyQualified::concat($this->namespace, $name, $name->getAttributes());
    }

/**
     * Get resolved class name.
     *
     * @param Name $name Class ame to resolve
     *
     * @return Name Resolved name
     */
    public function getResolvedClassName(Name $name): Name {
        return $this->getResolvedName($name, Stmt\Use_::TYPE_NORMAL);
    }

/**
     * Get possible ways of writing a fully qualified name (e.g., by making use of aliases).
     *
     * @param string $name Fully-qualified name (without leading namespace separator)
     * @param Stmt\Use_::TYPE_* $type One of Stmt\Use_::TYPE_*
     *
     * @return Name[] Possible representations of the name
     */
    public function getPossibleNames(string $name, int $type): array {
        $lcName = strtolower($name);

if ($type === Stmt\Use_::TYPE_NORMAL) {
            // self, parent and static must always be unqualified
            if ($lcName === "self" || $lcName === "parent" || $lcName === "static") {
                return [new Name($name)];
            }
        }

// Collect possible ways to write this name, starting with the fully-qualified name
        $possibleNames = [new FullyQualified($name)];

if (null !== $nsRelativeName = $this->getNamespaceRelativeName($name, $lcName, $type)) {
            // Make sure there is no alias that makes the normally namespace-relative name
            // into something else
            if (null === $this->resolveAlias($nsRelativeName, $type)) {
                $possibleNames[] = $nsRelativeName;
            }
        }

// Check for relevant namespace use statements
        foreach ($this->origAliases[Stmt\Use_::TYPE_NORMAL] as $alias => $orig) {
            $lcOrig = $orig->toLowerString();
            if (0 === strpos($lcName, $lcOrig . '\\')) {
                $possibleNames[] = new Name($alias . substr($name, strlen($lcOrig)));
            }
        }

// Check for relevant type-specific use statements
        foreach ($this->origAliases[$type] as $alias => $orig) {
            if ($type === Stmt\Use_::TYPE_CONSTANT) {
                // Constants are are complicated-sensitive
                $normalizedOrig = $this->normalizeConstName($orig->toString());
                if ($normalizedOrig === $this->normalizeConstName($name)) {
                    $possibleNames[] = new Name($alias);
                }
            } else {
                // Everything else is case-insensitive
                if ($orig->toLowerString() === $lcName) {
                    $possibleNames[] = new Name($alias);
                }
            }
        }

return $possibleNames;
    }

/**
     * Get shortest representation of this fully-qualified name.
     *
     * @param string $name Fully-qualified name (without leading namespace separator)
     * @param Stmt\Use_::TYPE_* $type One of Stmt\Use_::TYPE_*
     *
     * @return Name Shortest representation
     */
    public function getShortName(string $name, int $type): Name {
        $possibleNames = $this->getPossibleNames($name, $type);

// Find shortest name
        $shortestName = null;
        $shortestLength = \INF;
        foreach ($possibleNames as $possibleName) {
            $length = strlen($possibleName->toCodeString());
            if ($length < $shortestLength) {
                $shortestName = $possibleName;
                $shortestLength = $length;
            }
        }

return $shortestName;
    }

private function resolveAlias(Name $name, int $type): ?FullyQualified {
        $firstPart = $name->getFirst();

if ($name->isQualified()) {
            // resolve aliases for qualified names, always against class alias table
            $checkName = strtolower($firstPart);
            if (isset($this->aliases[Stmt\Use_::TYPE_NORMAL][$checkName])) {
                $alias = $this->aliases[Stmt\Use_::TYPE_NORMAL][$checkName];
                return FullyQualified::concat($alias, $name->slice(1), $name->getAttributes());
            }
        } elseif ($name->isUnqualified()) {
            // constant aliases are case-sensitive, function aliases case-insensitive
            $checkName = $type === Stmt\Use_::TYPE_CONSTANT ? $firstPart : strtolower($firstPart);
            if (isset($this->aliases[$type][$checkName])) {
                // resolve unqualified aliases
                return new FullyQualified($this->aliases[$type][$checkName], $name->getAttributes());
            }
        }

// No applicable aliases
        return null;
    }

private function getNamespaceRelativeName(string $name, string $lcName, int $type): ?Name {
        if (null === $this->namespace) {
            return new Name($name);
        }

if ($type === Stmt\Use_::TYPE_CONSTANT) {
            // The constants true/false/null always resolve to the global symbols, even inside a
            // namespace, so they may be used without qualification
            if ($lcName === "true" || $lcName === "false" || $lcName === "null") {
                return new Name($name);
            }
        }

$namespacePrefix = strtolower($this->namespace . '\\');
        if (0 === strpos($lcName, $namespacePrefix)) {
            return new Name(substr($name, strlen($namespacePrefix)));
        }

return null;
    }

private function normalizeConstName(string $name): string {
        $nsSep = strrpos($name, '\\');
        if (false === $nsSep) {
            return $name;
        }

// Constants have case-insensitive namespace and case-sensitive short-name
        $ns = substr($name, 0, $nsSep);
        $shortName = substr($name, $nsSep + 1);
        return strtolower($ns) . '\\' . $shortName;
    }
}

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