Skip to content
  • P
    Projects
  • G
    Groups
  • S
    Snippets
  • Help

semour / semour_web

  • This project
    • Loading...
  • Sign in
Go to a project
  • Project
  • Repository
  • Issues 0
  • Merge Requests 0
  • Pipelines
  • Wiki
  • Snippets
  • Settings
  • Activity
  • Graph
  • Charts
  • Create a new issue
  • Jobs
  • Commits
  • Issue Boards
  • Files
  • Commits
  • Branches
  • Tags
  • Contributors
  • Graph
  • Compare
  • Charts
Find file
BlameHistoryPermalink
Switch branch/tag
  • semour_web
  • vendor
  • nikic
  • php-parser
  • lib
  • PhpParser
  • BuilderHelpers.php
  • mushishixian's avatar
    扩展包 · 889d39c3
    mushishixian committed 2 years ago
    889d39c3
BuilderHelpers.php 9.54 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335
<?php declare(strict_types=1);

namespace PhpParser;

use PhpParser\Node\ComplexType;
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();
        }

        if ($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 strings to Identifier.
     *
     * @param string|Identifier $name The identifier to normalize
     *
     * @return Identifier The normalized identifier
     */
    public static function normalizeIdentifier($name) : Identifier {
        if ($name instanceof Identifier) {
            return $name;
        }

        if (\is_string($name)) {
            return new Identifier($name);
        }

        throw new \LogicException('Expected string or instance of Node\Identifier');
    }

    /**
     * Normalizes strings to Identifier, also allowing expressions.
     *
     * @param string|Identifier|Expr $name The identifier to normalize
     *
     * @return Identifier|Expr The normalized identifier or expression
     */
    public static function normalizeIdentifierOrExpr($name) {
        if ($name instanceof Identifier || $name instanceof Expr) {
            return $name;
        }

        if (\is_string($name)) {
            return new Identifier($name);
        }

        throw new \LogicException('Expected string or instance of Node\Identifier or Node\Expr');
    }

    /**
     * Normalizes a name: Converts string names to Name nodes.
     *
     * @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;
        }

        if (is_string($name)) {
            if (!$name) {
                throw new \LogicException('Name cannot be empty');
            }

            if ($name[0] === '\\') {
                return new Name\FullyQualified(substr($name, 1));
            }

            if (0 === strpos($name, 'namespace\\')) {
                return new Name\Relative(substr($name, strlen('namespace\\')));
            }

            return new Name($name);
        }

        throw new \LogicException('Name must be a string or an instance of Node\Name');
    }

    /**
     * Normalizes a name: Converts string names to Name nodes, while also allowing expressions.
     *
     * @param Expr|Name|string $name The name to normalize
     *
     * @return Name|Expr The normalized name or expression
     */
    public static function normalizeNameOrExpr($name) {
        if ($name instanceof Expr) {
            return $name;
        }

        if (!is_string($name) && !($name instanceof Name)) {
            throw new \LogicException(
                'Name must be a string or an instance of Node\Name or Node\Expr'
            );
        }

        return self::normalizeName($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|ComplexType $type The type to normalize
     *
     * @return Name|Identifier|ComplexType The normalized type
     */
    public static function normalizeType($type) {
        if (!is_string($type)) {
            if (
                !$type instanceof Name && !$type instanceof Identifier &&
                !$type instanceof ComplexType
            ) {
                throw new \LogicException(
                    'Type must be a string, or an instance of Name, Identifier or ComplexType'
                );
            }
            return $type;
        }

        $nullable = false;
        if (strlen($type) > 0 && $type[0] === '?') {
            $nullable = true;
            $type = substr($type, 1);
        }

        $builtinTypes = [
            'array',
            'callable',
            'bool',
            'int',
            'float',
            'string',
            'iterable',
            'void',
            'object',
            'null',
            'false',
            'mixed',
            'never',
            'true',
        ];

        $lowerType = strtolower($type);
        if (in_array($lowerType, $builtinTypes)) {
            $type = new Identifier($lowerType);
        } else {
            $type = self::normalizeName($type);
        }

        $notNullableTypes = [
            'void', 'mixed', 'never',
        ];
        if ($nullable && in_array((string) $type, $notNullableTypes)) {
            throw new \LogicException(sprintf('%s type cannot be nullable', $type));
        }

        return $nullable ? new NullableType($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;
        }

        if (is_null($value)) {
            return new Expr\ConstFetch(
                new Name('null')
            );
        }

        if (is_bool($value)) {
            return new Expr\ConstFetch(
                new Name($value ? 'true' : 'false')
            );
        }

        if (is_int($value)) {
            return new Scalar\LNumber($value);
        }

        if (is_float($value)) {
            return new Scalar\DNumber($value);
        }

        if (is_string($value)) {
            return new Scalar\String_($value);
        }

        if (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);
        }

        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;
        }

        if (is_string($docComment)) {
            return new Comment\Doc($docComment);
        }

        throw new \LogicException('Doc comment must be a string or an instance of PhpParser\Comment\Doc');
    }

    /**
     * Normalizes a attribute: Converts attribute to the Attribute Group if needed.
     *
     * @param Node\Attribute|Node\AttributeGroup $attribute
     *
     * @return Node\AttributeGroup The Attribute Group
     */
    public static function normalizeAttribute($attribute) : Node\AttributeGroup
    {
        if ($attribute instanceof Node\AttributeGroup) {
            return $attribute;
        }

        if (!($attribute instanceof Node\Attribute)) {
            throw new \LogicException('Attribute must be an instance of PhpParser\Node\Attribute or PhpParser\Node\AttributeGroup');
        }

        return new Node\AttributeGroup([$attribute]);
    }

    /**
     * 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;
    }

    /**
     * Adds a modifier and returns new modifier bitmask.
     * @return int New modifiers
     */
    public static function addClassModifier(int $existingModifiers, int $modifierToSet) : int {
        Stmt\Class_::verifyClassModifier($existingModifiers, $modifierToSet);
        return $existingModifiers | $modifierToSet;
    }
}