public function testFullyQualifiedFunctionName()
{
$this->assertFQSENEqual(FullyQualifiedFunctionName::make('\\Name\\Space', 'g'), '\\Name\\Space\\g');
$this->assertFQSENEqual(FullyQualifiedFunctionName::make('', 'g'), '\\g');
$this->assertFQSENEqual(FullyQualifiedGlobalConstantName::make('', 'g'), '\\g');
$this->assertFQSENEqual(FullyQualifiedFunctionName::fromFullyQualifiedString('\\g'), '\\g');
$this->assertFQSENEqual(FullyQualifiedFunctionName::fromStringInContext('g', $this->context), '\\g');
}
/**
* @return array
* A map from alias to target
*/
private function aliasTargetMapFromUseNode(Node $node, string $prefix = '') : array
{
assert($node->kind == \ast\AST_USE, 'Method takes AST_USE nodes');
$map = [];
foreach ($node->children ?? [] as $child_node) {
$target = $child_node->children['name'];
if (empty($child_node->children['alias'])) {
if (($pos = strrpos($target, '\\')) !== false) {
$alias = substr($target, $pos + 1);
} else {
$alias = $target;
}
} else {
$alias = $child_node->children['alias'];
}
// if AST_USE does not have any flags set, then its AST_USE_ELEM
// children will (this will be for AST_GROUP_USE)
if ($node->flags !== 0) {
$target_node = $node;
} else {
$target_node = $child_node;
}
if ($target_node->flags == T_FUNCTION) {
$parts = explode('\\', $target);
$function_name = array_pop($parts);
$target = FullyQualifiedFunctionName::make($prefix . '\\' . implode('\\', $parts), $function_name);
} else {
if ($target_node->flags == T_CONST) {
$parts = explode('\\', $target);
$name = array_pop($parts);
$target = FullyQualifiedGlobalConstantName::make($prefix . '\\' . implode('\\', $parts), $name);
} else {
$target = FullyQualifiedClassName::fromFullyQualifiedString($prefix . '\\' . $target);
}
}
$map[$alias] = [$target_node->flags, $target];
}
return $map;
}