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#!/usr/bin/env php
<?php declare(strict_types=1);
use PhpParser\Comment\Doc as DocComment;
use PhpParser\ConstExprEvaluator;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Name;
use PhpParser\Node\Stmt;
use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\Enum_;
use PhpParser\Node\Stmt\Interface_;
use PhpParser\Node\Stmt\Trait_;
use PhpParser\PrettyPrinter\Standard;
use PhpParser\PrettyPrinterAbstract;
error_reporting(E_ALL);
ini_set("precision", "-1");
const PHP_70_VERSION_ID = 70000;
const PHP_80_VERSION_ID = 80000;
const PHP_81_VERSION_ID = 80100;
const PHP_82_VERSION_ID = 80200;
const ALL_PHP_VERSION_IDS = [PHP_70_VERSION_ID, PHP_80_VERSION_ID, PHP_81_VERSION_ID, PHP_82_VERSION_ID];
/**
* @return FileInfo[]
*/
function processDirectory(string $dir, Context $context): array {
$pathNames = [];
$it = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($dir),
RecursiveIteratorIterator::LEAVES_ONLY
);
foreach ($it as $file) {
$pathName = $file->getPathName();
if (preg_match('/\.stub\.php$/', $pathName)) {
$pathNames[] = $pathName;
}
}
// Make sure stub files are processed in a predictable, system-independent order.
sort($pathNames);
$fileInfos = [];
foreach ($pathNames as $pathName) {
$fileInfo = processStubFile($pathName, $context);
if ($fileInfo) {
$fileInfos[] = $fileInfo;
}
}
return $fileInfos;
}
function processStubFile(string $stubFile, Context $context, bool $includeOnly = false): ?FileInfo {
try {
if (!file_exists($stubFile)) {
throw new Exception("File $stubFile does not exist");
}
if (!$includeOnly) {
$stubFilenameWithoutExtension = str_replace(".stub.php", "", $stubFile);
$arginfoFile = "{$stubFilenameWithoutExtension}_arginfo.h";
$legacyFile = "{$stubFilenameWithoutExtension}_legacy_arginfo.h";
$stubCode = file_get_contents($stubFile);
$stubHash = computeStubHash($stubCode);
$oldStubHash = extractStubHash($arginfoFile);
if ($stubHash === $oldStubHash && !$context->forceParse) {
/* Stub file did not change, do not regenerate. */
return null;
}
}
if (!$fileInfo = $context->parsedFiles[$stubFile] ?? null) {
initPhpParser();
$fileInfo = parseStubFile($stubCode ?? file_get_contents($stubFile));
$context->parsedFiles[$stubFile] = $fileInfo;
foreach ($fileInfo->dependencies as $dependency) {
// TODO add header search path for extensions?
$prefixes = [dirname($stubFile) . "/", dirname(__DIR__) . "/"];
foreach ($prefixes as $prefix) {
$depFile = $prefix . $dependency;
if (file_exists($depFile)) {
break;
}
$depFile = null;
}
if (!$depFile) {
throw new Exception("File $stubFile includes a file $dependency which does not exist");
}
processStubFile($depFile, $context, true);
}
$constInfos = $fileInfo->getAllConstInfos();
$context->allConstInfos = array_merge($context->allConstInfos, $constInfos);
}
if ($includeOnly) {
return $fileInfo;
}
$arginfoCode = generateArgInfoCode(
basename($stubFilenameWithoutExtension),
$fileInfo,
$context->allConstInfos,
$stubHash
);
if (($context->forceRegeneration || $stubHash !== $oldStubHash) && file_put_contents($arginfoFile, $arginfoCode)) {
echo "Saved $arginfoFile\n";
}
if ($fileInfo->generateLegacyArginfoForPhpVersionId !== null && $fileInfo->generateLegacyArginfoForPhpVersionId < PHP_80_VERSION_ID) {
$legacyFileInfo = clone $fileInfo;
foreach ($legacyFileInfo->getAllFuncInfos() as $funcInfo) {
$funcInfo->discardInfoForOldPhpVersions();
}
foreach ($legacyFileInfo->getAllConstInfos() as $constInfo) {
$constInfo->discardInfoForOldPhpVersions();
}
foreach ($legacyFileInfo->getAllPropertyInfos() as $propertyInfo) {
$propertyInfo->discardInfoForOldPhpVersions();
}
$arginfoCode = generateArgInfoCode(
basename($stubFilenameWithoutExtension),
$legacyFileInfo,
$context->allConstInfos,
$stubHash
);
if (($context->forceRegeneration || $stubHash !== $oldStubHash) && file_put_contents($legacyFile, $arginfoCode)) {
echo "Saved $legacyFile\n";
}
}
return $fileInfo;
} catch (Exception $e) {
echo "In $stubFile:\n{$e->getMessage()}\n";
exit(1);
}
}
function computeStubHash(string $stubCode): string {
return sha1(str_replace("\r\n", "\n", $stubCode));
}
function extractStubHash(string $arginfoFile): ?string {
if (!file_exists($arginfoFile)) {
return null;
}
$arginfoCode = file_get_contents($arginfoFile);
if (!preg_match('/\* Stub hash: ([0-9a-f]+) \*/', $arginfoCode, $matches)) {
return null;
}
return $matches[1];
}
class Context {
public bool $forceParse = false;
public bool $forceRegeneration = false;
/** @var iterable<ConstInfo> */
public iterable $allConstInfos = [];
/** @var FileInfo[] */
public array $parsedFiles = [];
}
class ArrayType extends SimpleType {
public Type $keyType;
public Type $valueType;
public static function createGenericArray(): self
{
return new ArrayType(Type::fromString("int|string"), Type::fromString("mixed|ref"));
}
public function __construct(Type $keyType, Type $valueType)
{
parent::__construct("array", true);
$this->keyType = $keyType;
$this->valueType = $valueType;
}
public function toOptimizerTypeMask(): string {
$typeMasks = [
parent::toOptimizerTypeMask(),
$this->keyType->toOptimizerTypeMaskForArrayKey(),
$this->valueType->toOptimizerTypeMaskForArrayValue(),
];
return implode("|", $typeMasks);
}
public function equals(SimpleType $other): bool {
if (!parent::equals($other)) {
return false;
}
assert(get_class($other) === self::class);
return Type::equals($this->keyType, $other->keyType) &&
Type::equals($this->valueType, $other->valueType);
}
}
class SimpleType {
public string $name;
public bool $isBuiltin;
public static function fromNode(Node $node): SimpleType {
if ($node instanceof Node\Name) {
if ($node->toLowerString() === 'static') {
// PHP internally considers "static" a builtin type.
return new SimpleType($node->toLowerString(), true);
}
if ($node->toLowerString() === 'true') {
// TODO PHP-Parser doesn't yet recognize true as a stand-alone built-in type
return new SimpleType($node->toLowerString(), true);
}
if ($node->toLowerString() === 'self') {
throw new Exception('The exact class name must be used instead of "self"');
}
assert($node->isFullyQualified());
return new SimpleType($node->toString(), false);
}
if ($node instanceof Node\Identifier) {
if ($node->toLowerString() === 'array') {
return ArrayType::createGenericArray();
}
return new SimpleType($node->toLowerString(), true);
}
throw new Exception("Unexpected node type");
}
public static function fromString(string $typeString): SimpleType
{
switch (strtolower($typeString)) {
case "void":
case "null":
case "false":
case "true":
case "bool":
case "int":
case "float":
case "string":
case "callable":
case "object":
case "resource":
case "mixed":
case "static":
case "never":
case "ref":
return new SimpleType(strtolower($typeString), true);
case "array":
return ArrayType::createGenericArray();
case "self":
throw new Exception('The exact class name must be used instead of "self"');
case "iterable":
throw new Exception('This should not happen');
}
$matches = [];
$isArray = preg_match("/(.*)\s*\[\s*\]/", $typeString, $matches);
if ($isArray) {
return new ArrayType(Type::fromString("int"), Type::fromString($matches[1]));
}
$matches = [];
$isArray = preg_match("/array\s*<\s*([A-Za-z0-9_-|]+)?(\s*,\s*)?([A-Za-z0-9_-|]+)?\s*>/i", $typeString, $matches);
if ($isArray) {
if (empty($matches[1]) || empty($matches[3])) {
throw new Exception("array<> type hint must have both a key and a value");
}
return new ArrayType(Type::fromString($matches[1]), Type::fromString($matches[3]));
}
return new SimpleType($typeString, false);
}
/**
* @param mixed $value
*/
public static function fromValue($value): SimpleType
{
switch (gettype($value)) {
case "NULL":
return SimpleType::null();
case "boolean":
return SimpleType::bool();
case "integer":
return SimpleType::int();
case "double":
return SimpleType::float();
case "string":
return SimpleType::string();
case "array":
return SimpleType::array();
case "object":
return SimpleType::object();
default:
throw new Exception("Type \"" . gettype($value) . "\" cannot be inferred based on value");
}
}
public static function null(): SimpleType
{
return new SimpleType("null", true);
}
public static function bool(): SimpleType
{
return new SimpleType("bool", true);
}
public static function int(): SimpleType
{
return new SimpleType("int", true);
}
public static function float(): SimpleType
{
return new SimpleType("float", true);
}
public static function string(): SimpleType
{
return new SimpleType("string", true);
}
public static function array(): SimpleType
{
return new SimpleType("array", true);
}
public static function object(): SimpleType
{
return new SimpleType("object", true);
}
public static function void(): SimpleType
{
return new SimpleType("void", true);
}
protected function __construct(string $name, bool $isBuiltin) {
$this->name = $name;
$this->isBuiltin = $isBuiltin;
}
public function isScalar(): bool {
return $this->isBuiltin && in_array($this->name, ["null", "false", "true", "bool", "int", "float"], true);
}
public function isNull(): bool {
return $this->isBuiltin && $this->name === 'null';
}
public function isBool(): bool {
return $this->isBuiltin && $this->name === 'bool';
}
public function isInt(): bool {
return $this->isBuiltin && $this->name === 'int';
}
public function isFloat(): bool {
return $this->isBuiltin && $this->name === 'float';
}
public function isString(): bool {
return $this->isBuiltin && $this->name === 'string';
}
public function isArray(): bool {
return $this->isBuiltin && $this->name === 'array';
}
public function toTypeCode(): string {
assert($this->isBuiltin);
switch ($this->name) {
case "bool":
return "_IS_BOOL";
case "int":
return "IS_LONG";
case "float":
return "IS_DOUBLE";
case "string":
return "IS_STRING";
case "array":
return "IS_ARRAY";
case "object":
return "IS_OBJECT";
case "void":
return "IS_VOID";
case "callable":
return "IS_CALLABLE";
case "mixed":
return "IS_MIXED";
case "static":
return "IS_STATIC";
case "never":
return "IS_NEVER";
case "null":
return "IS_NULL";
case "false":
return "IS_FALSE";
case "true":
return "IS_TRUE";
default:
throw new Exception("Not implemented: $this->name");
}
}
public function toTypeMask(): string {
assert($this->isBuiltin);
switch ($this->name) {
case "null":
return "MAY_BE_NULL";
case "false":
return "MAY_BE_FALSE";
case "true":
return "MAY_BE_TRUE";
case "bool":
return "MAY_BE_BOOL";
case "int":
return "MAY_BE_LONG";
case "float":
return "MAY_BE_DOUBLE";
case "string":
return "MAY_BE_STRING";
case "array":
return "MAY_BE_ARRAY";
case "object":
return "MAY_BE_OBJECT";
case "callable":
return "MAY_BE_CALLABLE";
case "mixed":
return "MAY_BE_ANY";
case "void":
return "MAY_BE_VOID";
case "static":
return "MAY_BE_STATIC";
case "never":
return "MAY_BE_NEVER";
default:
throw new Exception("Not implemented: $this->name");
}
}
public function toOptimizerTypeMaskForArrayKey(): string {
assert($this->isBuiltin);
switch ($this->name) {
case "int":
return "MAY_BE_ARRAY_KEY_LONG";
case "string":
return "MAY_BE_ARRAY_KEY_STRING";
default:
throw new Exception("Type $this->name cannot be an array key");
}
}
public function toOptimizerTypeMaskForArrayValue(): string {
if (!$this->isBuiltin) {
return "MAY_BE_ARRAY_OF_OBJECT";
}
switch ($this->name) {
case "null":
return "MAY_BE_ARRAY_OF_NULL";
case "false":
return "MAY_BE_ARRAY_OF_FALSE";
case "true":
return "MAY_BE_ARRAY_OF_TRUE";
case "bool":
return "MAY_BE_ARRAY_OF_FALSE|MAY_BE_ARRAY_OF_TRUE";
case "int":
return "MAY_BE_ARRAY_OF_LONG";
case "float":
return "MAY_BE_ARRAY_OF_DOUBLE";
case "string":
return "MAY_BE_ARRAY_OF_STRING";
case "array":
return "MAY_BE_ARRAY_OF_ARRAY";
case "object":
return "MAY_BE_ARRAY_OF_OBJECT";
case "resource":
return "MAY_BE_ARRAY_OF_RESOURCE";
case "mixed":
return "MAY_BE_ARRAY_OF_ANY";
case "ref":
return "MAY_BE_ARRAY_OF_REF";
default:
throw new Exception("Type $this->name cannot be an array value");
}
}
public function toOptimizerTypeMask(): string {
if (!$this->isBuiltin) {
return "MAY_BE_OBJECT";
}
switch ($this->name) {
case "resource":
return "MAY_BE_RESOURCE";
case "callable":
return "MAY_BE_STRING|MAY_BE_ARRAY|MAY_BE_ARRAY_KEY_LONG|MAY_BE_ARRAY_OF_STRING|MAY_BE_ARRAY_OF_OBJECT|MAY_BE_OBJECT";
case "iterable":
return "MAY_BE_ARRAY|MAY_BE_ARRAY_KEY_ANY|MAY_BE_ARRAY_OF_ANY|MAY_BE_OBJECT";
case "mixed":
return "MAY_BE_ANY|MAY_BE_ARRAY_KEY_ANY|MAY_BE_ARRAY_OF_ANY";
}
return $this->toTypeMask();
}
public function toEscapedName(): string {
// Escape backslashes, and also encode \u, \U, and \N to avoid compilation errors in generated macros
return str_replace(
['\\', '\\u', '\\U', '\\N'],
['\\\\', '\\\\165', '\\\\125', '\\\\116'],
$this->name
);
}
public function toVarEscapedName(): string {
return str_replace('\\', '_', $this->name);
}
public function equals(SimpleType $other): bool {
return $this->name === $other->name && $this->isBuiltin === $other->isBuiltin;
}
}
class Type {
/** @var SimpleType[] */
public array $types;
public bool $isIntersection;
public static function fromNode(Node $node): Type {
if ($node instanceof Node\UnionType || $node instanceof Node\IntersectionType) {
$nestedTypeObjects = array_map(['Type', 'fromNode'], $node->types);
$types = [];
foreach ($nestedTypeObjects as $typeObject) {
array_push($types, ...$typeObject->types);
}
return new Type($types, ($node instanceof Node\IntersectionType));
}
if ($node instanceof Node\NullableType) {
return new Type(
[
...Type::fromNode($node->type)->types,
SimpleType::null(),
],
false
);
}
if ($node instanceof Node\Identifier && $node->toLowerString() === "iterable") {
return new Type(
[
SimpleType::fromString("Traversable"),
ArrayType::createGenericArray(),
],
false
);
}
return new Type([SimpleType::fromNode($node)], false);
}
public static function fromString(string $typeString): self {
$typeString .= "|";
$simpleTypes = [];
$simpleTypeOffset = 0;
$inArray = false;
$isIntersection = false;
$typeStringLength = strlen($typeString);
for ($i = 0; $i < $typeStringLength; $i++) {
$char = $typeString[$i];
if ($char === "<") {
$inArray = true;
continue;
}
if ($char === ">") {
$inArray = false;
continue;
}
if ($inArray) {
continue;
}
if ($char === "|" || $char === "&") {
$isIntersection = ($char === "&");
$simpleTypeName = trim(substr($typeString, $simpleTypeOffset, $i - $simpleTypeOffset));
$simpleTypes[] = SimpleType::fromString($simpleTypeName);
$simpleTypeOffset = $i + 1;
}
}
return new Type($simpleTypes, $isIntersection);
}
/**
* @param SimpleType[] $types
*/
private function __construct(array $types, bool $isIntersection) {
$this->types = $types;
$this->isIntersection = $isIntersection;
}
public function isScalar(): bool {
foreach ($this->types as $type) {
if (!$type->isScalar()) {
return false;
}
}
return true;
}
public function isNullable(): bool {
foreach ($this->types as $type) {
if ($type->isNull()) {
return true;
}
}
return false;
}
public function getWithoutNull(): Type {
return new Type(
array_filter(
$this->types,
function(SimpleType $type) {
return !$type->isNull();
}
),
false
);
}
public function tryToSimpleType(): ?SimpleType {
$withoutNull = $this->getWithoutNull();
/* type has only null */
if (count($withoutNull->types) === 0) {
return $this->types[0];
}
if (count($withoutNull->types) === 1) {
return $withoutNull->types[0];
}
return null;
}
public function toArginfoType(): ArginfoType {
$classTypes = [];
$builtinTypes = [];
foreach ($this->types as $type) {
if ($type->isBuiltin) {
$builtinTypes[] = $type;
} else {
$classTypes[] = $type;
}
}
return new ArginfoType($classTypes, $builtinTypes);
}
public function toOptimizerTypeMask(): string {
$optimizerTypes = [];
foreach ($this->types as $type) {
// TODO Support for toOptimizerMask for intersection
$optimizerTypes[] = $type->toOptimizerTypeMask();
}
return implode("|", $optimizerTypes);
}
public function toOptimizerTypeMaskForArrayKey(): string {
$typeMasks = [];
foreach ($this->types as $type) {
$typeMasks[] = $type->toOptimizerTypeMaskForArrayKey();
}
return implode("|", $typeMasks);
}
public function toOptimizerTypeMaskForArrayValue(): string {
$typeMasks = [];
foreach ($this->types as $type) {
$typeMasks[] = $type->toOptimizerTypeMaskForArrayValue();
}
return implode("|", $typeMasks);
}
public function getTypeForDoc(DOMDocument $doc): DOMElement {
if (count($this->types) > 1) {
$typeSort = $this->isIntersection ? "intersection" : "union";
$typeElement = $doc->createElement('type');
$typeElement->setAttribute("class", $typeSort);
foreach ($this->types as $type) {
$unionTypeElement = $doc->createElement('type', $type->name);
$typeElement->appendChild($unionTypeElement);
}
} else {
$type = $this->types[0];
if ($type->isBuiltin && strtolower($type->name) === "true") {
$name = "bool";
} else {
$name = $type->name;
}
$typeElement = $doc->createElement('type', $name);
}
return $typeElement;
}
public static function equals(?Type $a, ?Type $b): bool {
if ($a === null || $b === null) {
return $a === $b;
}
if (count($a->types) !== count($b->types)) {
return false;
}
for ($i = 0; $i < count($a->types); $i++) {
if (!$a->types[$i]->equals($b->types[$i])) {
return false;
}
}
return true;
}
public function __toString() {
if ($this->types === null) {
return 'mixed';
}
$char = $this->isIntersection ? '&' : '|';
return implode($char, array_map(
function ($type) { return $type->name; },
$this->types)
);
}
}
class ArginfoType {
/** @var SimpleType[] $classTypes */
public array $classTypes;
/** @var SimpleType[] $builtinTypes */
private array $builtinTypes;
/**
* @param SimpleType[] $classTypes
* @param SimpleType[] $builtinTypes
*/
public function __construct(array $classTypes, array $builtinTypes) {
$this->classTypes = $classTypes;
$this->builtinTypes = $builtinTypes;
}
public function hasClassType(): bool {
return !empty($this->classTypes);
}
public function toClassTypeString(): string {
return implode('|', array_map(function(SimpleType $type) {
return $type->toEscapedName();
}, $this->classTypes));
}
public function toTypeMask(): string {
if (empty($this->builtinTypes)) {
return '0';
}
return implode('|', array_map(function(SimpleType $type) {
return $type->toTypeMask();
}, $this->builtinTypes));
}
}
class ArgInfo {
const SEND_BY_VAL = 0;
const SEND_BY_REF = 1;
const SEND_PREFER_REF = 2;
public string $name;
public int $sendBy;
public bool $isVariadic;
public ?Type $type;
public ?Type $phpDocType;
public ?string $defaultValue;
/** @var AttributeInfo[] */
public array $attributes;
/**
* @param AttributeInfo[] $attributes
*/
public function __construct(
string $name,
int $sendBy,
bool $isVariadic,
?Type $type,
?Type $phpDocType,
?string $defaultValue,
array $attributes
) {
$this->name = $name;
$this->sendBy = $sendBy;
$this->isVariadic = $isVariadic;
$this->setTypes($type, $phpDocType);
$this->defaultValue = $defaultValue;
$this->attributes = $attributes;
}
public function equals(ArgInfo $other): bool {
return $this->name === $other->name
&& $this->sendBy === $other->sendBy
&& $this->isVariadic === $other->isVariadic
&& Type::equals($this->type, $other->type)
&& $this->defaultValue === $other->defaultValue;
}
public function getSendByString(): string {
switch ($this->sendBy) {
case self::SEND_BY_VAL:
return "0";
case self::SEND_BY_REF:
return "1";
case self::SEND_PREFER_REF:
return "ZEND_SEND_PREFER_REF";
}
throw new Exception("Invalid sendBy value");
}
public function getMethodSynopsisType(): Type {
if ($this->type) {
return $this->type;
}
if ($this->phpDocType) {
return $this->phpDocType;
}
throw new Exception("A parameter must have a type");
}
public function hasProperDefaultValue(): bool {
return $this->defaultValue !== null && $this->defaultValue !== "UNKNOWN";
}
public function getDefaultValueAsArginfoString(): string {
if ($this->hasProperDefaultValue()) {
return '"' . addslashes($this->defaultValue) . '"';
}
return "NULL";
}
public function getDefaultValueAsMethodSynopsisString(): ?string {
if ($this->defaultValue === null) {
return null;
}
switch ($this->defaultValue) {
case 'UNKNOWN':
return null;
case 'false':
case 'true':
case 'null':
return "&{$this->defaultValue};";
}
return $this->defaultValue;
}
private function setTypes(?Type $type, ?Type $phpDocType): void
{
$this->type = $type;
$this->phpDocType = $phpDocType;
}
}
interface ConstOrClassConstName {
public function __toString(): string;
public function equals(ConstOrClassConstName $const): bool;
public function isClassConst(): bool;
public function isUnknown(): bool;
}
abstract class AbstractConstName implements ConstOrClassConstName
{
public function equals(ConstOrClassConstName $const): bool
{
return $this->__toString() === $const->__toString();
}
public function isUnknown(): bool
{
return strtolower($this->__toString()) === "unknown";
}
}
class ConstName extends AbstractConstName {
public string $const;
public function __construct(?Name $namespace, string $const)
{
if ($namespace && ($namespace = $namespace->slice(0, -1))) {
$const = $namespace->toString() . '\\' . $const;
}
$this->const = $const;
}
public function isClassConst(): bool
{
return false;
}
public function isUnknown(): bool
{
$name = $this->__toString();
if (($pos = strrpos($name, '\\')) !== false) {
$name = substr($name, $pos + 1);
}
return strtolower($name) === "unknown";
}
public function __toString(): string
{
return $this->const;
}
}
class ClassConstName extends AbstractConstName {
public Name $class;
public string $const;
public function __construct(Name $class, string $const)
{
$this->class = $class;
$this->const = $const;
}
public function isClassConst(): bool
{
return true;
}
public function __toString(): string
{
return $this->class->toString() . "::" . $this->const;
}
}
class PropertyName {
public Name $class;
public string $property;
public function __construct(Name $class, string $property)
{
$this->class = $class;
$this->property = $property;
}
public function __toString(): string
{
return $this->class->toString() . "::$" . $this->property;
}
}
interface FunctionOrMethodName {
public function getDeclaration(): string;
public function getArgInfoName(): string;
public function getMethodSynopsisFilename(): string;
public function getNameForAttributes(): string;
public function __toString(): string;
public function isMethod(): bool;
public function isConstructor(): bool;
public function isDestructor(): bool;
}
class FunctionName implements FunctionOrMethodName {
private Name $name;
public function __construct(Name $name) {
$this->name = $name;
}
public function getNamespace(): ?string {
if ($this->name->isQualified()) {
return $this->name->slice(0, -1)->toString();
}
return null;
}
public function getNonNamespacedName(): string {
if ($this->name->isQualified()) {
throw new Exception("Namespaced name not supported here");
}
return $this->name->toString();
}
public function getDeclarationName(): string {
return implode('_', $this->name->parts);
}
public function getFunctionName(): string {
return $this->name->getLast();
}
public function getDeclaration(): string {
return "ZEND_FUNCTION({$this->getDeclarationName()});\n";
}
public function getArgInfoName(): string {
$underscoreName = implode('_', $this->name->parts);
return "arginfo_$underscoreName";
}
public function getMethodSynopsisFilename(): string {
return implode('_', $this->name->parts);
}
public function getNameForAttributes(): string {
return strtolower($this->name->toString());
}
public function __toString(): string {
return $this->name->toString();
}
public function isMethod(): bool {
return false;
}
public function isConstructor(): bool {
return false;
}
public function isDestructor(): bool {
return false;
}
}
class MethodName implements FunctionOrMethodName {
public Name $className;
public string $methodName;
public function __construct(Name $className, string $methodName) {
$this->className = $className;
$this->methodName = $methodName;
}
public function getDeclarationClassName(): string {
return implode('_', $this->className->parts);
}
public function getDeclaration(): string {
return "ZEND_METHOD({$this->getDeclarationClassName()}, $this->methodName);\n";
}
public function getArgInfoName(): string {
return "arginfo_class_{$this->getDeclarationClassName()}_{$this->methodName}";
}
public function getMethodSynopsisFilename(): string {
return $this->getDeclarationClassName() . "_{$this->methodName}";
}
public function getNameForAttributes(): string {
return strtolower($this->methodName);
}
public function __toString(): string {
return "$this->className::$this->methodName";
}
public function isMethod(): bool {
return true;
}
public function isConstructor(): bool {
return $this->methodName === "__construct";
}
public function isDestructor(): bool {
return $this->methodName === "__destruct";
}
}
class ReturnInfo {
const REFCOUNT_0 = "0";
const REFCOUNT_1 = "1";
const REFCOUNT_N = "N";
const REFCOUNTS = [
self::REFCOUNT_0,
self::REFCOUNT_1,
self::REFCOUNT_N,
];
public bool $byRef;
public ?Type $type;
public ?Type $phpDocType;
public bool $tentativeReturnType;
public string $refcount;
public function __construct(bool $byRef, ?Type $type, ?Type $phpDocType, bool $tentativeReturnType, ?string $refcount) {
$this->byRef = $byRef;
$this->setTypes($type, $phpDocType, $tentativeReturnType);
$this->setRefcount($refcount);
}
public function equalsApartFromPhpDocAndRefcount(ReturnInfo $other): bool {
return $this->byRef === $other->byRef
&& Type::equals($this->type, $other->type)
&& $this->tentativeReturnType === $other->tentativeReturnType;
}
public function getMethodSynopsisType(): ?Type {
return $this->type ?? $this->phpDocType;
}
private function setTypes(?Type $type, ?Type $phpDocType, bool $tentativeReturnType): void
{
$this->type = $type;
$this->phpDocType = $phpDocType;
$this->tentativeReturnType = $tentativeReturnType;
}
private function setRefcount(?string $refcount): void
{
$type = $this->phpDocType ?? $this->type;
$isScalarType = $type !== null && $type->isScalar();
if ($refcount === null) {
$this->refcount = $isScalarType ? self::REFCOUNT_0 : self::REFCOUNT_N;
return;
}
if (!in_array($refcount, ReturnInfo::REFCOUNTS, true)) {
throw new Exception("@refcount must have one of the following values: \"0\", \"1\", \"N\", $refcount given");
}
if ($isScalarType && $refcount !== self::REFCOUNT_0) {
throw new Exception('A scalar return type of "' . $type->__toString() . '" must have a refcount of "' . self::REFCOUNT_0 . '"');
}
if (!$isScalarType && $refcount === self::REFCOUNT_0) {
throw new Exception('A non-scalar return type of "' . $type->__toString() . '" cannot have a refcount of "' . self::REFCOUNT_0 . '"');
}
$this->refcount = $refcount;
}
}
class FuncInfo {
public FunctionOrMethodName $name;
public int $classFlags;
public int $flags;
public ?string $aliasType;
public ?FunctionOrMethodName $alias;
public bool $isDeprecated;
public bool $supportsCompileTimeEval;
public bool $verify;
/** @var ArgInfo[] */
public array $args;
public ReturnInfo $return;
public int $numRequiredArgs;
public ?string $cond;
public bool $isUndocumentable;
/**
* @param ArgInfo[] $args
*/
public function __construct(
FunctionOrMethodName $name,
int $classFlags,
int $flags,
?string $aliasType,
?FunctionOrMethodName $alias,
bool $isDeprecated,
bool $supportsCompileTimeEval,
bool $verify,
array $args,
ReturnInfo $return,
int $numRequiredArgs,
?string $cond,
bool $isUndocumentable
) {
$this->name = $name;
$this->classFlags = $classFlags;
$this->flags = $flags;
$this->aliasType = $aliasType;
$this->alias = $alias;
$this->isDeprecated = $isDeprecated;
$this->supportsCompileTimeEval = $supportsCompileTimeEval;
$this->verify = $verify;
$this->args = $args;
$this->return = $return;
$this->numRequiredArgs = $numRequiredArgs;
$this->cond = $cond;
$this->isUndocumentable = $isUndocumentable;
}
public function isMethod(): bool
{
return $this->name->isMethod();
}
public function isFinalMethod(): bool
{
return ($this->flags & Class_::MODIFIER_FINAL) || ($this->classFlags & Class_::MODIFIER_FINAL);
}
public function isInstanceMethod(): bool
{
return !($this->flags & Class_::MODIFIER_STATIC) && $this->isMethod() && !$this->name->isConstructor();
}
/** @return string[] */
public function getModifierNames(): array
{
if (!$this->isMethod()) {
return [];
}
$result = [];
if ($this->flags & Class_::MODIFIER_FINAL) {
$result[] = "final";
} elseif ($this->flags & Class_::MODIFIER_ABSTRACT && $this->classFlags & ~Class_::MODIFIER_ABSTRACT) {
$result[] = "abstract";
}
if ($this->flags & Class_::MODIFIER_PROTECTED) {
$result[] = "protected";
} elseif ($this->flags & Class_::MODIFIER_PRIVATE) {
$result[] = "private";
} else {
$result[] = "public";
}
if ($this->flags & Class_::MODIFIER_STATIC) {
$result[] = "static";
}
return $result;
}
public function hasParamWithUnknownDefaultValue(): bool
{
foreach ($this->args as $arg) {
if ($arg->defaultValue && !$arg->hasProperDefaultValue()) {
return true;
}
}
return false;
}
public function equalsApartFromNameAndRefcount(FuncInfo $other): bool {
if (count($this->args) !== count($other->args)) {
return false;
}
for ($i = 0; $i < count($this->args); $i++) {
if (!$this->args[$i]->equals($other->args[$i])) {
return false;
}
}
return $this->return->equalsApartFromPhpDocAndRefcount($other->return)
&& $this->numRequiredArgs === $other->numRequiredArgs
&& $this->cond === $other->cond;
}
public function getArgInfoName(): string {
return $this->name->getArgInfoName();
}
public function getDeclarationKey(): string
{
$name = $this->alias ?? $this->name;
return "$name|$this->cond";
}
public function getDeclaration(): ?string
{
if ($this->flags & Class_::MODIFIER_ABSTRACT) {
return null;
}
$name = $this->alias ?? $this->name;
return $name->getDeclaration();
}
public function getFunctionEntry(): string {
if ($this->name instanceof MethodName) {
if ($this->alias) {
if ($this->alias instanceof MethodName) {
return sprintf(
"\tZEND_MALIAS(%s, %s, %s, %s, %s)\n",
$this->alias->getDeclarationClassName(), $this->name->methodName,
$this->alias->methodName, $this->getArgInfoName(), $this->getFlagsAsArginfoString()
);
} else if ($this->alias instanceof FunctionName) {
return sprintf(
"\tZEND_ME_MAPPING(%s, %s, %s, %s)\n",
$this->name->methodName, $this->alias->getNonNamespacedName(),
$this->getArgInfoName(), $this->getFlagsAsArginfoString()
);
} else {
throw new Error("Cannot happen");
}
} else {
$declarationClassName = $this->name->getDeclarationClassName();
if ($this->flags & Class_::MODIFIER_ABSTRACT) {
return sprintf(
"\tZEND_ABSTRACT_ME_WITH_FLAGS(%s, %s, %s, %s)\n",
$declarationClassName, $this->name->methodName, $this->getArgInfoName(),
$this->getFlagsAsArginfoString()
);
}
return sprintf(
"\tZEND_ME(%s, %s, %s, %s)\n",
$declarationClassName, $this->name->methodName, $this->getArgInfoName(),
$this->getFlagsAsArginfoString()
);
}
} else if ($this->name instanceof FunctionName) {
$namespace = $this->name->getNamespace();
$functionName = $this->name->getFunctionName();
$declarationName = $this->alias ? $this->alias->getNonNamespacedName() : $this->name->getDeclarationName();
if ($namespace) {
// Namespaced functions are always declared as aliases to avoid name conflicts when two functions with
// the same name exist in separate namespaces
$macro = $this->isDeprecated ? 'ZEND_NS_DEP_FALIAS' : 'ZEND_NS_FALIAS';
// Render A\B as "A\\B" in C strings for namespaces
return sprintf(
"\t%s(\"%s\", %s, %s, %s)\n",
$macro, addslashes($namespace), $this->name->getFunctionName(), $declarationName, $this->getArgInfoName()
);
}
if ($this->alias) {
$macro = $this->isDeprecated ? 'ZEND_DEP_FALIAS' : 'ZEND_FALIAS';
return sprintf(
"\t%s(%s, %s, %s)\n",
$macro, $functionName, $declarationName, $this->getArgInfoName()
);
}
switch (true) {
case $this->isDeprecated:
$macro = 'ZEND_DEP_FE';
break;
case $this->supportsCompileTimeEval:
$macro = 'ZEND_SUPPORTS_COMPILE_TIME_EVAL_FE';
break;
default:
$macro = 'ZEND_FE';
}
return sprintf("\t%s(%s, %s)\n", $macro, $functionName, $this->getArgInfoName());
} else {
throw new Error("Cannot happen");
}
}
public function getOptimizerInfo(): ?string {
if ($this->isMethod()) {
return null;
}
if ($this->alias !== null) {
return null;
}
if ($this->return->refcount !== ReturnInfo::REFCOUNT_1 && $this->return->phpDocType === null) {
return null;
}
$type = $this->return->phpDocType ?? $this->return->type;
if ($type === null) {
return null;
}
return "\tF" . $this->return->refcount . '("' . $this->name->__toString() . '", ' . $type->toOptimizerTypeMask() . "),\n";
}
public function discardInfoForOldPhpVersions(): void {
$this->return->type = null;
foreach ($this->args as $arg) {
$arg->type = null;
$arg->defaultValue = null;
$arg->attributes = [];
}
}
private function getFlagsAsArginfoString(): string
{
$flags = "ZEND_ACC_PUBLIC";
if ($this->flags & Class_::MODIFIER_PROTECTED) {
$flags = "ZEND_ACC_PROTECTED";
} elseif ($this->flags & Class_::MODIFIER_PRIVATE) {
$flags = "ZEND_ACC_PRIVATE";
}
if ($this->flags & Class_::MODIFIER_STATIC) {
$flags .= "|ZEND_ACC_STATIC";
}
if ($this->flags & Class_::MODIFIER_FINAL) {
$flags .= "|ZEND_ACC_FINAL";
}
if ($this->flags & Class_::MODIFIER_ABSTRACT) {
$flags .= "|ZEND_ACC_ABSTRACT";
}
if ($this->isDeprecated) {
$flags .= "|ZEND_ACC_DEPRECATED";
}
return $flags;
}
/**
* @param array<string, FuncInfo> $funcMap
* @param array<string, FuncInfo> $aliasMap
* @throws Exception
*/
public function getMethodSynopsisDocument(array $funcMap, array $aliasMap): ?string {
$doc = new DOMDocument();
$doc->formatOutput = true;
$methodSynopsis = $this->getMethodSynopsisElement($funcMap, $aliasMap, $doc);
if (!$methodSynopsis) {
return null;
}
$doc->appendChild($methodSynopsis);
return $doc->saveXML();
}
/**
* @param array<string, FuncInfo> $funcMap
* @param array<string, FuncInfo> $aliasMap
* @throws Exception
*/
public function getMethodSynopsisElement(array $funcMap, array $aliasMap, DOMDocument $doc): ?DOMElement {
if ($this->hasParamWithUnknownDefaultValue()) {
return null;
}
if ($this->name->isConstructor()) {
$synopsisType = "constructorsynopsis";
} elseif ($this->name->isDestructor()) {
$synopsisType = "destructorsynopsis";
} else {
$synopsisType = "methodsynopsis";
}
$methodSynopsis = $doc->createElement($synopsisType);
if ($this->isMethod()) {
assert($this->name instanceof MethodName);
$role = $doc->createAttribute("role");
$role->value = addslashes($this->name->className->__toString());
$methodSynopsis->appendChild($role);
}
$methodSynopsis->appendChild(new DOMText("\n "));
foreach ($this->getModifierNames() as $modifierString) {
$modifierElement = $doc->createElement('modifier', $modifierString);
$methodSynopsis->appendChild($modifierElement);
$methodSynopsis->appendChild(new DOMText(" "));
}
$returnType = $this->return->getMethodSynopsisType();
if ($returnType) {
$methodSynopsis->appendChild($returnType->getTypeForDoc($doc));
}
$methodname = $doc->createElement('methodname', $this->name->__toString());
$methodSynopsis->appendChild($methodname);
if (empty($this->args)) {
$methodSynopsis->appendChild(new DOMText("\n "));
$void = $doc->createElement('void');
$methodSynopsis->appendChild($void);
} else {
foreach ($this->args as $arg) {
$methodSynopsis->appendChild(new DOMText("\n "));
$methodparam = $doc->createElement('methodparam');
if ($arg->defaultValue !== null) {
$methodparam->setAttribute("choice", "opt");
}
if ($arg->isVariadic) {
$methodparam->setAttribute("rep", "repeat");
}
$methodSynopsis->appendChild($methodparam);
$methodparam->appendChild($arg->getMethodSynopsisType()->getTypeForDoc($doc));
$parameter = $doc->createElement('parameter', $arg->name);
if ($arg->sendBy !== ArgInfo::SEND_BY_VAL) {
$parameter->setAttribute("role", "reference");
}
$methodparam->appendChild($parameter);
$defaultValue = $arg->getDefaultValueAsMethodSynopsisString();
if ($defaultValue !== null) {
$initializer = $doc->createElement('initializer');
if (preg_match('/^[a-zA-Z_][a-zA-Z_0-9]*$/', $defaultValue)) {
$constant = $doc->createElement('constant', $defaultValue);
$initializer->appendChild($constant);
} else {
$initializer->nodeValue = $defaultValue;
}
$methodparam->appendChild($initializer);
}
}
}
$methodSynopsis->appendChild(new DOMText("\n "));
return $methodSynopsis;
}
public function __clone()
{
foreach ($this->args as $key => $argInfo) {
$this->args[$key] = clone $argInfo;
}
$this->return = clone $this->return;
}
}
class EvaluatedValue
{
/** @var mixed */
public $value;
public SimpleType $type;
public ?string $cConstValue;
public bool $isUnknownConstValue;
public ?ConstInfo $originatingConst;
/**
* @param iterable<ConstInfo> $allConstInfos
*/
public static function createFromExpression(Expr $expr, ?SimpleType $constType, ?string $cConstName, iterable $allConstInfos): EvaluatedValue
{
$originatingConst = null;
$isUnknownConstValue = null;
$evaluator = new ConstExprEvaluator(
function (Expr $expr) use ($allConstInfos, &$constType, &$originatingConst, &$isUnknownConstValue) {
if (!$expr instanceof Expr\ConstFetch && !$expr instanceof Expr\ClassConstFetch) {
throw new Exception($this->getVariableTypeName() . " " . $this->getVariableLikeName() . " has an unsupported value");
}
if ($expr instanceof Expr\ClassConstFetch) {
$originatingConstName = new ClassConstName($expr->class, $expr->name->toString());
} else {
$originatingConstName = new ConstName($expr->name->getAttribute('namespacedName'), $expr->name->toString());
}
if ($originatingConstName->isUnknown()) {
$originatingConst = null;
$isUnknownConstValue = true;
return null;
}
foreach ($allConstInfos as $const) {
if (!$originatingConstName->equals($const->name)) {
continue;
}
if ($constType === null && $const->phpDocType) {
$constType = $const->phpDocType->tryToSimpleType();
}
$originatingConst = $const;
$isUnknownConstValue = false;
return null;
}
throw new Exception("Constant " . $constName . " cannot be found");
}
);
$result = $evaluator->evaluateDirectly($expr);
return new EvaluatedValue(
$result,
$constType ?: SimpleType::fromValue($result),
$cConstName,
$originatingConst,
(bool) $isUnknownConstValue
);
}
public static function null(): EvaluatedValue
{
return new self(null, SimpleType::null(), null, null, false);
}
/**
* @param mixed $value
*/
private function __construct($value, SimpleType $type, ?string $cConstName, ?ConstInfo $originatingConst, bool $isUnknownConstValue)
{
$this->value = $value;
$this->type = $type;
$this->cConstValue = $cConstName;
$this->originatingConst = $originatingConst;
$this->isUnknownConstValue = $isUnknownConstValue;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
public function initializeZval(string $zvalName, iterable $allConstInfos): string
{
$cConstValue = $this->getCConstValue($allConstInfos);
$code = "\tzval $zvalName;\n";
if ($this->type->isNull()) {
$code .= "\tZVAL_NULL(&$zvalName);\n";
} elseif ($this->type->isBool()) {
$code .= "\t" . ($this->value ? 'ZVAL_TRUE' : 'ZVAL_FALSE') . "(&$zvalName);\n";
} elseif ($this->type->isInt()) {
$code .= "\tZVAL_LONG(&$zvalName, " . ($cConstValue ?: $this->value) . ");\n";
} elseif ($this->type->isFloat()) {
$code .= "\tZVAL_DOUBLE(&$zvalName, " . ($cConstValue ?: $this->value) . ");\n";
} elseif ($this->type->isString()) {
if (!$cConstValue && $this->value === "") {
$code .= "\tZVAL_EMPTY_STRING(&$zvalName);\n";
} else {
$constValue = $cConstValue ?: '"' . addslashes($this->value) . '"';
$code .= "\tzend_string *{$zvalName}_str = zend_string_init($constValue, strlen($constValue), 1);\n";
$code .= "\tZVAL_STR(&$zvalName, {$zvalName}_str);\n";
}
} elseif ($this->type->isArray()) {
if (!$cConstValue && empty($this->value)) {
$code .= "\tZVAL_EMPTY_ARRAY(&$zvalName);\n";
} else {
throw new Exception("Unimplemented default value");
}
} else {
throw new Exception("Invalid default value");
}
return $code;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
public function getCConstValue(iterable $allConstInfos): ?string
{
if ($this->cConstValue) {
return $this->cConstValue;
}
if ($this->originatingConst) {
return $this->originatingConst->getValue($allConstInfos)->getCConstValue($allConstInfos);
}
return null;
}
}
abstract class VariableLike
{
public ?Type $phpDocType;
public int $flags;
public ?string $link;
public ?int $phpVersionIdMinimumCompatibility;
public function __construct(
int $flags,
?Type $phpDocType,
?string $link,
?int $phpVersionIdMinimumCompatibility
) {
$this->flags = $flags;
$this->phpDocType = $phpDocType;
$this->link = $link;
$this->phpVersionIdMinimumCompatibility = $phpVersionIdMinimumCompatibility;
}
abstract protected function getVariableTypeCode(): string;
abstract protected function getVariableTypeName(): string;
abstract protected function getVariableLikeName(): string;
abstract protected function addTypeToFieldSynopsis(DOMDocument $doc, DOMElement $fieldsynopsisElement): void;
abstract protected function getFieldSynopsisDefaultLinkend(): string;
abstract protected function getFieldSynopsisName(): string;
/**
* @param iterable<ConstInfo> $allConstInfos
*/
abstract protected function getFieldSynopsisValueString(iterable $allConstInfos): ?string;
abstract public function discardInfoForOldPhpVersions(): void;
/**
* @return array<int, string[]>
*/
protected function getFlagsByPhpVersion(): array
{
$flags = "ZEND_ACC_PUBLIC";
if ($this->flags & Class_::MODIFIER_PROTECTED) {
$flags = "ZEND_ACC_PROTECTED";
} elseif ($this->flags & Class_::MODIFIER_PRIVATE) {
$flags = "ZEND_ACC_PRIVATE";
}
return [
PHP_70_VERSION_ID => [$flags],
PHP_80_VERSION_ID => [$flags],
PHP_81_VERSION_ID => [$flags],
PHP_82_VERSION_ID => [$flags],
];
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
public function getFieldSynopsisElement(DOMDocument $doc, iterable $allConstInfos): DOMElement
{
$fieldsynopsisElement = $doc->createElement("fieldsynopsis");
$this->addModifiersToFieldSynopsis($doc, $fieldsynopsisElement);
$this->addTypeToFieldSynopsis($doc, $fieldsynopsisElement);
$varnameElement = $doc->createElement("varname", $this->getFieldSynopsisName());
if ($this->link) {
$varnameElement->setAttribute("linkend", $this->link);
} else {
$varnameElement->setAttribute("linkend", $this->getFieldSynopsisDefaultLinkend());
}
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($varnameElement);
$valueString = $this->getFieldSynopsisValueString($allConstInfos);
if ($valueString) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$initializerElement = $doc->createElement("initializer", $valueString);
$fieldsynopsisElement->appendChild($initializerElement);
}
$fieldsynopsisElement->appendChild(new DOMText("\n "));
return $fieldsynopsisElement;
}
protected function addModifiersToFieldSynopsis(DOMDocument $doc, DOMElement $fieldsynopsisElement): void
{
if ($this->flags & Class_::MODIFIER_PUBLIC) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($doc->createElement("modifier", "public"));
} elseif ($this->flags & Class_::MODIFIER_PROTECTED) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($doc->createElement("modifier", "protected"));
} elseif ($this->flags & Class_::MODIFIER_PRIVATE) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($doc->createElement("modifier", "private"));
}
}
/**
* @param array<int, string[]> $flags
* @return array<int, string[]>
*/
protected function addFlagForVersionsAbove(array $flags, string $flag, int $minimumVersionId): array
{
$write = false;
foreach ($flags as $version => $versionFlags) {
if ($version === $minimumVersionId || $write === true) {
$flags[$version][] = $flag;
$write = true;
}
}
return $flags;
}
}
class ConstInfo extends VariableLike
{
public ConstOrClassConstName $name;
public Expr $value;
public bool $isDeprecated;
public ?string $valueString;
public ?string $cond;
public ?string $cValue;
public function __construct(
ConstOrClassConstName $name,
int $flags,
Expr $value,
?string $valueString,
?Type $phpDocType,
bool $isDeprecated,
?string $cond,
?string $cValue,
?string $link,
?int $phpVersionIdMinimumCompatibility
) {
$this->name = $name;
$this->value = $value;
$this->valueString = $valueString;
$this->isDeprecated = $isDeprecated;
$this->cond = $cond;
$this->cValue = $cValue;
parent::__construct($flags, $phpDocType, $link, $phpVersionIdMinimumCompatibility);
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
public function getValue(iterable $allConstInfos): EvaluatedValue
{
return EvaluatedValue::createFromExpression(
$this->value,
$this->phpDocType->tryToSimpleType(),
$this->cValue,
$allConstInfos
);
}
protected function getVariableTypeName(): string
{
return "constant";
}
protected function getVariableLikeName(): string
{
return $this->name->const;
}
protected function getVariableTypeCode(): string
{
return "const";
}
protected function getFieldSynopsisDefaultLinkend(): string
{
$className = str_replace(["\\", "_"], ["-", "-"], $this->name->class->toLowerString());
return "$className.constants." . strtolower(str_replace("_", "-", $this->name->const));
}
protected function getFieldSynopsisName(): string
{
return $this->name->__toString();
}
protected function addTypeToFieldSynopsis(DOMDocument $doc, DOMElement $fieldsynopsisElement): void
{
if ($this->phpDocType) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($this->phpDocType->getTypeForDoc($doc));
}
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
protected function getFieldSynopsisValueString(iterable $allConstInfos): ?string
{
$value = EvaluatedValue::createFromExpression($this->value, null, $this->cValue, $allConstInfos);
if ($value->isUnknownConstValue) {
return null;
}
if ($value->originatingConst) {
return $value->originatingConst->getFieldSynopsisValueString($allConstInfos);
}
return $this->valueString;
}
public function discardInfoForOldPhpVersions(): void {
$this->flags &= ~Class_::MODIFIER_FINAL;
$this->isDeprecated = false;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
public function getDeclaration(iterable $allConstInfos): string
{
$type = $this->phpDocType->tryToSimpleType();
if ($type === null || !$type->isBuiltin) {
throw new Exception("Constant " . $this->name->__toString() . " must have a simple built-in type");
}
$value = EvaluatedValue::createFromExpression($this->value, $type, $this->cValue, $allConstInfos);
if ($value->isUnknownConstValue && !$value->cConstValue) {
throw new Exception("Constant " . $this->name->__toString() . " must have a @cvalue annotation");
}
$code = "";
if ($this->cond) {
$code .= "#if {$this->cond}\n";
}
if ($this->name->isClassConst()) {
$code .= $this->getClassConstDeclaration($value, $allConstInfos);
} else {
$code .= $this->getGlobalConstDeclaration($value, $allConstInfos);
}
$code .= $this->getValueAssertion($value);
if ($this->cond) {
$code .= "#endif\n";
}
return $code;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
private function getGlobalConstDeclaration(EvaluatedValue $value, iterable $allConstInfos): string
{
$constName = str_replace('\\', '\\\\', $this->name->__toString());
$constValue = $value->value;
$cConstValue = $value->getCConstValue($allConstInfos);
$flags = "CONST_PERSISTENT";
if ($this->phpVersionIdMinimumCompatibility !== null && $this->phpVersionIdMinimumCompatibility < 80000) {
$flags .= " | CONST_CS";
}
if ($this->isDeprecated) {
$flags .= " | CONST_DEPRECATED";
}
if ($value->type->isNull()) {
return "\tREGISTER_NULL_CONSTANT(\"$constName\", $flags);\n";
}
if ($value->type->isBool()) {
return "\tREGISTER_BOOL_CONSTANT(\"$constName\", " . ($cConstValue ?: ($constValue ? "true" : "false")) . ", $flags);\n";
}
if ($value->type->isInt()) {
return "\tREGISTER_LONG_CONSTANT(\"$constName\", " . ($cConstValue ?: (int) $constValue) . ", $flags);\n";
}
if ($value->type->isFloat()) {
return "\tREGISTER_DOUBLE_CONSTANT(\"$constName\", " . ($cConstValue ?: (float) $constValue) . ", $flags);\n";
}
if ($value->type->isString()) {
return "\tREGISTER_STRING_CONSTANT(\"$constName\", " . ($cConstValue ?: '"' . addslashes($constValue) . '"') . ", $flags);\n";
}
throw new Exception("Unimplemented constant type");}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
private function getClassConstDeclaration(EvaluatedValue $value, iterable $allConstInfos): string
{
$constName = $this->getVariableLikeName();
$zvalCode = $value->initializeZval("const_{$constName}_value", $allConstInfos);
$code = "\n" . $zvalCode;
$code .= "\tzend_string *const_{$constName}_name = zend_string_init_interned(\"$constName\", sizeof(\"$constName\") - 1, 1);\n";
$nameCode = "const_{$constName}_name";
$template = "\tzend_declare_class_constant_ex(class_entry, $nameCode, &const_{$constName}_value, %s, NULL);\n";
$flagsCode = generateVersionDependentFlagCode(
$template,
$this->getFlagsByPhpVersion(),
$this->phpVersionIdMinimumCompatibility
);
$code .= implode("", $flagsCode);
$code .= "\tzend_string_release(const_{$constName}_name);\n";
return $code;
}
private function getValueAssertion(EvaluatedValue $value): string
{
if ($value->isUnknownConstValue || $value->originatingConst || $value->cConstValue === null) {
return "";
}
$cConstValue = $value->cConstValue;
$constValue = $value->value;
if ($value->type->isNull()) {
return "\tZEND_ASSERT($cConstValue == NULL);\n";
}
if ($value->type->isBool()) {
$cValue = $constValue ? "true" : "false";
return "\tZEND_ASSERT($cConstValue == $cValue);\n";
}
if ($value->type->isInt()) {
$cValue = (int) $constValue;
return "\tZEND_ASSERT($cConstValue == $cValue);\n";
}
if ($value->type->isFloat()) {
$cValue = (float) $constValue;
return "\tZEND_ASSERT($cConstValue == $cValue);\n";
}
if ($value->type->isString()) {
$cValue = '"' . addslashes($constValue) . '"';
return "\tZEND_ASSERT(strcmp($cConstValue, $cValue) == 0);\n";
}
throw new Exception("Unimplemented constant type");
}
/**
* @return array<int, string[]>
*/
protected function getFlagsByPhpVersion(): array
{
$flags = parent::getFlagsByPhpVersion();
if ($this->isDeprecated) {
$flags = $this->addFlagForVersionsAbove($flags, "ZEND_ACC_DEPRECATED", PHP_80_VERSION_ID);
}
if ($this->flags & Class_::MODIFIER_FINAL) {
$flags = $this->addFlagForVersionsAbove($flags, "ZEND_ACC_FINAL", PHP_81_VERSION_ID);
}
return $flags;
}
protected function addModifiersToFieldSynopsis(DOMDocument $doc, DOMElement $fieldsynopsisElement): void
{
parent::addModifiersToFieldSynopsis($doc, $fieldsynopsisElement);
if ($this->flags & Class_::MODIFIER_FINAL) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($doc->createElement("modifier", "final"));
}
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($doc->createElement("modifier", "const"));
}
}
class PropertyInfo extends VariableLike
{
public PropertyName $name;
public ?Type $type;
public ?Expr $defaultValue;
public ?string $defaultValueString;
public bool $isDocReadonly;
public function __construct(
PropertyName $name,
int $flags,
?Type $type,
?Type $phpDocType,
?Expr $defaultValue,
?string $defaultValueString,
bool $isDocReadonly,
?string $link,
?int $phpVersionIdMinimumCompatibility
) {
$this->name = $name;
$this->type = $type;
$this->defaultValue = $defaultValue;
$this->defaultValueString = $defaultValueString;
$this->isDocReadonly = $isDocReadonly;
parent::__construct($flags, $phpDocType, $link, $phpVersionIdMinimumCompatibility);
}
protected function getVariableTypeCode(): string
{
return "property";
}
protected function getVariableTypeName(): string
{
return "property";
}
protected function getVariableLikeName(): string
{
return $this->name->property;
}
protected function getFieldSynopsisDefaultLinkend(): string
{
$className = str_replace(["\\", "_"], ["-", "-"], $this->name->class->toLowerString());
return "$className.props." . strtolower(str_replace("_", "-", $this->name->property));
}
protected function getFieldSynopsisName(): string
{
return $this->name->property;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
protected function getFieldSynopsisValueString(iterable $allConstInfos): ?string
{
return $this->defaultValueString;
}
public function discardInfoForOldPhpVersions(): void {
$this->type = null;
$this->flags &= ~Class_::MODIFIER_READONLY;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
public function getDeclaration(iterable $allConstInfos): string {
$code = "\n";
$propertyName = $this->name->property;
if ($this->defaultValue === null) {
$defaultValue = EvaluatedValue::null();
} else {
$defaultValue = EvaluatedValue::createFromExpression($this->defaultValue, null, null, $allConstInfos);
if ($defaultValue->isUnknownConstValue || ($defaultValue->originatingConst && $defaultValue->getCConstValue($allConstInfos) === null)) {
echo "Skipping code generation for property $this->name, because it has an unknown constant default value\n";
return "";
}
}
$typeCode = "";
if ($this->type) {
$arginfoType = $this->type->toArginfoType();
if ($arginfoType->hasClassType()) {
if (count($arginfoType->classTypes) >= 2) {
foreach ($arginfoType->classTypes as $classType) {
$escapedClassName = $classType->toEscapedName();
$varEscapedClassName = $classType->toVarEscapedName();
$code .= "\tzend_string *property_{$propertyName}_class_{$varEscapedClassName} = zend_string_init(\"{$escapedClassName}\", sizeof(\"{$escapedClassName}\") - 1, 1);\n";
}
$classTypeCount = count($arginfoType->classTypes);
$code .= "\tzend_type_list *property_{$propertyName}_type_list = malloc(ZEND_TYPE_LIST_SIZE($classTypeCount));\n";
$code .= "\tproperty_{$propertyName}_type_list->num_types = $classTypeCount;\n";
foreach ($arginfoType->classTypes as $k => $classType) {
$escapedClassName = $classType->toEscapedName();
$code .= "\tproperty_{$propertyName}_type_list->types[$k] = (zend_type) ZEND_TYPE_INIT_CLASS(property_{$propertyName}_class_{$escapedClassName}, 0, 0);\n";
}
$typeMaskCode = $this->type->toArginfoType()->toTypeMask();
if ($this->type->isIntersection) {
$code .= "\tzend_type property_{$propertyName}_type = ZEND_TYPE_INIT_INTERSECTION(property_{$propertyName}_type_list, $typeMaskCode);\n";
} else {
$code .= "\tzend_type property_{$propertyName}_type = ZEND_TYPE_INIT_UNION(property_{$propertyName}_type_list, $typeMaskCode);\n";
}
$typeCode = "property_{$propertyName}_type";
} else {
$escapedClassName = $arginfoType->classTypes[0]->toEscapedName();
$varEscapedClassName = $arginfoType->classTypes[0]->toVarEscapedName();
$code .= "\tzend_string *property_{$propertyName}_class_{$varEscapedClassName} = zend_string_init(\"{$escapedClassName}\", sizeof(\"{$escapedClassName}\")-1, 1);\n";
$typeCode = "(zend_type) ZEND_TYPE_INIT_CLASS(property_{$propertyName}_class_{$varEscapedClassName}, 0, " . $arginfoType->toTypeMask() . ")";
}
} else {
$typeCode = "(zend_type) ZEND_TYPE_INIT_MASK(" . $arginfoType->toTypeMask() . ")";
}
}
$zvalName = "property_{$this->name->property}_default_value";
if ($this->defaultValue === null && $this->type !== null) {
$code .= "\tzval $zvalName;\n\tZVAL_UNDEF(&$zvalName);\n";
} else {
$code .= $defaultValue->initializeZval($zvalName, $allConstInfos);
}
$code .= "\tzend_string *property_{$propertyName}_name = zend_string_init(\"$propertyName\", sizeof(\"$propertyName\") - 1, 1);\n";
$nameCode = "property_{$propertyName}_name";
if ($this->type !== null) {
$template = "\tzend_declare_typed_property(class_entry, $nameCode, &$zvalName, %s, NULL, $typeCode);\n";
} else {
$template = "\tzend_declare_property_ex(class_entry, $nameCode, &$zvalName, %s, NULL);\n";
}
$flagsCode = generateVersionDependentFlagCode(
$template,
$this->getFlagsByPhpVersion(),
$this->phpVersionIdMinimumCompatibility
);
$code .= implode("", $flagsCode);
$code .= "\tzend_string_release(property_{$propertyName}_name);\n";
return $code;
}
/**
* @return array<int, string[]>
*/
protected function getFlagsByPhpVersion(): array
{
$flags = parent::getFlagsByPhpVersion();
if ($this->flags & Class_::MODIFIER_STATIC) {
$flags = $this->addFlagForVersionsAbove($flags, "ZEND_ACC_STATIC", PHP_70_VERSION_ID);
}
if ($this->flags & Class_::MODIFIER_READONLY) {
$flags = $this->addFlagForVersionsAbove($flags, "ZEND_ACC_READONLY", PHP_81_VERSION_ID);
}
return $flags;
}
protected function addModifiersToFieldSynopsis(DOMDocument $doc, DOMElement $fieldsynopsisElement): void
{
parent::addModifiersToFieldSynopsis($doc, $fieldsynopsisElement);
if ($this->flags & Class_::MODIFIER_STATIC) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($doc->createElement("modifier", "static"));
}
if ($this->flags & Class_::MODIFIER_READONLY || $this->isDocReadonly) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($doc->createElement("modifier", "readonly"));
}
}
protected function addTypeToFieldSynopsis(DOMDocument $doc, DOMElement $fieldsynopsisElement): void
{
$type = $this->phpDocType ?? $this->type;
if ($type) {
$fieldsynopsisElement->appendChild(new DOMText("\n "));
$fieldsynopsisElement->appendChild($type->getTypeForDoc($doc));
}
}
public function __clone()
{
if ($this->type) {
$this->type = clone $this->type;
}
}
}
class EnumCaseInfo {
public string $name;
public ?Expr $value;
public function __construct(string $name, ?Expr $value) {
$this->name = $name;
$this->value = $value;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
public function getDeclaration(iterable $allConstInfos): string {
$escapedName = addslashes($this->name);
if ($this->value === null) {
$code = "\n\tzend_enum_add_case_cstr(class_entry, \"$escapedName\", NULL);\n";
} else {
$value = EvaluatedValue::createFromExpression($this->value, null, null, $allConstInfos);
$zvalName = "enum_case_{$escapedName}_value";
$code = "\n" . $value->initializeZval($zvalName, $allConstInfos);
$code .= "\tzend_enum_add_case_cstr(class_entry, \"$escapedName\", &$zvalName);\n";
}
return $code;
}
}
class AttributeInfo {
public string $class;
/** @var \PhpParser\Node\Arg[] */
public array $args;
/** @param \PhpParser\Node\Arg[] $args */
public function __construct(string $class, array $args) {
$this->class = $class;
$this->args = $args;
}
/** @param iterable<ConstInfo> $allConstInfos */
public function generateCode(string $invocation, string $nameSuffix, iterable $allConstInfos): string {
/* see ZEND_KNOWN_STRINGS in Zend/strings.h */
static $knowns = [
"SensitiveParameter" => "ZEND_STR_SENSITIVEPARAMETER",
];
$code = "\n";
$escapedAttributeName = strtr($this->class, '\\', '_');
if (isset($knowns[$escapedAttributeName])) {
$code .= "\t" . ($this->args ? "zend_attribute *attribute_{$escapedAttributeName}_$nameSuffix = " : "") . "$invocation, ZSTR_KNOWN({$knowns[$escapedAttributeName]}), " . count($this->args) . ");\n";
} else {
$code .= "\tzend_string *attribute_name_{$escapedAttributeName}_$nameSuffix = zend_string_init_interned(\"" . addcslashes($this->class, "\\") . "\", sizeof(\"" . addcslashes($this->class, "\\") . "\") - 1, 1);\n";
$code .= "\t" . ($this->args ? "zend_attribute *attribute_{$escapedAttributeName}_$nameSuffix = " : "") . "$invocation, attribute_name_{$escapedAttributeName}_$nameSuffix, " . count($this->args) . ");\n";
$code .= "\tzend_string_release(attribute_name_{$escapedAttributeName}_$nameSuffix);\n";
}
foreach ($this->args as $i => $arg) {
$value = EvaluatedValue::createFromExpression($arg->value, null, null, $allConstInfos);
$zvalName = "attribute_{$escapedAttributeName}_{$nameSuffix}_arg$i";
$code .= $value->initializeZval($zvalName, $allConstInfos);
$code .= "\tZVAL_COPY_VALUE(&attribute_{$escapedAttributeName}_{$nameSuffix}->args[$i].value, &$zvalName);\n";
if ($arg->name) {
$code .= "\tattribute_{$escapedAttributeName}_{$nameSuffix}->args[$i].name = zend_string_init(\"{$arg->name->name}\", sizeof(\"{$arg->name->name}\") - 1, 1);\n";
}
}
return $code;
}
}
class ClassInfo {
public Name $name;
public int $flags;
public string $type;
public ?string $alias;
public ?SimpleType $enumBackingType;
public bool $isDeprecated;
public bool $isStrictProperties;
/** @var AttributeInfo[] */
public array $attributes;
public bool $isNotSerializable;
/** @var Name[] */
public array $extends;
/** @var Name[] */
public array $implements;
/** @var ConstInfo[] */
public array $constInfos;
/** @var PropertyInfo[] */
public array $propertyInfos;
/** @var FuncInfo[] */
public array $funcInfos;
/** @var EnumCaseInfo[] */
public array $enumCaseInfos;
public ?string $cond;
public ?int $phpVersionIdMinimumCompatibility;
public bool $isUndocumentable;
/**
* @param AttributeInfo[] $attributes
* @param Name[] $extends
* @param Name[] $implements
* @param ConstInfo[] $constInfos
* @param PropertyInfo[] $propertyInfos
* @param FuncInfo[] $funcInfos
* @param EnumCaseInfo[] $enumCaseInfos
*/
public function __construct(
Name $name,
int $flags,
string $type,
?string $alias,
?SimpleType $enumBackingType,
bool $isDeprecated,
bool $isStrictProperties,
array $attributes,
bool $isNotSerializable,
array $extends,
array $implements,
array $constInfos,
array $propertyInfos,
array $funcInfos,
array $enumCaseInfos,
?string $cond,
?int $minimumPhpVersionIdCompatibility,
bool $isUndocumentable
) {
$this->name = $name;
$this->flags = $flags;
$this->type = $type;
$this->alias = $alias;
$this->enumBackingType = $enumBackingType;
$this->isDeprecated = $isDeprecated;
$this->isStrictProperties = $isStrictProperties;
$this->attributes = $attributes;
$this->isNotSerializable = $isNotSerializable;
$this->extends = $extends;
$this->implements = $implements;
$this->constInfos = $constInfos;
$this->propertyInfos = $propertyInfos;
$this->funcInfos = $funcInfos;
$this->enumCaseInfos = $enumCaseInfos;
$this->cond = $cond;
$this->phpVersionIdMinimumCompatibility = $minimumPhpVersionIdCompatibility;
$this->isUndocumentable = $isUndocumentable;
}
/**
* @param ConstInfo[] $allConstInfos
*/
public function getRegistration(iterable $allConstInfos): string
{
$params = [];
foreach ($this->extends as $extends) {
$params[] = "zend_class_entry *class_entry_" . implode("_", $extends->parts);
}
foreach ($this->implements as $implements) {
$params[] = "zend_class_entry *class_entry_" . implode("_", $implements->parts);
}
$escapedName = implode("_", $this->name->parts);
$code = '';
$php81MinimumCompatibility = $this->phpVersionIdMinimumCompatibility === null || $this->phpVersionIdMinimumCompatibility >= PHP_81_VERSION_ID;
$php82MinimumCompatibility = $this->phpVersionIdMinimumCompatibility === null || $this->phpVersionIdMinimumCompatibility >= PHP_82_VERSION_ID;
if ($this->type === "enum" && !$php81MinimumCompatibility) {
$code .= "#if (PHP_VERSION_ID >= " . PHP_81_VERSION_ID . ")\n";
}
if ($this->cond) {
$code .= "#if {$this->cond}\n";
}
$code .= "static zend_class_entry *register_class_$escapedName(" . (empty($params) ? "void" : implode(", ", $params)) . ")\n";
$code .= "{\n";
if ($this->type === "enum") {
$name = addslashes((string) $this->name);
$backingType = $this->enumBackingType
? $this->enumBackingType->toTypeCode() : "IS_UNDEF";
$code .= "\tzend_class_entry *class_entry = zend_register_internal_enum(\"$name\", $backingType, class_{$escapedName}_methods);\n";
} else {
$code .= "\tzend_class_entry ce, *class_entry;\n\n";
if (count($this->name->parts) > 1) {
$className = $this->name->getLast();
$namespace = addslashes((string) $this->name->slice(0, -1));
$code .= "\tINIT_NS_CLASS_ENTRY(ce, \"$namespace\", \"$className\", class_{$escapedName}_methods);\n";
} else {
$code .= "\tINIT_CLASS_ENTRY(ce, \"$this->name\", class_{$escapedName}_methods);\n";
}
if ($this->type === "class" || $this->type === "trait") {
$code .= "\tclass_entry = zend_register_internal_class_ex(&ce, " . (isset($this->extends[0]) ? "class_entry_" . str_replace("\\", "_", $this->extends[0]->toString()) : "NULL") . ");\n";
} else {
$code .= "\tclass_entry = zend_register_internal_interface(&ce);\n";
}
}
$flagCodes = generateVersionDependentFlagCode("\tclass_entry->ce_flags |= %s;\n", $this->getFlagsByPhpVersion(), $this->phpVersionIdMinimumCompatibility);
$code .= implode("", $flagCodes);
$implements = array_map(
function (Name $item) {
return "class_entry_" . implode("_", $item->parts);
},
$this->type === "interface" ? $this->extends : $this->implements
);
if (!empty($implements)) {
$code .= "\tzend_class_implements(class_entry, " . count($implements) . ", " . implode(", ", $implements) . ");\n";
}
if ($this->alias) {
$code .= "\tzend_register_class_alias(\"" . str_replace("\\", "\\\\", $this->alias) . "\", class_entry);\n";
}
foreach ($this->constInfos as $const) {
$code .= $const->getDeclaration($allConstInfos);
}
foreach ($this->enumCaseInfos as $enumCase) {
$code .= $enumCase->getDeclaration($allConstInfos);
}
foreach ($this->propertyInfos as $property) {
$code .= $property->getDeclaration($allConstInfos);
}
if (!empty($this->attributes)) {
if (!$php82MinimumCompatibility) {
$code .= "\n#if (PHP_VERSION_ID >= " . PHP_82_VERSION_ID . ")";
}
foreach ($this->attributes as $attribute) {
$code .= $attribute->generateCode("zend_add_class_attribute(class_entry", "class_$escapedName", $allConstInfos);
}
if (!$php82MinimumCompatibility) {
$code .= "#endif\n";
}
}
if ($attributeInitializationCode = generateAttributeInitialization($this->funcInfos, $allConstInfos, $this->cond)) {
if (!$php82MinimumCompatibility) {
$code .= "#if (PHP_VERSION_ID >= " . PHP_82_VERSION_ID . ")\n";
}
$code .= "\n" . $attributeInitializationCode;
if (!$php82MinimumCompatibility) {
$code .= "#endif\n";
}
}
$code .= "\n\treturn class_entry;\n";
$code .= "}\n";
if ($this->cond) {
$code .= "#endif\n";
}
if ($this->type === "enum" && !$php81MinimumCompatibility) {
$code .= "#endif\n";
}
return $code;
}
/**
* @return array<int, string[]>
*/
private function getFlagsByPhpVersion(): array
{
$php70Flags = [];
if ($this->type === "trait") {
$php70Flags[] = "ZEND_ACC_TRAIT";
}
if ($this->flags & Class_::MODIFIER_FINAL) {
$php70Flags[] = "ZEND_ACC_FINAL";
}
if ($this->flags & Class_::MODIFIER_ABSTRACT) {
$php70Flags[] = "ZEND_ACC_ABSTRACT";
}
if ($this->isDeprecated) {
$php70Flags[] = "ZEND_ACC_DEPRECATED";
}
$php80Flags = $php70Flags;
if ($this->isStrictProperties) {
$php80Flags[] = "ZEND_ACC_NO_DYNAMIC_PROPERTIES";
}
$php81Flags = $php80Flags;
if ($this->isNotSerializable) {
$php81Flags[] = "ZEND_ACC_NOT_SERIALIZABLE";
}
$php82Flags = $php81Flags;
if ($this->flags & Class_::MODIFIER_READONLY) {
$php82Flags[] = "ZEND_ACC_READONLY_CLASS";
}
foreach ($this->attributes as $attr) {
if ($attr->class === "AllowDynamicProperties") {
$php82Flags[] = "ZEND_ACC_ALLOW_DYNAMIC_PROPERTIES";
break;
}
}
return [
PHP_70_VERSION_ID => $php70Flags,
PHP_80_VERSION_ID => $php80Flags,
PHP_81_VERSION_ID => $php81Flags,
PHP_82_VERSION_ID => $php82Flags,
];
}
/**
* @param array<string, ClassInfo> $classMap
* @param iterable<ConstInfo> $allConstInfos
* @param iterable<ConstInfo> $allConstInfo
*/
public function getClassSynopsisDocument(array $classMap, iterable $allConstInfos): ?string {
$doc = new DOMDocument();
$doc->formatOutput = true;
$classSynopsis = $this->getClassSynopsisElement($doc, $classMap, $allConstInfos);
if (!$classSynopsis) {
return null;
}
$doc->appendChild($classSynopsis);
return $doc->saveXML();
}
/**
* @param array<string, ClassInfo> $classMap
* @param iterable<ConstInfo> $allConstInfos
*/
public function getClassSynopsisElement(DOMDocument $doc, array $classMap, iterable $allConstInfos): ?DOMElement {
$classSynopsis = $doc->createElement("classsynopsis");
$classSynopsis->appendChild(new DOMText("\n "));
$ooElement = self::createOoElement($doc, $this, true, false, false, 4);
if (!$ooElement) {
return null;
}
$classSynopsis->appendChild($ooElement);
$classSynopsis->appendChild(new DOMText("\n\n "));
$classSynopsisInfo = $doc->createElement("classsynopsisinfo");
$classSynopsisInfo->appendChild(new DOMText("\n "));
$ooElement = self::createOoElement($doc, $this, false, true, false, 5);
if (!$ooElement) {
return null;
}
$classSynopsisInfo->appendChild($ooElement);
$classSynopsis->appendChild($classSynopsisInfo);
foreach ($this->extends as $k => $parent) {
$parentInfo = $classMap[$parent->toString()] ?? null;
if ($parentInfo === null) {
throw new Exception("Missing parent class " . $parent->toString());
}
$ooElement = self::createOoElement(
$doc,
$parentInfo,
$this->type === "interface",
false,
$k === 0,
5
);
if (!$ooElement) {
return null;
}
$classSynopsisInfo->appendChild(new DOMText("\n\n "));
$classSynopsisInfo->appendChild($ooElement);
}
foreach ($this->implements as $interface) {
$interfaceInfo = $classMap[$interface->toString()] ?? null;
if (!$interfaceInfo) {
throw new Exception("Missing implemented interface " . $interface->toString());
}
$ooElement = self::createOoElement($doc, $interfaceInfo, false, false, false, 5);
if (!$ooElement) {
return null;
}
$classSynopsisInfo->appendChild(new DOMText("\n\n "));
$classSynopsisInfo->appendChild($ooElement);
}
$classSynopsisInfo->appendChild(new DOMText("\n "));
/** @var array<string, Name> $parentsWithInheritedConstants */
$parentsWithInheritedConstants = [];
/** @var array<string, Name> $parentsWithInheritedProperties */
$parentsWithInheritedProperties = [];
/** @var array<int, array{name: Name, types: int[]}> $parentsWithInheritedMethods */
$parentsWithInheritedMethods = [];
$this->collectInheritedMembers(
$parentsWithInheritedConstants,
$parentsWithInheritedProperties,
$parentsWithInheritedMethods,
$this->hasConstructor(),
$classMap
);
$this->appendInheritedMemberSectionToClassSynopsis(
$doc,
$classSynopsis,
$parentsWithInheritedConstants,
"&Constants;",
"&InheritedConstants;"
);
if (!empty($this->constInfos)) {
$classSynopsis->appendChild(new DOMText("\n\n "));
$classSynopsisInfo = $doc->createElement("classsynopsisinfo", "&Constants;");
$classSynopsisInfo->setAttribute("role", "comment");
$classSynopsis->appendChild($classSynopsisInfo);
foreach ($this->constInfos as $constInfo) {
$classSynopsis->appendChild(new DOMText("\n "));
$fieldSynopsisElement = $constInfo->getFieldSynopsisElement($doc, $allConstInfos);
$classSynopsis->appendChild($fieldSynopsisElement);
}
}
if (!empty($this->propertyInfos)) {
$classSynopsis->appendChild(new DOMText("\n\n "));
$classSynopsisInfo = $doc->createElement("classsynopsisinfo", "&Properties;");
$classSynopsisInfo->setAttribute("role", "comment");
$classSynopsis->appendChild($classSynopsisInfo);
foreach ($this->propertyInfos as $propertyInfo) {
$classSynopsis->appendChild(new DOMText("\n "));
$fieldSynopsisElement = $propertyInfo->getFieldSynopsisElement($doc, $allConstInfos);
$classSynopsis->appendChild($fieldSynopsisElement);
}
}
$this->appendInheritedMemberSectionToClassSynopsis(
$doc,
$classSynopsis,
$parentsWithInheritedProperties,
"&Properties;",
"&InheritedProperties;"
);
if (!empty($this->funcInfos)) {
$classSynopsis->appendChild(new DOMText("\n\n "));
$classSynopsisInfo = $doc->createElement("classsynopsisinfo", "&Methods;");
$classSynopsisInfo->setAttribute("role", "comment");
$classSynopsis->appendChild($classSynopsisInfo);
$classReference = self::getClassSynopsisReference($this->name);
$escapedName = addslashes($this->name->__toString());
if ($this->hasConstructor()) {
$classSynopsis->appendChild(new DOMText("\n "));
$includeElement = $this->createIncludeElement(
$doc,
"xmlns(db=http://docbook.org/ns/docbook) xpointer(id('$classReference')/db:refentry/db:refsect1[@role='description']/descendant::db:constructorsynopsis[@role='$escapedName'])"
);
$classSynopsis->appendChild($includeElement);
}
if ($this->hasMethods()) {
$classSynopsis->appendChild(new DOMText("\n "));
$includeElement = $this->createIncludeElement(
$doc,
"xmlns(db=http://docbook.org/ns/docbook) xpointer(id('$classReference')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[@role='$escapedName'])"
);
$classSynopsis->appendChild($includeElement);
}
if ($this->hasDestructor()) {
$classSynopsis->appendChild(new DOMText("\n "));
$includeElement = $this->createIncludeElement(
$doc,
"xmlns(db=http://docbook.org/ns/docbook) xpointer(id('$classReference')/db:refentry/db:refsect1[@role='description']/descendant::db:destructorsynopsis[@role='$escapedName'])"
);
$classSynopsis->appendChild($includeElement);
}
}
if (!empty($parentsWithInheritedMethods)) {
$classSynopsis->appendChild(new DOMText("\n\n "));
$classSynopsisInfo = $doc->createElement("classsynopsisinfo", "&InheritedMethods;");
$classSynopsisInfo->setAttribute("role", "comment");
$classSynopsis->appendChild($classSynopsisInfo);
foreach ($parentsWithInheritedMethods as $parent) {
$parentName = $parent["name"];
$parentMethodsynopsisTypes = $parent["types"];
$parentReference = self::getClassSynopsisReference($parentName);
$escapedParentName = addslashes($parentName->__toString());
foreach ($parentMethodsynopsisTypes as $parentMethodsynopsisType) {
$classSynopsis->appendChild(new DOMText("\n "));
$includeElement = $this->createIncludeElement(
$doc,
"xmlns(db=http://docbook.org/ns/docbook) xpointer(id('$parentReference')/db:refentry/db:refsect1[@role='description']/descendant::db:{$parentMethodsynopsisType}[@role='$escapedParentName'])"
);
$classSynopsis->appendChild($includeElement);
}
}
}
$classSynopsis->appendChild(new DOMText("\n "));
return $classSynopsis;
}
private static function createOoElement(
DOMDocument $doc,
ClassInfo $classInfo,
bool $overrideToClass,
bool $withModifiers,
bool $isExtends,
int $indentationLevel
): ?DOMElement {
$indentation = str_repeat(" ", $indentationLevel);
if ($classInfo->type !== "class" && $classInfo->type !== "interface") {
echo "Class synopsis generation is not implemented for " . $classInfo->type . "\n";
return null;
}
$type = $overrideToClass ? "class" : $classInfo->type;
$ooElement = $doc->createElement("oo$type");
$ooElement->appendChild(new DOMText("\n$indentation "));
if ($isExtends) {
$ooElement->appendChild($doc->createElement('modifier', 'extends'));
$ooElement->appendChild(new DOMText("\n$indentation "));
} elseif ($withModifiers) {
if ($classInfo->flags & Class_::MODIFIER_FINAL) {
$ooElement->appendChild($doc->createElement('modifier', 'final'));
$ooElement->appendChild(new DOMText("\n$indentation "));
}
if ($classInfo->flags & Class_::MODIFIER_ABSTRACT) {
$ooElement->appendChild($doc->createElement('modifier', 'abstract'));
$ooElement->appendChild(new DOMText("\n$indentation "));
}
}
$nameElement = $doc->createElement("{$type}name", $classInfo->name->toString());
$ooElement->appendChild($nameElement);
$ooElement->appendChild(new DOMText("\n$indentation"));
return $ooElement;
}
public static function getClassSynopsisFilename(Name $name): string {
return strtolower(str_replace("_", "-", implode('-', $name->parts)));
}
public static function getClassSynopsisReference(Name $name): string {
return "class." . self::getClassSynopsisFilename($name);
}
/**
* @param array<string, Name> $parentsWithInheritedConstants
* @param array<string, Name> $parentsWithInheritedProperties
* @param array<string, array{name: Name, types: int[]}> $parentsWithInheritedMethods
* @param array<string, ClassInfo> $classMap
*/
private function collectInheritedMembers(
array &$parentsWithInheritedConstants,
array &$parentsWithInheritedProperties,
array &$parentsWithInheritedMethods,
bool $hasConstructor,
array $classMap
): void {
foreach ($this->extends as $parent) {
$parentInfo = $classMap[$parent->toString()] ?? null;
$parentName = $parent->toString();
if (!$parentInfo) {
throw new Exception("Missing parent class $parentName");
}
if (!empty($parentInfo->constInfos) && !isset($parentsWithInheritedConstants[$parentName])) {
$parentsWithInheritedConstants[] = $parent;
}
if (!empty($parentInfo->propertyInfos) && !isset($parentsWithInheritedProperties[$parentName])) {
$parentsWithInheritedProperties[$parentName] = $parent;
}
if (!$hasConstructor && $parentInfo->hasNonPrivateConstructor()) {
$parentsWithInheritedMethods[$parentName]["name"] = $parent;
$parentsWithInheritedMethods[$parentName]["types"][] = "constructorsynopsis";
}
if ($parentInfo->hasMethods()) {
$parentsWithInheritedMethods[$parentName]["name"] = $parent;
$parentsWithInheritedMethods[$parentName]["types"][] = "methodsynopsis";
}
if ($parentInfo->hasDestructor()) {
$parentsWithInheritedMethods[$parentName]["name"] = $parent;
$parentsWithInheritedMethods[$parentName]["types"][] = "destructorsynopsis";
}
$parentInfo->collectInheritedMembers(
$parentsWithInheritedConstants,
$parentsWithInheritedProperties,
$parentsWithInheritedMethods,
$hasConstructor,
$classMap
);
}
foreach ($this->implements as $parent) {
$parentInfo = $classMap[$parent->toString()] ?? null;
if (!$parentInfo) {
throw new Exception("Missing parent interface " . $parent->toString());
}
if (!empty($parentInfo->constInfos) && !isset($parentsWithInheritedConstants[$parent->toString()])) {
$parentsWithInheritedConstants[$parent->toString()] = $parent;
}
$unusedParentsWithInheritedProperties = [];
$unusedParentsWithInheritedMethods = [];
$parentInfo->collectInheritedMembers(
$parentsWithInheritedConstants,
$unusedParentsWithInheritedProperties,
$unusedParentsWithInheritedMethods,
$hasConstructor,
$classMap
);
}
}
private function hasConstructor(): bool
{
foreach ($this->funcInfos as $funcInfo) {
if ($funcInfo->name->isConstructor()) {
return true;
}
}
return false;
}
private function hasNonPrivateConstructor(): bool
{
foreach ($this->funcInfos as $funcInfo) {
if ($funcInfo->name->isConstructor() && !($funcInfo->flags & Class_::MODIFIER_PRIVATE)) {
return true;
}
}
return false;
}
private function hasDestructor(): bool
{
foreach ($this->funcInfos as $funcInfo) {
if ($funcInfo->name->isDestructor()) {
return true;
}
}
return false;
}
private function hasMethods(): bool
{
foreach ($this->funcInfos as $funcInfo) {
if (!$funcInfo->name->isConstructor() && !$funcInfo->name->isDestructor()) {
return true;
}
}
return false;
}
private function createIncludeElement(DOMDocument $doc, string $query): DOMElement
{
$includeElement = $doc->createElement("xi:include");
$attr = $doc->createAttribute("xpointer");
$attr->value = $query;
$includeElement->appendChild($attr);
$fallbackElement = $doc->createElement("xi:fallback");
$includeElement->appendChild(new DOMText("\n "));
$includeElement->appendChild($fallbackElement);
$includeElement->appendChild(new DOMText("\n "));
return $includeElement;
}
public function __clone()
{
foreach ($this->propertyInfos as $key => $propertyInfo) {
$this->propertyInfos[$key] = clone $propertyInfo;
}
foreach ($this->funcInfos as $key => $funcInfo) {
$this->funcInfos[$key] = clone $funcInfo;
}
}
/**
* @param Name[] $parents
*/
private function appendInheritedMemberSectionToClassSynopsis(DOMDocument $doc, DOMElement $classSynopsis, array $parents, string $label, string $inheritedLabel): void
{
if (empty($parents)) {
return;
}
$classSynopsis->appendChild(new DOMText("\n\n "));
$classSynopsisInfo = $doc->createElement("classsynopsisinfo", "$inheritedLabel");
$classSynopsisInfo->setAttribute("role", "comment");
$classSynopsis->appendChild($classSynopsisInfo);
foreach ($parents as $parent) {
$classSynopsis->appendChild(new DOMText("\n "));
$parentReference = self::getClassSynopsisReference($parent);
$includeElement = $this->createIncludeElement(
$doc,
"xmlns(db=http://docbook.org/ns/docbook) xpointer(id('$parentReference')/db:partintro/db:section/db:classsynopsis/db:fieldsynopsis[preceding-sibling::db:classsynopsisinfo[1][@role='comment' and text()='$label']]))"
);
$classSynopsis->appendChild($includeElement);
}
}
}
class FileInfo {
/** @var string[] */
public array $dependencies = [];
/** @var ConstInfo[] */
public array $constInfos = [];
/** @var FuncInfo[] */
public array $funcInfos = [];
/** @var ClassInfo[] */
public array $classInfos = [];
public bool $generateFunctionEntries = false;
public string $declarationPrefix = "";
public ?int $generateLegacyArginfoForPhpVersionId = null;
public bool $generateClassEntries = false;
public bool $isUndocumentable = false;
/**
* @return iterable<FuncInfo>
*/
public function getAllFuncInfos(): iterable {
yield from $this->funcInfos;
foreach ($this->classInfos as $classInfo) {
yield from $classInfo->funcInfos;
}
}
/**
* @return iterable<ConstInfo>
*/
public function getAllConstInfos(): iterable {
$result = $this->constInfos;
foreach ($this->classInfos as $classInfo) {
$result = array_merge($result, $classInfo->constInfos);
}
return $result;
}
/**
* @return iterable<PropertyInfo>
*/
public function getAllPropertyInfos(): iterable {
foreach ($this->classInfos as $classInfo) {
yield from $classInfo->propertyInfos;
}
}
public function __clone()
{
foreach ($this->funcInfos as $key => $funcInfo) {
$this->funcInfos[$key] = clone $funcInfo;
}
foreach ($this->classInfos as $key => $classInfo) {
$this->classInfos[$key] = clone $classInfo;
}
}
}
class DocCommentTag {
public string $name;
public ?string $value;
public function __construct(string $name, ?string $value) {
$this->name = $name;
$this->value = $value;
}
public function getValue(): string {
if ($this->value === null) {
throw new Exception("@$this->name does not have a value");
}
return $this->value;
}
public function getType(): string {
$value = $this->getValue();
$matches = [];
if ($this->name === "param") {
preg_match('/^\s*([\w\|\\\\\[\]<>, ]+)\s*\$\w+.*$/', $value, $matches);
} elseif ($this->name === "return" || $this->name === "var") {
preg_match('/^\s*([\w\|\\\\\[\]<>, ]+)/', $value, $matches);
}
if (!isset($matches[1])) {
throw new Exception("@$this->name doesn't contain a type or has an invalid format \"$value\"");
}
return trim($matches[1]);
}
public function getVariableName(): string {
$value = $this->value;
if ($value === null || strlen($value) === 0) {
throw new Exception("@$this->name doesn't have any value");
}
$matches = [];
if ($this->name === "param") {
preg_match('/^\s*[\w\|\\\\\[\]]+\s*\$(\w+).*$/', $value, $matches);
} elseif ($this->name === "prefer-ref") {
preg_match('/^\s*\$(\w+).*$/', $value, $matches);
}
if (!isset($matches[1])) {
throw new Exception("@$this->name doesn't contain a variable name or has an invalid format \"$value\"");
}
return $matches[1];
}
}
/** @return DocCommentTag[] */
function parseDocComment(DocComment $comment): array {
$commentText = substr($comment->getText(), 2, -2);
$tags = [];
foreach (explode("\n", $commentText) as $commentLine) {
$regex = '/^\*\s*@([a-z-]+)(?:\s+(.+))?$/';
if (preg_match($regex, trim($commentLine), $matches)) {
$tags[] = new DocCommentTag($matches[1], $matches[2] ?? null);
}
}
return $tags;
}
function parseFunctionLike(
PrettyPrinterAbstract $prettyPrinter,
FunctionOrMethodName $name,
int $classFlags,
int $flags,
Node\FunctionLike $func,
?string $cond,
bool $isUndocumentable
): FuncInfo {
try {
$comment = $func->getDocComment();
$paramMeta = [];
$aliasType = null;
$alias = null;
$isDeprecated = false;
$supportsCompileTimeEval = false;
$verify = true;
$docReturnType = null;
$tentativeReturnType = false;
$docParamTypes = [];
$refcount = null;
if ($comment) {
$tags = parseDocComment($comment);
foreach ($tags as $tag) {
switch ($tag->name) {
case 'alias':
case 'implementation-alias':
$aliasType = $tag->name;
$aliasParts = explode("::", $tag->getValue());
if (count($aliasParts) === 1) {
$alias = new FunctionName(new Name($aliasParts[0]));
} else {
$alias = new MethodName(new Name($aliasParts[0]), $aliasParts[1]);
}
break;
case 'deprecated':
$isDeprecated = true;
break;
case 'no-verify':
$verify = false;
break;
case 'tentative-return-type':
$tentativeReturnType = true;
break;
case 'return':
$docReturnType = $tag->getType();
break;
case 'param':
$docParamTypes[$tag->getVariableName()] = $tag->getType();
break;
case 'refcount':
$refcount = $tag->getValue();
break;
case 'compile-time-eval':
$supportsCompileTimeEval = true;
break;
case 'prefer-ref':
$varName = $tag->getVariableName();
if (!isset($paramMeta[$varName])) {
$paramMeta[$varName] = [];
}
$paramMeta[$varName][$tag->name] = true;
break;
case 'undocumentable':
$isUndocumentable = true;
break;
}
}
}
$varNameSet = [];
$args = [];
$numRequiredArgs = 0;
$foundVariadic = false;
foreach ($func->getParams() as $i => $param) {
$varName = $param->var->name;
$preferRef = !empty($paramMeta[$varName]['prefer-ref']);
$attributes = [];
foreach ($param->attrGroups as $attrGroup) {
foreach ($attrGroup->attrs as $attr) {
$attributes[] = new AttributeInfo($attr->name->toString(), $attr->args);
}
}
unset($paramMeta[$varName]);
if (isset($varNameSet[$varName])) {
throw new Exception("Duplicate parameter name $varName");
}
$varNameSet[$varName] = true;
if ($preferRef) {
$sendBy = ArgInfo::SEND_PREFER_REF;
} else if ($param->byRef) {
$sendBy = ArgInfo::SEND_BY_REF;
} else {
$sendBy = ArgInfo::SEND_BY_VAL;
}
if ($foundVariadic) {
throw new Exception("Only the last parameter can be variadic");
}
$type = $param->type ? Type::fromNode($param->type) : null;
if ($type === null && !isset($docParamTypes[$varName])) {
throw new Exception("Missing parameter type");
}
if ($param->default instanceof Expr\ConstFetch &&
$param->default->name->toLowerString() === "null" &&
$type && !$type->isNullable()
) {
$simpleType = $type->tryToSimpleType();
if ($simpleType === null) {
throw new Exception("Parameter $varName has null default, but is not nullable");
}
}
if ($param->default instanceof Expr\ClassConstFetch && $param->default->class->toLowerString() === "self") {
throw new Exception('The exact class name must be used instead of "self"');
}
$foundVariadic = $param->variadic;
$args[] = new ArgInfo(
$varName,
$sendBy,
$param->variadic,
$type,
isset($docParamTypes[$varName]) ? Type::fromString($docParamTypes[$varName]) : null,
$param->default ? $prettyPrinter->prettyPrintExpr($param->default) : null,
$attributes
);
if (!$param->default && !$param->variadic) {
$numRequiredArgs = $i + 1;
}
}
foreach (array_keys($paramMeta) as $var) {
throw new Exception("Found metadata for invalid param $var");
}
$returnType = $func->getReturnType();
if ($returnType === null && $docReturnType === null && !$name->isConstructor() && !$name->isDestructor()) {
throw new Exception("Missing return type");
}
$return = new ReturnInfo(
$func->returnsByRef(),
$returnType ? Type::fromNode($returnType) : null,
$docReturnType ? Type::fromString($docReturnType) : null,
$tentativeReturnType,
$refcount
);
return new FuncInfo(
$name,
$classFlags,
$flags,
$aliasType,
$alias,
$isDeprecated,
$supportsCompileTimeEval,
$verify,
$args,
$return,
$numRequiredArgs,
$cond,
$isUndocumentable
);
} catch (Exception $e) {
throw new Exception($name . "(): " .$e->getMessage());
}
}
function parseConstLike(
PrettyPrinterAbstract $prettyPrinter,
ConstOrClassConstName $name,
Node\Const_ $const,
int $flags,
?DocComment $docComment,
?string $cond,
?int $phpVersionIdMinimumCompatibility
): ConstInfo {
$phpDocType = null;
$deprecated = false;
$cValue = null;
$link = null;
if ($docComment) {
$tags = parseDocComment($docComment);
foreach ($tags as $tag) {
if ($tag->name === 'var') {
$phpDocType = $tag->getType();
} elseif ($tag->name === 'deprecated') {
$deprecated = true;
} elseif ($tag->name === 'cvalue') {
$cValue = $tag->value;
} elseif ($tag->name === 'link') {
$link = $tag->value;
}
}
}
if ($phpDocType === null) {
throw new Exception("Missing type for constant " . $name->__toString());
}
return new ConstInfo(
$name,
$flags,
$const->value,
$prettyPrinter->prettyPrintExpr($const->value),
Type::fromString($phpDocType),
$deprecated,
$cond,
$cValue,
$link,
$phpVersionIdMinimumCompatibility
);
}
function parseProperty(
Name $class,
int $flags,
Stmt\PropertyProperty $property,
?Node $type,
?DocComment $comment,
PrettyPrinterAbstract $prettyPrinter,
?int $phpVersionIdMinimumCompatibility
): PropertyInfo {
$phpDocType = null;
$isDocReadonly = false;
$link = null;
if ($comment) {
$tags = parseDocComment($comment);
foreach ($tags as $tag) {
if ($tag->name === 'var') {
$phpDocType = $tag->getType();
} elseif ($tag->name === 'readonly') {
$isDocReadonly = true;
} elseif ($tag->name === 'link') {
$link = $tag->value;
}
}
}
$propertyType = $type ? Type::fromNode($type) : null;
if ($propertyType === null && !$phpDocType) {
throw new Exception("Missing type for property $class::\$$property->name");
}
if ($property->default instanceof Expr\ConstFetch &&
$property->default->name->toLowerString() === "null" &&
$propertyType && !$propertyType->isNullable()
) {
$simpleType = $propertyType->tryToSimpleType();
if ($simpleType === null) {
throw new Exception(
"Property $class::\$$property->name has null default, but is not nullable");
}
}
return new PropertyInfo(
new PropertyName($class, $property->name->__toString()),
$flags,
$propertyType,
$phpDocType ? Type::fromString($phpDocType) : null,
$property->default,
$property->default ? $prettyPrinter->prettyPrintExpr($property->default) : null,
$isDocReadonly,
$link,
$phpVersionIdMinimumCompatibility
);
}
/**
* @param ConstInfo[] $consts
* @param PropertyInfo[] $properties
* @param FuncInfo[] $methods
* @param EnumCaseInfo[] $enumCases
*/
function parseClass(
Name $name,
Stmt\ClassLike $class,
array $consts,
array $properties,
array $methods,
array $enumCases,
?string $cond,
?int $minimumPhpVersionIdCompatibility,
bool $isUndocumentable
): ClassInfo {
$flags = $class instanceof Class_ ? $class->flags : 0;
$comment = $class->getDocComment();
$alias = null;
$isDeprecated = false;
$isStrictProperties = false;
$isNotSerializable = false;
$allowsDynamicProperties = false;
$attributes = [];
if ($comment) {
$tags = parseDocComment($comment);
foreach ($tags as $tag) {
if ($tag->name === 'alias') {
$alias = $tag->getValue();
} else if ($tag->name === 'deprecated') {
$isDeprecated = true;
} else if ($tag->name === 'strict-properties') {
$isStrictProperties = true;
} else if ($tag->name === 'not-serializable') {
$isNotSerializable = true;
} else if ($tag->name === 'undocumentable') {
$isUndocumentable = true;
}
}
}
foreach ($class->attrGroups as $attrGroup) {
foreach ($attrGroup->attrs as $attr) {
$attributes[] = new AttributeInfo($attr->name->toString(), $attr->args);
switch ($attr->name->toString()) {
case 'AllowDynamicProperties':
$allowsDynamicProperties = true;
break;
}
}
}
if ($isStrictProperties && $allowsDynamicProperties) {
throw new Exception("A class may not have '@strict-properties' and '#[\\AllowDynamicProperties]' at the same time.");
}
$extends = [];
$implements = [];
if ($class instanceof Class_) {
$classKind = "class";
if ($class->extends) {
$extends[] = $class->extends;
}
$implements = $class->implements;
} elseif ($class instanceof Interface_) {
$classKind = "interface";
$extends = $class->extends;
} else if ($class instanceof Trait_) {
$classKind = "trait";
} else if ($class instanceof Enum_) {
$classKind = "enum";
$implements = $class->implements;
} else {
throw new Exception("Unknown class kind " . get_class($class));
}
if ($isUndocumentable) {
foreach ($methods as $method) {
$method->isUndocumentable = true;
}
}
return new ClassInfo(
$name,
$flags,
$classKind,
$alias,
$class instanceof Enum_ && $class->scalarType !== null
? SimpleType::fromNode($class->scalarType) : null,
$isDeprecated,
$isStrictProperties,
$attributes,
$isNotSerializable,
$extends,
$implements,
$consts,
$properties,
$methods,
$enumCases,
$cond,
$minimumPhpVersionIdCompatibility,
$isUndocumentable
);
}
function handlePreprocessorConditions(array &$conds, Stmt $stmt): ?string {
foreach ($stmt->getComments() as $comment) {
$text = trim($comment->getText());
if (preg_match('/^#\s*if\s+(.+)$/', $text, $matches)) {
$conds[] = $matches[1];
} else if (preg_match('/^#\s*ifdef\s+(.+)$/', $text, $matches)) {
$conds[] = "defined($matches[1])";
} else if (preg_match('/^#\s*ifndef\s+(.+)$/', $text, $matches)) {
$conds[] = "!defined($matches[1])";
} else if (preg_match('/^#\s*else$/', $text)) {
if (empty($conds)) {
throw new Exception("Encountered else without corresponding #if");
}
$cond = array_pop($conds);
$conds[] = "!($cond)";
} else if (preg_match('/^#\s*endif$/', $text)) {
if (empty($conds)) {
throw new Exception("Encountered #endif without corresponding #if");
}
array_pop($conds);
} else if ($text[0] === '#') {
throw new Exception("Unrecognized preprocessor directive \"$text\"");
}
}
return empty($conds) ? null : implode(' && ', $conds);
}
function getFileDocComment(array $stmts): ?DocComment {
if (empty($stmts)) {
return null;
}
$comments = $stmts[0]->getComments();
if (empty($comments)) {
return null;
}
if ($comments[0] instanceof DocComment) {
return $comments[0];
}
return null;
}
function handleStatements(FileInfo $fileInfo, array $stmts, PrettyPrinterAbstract $prettyPrinter) {
$conds = [];
foreach ($stmts as $stmt) {
if ($stmt instanceof Stmt\Nop) {
continue;
}
if ($stmt instanceof Stmt\Namespace_) {
handleStatements($fileInfo, $stmt->stmts, $prettyPrinter);
continue;
}
$cond = handlePreprocessorConditions($conds, $stmt);
if ($stmt instanceof Stmt\Const_) {
foreach ($stmt->consts as $const) {
$fileInfo->constInfos[] = parseConstLike(
$prettyPrinter,
new ConstName($const->namespacedName, $const->name->toString()),
$const,
0,
$stmt->getDocComment(),
$cond,
$fileInfo->generateLegacyArginfoForPhpVersionId
);
}
continue;
}
if ($stmt instanceof Stmt\Function_) {
$fileInfo->funcInfos[] = parseFunctionLike(
$prettyPrinter,
new FunctionName($stmt->namespacedName),
0,
0,
$stmt,
$cond,
$fileInfo->isUndocumentable
);
continue;
}
if ($stmt instanceof Stmt\ClassLike) {
$className = $stmt->namespacedName;
$constInfos = [];
$propertyInfos = [];
$methodInfos = [];
$enumCaseInfos = [];
foreach ($stmt->stmts as $classStmt) {
$cond = handlePreprocessorConditions($conds, $classStmt);
if ($classStmt instanceof Stmt\Nop) {
continue;
}
$classFlags = $stmt instanceof Class_ ? $stmt->flags : 0;
$abstractFlag = $stmt instanceof Stmt\Interface_ ? Class_::MODIFIER_ABSTRACT : 0;
if ($classStmt instanceof Stmt\ClassConst) {
foreach ($classStmt->consts as $const) {
$constInfos[] = parseConstLike(
$prettyPrinter,
new ClassConstName($className, $const->name->toString()),
$const,
$classStmt->flags,
$classStmt->getDocComment(),
$cond,
$fileInfo->generateLegacyArginfoForPhpVersionId
);
}
} else if ($classStmt instanceof Stmt\Property) {
if (!($classStmt->flags & Class_::VISIBILITY_MODIFIER_MASK)) {
throw new Exception("Visibility modifier is required");
}
foreach ($classStmt->props as $property) {
$propertyInfos[] = parseProperty(
$className,
$classStmt->flags,
$property,
$classStmt->type,
$classStmt->getDocComment(),
$prettyPrinter,
$fileInfo->generateLegacyArginfoForPhpVersionId
);
}
} else if ($classStmt instanceof Stmt\ClassMethod) {
if (!($classStmt->flags & Class_::VISIBILITY_MODIFIER_MASK)) {
throw new Exception("Visibility modifier is required");
}
$methodInfos[] = parseFunctionLike(
$prettyPrinter,
new MethodName($className, $classStmt->name->toString()),
$classFlags,
$classStmt->flags | $abstractFlag,
$classStmt,
$cond,
$fileInfo->isUndocumentable
);
} else if ($classStmt instanceof Stmt\EnumCase) {
$enumCaseInfos[] = new EnumCaseInfo(
$classStmt->name->toString(), $classStmt->expr);
} else {
throw new Exception("Not implemented {$classStmt->getType()}");
}
}
$fileInfo->classInfos[] = parseClass(
$className, $stmt, $constInfos, $propertyInfos, $methodInfos, $enumCaseInfos, $cond, $fileInfo->generateLegacyArginfoForPhpVersionId, $fileInfo->isUndocumentable
);
continue;
}
if ($stmt instanceof Stmt\Expression) {
$expr = $stmt->expr;
if ($expr instanceof Expr\Include_) {
$fileInfo->dependencies[] = (string)EvaluatedValue::createFromExpression($expr->expr, null, null, [])->value;
continue;
}
}
throw new Exception("Unexpected node {$stmt->getType()}");
}
}
function parseStubFile(string $code): FileInfo {
$lexer = new PhpParser\Lexer\Emulative();
$parser = new PhpParser\Parser\Php7($lexer);
$nodeTraverser = new PhpParser\NodeTraverser;
$nodeTraverser->addVisitor(new PhpParser\NodeVisitor\NameResolver);
$prettyPrinter = new class extends Standard {
protected function pName_FullyQualified(Name\FullyQualified $node) {
return implode('\\', $node->parts);
}
};
$stmts = $parser->parse($code);
$nodeTraverser->traverse($stmts);
$fileInfo = new FileInfo;
$fileDocComment = getFileDocComment($stmts);
if ($fileDocComment) {
$fileTags = parseDocComment($fileDocComment);
foreach ($fileTags as $tag) {
if ($tag->name === 'generate-function-entries') {
$fileInfo->generateFunctionEntries = true;
$fileInfo->declarationPrefix = $tag->value ? $tag->value . " " : "";
} else if ($tag->name === 'generate-legacy-arginfo') {
if ($tag->value && !in_array((int) $tag->value, ALL_PHP_VERSION_IDS, true)) {
throw new Exception(
"Legacy PHP version must be one of: \"" . PHP_70_VERSION_ID . "\" (PHP 7.0), \"" . PHP_80_VERSION_ID . "\" (PHP 8.0), " .
"\"" . PHP_81_VERSION_ID . "\" (PHP 8.1), \"" . PHP_82_VERSION_ID . "\" (PHP 8.2), \"" . $tag->value . "\" provided"
);
}
$fileInfo->generateLegacyArginfoForPhpVersionId = $tag->value ? (int) $tag->value : PHP_70_VERSION_ID;
} else if ($tag->name === 'generate-class-entries') {
$fileInfo->generateClassEntries = true;
$fileInfo->declarationPrefix = $tag->value ? $tag->value . " " : "";
} else if ($tag->name === 'undocumentable') {
$fileInfo->isUndocumentable = true;
}
}
}
// Generating class entries require generating function/method entries
if ($fileInfo->generateClassEntries && !$fileInfo->generateFunctionEntries) {
$fileInfo->generateFunctionEntries = true;
}
handleStatements($fileInfo, $stmts, $prettyPrinter);
return $fileInfo;
}
function funcInfoToCode(FileInfo $fileInfo, FuncInfo $funcInfo): string {
$code = '';
$returnType = $funcInfo->return->type;
$isTentativeReturnType = $funcInfo->return->tentativeReturnType;
$php81MinimumCompatibility = $fileInfo->generateLegacyArginfoForPhpVersionId === null || $fileInfo->generateLegacyArginfoForPhpVersionId >= PHP_81_VERSION_ID;
if ($returnType !== null) {
if ($isTentativeReturnType && !$php81MinimumCompatibility) {
$code .= "#if (PHP_VERSION_ID >= " . PHP_81_VERSION_ID . ")\n";
}
if (null !== $simpleReturnType = $returnType->tryToSimpleType()) {
if ($simpleReturnType->isBuiltin) {
$code .= sprintf(
"%s(%s, %d, %d, %s, %d)\n",
$isTentativeReturnType ? "ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX" : "ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX",
$funcInfo->getArgInfoName(), $funcInfo->return->byRef,
$funcInfo->numRequiredArgs,
$simpleReturnType->toTypeCode(), $returnType->isNullable()
);
} else {
$code .= sprintf(
"%s(%s, %d, %d, %s, %d)\n",
$isTentativeReturnType ? "ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_OBJ_INFO_EX" : "ZEND_BEGIN_ARG_WITH_RETURN_OBJ_INFO_EX",
$funcInfo->getArgInfoName(), $funcInfo->return->byRef,
$funcInfo->numRequiredArgs,
$simpleReturnType->toEscapedName(), $returnType->isNullable()
);
}
} else {
$arginfoType = $returnType->toArginfoType();
if ($arginfoType->hasClassType()) {
$code .= sprintf(
"%s(%s, %d, %d, %s, %s)\n",
$isTentativeReturnType ? "ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_OBJ_TYPE_MASK_EX" : "ZEND_BEGIN_ARG_WITH_RETURN_OBJ_TYPE_MASK_EX",
$funcInfo->getArgInfoName(), $funcInfo->return->byRef,
$funcInfo->numRequiredArgs,
$arginfoType->toClassTypeString(), $arginfoType->toTypeMask()
);
} else {
$code .= sprintf(
"%s(%s, %d, %d, %s)\n",
$isTentativeReturnType ? "ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_MASK_EX" : "ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX",
$funcInfo->getArgInfoName(), $funcInfo->return->byRef,
$funcInfo->numRequiredArgs,
$arginfoType->toTypeMask()
);
}
}
if ($isTentativeReturnType && !$php81MinimumCompatibility) {
$code .= sprintf(
"#else\nZEND_BEGIN_ARG_INFO_EX(%s, 0, %d, %d)\n#endif\n",
$funcInfo->getArgInfoName(), $funcInfo->return->byRef, $funcInfo->numRequiredArgs
);
}
} else {
$code .= sprintf(
"ZEND_BEGIN_ARG_INFO_EX(%s, 0, %d, %d)\n",
$funcInfo->getArgInfoName(), $funcInfo->return->byRef, $funcInfo->numRequiredArgs
);
}
foreach ($funcInfo->args as $argInfo) {
$argKind = $argInfo->isVariadic ? "ARG_VARIADIC" : "ARG";
$argDefaultKind = $argInfo->hasProperDefaultValue() ? "_WITH_DEFAULT_VALUE" : "";
$argType = $argInfo->type;
if ($argType !== null) {
if (null !== $simpleArgType = $argType->tryToSimpleType()) {
if ($simpleArgType->isBuiltin) {
$code .= sprintf(
"\tZEND_%s_TYPE_INFO%s(%s, %s, %s, %d%s)\n",
$argKind, $argDefaultKind, $argInfo->getSendByString(), $argInfo->name,
$simpleArgType->toTypeCode(), $argType->isNullable(),
$argInfo->hasProperDefaultValue() ? ", " . $argInfo->getDefaultValueAsArginfoString() : ""
);
} else {
$code .= sprintf(
"\tZEND_%s_OBJ_INFO%s(%s, %s, %s, %d%s)\n",
$argKind,$argDefaultKind, $argInfo->getSendByString(), $argInfo->name,
$simpleArgType->toEscapedName(), $argType->isNullable(),
$argInfo->hasProperDefaultValue() ? ", " . $argInfo->getDefaultValueAsArginfoString() : ""
);
}
} else {
$arginfoType = $argType->toArginfoType();
if ($arginfoType->hasClassType()) {
$code .= sprintf(
"\tZEND_%s_OBJ_TYPE_MASK(%s, %s, %s, %s%s)\n",
$argKind, $argInfo->getSendByString(), $argInfo->name,
$arginfoType->toClassTypeString(), $arginfoType->toTypeMask(),
!$argInfo->isVariadic ? ", " . $argInfo->getDefaultValueAsArginfoString() : ""
);
} else {
$code .= sprintf(
"\tZEND_%s_TYPE_MASK(%s, %s, %s, %s)\n",
$argKind, $argInfo->getSendByString(), $argInfo->name,
$arginfoType->toTypeMask(),
$argInfo->getDefaultValueAsArginfoString()
);
}
}
} else {
$code .= sprintf(
"\tZEND_%s_INFO%s(%s, %s%s)\n",
$argKind, $argDefaultKind, $argInfo->getSendByString(), $argInfo->name,
$argInfo->hasProperDefaultValue() ? ", " . $argInfo->getDefaultValueAsArginfoString() : ""
);
}
}
$code .= "ZEND_END_ARG_INFO()";
return $code . "\n";
}
/** @param FuncInfo[] $generatedFuncInfos */
function findEquivalentFuncInfo(array $generatedFuncInfos, FuncInfo $funcInfo): ?FuncInfo {
foreach ($generatedFuncInfos as $generatedFuncInfo) {
if ($generatedFuncInfo->equalsApartFromNameAndRefcount($funcInfo)) {
return $generatedFuncInfo;
}
}
return null;
}
/**
* @template T
* @param iterable<T> $infos
* @param Closure(T): string|null $codeGenerator
* @param ?string $parentCond
*/
function generateCodeWithConditions(
iterable $infos, string $separator, Closure $codeGenerator, ?string $parentCond = null): string {
$code = "";
foreach ($infos as $info) {
$infoCode = $codeGenerator($info);
if ($infoCode === null) {
continue;
}
$code .= $separator;
if ($info->cond && $info->cond !== $parentCond) {
$code .= "#if {$info->cond}\n";
$code .= $infoCode;
$code .= "#endif\n";
} else {
$code .= $infoCode;
}
}
return $code;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
function generateArgInfoCode(
string $stubFilenameWithoutExtension,
FileInfo $fileInfo,
iterable $allConstInfos,
string $stubHash
): string {
$code = "/* This is a generated file, edit the .stub.php file instead.\n"
. " * Stub hash: $stubHash */\n";
$generatedFuncInfos = [];
$code .= generateCodeWithConditions(
$fileInfo->getAllFuncInfos(), "\n",
static function (FuncInfo $funcInfo) use (&$generatedFuncInfos, $fileInfo) {
/* If there already is an equivalent arginfo structure, only emit a #define */
if ($generatedFuncInfo = findEquivalentFuncInfo($generatedFuncInfos, $funcInfo)) {
$code = sprintf(
"#define %s %s\n",
$funcInfo->getArgInfoName(), $generatedFuncInfo->getArgInfoName()
);
} else {
$code = funcInfoToCode($fileInfo, $funcInfo);
}
$generatedFuncInfos[] = $funcInfo;
return $code;
}
);
if ($fileInfo->generateFunctionEntries) {
$code .= "\n\n";
$generatedFunctionDeclarations = [];
$code .= generateCodeWithConditions(
$fileInfo->getAllFuncInfos(), "",
static function (FuncInfo $funcInfo) use ($fileInfo, &$generatedFunctionDeclarations) {
$key = $funcInfo->getDeclarationKey();
if (isset($generatedFunctionDeclarations[$key])) {
return null;
}
$generatedFunctionDeclarations[$key] = true;
return $fileInfo->declarationPrefix . $funcInfo->getDeclaration();
}
);
if (!empty($fileInfo->funcInfos)) {
$code .= generateFunctionEntries(null, $fileInfo->funcInfos);
}
foreach ($fileInfo->classInfos as $classInfo) {
$code .= generateFunctionEntries($classInfo->name, $classInfo->funcInfos, $classInfo->cond);
}
}
$php82MinimumCompatibility = $fileInfo->generateLegacyArginfoForPhpVersionId === null || $fileInfo->generateLegacyArginfoForPhpVersionId >= PHP_82_VERSION_ID;
if ($fileInfo->generateClassEntries) {
if ($attributeInitializationCode = generateAttributeInitialization($fileInfo->funcInfos, $allConstInfos, null)) {
if (!$php82MinimumCompatibility) {
$attributeInitializationCode = "\n#if (PHP_VERSION_ID >= " . PHP_82_VERSION_ID . ")" . $attributeInitializationCode . "#endif\n";
}
}
if ($attributeInitializationCode !== "" || !empty($fileInfo->constInfos)) {
$code .= "\nstatic void register_{$stubFilenameWithoutExtension}_symbols(int module_number)\n";
$code .= "{\n";
foreach ($fileInfo->constInfos as $constInfo) {
$code .= $constInfo->getDeclaration($allConstInfos);
}
if (!empty($attributeInitializationCode !== "" && $fileInfo->constInfos)) {
$code .= "\n";
}
$code .= $attributeInitializationCode;
$code .= "}\n";
}
$code .= generateClassEntryCode($fileInfo, $allConstInfos);
}
return $code;
}
/**
* @param iterable<ConstInfo> $allConstInfos
*/
function generateClassEntryCode(FileInfo $fileInfo, iterable $allConstInfos): string {
$code = "";
foreach ($fileInfo->classInfos as $class) {
$code .= "\n" . $class->getRegistration($allConstInfos);
}
return $code;
}
/** @param FuncInfo[] $funcInfos */
function generateFunctionEntries(?Name $className, array $funcInfos, ?string $cond = null): string {
$code = "\n\n";
if ($cond) {
$code .= "#if {$cond}\n";
}
$functionEntryName = "ext_functions";
if ($className) {
$underscoreName = implode("_", $className->parts);
$functionEntryName = "class_{$underscoreName}_methods";
}
$code .= "static const zend_function_entry {$functionEntryName}[] = {\n";
$code .= generateCodeWithConditions($funcInfos, "", static function (FuncInfo $funcInfo) {
return $funcInfo->getFunctionEntry();
}, $cond);
$code .= "\tZEND_FE_END\n";
$code .= "};\n";
if ($cond) {
$code .= "#endif\n";
}
return $code;
}
/**
* @param iterable<FuncInfo> $funcInfos
*/
function generateAttributeInitialization(iterable $funcInfos, iterable $allConstInfos, ?string $parentCond = null): string {
return generateCodeWithConditions(
$funcInfos,
"",
static function (FuncInfo $funcInfo) use ($allConstInfos) {
$code = null;
foreach ($funcInfo->args as $index => $arg) {
if ($funcInfo->name instanceof MethodName) {
$functionTable = "&class_entry->function_table";
} else {
$functionTable = "CG(function_table)";
}
foreach ($arg->attributes as $attribute) {
$code .= $attribute->generateCode("zend_add_parameter_attribute(zend_hash_str_find_ptr($functionTable, \"" . $funcInfo->name->getNameForAttributes() . "\", sizeof(\"" . $funcInfo->name->getNameForAttributes() . "\") - 1), $index", "{$funcInfo->name->getMethodSynopsisFilename()}_arg{$index}", $allConstInfos);
}
}
return $code;
},
$parentCond
);
}
/** @param array<string, FuncInfo> $funcMap */
function generateOptimizerInfo(array $funcMap): string {
$code = "/* This is a generated file, edit the .stub.php files instead. */\n\n";
$code .= "static const func_info_t func_infos[] = {\n";
$code .= generateCodeWithConditions($funcMap, "", static function (FuncInfo $funcInfo) {
return $funcInfo->getOptimizerInfo();
});
$code .= "};\n";
return $code;
}
/**
* @param array<int, string[]> $flagsByPhpVersions
* @return string[]
*/
function generateVersionDependentFlagCode(string $codeTemplate, array $flagsByPhpVersions, ?int $phpVersionIdMinimumCompatibility): array
{
$phpVersions = ALL_PHP_VERSION_IDS;
sort($phpVersions);
$currentPhpVersion = end($phpVersions);
// No version compatibility is needed
if ($phpVersionIdMinimumCompatibility === null) {
if (empty($flagsByPhpVersions[$currentPhpVersion])) {
return [];
}
return [sprintf($codeTemplate, implode("|", $flagsByPhpVersions[$currentPhpVersion]))];
}
// Remove flags which depend on a PHP version below the minimally supported one
ksort($flagsByPhpVersions);
$index = array_search($phpVersionIdMinimumCompatibility, array_keys($flagsByPhpVersions));
if ($index === false) {
throw new Exception("Missing version dependent flags for PHP version ID \"$phpVersionIdMinimumCompatibility\"");
}
$flagsByPhpVersions = array_slice($flagsByPhpVersions, $index, null, true);
// Remove empty version-specific flags
$flagsByPhpVersions = array_filter(
$flagsByPhpVersions,
static function (array $value): bool {
return !empty($value);
});
// There are no version-specific flags
if (empty($flagsByPhpVersions)) {
return [];
}
// Remove version-specific flags which don't differ from the previous one
$previousVersionId = null;
foreach ($flagsByPhpVersions as $versionId => $versionFlags) {
if ($previousVersionId !== null && $flagsByPhpVersions[$previousVersionId] === $versionFlags) {
unset($flagsByPhpVersions[$versionId]);
} else {
$previousVersionId = $versionId;
}
}
$flagCount = count($flagsByPhpVersions);
// Do not add a condition unnecessarily when the only version is the same as the minimally supported one
if ($flagCount === 1) {
reset($flagsByPhpVersions);
$firstVersion = key($flagsByPhpVersions);
if ($firstVersion === $phpVersionIdMinimumCompatibility) {
return [sprintf($codeTemplate, implode("|", reset($flagsByPhpVersions)))];
}
}
// Add the necessary conditions around the code using the version-specific flags
$result = [];
$i = 0;
foreach (array_reverse($flagsByPhpVersions, true) as $version => $versionFlags) {
$code = "";
$if = $i === 0 ? "#if" : "#elif";
$endif = $i === $flagCount - 1 ? "#endif\n" : "";
$code .= "$if (PHP_VERSION_ID >= $version)\n";
$code .= sprintf($codeTemplate, implode("|", $versionFlags));
$code .= $endif;
$result[] = $code;
$i++;
}
return $result;
}
/**
* @param array<string, ClassInfo> $classMap
* @param iterable<ConstInfo> $allConstInfos
* @return array<string, string>
*/
function generateClassSynopses(array $classMap, iterable $allConstInfos): array {
$result = [];
foreach ($classMap as $classInfo) {
$classSynopsis = $classInfo->getClassSynopsisDocument($classMap, $allConstInfos);
if ($classSynopsis !== null) {
$result[ClassInfo::getClassSynopsisFilename($classInfo->name) . ".xml"] = $classSynopsis;
}
}
return $result;
}
/**
* @param array<string, ClassInfo> $classMap
* $param iterable<ConstInfo> $allConstInfos
* @return array<string, string>
*/
function replaceClassSynopses(string $targetDirectory, array $classMap, iterable $allConstInfos, bool $isVerify): array
{
$existingClassSynopses = [];
$classSynopses = [];
$it = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($targetDirectory),
RecursiveIteratorIterator::LEAVES_ONLY
);
foreach ($it as $file) {
$pathName = $file->getPathName();
if (!preg_match('/\.xml$/i', $pathName)) {
continue;
}
$xml = file_get_contents($pathName);
if ($xml === false) {
continue;
}
if (stripos($xml, "<classsynopsis") === false) {
continue;
}
$replacedXml = getReplacedSynopsisXml($xml);
$doc = new DOMDocument();
$doc->formatOutput = false;
$doc->preserveWhiteSpace = true;
$doc->validateOnParse = true;
$success = $doc->loadXML($replacedXml);
if (!$success) {
echo "Failed opening $pathName\n";
continue;
}
$classSynopsisElements = [];
foreach ($doc->getElementsByTagName("classsynopsis") as $element) {
$classSynopsisElements[] = $element;
}
foreach ($classSynopsisElements as $classSynopsis) {
if (!$classSynopsis instanceof DOMElement) {
continue;
}
$firstChild = $classSynopsis->firstElementChild;
if ($firstChild === null) {
continue;
}
$firstChild = $firstChild->firstElementChild;
if ($firstChild === null) {
continue;
}
$className = $firstChild->textContent;
if (!isset($classMap[$className])) {
continue;
}
$existingClassSynopses[$className] = $className;
$classInfo = $classMap[$className];
$newClassSynopsis = $classInfo->getClassSynopsisElement($doc, $classMap, $allConstInfos);
if ($newClassSynopsis === null) {
continue;
}
// Check if there is any change - short circuit if there is not any.
if (replaceAndCompareXmls($doc, $classSynopsis, $newClassSynopsis)) {
continue;
}
// Return the updated XML
$replacedXml = $doc->saveXML();
$replacedXml = preg_replace(
[
"/REPLACED-ENTITY-([A-Za-z0-9._{}%-]+?;)/",
'/<phpdoc:(classref|exceptionref)\s+xmlns:phpdoc=\"([^"]+)"\s+xmlns="([^"]+)"\s+xml:id="([^"]+)"\s*>/i',
'/<phpdoc:(classref|exceptionref)\s+xmlns:phpdoc=\"([^"]+)"\s+xmlns="([^"]+)"\s+xmlns:xi="([^"]+)"\s+xml:id="([^"]+)"\s*>/i',
'/<phpdoc:(classref|exceptionref)\s+xmlns:phpdoc=\"([^"]+)"\s+xmlns="([^"]+)"\s+xmlns:xlink="([^"]+)"\s+xmlns:xi="([^"]+)"\s+xml:id="([^"]+)"\s*>/i',
'/<phpdoc:(classref|exceptionref)\s+xmlns:phpdoc=\"([^"]+)"\s+xmlns:xlink="([^"]+)"\s+xmlns:xi="([^"]+)"\s+xmlns="([^"]+)"\s+xml:id="([^"]+)"\s*>/i',
'/<phpdoc:(classref|exceptionref)\s+xmlns=\"([^"]+)\"\s+xmlns:xlink="([^"]+)"\s+xmlns:xi="([^"]+)"\s+xmlns:phpdoc="([^"]+)"\s+xml:id="([^"]+)"\s*>/i',
],
[
"&$1",
"<phpdoc:$1 xml:id=\"$4\" xmlns:phpdoc=\"$2\" xmlns=\"$3\">",
"<phpdoc:$1 xml:id=\"$5\" xmlns:phpdoc=\"$2\" xmlns=\"$3\" xmlns:xi=\"$4\">",
"<phpdoc:$1 xml:id=\"$6\" xmlns:phpdoc=\"$2\" xmlns=\"$3\" xmlns:xlink=\"$4\" xmlns:xi=\"$5\">",
"<phpdoc:$1 xml:id=\"$6\" xmlns:phpdoc=\"$2\" xmlns=\"$5\" xmlns:xlink=\"$3\" xmlns:xi=\"$4\">",
"<phpdoc:$1 xml:id=\"$6\" xmlns:phpdoc=\"$5\" xmlns=\"$2\" xmlns:xlink=\"$3\" xmlns:xi=\"$4\">",
],
$replacedXml
);
$classSynopses[$pathName] = $replacedXml;
}
}
if ($isVerify) {
$missingClassSynopses = array_diff_key($classMap, $existingClassSynopses);
foreach ($missingClassSynopses as $className => $info) {
/** @var ClassInfo $info */
if (!$info->isUndocumentable) {
echo "Warning: Missing class synopsis for $className\n";
}
}
}
return $classSynopses;
}
function getReplacedSynopsisXml(string $xml): string
{
return preg_replace(
[
"/&([A-Za-z0-9._{}%-]+?;)/",
"/<(\/)*xi:([A-Za-z]+?)/"
],
[
"REPLACED-ENTITY-$1",
"<$1XI$2",
],
$xml
);
}
/**
* @param array<string, FuncInfo> $funcMap
* @param array<string, FuncInfo> $aliasMap
* @return array<string, string>
*/
function generateMethodSynopses(array $funcMap, array $aliasMap): array {
$result = [];
foreach ($funcMap as $funcInfo) {
$methodSynopsis = $funcInfo->getMethodSynopsisDocument($funcMap, $aliasMap);
if ($methodSynopsis !== null) {
$result[$funcInfo->name->getMethodSynopsisFilename() . ".xml"] = $methodSynopsis;
}
}
return $result;
}
/**
* @param array<string, FuncInfo> $funcMap
* @param array<string, FuncInfo> $aliasMap
* @return array<string, string>
*/
function replaceMethodSynopses(string $targetDirectory, array $funcMap, array $aliasMap, bool $isVerify): array {
$existingMethodSynopses = [];
$methodSynopses = [];
$it = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($targetDirectory),
RecursiveIteratorIterator::LEAVES_ONLY
);
foreach ($it as $file) {
$pathName = $file->getPathName();
if (!preg_match('/\.xml$/i', $pathName)) {
continue;
}
$xml = file_get_contents($pathName);
if ($xml === false) {
continue;
}
if ($isVerify) {
$matches = [];
preg_match("/<refname>\s*([\w:]+)\s*<\/refname>\s*<refpurpose>\s*&Alias;\s*<(?:function|methodname)>\s*([\w:]+)\s*<\/(?:function|methodname)>\s*<\/refpurpose>/i", $xml, $matches);
$aliasName = $matches[1] ?? null;
$alias = $funcMap[$aliasName] ?? null;
$funcName = $matches[2] ?? null;
$func = $funcMap[$funcName] ?? null;
if ($alias &&
!$alias->isUndocumentable &&
($func === null || $func->alias === null || $func->alias->__toString() !== $aliasName) &&
($alias->alias === null || $alias->alias->__toString() !== $funcName)
) {
echo "Warning: $aliasName()" . ($alias->alias ? " is an alias of " . $alias->alias->__toString() . "(), but it" : "") . " is incorrectly documented as an alias for $funcName()\n";
}
$matches = [];
preg_match("/<(?:para|simpara)>\s*(?:&info.function.alias;|&info.method.alias;|&Alias;)\s+<(?:function|methodname)>\s*([\w:]+)\s*<\/(?:function|methodname)>/i", $xml, $matches);
$descriptionFuncName = $matches[1] ?? null;
$descriptionFunc = $funcMap[$descriptionFuncName] ?? null;
if ($descriptionFunc && $funcName !== $descriptionFuncName) {
echo "Warning: Alias in the method synopsis description of $pathName doesn't match the alias in the <refpurpose>\n";
}
if ($aliasName) {
$existingMethodSynopses[$aliasName] = $aliasName;
}
}
if (stripos($xml, "<methodsynopsis") === false && stripos($xml, "<constructorsynopsis") === false && stripos($xml, "<destructorsynopsis") === false) {
continue;
}
$replacedXml = getReplacedSynopsisXml($xml);
$doc = new DOMDocument();
$doc->formatOutput = false;
$doc->preserveWhiteSpace = true;
$doc->validateOnParse = true;
$success = $doc->loadXML($replacedXml);
if (!$success) {
echo "Failed opening $pathName\n";
continue;
}
$methodSynopsisElements = [];
foreach ($doc->getElementsByTagName("constructorsynopsis") as $element) {
$methodSynopsisElements[] = $element;
}
foreach ($doc->getElementsByTagName("destructorsynopsis") as $element) {
$methodSynopsisElements[] = $element;
}
foreach ($doc->getElementsByTagName("methodsynopsis") as $element) {
$methodSynopsisElements[] = $element;
}
foreach ($methodSynopsisElements as $methodSynopsis) {
if (!$methodSynopsis instanceof DOMElement) {
continue;
}
$list = $methodSynopsis->getElementsByTagName("methodname");
$item = $list->item(0);
if (!$item instanceof DOMElement) {
continue;
}
$funcName = $item->textContent;
if (!isset($funcMap[$funcName])) {
continue;
}
$funcInfo = $funcMap[$funcName];
$existingMethodSynopses[$funcInfo->name->__toString()] = $funcInfo->name->__toString();
$newMethodSynopsis = $funcInfo->getMethodSynopsisElement($funcMap, $aliasMap, $doc);
if ($newMethodSynopsis === null) {
continue;
}
// Retrieve current signature
$params = [];
$list = $methodSynopsis->getElementsByTagName("methodparam");
foreach ($list as $i => $item) {
if (!$item instanceof DOMElement) {
continue;
}
$paramList = $item->getElementsByTagName("parameter");
if ($paramList->count() !== 1) {
continue;
}
$paramName = $paramList->item(0)->textContent;
$paramTypes = [];
$paramList = $item->getElementsByTagName("type");
foreach ($paramList as $type) {
if (!$type instanceof DOMElement) {
continue;
}
$paramTypes[] = $type->textContent;
}
$params[$paramName] = ["index" => $i, "type" => $paramTypes];
}
// Check if there is any change - short circuit if there is not any.
if (replaceAndCompareXmls($doc, $methodSynopsis, $newMethodSynopsis)) {
continue;
}
// Update parameter references
$paramList = $doc->getElementsByTagName("parameter");
/** @var DOMElement $paramElement */
foreach ($paramList as $paramElement) {
if ($paramElement->parentNode && $paramElement->parentNode->nodeName === "methodparam") {
continue;
}
$name = $paramElement->textContent;
if (!isset($params[$name])) {
continue;
}
$index = $params[$name]["index"];
if (!isset($funcInfo->args[$index])) {
continue;
}
$paramElement->textContent = $funcInfo->args[$index]->name;
}
// Return the updated XML
$replacedXml = $doc->saveXML();
$replacedXml = preg_replace(
[
"/REPLACED-ENTITY-([A-Za-z0-9._{}%-]+?;)/",
'/<refentry\s+xmlns="([^"]+)"\s+xml:id="([^"]+)"\s*>/i',
'/<refentry\s+xmlns="([^"]+)"\s+xmlns:xlink="([^"]+)"\s+xml:id="([^"]+)"\s*>/i',
],
[
"&$1",
"<refentry xml:id=\"$2\" xmlns=\"$1\">",
"<refentry xml:id=\"$3\" xmlns=\"$1\" xmlns:xlink=\"$2\">",
],
$replacedXml
);
$methodSynopses[$pathName] = $replacedXml;
}
}
if ($isVerify) {
$missingMethodSynopses = array_diff_key($funcMap, $existingMethodSynopses);
foreach ($missingMethodSynopses as $functionName => $info) {
/** @var FuncInfo $info */
if (!$info->isUndocumentable) {
echo "Warning: Missing method synopsis for $functionName()\n";
}
}
}
return $methodSynopses;
}
function replaceAndCompareXmls(DOMDocument $doc, DOMElement $originalSynopsis, DOMElement $newSynopsis): bool
{
$docComparator = new DOMDocument();
$docComparator->preserveWhiteSpace = false;
$docComparator->formatOutput = true;
$xml1 = $doc->saveXML($originalSynopsis);
$xml1 = getReplacedSynopsisXml($xml1);
$docComparator->loadXML($xml1);
$xml1 = $docComparator->saveXML();
$originalSynopsis->parentNode->replaceChild($newSynopsis, $originalSynopsis);
$xml2 = $doc->saveXML($newSynopsis);
$xml2 = getReplacedSynopsisXml($xml2);
$docComparator->loadXML($xml2);
$xml2 = $docComparator->saveXML();
return $xml1 === $xml2;
}
function installPhpParser(string $version, string $phpParserDir) {
$lockFile = __DIR__ . "/PHP-Parser-install-lock";
$lockFd = fopen($lockFile, 'w+');
if (!flock($lockFd, LOCK_EX)) {
throw new Exception("Failed to acquire installation lock");
}
try {
// Check whether a parallel process has already installed PHP-Parser.
if (is_dir($phpParserDir)) {
return;
}
$cwd = getcwd();
chdir(__DIR__);
$tarName = "v$version.tar.gz";
passthru("wget https://github.com/nikic/PHP-Parser/archive/$tarName", $exit);
if ($exit !== 0) {
passthru("curl -LO https://github.com/nikic/PHP-Parser/archive/$tarName", $exit);
}
if ($exit !== 0) {
throw new Exception("Failed to download PHP-Parser tarball");
}
if (!mkdir($phpParserDir)) {
throw new Exception("Failed to create directory $phpParserDir");
}
passthru("tar xvzf $tarName -C PHP-Parser-$version --strip-components 1", $exit);
if ($exit !== 0) {
throw new Exception("Failed to extract PHP-Parser tarball");
}
unlink(__DIR__ . "/$tarName");
chdir($cwd);
} finally {
flock($lockFd, LOCK_UN);
@unlink($lockFile);
}
}
function initPhpParser() {
static $isInitialized = false;
if ($isInitialized) {
return;
}
if (!extension_loaded("tokenizer")) {
throw new Exception("The \"tokenizer\" extension is not available");
}
$isInitialized = true;
$version = "4.15.1";
$phpParserDir = __DIR__ . "/PHP-Parser-$version";
if (!is_dir($phpParserDir)) {
installPhpParser($version, $phpParserDir);
}
spl_autoload_register(static function(string $class) use ($phpParserDir) {
if (strpos($class, "PhpParser\\") === 0) {
$fileName = $phpParserDir . "/lib/" . str_replace("\\", "/", $class) . ".php";
require $fileName;
}
});
}
$optind = null;
$options = getopt(
"fh",
[
"force-regeneration", "parameter-stats", "help", "verify", "generate-classsynopses", "replace-classsynopses",
"generate-methodsynopses", "replace-methodsynopses", "generate-optimizer-info"
],
$optind
);
$context = new Context;
$printParameterStats = isset($options["parameter-stats"]);
$verify = isset($options["verify"]);
$generateClassSynopses = isset($options["generate-classsynopses"]);
$replaceClassSynopses = isset($options["replace-classsynopses"]);
$generateMethodSynopses = isset($options["generate-methodsynopses"]);
$replaceMethodSynopses = isset($options["replace-methodsynopses"]);
$generateOptimizerInfo = isset($options["generate-optimizer-info"]);
$context->forceRegeneration = isset($options["f"]) || isset($options["force-regeneration"]);
$context->forceParse = $context->forceRegeneration || $printParameterStats || $verify || $generateClassSynopses || $generateOptimizerInfo || $replaceClassSynopses || $generateMethodSynopses || $replaceMethodSynopses;
$targetSynopses = $argv[$argc - 1] ?? null;
if ($replaceClassSynopses && $targetSynopses === null) {
die("A target class synopsis directory must be provided for.\n");
}
if ($replaceMethodSynopses && $targetSynopses === null) {
die("A target method synopsis directory must be provided.\n");
}
if (isset($options["h"]) || isset($options["help"])) {
die("\nusage: gen_stub.php [ -f | --force-regeneration ] [ --generate-classsynopses ] [ --replace-classsynopses ] [ --generate-methodsynopses ] [ --replace-methodsynopses ] [ --parameter-stats ] [ --verify ] [ --generate-optimizer-info ] [ -h | --help ] [ name.stub.php | directory ] [ directory ]\n\n");
}
$fileInfos = [];
$locations = array_slice($argv, $optind) ?: ['.'];
foreach (array_unique($locations) as $location) {
if (is_file($location)) {
// Generate single file.
$fileInfo = processStubFile($location, $context);
if ($fileInfo) {
$fileInfos[] = $fileInfo;
}
} else if (is_dir($location)) {
array_push($fileInfos, ...processDirectory($location, $context));
} else {
echo "$location is neither a file nor a directory.\n";
exit(1);
}
}
if ($printParameterStats) {
$parameterStats = [];
foreach ($fileInfos as $fileInfo) {
foreach ($fileInfo->getAllFuncInfos() as $funcInfo) {
foreach ($funcInfo->args as $argInfo) {
if (!isset($parameterStats[$argInfo->name])) {
$parameterStats[$argInfo->name] = 0;
}
$parameterStats[$argInfo->name]++;
}
}
}
arsort($parameterStats);
echo json_encode($parameterStats, JSON_PRETTY_PRINT), "\n";
}
/** @var array<string, ClassInfo> $classMap */
$classMap = [];
/** @var array<string, FuncInfo> $funcMap */
$funcMap = [];
/** @var array<string, FuncInfo> $aliasMap */
$aliasMap = [];
foreach ($fileInfos as $fileInfo) {
foreach ($fileInfo->getAllFuncInfos() as $funcInfo) {
$funcMap[$funcInfo->name->__toString()] = $funcInfo;
// TODO: Don't use aliasMap for methodsynopsis?
if ($funcInfo->aliasType === "alias") {
$aliasMap[$funcInfo->alias->__toString()] = $funcInfo;
}
}
foreach ($fileInfo->classInfos as $classInfo) {
$classMap[$classInfo->name->__toString()] = $classInfo;
}
}
if ($verify) {
$errors = [];
foreach ($funcMap as $aliasFunc) {
if (!$aliasFunc->alias) {
continue;
}
if (!isset($funcMap[$aliasFunc->alias->__toString()])) {
$errors[] = "Aliased function {$aliasFunc->alias}() cannot be found";
continue;
}
if (!$aliasFunc->verify) {
continue;
}
$aliasedFunc = $funcMap[$aliasFunc->alias->__toString()];
$aliasedArgs = $aliasedFunc->args;
$aliasArgs = $aliasFunc->args;
if ($aliasFunc->isInstanceMethod() !== $aliasedFunc->isInstanceMethod()) {
if ($aliasFunc->isInstanceMethod()) {
$aliasedArgs = array_slice($aliasedArgs, 1);
}
if ($aliasedFunc->isInstanceMethod()) {
$aliasArgs = array_slice($aliasArgs, 1);
}
}
array_map(
function(?ArgInfo $aliasArg, ?ArgInfo $aliasedArg) use ($aliasFunc, $aliasedFunc, &$errors) {
if ($aliasArg === null) {
assert($aliasedArg !== null);
$errors[] = "{$aliasFunc->name}(): Argument \$$aliasedArg->name of aliased function {$aliasedFunc->name}() is missing";
return null;
}
if ($aliasedArg === null) {
$errors[] = "{$aliasedFunc->name}(): Argument \$$aliasArg->name of alias function {$aliasFunc->name}() is missing";
return null;
}
if ($aliasArg->name !== $aliasedArg->name) {
$errors[] = "{$aliasFunc->name}(): Argument \$$aliasArg->name and argument \$$aliasedArg->name of aliased function {$aliasedFunc->name}() must have the same name";
return null;
}
if ($aliasArg->type != $aliasedArg->type) {
$errors[] = "{$aliasFunc->name}(): Argument \$$aliasArg->name and argument \$$aliasedArg->name of aliased function {$aliasedFunc->name}() must have the same type";
}
if ($aliasArg->defaultValue !== $aliasedArg->defaultValue) {
$errors[] = "{$aliasFunc->name}(): Argument \$$aliasArg->name and argument \$$aliasedArg->name of aliased function {$aliasedFunc->name}() must have the same default value";
}
},
$aliasArgs, $aliasedArgs
);
$aliasedReturn = $aliasedFunc->return;
$aliasReturn = $aliasFunc->return;
if (!$aliasedFunc->name->isConstructor() && !$aliasFunc->name->isConstructor()) {
$aliasedReturnType = $aliasedReturn->type ?? $aliasedReturn->phpDocType;
$aliasReturnType = $aliasReturn->type ?? $aliasReturn->phpDocType;
if ($aliasReturnType != $aliasedReturnType) {
$errors[] = "{$aliasFunc->name}() and {$aliasedFunc->name}() must have the same return type";
}
}
$aliasedPhpDocReturnType = $aliasedReturn->phpDocType;
$aliasPhpDocReturnType = $aliasReturn->phpDocType;
if ($aliasedPhpDocReturnType != $aliasPhpDocReturnType && $aliasedPhpDocReturnType != $aliasReturn->type && $aliasPhpDocReturnType != $aliasedReturn->type) {
$errors[] = "{$aliasFunc->name}() and {$aliasedFunc->name}() must have the same PHPDoc return type";
}
}
echo implode("\n", $errors);
if (!empty($errors)) {
echo "\n";
exit(1);
}
}
if ($generateClassSynopses) {
$classSynopsesDirectory = getcwd() . "/classsynopses";
$classSynopses = generateClassSynopses($classMap, $context->allConstInfos);
if (!empty($classSynopses)) {
if (!file_exists($classSynopsesDirectory)) {
mkdir($classSynopsesDirectory);
}
foreach ($classSynopses as $filename => $content) {
if (file_put_contents("$classSynopsesDirectory/$filename", $content)) {
echo "Saved $filename\n";
}
}
}
}
if ($replaceClassSynopses) {
$classSynopses = replaceClassSynopses($targetSynopses, $classMap, $context->allConstInfos, $verify);
foreach ($classSynopses as $filename => $content) {
if (file_put_contents($filename, $content)) {
echo "Saved $filename\n";
}
}
}
if ($generateMethodSynopses) {
$methodSynopsesDirectory = getcwd() . "/methodsynopses";
$methodSynopses = generateMethodSynopses($funcMap, $aliasMap);
if (!empty($methodSynopses)) {
if (!file_exists($methodSynopsesDirectory)) {
mkdir($methodSynopsesDirectory);
}
foreach ($methodSynopses as $filename => $content) {
if (file_put_contents("$methodSynopsesDirectory/$filename", $content)) {
echo "Saved $filename\n";
}
}
}
}
if ($replaceMethodSynopses) {
$methodSynopses = replaceMethodSynopses($targetSynopses, $funcMap, $aliasMap, $verify);
foreach ($methodSynopses as $filename => $content) {
if (file_put_contents($filename, $content)) {
echo "Saved $filename\n";
}
}
}
if ($generateOptimizerInfo) {
$filename = dirname(__FILE__, 2) . "/Zend/Optimizer/zend_func_infos.h";
$optimizerInfo = generateOptimizerInfo($funcMap);
if (file_put_contents($filename, $optimizerInfo)) {
echo "Saved $filename\n";
}
}