mirror of
https://github.com/danog/PHP-Parser.git
synced 2024-12-16 03:16:54 +01:00
207 lines
6.5 KiB
PHP
207 lines
6.5 KiB
PHP
<?php declare(strict_types=1);
|
|
|
|
namespace PhpParser;
|
|
|
|
use PhpParser\Node\Expr;
|
|
use PhpParser\Node\Identifier;
|
|
use PhpParser\Node\Name;
|
|
use PhpParser\Node\NullableType;
|
|
use PhpParser\Node\Scalar;
|
|
use PhpParser\Node\Stmt;
|
|
|
|
/**
|
|
* This class defines helpers used in the implementation of builders. Don't use it directly.
|
|
*
|
|
* @internal
|
|
*/
|
|
final class BuilderHelpers {
|
|
/**
|
|
* Normalizes a node: Converts builder objects to nodes.
|
|
*
|
|
* @param Node|Builder $node The node to normalize
|
|
*
|
|
* @return Node The normalized node
|
|
*/
|
|
public static function normalizeNode($node) : Node {
|
|
if ($node instanceof Builder) {
|
|
return $node->getNode();
|
|
} elseif ($node instanceof Node) {
|
|
return $node;
|
|
}
|
|
|
|
throw new \LogicException('Expected node or builder object');
|
|
}
|
|
|
|
/**
|
|
* Normalizes a node to a statement.
|
|
*
|
|
* Expressions are wrapped in a Stmt\Expression node.
|
|
*
|
|
* @param Node|Builder $node The node to normalize
|
|
*
|
|
* @return Stmt The normalized statement node
|
|
*/
|
|
public static function normalizeStmt($node) : Stmt {
|
|
$node = self::normalizeNode($node);
|
|
if ($node instanceof Stmt) {
|
|
return $node;
|
|
}
|
|
|
|
if ($node instanceof Expr) {
|
|
return new Stmt\Expression($node);
|
|
}
|
|
|
|
throw new \LogicException('Expected statement or expression node');
|
|
}
|
|
|
|
/**
|
|
* Normalizes a name: Converts plain string names to PhpParser\Node\Name.
|
|
*
|
|
* @param Name|string $name The name to normalize
|
|
*
|
|
* @return Name The normalized name
|
|
*/
|
|
public static function normalizeName($name) : 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 become Identifiers, custom types become Names and nullables
|
|
* are wrapped in NullableType nodes.
|
|
*
|
|
* @param string|Name|Identifier|NullableType $type The type to normalize
|
|
*
|
|
* @return Name|Identifier|NullableType The normalized type
|
|
*/
|
|
public static function normalizeType($type) {
|
|
if (!is_string($type)) {
|
|
if (!$type instanceof Name && !$type instanceof Identifier
|
|
&& !$type instanceof NullableType) {
|
|
throw new \LogicException(
|
|
'Type must be a string, or an instance of Name, Identifier or NullableType');
|
|
}
|
|
return $type;
|
|
}
|
|
|
|
$nullable = false;
|
|
if (strlen($type) > 0 && $type[0] === '?') {
|
|
$nullable = true;
|
|
$type = substr($type, 1);
|
|
}
|
|
|
|
$builtinTypes = [
|
|
'array', 'callable', 'string', 'int', 'float', 'bool', 'iterable', 'void', 'object'
|
|
];
|
|
|
|
$lowerType = strtolower($type);
|
|
if (in_array($lowerType, $builtinTypes)) {
|
|
$type = new Identifier($lowerType);
|
|
} else {
|
|
$type = self::normalizeName($type);
|
|
}
|
|
|
|
if ($nullable && (string) $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 Node\Expr|bool|null|int|float|string|array $value The value to normalize
|
|
*
|
|
* @return Expr The normalized value
|
|
*/
|
|
public static function normalizeValue($value) : Expr {
|
|
if ($value instanceof Node\Expr) {
|
|
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 = [];
|
|
$lastKey = -1;
|
|
foreach ($value as $itemKey => $itemValue) {
|
|
// for consecutive, numeric keys don't generate keys
|
|
if (null !== $lastKey && ++$lastKey === $itemKey) {
|
|
$items[] = new Expr\ArrayItem(
|
|
self::normalizeValue($itemValue)
|
|
);
|
|
} else {
|
|
$lastKey = null;
|
|
$items[] = new Expr\ArrayItem(
|
|
self::normalizeValue($itemValue),
|
|
self::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 $docComment The doc comment to normalize
|
|
*
|
|
* @return Comment\Doc The normalized doc comment
|
|
*/
|
|
public static function normalizeDocComment($docComment) : Comment\Doc {
|
|
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');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds a modifier and returns new modifier bitmask.
|
|
*
|
|
* @param int $modifiers Existing modifiers
|
|
* @param int $modifier Modifier to set
|
|
*
|
|
* @return int New modifiers
|
|
*/
|
|
public static function addModifier(int $modifiers, int $modifier) : int {
|
|
Stmt\Class_::verifyModifier($modifiers, $modifier);
|
|
return $modifiers | $modifier;
|
|
}
|
|
}
|