/**
* Return whether this type is a placeholder. Given a type name "T" or
* "T[]", this method will return true if "T" is contained in this
* types' components, e.g. as in "List<T>".
*
* @param xp.compiler.types.TypeName ref
* @return bool
*/
public function isPlaceholder(self $ref)
{
if ($ref->isArray()) {
$cmp = $ref->arrayComponentType();
} else {
$cmp = $ref;
}
foreach ($this->components as $component) {
if ($component->name === $cmp->name) {
return true;
}
}
return false;
}
public function kAndVArePlaceHoldersInMapOfKV()
{
$decl = new TypeName('Map', [new TypeName('K'), new TypeName('V')]);
$this->assertTrue($decl->isPlaceholder(new TypeName('K')), 'K');
$this->assertTrue($decl->isPlaceholder(new TypeName('V')), 'V');
}
/**
* Resolve a type name
*
* @param xp.compiler.types.TypeName name
* @param bool register
* @return xp.compiler.types.Types resolved
* @throws xp.compiler.types.ResolveException
*/
public function resolveType(TypeName $name, $register = true)
{
if ($name->isArray()) {
return new ArrayTypeOf($this->resolveType($name->arrayComponentType(), $register));
} else {
if ($name->isMap()) {
return new MapTypeOf($this->resolveType($name->mapComponentType(), $register));
} else {
if (!$name->isClass()) {
return new PrimitiveTypeOf($name);
} else {
if ($name->isGeneric()) {
return new GenericType($this->resolveType(new TypeName($name->name), $register), $name->components);
} else {
if ($name->isFunction()) {
return new FunctionTypeOf($this->resolveType($name->functionReturnType(), $register), $name->components);
}
}
}
}
}
if ($this->declarations) {
$decl = $this->declarations[0];
// Keywords: self, parent
if ('self' === $name->name || $name->name === $decl->name->name) {
return $this->resolved['self'];
} else {
if ('parent' === $name->name) {
return $this->resolved['parent'];
}
}
// See if this type is part of our generic type, return a place holder
foreach ($decl->name->components as $component) {
if ($component->equals($name)) {
return new TypeReference($name, Types::UNKNOWN_KIND);
}
}
// Fall through
}
$normalized = strtr($name->name, '\\', '.');
if ('xp' === $normalized) {
return new TypeReference($name, Types::UNKNOWN_KIND);
} else {
if (0 === strncmp('php.', $normalized, 4)) {
return new TypeReflection(new XPClass(substr($normalized, strrpos($normalized, '.') + 1)));
} else {
if (strpos($normalized, '.')) {
$qualified = $normalized;
} else {
if (isset($this->imports[$normalized])) {
$qualified = $this->imports[$normalized];
} else {
$lookup = $this->package ? array_merge($this->packages, [$this->package->name]) : array_merge($this->packages, [null]);
try {
$qualified = $this->task->locateClass($lookup, $normalized);
} catch (\lang\ElementNotFoundException $e) {
throw new ResolveException('Cannot resolve ' . $name->toString(), 423, $e);
}
}
}
}
}
// Locate class. If the classloader already knows this class,
// we can simply use this class. TODO: Use specialized
// JitClassLoader?
if (!$this->resolved->containsKey($qualified)) {
if (class_exists(literal($qualified), false) || interface_exists(literal($qualified), false) || ClassLoader::getDefault()->providesClass($qualified)) {
try {
$this->resolved[$qualified] = new TypeReflection(XPClass::forName($qualified));
} catch (\lang\Throwable $e) {
throw new ResolveException('Class loader error for ' . $name->toString() . ': ' . $e->getMessage(), 507, $e);
}
} else {
try {
$type = $this->task->newSubTask($qualified)->run($this);
} catch (\xp\compiler\CompilationException $e) {
throw new ResolveException('Cannot resolve ' . $name->toString(), 424, $e);
} catch (\lang\Throwable $e) {
throw new ResolveException('Cannot resolve ' . $name->toString(), 507, $e);
}
$this->resolved[$qualified] = $type;
}
}
$register && ($this->used[$qualified] = true);
return $this->resolved[$qualified];
}
