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NameScope.php
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NameScope.php
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<?php declare(strict_types = 1);
namespace PHPStan\Analyser;
use PHPStan\Type\Generic\TemplateTypeMap;
use PHPStan\Type\Generic\TemplateTypeScope;
use PHPStan\Type\Type;
use function array_key_exists;
use function array_merge;
use function array_shift;
use function count;
use function explode;
use function implode;
use function ltrim;
use function sprintf;
use function str_starts_with;
use function strtolower;
/**
* @api
* @final
*/
class NameScope
{
private TemplateTypeMap $templateTypeMap;
/**
* @api
* @param non-empty-string|null $namespace
* @param array<string, string> $uses alias(string) => fullName(string)
* @param array<string, string> $constUses alias(string) => fullName(string)
* @param array<string, true> $typeAliasesMap
*/
public function __construct(private ?string $namespace, private array $uses, private ?string $className = null, private ?string $functionName = null, ?TemplateTypeMap $templateTypeMap = null, private array $typeAliasesMap = [], private bool $bypassTypeAliases = false, private array $constUses = [], private ?string $typeAliasClassName = null)
{
$this->templateTypeMap = $templateTypeMap ?? TemplateTypeMap::createEmpty();
}
public function getNamespace(): ?string
{
return $this->namespace;
}
/**
* @return array<string, string>
*/
public function getUses(): array
{
return $this->uses;
}
public function hasUseAlias(string $name): bool
{
return isset($this->uses[strtolower($name)]);
}
/**
* @return array<string, string>
*/
public function getConstUses(): array
{
return $this->constUses;
}
public function getClassName(): ?string
{
return $this->className;
}
public function getClassNameForTypeAlias(): ?string
{
return $this->typeAliasClassName ?? $this->className;
}
public function resolveStringName(string $name): string
{
if (str_starts_with($name, '\\')) {
return ltrim($name, '\\');
}
$nameParts = explode('\\', $name);
$firstNamePart = strtolower($nameParts[0]);
if (isset($this->uses[$firstNamePart])) {
if (count($nameParts) === 1) {
return $this->uses[$firstNamePart];
}
array_shift($nameParts);
return sprintf('%s\\%s', $this->uses[$firstNamePart], implode('\\', $nameParts));
}
if ($this->namespace !== null) {
return sprintf('%s\\%s', $this->namespace, $name);
}
return $name;
}
/**
* @return non-empty-list<string>
*/
public function resolveConstantNames(string $name): array
{
if (str_starts_with($name, '\\')) {
return [ltrim($name, '\\')];
}
$nameParts = explode('\\', $name);
$firstNamePart = strtolower($nameParts[0]);
if (count($nameParts) > 1) {
if (isset($this->uses[$firstNamePart])) {
array_shift($nameParts);
return [sprintf('%s\\%s', $this->uses[$firstNamePart], implode('\\', $nameParts))];
}
} elseif (isset($this->constUses[$firstNamePart])) {
return [$this->constUses[$firstNamePart]];
}
if ($this->namespace !== null) {
return [
sprintf('%s\\%s', $this->namespace, $name),
$name,
];
}
return [$name];
}
public function getTemplateTypeScope(): ?TemplateTypeScope
{
if ($this->className !== null) {
if ($this->functionName !== null) {
return TemplateTypeScope::createWithMethod($this->className, $this->functionName);
}
return TemplateTypeScope::createWithClass($this->className);
}
if ($this->functionName !== null) {
return TemplateTypeScope::createWithFunction($this->functionName);
}
return null;
}
public function getTemplateTypeMap(): TemplateTypeMap
{
return $this->templateTypeMap;
}
public function resolveTemplateTypeName(string $name): ?Type
{
return $this->templateTypeMap->getType($name);
}
public function withTemplateTypeMap(TemplateTypeMap $map): self
{
if ($map->isEmpty() && $this->templateTypeMap->isEmpty()) {
return $this;
}
return new self(
$this->namespace,
$this->uses,
$this->className,
$this->functionName,
new TemplateTypeMap(array_merge(
$this->templateTypeMap->getTypes(),
$map->getTypes(),
)),
$this->typeAliasesMap,
$this->bypassTypeAliases,
$this->constUses,
);
}
public function withClassName(string $className): self
{
return new self(
$this->namespace,
$this->uses,
$className,
$this->functionName,
$this->templateTypeMap,
$this->typeAliasesMap,
$this->bypassTypeAliases,
$this->constUses,
);
}
public function unsetTemplateType(string $name): self
{
$map = $this->templateTypeMap;
if (!$map->hasType($name)) {
return $this;
}
return new self(
$this->namespace,
$this->uses,
$this->className,
$this->functionName,
$this->templateTypeMap->unsetType($name),
$this->typeAliasesMap,
$this->bypassTypeAliases,
$this->constUses,
);
}
public function bypassTypeAliases(): self
{
return new self($this->namespace, $this->uses, $this->className, $this->functionName, $this->templateTypeMap, $this->typeAliasesMap, true, $this->constUses);
}
public function shouldBypassTypeAliases(): bool
{
return $this->bypassTypeAliases;
}
public function hasTypeAlias(string $alias): bool
{
return array_key_exists($alias, $this->typeAliasesMap);
}
/**
* @param mixed[] $properties
*/
public static function __set_state(array $properties): self
{
return new self(
$properties['namespace'],
$properties['uses'],
$properties['className'],
$properties['functionName'],
$properties['templateTypeMap'],
$properties['typeAliasesMap'],
$properties['bypassTypeAliases'],
$properties['constUses'],
);
}
}