drupal-civicrm/vendor/nikic/php-parser/lib/PhpParser/BuilderAbstract.php
2018-01-14 13:10:16 +00:00

176 lines
5.5 KiB
PHP

<?php
namespace PhpParser;
use PhpParser\Comment;
use PhpParser\Node\Expr;
use PhpParser\Node\Name;
use PhpParser\Node\NullableType;
use PhpParser\Node\Scalar;
use PhpParser\Node\Stmt;
abstract class BuilderAbstract implements Builder {
/**
* Normalizes a node: Converts builder objects to nodes.
*
* @param Node|Builder $node The node to normalize
*
* @return Node The normalized node
*/
protected function normalizeNode($node) {
if ($node instanceof Builder) {
return $node->getNode();
} elseif ($node instanceof Node) {
return $node;
}
throw new \LogicException('Expected node or builder object');
}
/**
* Normalizes a name: Converts plain string names to PhpParser\Node\Name.
*
* @param Name|string $name The name to normalize
*
* @return Name The normalized name
*/
protected function normalizeName($name) {
if ($name instanceof Name) {
return $name;
} elseif (is_string($name)) {
if (!$name) {
throw new \LogicException('Name cannot be empty');
}
if ($name[0] == '\\') {
return new Name\FullyQualified(substr($name, 1));
} elseif (0 === strpos($name, 'namespace\\')) {
return new Name\Relative(substr($name, strlen('namespace\\')));
} else {
return new Name($name);
}
}
throw new \LogicException('Name must be a string or an instance of PhpParser\Node\Name');
}
/**
* Normalizes a type: Converts plain-text type names into proper AST representation.
*
* In particular, builtin types are left as strings, custom types become Names and nullables
* are wrapped in NullableType nodes.
*
* @param Name|string|NullableType $type The type to normalize
*
* @return Name|string|NullableType The normalized type
*/
protected function normalizeType($type) {
if (!is_string($type)) {
if (!$type instanceof Name && !$type instanceof NullableType) {
throw new \LogicException(
'Type must be a string, or an instance of Name or NullableType');
}
return $type;
}
$nullable = false;
if (strlen($type) > 0 && $type[0] === '?') {
$nullable = true;
$type = substr($type, 1);
}
$builtinTypes = array(
'array', 'callable', 'string', 'int', 'float', 'bool', 'iterable', 'void', 'object'
);
$lowerType = strtolower($type);
if (in_array($lowerType, $builtinTypes)) {
$type = $lowerType;
} else {
$type = $this->normalizeName($type);
}
if ($nullable && $type === 'void') {
throw new \LogicException('void type cannot be nullable');
}
return $nullable ? new Node\NullableType($type) : $type;
}
/**
* Normalizes a value: Converts nulls, booleans, integers,
* floats, strings and arrays into their respective nodes
*
* @param mixed $value The value to normalize
*
* @return Expr The normalized value
*/
protected function normalizeValue($value) {
if ($value instanceof Node) {
return $value;
} elseif (is_null($value)) {
return new Expr\ConstFetch(
new Name('null')
);
} elseif (is_bool($value)) {
return new Expr\ConstFetch(
new Name($value ? 'true' : 'false')
);
} elseif (is_int($value)) {
return new Scalar\LNumber($value);
} elseif (is_float($value)) {
return new Scalar\DNumber($value);
} elseif (is_string($value)) {
return new Scalar\String_($value);
} elseif (is_array($value)) {
$items = array();
$lastKey = -1;
foreach ($value as $itemKey => $itemValue) {
// for consecutive, numeric keys don't generate keys
if (null !== $lastKey && ++$lastKey === $itemKey) {
$items[] = new Expr\ArrayItem(
$this->normalizeValue($itemValue)
);
} else {
$lastKey = null;
$items[] = new Expr\ArrayItem(
$this->normalizeValue($itemValue),
$this->normalizeValue($itemKey)
);
}
}
return new Expr\Array_($items);
} else {
throw new \LogicException('Invalid value');
}
}
/**
* Normalizes a doc comment: Converts plain strings to PhpParser\Comment\Doc.
*
* @param Comment\Doc|string $docComment The doc comment to normalize
*
* @return Comment\Doc The normalized doc comment
*/
protected function normalizeDocComment($docComment) {
if ($docComment instanceof Comment\Doc) {
return $docComment;
} else if (is_string($docComment)) {
return new Comment\Doc($docComment);
} else {
throw new \LogicException('Doc comment must be a string or an instance of PhpParser\Comment\Doc');
}
}
/**
* Sets a modifier in the $this->type property.
*
* @param int $modifier Modifier to set
*/
protected function setModifier($modifier) {
Stmt\Class_::verifyModifier($this->flags, $modifier);
$this->flags |= $modifier;
}
}