/**
* Compiles ClassName::foo[index] = {expr}
*
* @param $className
* @param $property
* @param CompiledExpression $resolvedExpr
* @param CompilationContext $compilationContext
* @param array $statement
*
* @throws CompilerException
* @internal param string $variable
*/
public function assignStatic($className, $property, CompiledExpression $resolvedExpr, CompilationContext $compilationContext, $statement)
{
$compiler = $compilationContext->compiler;
if (!in_array($className, array('self', 'static', 'parent'))) {
$className = $compilationContext->getFullName($className);
if ($compiler->isClass($className)) {
$classDefinition = $compiler->getClassDefinition($className);
} else {
if ($compiler->isBundledClass($className)) {
$classDefinition = $compiler->getInternalClassDefinition($className);
} else {
throw new CompilerException("Cannot locate class '" . $className . "'", $statement);
}
}
} else {
if (in_array($className, array('self', 'static'))) {
$classDefinition = $compilationContext->classDefinition;
} else {
if ($className == 'parent') {
$classDefinition = $compilationContext->classDefinition;
$extendsClass = $classDefinition->getExtendsClass();
if (!$extendsClass) {
throw new CompilerException('Cannot assign static property "' . $property . '" on parent because class ' . $classDefinition->getCompleteName() . ' does not extend any class', $statement);
} else {
$classDefinition = $classDefinition->getExtendsClassDefinition();
}
}
}
}
if (!$classDefinition->hasProperty($property)) {
throw new CompilerException("Class '" . $classDefinition->getCompleteName() . "' does not have a property called: '" . $property . "'", $statement);
}
/** @var $propertyDefinition ClassProperty */
$propertyDefinition = $classDefinition->getProperty($property);
if (!$propertyDefinition->isStatic()) {
throw new CompilerException("Cannot access non-static property '" . $classDefinition->getCompleteName() . '::' . $property . "'", $statement);
}
if ($propertyDefinition->isPrivate()) {
if ($classDefinition != $compilationContext->classDefinition) {
throw new CompilerException("Cannot access private static property '" . $classDefinition->getCompleteName() . '::' . $property . "' out of its declaring context", $statement);
}
}
$compilationContext->headersManager->add('kernel/object');
$classEntry = $classDefinition->getClassEntry($compilationContext);
$this->_assignStaticPropertyArrayMultipleIndex($classEntry, $property, $resolvedExpr, $compilationContext, $statement);
}
/**
* Compiles ClassName::foo = {expr}
*
* @param $className
* @param $property
* @param CompiledExpression $resolvedExpr
* @param CompilationContext $compilationContext
* @param array $statement
*
* @throws CompilerException
* @internal param string $variable
*/
public function assignStatic($className, $property, CompiledExpression $resolvedExpr, CompilationContext $compilationContext, $statement)
{
$compiler = $compilationContext->compiler;
if (!in_array($className, array('self', 'static', 'parent'))) {
$className = $compilationContext->getFullName($className);
if ($compiler->isClass($className)) {
$classDefinition = $compiler->getClassDefinition($className);
} else {
if ($compiler->isBundledClass($className)) {
$classDefinition = $compiler->getInternalClassDefinition($className);
} else {
throw new CompilerException("Cannot locate class '" . $className . "'", $statement);
}
}
} else {
if (in_array($className, array('self', 'static'))) {
$classDefinition = $compilationContext->classDefinition;
} else {
if ($className == 'parent') {
$classDefinition = $compilationContext->classDefinition;
$extendsClass = $classDefinition->getExtendsClass();
if (!$extendsClass) {
throw new CompilerException('Cannot assign static property "' . $property . '" on parent because class ' . $classDefinition->getCompleteName() . ' does not extend any class', $statement);
} else {
$classDefinition = $classDefinition->getExtendsClassDefinition();
}
}
}
}
if (!$classDefinition->hasProperty($property)) {
throw new CompilerException("Class '" . $classDefinition->getCompleteName() . "' does not have a property called: '" . $property . "'", $statement);
}
/** @var $propertyDefinition ClassProperty */
$propertyDefinition = $classDefinition->getProperty($property);
if (!$propertyDefinition->isStatic()) {
throw new CompilerException("Cannot access non-static property '" . $classDefinition->getCompleteName() . '::' . $property . "'", $statement);
}
if ($propertyDefinition->isPrivate()) {
if ($classDefinition != $compilationContext->classDefinition) {
throw new CompilerException("Cannot access private static property '" . $classDefinition->getCompleteName() . '::' . $property . "' out of its declaring context", $statement);
}
}
$codePrinter = $compilationContext->codePrinter;
$compilationContext->headersManager->add('kernel/object');
$classEntry = $classDefinition->getClassEntry($compilationContext);
switch ($resolvedExpr->getType()) {
case 'null':
$compilationContext->backend->updateStaticProperty($classEntry, $property, 'null', $compilationContext);
break;
case 'int':
case 'uint':
case 'long':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$compilationContext->backend->assignLong($tempVariable, $resolvedExpr->getBooleanCode(), $compilationContext);
$compilationContext->backend->updateStaticProperty($classEntry, $property, $tempVariable, $compilationContext);
if ($tempVariable->isTemporal()) {
$tempVariable->setIdle(true);
}
break;
case 'char':
case 'uchar':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$compilationContext->backend->assignLong($tempVariable, '\'' . $resolvedExpr->getCode() . '\'', $compilationContext);
$compilationContext->backend->updateStaticProperty($classEntry, $property, $tempVariable, $compilationContext);
if ($tempVariable->isTemporal()) {
$tempVariable->setIdle(true);
}
break;
case 'double':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$compilationContext->backend->assignDouble($tempVariable, $resolvedExpr->getCode(), $compilationContext);
$compilationContext->backend->updateStaticProperty($classEntry, $property, $tempVariable, $compilationContext);
if ($tempVariable->isTemporal()) {
$tempVariable->setIdle(true);
}
break;
case 'string':
switch ($statement['operator']) {
case 'assign':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$tempVariable->initVariant($compilationContext);
if ($resolvedExpr->getCode()) {
$compilationContext->backend->assignString($tempVariable, $resolvedExpr->getCode(), $compilationContext);
} else {
$codePrinter->output('ZVAL_EMPTY_STRING(' . $tempVariable->getName() . ');');
}
if ($tempVariable->isTemporal()) {
$tempVariable->setIdle(true);
}
break;
default:
throw new CompilerException("Operator '" . $statement['operator'] . "' is not supported for variable type: string", $statement);
}
$codePrinter->output('zephir_update_static_property_ce(' . $classEntry . ', SL("' . $property . '"), &' . $tempVariable->getName() . ' TSRMLS_CC);');
break;
case 'bool':
if ($resolvedExpr->getBooleanCode() == '1') {
$compilationContext->backend->updateStaticProperty($classEntry, $property, 'true', $compilationContext);
} else {
if ($resolvedExpr->getBooleanCode() == '0') {
$compilationContext->backend->updateStaticProperty($classEntry, $property, 'false', $compilationContext);
} else {
$codePrinter->output('if (' . $resolvedExpr->getBooleanCode() . ') {');
$codePrinter->increaseLevel();
$compilationContext->backend->updateStaticProperty($classEntry, $property, 'true', $compilationContext);
$codePrinter->decreaseLevel();
$codePrinter->output('} else {');
$codePrinter->increaseLevel();
$compilationContext->backend->updateStaticProperty($classEntry, $property, 'false', $compilationContext);
$codePrinter->decreaseLevel();
$codePrinter->output('}');
}
}
break;
case 'empty-array':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$compilationContext->backend->initArray($tempVariable, $compilationContext);
$compilationContext->backend->updateStaticProperty($classEntry, $property, $tempVariable, $compilationContext);
if ($tempVariable->isTemporal()) {
$tempVariable->setIdle(true);
}
break;
case 'array':
$compilationContext->backend->updateStaticProperty($classEntry, $property, $resolvedExpr, $compilationContext);
break;
case 'variable':
$variableVariable = $compilationContext->symbolTable->getVariableForRead($resolvedExpr->getCode(), $compilationContext, $statement);
switch ($variableVariable->getType()) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
case 'char':
case 'uchar':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$compilationContext->backend->assignLong($tempVariable, $variableVariable, $compilationContext);
if ($compilationContext->insideCycle) {
$propertyCache = $compilationContext->symbolTable->getTempVariableForWrite('zend_property_info', $compilationContext);
$propertyCache->setMustInitNull(true);
$propertyCache->setReusable(false);
$codePrinter->output('zephir_update_static_property_ce_cache(' . $classEntry . ', SL("' . $property . '"), &' . $tempVariable->getName() . ', &' . $propertyCache->getName() . ' TSRMLS_CC);');
} else {
$compilationContext->backend->updateStaticProperty($classEntry, $property, $tempVariable, $compilationContext);
}
if ($tempVariable->isTemporal()) {
$tempVariable->setIdle(true);
}
break;
case 'double':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$compilationContext->backend->assignDouble($tempVariable, $variableVariable, $compilationContext);
if ($compilationContext->insideCycle) {
$propertyCache = $compilationContext->symbolTable->getTempVariableForWrite('zend_property_info', $compilationContext);
$propertyCache->setMustInitNull(true);
$propertyCache->setReusable(false);
$codePrinter->output('zephir_update_static_property_ce_cache(' . $classEntry . ', SL("' . $property . '"), &' . $tempVariable->getName() . ', &' . $propertyCache->getName() . ' TSRMLS_CC);');
} else {
$compilationContext->backend->updateStaticProperty($classEntry, $property, $tempVariable, $compilationContext);
}
if ($tempVariable->isTemporal()) {
$tempVariable->setIdle(true);
}
break;
case 'bool':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$compilationContext->backend->assignBool($tempVariable, $variableVariable, $compilationContext);
$compilationContext->backend->updateStaticProperty($classEntry, $property, $tempVariable, $compilationContext);
if ($tempVariable->isTemporal()) {
$tempVariable->setIdle(true);
}
break;
case 'string':
switch ($statement['operator']) {
case 'concat-assign':
$tempVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext, true);
$expression = new Expression(array('type' => 'static-property-access', 'left' => array('value' => $statement['variable']), 'right' => array('value' => $statement['property'])));
$expression->setExpectReturn(true, $tempVariable);
$expression->compile($compilationContext);
$variableVariableCode = $compilationContext->backend->getVariableCode($variableVariable);
$tempVariableCode = $compilationContext->backend->getVariableCode($tempVariable);
$compilationContext->codePrinter->output('zephir_concat_function(' . $variableVariableCode . ', ' . $tempVariableCode . ', ' . $variableVariableCode . ');');
//continue
//continue
case 'assign':
$compilationContext->backend->updateStaticProperty($classEntry, $property, $variableVariable, $compilationContext);
if ($variableVariable->isTemporal()) {
$variableVariable->setIdle(true);
}
break;
default:
throw new CompilerException("Operator '" . $statement['operator'] . "' is not supported for variable type: string", $statement);
}
break;
case 'variable':
case 'array':
$compilationContext->backend->updateStaticProperty($classEntry, $property, $variableVariable, $compilationContext);
if ($variableVariable->isTemporal()) {
$variableVariable->setIdle(true);
}
break;
default:
throw new CompilerException("Unknown type " . $variableVariable->getType(), $statement);
}
break;
default:
throw new CompilerException("Unknown type " . $resolvedExpr->getType(), $statement);
}
}
/**
* Access a static property
*
* @param array $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
*/
public function compile($expression, CompilationContext $compilationContext)
{
$className = $expression['left']['value'];
$compiler = $compilationContext->compiler;
$property = $expression['right']['value'];
/**
* Fetch the class definition according to the class where the constant
* is supposed to be declared
*/
if (!in_array($className, array('self', 'static', 'parent'))) {
$className = $compilationContext->getFullName($className);
if ($compiler->isClass($className)) {
$classDefinition = $compiler->getClassDefinition($className);
} else {
if ($compiler->isBundledClass($className)) {
$classDefinition = $compiler->getInternalClassDefinition($className);
} else {
throw new CompilerException("Cannot locate class '" . $className . "'", $expression['left']);
}
}
} else {
if (in_array($className, array('self', 'static'))) {
$classDefinition = $compilationContext->classDefinition;
} else {
if ($className == 'parent') {
$classDefinition = $compilationContext->classDefinition;
$extendsClass = $classDefinition->getExtendsClass();
if (!$extendsClass) {
throw new CompilerException('Cannot access static property "' . $property . '" on parent because class ' . $classDefinition->getCompleteName() . ' does not extend any class', $expression);
} else {
$classDefinition = $classDefinition->getExtendsClassDefinition();
}
}
}
}
if (!$classDefinition->hasProperty($property)) {
throw new CompilerException("Class '" . $classDefinition->getCompleteName() . "' does not have a property called: '" . $property . "'", $expression);
}
/** @var $propertyDefinition ClassProperty */
$propertyDefinition = $classDefinition->getProperty($property);
if (!$propertyDefinition->isStatic()) {
throw new CompilerException("Cannot access non-static property '" . $classDefinition->getCompleteName() . '::' . $property . "'", $expression);
}
if ($propertyDefinition->isPrivate()) {
if ($classDefinition != $compilationContext->classDefinition) {
throw new CompilerException("Cannot access private static property '" . $classDefinition->getCompleteName() . '::' . $property . "' out of its declaring context", $expression);
}
}
if ($propertyDefinition->isProtected()) {
if ($classDefinition != $compilationContext->classDefinition && $classDefinition != $compilationContext->classDefinition->getExtendsClassDefinition()) {
throw new CompilerException("Cannot access protected static property '" . $classDefinition->getCompleteName() . '::' . $property . "' out of its declaring context", $expression);
}
}
/**
* Resolves the symbol that expects the value
*/
if ($this->_expecting) {
if ($this->_expectingVariable) {
$symbolVariable = $this->_expectingVariable;
if ($symbolVariable->getName() == 'return_value') {
$symbolVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext);
}
} else {
$symbolVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext);
}
} else {
$symbolVariable = $compilationContext->symbolTable->getTempNonTrackedVariable('variable', $compilationContext);
}
/**
* Variable that receives property accesses must be polymorphic
*/
if (!$symbolVariable->isVariable()) {
throw new CompilerException("Cannot use variable: " . $symbolVariable->getType() . " to assign class constants", $expression);
}
$symbolVariable->setDynamicTypes('undefined');
$compilationContext->headersManager->add('kernel/object');
$readOnly = $this->_readOnly;
if (!$readOnly) {
if ($symbolVariable->getName() != 'return_value') {
$symbolVariable->observeVariant($compilationContext);
}
}
$compilationContext->backend->fetchStaticProperty($symbolVariable, $classDefinition, $property, $this->_readOnly, $compilationContext);
return new CompiledExpression('variable', $symbolVariable->getRealName(), $expression);
}
/**
* Access a static constant class
*
* @param array $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
*/
public function compile($expression, CompilationContext $compilationContext)
{
$compiler =& $compilationContext->compiler;
$className = $expression['left']['value'];
$constant = $expression['right']['value'];
/**
* Fetch the class definition according to the class where the constant
* is supposed to be declared
*/
if (!in_array($className, array('this', 'self', 'static', 'parent'))) {
$className = $compilationContext->getFullName($className);
if ($compiler->isClass($className) || $compiler->isInterface($className)) {
$classDefinition = $compiler->getClassDefinition($className);
} else {
if ($compiler->isBundledClass($className) || $compiler->isBundledInterface($className)) {
$classDefinition = $compiler->getInternalClassDefinition($className);
} else {
throw new CompilerException("Cannot locate class '" . $className . "'", $expression['left']);
}
}
} else {
if (in_array($className, array('self', 'static', 'this'))) {
$classDefinition = $compilationContext->classDefinition;
} else {
if ($className == 'parent') {
$classDefinition = $compilationContext->classDefinition;
$extendsClass = $classDefinition->getExtendsClass();
if (!$extendsClass) {
throw new CompilerException('Cannot find constant called "' . $constant . '" on parent because class ' . $classDefinition->getCompleteName() . ' does not extend any class', $expression);
} else {
$classDefinition = $classDefinition->getExtendsClassDefinition();
}
}
}
}
/**
* Constants are resolved to their values at compile time
* so we need to check that they effectively do exist
*/
if (!$classDefinition->hasConstant($constant)) {
throw new CompilerException("Class '" . $classDefinition->getCompleteName() . "' does not have a constant called: '" . $constant . "'", $expression);
}
/**
* We can optimize the reading of constants by avoiding query their value every time
*/
if (!$compilationContext->config->get('static-constant-class-folding', 'optimizations')) {
/**
* Resolves the symbol that expects the value
*/
if ($this->_expecting) {
if ($this->_expectingVariable) {
$symbolVariable = $this->_expectingVariable;
$symbolVariable->initVariant($compilationContext);
} else {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForWrite('variable', $compilationContext, $expression);
}
} else {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForWrite('variable', $compilationContext, $expression);
}
/**
* Variable that receives property accesses must be polymorphic
*/
if (!$symbolVariable->isVariable()) {
throw new CompilerException("Cannot use variable: " . $symbolVariable->getType() . " to assign class constants", $expression);
}
$symbolVariable->setDynamicTypes('undefined');
$compilationContext->headersManager->add('kernel/object');
$compilationContext->codePrinter->output('zephir_get_class_constant(' . $symbolVariable->getName() . ', ' . $classDefinition->getClassEntry($compilationContext) . ', SS("' . $constant . '") TSRMLS_CC);');
return new CompiledExpression('variable', $symbolVariable->getRealName(), $expression);
}
$constantDefinition = $classDefinition->getConstant($constant);
if ($constantDefinition instanceof ClassConstant) {
$value = $constantDefinition->getValueValue();
$type = $constantDefinition->getValueType();
} else {
$value = $constantDefinition;
$type = gettype($value);
if ($type == 'integer') {
$type = 'int';
}
}
switch ($type) {
case 'string':
case 'int':
case 'double':
case 'float':
case 'bool':
case 'null':
break;
default:
$compilationContext->logger->warning($constantDefinition->getName(), 'nonexistent-constant', $expression);
return new CompiledExpression('null', null, $expression);
}
/**
* Return the value as a literal expression
*/
return new CompiledExpression($type, $value, $expression);
}