TypePHP 编译器 https://swoole.com/aot/
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<?php
/**
* This file is part of Swoole-Compiler(AOT).
*
* @link https://www.swoole.com/
* @contact service@swoole.com
*/
namespace PhpAot\Php;
use League\CLImate\CLImate;
use PhpAot\Php\Context\FunctionContext;
use PhpAot\Php\Entity\ClassDef;
use PhpAot\Php\Entity\ConstantDef;
use PhpAot\Php\Entity\FunctionDef;
use PhpAot\Php\Entity\InterfaceDef;
use PhpAot\Php\Entity\MethodDef;
use PhpAot\Php\Exception\DynamicCall;
use PhpAot\Php\Exception\PlaceHolder;
use PhpAot\Php\Exception\Redo;
use PhpAot\Php\Exception\Skip;
use PhpAot\Php\Exception\TestError;
use PhpAot\Php\Generator\ClosureGenerator;
use PhpAot\Php\Generator\PlaceHolderGenerator;
use PhpAot\Php\Generator\PropertyPromotion;
use PhpAot\Php\Generator\Utils;
use PhpParser\Modifiers;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\CallLike;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\FunctionLike;
use PhpParser\Node\NullableType;
use PhpParser\Node\Scalar\MagicConst;
use PhpParser\Node\Stmt\Foreach_;
use PhpParser\Node\UnionType;
use PhpParser\NodeAbstract;
use PhpParser\NodeFinder;
use PhpParser\Parser;
use PhpParser\ParserFactory;
use PhpParser\PrettyPrinter;
class CompilerBase extends \PhpAot\Core\Translator
{
use AstNodeType;
use FuncCallOptimizer;
use ClosureGenerator;
use PlaceHolderGenerator;
use PropertyPromotion;
use MagicMethodDetector;
use Utils;
public const string TYPE_VAR = 'php::Var';
public const string TYPE_BOOL = 'php::Bool';
public const string TYPE_INT = 'php::Int';
public const string TYPE_FLOAT = 'php::Float';
public const string TYPE_OBJECT = 'php::Object';
public const string TYPE_ARRAY = 'php::Array';
public const string TYPE_ARGS = 'php::Args';
public const string TYPE_STR = 'php::Str';
public const string TYPE_REF = 'php::Ref';
public const string TYPE_VOID = 'void';
public const int DECL_TYPE_OF_RETURN = 1;
public const int DECL_TYPE_OF_PROPERTY = 2;
public const int DECL_TYPE_OF_CONST = 3;
public const int DECL_TYPE_OF_PARAM = 4;
public const string VALUE_NAN = 'std::numeric_limits<double>::quiet_NaN()';
public const string VALUE_INF = 'std::numeric_limits<double>::infinity()';
public const string VALUE_NULL = 'php::null';
public const string LITERAL_STRINGS = '_literal_strings';
public const string ANON_CLASS = '_anon_class_';
public const string STATIC_VAR = '_static_var_';
public const string GLOBAL_VAR = '_global_var_';
public const string CLASS_MAP = 'class_map';
public const string FUNC_MAP = 'func_map';
public const string PROP_MAP = 'property_map';
public const string EXPR_VARIABLE = 'Expr_Variable';
public const string EXPR_NEW = 'Expr_New';
public const string EXPR_ARRAY_DIM_FETCH = 'Expr_ArrayDimFetch';
public const string EXPR_PROPERTY_FETCH = 'Expr_PropertyFetch';
public const string NAMESPACE_SEPARATOR = '__';
public const string PREFIX = 'php_';
public const string OP_ISSET = 'isset';
public const string OP_EMPTY = 'empty';
public const string OP_NOT_EMPTY = 'notEmpty';
public const string OP_REFVAL = 'toReference';
public const string OP_NOP = "if (0) {}\n";
protected string $phpxDir = '~/workspace/projects/phpx';
protected string $lang = 'PHP';
protected string $cppCompiler = 'g++';
protected array $literalStrings = [];
protected int $literalStringIndex = 0;
protected int $anonClassIndex = 0;
protected int $classIndex = 0;
/**
* @var array<string, int>
*/
protected array $classMap = [];
protected int $funcIndex = 0;
/**
* @var array<string, int>
*/
protected array $funcMap = [];
protected int $propIndex = 0;
protected array $propMap = [];
protected array $zendTypeMap = [
'int' => self::TYPE_INT,
'float' => self::TYPE_FLOAT,
'bool' => self::TYPE_BOOL,
'false' => self::TYPE_BOOL,
'true' => self::TYPE_BOOL,
'void' => self::TYPE_VOID,
'never' => self::TYPE_VOID,
'string' => self::TYPE_STR,
'array' => self::TYPE_ARRAY,
'object' => self::TYPE_OBJECT,
'mixed' => self::TYPE_VAR,
'null' => self::TYPE_VAR,
// callable 类型,可以是字符串、数组、对象
// 1) 'foo' 函数名称字符串, 2) [ $obj, 'bar' ] 对象方法数组, 3) Closure 对象, 4) [ 'class', 'staticMethod'] 类名+静态方法数组
'callable' => self::TYPE_VAR,
// iterable 类型,可以是数组或者对象
'iterable' => self::TYPE_VAR,
];
protected array $globalHeaders = [
'phpx.h',
'phpx_helper.h',
'phpx_func.h',
'php_func_decl.h',
'php_global_var_decl.h',
'php_aot_helper.h',
];
protected array $localHeaders = [];
protected array $internalFunctions = [];
protected array $internalConstants = [];
/**
* 存储所有函数、类方法的声明,key 是 符号名称,Value 是函数、类方法所在的文件名称
* @var array<string, string>
*/
protected array $symbolDeclInFile = [];
/**
* 存储所有函数、类方法的调用,key 是 文件名称,Value 是函数、类方法调用的列表数组
* @var array<string, array<string>>
*/
protected array $symbolCallInFile = [];
protected array $redoAfterDeclare = [];
protected array $constData = [];
protected int $optimizeLevel = 0;
protected int $maxJob = 4;
protected string $buildMode = 'bin';
protected string $cxxflags = '';
protected string $ldflags = '';
protected int $floatPrecision = 17;
protected bool $debugInfo = true;
protected bool $noLiteralStrings = false;
protected string $file;
protected string $dir;
/**
* 原始值,可能包含 `\\` 多层空间.
*/
protected string $namespace = '';
protected string $method = '';
protected string $function = '';
protected array $useNamespaces = [];
protected array $useAliases = [];
protected array $useFunctions = [];
/**
* 原始类名,不包含命名空间.
*/
protected string $class = '';
protected string $parentClass = '';
protected string $interface = '';
/**
* @var array<string, InterfaceDef>
*/
protected array $interfaces = [];
/**
* 存储所有函数、类方法的定义,key 是 native name,命名空间需要转为 `_`,并且必须为小写
* @var array<string, FunctionDef>
*/
protected array $functions = [];
/**
* key 类名,包含命名空间
* @var array<string, ClassDef>
*/
protected array $classes = [];
/**
* @var array<string, ConstantDef>
*/
protected array $constants = [];
/**
* @var array<string, ClassDef>
*/
protected array $classesDefineInFile = [];
/**
* @var array<string, InterfaceDef>
*/
protected array $interfacesDefineInFile = [];
/**
* @var array<string, FunctionDef>
*/
protected array $functionDefineInFile = [];
/**
* @var array<string>
*/
protected array $classCeList = [];
protected array $classCeInfo = [];
protected ?FunctionDef $functionDef = null;
protected ?ClassDef $classDef = null;
protected ?MethodDef $methodDef = null;
protected ?InterfaceDef $interfaceDef = null;
protected FunctionContext $context;
protected array $superGlobalVars = [
'_GET' => self::TYPE_ARRAY,
'_POST' => self::TYPE_ARRAY,
'_COOKIE' => self::TYPE_ARRAY,
'_SERVER' => self::TYPE_ARRAY,
'_FILES' => self::TYPE_ARRAY,
'_SESSION' => self::TYPE_ARRAY,
'_REQUEST' => self::TYPE_ARRAY,
];
protected array $globalVars = [];
protected bool $strictTypes = false;
protected bool $nativeTypes = false;
protected string $rootPath;
protected string $buildDir;
protected int $debugLine = 0;
protected CLImate $climate;
protected bool $stubFile = false;
protected bool $enableProfiler = false;
protected bool $forTest = false;
protected Parser $parser;
protected PrettyPrinter $printer;
/**
* 在预处理阶段获取所有类的方法名称,检测子类和父类中存在的同名方法,解决动态绑定方法调用的问题
* `static::methodCall()`
* `$this->methodCall()` 子类和父类中存在同名方法
* @var array<string, bool>
*/
protected array $classMethodOverride = [];
/**
* 存储所有类继承关系,类名必须全部为小写
* @var array<string, string>
*/
protected array $classExtends = [];
public function __construct(string $rootPath)
{
$this->rootPath = $rootPath;
$this->parser = (new ParserFactory())->createForNewestSupportedVersion();
$this->printer = new PrettyPrinter\Standard();
$this->setBuildDir($rootPath . '/build');
$climate = new CLImate();
$this->climate = $climate;
// $this->noLiteralStrings = $climate->arguments->get('no-literal-strings');
}
public function setPhpxDir($dir): void
{
$this->phpxDir = $dir;
}
public function save(string $code, string $file): void
{
$this->writeFile($file, $code);
$this->formatCppCode($file);
}
public function isScalarInt(Expr $position): bool
{
return $position instanceof Node\Scalar\LNumber;
}
public function getLine($node): int
{
return $node->getLine();
}
public function getType($node): string
{
return $node->getType();
}
public function getTypeFromZendType(string $type): string
{
return $this->zendTypeMap[$type] ?? self::TYPE_VAR;
}
public function isTypedObject(string $object): bool
{
return isset($this->context->objects[$object]);
}
public function getObjectType(string $object): string
{
return $this->context->objects[$object] ?? 'stdClass';
}
public function parseExpr(NodeAbstract $expr)
{
if ($expr->hasAttribute('replace')) {
return $expr->getAttribute('replace');
}
$type = $expr->getType();
$this->writeLog('Line ' . $this->getLine($expr) . ': ' . $type);
if ($expr->getLine() === $this->debugLine) {
dump($expr);
}
switch ($type) {
case 'Expr_Isset':
return $this->parseIsset($expr);
case 'Expr_Empty':
return $this->parseEmpty($expr);
case 'Expr_Assign':
return $this->parseAssign($expr);
case 'Expr_AssignRef':
return $this->parseAssignRef($expr);
case 'Expr_Print':
return $this->parsePrint($expr);
case 'Expr_BinaryOp_Equal':
return $this->parseBinaryOpEqual($expr);
case 'Expr_BinaryOp_NotEqual':
return $this->parseBinaryOpNotEqual($expr);
case 'Expr_BinaryOp_Identical':
return $this->parseBinaryOpIdentical($expr);
case 'Expr_BinaryOp_NotIdentical':
return $this->parseBinaryOpNotIdentical($expr);
case 'Expr_BooleanNot':
return $this->parseBooleanNot($expr);
case 'Expr_BinaryOp_Plus':
return $this->parseBinaryOpPlus($expr);
case 'Expr_BinaryOp_Div':
return $this->parseBinaryOpDiv($expr);
case 'Expr_BinaryOp_Smaller':
return $this->parseBinaryOpSmaller($expr);
case 'Expr_BinaryOp_SmallerOrEqual':
return $this->parseBinaryOpSmallerOrEqual($expr);
case 'Expr_BinaryOp_GreaterOrEqual':
return $this->parseBinaryOpGreaterOrEqual($expr);
case 'Expr_BinaryOp_Spaceship':
return $this->parseBinaryOpSpaceship($expr);
case 'Expr_BinaryOp_Coalesce':
return $this->parseBinaryOpCoalesce($expr);
case 'Expr_PreInc':
return $this->parsePreInc($expr);
case 'Expr_PostInc':
return $this->parsePostInc($expr);
case 'Expr_PreDec':
return $this->parsePreDec($expr);
case 'Expr_PostDec':
return $this->parsePostDec($expr);
case 'Expr_AssignOp_Plus':
return $this->parseAssignOpPlus($expr);
case 'Expr_AssignOp_Minus':
return $this->parseAssignOpMinus($expr);
case 'Expr_AssignOp_Mul':
return $this->parseAssignOpMul($expr);
case 'Expr_AssignOp_Div':
return $this->parseAssignOpDiv($expr);
case 'Expr_AssignOp_Mod':
return $this->parseAssignOpMod($expr);
case 'Expr_AssignOp_Concat':
return $this->parseAssignOpConcat($expr);
case 'Expr_AssignOp_ShiftRight':
return $this->parseAssignOpShiftRight($expr);
case 'Expr_AssignOp_BitwiseAnd':
return $this->parseAssignOpBitwiseAnd($expr);
case 'Expr_AssignOp_BitwiseXor':
return $this->parseAssignOpBitwiseXor($expr);
case 'Expr_AssignOp_Pow':
return $this->parseAssignOpPow($expr);
case 'Expr_AssignOp_Coalesce':
return $this->parseAssignOpCoalesce($expr);
case 'Expr_BinaryOp_Mul':
return $this->parseBinaryOpMul($expr);
case 'Expr_BinaryOp_Concat':
return $this->parseBinaryOpConcat($expr);
case 'Expr_BinaryOp_Greater':
return $this->parseBinaryOpGreater($expr);
case 'Expr_BinaryOp_LogicalAnd':
case 'Expr_BinaryOp_BooleanAnd':
return $this->parseBinaryOpLogicalAnd($expr);
case 'Expr_BinaryOp_LogicalOr':
case 'Expr_BinaryOp_BooleanOr':
return $this->parseBinaryOpLogicalOr($expr);
case 'Expr_BinaryOp_LogicalXor':
return $this->parseBinaryOpLogicalXor($expr);
case 'Expr_BinaryOp_Minus':
return $this->parseBinaryOpMinus($expr);
case 'Expr_Array':
return $this->parseArray($expr);
case self::EXPR_ARRAY_DIM_FETCH:
return $this->parseArrayDimFetch($expr, $this->context->inAssignExpr);
case self::EXPR_PROPERTY_FETCH:
return $this->parsePropertyFetch($expr, $this->context->inAssignExpr);
case 'Expr_NullsafePropertyFetch':
return $this->parseNullsafePropertyFetch($expr);
case 'Expr_NullsafeMethodCall':
return $this->parseNullsafeMethodCall($expr);
case 'Expr_BinaryOp_ShiftLeft':
return $this->parseBinaryOpShiftLeft($expr);
case 'Expr_BinaryOp_ShiftRight':
return $this->parseBinaryOpShiftRight($expr);
case 'Expr_BinaryOp_BitwiseAnd':
return $this->parseBinaryOpBitwiseAnd($expr);
case 'Expr_BinaryOp_BitwiseOr':
return $this->parseBinaryOpBitwiseOr($expr);
case 'Expr_BinaryOp_BitwiseXor':
return $this->parseBinaryOpBitwiseXor($expr);
case 'Expr_BitwiseNot':
return $this->parseBitwiseNot($expr);
case 'Expr_BinaryOp_Mod':
return $this->parseBinaryOpMod($expr);
case 'Expr_BinaryOp_Pow':
return $this->parseBinaryOpPow($expr);
case 'Expr_Ternary':
return $this->parseTernary($expr);
case 'Expr_Match':
return $this->parseMatch($expr);
case 'Expr_FuncCall':
return $this->parseFuncCall($expr);
case 'Expr_MethodCall':
return $this->parseMethodCall($expr);
case 'Expr_StaticCall':
return $this->parseStaticCall($expr);
case 'Expr_StaticPropertyFetch':
return $this->parseStaticPropertyFetch($expr);
case 'Expr_ClassConstFetch':
return $this->parseClassConstFetch($expr);
case 'Expr_Include':
return $this->parseInclude($expr);
case 'Expr_Eval':
return $this->parseEval($expr);
case 'Expr_New':
return $this->parseNew($expr);
case 'Expr_Clone':
return $this->parseClone($expr);
case 'Expr_Instanceof':
return $this->parseInstanceof($expr);
case 'Expr_Throw':
return $this->parseThrow($expr);
case 'Expr_ShellExec':
return $this->parseShellExec($expr);
case 'Expr_Closure':
return $this->parseClosure($expr);
case 'Expr_ArrowFunction':
return $this->parseArrowFunction($expr);
case 'Name_FullyQualified':
return $this->parseFullyQualifiedName($expr);
case 'Scalar_Int':
case 'Scalar_Float':
case 'Scalar_String':
case self::EXPR_VARIABLE:
return $this->parseIdentifier($expr);
case 'Scalar_MagicConst_File':
case 'Scalar_MagicConst_Dir':
case 'Scalar_MagicConst_Line':
case 'Scalar_MagicConst_Function':
case 'Scalar_MagicConst_Method':
case 'Scalar_MagicConst_Class':
return $this->parseMagicConst($expr);
case 'Scalar_InterpolatedString':
return $this->parseInterpolatedString($expr);
case 'Expr_Cast_Int':
return $this->parseCastInt($expr);
case 'Expr_Cast_Double':
return $this->parseCastDouble($expr);
case 'Expr_Cast_Bool':
return $this->parseCastBool($expr);
case 'Expr_Cast_String':
return $this->parseCastString($expr);
case 'Expr_Cast_Array':
return $this->parseCastArray($expr);
case 'Expr_Cast_Object':
return $this->parseCastObject($expr);
case 'Expr_ConstFetch':
return $this->parseConstFetch($expr);
case 'Expr_UnaryMinus':
return $this->parseUnaryMinus($expr);
case 'Expr_UnaryPlus':
return $this->parseUnaryPlus($expr);
case 'InterpolatedStringPart':
return $this->parseInterpolatedStringPart($expr);
case 'Expr_ErrorSuppress':
return $this->parseErrorSuppress($expr);
case 'Expr_Exit':
return $this->parseExit($expr);
case 'Expr_Yield':
case 'Expr_YieldFrom':
$this->fatalError($expr, 'The `' . $type . '` is not supported');
// no break
default:
abort($expr);
}
}
public function stop(string $string): never
{
$this->climate->red($string . "\n");
exit(1);
}
public function genTmpVarName(): string
{
return 'tmp_var_' . $this->context->tmpVarIndex++;
}
public function genAnonClassName(): string
{
return self::ANON_CLASS . $this->anonClassIndex++;
}
public function writeFile(string $file, string $content): void
{
$dir = dirname($file);
if (!is_dir($dir)) {
mkdir($dir, 0777, true);
}
if (!file_put_contents($file, $content)) {
throw new \RuntimeException('Can not write file: ' . $file);
}
}
public function getIncludeDir(): string
{
return $this->getBuildDir() . '/include';
}
public function getBuildDir(): string
{
return $this->buildDir;
}
protected function isSuperGlobal(string $var): bool
{
if (isset($this->superGlobalVars[$var])) {
return true;
}
return false;
}
public function getRelativePath($path, $cwd = ''): string
{
$cwd = $cwd ?: getcwd();
return ltrim($this->removeCommonPrefix($cwd, $path), '/');
}
protected function removeCommonPrefix(string $short, string $long): string
{
$len = min(strlen($short), strlen($long));
$prefixLen = 0;
for ($i = 0; $i < $len; $i++) {
if ($short[$i] === $long[$i]) {
$prefixLen++;
} else {
break;
}
}
return substr($long, $prefixLen);
}
protected function getVarType(string $name): string
{
if ($this->hasLocalVar($name)) {
return $this->context->localVars[$name];
}
if ($this->hasLocalVar($name)) {
return $this->globalVars[$name];
}
return self::TYPE_VAR;
}
protected function resetFunction(): void
{
$this->context = new FunctionContext();
$this->function = '';
$this->functionDef = null;
}
protected function resetMethod(): void
{
$this->method = '';
$this->methodDef = null;
}
protected function resetClass(): void
{
$this->class = '';
$this->interface = '';
$this->classDef = null;
}
protected function resetFile(): void
{
$this->indentLevel = 0;
$this->strictTypes = false;
$this->nativeTypes = false;
$this->classesDefineInFile = [];
$this->interfacesDefineInFile = [];
$this->functionDefineInFile = [];
}
protected function resetNamespace(): void
{
$this->useNamespaces = [];
$this->useAliases = [];
$this->useFunctions = [];
$this->namespace = '';
}
protected function getFunctionName(FunctionLike $v): string
{
return $this->getNativeName($this->parseIdentifier($v->name), $this->namespace, $this->class);
}
protected function getFullClassName(): string
{
return ltrim($this->namespace . '\\' . $this->class, '\\');
}
protected function getNamespacedClassName(string $class): string
{
if ($class === '') {
$this->error('Class name can not be empty');
}
if ($class[0] === '\\') {
return ltrim($class, '\\');
}
$ns2 = explode('\\', trim($class, '\\'));
if (isset($this->useAliases[$ns2[0]])) {
$ns = '\\' . $this->useAliases[$ns2[0]];
_return:
if (count($ns2) > 1) {
$ns .= '\\' . implode('\\', array_slice($ns2, 1));
}
return ltrim($ns, '\\');
}
foreach ($this->useNamespaces as $useNamespace) {
$ns1 = explode('\\', trim($useNamespace, '\\'));
if (strcasecmp($ns1[array_key_last($ns1)], $ns2[0]) === 0) {
$ns = '\\' . implode('\\', $ns1);
goto _return;
}
}
$currentNamespace = $this->namespace;
if (!empty($currentNamespace)) {
return trim($currentNamespace, '\\') . '\\' . $class;
}
return $class;
}
protected function getNativeName(string $fn, string $ns = '', string $class = ''): string
{
$names = [];
if ($ns) {
$names[] = $this->escapeNamespace($ns);
}
if ($class) {
$names[] = $this->escapeClass($class);
}
if ($fn) {
$names[] = $this->escapeName($fn);
}
return implode(self::NAMESPACE_SEPARATOR, $names);
}
protected function getClassId(string $className): int
{
if (isset($this->classMap[$className])) {
$id = $this->classMap[$className];
} else {
$id = $this->classIndex++;
$this->classMap[$className] = $id;
}
return $id;
}
protected function getFuncId(string $funcName): int
{
if (isset($this->funcMap[$funcName])) {
$id = $this->funcMap[$funcName];
} else {
$id = $this->funcIndex++;
$this->funcMap[$funcName] = $id;
}
return $id;
}
/**
* @param string $className 必须是带有命名空间的完整类名
*/
protected function getPropertyId(string $className, string $propName): int
{
$key = $className . '::' . $propName;
if (isset($this->propMap[$key])) {
$id = $this->propMap[$key];
} else {
$id = $this->propIndex++;
$this->propMap[$key] = $id;
}
return $id;
}
protected function getClassEntryPtr(string $className): string
{
$id = $this->getClassId($className);
return 'php_get_class(' . $id . ', ' . $this->getLiteralString($className) . ')';
}
protected function getCeWrapper(string $className): string
{
if (isset($this->context->ceWrappers[$className])) {
return $this->context->ceWrappers[$className];
}
$object = $this->addTmpVar(self::TYPE_OBJECT);
$this->context->beforeStmtLines[] = 'Z_PTR_P(' . $object . '.ptr()) = ' . $this->getClassEntryPtr($className) . ';';
$this->context->ceWrappers[$className] = $object;
return $object;
}
protected function getFuncPtr(string $funcName): string
{
return 'php_get_func(' . $this->getFuncId($funcName) . ', ' . $this->getLiteralString($funcName) . ')';
}
protected function getMethodPtr(string $class, string $method): string
{
$funcId = $this->getFuncId($class . '::' . $method);
$classId = $this->getClassId($class);
return 'php_get_method(' . $funcId . ', ' . $this->getLiteralString($method) . ', ' . $classId . ', ' . $this->getLiteralString($class) . ')';
}
protected function getPropertyOffset(string $class, string $prop): string
{
$funcId = $this->getPropertyId($class, $prop);
$classId = $this->getClassId($class);
return 'php_get_prop(' . $funcId . ', ' . $this->getLiteralString($prop) . ', ' . $classId . ', ' . $this->getLiteralString($class) . ')';
}
protected function parseTypeDecl(?NodeAbstract $type, int $what, string &$class): string
{
// 未定义类型视为 var (mixed, any)
if ($type === null) {
return self::TYPE_VAR;
}
if ($type instanceof UnionType or $type instanceof NullableType) {
// 联合类型暂时不支持,使用 var 类型代替
return self::TYPE_VAR;
} else {
$typeName = $this->parseIdentifier($type);
// 属性和类常量的类型不能声明为 void/never ,只有返回值可以
if ($what !== self::DECL_TYPE_OF_RETURN and ($typeName === 'void' or $typeName === 'never')) {
$this->fatalError($type, 'The type `void`/`never` is allowed only for return type');
} elseif (isset($this->zendTypeMap[$typeName])) {
return $this->getTypeFromZendType($typeName);
} else {
$class = $this->getNamespacedClassName($typeName);
return self::TYPE_OBJECT;
}
}
}
/**
* @throws \Exception
*/
protected function parseFunction(Node\Stmt\Function_|Node\Stmt\ClassMethod $v): string
{
$this->resetFunction();
$name = $this->getFunctionName($v);
$this->function = $this->parseIdentifier($v->name);
if (!$this->hasFunction($name)) {
$this->fatalError($v, 'Function `' . $name . '` not found');
}
$this->functionDef = $this->getFunction($name);
// 类方法不要保存到 functions 中
if ($this->methodDef) {
$this->methodDef->functionDef = $this->functionDef;
} else {
$this->functionDefineInFile[$name] = $this->functionDef;
}
// stub 函数,没有函数的具体实现,只有声明,实现在 C++ 或者 .so 中定义
if ($this->functionDef->stub) {
$this->resetFunction();
return '';
}
if ($this->class) {
$this->addArgument('this_', self::TYPE_OBJECT);
}
foreach ($this->functionDef->argInfoList as $argInfo) {
$this->addArgument($argInfo->name, $argInfo->type);
}
$stmts = '';
if ($v->stmts) {
$this->indentLevel++;
try {
$stmts = $this->parseStmts($v->stmts);
if (!$this->isReturnStmtInLastLine($v->stmts)) {
$stmts .= $this->genReturnCode();
}
} catch (Skip) {
$this->climate->cyan('Skip function ' . $name);
}
$this->indentLevel--;
} else {
$stmts = $this->genReturnCode();
}
$functionDeclCode = $this->getReturnType() . ' ' . self::PREFIX . $name . '(';
if ($this->class) {
$functionDeclCode .= self::TYPE_OBJECT . ' &this_';
if ($this->functionDef->params) {
$functionDeclCode .= ', ';
}
}
$functionDeclCode .= $this->functionDef->params . ')';
$code = $functionDeclCode . ' {' . PHP_EOL;
$this->indentLevel++;
$code .= $this->genScopeVarDecl();
$code .= "\n";
// Constructor Property Promotion
foreach ($this->functionDef->argInfoList as $argInfo) {
if (!$argInfo->property) {
continue;
}
$code .= $this->genPropertyPromotion($argInfo);
}
$this->indentLevel--;
$code .= $this->genDebugInfo();
// 函数中存在动态调用的函数,需要在运行时动态切换作用域
if ($this->methodDef and $this->methodDef->hasDynamicCall) {
$code .= $this->genScopeSwitchCode();
}
$code .= $stmts;
$code .= "}\n";
$this->resetFunction();
return $code;
}
protected function writeLog($msg): void
{
if ($this->verbose) {
echo $msg . PHP_EOL;
}
}
protected function getLiteralString(string $string): string
{
if ($this->noLiteralStrings) {
return '"' . $this->escapeString($string) . '"';
}
$index = $this->literalStrings[$string] ?? $this->addLiteralString($string);
return self::LITERAL_STRINGS . '[' . $index . ']';
}
protected function parseScalar(Node\Scalar $expr): string
{
$type = $expr->getType();
switch ($type) {
case 'Scalar_Int':
return $expr->value . 'L';
case 'Scalar_Float':
return $this->parseScalarFloat($expr);
case 'Scalar_String':
return $this->getLiteralString($expr->value);
default:
abort($expr);
}
}
protected function parseSuperGlobalVar(string $name): string
{
if (!$this->hasGlobalVar($name)) {
$this->addGlobalVar($name, $this->superGlobalVars[$name]);
}
if (!$this->hasScopeGlobalVar($name)) {
$this->addScopeGlobalVar($name, $this->superGlobalVars[$name]);
}
return $name;
}
protected function parseVariable(Variable $expr): string
{
if (is_object($expr->name) and $this->isVarExpr($expr->name)) {
$this->fatalError($expr, 'The `$$` syntax is not supported');
}
if ($this->isSuperGlobal($expr->name)) {
return $this->parseSuperGlobalVar($expr->name);
}
return $this->escapeVarName($expr->name);
}
protected function parseImplements(array $implements): array
{
$list = [];
foreach ($implements as $implement) {
$list[] = $this->getNamespacedClassName($implement);
}
return $list;
}
protected function parseIdentifier(NodeAbstract $expr): string
{
$type = $expr->getType();
switch ($type) {
case self::EXPR_VARIABLE:
return $this->parseVariable($expr);
case 'Name':
case 'Name_FullyQualified':
case 'VarLikeIdentifier':
case 'Identifier':
return $expr->name;
case 'Scalar_Int':
case 'Scalar_Float':
case 'Scalar_String':
return $this->parseScalar($expr);
case 'Expr_ConstFetch':
return $this->parseConstFetch($expr);
case 'Expr_Assign':
case 'Expr_AssignRef':
if (!$this->isVarExpr($expr->var)) {
$this->fatalError($expr, 'When an assignment expression serves as an rvalue, it must be an assignment of a variable');
}
return $this->parseExpr($expr);
default:
return $this->parseExpr($expr);
}
}
protected function parseParamDefaultValue(?NodeAbstract $default): ?string
{
if (!$default) {
return null;
}
/*
* 函数参数默认值只能为字面量,无法使用表达式获取值
*/
if ($default instanceof Expr\ConstFetch) {
return $this->parseConstFetch($default, true);
} else {
return $this->parseIdentifier($default);
}
}
protected function getComment(Node\Stmt $v, string $class): string
{
if ($class == 'Stmt_Expression') {
$class = 'Stmt_Expression(' . $v->expr->getType() . ')';
}
return $this->getIndent() . '// ' . $class . ' [' . $v->getStartLine() . ':' . $v->getEndLine() . ']';
}
/**
* 在 for/foreach 等包含子语句的语句,之前检查当前待添加的代码是否为空,
* 如果不为空,需要将语句追加到 {} 作用域符号之前.
*/
protected function parseBeforeStmtLines(): string
{
if ($this->context->beforeStmtLines) {
$code = implode(PHP_EOL, $this->context->beforeStmtLines);
$this->context->beforeStmtLines = [];
return $code . PHP_EOL;
}
return '';
}
protected function parseAfterStmtLines(): string
{
if ($this->context->afterStmtLines) {
$code = implode(PHP_EOL, $this->context->afterStmtLines);
$this->context->afterStmtLines = [];
return $code . PHP_EOL;
}
return '';
}
protected function parseStmts(array $stmts): string
{
$lines = [];
$inLoopTop = $this->context->inLoop;
$last = array_key_last($stmts);
foreach ($stmts as $i => $v) {
$class = $v->getType();
$this->context->beforeStmtLines = [];
$this->context->afterStmtLines = [];
$result = '';
$this->writeLog('Line ' . $this->getLine($v) . ': ' . $class);
$lines[] = $this->genDebugInfo($v);
$lines[] = $this->getComment($v, $class);
switch ($class) {
case 'Stmt_Expression':
$result = $this->parseExpr($v->expr) . ';';
break;
case 'Stmt_Echo':
$result = $this->parseEcho($v);
break;
case 'Stmt_Return':
$result = $this->parseReturn($v);
break;
case 'Stmt_For':
$this->context->inLoop = true;
$result = $this->parseFor($v);
$this->context->inLoop = $inLoopTop;
break;
case 'Stmt_Foreach':
$this->context->inLoop = true;
$result = $this->parseForeach($v);
$this->context->inLoop = $inLoopTop;
break;
case 'Stmt_Switch':
$this->context->inLoop = true;
$result = $this->parseSwitch($v);
$this->context->inLoop = $inLoopTop;
break;
case 'Stmt_While':
$this->context->inLoop = true;
$result = $this->parseWhile($v);
$this->context->inLoop = $inLoopTop;
break;
case 'Stmt_Do':
$this->context->inLoop = true;
$result = $this->parseDo($v);
$this->context->inLoop = $inLoopTop;
break;
case 'Stmt_If':
$result = $this->parseIf($v);
break;
case 'Stmt_Break':
$result = $this->parseBreak($v);
break;
case 'Stmt_Goto':
$result = $this->parseGoto($v);
break;
case 'Stmt_Label':
$result = $this->parseLabel($v);
if ($i === $last) {
$result .= self::OP_NOP;
}
break;
case 'Stmt_Continue':
$result = $this->parseContinue($v);
break;
case 'Stmt_Nop':
break;
case 'Stmt_Global':
$result = $this->parseGlobal($v);
break;
case 'Stmt_Enum':
$result = $this->parseEnum($v);
break;
case 'Stmt_Static':
$result = $this->parseStatic($v);
break;
case 'Stmt_Unset':
$result = $this->parseUnset($v);
break;
case 'Stmt_TryCatch':
$result = $this->parseTryCatch($v);
break;
case 'Stmt_Class':
$this->fatalError($v, 'Cannot declare class in function');
// no break
default:
abort($v);
}
$lines = array_merge($lines, $this->context->beforeStmtLines);
$this->context->beforeStmtLines = [];
if ($result) {
$lines[] = $result;
}
if ($this->context->afterStmtLines) {
$lines = array_merge($lines, $this->context->afterStmtLines);
$this->context->afterStmtLines = [];
}
}
$code = '';
foreach ($lines as $line) {
$code .= $this->getIndent() . $line . PHP_EOL;
}
return $code;
}
protected function parseAssignArrayDim(NodeAbstract $left, NodeAbstract $right): string
{
if ($this->isPropertyFetch($left)) {
return $this->parseAssignPropertyArrayDim($left, $right);
}
$oriInAssignExpr = $this->context->inAssignExpr;
$this->context->inAssignExpr = true;
$array = $this->parseIdentifier($left->var);
$this->context->inAssignExpr = $oriInAssignExpr;
$code = '';
// 这是 PHP 的初始化+赋值写法,需要先创建数组
if (!$this->hasVar($array) and $this->isVarExpr($left->var)) {
$this->addLocalVar($array, self::TYPE_ARRAY);
}
$value = $this->trimBrackets($this->parseExpr($right));
if ($left->dim === null) {
return $code . "{$array}.offsetSet(" . self::VALUE_NULL . ", {$value})";
}
$dim = $this->trimBrackets($this->parseIdentifier($left->dim));
return $code . "{$array}.offsetSet({$dim}, {$value})";
}
protected function parseAssignPropertyFetch(NodeAbstract $left, NodeAbstract $right): string
{
$array = $this->parseIdentifier($left->var);
$propName = $this->identifierToStr($left->name, literal: true);
return "{$array}.setProperty({$propName}, " . $this->trimBrackets($this->parseExpr($right)) . ')';
}
protected function parseRightAssociativeAssign(NodeAbstract $left, Expr\Assign $right): string
{
$chain[] = $left;
$next = $right;
while ($this->isAssignExpr($next)) {
$var = $next->var;
$chain[] = $var;
$next = $next->expr;
}
$tmpVar = $this->genTmpVarName();
$this->addLocalVar($tmpVar, self::TYPE_VAR);
// 翻转赋值链
$chain = array_reverse($chain);
$list = [];
$list[] = $this->getIndent() . $tmpVar . ' = ' . $this->parseExpr($next);
$right = new Variable($tmpVar);
foreach ($chain as $var) {
$list[] = $this->getIndent() . $this->parseAssignFinally($var, $right);
}
return implode(";\n" . $this->getIndent(), $list);
}
protected function parseAssignStaticProperty($left, $right): string
{
$value = $this->trimBrackets($this->parseExpr($right));
$native = $this->parseNativeStaticPropertyFetch($left);
if ($native) {
return $native . ' = ' . $value;
}
$class = $this->identifierToStr($left->class);
$propName = $this->identifierToStr($left->name);
return "php::setStaticProperty({$class}, {$propName}, {$value})";
}
protected function parseAssign(Expr\Assign $v): string
{
$left = $v->var;
$right = $v->expr;
if ($this->isAssignExpr($right)) {
return $this->parseRightAssociativeAssign($left, $right);
}
return $this->parseAssignFinally($left, $right);
}
protected function parseAssignToList(Expr $left, Expr $right): string
{
$items = $left->items;
$code = '{';
$this->indentLevel++;
$tmpVar = $this->genTmpVarName();
$this->addLocalVar($tmpVar, self::TYPE_VAR);
$code .= $this->getIndent() . $tmpVar . ' = ' . $this->parseExpr($right) . '; ';
foreach ($items as $k => $item) {
if (!$item) {
continue;
}
if ($item instanceof Expr\ArrayItem) {
$oriInAssignExpr = $this->context->inAssignExpr;
$this->context->inAssignExpr = true;
$var = $this->parseIdentifier($item->value);
$this->context->inAssignExpr = $oriInAssignExpr;
if ($this->isVarExpr($item->value) and !$this->hasVar($var)) {
$this->addLocalVar($var, self::TYPE_VAR);
}
$code .= "{$var} = {$tmpVar}.item({$k}); ";
} else {
abort($item);
}
}
$this->indentLevel--;
return $code . '}';
}
protected function parseAssignFinally(Expr $left, Expr $right): string
{
if ($left instanceof Expr\List_) {
return $this->parseAssignToList($left, $right);
}
$oriInAssignExpr = $this->context->inAssignExpr;
$this->context->inAssignExpr = true;
$var = $this->parseIdentifier($left);
$this->context->inAssignExpr = $oriInAssignExpr;
if ($var === 'this_') {
$this->fatalError($left, 'Cannot re-assign $this');
}
$expr = $this->parseExpr($right);
$type = $this->detectExprType($right);
if ($this->isVarExpr($left)) {
// 类型推断,获取对象的类名
if ($this->isNewExpr($right) and $this->isNameExpr($right->class)) {
$class = $this->parseIdentifier($right->class);
$fullClass = $this->getNamespacedClassName($class);
if ($this->isTypedObject($var)) {
$leftClass = $this->getObjectType($var);
if ($leftClass !== $fullClass) {
$this->fatalError($left, "Cannot re-assign typed object `\${$var}` from `{$leftClass}` to `{$fullClass}`");
}
}
$this->addObject($var, $fullClass);
$type = self::TYPE_OBJECT;
} elseif ($this->isFuncCallExpr($right) and $this->isNameExpr($right->name)) {
$fn = $this->parseIdentifier($right->name);
if (count($right->args) === 2 and $fn === 'objval' and $this->isScalarString($right->args[1]->value)) {
$fullClass = $this->getNamespacedClassName($this->parseIdentifier($right->args[1]->value));
if ($this->isTypedObject($var)) {
$leftClass = $this->getObjectType($var);
$this->fatalError($left, "Cannot re-assign typed object `\${$var}` from `{$leftClass}` to `{$fullClass}`");
}
$this->addObject($var, $fullClass);
$type = self::TYPE_OBJECT;
} elseif (count($right->args) === 1 and $fn === 'any') {
$type = self::TYPE_VAR;
if (!$this->hasVar($var)) {
$this->addLocalVar($var, $type);
}
return $var . ' = ' . $this->parseIdentifier($right->args[0]->value);
} else {
$type = $type === self::TYPE_VOID ? self::TYPE_VAR : $type;
}
} elseif ($this->isStaticCall($right) and $this->isIdExpr($right->name)) {
$class = $this->parseIdentifier($right->class);
if ($class === 'std') {
$func = $this->parseIdentifier($right->name);
$type = match ($func) {
'int' => self::TYPE_INT,
'float' => self::TYPE_FLOAT,
'bool' => self::TYPE_BOOL,
default => '',
};
// Native 类型
if ($type) {
if (!$this->hasVar($var)) {
$this->addLocalVar($var, $type);
}
$expr = $this->parseExpr($right->args[0]->value);
return $var . ' = ' . $this->convertExprFromType($type, $expr);
}
}
} elseif ($this->isVarExpr($right)) {
$rightVar = $this->parseIdentifier($right);
$type = $this->getVarType($rightVar);
if ($this->isTypedObject($rightVar) and $this->isTypedObject($var)) {
$leftClass = $this->getObjectType($var);
$rightClass = $this->getObjectType($rightVar);
$this->fatalError($left, "Cannot re-assign typed object `\${$var}` from `{$leftClass}` to `{$rightClass}`");
}
}
if (!$this->hasVar($var)) {
$this->addLocalVar($var, $type);
} elseif ($this->getVarType($var) !== self::TYPE_VAR and $this->isTypedObject($var) and $type !== self::TYPE_OBJECT) {
$this->fatalError($left, "Cannot re-assign variable `\${$var}` from " . $this->getVarType($var) . ' to ' . $type);
}
} elseif ($this->isPropertyFetch($left) and !$left->getAttribute('nativeProperty')) {
return $this->parseAssignPropertyFetch($left, $right);
} elseif ($this->isArrayDimFetch($left) and $this->isVarExpr($left->var)) {
$tmp = $this->parseIdentifier($left->var);
if ($this->getVarType($tmp) === self::TYPE_STR and $left->dim === null) {
$this->fatalError($left, 'Cannot use [] for strings');
}
return $this->parseAssignArrayDim($left, $right);
}
return $var . ' = ' . $this->convertExprType($expr, $this->detectExprType($left), $this->detectExprType($right));
}
protected function parseEcho(mixed $v): string
{
$lines = [];
foreach ($v->exprs as $expr) {
if ($expr instanceof Expr\Assign) {
$this->fatalError($expr, 'Cannot echo assign expression');
} else {
$lines[] = 'php::echo(' . $this->parseExpr($expr) . ');';
}
}
return implode("\n" . $this->getIndent(), $lines);
}
protected function isFloatStr(string $str): bool
{
return filter_var($str, FILTER_VALIDATE_FLOAT) !== false;
}
protected function isIntStr(string $str): bool
{
return filter_var($str, FILTER_VALIDATE_INT) !== false;
}
protected function isBoolStr(string $str): bool
{
return $str === 'true' || $str === 'false';
}
protected function isNativeType(string $type): bool
{
return in_array($type, [self::TYPE_INT, self::TYPE_FLOAT, self::TYPE_BOOL]);
}
protected function isNativeTypeVar(string $var): bool
{
return $this->isNativeType($this->getVarType($var));
}
protected function isInternalFunction(string $name): bool
{
return array_key_exists($name, $this->internalFunctions);
}
protected function isInternalClass(string $name): bool
{
return Reflection::isInternalClass($name);
}
protected function isInternalInterface(string $name): bool
{
return Reflection::isInternalInterface($name);
}
protected function isInternalConstant(string $name): bool
{
return array_key_exists($name, $this->internalConstants);
}
protected function isAssignOpConcat(string $op): bool
{
return $op === '.=';
}
protected function isAssignOpPow(string $op): bool
{
return $op === '**=';
}
/**
* 尽可能转为数字,优先级 浮点 > 整数 > 字符串.
*/
protected function parseNumericIdentifier(NodeAbstract $expr): float|int|string
{
if ($expr->getType() === 'Scalar_String') {
if ($this->isFloatStr($expr->value)) {
return floatval($expr->value);
}
if ($this->isIntStr($expr->value)) {
return intval($expr->value);
}
if ($expr->value === '0') {
return 0;
}
}
return $this->parseIdentifier($expr);
}
protected function parseBinaryOp(NodeAbstract $left, NodeAbstract $right, string $op): string
{
// 运算逻辑,优先转为数字
$leftExpr = $this->parseNumericIdentifier($left);
$rightExpr = $this->parseNumericIdentifier($right);
$this->checkVarMustExist($left, $leftExpr);
$this->checkVarMustExist($right, $rightExpr);
$leftType = $this->detectExprType($left);
$rightType = $this->detectExprType($right);
if ($leftType === self::TYPE_FLOAT) {
$rightExpr = $this->convertExprType($rightExpr, self::TYPE_FLOAT, $rightType);
} elseif ($rightType === self::TYPE_FLOAT) {
$leftExpr = $this->convertExprType($leftExpr, $leftType, self::TYPE_FLOAT);
} elseif ($leftType === self::TYPE_INT) {
$rightExpr = $this->convertExprType($rightExpr, self::TYPE_INT, $rightType);
} elseif ($rightType === self::TYPE_INT) {
$leftExpr = $this->convertExprType($leftExpr, $leftType, self::TYPE_INT);
}
if ($op === '%' and !($leftType === self::TYPE_INT and $rightType === self::TYPE_INT)) {
return 'php::math::mod(' . $leftExpr . ', ' . $rightExpr . ')';
}
return '((' . $leftExpr . ') ' . $op . ' (' . $rightExpr . '))';
}
protected function parseBinaryOpPlus(Expr\BinaryOp\Plus $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '+');
}
protected function parseReturn(Node\Stmt\Return_ $v): string
{
if ($v->expr === null) {
if ($this->functionDef->returnType === self::TYPE_VOID and !$this->context->inClosure) {
return 'return;';
} else {
return 'return ' . self::VALUE_NULL . ';';
}
}
// 实际函数的返回值
$type = $this->detectExprType($v->expr);
$expr = $this->parseExpr($v->expr);
$returnType = $this->getReturnType();
// 匿名函数的返回值一定是 var
if (!$this->context->inClosure) {
if ($returnType === 'void') {
$this->fatalError($v, 'The return type is void, cannot return any value');
}
} else {
$returnType = self::TYPE_VAR;
}
$exprCode = $this->convertExprType($expr, $returnType, $type);
// return 如果使用了 Indirect 语句,可能会导致变量提前析构,出现悬空指针
// 将 Indirect 赋值给临时变量后,使用 Ctor::Copy 解除了 Indirect,保证内存安全
if (!$this->isVarExpr($v->expr) and !$this->isScalar($v->expr)) {
$tmpVar = $this->genTmpVarName();
// 必须提前声明变量,否则在末尾声明并 return 可能会被 gcc 优化掉
$this->addLocalVar($tmpVar, $returnType);
$code = $tmpVar . ' = ' . $exprCode . ';' . PHP_EOL;
// 解析表达式后可能会插入语句,因此需要在末尾添加 return 语句,而不是直接返回
$this->context->afterStmtLines[] = $this->getIndent() . 'return ' . $tmpVar . ';';
} else {
$code = 'return ' . $exprCode . ';';
}
return $code;
}
protected function parseBinaryOpMul(Expr\BinaryOp\Mul $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '*');
}
protected function addLocalVar(string $name, string $type): void
{
$this->context->localVars[$name] = $type;
}
protected function addTmpVar(string $type): string
{
$var = $this->genTmpVarName();
$this->addLocalVar($var, $type);
return $var;
}
protected function addStaticVar(Variable $var, string $name, string $type): string
{
if ($this->hasVar($name)) {
$this->fatalError($var, 'Duplicate variable `$' . $var->name . '`');
}
$this->context->staticVars[$name] = $type;
// 静态变量实际上是一个全局变量的引用
$globalVar = $this->escapeStaticVar($name);
$this->addGlobalVar($globalVar, $type);
return $globalVar;
}
protected function hasArgument(string $name): bool
{
return isset($this->context->arguments[$name]);
}
protected function addArgument(string $name, string $type): void
{
$this->context->arguments[$name] = $type;
$this->addLocalVar($name, $type);
}
protected function addLiteralString(string $value): int
{
$index = $this->literalStringIndex++;
$this->literalStrings[$value] = $index;
return $index;
}
protected function addGlobalVar(string $name, string $type): void
{
$this->globalVars[$name] = $type;
}
protected function addScopeGlobalVar(string $name, string $type): void
{
$this->context->globalVars[$name] = $type;
}
protected function addObject(string $name, string $class): void
{
$this->context->objects[$name] = $class;
}
protected function hasVar(string $name): bool
{
return $this->hasLocalVar($name) || $this->hasStaticVar($name) || $this->hasScopeGlobalVar($name) || $this->isSuperGlobal($name);
}
protected function hasLocalVar(string $name): bool
{
return isset($this->context->localVars[$name]);
}
protected function addFunction(string $name, FunctionDef $functionDef): void
{
$this->functions[$this->escapeFunction($name)] = $functionDef;
}
/**
* @param string $name 必须传入带有完整命名空间的类名,将会自动转义为 native name
*/
protected function hasFunction(string $name): bool
{
return array_key_exists($this->escapeFunction($name), $this->functions);
}
protected function getFunction(string $name): FunctionDef
{
return $this->functions[$this->escapeFunction($name)];
}
protected function addClass(string $name, ClassDef $classDef): void
{
$this->classes[$this->escapeClass($name)] = $classDef;
}
protected function getClass(string $name): ClassDef
{
return $this->classes[$this->escapeClass($name)];
}
protected function hasClass(string $name): bool
{
return array_key_exists($this->escapeClass($name), $this->classes);
}
protected function checkFunction(string $name): void
{
// 在预处理阶段检测到函数声明,但是未定义,说明在当前文件,但是顺序错误
// 跳过,稍后再处理
if (isset($this->symbolDeclInFile[$name])
and $this->symbolDeclInFile[$name] === $this->file
and !$this->hasFunction($name)) {
$this->redoAfterDeclare[$name] = true;
throw new Skip();
}
}
protected function checkNativeCallArgs(CallLike $expr, FunctionDef $funcDef, array $args, string $name): void
{
$argc = count($args);
$type = str_contains($name, '::') ? 'Method' : 'Function';
if ($argc < $funcDef->argCountRequired) {
$this->fatalError($expr, $type . ' `' . $name . '()` requires ' . $funcDef->argCountRequired . ' arguments, ' . $argc . ' given');
} elseif (!$funcDef->hasVariadicArg() and count($expr->args) > count($funcDef->argInfoList)) {
$this->fatalError($expr, $type . ' `' . $name . '()` accepts ' . count($funcDef->argInfoList) . ' arguments, ' . $argc . ' given');
}
}
protected function getNativeMethod(CallLike $expr, string $class, string $method, bool $checkArgs = true): string|false
{
if (!$this->hasClass($class)) {
return false;
}
$classDef = $this->getClass($class);
$methodDef = null;
// 递归查找,若子类中未定义方法,则尝试查找父类是否存在此方法
while (true) {
if (!$classDef->hasMethod($method)) {
if (!$classDef->extends) {
return false;
}
if (!$this->hasClass($classDef->extends)) {
if ($classDef->inheritedFromInternalClass) {
if (!Reflection::hasMethod($classDef->extends, $method) and !Reflection::hasMethod($classDef->extends, $method . '__call')) {
$this->fatalError($expr, 'Class `' . $classDef->getNamespacedName() . '` inherits from a internal class, but the class `' .
$classDef->extends . '` does not have a `' . $method . '` method or a `__call` magic method');
} else {
$this->climate->cyan('Dynamically calling internal class method `' . $classDef->extends . '::' . $method . '()`');
throw new DynamicCall();
}
}
return false;
}
$classDef = $this->getClass($classDef->extends);
} else {
$methodDef = $classDef->getMethod($method);
break;
}
}
if (!$this->checkAccessible($classDef, $methodDef->flags)) {
$this->fatalError($expr, 'Method `' . $classDef->getNamespacedName() . '::' . $method . '()` is not accessible');
}
// 函数调用占位符,不是真实的函数调用
if (count($expr->args) === 1 and $this->isPlaceholderExpr($expr->args[0])) {
return false;
}
if ($checkArgs) {
$this->checkNativeCallArgs($expr, $methodDef->functionDef, $expr->args, $classDef->getNamespacedName() . '::' . $method);
}
return $this->getNativeName($method, $classDef->namespace, $classDef->name);
}
protected function findNativeClassConst(NodeAbstract $expr, string $class, string $const): string|false
{
if (!$this->hasClass($class)) {
return false;
}
$classDef = $this->getClass($class);
$constDef = null;
// 递归查找,若子类中未定义方法,则尝试查找父类是否存在此方法
while (true) {
if (!$classDef->hasConstant($const)) {
if (!$classDef->extends) {
return false;
}
if (!$this->hasClass($classDef->extends)) {
return false;
}
$classDef = $this->getClass($classDef->extends);
} else {
$constDef = $classDef->getConstant($const);
break;
}
}
if (!$this->checkAccessible($classDef, $constDef->flags)) {
$this->fatalError($expr, 'Constant `' . $classDef->getNamespacedName() . '::' . $const . '` is not accessible');
}
if ($constDef->type === self::TYPE_ARRAY) {
return self::PREFIX . $this->getNativeName($constDef->name, $classDef->namespace, $classDef->name);
} else {
$expr->setAttribute('nativeConst', $constDef);
return $constDef->value;
}
}
protected function resetReturnType(Node\Stmt\Return_ $node, string $type): void
{
$oriType = $this->functionDef->returnType;
$this->functionDef->returnType = $type;
// 返回值变更,需要重新解析
$this->climate->cyan("Return type changed ({$oriType} -> {$type}) at line {$node->getLine()} retrying...");
throw new Redo();
}
protected function detectVarType($var): string
{
$name = $this->parseIdentifier($var);
return $this->getVarType($name);
}
protected function detectExprType($expr): string
{
$exprType = $expr->getType();
switch ($exprType) {
case 'Expr_Cast_Int':
case 'Scalar_Int':
return $this->getNativeType(self::TYPE_INT);
case 'Expr_Cast_Float':
case 'Expr_Cast_Double':
case 'Scalar_Float':
return $this->getNativeType(self::TYPE_FLOAT);
case 'Expr_Cast_Bool':
case 'Scalar_Bool':
return $this->getNativeType(self::TYPE_BOOL);
case 'Expr_Array':
case 'Expr_Cast_Array':
return self::TYPE_ARRAY;
case 'Expr_BinaryOp_Plus':
case 'Expr_BinaryOp_Minus':
case 'Expr_BinaryOp_Mul':
case 'Expr_BinaryOp_Div':
case 'Expr_BinaryOp_Mod':
case 'Expr_BinaryOp_Pow':
case 'Expr_BinaryOp_ShiftLeft':
case 'Expr_BinaryOp_ShiftRight':
case 'Expr_BinaryOp_BitwiseAnd':
case 'Expr_BinaryOp_BitwiseOr':
case 'Expr_BinaryOp_BitwiseXor':
case 'Expr_BinaryOp_BooleanAnd':
$leftType = $this->detectExprType($expr->left);
$rightType = $this->detectExprType($expr->right);
if ($leftType === self::TYPE_FLOAT || $rightType === self::TYPE_FLOAT) {
return self::TYPE_FLOAT;
}
if ($leftType === self::TYPE_INT || $rightType === self::TYPE_INT) {
// 除法存在特殊性,若未能整除,会返回浮点数,其他则一律视为整数
if ($exprType === 'Expr_BinaryOp_Div') {
if ($leftType === self::TYPE_INT && $rightType === self::TYPE_INT) {
return self::TYPE_INT;
} else {
return self::TYPE_VAR;
}
}
return self::TYPE_INT;
}
break;
case 'Expr_FuncCall':
if ($this->isNameExpr($expr->name)) {
$name = $this->parseIdentifier($expr->name);
if ($this->hasFunction($name)) {
return $this->getFunction($name)->returnType;
}
return $this->detectFuncCallReturnType($name);
}
break;
case 'Expr_MethodCall':
if ($this->isVarExpr($expr->var) and $this->isNamedMethod($expr->name)) {
$object = $this->parseIdentifier($expr->var);
$method = $this->parseIdentifier($expr->name);
$nativeFunc = $this->findNativeMethod($expr, $object, $method);
if ($nativeFunc) {
$funcDef = $this->functions[$nativeFunc];
return $funcDef->returnType;
}
if ($this->isTypedObject($object)) {
return $this->detectMethodCallReturnType($this->getObjectType($object), $method);
}
}
break;
case 'Expr_New':
return self::TYPE_OBJECT;
case 'Expr_Assign':
return $this->detectVarType($expr->var);
case self::EXPR_VARIABLE:
return $this->detectVarType($expr);
case 'Expr_ConstFetch':
return $this->detectConstType($expr);
case 'Scalar_String':
return self::TYPE_STR;
default:
break;
}
return self::TYPE_VAR;
}
protected function parseArray(Expr\Array_ $node): string
{
$items = $node->items;
// 优化代码风格,空数组直接返回{},否则会产生一些空洞内容
if (count($items) === 0) {
return self::TYPE_ARRAY . '{}';
}
$hasKey = false;
$hasIntKey = false;
$hasStrKey = false;
$hasUnpack = false;
$hasVarKey = false;
$hasNextInsert = false;
foreach ($items as $item) {
if ($item->unpack) {
$hasUnpack = true;
}
if ($item->key) {
if ($item->key instanceof Node\Scalar\LNumber) {
$hasIntKey = true;
} elseif ($item->key instanceof Node\Scalar\String_) {
$hasStrKey = true;
} else {
$hasVarKey = true;
}
$hasKey = true;
} else {
$hasNextInsert = true;
}
}
// 存在混合键,则需要拆分为多行插入
if ($hasUnpack or $hasVarKey or ($hasNextInsert && $hasKey) or ($hasIntKey and $hasStrKey)) {
return $this->parseArrayMixed($node);
}
$list = [];
$this->indentLevel++;
foreach ($items as $item) {
$value = $this->parseIdentifier($item->value);
if ($item->key) {
$key = $this->parseIdentifier($item->key);
if (str_starts_with($key, self::LITERAL_STRINGS)) {
$key = "{$key}.toStdString()";
} elseif ($key === '0L') {
$key = 'php::zero';
}
$list[] = $this->getIndent() . '{ ' . $key . ', ' .
self::TYPE_VAR . '(' . $value . ') }';
} else {
$list[] = $this->getIndent() . self::TYPE_VAR . '(' . $value . ')';
}
}
$this->indentLevel--;
return self::TYPE_ARRAY . '{' . PHP_EOL .
implode(', ' . PHP_EOL, $list) . PHP_EOL .
$this->getIndent() .
'}';
}
protected function parseParameterType(Node\Param $param, ArgInfo $argInfo, string $var): string
{
if ($param->byRef) {
return self::TYPE_REF;
}
if ($param->type === null or $param->type instanceof NullableType or $param->type instanceof UnionType) {
return self::TYPE_VAR;
}
$type = $param->type;
$typeName = $type->name;
if ($typeName === 'void' or $typeName === 'never') {
$this->fatalError($param, 'Cannot use `void`/`never` as a parameter type.');
} elseif ($typeName === 'self') {
$class = $this->classDef->getNamespacedName(false);
} elseif (isset($this->zendTypeMap[$typeName])) {
return $this->getTypeFromZendType($typeName);
} else {
$class = $this->getNamespacedClassName($typeName);
}
$this->addObject($var, $class);
$argInfo->class = $class;
return self::TYPE_OBJECT;
}
protected function parseIncludes(): string
{
$list = [
$this->phpxDir . '/include',
$this->getBuildDir() . '/include',
$this->rootPath . '/src/cpp',
];
$out = '$(php-config --includes) ';
foreach ($list as $li) {
$out .= '-I ' . $li . ' ';
}
return $out;
}
protected function parseLdflags(): string
{
$list = [
'$(php-config --prefix)/lib',
$this->phpxDir . '/lib',
];
$out = '';
foreach ($list as $li) {
$out .= '-L ' . $li . ' ';
}
return $out;
}
protected function parseLibs(): string
{
$list = ['phpx'];
if ($this->buildMode === 'bin') {
$list[] = 'php';
}
$out = '';
foreach ($list as $li) {
$out .= '-l' . $li . ' ';
}
return $out;
}
protected function addCompilationOption(string &$cmd, bool $link): void
{
$cmd .= ' ' . $this->parseIncludes();
$cmd .= ' -O' . $this->optimizeLevel;
$cmd .= ' -g';
$cmd .= ' -Wall';
if ($this->enableProfiler) {
$cmd .= ' -lprofiler';
$cmd .= ' -DPPROF_ON=1';
}
if ($this->buildMode === 'ext') {
if ($link) {
$cmd .= ' -shared';
} else {
$cmd .= ' -fPIC';
}
}
if ($link) {
$cmd .= ' ' . $this->parseLdflags();
$cmd .= ' ' . $this->parseLibs();
if ($this->ldflags) {
$cmd .= ' ' . $this->ldflags;
}
} else {
if ($this->cxxflags) {
$cmd .= ' ' . $this->cxxflags;
}
}
}
protected function parseBinaryOpConcat(Expr\BinaryOp\Concat $expr): string
{
$left = $this->parseIdentifier($expr->left);
$right = $this->parseIdentifier($expr->right);
return 'php::concat(' . $left . ', ' . $right . ')';
}
protected function parseFor(Node\Stmt\For_ $v): string
{
$init = $v->init;
$cond = $v->cond;
$loop = $v->loop;
$stmts = $v->stmts;
$code = '';
$list_expr = [];
foreach ($init as $expr) {
$list_expr[] = $this->parseExpr($expr);
}
$list_expr[] = '';
$code .= implode(";\n" . $this->getIndent(), $list_expr);
$list_cond = [];
foreach ($cond as $expr) {
$list_cond[] = $this->parseExpr($expr);
}
$code .= $this->parseBeforeStmtLines() . PHP_EOL;
$code .= 'for (;';
$code .= implode(', ', $list_cond);
$code .= '; ';
$list_loop = [];
foreach ($loop as $expr) {
$list_loop[] = $this->parseExpr($expr);
}
$code .= implode(', ', $list_loop);
$code .= ') {' . PHP_EOL;
$this->indentLevel++;
$code .= $this->parseStmts($stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '}' . PHP_EOL;
return $code;
}
protected function parseBinaryOpSmaller(Expr\BinaryOp\Smaller $expr): string
{
return $this->convertBoolExpr($this->parseBinaryOp($expr->left, $expr->right, '<'));
}
protected function parsePreInc(Expr\PreInc $expr): string
{
return '++' . $this->parseIdentifier($expr->var);
}
protected function removeAssignOp(string $op): string
{
return str_replace('=', '', $op);
}
protected function parseAssignOp(Expr\AssignOp $node, string $op): string
{
$var = $this->parseIdentifier($node->var);
$expr = $this->parseIdentifier($node->expr);
$leftExprType = $node->var->getType();
if ($this->isVarExpr($node->var)) {
if (!$this->hasVar($var)) {
$this->fatalError($node->var, 'Cannot assign to undefined variable');
}
$type = $this->detectVarType($node->var);
$rightExprStr = $this->convertExprType($expr, $type, $this->detectExprType($node->expr));
if ($this->isAssignOpConcat($op)) {
if ($this->isArrayVar($node->var)) {
$this->fatalError($node->var, 'Cannot concat string to array');
}
return $var . '.append(' . $rightExprStr . ')';
}
if ($this->isAssignOpPow($op)) {
$powExpr = 'php::math::pow(' . $var . ', ' . $rightExprStr . ')';
return $var . ' = ' . $this->convertVarType($var, $powExpr);
}
return $var . ' ' . $op . ' ' . $rightExprStr;
}
if ($leftExprType === self::EXPR_ARRAY_DIM_FETCH) {
/**
* $count[$r] -= 1;
* 需要转为下面语句:
* $tmp_var = $count[$r] - 1;
* $count[$r] = $tmp_var;.
*/
$type = $this->detectVarType($node->var);
$rightType = $this->detectExprType($node->expr);
$tmpVar = $this->genTmpVarName();
$this->addLocalVar($tmpVar, $rightType);
$dim = $this->parseIdentifier($node->var->dim);
$binaryOp = $this->removeAssignOp($op);
if ($binaryOp === '.') {
$this->context->beforeStmtLines[] = "{$tmpVar} = php::concat(" .
$this->convertVarType($tmpVar, $var) . ', ' .
$this->convertExprType($expr, $type, $rightType) . ');';
} else {
$this->context->beforeStmtLines[] = "{$tmpVar} = " .
$this->convertVarType($tmpVar, $var) . ' ' .
$binaryOp . ' ' .
$this->convertExprType($expr, $type, $rightType) . ';';
}
return $this->parseArrayDimStore($node->var->var, $dim, $tmpVar);
}
if ($this->isAssignOpConcat($op)) {
return $var . '.append(' . $expr . ')';
}
return $var . ' ' . $op . ' (' . $expr . ')';
}
protected function parseAssignOpConcat(Expr\AssignOp\Concat $expr): string
{
return $this->parseAssignOp($expr, '.=');
}
protected function parseAssignOpPlus(Expr\AssignOp\Plus $expr): string
{
return $this->parseAssignOp($expr, '+=');
}
protected function parseAssignOpMinus(Expr\AssignOp\Minus $expr): string
{
return $this->parseAssignOp($expr, '-=');
}
protected function parseAssignOpMod(Expr\AssignOp\Mod $expr): string
{
return $this->parseAssignOp($expr, '%=');
}
protected function parseAssignOpMul(Expr\AssignOp\Mul $expr): string
{
return $this->parseAssignOp($expr, '*=');
}
protected function parseAssignOpDiv(Expr\AssignOp\Div $expr): string
{
return $this->parseAssignOp($expr, '/=');
}
protected function parseAssignOpBitwiseAnd(Expr\AssignOp\BitwiseAnd $expr): string
{
return $this->parseAssignOp($expr, '&=');
}
protected function parseAssignOpPow(Expr\AssignOp\Pow $expr): string
{
return $this->parseAssignOp($expr, '**=');
}
protected function error(string $msg): never
{
if ($this->forTest) {
throw new TestError($msg);
} else {
$this->climate->red("Fatal error: {$msg}");
debug_print_backtrace();
exit(255);
}
}
protected function fatalError(Node $node, string $msg): never
{
$this->error("{$msg} in {$this->file}:{$node->getStartLine()}");
}
protected function warning(Node $node, string $msg): void
{
$this->climate->yellow("{$msg} in {$this->file}:{$node->getStartLine()}");
}
protected function errorUndefinedVariable(Variable $node): never
{
$this->fatalError($node, "The variable `\${$node->name}` is undefined");
}
protected function warningUndefinedBehavior(NodeAbstract $expr): void
{
$this->warning($expr, 'Use this expression carefully, which may be inconsistent with the dynamic execution behavior');
}
protected function dump(NodeAbstract $v): void
{
if ($this->debugLine == $v->getStartLine()) {
var_dump($v);
}
}
/**
* $GLOBALS['var'] 等价于 global $var; $var ,将字符串常量转为变量名称即可
* 仅限于字面量字符串可以转为变量名称,其他则使用 php::global() 函数获取
*/
protected function parseGlobalsArrayDimFetch(Expr\ArrayDimFetch $node): string
{
if ($node->dim === null) {
$this->fatalError($node, 'Cannot use [] for GLOBALS');
}
if ($this->isScalarString($node->dim)) {
$name = $node->dim->value;
if (!$this->hasGlobalVar($name)) {
$this->addGlobalVar($name, self::TYPE_VAR);
}
if (!$this->hasScopeGlobalVar($name)) {
$this->addScopeGlobalVar($name, self::TYPE_VAR);
}
return $name;
}
return 'php::global(' . $this->parseIdentifier($node->dim) . ')';
}
protected function parseArrayDimFetch(Expr\ArrayDimFetch $node, bool $write): string
{
$var = $this->parseIdentifier($node->var);
if ($this->isVarExpr($node->var)) {
if ($var === 'GLOBALS') {
return $this->parseGlobalsArrayDimFetch($node);
}
if (!$this->hasVar($var)) {
if ($write) {
$this->addLocalVar($var, self::TYPE_ARRAY);
} else {
$this->errorUndefinedVariable($node->var);
}
} else {
$type = $this->getVarType($var);
if ($type === self::TYPE_BOOL || $type === self::TYPE_INT || $type === self::TYPE_FLOAT) {
$this->fatalError($node, 'Cannot use [] for numbers');
}
}
if ($this->getVarType($var) === self::TYPE_STR) {
if ($node->dim === null) {
$this->fatalError($node, 'Cannot use [] for strings');
}
}
}
if ($node->dim === null) {
if (!$write) {
$this->fatalError($node, 'Cannot use [] for reading');
} else {
return $var . '.newItem()';
}
} else {
$oriInAssignExpr = $this->context->inAssignExpr;
$this->context->inAssignExpr = false;
$dim = $this->parseIdentifier($node->dim);
$this->context->inAssignExpr = $oriInAssignExpr;
return $var . '.item(' . $this->trimBrackets($dim) . ', ' . $this->escapeBool($write) . ')';
}
}
protected function parseArrayDimStore($array, $dim, $var): string
{
$oriInAssignExpr = $this->context->inAssignExpr;
$this->context->inAssignExpr = true;
$id = $this->parseIdentifier($array);
$this->context->inAssignExpr = $oriInAssignExpr;
return $id . '.offsetSet(' . $this->trimBrackets($dim) . ', ' . $this->trimBrackets($var) . ')';
}
protected function parseBinaryOpShiftLeft(Expr\BinaryOp\ShiftLeft $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '<<');
}
protected function parseBinaryOpShiftRight(Expr\BinaryOp\ShiftRight $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '>>');
}
protected function parseBinaryOpMod(Expr\BinaryOp\Mod $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '%');
}
/**
* 查找原生函数.
*/
protected function findNativeFunction(string $funcName): string|false
{
// 绝对命名空间的函数
if ($funcName[0] == '\\') {
$funcName = ltrim($funcName, '\\');
$possibleFunctionNames = [$this->escapeName($funcName)];
} else {
$possibleFunctionNames = [$this->escapeName($funcName)];
if (isset($this->useAliases[$funcName])) {
$possibleFunctionNames[] = $this->escapeName($this->escapeNamespace($this->useAliases[$funcName]));
}
if ($this->namespace) {
$possibleFunctionNames[] = $this->escapeNamespace($this->namespace) . self::NAMESPACE_SEPARATOR . $funcName;
}
if (isset($this->useFunctions[$funcName])) {
$possibleFunctionNames[] = $this->escapeNamespace($this->useFunctions[$funcName]) . self::NAMESPACE_SEPARATOR . $funcName;
}
// 复杂命名空间规则,组合命名空间
// 例子:use foo\bar; bar\fn();
foreach ($this->useNamespaces as $use) {
$ns1 = explode('\\', $use);
$ns2 = explode('\\', $funcName);
if ($ns1[array_key_last($ns1)] === $ns2[array_key_first($ns2)]) {
$ns = array_merge($ns1, $ns2);
array_splice($ns, array_key_last($ns1) + 1);
$possibleFunctionNames[] = $this->escapeNamespace(implode('\\', $ns));
break;
}
}
}
foreach ($possibleFunctionNames as $nativeFunc) {
if (str_contains($nativeFunc, '\\')) {
$nativeFunc = $this->escapeNamespace($nativeFunc);
}
$this->checkFunction($nativeFunc);
if ($this->hasFunction($nativeFunc)) {
return $nativeFunc;
}
}
return false;
}
protected function foundStrayCode(Node $node): never
{
$this->fatalError($node, 'All execution code must be within a function, found stray code');
}
protected function parseFuncCall(Expr\FuncCall $expr): string
{
if ($this->isVarExpr($expr->name)) {
$fn = $this->parseIdentifier($expr->name);
$placeHolder = $fn;
$name = '';
} elseif ($expr->name->getType() === 'Name' or $expr->name->getType() === 'Name_FullyQualified') {
$name = $this->parseIdentifier($expr->name);
if (in_array($name, Constants::UNSUPPORTED_FUNCTIONS)) {
$this->fatalError($expr, 'Unsupported function: `' . $name . '`');
}
$nativeFn = $this->findNativeFunction($name);
if ($nativeFn) {
$expr->setAttribute('nativeCall', $nativeFn);
$this->checkNativeCallArgs($expr, $this->getFunction($nativeFn), $expr->args, $name);
try {
return self::PREFIX . $nativeFn . '(' . $this->parseNativeCallArgs($expr->args, $nativeFn) . ')';
} catch (PlaceHolder) {
return $this->genPlaceHolder($this->identifierToStr($expr->name));
}
}
$code = $this->parseFuncCallWithOptimizer($name, $expr);
if ($code) {
return $code;
}
$placeHolder = $this->identifierToStr($expr->name);
$fn = $this->getFuncPtr($name);
$this->context->beforeStmtLines[] = '// Func Call: ' . $name . '()';
} else {
$tmpVar = $this->addTmpVar(self::TYPE_VAR);
$this->context->beforeStmtLines[] = $tmpVar . ' = ' . $this->parseExpr($expr->name) . ';';
$placeHolder = $fn = $tmpVar;
$name = '';
}
if (empty($expr->args)) {
return 'php::call(' . $fn . ')';
}
try {
return 'php::call(' . $fn . ', ' . $this->parseCallArgs($expr->args, $name) . ')';
} catch (PlaceHolder) {
return $this->genPlaceHolder($placeHolder);
}
}
/**
* @param array<Node\Arg|Node\VariadicPlaceholder> $callArgs
*/
protected function parseNativeCallArgs(array $callArgs, string $nativeFunc): string
{
$argList = [];
$functionDef = $this->functions[$nativeFunc];
$args = [];
$hasNamedArg = false;
// 对命名参数进行重排
foreach ($callArgs as $i => $arg) {
if ($this->isPlaceholderExpr($arg)) {
throw new PlaceHolder();
}
if ($arg->name) {
foreach ($functionDef->argInfoList as $k => $argInfo) {
if ($argInfo->name === $arg->name->name) {
$args[$k] = $arg;
$hasNamedArg = true;
break;
}
}
} else {
$args[$i] = $arg;
}
}
// 对 key 进行排序,确保参数顺序正确
if ($hasNamedArg) {
// 命名参数中间存在空洞,需要使用默认参数填充
foreach ($functionDef->argInfoList as $k => $argInfo) {
if (!isset($args[$k])) {
if ($argInfo->defaultValue === null) {
$this->fatalError($callArgs[$i], 'Named argument `' . $argInfo->name . '` is missing default value');
}
$args[$k] = new Node\Arg($argInfo->defaultValue);
}
}
ksort($args);
}
// 函数只接受一个变长参数,且调用参数为空,直接传入空数组
if (count($args) === 0 and count($functionDef->argInfoList) === 1 and $functionDef->argInfoList[0]->variadic) {
return '{}';
}
foreach ($args as $i => $arg) {
$argInfo = $this->getArgInfo($arg, $nativeFunc, $i);
if ($argInfo->variadic) {
$argsSlice = array_slice($args, $i);
if (count($argsSlice) === 1 and $argsSlice[0]->unpack) {
if ($this->isVarExpr($arg->value)) {
$var =$this->parseIdentifier($arg->value);
if ($this->getVarType($var) === self::TYPE_ARRAY) {
$argList[] = $var;
break;
}
}
$argList[] = $this->convertArrayExpr($this->parseExpr($arg->value));
} else {
$tmpVar = $this->addTmpVar(self::TYPE_ARRAY);
foreach ($argsSlice as $item) {
if ($item->unpack) {
$this->context->beforeStmtLines[] = $tmpVar . '.merge(' . $this->parseArg($item) . ');';
} else {
$this->context->beforeStmtLines[] = $tmpVar . '.append(' . $this->parseArg($item) . ');';
}
}
$argList[] = $tmpVar;
break;
}
} else {
$argList[] = $this->getTypeConvertedArg($arg, $argInfo);
}
}
return implode(', ', $argList);
}
protected function parseNamedCallArgs(array $args, int $firstIndex, array $listArgs): string
{
$namedArgs = [];
foreach ($args as $i => $arg) {
if ($i < $firstIndex) {
continue;
}
if ($arg->name === null) {
$this->fatalError($arg, 'Named argument must follow positional argument');
}
if (!$this->isIdExpr($arg->name)) {
$this->fatalError($arg, 'Named argument must be a string');
}
$namedArgs[$arg->name->name] = $this->parseArg($arg);
}
$tmpVar = $this->genTmpVarName();
$array = self::TYPE_ARRAY . ' ' . $tmpVar . ';';
foreach ($namedArgs as $k => $v) {
$array .= $tmpVar . '.set(' . $this->getLiteralString($k) . ', ' . $v . ');' . PHP_EOL;
}
$this->context->beforeStmtLines[] = $array;
return '{' . implode(', ', $listArgs) . '}, ' . $tmpVar . '.array()';
}
protected function parseCallArgs(array $args, string $funcName = '', string $className = ''): string
{
$list_args = [];
$last = array_key_last($args);
foreach ($args as $i => $arg) {
if ($this->isPlaceholderExpr($arg)) {
throw new PlaceHolder();
}
if ($arg->name !== null) {
return $this->parseNamedCallArgs($args, $i, $list_args);
}
$byRef = $funcName && Reflection::isReferenceArg($funcName, $className, $i);
if ($this->isVarExpr($arg->value)) {
$name = $this->parseIdentifier($arg->value);
if ($byRef) {
if (!$this->hasVar($name)) {
// 若参数是引用类型,可以传入未定义变量,将立即创建变量作为引用
$this->addLocalVar($name, self::TYPE_REF);
} else {
// 本地变量,且是原生类型,则转为普通变量
if ($this->hasLocalVar($name) and $this->isNativeType($this->getVarType($name))) {
$this->context->localVars[$name] = self::TYPE_VAR;
}
// 需要引用类型的参数,使用临时变量作为引用,并替换掉实际的参数
$tmpVar = $this->genTmpVarName();
$this->addLocalVar($tmpVar, self::TYPE_REF);
$this->context->beforeStmtLines[] = $tmpVar . ' = ' . $this->parseExpr($arg->value) . '.toReference();';
$name = $tmpVar;
}
$list_args[] = '&' . $name;
continue;
}
if (!$this->hasVar($name)) {
$this->fatalError($arg, 'Undefined variable `$' . $name . '`');
}
} elseif ($this->isPropertyFetch($arg->value) and $this->isVarExpr($arg->value->var)) {
$obj = $this->parseIdentifier($arg->value->var);
if (!$this->hasVar($obj)) {
$this->fatalError($arg, 'Undefined variable `$' . $obj . '`');
}
if ($byRef) {
$list_args[] = $obj . '.attrRef(' . $this->identifierToStr($arg->value->name) . ')';
continue;
}
} elseif ($this->isArrayDimFetch($arg->value) and $this->isVarExpr($arg->value->var)) {
$array = $this->parseIdentifier($arg->value->var);
if ($array === 'GLOBALS') {
$globalVar = $this->parseGlobalsArrayDimFetch($arg->value);
// 全局变量作为引用参数
if ($byRef) {
$ref = $this->addTmpVar(self::TYPE_REF);
$this->context->beforeStmtLines[] = $ref . ' = ' . $globalVar . '.toReference();';
$list_args[] = '&' . $ref;
} else {
$list_args[] = $globalVar;
}
continue;
}
if ($this->isVarExpr($arg->value->var) and !$this->hasVar($array)) {
$this->fatalError($arg, 'Undefined variable `$' . $array . '`');
}
if ($byRef) {
if ($arg->value->dim === null) {
$this->fatalError($arg, 'Array dimension must be a constant expression');
}
$list_args[] = $array . '.itemRef(' . $this->identifierToStr($arg->value->dim) . ')';
continue;
}
} else {
if ($byRef) {
$list_args[] = $this->parseChainedExpr($arg->value, self::OP_REFVAL);
continue;
}
}
// 变长参数展开的语法,例如:array_merge(...$arr)
if ($arg->unpack) {
if ($i !== $last) {
$this->fatalError($arg, 'The unpack expression for variadic arguments must be the last');
}
// 如果第一个参数是数组变量,数组展开语法直接传递该变量,没必要创建临时变量
// 例如:function (array $args) { var_dump(...$args); }
if ($i === 0 and $this->isVarExpr($arg->value) and $this->getVarType($arg->value->name) === self::TYPE_ARRAY) {
return $this->parseIdentifier($arg->value);
} else {
$tmpVar = $this->genTmpVarName();
$this->context->beforeStmtLines[] = self::TYPE_ARRAY . ' ' . $tmpVar . '{' . implode(', ', $list_args) . '};';
$this->context->beforeStmtLines[] = $tmpVar . '.merge(' . $this->parseArrayArg($arg) . ');';
return $tmpVar;
}
}
$list_args[] = $this->parseArg($arg);
}
return '{' . implode(', ', $list_args) . '}';
}
protected function parseArg(Node\Arg $arg): string
{
return $this->parseIdentifier($arg->value);
}
protected function parseArrayArg(Node\Arg $expr): string
{
$value = $expr->value;
if ($this->isVarExpr($value)) {
$var = $this->parseIdentifier($value);
if (!$this->hasVar($var)) {
$this->errorUndefinedVariable($value);
}
if ($this->getVarType($var) === self::TYPE_ARRAY) {
return $var;
}
}
return $this->parseExpr($value);
}
protected function parsePostOp(Expr\PostDec|Expr\PostInc $expr, string $op): string
{
if ($this->isVarExpr($expr->var) or $this->isPropertyFetch($expr->var) or $this->isArrayDimFetch($expr->var)) {
$var = $this->parseIdentifier($expr->var);
if ($this->isVarExpr($expr->var) and !$this->hasVar($var)) {
$this->errorUndefinedVariable($expr->var);
}
return $var . str_repeat($op, 2);
}
if ($this->isStaticPropertyFetch($expr->var)) {
$native = $this->parseNativeStaticPropertyFetch($expr->var);
if ($native) {
return $native . str_repeat($op, 2);
}
$class = $this->identifierToStr($expr->var->class);
$prop = $this->identifierToStr($expr->var->name);
$tmpVar = $this->genTmpVarName();
$this->addLocalVar($tmpVar, self::TYPE_VAR);
$this->context->beforeStmtLines[] = $tmpVar . ' = php::getStaticProperty(' . $class . ', ' . $prop . ');';
$this->context->afterStmtLines[] = 'php::setStaticProperty(' . $class . ', ' . $prop . ', ' . $tmpVar . ' ' . $op . ' 1);';
return $tmpVar;
}
$this->fatalError($expr, 'Post-increment operator is not supported for non-variable expressions');
}
protected function parsePostDec(Expr\PostDec $expr): string
{
return $this->parsePostOp($expr, '-');
}
protected function parsePostInc(Expr\PostInc $expr): string
{
return $this->parsePostOp($expr, '+');
}
protected function parseTernary(Expr\Ternary $expr): string
{
if ($expr->if === null) {
return $this->parseValueSelection($expr, $expr->cond, $expr->else, self::OP_NOT_EMPTY);
}
return '(' . $this->parseExpr($expr->cond) . ') ? (' . $this->parseExpr($expr->if) . ') : (' . $this->parseExpr($expr->else) . ')';
}
protected function parseMatch(Expr\Match_ $expr): string
{
$var = $this->parseIdentifier($expr->cond);
if ($this->isVarExpr($expr->cond)) {
if (!$this->hasVar($var)) {
$this->errorUndefinedVariable($expr->cond);
}
} else {
$tmpVar = $this->addTmpVar(self::TYPE_VAR);
$this->context->beforeStmtLines[] = $tmpVar . ' = ' . $var . ';';
$var = $tmpVar;
}
$code = '[&]() -> ' . self::TYPE_VAR . '{';
$default = null;
foreach ($expr->arms as $i => $arm) {
if ($arm->conds === null) {
$default = $arm->body;
continue;
}
$prefix = $i === 0 ? 'if' : 'else if';
$condList = [];
foreach ($arm->conds as $cond) {
if ($this->isMatchExpr($cond)) {
$this->fatalError($arm, 'Match expression cannot be used as a condition');
}
$condList[] = 'php::same(' . $var . ', ' . $this->parseExpr($cond) . ')';
}
$code .= $prefix . '(' . implode(' || ', $condList) . ') {';
$code .= 'return ' . $this->parseExpr($arm->body) . ';';
$code .= '}';
}
$else = count($expr->arms) === 0 ? '' : 'else ';
if ($default) {
$code .= $else . ' { return ' . $this->parseExpr($default) . '; }';
} else {
$code .= $else . ' { return php::throwException("UnhandledMatchError", "Unhandled match case"); }';
}
$code .= '}()';
return $code;
}
protected function parseBinaryOpGreater(Expr\BinaryOp\Greater $expr): string
{
return $this->convertBoolExpr($this->parseBinaryOp($expr->left, $expr->right, '>'));
}
protected function parseBinaryOpPow(Expr\BinaryOp\Pow $expr): string
{
$left = $this->parseIdentifier($expr->left);
$right = $this->parseIdentifier($expr->right);
return 'php::math::pow(' . $left . ', ' . $right . ')';
}
protected function parsePreDec(Expr\PreDec $expr): string
{
return '--' . $this->parseIdentifier($expr->var);
}
protected function parseBinaryOpBitwiseAnd(Expr\BinaryOp\BitwiseAnd $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '&');
}
protected function parseBinaryOpBitwiseOr(Expr\BinaryOp\BitwiseOr $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '|');
}
protected function parseBinaryOpBitwiseXor(Expr\BinaryOp\BitwiseXor $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '^');
}
protected function parseBitwiseNot(Expr\BitwiseNot $expr): string
{
$var = $this->parseIdentifier($expr->expr);
return '~' . $var;
}
protected function parseIf(Node\Stmt\If_ $v): string
{
$cond = $this->parseExpr($v->cond);
$code = $this->parseBeforeStmtLines() . PHP_EOL;
$code .= 'if (' . $cond . ') {' . PHP_EOL;
$this->indentLevel++;
$code .= $this->parseStmts($v->stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '}';
if ($v->elseifs) {
foreach ($v->elseifs as $elseif) {
$elseifCond = $this->parseExpr($elseif->cond);
$code .= ' else if (' . $elseifCond . ') {' . PHP_EOL;
$this->indentLevel++;
$code .= $this->parseStmts($elseif->stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '}';
}
}
if ($v->else) {
$code .= ' else {' . PHP_EOL;
$this->indentLevel++;
$code .= $this->parseStmts($v->else->stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '}';
}
return $code . PHP_EOL;
}
protected function parseBinaryOpEqual(Expr\BinaryOp\Equal $expr): string
{
return 'php::equals(' . $this->parseExpr($expr->left) . ', ' . $this->parseExpr($expr->right) . ')';
}
protected function parseBinaryOpNotEqual(Expr\BinaryOp\NotEqual $expr): string
{
return '!php::equals(' . $this->parseExpr($expr->left) . ', ' . $this->parseExpr($expr->right) . ')';
}
/**
* 逻辑比较的运算,必须返回 bool 类型.
*/
protected function parseBinaryOpLogicalAnd(Expr\BinaryOp\LogicalAnd|Expr\BinaryOp\BooleanAnd $expr): string
{
return $this->convertBoolExpr($this->parseBinaryOp($expr->left, $expr->right, '&&'));
}
protected function parseBinaryOpLogicalOr(Expr\BinaryOp\LogicalOr|Expr\BinaryOp\BooleanOr $expr): string
{
return $this->convertBoolExpr($this->parseBinaryOp($expr->left, $expr->right, '||'));
}
protected function parseBinaryOpLogicalXor(Expr\BinaryOp\LogicalXor $expr): string
{
return $this->convertBoolExpr($this->parseBinaryOp($expr->left, $expr->right, '^'));
}
protected function parseBooleanNot(Expr\BooleanNot $expr): string
{
$expr = $this->parseExpr($expr->expr);
return '!' . $expr;
}
protected function parseWhile(Node\Stmt\While_ $v): string
{
$cond = $this->parseExpr($v->cond);
$stmts = $v->stmts;
$code = $this->parseBeforeStmtLines() . PHP_EOL;
$code .= 'while (' . $cond . ') {' . PHP_EOL;
$this->indentLevel++;
$code .= $this->parseStmts($stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '}' . PHP_EOL;
return $code;
}
protected function convertIntExpr(string $expr): string
{
if (!$this->isClosedExpr($expr, 'php::toInt')) {
return 'php::toInt(' . $this->trimBrackets($expr) . ')';
}
return $expr;
}
protected function convertFloatExpr(string $expr): string
{
if (!$this->isClosedExpr($expr, 'php::toFloat')) {
return 'php::toFloat(' . $this->trimBrackets($expr) . ')';
}
return $expr;
}
protected function convertStringExpr(string $expr): string
{
if (!$this->isClosedExpr($expr, 'php::toString')) {
return 'php::toString(' . $this->trimBrackets($expr) . ')';
}
return $expr;
}
protected function convertObjectExpr(string $expr, string $class = ''): string
{
if (!$this->isClosedExpr($expr, 'php::toObject')) {
if ($class === '') {
return 'php::toObject(' . $this->trimBrackets($expr) . ')';
}
return 'php::toObject(' . $this->trimBrackets($expr) . ', ' . $class . ')';
}
return $expr;
}
protected function convertArrayExpr(string $expr): string
{
if (!$this->isClosedExpr($expr, 'php::toArray')) {
return 'php::toArray(' . $this->trimBrackets($expr) . ')';
}
return $expr;
}
protected function convertBoolExpr(string $expr): string
{
if (!$this->isClosedExpr($expr, 'php::toBool')) {
return 'php::toBool(' . $this->trimBrackets($expr) . ')';
}
return $expr;
}
protected function parseBinaryOpSmallerOrEqual(Expr\BinaryOp\SmallerOrEqual $expr): string
{
return $this->convertBoolExpr($this->parseBinaryOp($expr->left, $expr->right, '<='));
}
protected function parseBinaryOpGreaterOrEqual(Expr\BinaryOp\GreaterOrEqual $expr): string
{
return $this->convertBoolExpr($this->parseBinaryOp($expr->left, $expr->right, '>='));
}
protected function parsePrint(Expr\Print_ $expr): string
{
return 'php::echo(' . $this->parseExpr($expr->expr) . ')';
}
protected function parseDo(Node\Stmt\Do_ $v): string
{
$stmts = $v->stmts;
$cond = $this->parseExpr($v->cond);
$code = $this->parseBeforeStmtLines() . PHP_EOL;
$code .= 'do {' . PHP_EOL;
$this->indentLevel++;
$code .= $this->parseStmts($stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '} while (' . $cond . ');' . PHP_EOL;
return $code;
}
protected function parseBinaryOpIdentical(Expr\BinaryOp $expr): string
{
$left = $this->parseIdentifier($expr->left);
$right = $this->parseIdentifier($expr->right);
if ($right === 'nullptr') {
return $left . '.isNull()';
}
return 'php::same(' . $left . ', ' . $right . ')';
}
protected function parseBinaryOpSpaceship(Expr\BinaryOp\Spaceship $expr): string
{
$left = $this->parseIdentifier($expr->left);
$right = $this->parseIdentifier($expr->right);
return 'php::compare(' . $left . ', ' . $right . ')';
}
/**
* 值选择,如 ?: 或者 ??
*/
protected function parseValueSelection(NodeAbstract $expr, Expr $left, Expr $right, string $op): string
{
$leftExpr = $this->parseIdentifier($left);
if ($this->isVarExpr($left)) {
$this->checkVarMustExist($left, $leftExpr);
}
$condExpr = $this->parseChainedExpr($left, $op, true);
$chainOpResult = $left->getAttribute('chainOpResult');
if ($chainOpResult) {
$leftExpr = $chainOpResult;
}
$rightExpr = $this->parseIdentifier($right);
$this->checkVarMustExist($right, $rightExpr);
$tmpVar = $this->addTmpVar(self::TYPE_VAR);
$this->context->beforeStmtLines[] = '// Expr: ' . $this->printer->prettyPrintExpr($expr) . PHP_EOL .
$tmpVar . ' = ' . $condExpr . ' ? ' . $leftExpr . ' : ' . $rightExpr . ';';
$expr->setAttribute('replace', $tmpVar);
return $tmpVar;
}
protected function parseBinaryOpCoalesce(Expr\BinaryOp\Coalesce $expr): string
{
return $this->parseValueSelection($expr, $expr->left, $expr->right, self::OP_ISSET);
}
protected function parseBinaryOpNotIdentical(Expr\BinaryOp $expr): string
{
return '!(' . $this->parseBinaryOpIdentical($expr) . ')';
}
protected function packData(string $bytes): string
{
$out = '';
for ($i = 0; $i < strlen($bytes); $i++) {
$out .= ord($bytes[$i]) . ', ';
if ($i % 32 == 0) {
$out .= "\n\t";
}
}
$out .= '0,';
return $out;
}
protected function addConstData(string $name, string $bytes): void
{
$this->constData[$name] = $this->packData($bytes);
}
protected function parseNew(Expr\New_ $expr): string
{
// 匿名类
if ($expr->class instanceof Node\Stmt\Class_) {
if ($expr->class->name === null) {
$classDef = $expr->class;
$className = $this->genAnonClassName();
$classDef->name = new Node\Identifier($className);
$this->context->beforeStmtLines[] = 'static THREAD_LOCAL bool ' . $className . '_defined = false;';
$classCode = $this->genEmbeddedCode($classDef);
$this->addConstData($className . '_code', $classCode);
$this->context->beforeStmtLines[] = 'if (!' . $className . '_defined) {'
. $className . '_defined = true; php::eval((const char *)' . $className . '_code);}';
$className = '\\' . $className;
$cePtr = $this->getClassEntryPtr($className);
} else {
$this->fatalError($expr, 'must be anonymous class');
}
} else {
$className = $this->parseIdentifier($expr->class);
if ($this->isNameExpr($expr->class)) {
if ($className === 'static') {
$cePtr = 'php_get_called_ce(this_)';
} else {
$className = $this->getNamespacedClassName($className);
if ($this->hasClass($className)) {
$classDef = $this->getClass($className);
if ($classDef->flags & Modifiers::ABSTRACT) {
$this->fatalError($expr, "abstract class `{$className}` cannot be instantiated");
}
}
$cePtr = $this->getClassEntryPtr($className);
}
} else {
$cePtr = $className;
}
}
$args = $expr->args;
if (empty($args)) {
return 'php::newObject(' . $cePtr . ')';
}
return 'php::newObject(' . $cePtr . ', ' . $this->parseCallArgs($args) . ')';
}
protected function parseClone(Expr\Clone_ $expr): string
{
return 'php::clone(' . $this->parseExpr($expr->expr) . ')';
}
protected function parseInstanceof(Expr\Instanceof_ $expr): string
{
if ($this->isNameExpr($expr->class)) {
$className = $this->getNamespacedClassName($this->parseIdentifier($expr->class));
$className = $this->getClassEntryPtr($className);
return 'php::instanceOf(' . $this->parseExpr($expr->expr) . ', ' . $className . ')';
} else {
return 'php::instanceOf(' . $this->parseExpr($expr->expr) . ', ' . $this->identifierToStr($expr->class) . ')';
}
}
protected function parseCastInt(Expr\Cast\Int_ $node): string
{
return $this->convertIntExpr($this->parseExpr($node->expr));
}
protected function parseCastString(Expr\Cast\String_ $node): string
{
return $this->convertStringExpr($this->parseExpr($node->expr));
}
protected function parseCastBool(Expr\Cast\Bool_ $node): string
{
return $this->convertBoolExpr($this->parseExpr($node->expr));
}
protected function parseCastObject(Expr\Cast\Object_ $node): string
{
return $this->convertObjectExpr($this->parseExpr($node->expr));
}
protected function parseConstFetch(Expr\ConstFetch $expr, bool $scalar = false): string
{
if ($expr->name->getType() != 'Name' and !($expr->name instanceof Node\Name\FullyQualified)) {
abort($expr);
}
$name = $this->parseIdentifier($expr->name);
if ($this->isNameExpr($expr->name) and $this->hasConstant($name)) {
return $this->getConstant($name);
}
if ($name === 'null') {
return self::VALUE_NULL;
}
if ($name === 'true') {
return 'true';
}
if ($name === 'false') {
return 'false';
}
if ($name === 'PHP_EOL') {
return '"' . $this->escapeString(PHP_EOL) . '"';
}
if ($scalar) {
return constant($expr->name);
}
if ($this->isNameExpr($expr->name)) {
if (str_contains($name, '::')) {
$ns = explode('::', $name)[0];
$fullName = $this->getNamespacedClassName($ns[0]);
$ce = $this->getClassEntryPtr($fullName);
return 'php::constant(' . $ce . ', ' . $this->getLiteralString($ns[1]) . ')';
}
if ($this->isInternalConstant($name)) {
return 'php::constant(' . $this->getLiteralString($name) . ')';
}
if (isset($this->useAliases[$name])) {
$name = $this->useAliases[$name];
} else {
$fullName = $this->getNamespacedClassName($name);
if ($fullName) {
$name = $fullName;
}
}
return 'php::constant(nullptr, ' . $this->getLiteralString($name) . ')';
}
return 'php::constant("' . $this->escapeString($name) . '")';
}
protected function parseUnaryMinus(Expr\UnaryMinus $expr): string
{
$code = $this->parseExpr($expr->expr);
return '-' . $code;
}
protected function parseUnaryPlus(Expr\UnaryPlus $expr)
{
return $this->parseExpr($expr->expr);
}
protected function parseBinaryOpDiv(Expr\BinaryOp\Div $expr): string
{
$left = $this->parseIdentifier($expr->left);
$right = $this->parseIdentifier($expr->right);
return $left . ' / (' . $right . ')';
}
protected function parseBinaryOpMinus(Expr\BinaryOp\Minus $expr): string
{
return $this->parseBinaryOp($expr->left, $expr->right, '-');
}
protected function parseInterpolatedString(Node\Scalar\InterpolatedString $expr): string
{
$parts = $expr->parts;
$list = [];
foreach ($parts as $part) {
$list[] = $this->parseExpr($part);
}
return 'php::concat({' . implode(', ', $list) . '})';
}
protected function parseInterpolatedStringPart(Node\InterpolatedStringPart $expr): string
{
return '"' . $this->escapeString($expr->value) . '"';
}
protected function parseGlobal(Node\Stmt\Global_ $v): string
{
foreach ($v->vars as $v) {
$name = $this->parseVariable($v);
if (!$this->hasGlobalVar($name)) {
$this->addGlobalVar($name, self::TYPE_VAR);
}
if (!$this->hasScopeGlobalVar($name)) {
$this->addScopeGlobalVar($name, self::TYPE_VAR);
}
}
return '';
}
protected function getArgInfo(Node $arg, string $funcName, int $index): ArgInfo
{
if (!isset($this->functions[$funcName])) {
$this->fatalError($arg, "Function `{$funcName}` is undefined, you must adjust the order of function definition");
}
$funcDef = $this->functions[$funcName];
if (!array_key_exists($index, $funcDef->argInfoList)) {
$this->fatalError($arg, "Argument `{$index}` of function `{$funcName}` not found");
}
return $funcDef->argInfoList[$index];
}
protected function getReturnType(): string
{
return $this->functionDef->returnType;
}
protected function isInheritedFrom(string $class, string $expected): bool
{
$internal = ($this->isInternalClass($expected) or $this->isInternalInterface($expected));
while (true) {
if (strcasecmp($class, $expected) === 0) {
return true;
}
if (!$this->hasClass($class)) {
// 原生类继承自一个内置类,例如: UserError extends Exception ,然后 $expected 预期是 Throwable
// 这种情况,需要使用 ZendVM 获取继承关系
if ($this->isInternalClass($class) and $internal) {
return $class === $expected or is_subclass_of($class, $expected);
}
return false;
}
$classDef = $this->getClass($class);
if (!$classDef->extends) {
return false;
}
$class = $classDef->extends;
}
}
protected function getTypeConvertedArg(Node\Arg $arg, ArgInfo $argInfo): string
{
$expr = $this->parseArg($arg);
$type = $this->detectExprType($arg->value);
if ($argInfo->byRef) {
return $this->convertToRef($arg->value);
}
if ($argInfo->type === self::TYPE_OBJECT) {
if ($this->isVarExpr($arg->value)) {
$object = $this->parseVariable($arg->value);
if ($this->isTypedObject($object)) {
$class = $this->getObjectType($object);
if ($class and $argInfo->class and !$this->isInheritedFrom($class, $argInfo->class)) {
$this->fatalError($arg, "Argument `{$argInfo->name}` must be an instance of `{$argInfo->class}`, `{$class}` given");
}
}
}
return $this->convertObjectExpr($expr);
}
return $this->convertExprType($expr, $argInfo->type, $type);
}
protected function convertExprType(string $expr, $leftType, $rightType): string
{
if ($leftType === self::TYPE_FLOAT or $rightType === self::TYPE_FLOAT) {
return $this->convertFloatExpr($expr);
}
if ($leftType === self::TYPE_INT or $rightType === self::TYPE_INT) {
return $this->convertIntExpr($expr);
}
if ($leftType === self::TYPE_BOOL or $rightType === self::TYPE_BOOL) {
return $this->convertBoolExpr($expr);
}
return $expr;
}
protected function parseExit(Expr\Exit_ $node): string
{
if (!$node->expr) {
return 'php::exit(0)';
}
return 'php::exit(' . $this->parseIdentifier($node->expr) . ')';
}
protected function parseUnset(Node\Stmt\Unset_ $node): string
{
$vars = $node->vars;
$lines = [];
foreach ($vars as $var) {
$type = $var->getType();
if ($type === self::EXPR_ARRAY_DIM_FETCH) {
$array = $this->parseIdentifier($var->var);
$dim = $this->parseIdentifier($var->dim);
$lines[] = $array . '.offsetUnset(' . $dim . ');';
} elseif ($type === 'Expr_PropertyFetch') {
$object = $this->parseIdentifier($var->var);
$propName = $this->identifierToStr($var->name, literal: true);
$lines[] = $object . '.unsetProperty(' . $propName . ');';
} elseif ($type === self::EXPR_VARIABLE) {
$name = $this->parseIdentifier($var);
if (!$this->hasVar($name)) {
$this->errorUndefinedVariable($var);
}
$lines[] = "{$name}.unset();";
} else {
$this->fatalError($var, "Unsupported unset type `{$type}`");
}
}
return implode(PHP_EOL . $this->getIndent(), $lines);
}
protected function getPropertyIdentifier(Expr\PropertyFetch $expr, NodeAbstract $object, NodeAbstract $property): ?string
{
if ($this->isVarExpr($object) and $this->isIdExpr($property)) {
$objectName = $this->parseIdentifier($object);
$propertyName = $this->parseIdentifier($property);
$nativeProperty = null;
if ($objectName === 'this_') {
$nativeProperty = $this->findNativeProperty($object, $propertyName, $this->class, $this->namespace);
} elseif ($this->isTypedObject($objectName)) {
$className = $this->getObjectType($objectName);
$nativeProperty = $this->findNativeProperty($object, $propertyName, $className);
}
if ($nativeProperty) {
$expr->setAttribute('nativeProperty', $nativeProperty);
return $nativeProperty;
}
}
return $this->identifierToStr($property, literal: true);
}
protected function parsePropertyFetch(Expr\PropertyFetch $expr, bool $update = false): string
{
$object = $expr->var;
$property = $expr->name;
$id = $this->getPropertyIdentifier($expr, $object, $property);
return $this->parseIdentifier($object) . '.attr(' . $id . ', ' . $this->escapeBool($update) . ')';
}
protected function parseAssignOpShiftRight(Expr\AssignOp\ShiftRight $node): string
{
return $this->parseAssignOp($node, '>>=');
}
protected function parseAssignOpBitwiseXor(Expr\AssignOp\BitwiseXor $node): string
{
return $this->parseAssignOp($node, '^=');
}
protected function parseMagicConst(MagicConst $expr): string
{
$class = ($this->namespace ? $this->namespace . '\\' : '') . $this->class;
$function = ($this->namespace ? $this->namespace . '\\' : '') . $this->function;
switch ($expr->getType()) {
case 'Scalar_MagicConst_Dir':
return '"' . $this->escapeString($this->dir) . '"';
case 'Scalar_MagicConst_File':
return '"' . $this->escapeString($this->file) . '"';
case 'Scalar_MagicConst_Line':
return (string) $expr->getStartLine();
case 'Scalar_MagicConst_Function':
return '"' . $this->escapeString($function) . '"';
case 'Scalar_MagicConst_Class':
return '"' . $this->escapeString($class) . '"';
case 'Scalar_MagicConst_Method':
return '"' . $this->escapeString($class) . '::' . $this->escapeString($this->method) . '"';
default:
abort($expr);
}
}
protected function parseForeachArray(Foreach_ $node, string $iteratorVar): string
{
$code = 'for (auto iter = ' . $iteratorVar . '.begin(); iter != ' . $iteratorVar . '.end(); ++iter) {' . PHP_EOL;
$this->indentLevel++;
if ($node->keyVar) {
$keyVar = $this->parseIdentifier($node->keyVar);
$this->checkVar($node, $keyVar);
$code .= $this->getIndent() . ' ' . $keyVar . ' = iter.key();' . PHP_EOL;
}
if ($node->byRef and !$this->isVarExpr($node->valueVar)) {
$this->fatalError($node, 'Foreach by reference only supports variable as value');
}
if ($node->valueVar->getType() == self::EXPR_ARRAY_DIM_FETCH) {
$array = $this->parseIdentifier($node->valueVar->var);
if (!$this->hasVar($array) or $node->valueVar->dim === null) {
abort($node->valueVar);
}
$dim = $this->parseIdentifier($node->valueVar->dim);
$code .= $this->getIndent() . "{$array}.offsetSet({$dim}, iter.value());";
} else {
$valueVar = $this->parseIdentifier($node->valueVar);
if ($node->byRef) {
if (!$this->hasVar($valueVar)) {
$this->addLocalVar($valueVar, self::TYPE_REF);
} elseif ($this->getVarType($valueVar) !== self::TYPE_REF) {
$this->fatalError($node, 'Cannot assign value to reference of type');
}
$code .= $this->getIndent() . ' ' . $valueVar . ' = iter.valueRef();' . PHP_EOL;
} else {
$this->checkVar($node, $valueVar);
$code .= $this->getIndent() . ' ' . $valueVar . ' = iter.value();' . PHP_EOL;
}
}
$body = $this->parseStmts($node->stmts);
$this->indentLevel--;
$code .= $this->parseBeforeStmtLines() . PHP_EOL;
$code .= $body . PHP_EOL;
$code .= $this->getIndent() . '}';
return $code;
}
protected function parseForeach(Foreach_ $node): string
{
if ($this->isVarExpr($node->expr)) {
$name = $this->parseIdentifier($node->expr);
if ($this->hasVar($name)) {
$type = $this->getVarType($name);
if ($type === self::TYPE_OBJECT) {
if ($node->byRef) {
$this->fatalError($node, 'Cannot use & with foreach');
}
return $this->parseForeachObject($node);
}
}
}
$iteratorVar = $this->genTmpVarName();
$code = '';
$expr = $this->parseIdentifier($node->expr);
$code .= $this->parseBeforeStmtLines() . PHP_EOL;
$code .= self::TYPE_ARRAY . " {$iteratorVar} = " . $expr . ';' . PHP_EOL;
$code .= $this->parseForeachArray($node, $iteratorVar);
return $code;
}
protected function formatCppCode(string $file): void
{
$cmd = 'cd ' . $this->rootPath . ' && clang-format -i ' . $file;
$this->climate->info('format: ' . $this->getRelativePath($file));
$this->climate->comment($cmd);
shell_exec($cmd);
}
/**
* 为了兼容已有代码,默认不使用原生类型,而是将整数和浮点数作为 php 变量处理
* 原生 int/float/bool 类型,是不支持自动转换的,例如如果 int 计算超过最大值后,会自动转为 float,除法若不能除尽,则会转为 float
* 某些情况下高性能计算,可能需要使用原生类型,使用 $a = std::int(0) 来显式地使用原生类型
*/
protected function getNativeType(string $type): string
{
return $this->nativeTypes ? $type : self::TYPE_VAR;
}
protected function detectConstType($expr): string
{
$name = $this->parseIdentifier($expr->name);
if ($this->hasConstant($name)) {
return $this->getConstantType($name);
}
if ($name === 'true') {
return $this->getNativeType(self::TYPE_BOOL);
}
if ($name === 'false') {
return $this->getNativeType(self::TYPE_BOOL);
}
if ($name === 'NAN' or $name === 'INF') {
return $this->getNativeType(self::TYPE_FLOAT);
}
return self::TYPE_VAR;
}
protected function parseSwitch(Node\Stmt\Switch_ $v): string
{
$cond = $v->cond;
$tmp_var = $this->genTmpVarName();
$type = $this->detectExprType($cond);
if ($this->isVarExpr($cond)) {
$this->requireVar($v, $this->parseIdentifier($cond));
}
$var_def = $type . ' ' . $tmp_var . ' = ' . $this->parseExpr($cond) . ';' . PHP_EOL;
// 保存作用域,switch 可能会解析失败,在这个过程中会增加变量,需重置
$localVars = $this->context->localVars;
$code = $this->parseBeforeStmtLines() . PHP_EOL;
if ($type === self::TYPE_INT or $type === self::TYPE_BOOL) {
$code .= 'switch (' . $tmp_var . ') {' . PHP_EOL;
$this->indentLevel++;
foreach ($v->cases as $case) {
if (empty($case->cond)) {
$code .= $this->getIndent() . 'default: {' . PHP_EOL;
} else {
$condType = $case->cond->getType();
if ($condType !== 'Scalar_Int' and $condType !== 'Scalar_Float') {
$this->context->localVars = $localVars;
goto _fail;
}
$code .= $this->getIndent() . 'case ' . $this->parseScalar($case->cond) . ': {' . PHP_EOL;
}
$this->indentLevel++;
$code .= $this->parseStmts($case->stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '}' . PHP_EOL;
}
$this->indentLevel--;
$code .= $this->getIndent() . '}';
return $var_def . $code;
}
_fail:
if (count($v->cases) == 1) {
if (!empty($v->cases[0]->cond)) {
$code = 'if (' . $tmp_var . '==' . $this->parseIdentifier($v->cases[0]->cond) . ') {' . PHP_EOL;
} else {
$code = 'if (1) {' . PHP_EOL;
}
$code .= $this->parseStmts($v->cases[0]->stmts);
$code .= $this->getIndent() . '}';
return $var_def . $code;
}
$code = 'do {' . PHP_EOL;
$this->indentLevel++;
$condList = [];
$defaultCase = false;
$defaultOnly = true;
foreach ($v->cases as $case) {
if (empty($case->cond)) {
$defaultCase = true;
} else {
$condList[] = $tmp_var . '==' . $this->parseIdentifier($case->cond);
}
$this->indentLevel++;
$stmts = $case->stmts;
if (empty($stmts)) {
continue;
}
if (count($stmts) === 1 and $stmts[0] instanceof Node\Stmt\Block) {
$stmts = $stmts[0]->stmts;
}
$lastExpr = end($stmts);
if (!$this->isReturnExpr($lastExpr)
and !$this->isExitExpr($lastExpr)
and !$this->isBreakExpr($lastExpr)
and !$this->isThrowExpr($lastExpr)
) {
$this->fatalError($case, 'switch case must end with return/break/exit/throw, ' . $lastExpr->getType() . ' given');
}
if ($defaultCase) {
$else = $defaultOnly ? '' : 'else';
$code .= $this->getIndent() . $else . ' {' . PHP_EOL;
} else {
$code .= $this->getIndent() . 'if (' . implode(' || ', $condList) . ') {' . PHP_EOL;
$defaultOnly = false;
$condList = [];
}
$code .= $this->parseStmts($stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '}' . PHP_EOL;
}
$this->indentLevel--;
$code .= $this->getIndent() . '} while (0);';
return $var_def . $code;
}
protected function parseStatic(Node\Stmt\Static_ $v): string
{
$list = [];
foreach ($v->vars as $var) {
$varName = $this->escapeVarName($var->var->name);
$type = $var->default ? $this->detectExprType($var->default) : self::TYPE_VAR;
$globalVar = $this->addStaticVar($var->var, $varName, $type);
$list[] = self::TYPE_VAR . ' &' . $varName . ' = ' . $this->escapeGlobalVar($globalVar) . ';';
if ($var->default) {
$initState = self::STATIC_VAR . $varName . '_initialized';
$initCode = $this->getIndent() . 'static bool ' . $initState . ' = false;';
$initCode .= $this->getIndent() . "if (!{$initState}) { \n";
$this->indentLevel++;
$initCode .= $this->getIndent() . "{$initState} = true;\n";
$initCode .= $this->genLambdaCall(function () use ($var, $varName) {
return $this->getIndent() . $varName . ' = ' . $this->parseExpr($var->default) . ';';
});
$this->indentLevel--;
$initCode .= $this->getIndent() . '}';
$list[] = $initCode;
}
}
return implode(PHP_EOL . $this->getIndent(), $list);
}
protected function parseEnum(Node\Stmt\Enum_ $v): string
{
return 'php::eval("' . $this->escapeString($this->genEmbeddedCode($v)) . '");';
}
protected function parseEval(Expr\Eval_ $expr): string
{
return 'php::eval(' . $this->parseIdentifier($expr->expr) . ')';
}
protected function parseInclude(Expr\Include_ $expr): string
{
switch ($expr->type) {
case Expr\Include_::TYPE_INCLUDE:
$type = 'php::INCLUDE';
break;
case Expr\Include_::TYPE_INCLUDE_ONCE:
$type = 'php::INCLUDE_ONCE';
break;
case Expr\Include_::TYPE_REQUIRE:
$type = 'php::REQUIRE';
break;
case Expr\Include_::TYPE_REQUIRE_ONCE:
$type = 'php::REQUIRE_ONCE';
break;
default:
$this->fatalError($expr, 'Invalid include type');
}
return 'php::include(' . $this->parseIdentifier($expr->expr) . ', ' . $type . ')';
}
protected function parseBreak(Node\Stmt\Break_ $v): string
{
if (!$this->context->inLoop) {
$this->fatalError($v, 'Cannot break outside loop');
}
$num = $v->num;
if ($num) {
$value = $this->parseIdentifier($num);
if ($value > 1) {
$this->fatalError($v, 'Cannot break more than 1 level');
}
}
return 'break;';
}
protected function parseContinue(Node\Stmt\Continue_ $v): string
{
if (!$this->context->inLoop) {
$this->fatalError($v, 'Cannot continue outside loop');
}
if ($v->num and $v->num->value > 1) {
$this->fatalError($v, 'Cannot continue more than 1 level');
}
return 'continue;';
}
protected function parseScalarFloat(Node\Scalar\Float_ $expr): string
{
$value = $expr->value;
if (is_nan($value)) {
return self::VALUE_NAN;
}
if (is_infinite($value)) {
return $value > 0 ? self::VALUE_INF : '-' . self::VALUE_INF;
}
if (floor($value) == $value && abs($value) < 1e15) {
return number_format($value, 1, '.', '');
}
return sprintf('%.' . $this->floatPrecision . 'g', $value);
}
protected function parseIsset(Expr\Isset_ $expr): string
{
$vars = $expr->vars;
if (count($vars) > 1) {
$list = [];
foreach ($vars as $var) {
$list[] = $this->parseChainedExpr($var, self::OP_ISSET);
}
return '(' . implode(' && ', $list) . ')';
}
return $this->parseChainedExpr($vars[0], self::OP_ISSET);
}
protected function parseEmpty(Expr\Empty_ $expr): string
{
return $this->parseChainedExpr($expr->expr, self::OP_EMPTY);
}
/**
* 左值只能为变量、数组、对象属性、对象静态属性
*/
protected function checkLeftValue(NodeAbstract $expr): void
{
if (!$this->isVarExpr($expr) && !$this->isArrayDimFetch($expr) && !$this->isPropertyFetch($expr) && !$this->isStaticPropertyFetch($expr)) {
$this->fatalError($expr, 'The left value of assignment operation can only be variable, array item, object property, class static property');
}
}
protected function getChainedFunc(string $op): string
{
return match ($op) {
self::OP_ISSET => 'php::exists',
self::OP_NOT_EMPTY => 'php::notEmpty',
default => 'php::' . $op,
};
}
protected function parseChainedExpr(NodeAbstract $node, string $op, bool $getValue = false): string
{
// AOT 编译器不允许操作未定义的变量,PHP 的 isset($var) 可能 $var 未定义
$this->checkVarMustExist($node, $this->parseIdentifier($node));
$fn = $this->getChainedFunc($op);
$expr = $node;
if ($this->isVarExpr($expr)) {
return $fn . '(' . $this->parseExpr($expr) . ')';
}
// 单属性读取(非链式)
if ($this->isPropertyFetch($expr) and $this->isVarExpr($expr->var) and $this->isIdExpr($expr->name)) {
$prop = $this->parsePropertyFetch($expr);
if ($expr->hasAttribute('nativeProperty')) {
return $fn . '(' . $prop . ')';
}
}
if ($this->isStaticPropertyFetch($expr) and $this->isNameExpr($expr->class) and $this->isIdExpr($expr->name)) {
$prop = $this->parseStaticPropertyFetch($expr);
if ($expr->hasAttribute('nativeProperty')) {
return $fn . '(' . $prop . ')';
}
}
$list = [];
while (true) {
if ($this->isArrayDimFetch($expr)) {
if ($expr->dim === null) {
$this->fatalError($expr, 'Cannot use [] for reading');
}
$dim = $this->parseIdentifier($expr->dim);
$list[] = '{php::ArrayDimFetch, ' . self::TYPE_VAR . '(' . $dim . ')}';
} elseif ($this->isPropertyFetch($expr)) {
$name = $this->identifierToStr($expr->name, literal: true);
$list[] = '{php::PropertyFetch, ' . self::TYPE_VAR . '(' . $name . ')}';
} elseif ($this->isVarExpr($expr)) {
$var = $this->parseIdentifier($expr);
break;
} else {
$var = $this->genTmpVarName();
$this->addLocalVar($var, self::TYPE_VAR);
$this->context->beforeStmtLines[] = $var . '=' . $this->parseExpr($expr) . ';';
break;
}
$expr = $expr->var;
}
$list = array_reverse($list);
if ($getValue) {
$result = $this->addTmpVar(self::TYPE_VAR);
$node->setAttribute('chainOpResult', $result);
return $fn . '(' . $var . ', {' . implode(', ', $list) . '}, ' . $result . ')';
} else {
return $fn . '(' . $var . ', {' . implode(', ', $list) . '})';
}
}
protected function parseCastArray(Expr\Cast\Array_ $expr): string
{
return $this->convertArrayExpr($this->parseIdentifier($expr->expr));
}
protected function hasGlobalVar(string $name): bool
{
return array_key_exists($name, $this->globalVars);
}
protected function hasScopeGlobalVar(string $name): bool
{
return array_key_exists($name, $this->context->globalVars);
}
protected function hasStaticVar(string $name): bool
{
return array_key_exists($name, $this->context->staticVars);
}
protected function parseCastDouble(mixed $expr): string
{
return $this->convertFloatExpr($this->parseIdentifier($expr->expr));
}
protected function detectFuncCallReturnType(string $name): string
{
if ($this->isInternalFunction($name)) {
$returnType = Reflection::getFunctionReturnType($name);
// void 类型将被忽略,类型推测仅用于赋值操作的右值,即使返回值为 void , 赋值操作也应该继续运行,右值会被当做 null
// 例如 $a = var_dump('hello'); 虽然 var_dump 返回值为 void ,但是 $a 的类型是 mixed,值为 null
if ($returnType and $returnType !== 'void') {
return $this->getTypeFromZendType($returnType);
}
}
return self::TYPE_VAR;
}
protected function detectMethodCallReturnType(string $class, string $method): string
{
$returnType = Reflection::getMethodReturnType($class, $method);
if ($returnType and $returnType !== 'void') {
return $this->getTypeFromZendType($returnType);
}
return self::TYPE_VAR;
}
protected function convertExprFromType(string $type, string $expr): string
{
if ($type === self::TYPE_FLOAT) {
return $this->convertFloatExpr($expr);
}
if ($type === self::TYPE_INT) {
return $this->convertIntExpr($expr);
}
if ($type === self::TYPE_BOOL) {
return $this->convertBoolExpr($expr);
}
return $expr;
}
protected function convertVarType($var, $expr): string
{
if ($this->hasVar($var)) {
return $this->convertExprFromType($this->getVarType($var), $expr);
}
return $expr;
}
protected function convertToRef(NodeAbstract $expr): string
{
$this->checkLeftValue($expr);
$var = $this->parseIdentifier($expr);
if ($this->isVarExpr($expr) and $this->isNativeTypeVar($var)) {
$this->context->localVars[$var] = self::TYPE_VAR;
}
return $this->parseIdentifier($expr) . '.toReference()';
}
protected function parseAssignRef(Expr\AssignRef $expr): string
{
$this->context->inAssignExpr = true;
$left = $this->parseIdentifier($expr->var);
$this->context->inAssignExpr = false;
if ($this->isVarExpr($expr->var)) {
if (!$this->hasVar($left)) {
$this->addLocalVar($left, self::TYPE_REF);
} else {
$type = $this->getVarType($left);
if ($type !== self::TYPE_REF) {
$this->fatalError($expr, 'Cannot assign reference to variable of type ' . $type);
}
}
}
$tmpVar = $this->addTmpVar(self::TYPE_REF);
$rightExpr = '';
if ($this->isVarExpr($expr->expr)) {
$rightExpr = $tmpVar . ' = ' . $this->parseIdentifier($expr->expr) . '.toReference()';
} elseif ($this->isPropertyFetch($expr->expr)) {
$left = $this->parseIdentifier($expr->var);
$object = $this->parseExpr($expr->expr->var);
$prop = $this->identifierToStr($expr->expr->name);
$rightExpr = $tmpVar . ' = ' . $object . '.attrRef(' . $prop . ')';
} elseif ($this->isArrayDimFetch($expr->expr)) {
$left = $this->parseIdentifier($expr->var);
$array = $this->parseIdentifier($expr->expr->var);
if ($expr->expr->dim == null) {
$this->fatalError($expr, 'Cannot assign reference to array dim fetch without dim');
}
$rightExpr = $tmpVar . ' = ' . $array . '.itemRef(' . $this->parseIdentifier($expr->expr->dim) . ')';
} else {
$this->fatalError($expr, 'Cannot assign reference to ' . $this->parseIdentifier($expr->expr));
}
$this->context->beforeStmtLines[] = $rightExpr . ';';
return $left . ' = &' . $tmpVar;
}
protected function parseMethodCall(Expr\MethodCall $expr): string
{
$class = '';
$object = $this->parseIdentifier($expr->var);
if ($this->isVarExpr($expr->var)) {
if (!$this->hasVar($object)) {
$this->errorUndefinedVariable($expr->var);
}
if ($this->isTypedObject($object)) {
$class = $this->getObjectType($object);
}
}
$magicMethod = false;
$method = $this->identifierToStr($expr->name, literal: true);
// 可转为原生调用的 MethodCall
if ($this->isVarExpr($expr->var) and $this->isNamedMethod($expr->name)) {
$this->context->beforeStmtLines[] = '// Method Call: ' . $object . '->' . $this->parseIdentifier($expr->name) . '()';
try {
$nativeFunc = $this->findNativeMethod($expr, $object, $this->parseIdentifier($expr->name));
if ($nativeFunc) {
$expr->setAttribute('nativeCall', $nativeFunc);
try {
return $this->parseNativeMethodCall($object, $nativeFunc, $expr->args);
} catch (PlaceHolder) {
return $this->genPlaceHolder($this->genArray([$object, $method]));
}
}
} catch (DynamicCall) {
$magicMethod = true;
}
}
if ($this->isNamedMethod($expr->name)) {
$funcName = $this->parseIdentifier($expr->name);
} else {
$funcName = '';
}
if ($class and $funcName and !$magicMethod) {
$methodPtr = $this->getMethodPtr($class, $funcName);
} else {
$methodPtr = $method;
}
if ($object === 'this_' or $object === 'self' or $object === 'static') {
$this->methodDef->hasDynamicCall = true;
}
if (empty($expr->args)) {
return $object . '.call(' . $methodPtr . ')';
}
try {
return $object . '.call(' . $methodPtr . ', ' . $this->parseCallArgs($expr->args, $funcName, $class) . ')';
} catch (PlaceHolder) {
return $this->genPlaceHolder($this->genArray([$object, $method]));
}
}
protected function identifierToStr(NodeAbstract $node, bool $require = true, bool $literal = false): string
{
$id = $this->parseIdentifier($node);
if ($this->isVarExpr($node)) {
if ($require) {
$this->requireVar($node, $id);
}
return $id;
}
/*
* 对 static 的支持存在问题,静态编译时无法获得实际运行时的子类名,所以只能使用 self
* self 是在编译期确定的,而 static 是运行时确定的,但使用 AOT 编译为可执行文件后,运行时类的名称是无法确定的
*/
if ($id === 'self') {
$id = $this->getNamespacedClassName($this->class);
} elseif ($id === 'static') {
return 'php_get_called_class(this_)';
}
if ($this->isNameExpr($node) or $this->isIdExpr($node)) {
return $literal ? $this->getLiteralString($id) : $this->genCharPtr($id, true);
}
return $id;
}
protected function requireVar($node, string $var): void
{
if (!$this->hasVar($var)) {
$this->fatalError($node, 'The variable `' . $var . '` is not defined');
}
}
protected function parseStaticCall(Expr\StaticCall $expr): string
{
$self = false;
$callScope = [];
$class = $this->parseIdentifier($expr->class);
if ($this->isVarExpr($expr->class) or $this->isVarExpr($expr->name)) {
$var = $class;
if ($this->isTypedObject($var)) {
$class = $this->getObjectType($var);
goto _do_call;
}
if ($this->getVarType($var) == self::TYPE_OBJECT) {
$fn = 'php::concat({' . $var . '.getClassName(), "::", ' . $this->identifierToStr($expr->name) . '})';
} else {
$fn = 'php::concat({' . $this->identifierToStr($expr->class) . ', "::", ' . $this->identifierToStr($expr->name) . '})';
}
$placeHolder = $fn;
} elseif ($class === 'static') {
$methodPtr = $this->identifierToStr($expr->name, literal: true);
$fn = 'php_get_called_ce(this_), php::getMethod(php_get_called_ce(this_), ' . $methodPtr . ')';
$this->context->beforeStmtLines[] = '// Static Method Call: static::' . $this->parseIdentifier($expr->name) . '()';
$placeHolder = $this->genArray(['php_get_called_class(this_)', $methodPtr]);
} elseif ($this->isNameExpr($expr->class)) {
if ($class === 'self') {
$class = $this->class;
$self = true;
} elseif ($class === 'parent') {
return $this->parseParentMethodCall($expr);
}
$class = $this->getNamespacedClassName($class);
_do_call:
$method = $this->parseIdentifier($expr->name);
$dynamicCall = false;
$this->context->beforeStmtLines[] = '// Static Method Call: ' . $class . '::' . $method . '()';
if ($this->isNameExpr($expr->class) and $this->isIdExpr($expr->name)) {
$callScope = [$this->genCharPtr($class, true), $this->genCharPtr($method)];
}
if ($callScope) {
$nativeFunc = $this->getNativeMethod($expr, $class, $method);
// 存在 Native 类,但是没有找到方法,可能是动态调用
if (!$nativeFunc and $this->hasClass($class) and $this->getNativeMethod($expr, $class, '__callStatic', false)) {
$dynamicCall = true;
}
if ($nativeFunc) {
try {
$args = $this->parseNativeCallArgs($expr->args, $nativeFunc);
$expr->setAttribute('nativeCall', $nativeFunc);
} catch (PlaceHolder) {
return $this->genPlaceHolder($this->genArray($callScope));
}
// 在方法定义中使用了当前类的方法 self::method(),依然应该传递 this_ 指针
if ($this->methodDef and $self) {
$object = 'this_';
} else {
$object = $this->getCeWrapper($class);
}
if ($args) {
return self::PREFIX . $nativeFunc . '(' . $object . ', ' . $args . ')';
} else {
return self::PREFIX . $nativeFunc . '(' . $object . ')';
}
}
}
if ($dynamicCall) {
$fn = $this->getLiteralString($class . '::' . $method);
} else {
$ce = $this->getClassEntryPtr($class);
$fn = $ce . ', ' . $this->getFuncPtr($class . '::' . $method);
}
$placeHolder = $this->genArray($callScope);
} else {
$fn = 'php::concat({' . $this->identifierToStr($expr->class) . ', "::", ' . $this->identifierToStr($expr->name) . '})';
$placeHolder = $fn;
}
$call = 'php::call';
if (empty($expr->args)) {
return $call . '(' . $fn . ')';
}
try {
$callArgs = $this->parseCallArgs($expr->args);
return $call . '(' . $fn . ', ' . $callArgs . ')';
} catch (PlaceHolder) {
return $this->genPlaceHolder($placeHolder);
}
}
protected function findNativeStaticProperty(Expr\StaticPropertyFetch $expr, ?string &$class): ?string
{
if ($this->isNameExpr($expr->class) and $this->isIdExpr($expr->name)) {
$class = $this->parseIdentifier($expr->class);
$propertyName = $this->parseIdentifier($expr->name);
if ($class === 'self') {
$class = $this->getFullClassName();
} elseif ($class === 'parent') {
if (!$this->classDef->extends) {
$this->fatalError($expr, 'Cannot access parent:: when current class does not extend any class');
}
$class = $this->classDef->extends;
}
$nativeProperty = $this->findNativeProperty($expr, $propertyName, $class, $this->namespace, true);
if ($nativeProperty) {
$expr->setAttribute('nativeProperty', $nativeProperty);
return $nativeProperty;
}
}
return null;
}
/**
* @param NodeAbstract $expr 仅用于输出错误日志
*/
protected function findNativeProperty(NodeAbstract $expr, string $property, string $class, string $namespace = '', bool $static = false): ?string
{
$findClass = $class;
if ($namespace) {
$findClass = $namespace . '\\' . $class;
}
$scope = $this->class ? ltrim($namespace . '\\' . $class, '\\') : '';
while (true) {
if ($this->hasClass($findClass)) {
$classDef = $this->getClass($findClass);
if ($classDef->hasProperty($property)) {
$propertyDef = $classDef->getProperty($property);
// 获取动态属性,但找到了静态属性,或者获取静态属性,但是是动态属性,直接返回 null
if ((!$static and $propertyDef->isStatic()) or ($static and !$propertyDef->isStatic())) {
return null;
}
if ($propertyDef->isPublic()) {
return $this->getPropertyOffset($classDef->getNamespacedName(false), $property);
}
if ($propertyDef->isProtected()) {
if ($scope) {
return $this->getPropertyOffset($classDef->getNamespacedName(false), $property);
}
$this->fatalError($expr, "Cannot access protected property `{$property}` of class `{$class}`");
} else {
if ($scope === $findClass) {
return $this->getPropertyOffset($classDef->getNamespacedName(false), $property);
}
$this->fatalError($expr, "Cannot access private property `{$property}` of class `{$class}`");
}
} elseif ($classDef->extends) {
$findClass = $classDef->extends;
continue;
}
}
break;
}
return null;
}
protected function parseNativeStaticPropertyFetch(Expr\StaticPropertyFetch $expr): string|bool
{
$nativeProp = $this->findNativeStaticProperty($expr, $class);
if ($nativeProp) {
$classPtr = $this->getClassEntryPtr($class);
return 'php::getStaticProperty(' . $classPtr . ', ' . $nativeProp . ')';
}
return false;
}
protected function parseStaticPropertyFetch(Expr\StaticPropertyFetch $expr): string
{
$native = $this->parseNativeStaticPropertyFetch($expr);
if ($native) {
return $native;
}
return 'php::getStaticProperty(' . $this->identifierToStr($expr->class) . ', ' . $this->identifierToStr($expr->name) . ')';
}
protected function parseClassConstFetch(Expr\ClassConstFetch $expr): string
{
$class = $this->parseIdentifier($expr->class);
$self = false;
if ($class === 'self' or $class === 'this_') {
$self = true;
$class = $this->class;
}
$const = $this->escapeString($this->parseIdentifier($expr->name));
if ($class === 'static') {
if (!$this->methodDef) {
$this->fatalError($expr, "The 'static' keyword can only be used as the class name in class methods");
}
if ($const === 'class') {
return 'php_get_called_class(this_)';
} else {
return 'php::constant(php_get_called_ce(this_), ' . $this->getLiteralString($const) . ')';
}
}
$class = $this->getNamespacedClassName($class);
if ($const === 'class') {
return '"' . $this->escapeString($class) . '"';
}
if (($self or $this->isNameExpr($expr->class)) and $this->isIdExpr($expr->name)) {
if ($this->hasClass($class)) {
$classDef = $this->getClass($class);
if ($classDef->enum) {
$ce = $this->getClassEntryPtr($class);
return 'php::getEnumCase(' . $ce . ', ' . $this->getLiteralString($const) . ')';
}
$nativeConst = $this->findNativeClassConst($expr, $class, $const);
if ($nativeConst) {
return $nativeConst;
}
}
$ce = $this->getClassEntryPtr($class);
return 'php::constant(' . $ce . ', ' . $this->getLiteralString($const) . ')';
}
$name = $class . '::' . $const;
$name = $this->getLiteralString($name);
return 'php::constant(' . $name . ')';
}
protected function parseThrow(mixed $expr): string
{
if ($this->isNewExpr($expr->expr)) {
$ex = $this->parseExpr($expr->expr);
} elseif ($this->isVarExpr($expr->expr)) {
$ex = $this->parseIdentifier($expr->expr);
if ($this->getVarType($ex) != self::TYPE_OBJECT) {
goto _to_object;
}
} else {
$ex = $this->parseIdentifier($expr->expr);
_to_object:
$ex = $this->convertObjectExpr($ex);
}
return 'php::throwException(' . $ex . ')';
}
protected function parseTryCatch(mixed $v): string
{
$code = $this->parseBeforeStmtLines() . PHP_EOL;
$code .= 'try {';
$stmts = $v->stmts;
$code .= PHP_EOL;
$this->indentLevel++;
$code .= $this->parseStmts($stmts);
$this->indentLevel--;
$code .= $this->getIndent() . '}' . PHP_EOL;
$catches = $v->catches;
$finally = $v->finally;
$exVar = $this->genTmpVarName();
$this->addLocalVar($exVar, self::TYPE_OBJECT);
$code .= 'catch(zend_object *_ex) {' . PHP_EOL;
$code .= $this->getIndent() . $exVar . ' = php::catchException();' . PHP_EOL;
if ($catches) {
$this->indentLevel++;
foreach ($catches as $catch) {
$code .= $this->parseCatch($catch, $exVar);
}
$this->indentLevel--;
}
$code .= '}' . PHP_EOL;
if ($finally) {
$code .= $this->parseStmts($finally->stmts);
$code .= PHP_EOL;
}
$code .= 'if (' . $exVar . ') {' . PHP_EOL . $this->getIndent() . 'php::throwException(' . $exVar . ');' . PHP_EOL . $this->getIndent() . '}';
return $code;
}
protected function parseCatch(Node\Stmt\Catch_ $catch, string $exVar): string
{
$types = $catch->types;
$var = $catch->var ? $this->parseIdentifier($catch->var) : $this->genTmpVarName();
if (!$this->hasVar($var)) {
$this->addLocalVar($var, self::TYPE_OBJECT);
}
$code = $this->getIndent() . $var . ' = ' . $exVar . ';' . PHP_EOL;
$code .= $this->parseBeforeStmtLines() . PHP_EOL;
$code .= $this->getIndent() . 'if (' . $var . ' && ';
foreach ($types as $type) {
$code .= 'php::instanceOf(' . $var . ', "' . $this->parseIdentifier($type) . '")';
}
$code .= ') {' . PHP_EOL;
$this->indentLevel++;
$code .= $this->parseStmts($catch->stmts);
$code .= $this->getIndent() . "{$exVar}.unset();" . PHP_EOL;
$this->indentLevel--;
$code .= $this->getIndent() . '}';
return $code;
}
protected function parseShellExec(Expr\ShellExec $expr): string
{
$list = [];
foreach ($expr->parts as $part) {
$list[] = $this->identifierToStr($part);
}
return 'php::shell_exec(php::concat({' . implode(', ', $list) . '}))';
}
protected function parseGoto(Node\Stmt\Goto_ $v): string
{
return 'goto ' . $v->name->name . ';';
}
protected function parseLabel(Node\Stmt\Label $v): string
{
return $v->name->name . ':';
}
protected function parseModifiers(int $flags): int
{
if (!($flags & Modifiers::PRIVATE) and !($flags & Modifiers::PROTECTED)) {
$flags |= Modifiers::PUBLIC;
}
return $flags;
}
protected function parseConstDef(mixed $v2): string
{
foreach ($v2->consts as $const) {
$name = $this->parseIdentifier($const->name);
$value = $this->parseIdentifier($const->value);
if ($this->namespace) {
$name = $this->namespace . '\\' . $name;
}
$this->addConstant($name, $value);
}
return '';
}
protected function addConstant(string $name, string $value): void
{
$constInfo = new \stdClass();
$constInfo->value = $value;
$constInfo->type = $this->detectStrValueType($value);
$constInfo->namespace = $this->namespace;
$constInfo->name = $name;
$this->constants[$this->escapeNamespace($name)] = $constInfo;
}
protected function hasConstant(string $name): bool
{
return isset($this->constants[$this->escapeNamespace($name)]);
}
protected function getConstant(string $name): string
{
return $this->escapeNamespace($name);
}
protected function getConstantType(string $name): string
{
return $this->constants[$this->escapeNamespace($name)]->type;
}
protected function detectStrValueType(mixed $constant): string
{
if ($this->isIntStr($constant)) {
return self::TYPE_INT;
}
if ($this->isFloatStr($constant)) {
return self::TYPE_FLOAT;
}
if ($this->isBoolStr($constant)) {
return self::TYPE_BOOL;
}
return self::TYPE_VAR;
}
protected function isArrayVar($var): bool
{
return $this->isVarExpr($var) and $this->hasVar($var->name) and $this->getVarType($var->name) == self::TYPE_ARRAY;
}
protected function setBuildDir(string $string): void
{
$this->buildDir = $string;
if (!is_dir($this->buildDir)) {
mkdir($this->buildDir, 0777, true);
}
}
protected function isStubFile(string $file): bool
{
return str_ends_with($file, '.stub.php');
}
/**
* @throws \Exception
*/
protected function loadFile(string $file): string
{
if (!file_exists($file)) {
throw new \Exception('File not exists: ' . $file);
}
$phpCode = file_get_contents($file);
if (!$phpCode) {
throw new \Exception('Can not read file: ' . $file);
}
$this->file = realpath($file);
$this->dir = dirname($this->file);
$this->stubFile = $this->isStubFile($file);
return $phpCode;
}
protected function parseDeclare(mixed $v): void
{
$declares = $v->declares;
foreach ($declares as $declare) {
$key = $this->parseIdentifier($declare->key);
$value = $this->parseIdentifier($declare->value);
if ($key === 'ticks') {
$this->fatalError($v, 'declare(ticks=1) is not supported');
} elseif ($key === 'encoding') {
if (strtolower($value) !== 'utf-8') {
$this->fatalError($v, 'declare(encoding="' . $value . '") is not supported, only UTF-8 is supported');
}
} elseif ($key === 'strict_types') {
$this->strictTypes = boolval(intval($value));
} else {
$this->fatalError($v, 'declare(' . $key . '=' . $value . ') is not supported');
}
}
}
protected function parseUse(Node\Stmt\Use_ $v2): string
{
$code = '';
foreach ($v2->uses as $use) {
$id = $this->parseIdentifier($use->name);
if ($use->type === Node\Stmt\Use_::TYPE_FUNCTION) {
$lastIndex = strrpos($id, '\\');
$fn = substr($id, $lastIndex + 1);
$ns = substr($id, 0, $lastIndex);
$this->useFunctions[$fn] = $ns;
} else {
if ($id === 'native_types') {
$this->nativeTypes = true;
} else {
$this->useNamespaces[] = $id;
if ($use->alias) {
$this->useAliases[$use->alias->toString()] = $id;
}
}
}
}
return $code;
}
protected function parseErrorSuppress(Expr\ErrorSuppress $expr): string
{
$tmpVar = $this->genTmpVarName();
$this->context->beforeStmtLines[] = 'auto ' . $tmpVar . ' = EG(error_reporting);';
$this->context->beforeStmtLines[] = 'php::call(' . $this->getFuncPtr('error_reporting') . ', {E_FATAL_ERRORS});';
$code = $this->parseExpr($expr->expr);
$this->context->afterStmtLines[] = 'php::call(' . $this->getFuncPtr('error_reporting') . ', {' . $tmpVar . '});';
return $code;
}
protected function checkVar(NodeAbstract $node, string $name): void
{
if (!$this->hasVar($name)) {
$this->addLocalVar($name, self::TYPE_VAR);
} else {
if ($this->getVarType($name) !== self::TYPE_VAR) {
$this->fatalError($node, 'Cannot assign value to variable $' . $name . ' of type ' . $this->getVarType($name));
}
}
}
protected function checkVarMustExist(NodeAbstract $node, string $name): void
{
if ($this->isVarExpr($node) and !$this->hasVar($name)) {
$this->errorUndefinedVariable($node);
}
}
protected function mustNoCall(NodeAbstract $node): void
{
$nodeFinder = new NodeFinder();
$r1 = $nodeFinder->findInstanceOf($node, Expr\StaticCall::class);
$r2 = $nodeFinder->findInstanceOf($node, Expr\MethodCall::class);
$r3 = $nodeFinder->findInstanceOf($node, Expr\FuncCall::class);
if (count($r1) + count($r2) + count($r3) > 0) {
$this->fatalError($node, 'Calling function or method is not allowed');
}
}
protected function checkAccessible(ClassDef $classDef, int $flags): bool
{
// 在当前类中,允许调用所有方法
if ($classDef->namespace === $this->namespace and $classDef->name == $this->class) {
return true;
}
// 类外部调用,只允许调用 public 方法
return $flags & Modifiers::PUBLIC;
}
protected function isOverrideMethod(string $fullMethodName): bool
{
$fullMethodNameLower = strtolower($fullMethodName);
return isset($this->classMethodOverride[$fullMethodNameLower]) and $this->classMethodOverride[$fullMethodNameLower];
}
protected function findNativeMethod(CallLike $expr, string $object, string $method): string|false
{
$nativeFunc = '';
$classDef = null;
if ($object === 'this_') {
$nativeFunc = $this->getNativeName($method, $this->namespace, $this->class);
$classDef = $this->classDef;
} elseif (isset($this->context->objects[$object])) {
$class = $this->context->objects[$object];
$nativeFunc = $this->getNativeMethod($expr, $class, $method);
// 存在 Native 类,但是没有找到方法,可能是动态调用
if (!$nativeFunc) {
if ($this->hasClass($class) and $this->getNativeMethod($expr, $class, '__call', false)) {
throw new DynamicCall();
}
}
}
if ($classDef) {
$fullMethodName = $classDef->getNamespacedName(false) . '::' . $method;
} else {
$fullMethodName = $object . '::' . $method;
}
// 存在子类同名方法,需要转为动态调用
if ($this->isOverrideMethod($fullMethodName)) {
return false;
}
if ($nativeFunc) {
$this->checkFunction($nativeFunc);
if ($this->hasFunction($nativeFunc)) {
return $nativeFunc;
}
}
return false;
}
protected function parseNativeMethodCall(string $object, string $nativeFunc, array $args): string
{
if ($this->getVarType($object) != self::TYPE_OBJECT) {
$tmpVar = $this->genTmpVarName();
$this->context->beforeStmtLines[] = self::TYPE_OBJECT . ' ' . $tmpVar . ' = ' . $object . ';';
$object = $tmpVar;
}
if (count($args) === 0) {
return self::PREFIX . $nativeFunc . '(' . $object . ')';
}
return self::PREFIX . $nativeFunc . '(' . $object . ', ' . $this->parseNativeCallArgs($args, $nativeFunc) . ')';
}
protected function parseAssignPropertyArrayDim(NodeAbstract $left, NodeAbstract $right): string
{
$obj = $this->parseIdentifier($left->var->var);
$propName = $this->identifierToStr($left->var->name);
$code = '';
$value = $this->trimBrackets($this->parseExpr($right));
if ($left->dim === null) {
return $code . "{$obj}.appendArrayProperty({$propName}, {$value})";
}
$dim = $this->trimBrackets($this->parseIdentifier($left->dim));
return $code . "{$obj}.updateArrayProperty({$propName}, {$dim}, {$value})";
}
protected function parseParentMethodCall(Expr\StaticCall $expr): string
{
$methodStr = $this->classDef->name . '::' . $this->parseIdentifier($expr->name);
if (!$this->classDef->extends) {
$this->fatalError($expr, 'Cannot call parent method `' . $methodStr . '()` because class `' . $this->classDef->name . '` does not extend any class');
}
if (!$this->isIdExpr($expr->name)) {
$this->fatalError($expr, 'Cannot call parent method `' . $methodStr . '()` because method name is not a literal');
}
$parentClass = $this->classDef->extends;
$method = $this->parseIdentifier($expr->name);
// TODO 是否转为 native 调用
if (empty($expr->args)) {
return 'this_.call(' . $this->getMethodPtr($parentClass, $method) . ')';
}
return 'this_.call(' . $this->getMethodPtr($parentClass, $method) . ', ' . $this->parseCallArgs($expr->args) . ')';
}
protected function genDebugInfo(?NodeAbstract $stmt = null): string
{
$code = '';
if ($this->debugInfo) {
if ($stmt) {
$code .= 'php::traceDebugInfo("' . $this->escapeString($this->file) . '", ' . $stmt->getLine() . ');' . PHP_EOL;
} else {
$code .= 'php::enableDebugInfo();' . PHP_EOL;
}
}
return $code;
}
protected function genScopeVarDecl(): string
{
$code = '';
foreach ($this->context->localVars as $name => $type) {
if (isset($this->context->arguments[$name])) {
continue;
}
$code .= $this->getIndent() . $type . ' ' . $name;
if ($type === self::TYPE_INT or $type === self::TYPE_FLOAT or $type === self::TYPE_BOOL) {
$code .= ' = 0';
}
$code .= ';' . PHP_EOL;
}
foreach ($this->context->globalVars as $name => $type) {
$code .= $this->getIndent() . self::TYPE_VAR . ' &' . $name . ' = ' . $this->escapeGlobalVar($name) . ';' . PHP_EOL;
}
return $code;
}
protected function genReturnCode(): string
{
if ($this->functionDef->returnType === self::TYPE_VOID) {
return '';
}
if ($this->functionDef->returnType === self::TYPE_INT
or $this->functionDef->returnType === self::TYPE_FLOAT
or $this->functionDef->returnType === self::TYPE_BOOL) {
return $this->getIndent() . 'return 0;';
} else {
return $this->getIndent() . 'return ' . self::VALUE_NULL . ';';
}
}
protected function genEmbeddedCode(NodeAbstract $stmt): string
{
return $this->printer->prettyPrint([$stmt]);
}
protected function parseArrowFunction(Expr\ArrowFunction $expr): string
{
$nodeFinder = new NodeFinder();
$vars = $nodeFinder->findInstanceOf($expr->expr, Variable::class);
$uses = [];
$params = [];
foreach ($expr->params as $i => $param) {
if ($param->byRef) {
$this->fatalError($expr, 'Closure cannot use reference parameter');
}
if ($param->var instanceof Variable) {
$params[$param->var->name] = $i;
}
}
foreach ($vars as $var) {
$varName = $this->escapeVarName($this->parseVariable($var));
if ($varName === 'this_'
or !$this->hasLocalVar($varName)
or isset($params[$var->name])
or isset($uses[$varName])) {
continue;
}
$uses[$varName] = new Node\ClosureUse($var);
}
$uses = array_values($uses);
$cb = function () use ($expr) {
$code = $this->parseExpr($expr->expr);
if ($this->context->beforeStmtLines) {
$beforeCode = implode(PHP_EOL, $this->context->beforeStmtLines);
} else {
$beforeCode = '';
}
if ($this->isCallExpr($expr->expr)) {
$nativeCall = $expr->expr->getAttribute('nativeCall');
if ($nativeCall and $this->functions[$nativeCall]->returnType === self::TYPE_VOID) {
return $beforeCode . PHP_EOL . $code . ';' . PHP_EOL . 'return ' . self::VALUE_NULL . ';';
}
}
return $beforeCode . PHP_EOL . 'return ' . $code . ';';
};
return $this->genClosure($expr, $expr->params, $cb, $uses);
}
protected function parseClosure(Expr\Closure $expr): string
{
$cb = function () use ($expr) {
$fnCode = $this->parseStmts($expr->stmts);
if (!$this->isReturnStmtInLastLine($expr->stmts)) {
$fnCode .= 'return ' . self::VALUE_NULL . ';' . PHP_EOL;
}
return $fnCode;
};
return $this->genClosure($expr, $expr->params, $cb, $expr->uses);
}
protected function parseAssignOpCoalesce(Expr\AssignOp\Coalesce $expr): string
{
$this->checkLeftValue($expr->var);
$isset = $this->parseChainedExpr($expr->var, self::OP_ISSET);
$inAssignExpr = $this->context->inAssignExpr;
$this->context->inAssignExpr = true;
$var = $this->parseIdentifier($expr->var);
$this->context->inAssignExpr = $inAssignExpr;
$right = $this->parseExpr($expr->expr);
if ($this->isVarExpr($expr->expr) and !$this->hasVar($right)) {
$this->errorUndefinedVariable($expr->expr);
}
if ($this->isVarExpr($expr->var) and !$this->hasVar($var)) {
$this->addLocalVar($var, $this->detectExprType($expr->expr));
}
return '(' . $isset . '?' . $var . ':(' . $var . ' = ' . $right . '))';
}
protected function isReturnStmtInLastLine(array $stmts): bool
{
if (count($stmts) === 0) {
return false;
}
return $stmts[array_key_last($stmts)] instanceof Node\Stmt\Return_;
}
protected function parseNullsafePropertyFetch(Expr\NullsafePropertyFetch $expr): string
{
return $this->parseNullsafeExpr($expr);
}
protected function parseNullsafeMethodCall(Expr\NullsafeMethodCall $expr): string
{
return $this->parseNullsafeExpr($expr);
}
protected function parseNullsafeExpr(Expr\NullsafePropertyFetch|Expr\NullsafeMethodCall $expr): string
{
$list = [];
$comment = '// Nullsafe Operator: ' . $this->printer->prettyPrint([$expr]);
while (1) {
if ($expr instanceof Expr\NullsafePropertyFetch) {
$list[] = ['property', $this->identifierToStr($expr->name, literal: true)];
$expr = $expr->var;
} elseif ($expr instanceof Expr\NullsafeMethodCall) {
$list[] = ['method', $this->identifierToStr($expr->name, literal: true), $expr->args];
$expr = $expr->var;
} else {
if ($this->isVarExpr($expr)) {
$object = $this->parseIdentifier($expr);
if (!$this->hasVar($object)) {
$this->errorUndefinedVariable($expr);
}
$type = $this->getVarType($object);
if ($type === self::TYPE_OBJECT) {
break;
}
}
$object = $this->addTmpVar(self::TYPE_OBJECT);
$this->context->beforeStmtLines[] = $this->getIndent() . $object . ' = ' . $this->parseIdentifier($expr) . ';';
break;
}
}
$list = array_reverse($list);
$last = array_key_last($list);
$tmpFn = $this->genTmpVarName();
$code = $comment . PHP_EOL . 'auto ' . $tmpFn . ' = [&]() -> ' . self::TYPE_VAR . '{' . PHP_EOL;
$update = $this->escapeBool($this->context->inAssignExpr);
foreach ($list as $key => $item) {
$tmpVar = $this->addTmpVar($key !== $last ? self::TYPE_OBJECT : self::TYPE_VAR);
$code .= "if ({$object}.isNull()) { return " . self::VALUE_NULL . '; }';
if ($item[0] == 'property') {
$code .= $this->getIndent() . "{$tmpVar} = {$object}.attr({$item[1]}, {$update});";
} else {
$args = $this->parseCallArgs($item[2]);
$code .= $this->getIndent() . "{$tmpVar} = {$object}.call({$item[1]}, {$args});";
}
$object = $tmpVar;
}
$code .= $this->getIndent() . "return {$object}; };";
$this->context->beforeStmtLines[] = $code;
return "{$tmpFn}()";
}
protected function parseFullyQualifiedName(Node\Name\FullyQualified $expr): string
{
return $expr->name;
}
/**
* 混杂数组赋值,需要拆分为多行插入
*/
private function parseArrayMixed(Expr\Array_ $node): string
{
$tmpVar = $this->genTmpVarName();
$this->addLocalVar($tmpVar, self::TYPE_ARRAY);
$items = $node->items;
foreach ($items as $item) {
$value = $this->parseIdentifier($item->value);
if ($item->unpack) {
$this->context->beforeStmtLines[] = $this->getIndent() . $tmpVar . '.merge(' . $value . ');';
} elseif ($item->key) {
$key = $this->parseIdentifier($item->key);
if (str_starts_with($key, self::LITERAL_STRINGS)) {
$key = "{$key}.toStdString()";
} elseif ($key === '0L') {
$key = 'php::zero';
}
$this->context->beforeStmtLines[] = $this->getIndent() . $tmpVar . '.set(' . $key . ', ' . $value . ');';
} else {
$this->context->beforeStmtLines[] = $this->getIndent() . $tmpVar . '.append(' . $value . ');';
}
}
// 释放临时变量,避免修改数组产生数组复制操作
$this->context->afterStmtLines[] = $this->getIndent() . $tmpVar . '.unset();';
return $tmpVar;
}
}