/**
* Compiles foo[y][x][] = {expr} (multiple offset)
*
* @param string $variable
* @param ZephirVariable $symbolVariable
* @param CompiledExpression $resolvedExpr
* @param CompilationContext $compilationContext
* @param array $statement
*/
protected function _assignArrayIndexMultiple($variable, ZephirVariable $symbolVariable, CompiledExpression $resolvedExpr, CompilationContext $compilationContext, $statement)
{
$codePrinter = $compilationContext->codePrinter;
$offsetExprs = array();
foreach ($statement['index-expr'] as $indexExpr) {
$expression = new Expression($indexExpr);
$expression->setReadOnly(true);
$exprIndex = $expression->compile($compilationContext);
switch ($exprIndex->getType()) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
case 'string':
case 'variable':
break;
default:
throw new CompilerException("Index: " . $exprIndex->getType() . " cannot be used as array index in assignment without cast", $indexExpr);
}
$offsetExprs[] = $exprIndex;
}
$compilationContext->headersManager->add('kernel/array');
/**
* Create a temporal zval (if needed)
*/
$symbolVariable = $this->_getResolvedArrayItem($resolvedExpr, $compilationContext);
$targetVariable = $compilationContext->symbolTable->getVariableForWrite($variable, $compilationContext, $statement);
$offsetExprs[] = 'a';
$compilationContext->backend->assignArrayMulti($targetVariable, $symbolVariable, $offsetExprs, $compilationContext);
}
/**
* @param array $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
* @throws CompilerException
*/
public function compile(array $expression, CompilationContext $compilationContext)
{
$expr = new Expression($expression['left']);
$expr->setReadOnly(true);
$expr->setExpectReturn(true);
$exprPath = $expr->compile($compilationContext);
if ($exprPath->getType() == 'variable') {
$exprVariable = $compilationContext->symbolTable->getVariableForRead($exprPath->getCode(), $compilationContext, $expression);
if ($exprVariable->getType() == 'variable') {
if ($exprVariable->hasDifferentDynamicType(array('undefined', 'string'))) {
$compilationContext->logger->warning('Possible attempt to use invalid type as path in "require" operator', 'non-valid-require', $expression);
}
}
}
$symbolVariable = false;
if ($this->isExpecting()) {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForObserveOrNullify('variable', $compilationContext, $expression);
}
$compilationContext->headersManager->add('kernel/memory');
$compilationContext->headersManager->add('kernel/require');
$codePrinter = $compilationContext->codePrinter;
if ($symbolVariable) {
$codePrinter->output('ZEPHIR_OBSERVE_OR_NULLIFY_PPZV(&' . $symbolVariable->getName() . ');');
$codePrinter->output('if (zephir_require_zval_ret(&' . $symbolVariable->getName() . ', ' . $exprPath->getCode() . ' TSRMLS_CC) == FAILURE) {');
} else {
$codePrinter->output('if (zephir_require_zval(' . $exprPath->getCode() . ' TSRMLS_CC) == FAILURE) {');
}
$codePrinter->output("\t" . 'RETURN_MM_NULL();');
$codePrinter->output('}');
if ($symbolVariable) {
return new CompiledExpression('variable', $symbolVariable->getName(), $expression);
}
return new CompiledExpression('null', null, $expression);
}
/**
* @param CompilationContext $compilationContext
* @throws CompilerException
*/
public function compile(CompilationContext $compilationContext)
{
$expression = array('type' => 'require', 'left' => $this->_statement['expr'], 'file' => $this->_statement['file'], 'line' => $this->_statement['line'], 'char' => $this->_statement['char']);
$expr = new Expression($expression);
$expr->setExpectReturn(false, null);
$expr->compile($compilationContext);
}
/**
* @param $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
* @throws CompilerException
* @throws Exception
*/
public function compile($expression, CompilationContext $compilationContext)
{
if (!isset($expression['left'])) {
throw new CompilerException("Missing left part of the expression", $expression);
}
$leftExpr = new Expression($expression['left']);
$leftExpr->setReadOnly($this->_readOnly);
$left = $leftExpr->compile($compilationContext);
switch ($left->getType()) {
case 'bool':
case 'int':
case 'uint':
case 'long':
case 'ulong':
return new CompiledExpression('int', '~(' . $left->getCode() . ')', $expression);
case 'variable':
$variable = $compilationContext->symbolTable->getVariableForRead($left->getCode(), $compilationContext, $expression['left']);
switch ($variable->getType()) {
case 'bool':
case 'int':
case 'uint':
case 'long':
return new CompiledExpression('int', '~' . $variable->getName(), $expression);
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
return new CompiledExpression('int', '~zephir_get_intval(' . $variable->getName() . ')', $expression);
default:
throw new CompilerException("Unknown type: " . $variable->getType(), $expression);
}
break;
default:
throw new CompilerException("Unknown type: " . $left->getType(), $expression);
}
}
/**
* Compiles x::y[a][b] = {expr} (multiple offset assignment)
*
* @param string $variable
* @param CompiledExpression $resolvedExpr
* @param CompilationContext $compilationContext,
* @param array $statement
*/
protected function _assignStaticPropertyArrayMultipleIndex($classEntry, $property, CompiledExpression $resolvedExpr, CompilationContext $compilationContext, $statement)
{
$codePrinter = $compilationContext->codePrinter;
$property = $statement['property'];
$compilationContext->headersManager->add('kernel/object');
/**
* Create a temporal zval (if needed)
*/
$variableExpr = $this->_getResolvedArrayItem($resolvedExpr, $compilationContext);
/**
* Only string/variable/int
*/
$offsetExprs = array();
foreach ($statement['index-expr'] as $indexExpr) {
$indexExpression = new Expression($indexExpr);
$resolvedIndex = $indexExpression->compile($compilationContext);
switch ($resolvedIndex->getType()) {
case 'string':
case 'int':
case 'uint':
case 'ulong':
case 'long':
case 'variable':
break;
default:
throw new CompilerException("Expression: " . $resolvedIndex->getType() . " cannot be used as index without cast", $statement['index-expr']);
}
$offsetExprs[] = $resolvedIndex;
}
$compilationContext->backend->assignStaticPropertyArrayMulti($classEntry, $variableExpr, $property, $offsetExprs, $compilationContext);
if ($variableExpr->isTemporal()) {
$variableExpr->setIdle(true);
}
}
/**
* Executes the operator
*
* @param array $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
* @throws CompilerException
*/
public function compile(array $expression, CompilationContext $compilationContext)
{
if (!isset($expression['parameters'])) {
throw new CompilerException("Invalid 'parameters' for new-type", $expression);
}
switch ($expression['internal-type']) {
case 'array':
$compilationContext->headersManager->add('kernel/array');
$functionName = 'create_array';
break;
case 'string':
$compilationContext->headersManager->add('kernel/string');
$functionName = 'create_string';
break;
default:
throw new CompilerException("Cannot build instance of type", $expression);
}
$builder = new FunctionCallBuilder($functionName, $expression['parameters'], 1, $expression['file'], $expression['line'], $expression['char']);
/**
* Implicit type coercing
*/
$castBuilder = new CastOperatorBuilder($expression['internal-type'], $builder);
$expression = new Expression($castBuilder->get());
$expression->setReadOnly($this->_readOnly);
return $expression->compile($compilationContext);
}
/**
* Compile expression
*
* @param $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
* @throws CompilerException
* @throws Exception
*/
public function compile($expression, CompilationContext $compilationContext)
{
if (!isset($expression['left'])) {
throw new \Exception("Missing left part of the expression");
}
$leftExpr = new Expression($expression['left']);
$leftExpr->setReadOnly($this->_readOnly);
$left = $leftExpr->compile($compilationContext);
switch ($left->getType()) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
case 'double':
return new CompiledExpression($left->getType(), '+' . $left->getCode(), $expression);
case 'variable':
$variable = $compilationContext->symbolTable->getVariable($left->getCode());
switch ($variable->getType()) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
case 'double':
return new CompiledExpression($variable->getType(), '+' . $variable->getName(), $expression);
case 'variable':
return new CompiledExpression('variable', $variable->getName(), $expression);
default:
throw new CompilerException("Cannot operate plus with variable of '" . $left->getType() . "' type");
}
break;
default:
throw new CompilerException("Cannot operate plus with '" . $left->getType() . "' type");
}
}
/**
* @param array $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
* @throws CompilerException
*/
public function compile(array $expression, CompilationContext $compilationContext)
{
$compilationContext->headersManager->add('kernel/object');
$exprVariable = new Expression($expression['left']);
$exprVariable->setReadOnly(true);
$exprVariable->setExpectReturn(true);
$exprCompiledVariable = $exprVariable->compile($compilationContext);
if ($exprCompiledVariable->getType() != 'variable') {
throw new CompilerException("Expression type: " . $exprCompiledVariable->getType() . " cannot be used as array", $expression);
}
$clonedVariable = $compilationContext->symbolTable->getVariableForRead($exprCompiledVariable->getCode(), $compilationContext, $expression);
if ($clonedVariable->getType() != 'variable') {
throw new CompilerException("Variable type: " . $exprVariable->getType() . " cannot be cloned");
}
if ($clonedVariable->hasDifferentDynamicType(array('undefined', 'object', 'null'))) {
$compilationContext->logger->warning('Possible attempt to use non array in "clone" operator', 'non-valid-clone', $expression);
}
$symbolVariable = $this->getExpected($compilationContext, $expression);
if (!$symbolVariable->isVariable()) {
throw new CompilerException("Objects can only be cloned into dynamic variables", $expression);
}
$symbolVariable->setDynamicTypes('object');
$symbolVariable->setIsInitialized(true, $compilationContext, $expression);
/* Inherit the dynamic type data from the cloned object */
$symbolVariable->setDynamicTypes($clonedVariable->getDynamicTypes());
$symbolVariable->setClassTypes($clonedVariable->getClassTypes());
$compilationContext->codePrinter->output('if (zephir_clone(' . $symbolVariable->getName() . ', ' . $clonedVariable->getName() . ' TSRMLS_CC) == FAILURE) {');
$compilationContext->codePrinter->output("\t" . 'RETURN_MM();');
$compilationContext->codePrinter->output('}');
return new CompiledExpression('variable', $symbolVariable->getName(), $expression);
}
/**
* Transforms calls to method "toHex" to sprintf('%X') call
*
* @param object $caller
* @param CompilationContext $compilationContext
* @param Call $call
* @param array $expression
* @return bool|mixed|\Zephir\CompiledExpression
*/
public function toHex($caller, CompilationContext $compilationContext, Call $call, array $expression)
{
$exprBuilder = BuilderFactory::getInstance();
$functionCall = $exprBuilder->statements()->functionCall('sprintf', array($exprBuilder->literal(Types::STRING, '%X'), $caller))->setFile($expression['file'])->setLine($expression['line'])->setChar($expression['char']);
$expression = new Expression($functionCall->build());
return $expression->compile($compilationContext);
}
/**
* Resolves the access to a property in an object
*
* @param array $expression
* @param CompilationContext $compilationContext
* @return \CompiledExpression
*/
public function compile($expression, CompilationContext $compilationContext)
{
$codePrinter = $compilationContext->codePrinter;
$propertyAccess = $expression;
$expr = new Expression($propertyAccess['left']);
$exprVariable = $expr->compile($compilationContext);
switch ($exprVariable->getType()) {
case 'variable':
$variableVariable = $compilationContext->symbolTable->getVariableForRead($exprVariable->getCode(), $compilationContext, $expression);
switch ($variableVariable->getType()) {
case 'variable':
break;
default:
throw new CompilerException("Variable type: " . $variableVariable->getType() . " cannot be used as object", $propertyAccess['left']);
}
break;
default:
throw new CompilerException("Cannot use expression: " . $exprVariable->getType() . " as an object", $propertyAccess['left']);
}
switch ($propertyAccess['right']['type']) {
case 'variable':
$propertyVariable = $compilationContext->symbolTable->getVariableForRead($propertyAccess['right']['value'], $compilationContext, $expression);
break;
case 'string':
$propertyVariable = $compilationContext->symbolTable->getTempVariableForWrite('string', $compilationContext);
$statement = new LetStatement(array('type' => 'let', 'assignments' => array(array('assign-type' => 'variable', 'variable' => $propertyVariable->getName(), 'operator' => 'assign', 'expr' => $expression['right']))));
$statement->compile($compilationContext);
break;
default:
throw new CompilerException("Variable type: " . $propertyAccess['right']['type'] . " cannot be used as object", $propertyAccess['left']);
}
/**
* Resolves the symbol that expects the value
*/
if ($this->_expecting) {
if ($this->_expectingVariable) {
$symbolVariable = $this->_expectingVariable;
if ($symbolVariable->getName() != 'return_value') {
$symbolVariable->observeVariant($compilationContext);
} else {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForObserve('variable', $compilationContext, $expression);
}
} else {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForObserve('variable', $compilationContext, $expression);
}
}
/**
* Variable that receives a property value must be polymorphic
*/
if ($symbolVariable->getType() != 'variable') {
throw new CompilerException("Cannot use variable: " . $symbolVariable->getType() . " to assign property value", $expression);
}
/**
* At this point, we don't know the exact dynamic type fetched from the property
*/
$symbolVariable->setDynamicTypes('undefined');
$compilationContext->headersManager->add('kernel/object');
$codePrinter->output('zephir_read_property_zval(&' . $symbolVariable->getName() . ', ' . $variableVariable->getName() . ', ' . $propertyVariable->getName() . ', PH_NOISY_CC);');
return new CompiledExpression('variable', $symbolVariable->getRealName(), $expression);
}
/**
* Resolves the access to a property in an object
*
* @param array $expression
* @param CompilationContext $compilationContext
* @return \CompiledExpression
*/
public function compile($expression, CompilationContext $compilationContext)
{
$codePrinter = $compilationContext->codePrinter;
$propertyAccess = $expression;
$expr = new Expression($propertyAccess['left']);
$exprVariable = $expr->compile($compilationContext);
switch ($exprVariable->getType()) {
case 'variable':
$variableVariable = $compilationContext->symbolTable->getVariableForRead($exprVariable->getCode(), $compilationContext, $expression);
switch ($variableVariable->getType()) {
case 'variable':
break;
default:
throw new CompilerException("Variable type: " . $variableVariable->getType() . " cannot be used as object", $propertyAccess['left']);
}
break;
default:
throw new CompilerException("Cannot use expression: " . $exprVariable->getType() . " as an object", $propertyAccess['left']);
}
switch ($propertyAccess['right']['type']) {
case 'variable':
$propertyVariable = $compilationContext->symbolTable->getVariableForRead($propertyAccess['right']['value'], $compilationContext, $expression);
break;
case 'string':
$propertyVariable = null;
break;
default:
throw new CompilerException("Variable type: " . $propertyAccess['right']['type'] . " cannot be used as object", $propertyAccess['left']);
}
/**
* Resolves the symbol that expects the value
*/
if ($this->_expecting) {
if ($this->_expectingVariable) {
$symbolVariable = $this->_expectingVariable;
if ($symbolVariable->getName() != 'return_value') {
$symbolVariable->observeVariant($compilationContext);
} else {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForObserve('variable', $compilationContext, $expression);
}
} else {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForObserve('variable', $compilationContext, $expression);
}
}
/**
* Variable that receives a property value must be polymorphic
*/
if ($symbolVariable && !$symbolVariable->isVariable()) {
throw new CompilerException("Cannot use variable: " . $symbolVariable->getType() . " to assign property value", $expression);
}
/**
* At this point, we don't know the exact dynamic type fetched from the property
*/
$symbolVariable->setDynamicTypes('undefined');
$compilationContext->headersManager->add('kernel/object');
$property = $propertyVariable ? $propertyVariable : Utils::addSlashes($expression['right']['value']);
$compilationContext->backend->fetchProperty($symbolVariable, $variableVariable, $property, false, $compilationContext, false);
return new CompiledExpression('variable', $symbolVariable->getRealName(), $expression);
}
/**
* @param CompilationContext $compilationContext
* @throws CompilerException
*/
public function compile(CompilationContext $compilationContext)
{
$compilationContext->headersManager->add('kernel/exception');
$codePrinter = $compilationContext->codePrinter;
$statement = $this->_statement;
$expr = $statement['expr'];
/**
* This optimizes throw new Exception("hello")
*/
if (!$compilationContext->insideTryCatch) {
if (isset($expr['class']) && isset($expr['parameters']) && count($expr['parameters']) == 1 && $expr['parameters'][0]['parameter']['type'] == 'string') {
$className = Utils::getFullName($expr['class'], $compilationContext->classDefinition->getNamespace(), $compilationContext->aliasManager);
if ($compilationContext->compiler->isClass($className)) {
$classDefinition = $compilationContext->compiler->getClassDefinition($className);
$message = $expr['parameters'][0]['parameter']['value'];
$class = $classDefinition->getClassEntry();
$this->throwStringException($codePrinter, $class, $message, $statement['expr']);
return;
} else {
if ($compilationContext->compiler->isBundledClass($className)) {
$classEntry = $compilationContext->classDefinition->getClassEntryByClassName($className, $compilationContext, true);
if ($classEntry) {
$message = $expr['parameters'][0]['parameter']['value'];
$this->throwStringException($codePrinter, $classEntry, $message, $statement['expr']);
return;
}
}
}
} else {
if (in_array($expr['type'], array('string', 'char', 'int', 'double'))) {
$class = $compilationContext->classDefinition->getClassEntryByClassName('Exception', $compilationContext);
$this->throwStringException($codePrinter, $class, $expr['value'], $expr);
return;
}
}
}
$throwExpr = new Expression($expr);
$resolvedExpr = $throwExpr->compile($compilationContext);
if (!in_array($resolvedExpr->getType(), array('variable', 'string'))) {
throw new CompilerException("Expression '" . $resolvedExpr->getType() . '" cannot be used as exception', $expr);
}
$variableVariable = $compilationContext->symbolTable->getVariableForRead($resolvedExpr->getCode(), $compilationContext, $expr);
if (!in_array($variableVariable->getType(), array('variable', 'string'))) {
throw new CompilerException("Variable '" . $variableVariable->getType() . "' cannot be used as exception", $expr);
}
$variableCode = $compilationContext->backend->getVariableCode($variableVariable);
$codePrinter->output('zephir_throw_exception_debug(' . $variableCode . ', "' . Compiler::getShortUserPath($statement['expr']['file']) . '", ' . $statement['expr']['line'] . ' TSRMLS_CC);');
if (!$compilationContext->insideTryCatch) {
$codePrinter->output('ZEPHIR_MM_RESTORE();');
$codePrinter->output('return;');
} else {
$codePrinter->output('goto try_end_' . $compilationContext->currentTryCatch . ';');
$codePrinter->outputBlankLine();
}
if ($variableVariable->isTemporal()) {
$variableVariable->setIdle(true);
}
}
/**
* @param $expression
* @param CompilationContext $compilationContext
* @return bool|CompiledExpression
* @throws CompilerException
*/
public function compile($expression, CompilationContext $compilationContext)
{
if (!isset($expression['left'])) {
throw new CompilerException("Invalid 'left' operand for 'typeof' expression", $expression['left']);
}
$builder = new FunctionCallBuilder('gettype', array(array('parameter' => $expression['left'])));
$expression = new Expression($builder->get());
return $expression->compile($compilationContext);
}
/**
* @param $expression
* @param CompilationContext $compilationContext
* @return bool|CompiledExpression
* @throws CompilerException
*/
public function compile($expression, CompilationContext $compilationContext)
{
if (!isset($expression['left'])) {
throw new CompilerException("Invalid 'left' operand for 'typeof' expression", $expression['left']);
}
$functionCall = BuilderFactory::getInstance()->statements()->functionCall('gettype', array($expression['left']));
$expression = new Expression($functionCall->build());
return $expression->compile($compilationContext);
}
/**
* @param CompilationContext $compilationContext
* @throws CompilerException
*/
public function compile(CompilationContext $compilationContext)
{
$compilationContext->headersManager->add('kernel/exception');
$codePrinter = $compilationContext->codePrinter;
$statement = $this->_statement;
$expr = $statement['expr'];
/**
* This optimizes throw new Exception("hello")
*/
if (!$compilationContext->insideTryCatch) {
if (isset($expr['class'])) {
if (isset($expr['parameters']) && count($expr['parameters']) == 1) {
if ($expr['parameters'][0]['parameter']['type'] == 'string') {
$className = Utils::getFullName($expr['class'], $compilationContext->classDefinition->getNamespace(), $compilationContext->aliasManager);
if ($compilationContext->compiler->isClass($className)) {
$classDefinition = $compilationContext->compiler->getClassDefinition($className);
$message = $expr['parameters'][0]['parameter']['value'];
$codePrinter->output('ZEPHIR_THROW_EXCEPTION_DEBUG_STR(' . $classDefinition->getClassEntry() . ', "' . Utils::addSlashes($message, true, Types::STRING) . '", "' . Compiler::getShortUserPath($statement['expr']['file']) . '", ' . $statement['expr']['line'] . ');');
$codePrinter->output('return;');
return;
} else {
if ($compilationContext->compiler->isInternalClass($className)) {
$classEntry = $compilationContext->classDefinition->getClassEntryByClassName($className, true);
if ($classEntry) {
$message = $expr['parameters'][0]['parameter']['value'];
$codePrinter->output('ZEPHIR_THROW_EXCEPTION_DEBUG_STR(' . $classEntry . ', "' . Utils::addSlashes($message, true, Types::STRING) . '", "' . Compiler::getShortUserPath($statement['expr']['file']) . '", ' . $statement['expr']['line'] . ');');
$codePrinter->output('return;');
return;
}
}
}
}
}
}
}
$throwExpr = new Expression($expr);
$resolvedExpr = $throwExpr->compile($compilationContext);
if ($resolvedExpr->getType() != 'variable') {
throw new CompilerException("Expression '" . $resolvedExpr->getType() . '" cannot be used as exception', $expr);
}
$variableVariable = $compilationContext->symbolTable->getVariableForRead($resolvedExpr->getCode(), $compilationContext, $expr);
if ($variableVariable->getType() != 'variable') {
throw new CompilerException("Variable '" . $variableVariable->getType() . "' cannot be used as exception", $expr);
}
$codePrinter->output('zephir_throw_exception_debug(' . $variableVariable->getName() . ', "' . Compiler::getShortUserPath($statement['expr']['file']) . '", ' . $statement['expr']['line'] . ' TSRMLS_CC);');
if (!$compilationContext->insideTryCatch) {
$codePrinter->output('ZEPHIR_MM_RESTORE();');
$codePrinter->output('return;');
} else {
$codePrinter->output('goto try_end_' . $compilationContext->insideTryCatch . ';');
$codePrinter->outputBlankLine();
}
if ($variableVariable->isTemporal()) {
$variableVariable->setIdle(true);
}
}
/**
* @param array $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
* @throws CompilerException
*/
public function compile(array $expression, CompilationContext $compilationContext)
{
if (!isset($expression['left'])) {
throw new CompilerException("Invalid 'left' operand for 'irange' expression", $expression['left']);
}
if (!isset($expression['right'])) {
throw new CompilerException("Invalid 'right' operand for 'irange' expression", $expression['right']);
}
$builder = new FunctionCallBuilder('range', array(array('parameter' => $expression['left']), array('parameter' => $expression['right'])));
/**
* Implicit type coercing
*/
$castBuilder = new CastOperatorBuilder('array', $builder);
$expression = new Expression($castBuilder->get());
$expression->setReadOnly($this->_readOnly);
return $expression->compile($compilationContext);
}
/**
* @param array $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
* @throws CompilerException
*/
public function compile(array $expression, CompilationContext $compilationContext)
{
if (!isset($expression['left'])) {
throw new CompilerException("Invalid 'left' operand for 'irange' expression", $expression['left']);
}
if (!isset($expression['right'])) {
throw new CompilerException("Invalid 'right' operand for 'irange' expression", $expression['right']);
}
$exprBuilder = Expression\Builder\BuilderFactory::getInstance();
/**
* Implicit type coercing
*/
$castBuilder = $exprBuilder->operators()->cast(Types::ARRAY_, $exprBuilder->statements()->functionCall('range', array($expression['left'], $expression['right'])));
$expression = new Expression($castBuilder->build());
$expression->setReadOnly($this->_readOnly);
return $expression->compile($compilationContext);
}
/**
* Intercepts calls to built-in methods
*
* @param string $methodName
* @param object $caller
* @param CompilationContext $compilationContext
* @param Call $call
* @param array $expression
* @throws CompilerException
* @return bool|\Zephir\CompiledExpression
*/
public function invokeMethod($methodName, $caller, CompilationContext $compilationContext, Call $call, array $expression)
{
if (method_exists($this, $methodName)) {
return $this->{$methodName}($caller, $compilationContext, $call, $expression);
}
if (isset($this->methodMap[$methodName])) {
if (isset($expression['parameters'])) {
$parameters = $expression['parameters'];
array_unshift($parameters, array('parameter' => $caller));
} else {
$parameters = array(array('parameter' => $caller));
}
$builder = new FunctionCallBuilder($this->methodMap[$methodName], $parameters, FunctionCall::CALL_NORMAL, $expression['file'], $expression['line'], $expression['char']);
$expression = new Expression($builder->get());
return $expression->compile($compilationContext);
}
throw new CompilerException(sprintf('Method "%s" is not a built-in method of type "%s"', $methodName, $this->getTypeName()), $expression);
}
/**
*
* @param array $expression
* @param \CompilationContext $compilationContext
* @return \CompiledExpression
*/
public function compile($expression, CompilationContext $compilationContext)
{
$compilationContext->headersManager->add('kernel/operators');
if (!isset($expression['left'])) {
throw new CompilerException("Invalid 'left' operand for 'empty' expression", $expression['left']);
}
$leftExpr = new Expression($expression['left']);
$leftExpr->setReadOnly(true);
$left = $leftExpr->compile($compilationContext);
if ($left->getType() != 'variable') {
throw new CompilerException("'empty' operand only can be a variable", $expression['left']);
}
$variableLeft = $compilationContext->symbolTable->getVariableForRead($left->getCode(), $compilationContext, $expression['left']);
if ($variableLeft->isNotVariableAndString()) {
throw new CompilerException("Only dynamic/string variables can be used in 'empty' operators", $expression['left']);
}
return new CompiledExpression('bool', 'ZEPHIR_IS_EMPTY(' . $variableLeft->getName() . ')', $expression);
}
/**
* @param CompilationContext $compilationContext
* @throws CompilerException
*/
public function compile(CompilationContext $compilationContext)
{
$compilationContext->headersManager->add('kernel/array');
$expression = $this->_statement['expr'];
$flags = 'PH_SEPARATE';
if ($expression['type'] == 'list') {
$expression = $expression['left'];
}
switch ($expression['type']) {
case 'array-access':
$expr = new Expression($expression['left']);
$expr->setReadOnly(true);
$exprVar = $expr->compile($compilationContext);
$variable = $compilationContext->symbolTable->getVariableForWrite($exprVar->getCode(), $compilationContext, $this->_statement);
$expr = new Expression($expression['right']);
$expr->setReadOnly(true);
$exprIndex = $expr->compile($compilationContext);
break;
case 'property-access':
$expr = new Expression($expression['left']);
$expr->setReadOnly(true);
$exprVar = $expr->compile($compilationContext);
$variable = $compilationContext->symbolTable->getVariableForWrite($exprVar->getCode(), $compilationContext, $this->_statement);
$variableCode = $compilationContext->backend->getVariableCode($variable);
$compilationContext->headersManager->add('kernel/object');
$compilationContext->codePrinter->output('zephir_unset_property(' . $variableCode . ', "' . $expression['right']['value'] . '" TSRMLS_CC);');
return true;
case 'property-dynamic-access':
//@todo fix it
//@todo fix it
default:
throw new CompilerException('Cannot use expression type: ' . $expression['type'] . ' in "unset"', $expression);
}
if (!in_array($variable->getType(), array('variable', 'array'))) {
throw new CompilerException('Cannot use variable type: ' . $variable->gettype() . ' in "unset"', $expression['left']);
}
if ($variable->hasDifferentDynamicType(array('undefined', 'array', 'object', 'null'))) {
$compilationContext->logger->warning('Possible attempt to use non array/object in unset operator', 'non-valid-unset', $expression['left']);
}
$compilationContext->backend->arrayUnset($variable, $exprIndex, $flags, $compilationContext);
}
/**
* Intercepts calls to built-in methods
*
* @param string $methodName
* @param object $caller
* @param CompilationContext $compilationContext
* @param Call $call
* @param array $expression
* @throws CompilerException
* @return bool|\Zephir\CompiledExpression
*/
public function invokeMethod($methodName, $caller, CompilationContext $compilationContext, Call $call, array $expression)
{
/**
* Checks first whether the method exist in the array type definition
*/
if (method_exists($this, $methodName)) {
return $this->{$methodName}($caller, $compilationContext, $call, $expression);
}
/**
* Check the method map
*/
if (isset($this->methodMap[$methodName])) {
$paramNumber = $this->getNumberParam($methodName);
if ($paramNumber == 0) {
if (isset($expression['parameters'])) {
$parameters = $expression['parameters'];
array_unshift($parameters, array('parameter' => $caller));
} else {
$parameters = array(array('parameter' => $caller));
}
} else {
if (isset($expression['parameters'])) {
$parameters = array();
foreach ($expression['parameters'] as $number => $parameter) {
if ($number == $paramNumber) {
$parameters[] = null;
}
$parameters[] = $parameter;
}
$parameters[$paramNumber] = array('parameter' => $caller);
} else {
$parameters = array(array('parameter' => $caller));
}
}
$builder = new FunctionCallBuilder($this->methodMap[$methodName], $parameters, FunctionCall::CALL_NORMAL, $expression['file'], $expression['line'], $expression['char']);
$expression = new Expression($builder->get());
return $expression->compile($compilationContext);
}
throw new CompilerException(sprintf('Method "%s" is not a built-in method of type "%s"', $methodName, $this->getTypeName()), $expression);
}
public function compile($expression, CompilationContext $compilationContext)
{
if (!isset($expression['left'])) {
throw new CompilerException("Invalid 'left' operand for 'unlikely' expression", $expression['left']);
}
$leftExpr = new Expression($expression['left']);
$leftExpr->setReadOnly(true);
$left = $leftExpr->compile($compilationContext);
if ($left->getType() == 'bool') {
return new CompiledExpression('bool', 'unlikely(' . $left->getCode() . ')', $expression);
}
if ($left->getType() == 'variable') {
$variable = $compilationContext->symbolTable->getVariableForRead($left->getCode(), $compilationContext, $expression['left']);
switch ($variable->getType()) {
case 'bool':
return new CompiledExpression('bool', 'unlikely(' . $variable->getName() . ')', $expression);
default:
return new CompiledExpression('bool', 'unlikely(zephir_is_true(' . $variable->getName() . '))', $expression);
}
}
throw new CompilerException("Cannot use expression type: '" . $left->getType() . "' in 'unlikely' operator", $expression['left']);
}
/**
* Compile expression
*
* @param $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
* @throws CompilerException
* @throws Exception
*/
public function compile($expression, CompilationContext $compilationContext)
{
if (!isset($expression['left'])) {
throw new \Exception("Missing left part of the expression");
}
$leftExpr = new Expression($expression['left']);
$leftExpr->setReadOnly($this->_readOnly);
$left = $leftExpr->compile($compilationContext);
switch ($left->getType()) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
case 'double':
return new CompiledExpression($left->getType(), '-' . $left->getCode(), $expression);
case 'variable':
$variable = $compilationContext->symbolTable->getVariable($left->getCode());
switch ($variable->getType()) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
case 'double':
return new CompiledExpression($variable->getType(), '-' . $variable->getName(), $expression);
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$compilationContext->codePrinter->output('zephir_negate(' . $compilationContext->backend->getVariableCode($variable) . ' TSRMLS_CC);');
return new CompiledExpression('variable', $variable->getName(), $expression);
default:
throw new CompilerException("Cannot operate minus with variable of '" . $left->getType() . "' type");
}
break;
default:
throw new CompilerException("Cannot operate minus with '" . $left->getType() . "' type");
}
}
/**
* @param CompilationContext $compilationContext
* @param boolean $unreachable
* @param int $branchType
* @return Branch
*/
public function compile(CompilationContext $compilationContext, $unreachable = false, $branchType = Branch::TYPE_UNKNOWN)
{
$compilationContext->codePrinter->increaseLevel();
$compilationContext->currentBranch++;
/**
* Create a new branch
*/
$currentBranch = new Branch();
$currentBranch->setType($branchType);
$currentBranch->setUnreachable($unreachable);
/**
* Activate branch in the branch manager
*/
$compilationContext->branchManager->addBranch($currentBranch);
$this->_unreachable = $unreachable;
$statements = $this->_statements;
foreach ($statements as $statement) {
/**
* Generate GDB hints
*/
if ($this->_debug) {
if (isset($statement['file'])) {
if ($statement['type'] != 'declare' && $statement['type'] != 'comment') {
$compilationContext->codePrinter->outputNoIndent('#line ' . $statement['line'] . ' "' . $statement['file'] . '"');
}
}
}
/**
* Show warnings if code is generated when the 'unreachable state' is 'on'
*/
if ($this->_unreachable === true) {
switch ($statement['type']) {
case 'echo':
$compilationContext->logger->warning('Unreachable code', "unreachable-code", $statement['expressions'][0]);
break;
case 'let':
$compilationContext->logger->warning('Unreachable code', "unreachable-code", $statement['assignments'][0]);
break;
case 'fetch':
case 'fcall':
case 'mcall':
case 'scall':
case 'if':
case 'while':
case 'do-while':
case 'switch':
case 'for':
case 'return':
case 'c-block':
if (isset($statement['expr'])) {
$compilationContext->logger->warning('Unreachable code', "unreachable-code", $statement['expr']);
} else {
$compilationContext->logger->warning('Unreachable code', "unreachable-code", $statement);
}
break;
default:
$compilationContext->logger->warning('Unreachable code', "unreachable-code", $statement);
}
}
switch ($statement['type']) {
case 'let':
$letStatement = new LetStatement($statement);
$letStatement->compile($compilationContext);
break;
case 'echo':
$echoStatement = new EchoStatement($statement);
$echoStatement->compile($compilationContext);
break;
case 'declare':
$declareStatement = new DeclareStatement($statement);
$declareStatement->compile($compilationContext);
break;
case 'if':
$ifStatement = new IfStatement($statement);
$ifStatement->compile($compilationContext);
break;
case 'while':
$whileStatement = new WhileStatement($statement);
$whileStatement->compile($compilationContext);
break;
case 'do-while':
$doWhileStatement = new DoWhileStatement($statement);
$doWhileStatement->compile($compilationContext);
break;
case 'switch':
$switchStatement = new SwitchStatement($statement);
$switchStatement->compile($compilationContext);
break;
case 'for':
$forStatement = new ForStatement($statement);
$forStatement->compile($compilationContext);
break;
case 'return':
$returnStatement = new ReturnStatement($statement);
$returnStatement->compile($compilationContext);
$this->_unreachable = true;
break;
case 'require':
$requireStatement = new RequireStatement($statement);
$requireStatement->compile($compilationContext);
break;
case 'loop':
$loopStatement = new LoopStatement($statement);
$loopStatement->compile($compilationContext);
break;
case 'break':
$breakStatement = new BreakStatement($statement);
$breakStatement->compile($compilationContext);
$this->_unreachable = true;
break;
case 'continue':
$continueStatement = new ContinueStatement($statement);
$continueStatement->compile($compilationContext);
$this->_unreachable = true;
break;
case 'unset':
$unsetStatement = new UnsetStatement($statement);
$unsetStatement->compile($compilationContext);
break;
case 'throw':
$throwStatement = new ThrowStatement($statement);
$throwStatement->compile($compilationContext);
$this->_unreachable = true;
break;
case 'try-catch':
$throwStatement = new TryCatchStatement($statement);
$throwStatement->compile($compilationContext);
$this->_unreachable = false;
break;
case 'fetch':
$expr = new Expression($statement['expr']);
$expr->setExpectReturn(false);
$compiledExpression = $expr->compile($compilationContext);
$compilationContext->codePrinter->output($compiledExpression->getCode() . ';');
break;
case 'mcall':
$methodCall = new MethodCall();
$expr = new Expression($statement['expr']);
$expr->setExpectReturn(false);
$methodCall->compile($expr, $compilationContext);
break;
case 'fcall':
$functionCall = new FunctionCall();
$expr = new Expression($statement['expr']);
$expr->setExpectReturn(false);
$compiledExpression = $functionCall->compile($expr, $compilationContext);
switch ($compiledExpression->getType()) {
case 'int':
case 'double':
case 'uint':
case 'long':
case 'ulong':
case 'char':
case 'uchar':
case 'bool':
$compilationContext->codePrinter->output($compiledExpression->getCode() . ';');
break;
}
break;
case 'scall':
$methodCall = new StaticCall();
$expr = new Expression($statement['expr']);
$expr->setExpectReturn(false);
$methodCall->compile($expr, $compilationContext);
break;
case 'cblock':
$compilationContext->codePrinter->output($statement['value']);
break;
case 'empty':
break;
default:
throw new Exception('Unsupported statement: ' . $statement['type']);
}
if ($statement['type'] != 'comment') {
$this->_lastStatement = $statement;
}
}
/**
* Traverses temporal variables created in a specific branch
* marking them as idle
*/
$compilationContext->symbolTable->markTemporalVariablesIdle($compilationContext);
$compilationContext->branchManager->removeBranch($currentBranch);
$compilationContext->currentBranch--;
$compilationContext->codePrinter->decreaseLevel();
return $currentBranch;
}
/**
* Assigns a default value
*
* @param array $parameter
* @param CompilationContext $compilationContext
* @return string
* @throws CompilerException
*/
public function assignDefaultValue(array $parameter, CompilationContext $compilationContext)
{
if (isset($parameter['data-type'])) {
$dataType = $parameter['data-type'];
} else {
$dataType = 'variable';
}
/**
* Class-Hinted parameters only can be null?
*/
if (isset($parameter['cast'])) {
if ($parameter['default']['type'] != 'null') {
throw new CompilerException('Class-Hinted parameters only can have "null" as default parameter', $parameter);
}
}
$oldCodePrinter = $compilationContext->codePrinter;
$codePrinter = new CodePrinter();
$codePrinter->increaseLevel();
$codePrinter->increaseLevel();
$compilationContext->codePrinter = $codePrinter;
$paramVariable = $compilationContext->symbolTable->getVariableForWrite($parameter['name'], $compilationContext);
/**
* @todo Refactoring this place, move to one - static-constant-access
*/
switch ($dataType) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
switch ($parameter['default']['type']) {
case 'static-constant-access':
/**
* Now I can write code for easy use on Expression because code in this method don't write with codePrinter ;(
* @todo Rewrite all to codePrinter
*/
$symbolVariable = $compilationContext->symbolTable->getVariableForWrite($parameter['name'], $compilationContext, $parameter['default']);
$expression = new Expression($parameter['default']);
$expression->setExpectReturn(true, $symbolVariable);
$compiledExpression = $expression->compile($compilationContext);
if ($compiledExpression->getType() != 'int') {
throw new CompilerException("Default parameter value type: " . $compiledExpression->getType() . " cannot be assigned to variable(int)", $parameter);
}
$parameter['default']['type'] = $compiledExpression->getType();
$parameter['default']['value'] = $compiledExpression->getCode();
$compilationContext->codePrinter = $oldCodePrinter;
return $this->assignDefaultValue($parameter, $compilationContext);
break;
case 'null':
$codePrinter->output($parameter['name'] . ' = 0;');
break;
case 'int':
case 'uint':
case 'long':
$codePrinter->output($parameter['name'] . ' = ' . $parameter['default']['value'] . ';');
break;
case 'double':
$codePrinter->output($parameter['name'] . ' = (int) ' . $parameter['default']['value'] . ';');
break;
default:
throw new CompilerException("Default parameter value type: " . $parameter['default']['type'] . " cannot be assigned to variable(int)", $parameter);
}
break;
case 'double':
switch ($parameter['default']['type']) {
case 'static-constant-access':
/**
* Now I can write code for easy use on Expression because code in this method don't write with codePrinter ;(
* @todo Rewrite all to codePrinter
*/
$symbolVariable = $compilationContext->symbolTable->getVariableForWrite($parameter['name'], $compilationContext, $parameter['default']);
$expression = new Expression($parameter['default']);
$expression->setExpectReturn(true, $symbolVariable);
$compiledExpression = $expression->compile($compilationContext);
if ($compiledExpression->getType() != 'double') {
throw new CompilerException("Default parameter value type: " . $compiledExpression->getType() . " cannot be assigned to variable(double)", $parameter);
}
$parameter['default']['type'] = $compiledExpression->getType();
$parameter['default']['value'] = $compiledExpression->getCode();
$compilationContext->codePrinter = $oldCodePrinter;
return $this->assignDefaultValue($parameter, $compilationContext);
break;
case 'null':
$codePrinter->output($parameter['name'] . ' = 0;');
break;
case 'int':
case 'uint':
case 'long':
$codePrinter->output($parameter['name'] . ' = (double) ' . $parameter['default']['value'] . ';');
break;
case 'double':
$codePrinter->output($parameter['name'] . ' = ' . $parameter['default']['value'] . ';');
break;
default:
throw new CompilerException("Default parameter value type: " . $parameter['default']['type'] . " cannot be assigned to variable(double)", $parameter);
}
break;
case 'bool':
switch ($parameter['default']['type']) {
case 'static-constant-access':
/**
* Now I can write code for easy use on Expression because code in this method don't write with codePrinter ;(
* @todo Rewrite all to codePrinter
*/
$symbolVariable = $compilationContext->symbolTable->getVariableForWrite($parameter['name'], $compilationContext, $parameter['default']);
$expression = new Expression($parameter['default']);
$expression->setExpectReturn(true, $symbolVariable);
$compiledExpression = $expression->compile($compilationContext);
if ($compiledExpression->getType() != 'bool') {
throw new CompilerException("Default parameter value type: " . $compiledExpression->getType() . " cannot be assigned to variable(bool)", $parameter);
}
$parameter['default']['type'] = $compiledExpression->getType();
$parameter['default']['value'] = $compiledExpression->getCode();
$compilationContext->codePrinter = $oldCodePrinter;
return $this->assignDefaultValue($parameter, $compilationContext);
break;
case 'null':
$codePrinter->output($parameter['name'] . ' = 0;');
break;
case 'bool':
if ($parameter['default']['value'] == 'true') {
$codePrinter->output($parameter['name'] . ' = 1;');
} else {
$codePrinter->output($parameter['name'] . ' = 0;');
}
break;
default:
throw new CompilerException("Default parameter value type: " . $parameter['default']['type'] . " cannot be assigned to variable(bool)", $parameter);
}
break;
case 'string':
$compilationContext->symbolTable->mustGrownStack(true);
$compilationContext->headersManager->add('kernel/memory');
switch ($parameter['default']['type']) {
case 'static-constant-access':
/**
* Now I can write code for easy use on Expression because code in this method don't write with codePrinter ;(
* @todo Rewrite all to codePrinter
*/
$symbolVariable = $compilationContext->symbolTable->getVariableForWrite($parameter['name'], $compilationContext, $parameter['default']);
$expression = new Expression($parameter['default']);
$expression->setExpectReturn(true, $symbolVariable);
$compiledExpression = $expression->compile($compilationContext);
if ($compiledExpression->getType() != 'string') {
throw new CompilerException("Default parameter value type: " . $compiledExpression->getType() . " cannot be assigned to variable(string)", $parameter);
}
$parameter['default']['type'] = $compiledExpression->getType();
$parameter['default']['value'] = $compiledExpression->getCode();
$compilationContext->codePrinter = $oldCodePrinter;
return $this->assignDefaultValue($parameter, $compilationContext);
break;
case 'null':
$compilationContext->backend->initVar($paramVariable, $compilationContext);
$compilationContext->backend->assignString($paramVariable, null, $compilationContext);
break;
case 'string':
$compilationContext->backend->initVar($paramVariable, $compilationContext);
$compilationContext->backend->assignString($paramVariable, Utils::addSlashes($parameter['default']['value'], true), $compilationContext);
break;
default:
throw new CompilerException("Default parameter value type: " . $parameter['default']['type'] . " cannot be assigned to variable(string)", $parameter);
}
break;
case 'array':
$compilationContext->symbolTable->mustGrownStack(true);
$compilationContext->headersManager->add('kernel/memory');
switch ($parameter['default']['type']) {
case 'null':
$compilationContext->backend->initVar($paramVariable, $compilationContext);
$compilationContext->backend->initArray($paramVariable, $compilationContext, null);
break;
case 'empty-array':
case 'array':
$compilationContext->backend->initVar($paramVariable, $compilationContext);
$compilationContext->backend->initArray($paramVariable, $compilationContext, null);
break;
default:
throw new CompilerException("Default parameter value type: " . $parameter['default']['type'] . " cannot be assigned to variable(array)", $parameter);
}
break;
case 'variable':
$symbolVariable = $compilationContext->symbolTable->getVariableForWrite($parameter['name'], $compilationContext, $parameter['default']);
switch ($parameter['default']['type']) {
case 'static-constant-access':
/**
* Now I can write code for easy use on Expression because code in this method don't write with codePrinter ;(
* @todo Rewrite all to codePrinter
*/
$expression = new Expression($parameter['default']);
$expression->setExpectReturn(true, $symbolVariable);
$compiledExpression = $expression->compile($compilationContext);
$parameter['default']['type'] = $compiledExpression->getType();
$parameter['default']['value'] = $compiledExpression->getCode();
$compilationContext->codePrinter = $oldCodePrinter;
return $this->assignDefaultValue($parameter, $compilationContext);
break;
case 'int':
case 'uint':
case 'long':
case 'ulong':
$compilationContext->symbolTable->mustGrownStack(true);
$compilationContext->headersManager->add('kernel/memory');
$compilationContext->backend->initVar($symbolVariable, $compilationContext);
$compilationContext->backend->assignLong($symbolVariable, $parameter['default']['value'], $compilationContext);
break;
case 'double':
$compilationContext->symbolTable->mustGrownStack(true);
$compilationContext->headersManager->add('kernel/memory');
$compilationContext->backend->initVar($symbolVariable, $compilationContext);
$compilationContext->backend->assignDouble($symbolVariable, $parameter['default']['value'], $compilationContext);
break;
case 'string':
$compilationContext->symbolTable->mustGrownStack(true);
$compilationContext->headersManager->add('kernel/memory');
$compilationContext->backend->initVar($symbolVariable, $compilationContext);
$compilationContext->backend->assignString($paramVariable, Utils::addSlashes($parameter['default']['value'], true), $compilationContext);
break;
case 'bool':
$expectedMutations = $compilationContext->symbolTable->getExpectedMutations($parameter['name']);
if ($expectedMutations < 2) {
if ($parameter['default']['value'] == 'true') {
$compilationContext->backend->assignZval($paramVariable, $compilationContext->backend->resolveValue('true', $compilationContext), $compilationContext);
} else {
$compilationContext->backend->assignZval($paramVariable, $compilationContext->backend->resolveValue('false', $compilationContext), $compilationContext);
}
} else {
$compilationContext->symbolTable->mustGrownStack(true);
$compilationContext->headersManager->add('kernel/memory');
if ($parameter['default']['value'] == 'true') {
$compilationContext->backend->copyOnWrite($paramVariable, $compilationContext->backend->resolveValue('true', $compilationContext), $compilationContext);
} else {
$compilationContext->backend->copyOnWrite($paramVariable, $compilationContext->backend->resolveValue('false', $compilationContext), $compilationContext);
}
}
break;
case 'null':
$expectedMutations = $compilationContext->symbolTable->getExpectedMutations($parameter['name']);
if ($expectedMutations < 2) {
$compilationContext->backend->assignZval($symbolVariable, $compilationContext->backend->resolveValue('null', $compilationContext), $compilationContext);
} else {
$compilationContext->symbolTable->mustGrownStack(true);
$compilationContext->headersManager->add('kernel/memory');
$compilationContext->backend->copyOnWrite($paramVariable, $compilationContext->backend->resolveValue('null', $compilationContext), $compilationContext);
}
break;
case 'empty-array':
$compilationContext->symbolTable->mustGrownStack(true);
$compilationContext->headersManager->add('kernel/memory');
$compilationContext->backend->initVar($symbolVariable, $compilationContext);
$compilationContext->backend->initArray($symbolVariable, $compilationContext, null);
break;
default:
throw new CompilerException("Default parameter value type: " . $parameter['default']['type'] . " cannot be assigned to variable(variable)", $parameter);
}
break;
default:
throw new CompilerException("Default parameter type: " . $dataType, $parameter);
}
$compilationContext->codePrinter = $oldCodePrinter;
return $codePrinter->getOutput();
}
/**
* Compiles a reference to a value
*
* @param array $expression
* @param CompilationContext $compilationContext
* @return CompiledExpression
*/
public function compile($expression, CompilationContext $compilationContext)
{
/**
* Resolves the symbol that expects the value
*/
if ($this->_expecting) {
if ($this->_expectingVariable) {
$symbolVariable = $this->_expectingVariable;
if ($symbolVariable->getType() != 'variable') {
throw new CompilerException("Cannot use variable type: " . $symbolVariable->getType() . " to store a reference", $expression);
}
} else {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForWrite('variable', $compilationContext, $expression);
}
} else {
$symbolVariable = $compilationContext->symbolTable->getTempVariableForWrite('variable', $compilationContext, $expression);
}
$leftExpr = new Expression($expression['left']);
$leftExpr->setReadOnly($this->_readOnly);
$left = $leftExpr->compile($compilationContext);
switch ($left->getType()) {
case 'variable':
case 'string':
case 'object':
case 'array':
case 'callable':
break;
default:
throw new CompilerException("Cannot obtain a reference from type: " . $left->getType(), $expression);
}
$leftVariable = $compilationContext->symbolTable->getVariableForRead($left->getCode(), $compilationContext, $expression);
switch ($leftVariable->getType()) {
case 'variable':
case 'string':
case 'object':
case 'array':
case 'callable':
break;
default:
throw new CompilerException("Cannot obtain reference from variable type: " . $leftVariable->getType(), $expression);
}
$symbolVariable->setMustInitNull(true);
$compilationContext->symbolTable->mustGrownStack(true);
$symbolVariable->increaseVariantIfNull();
$compilationContext->codePrinter->output('ZEPHIR_MAKE_REFERENCE(' . $symbolVariable->getName() . ', ' . $leftVariable->getName() . ');');
return new CompiledExpression('reference', $symbolVariable->getRealName(), $expression);
}
/**
* Compiles a type cast operation
*
* @param $expression
* @param CompilationContext $compilationContext
* @return bool|CompiledExpression
* @throws CompilerException
*/
public function compile($expression, CompilationContext $compilationContext)
{
$expr = new Expression($expression['right']);
$resolved = $expr->compile($compilationContext);
switch ($expression['left']) {
case 'int':
switch ($resolved->getType()) {
case 'null':
return new CompiledExpression('int', 0, $expression);
case 'int':
return new CompiledExpression('int', $resolved->getCode(), $expression);
case 'double':
return new CompiledExpression('int', '(int) ' . $resolved->getCode(), $expression);
case 'bool':
return new CompiledExpression('int', $resolved->getBooleanCode(), $expression);
case 'string':
$compilationContext->headersManager->add('kernel/operators');
/**
* zephir_get_intval_ex use zval variable
* before use with it we create a new variable and assign value of literal
*
* @todo Optimize by creating native function for string without zval using
*/
$symbolVariable = $compilationContext->symbolTable->getTempVariableForWrite('string', $compilationContext);
$let = new LetVariable();
$original = $resolved->getOriginal();
$original['operator'] = 'assign';
$let->assign($symbolVariable->getName(), $symbolVariable, $resolved, new ReadDetector(), $compilationContext, $original);
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
return new CompiledExpression('int', 'zephir_get_intval_ex(' . $symbol . ')', $expression);
case 'array':
$compilationContext->headersManager->add('kernel/operators');
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
return new CompiledExpression('int', 'zephir_get_intval(' . $symbol . ')', $expression);
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
switch ($symbolVariable->getType()) {
case 'int':
return new CompiledExpression('int', $symbolVariable->getName(), $expression);
case 'double':
return new CompiledExpression('int', '(int) (' . $symbolVariable->getName() . ')', $expression);
case 'bool':
return new CompiledExpression('int', '(int) (' . $symbolVariable->getName() . ')', $expression);
case 'array':
case 'variable':
case 'string':
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
return new CompiledExpression('int', 'zephir_get_intval(' . $symbol . ')', $expression);
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . "(" . $symbolVariable->getType() . ") to " . $expression['left'], $expression);
}
break;
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
break;
case 'long':
switch ($resolved->getType()) {
case 'int':
return new CompiledExpression('long', $resolved->getCode(), $expression);
case 'double':
return new CompiledExpression('long', '(long) ' . $resolved->getCode(), $expression);
case 'bool':
return new CompiledExpression('long', $resolved->getBooleanCode(), $expression);
case 'array':
$compilationContext->headersManager->add('kernel/operators');
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
return new CompiledExpression('long', 'zephir_get_intval(' . $symbolVariable->getName() . ')', $expression);
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
switch ($symbolVariable->getType()) {
case 'int':
return new CompiledExpression('long', $symbolVariable->getName(), $expression);
case 'double':
return new CompiledExpression('long', '(long) (' . $symbolVariable->getName() . ')', $expression);
case 'variable':
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
return new CompiledExpression('long', 'zephir_get_intval(' . $symbol . ')', $expression);
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . "(" . $symbolVariable->getType() . ") to " . $expression['left'], $expression);
}
break;
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
break;
case 'double':
switch ($resolved->getType()) {
case 'null':
return new CompiledExpression('double', 0, $expression);
case 'bool':
return new CompiledExpression('double', $resolved->getBooleanCode(), $expression);
case 'double':
return new CompiledExpression('double', $resolved->getCode(), $expression);
case 'array':
$compilationContext->headersManager->add('kernel/operators');
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
return new CompiledExpression('double', 'zephir_get_doubleval(' . $symbol . ')', $expression);
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
switch ($symbolVariable->getType()) {
case 'int':
return new CompiledExpression('double', $symbolVariable->getName(), $expression);
case 'double':
return new CompiledExpression('double', '(double) (' . $symbolVariable->getName() . ')', $expression);
case 'bool':
return new CompiledExpression('double', '(double) (' . $symbolVariable->getName() . ')', $expression);
case 'array':
case 'variable':
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
return new CompiledExpression('double', 'zephir_get_doubleval(' . $symbol . ')', $expression);
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . "(" . $symbolVariable->getType() . ") to " . $expression['left'], $expression);
}
break;
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
break;
case 'bool':
switch ($resolved->getType()) {
case 'int':
return new CompiledExpression('bool', '(zend_bool) ' . $resolved->getCode(), $expression);
case 'bool':
return new CompiledExpression('bool', $resolved->getCode(), $expression);
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
if ($symbolVariable->isTemporal()) {
$symbolVariable->setIdle(true);
}
switch ($symbolVariable->getType()) {
case 'variable':
return new CompiledExpression('bool', 'zephir_get_boolval(' . $symbol . ')', $expression);
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . "(" . $symbolVariable->getType() . ") to " . $expression['left'], $expression);
}
break;
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
break;
case 'char':
switch ($resolved->getType()) {
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$tempVariable = $compilationContext->symbolTable->getTempVariableForWrite('char', $compilationContext);
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
$variableCode = $compilationContext->backend->getVariableCode($symbolVariable);
$compilationContext->codePrinter->output($tempVariable->getName() . ' = (char) zephir_get_intval(' . $variableCode . ');');
return new CompiledExpression('variable', $tempVariable->getName(), $expression);
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
break;
case 'string':
switch ($resolved->getType()) {
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$compilationContext->symbolTable->mustGrownStack(true);
$symbolVariable = $compilationContext->symbolTable->getTempVariable('string', $compilationContext);
$symbolVariable->setMustInitNull(true);
$symbolVariable->setIsInitialized(true, $compilationContext);
$symbolVariable->increaseUses();
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
$resolvedVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext);
$resolvedCode = $compilationContext->backend->getVariableCode($resolvedVariable);
$compilationContext->codePrinter->output('zephir_get_strval(' . $symbol . ', ' . $resolvedCode . ');');
if ($symbolVariable->isTemporal()) {
$symbolVariable->setIdle(true);
}
return new CompiledExpression('variable', $symbolVariable->getName(), $expression);
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
break;
case 'array':
switch ($resolved->getType()) {
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$compilationContext->symbolTable->mustGrownStack(true);
$symbolVariable = $compilationContext->symbolTable->getTempVariable('array', $compilationContext, $expression);
$symbolVariable->setMustInitNull(true);
$symbolVariable->setIsInitialized(true, $compilationContext, $expression);
$symbolVariable->increaseUses();
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
$resolvedVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext);
$resolvedCode = $compilationContext->backend->getVariableCode($resolvedVariable);
$compilationContext->codePrinter->output('zephir_get_arrval(' . $symbol . ', ' . $resolvedCode . ');');
if ($symbolVariable->isTemporal()) {
$symbolVariable->setIdle(true);
}
return new CompiledExpression('variable', $symbolVariable->getName(), $expression);
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
break;
case 'object':
switch ($resolved->getType()) {
case 'int':
case 'double':
case 'bool':
case 'null':
case 'string':
case 'array':
$compilationContext->headersManager->add('kernel/operators');
$compilationContext->symbolTable->mustGrownStack(true);
$symbolVariable = $compilationContext->symbolTable->getTempVariable('variable', $compilationContext);
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
/**
* zephir_convert_to_object use zval variable
* before use with it we create a new variable and assign value of literal
*/
$let = new LetVariable();
$original = $resolved->getOriginal();
$original['operator'] = 'assign';
$let->assign($symbolVariable->getName(), $symbolVariable, $resolved, new ReadDetector(), $compilationContext, $original);
$compilationContext->codePrinter->output('zephir_convert_to_object(' . $symbol . ');');
return new CompiledExpression('variable', $symbolVariable->getName(), $expression);
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
$symbolVariable = $compilationContext->symbolTable->getVariableForRead($resolved->getCode(), $compilationContext, $expression);
$symbol = $compilationContext->backend->getVariableCode($symbolVariable);
if ($symbolVariable->isTemporal()) {
$symbolVariable->setIdle(true);
}
$compilationContext->codePrinter->output('zephir_convert_to_object(' . $symbol . ');');
return new CompiledExpression('variable', $symbolVariable->getName(), $expression);
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
break;
default:
throw new CompilerException("Cannot cast: " . $resolved->getType() . " to " . $expression['left'], $expression);
}
}
/**
* Compiles x::y[a][b][] = {expr} (multiple offset assignment)
*
* @param string $variable
* @param CompiledExpression $resolvedExpr
* @param CompilationContext $compilationContext,
* @param array $statement
*/
protected function _assignStaticPropertyArrayMultipleIndex($classEntry, $property, CompiledExpression $resolvedExpr, CompilationContext $compilationContext, $statement)
{
$codePrinter = $compilationContext->codePrinter;
$property = $statement['property'];
$compilationContext->headersManager->add('kernel/object');
/**
* Create a temporal zval (if needed)
*/
$variableExpr = $this->_getResolvedArrayItem($resolvedExpr, $compilationContext);
/**
* Only string/variable/int
*/
$offsetExprs = array();
foreach ($statement['index-expr'] as $indexExpr) {
$indexExpression = new Expression($indexExpr);
$resolvedIndex = $indexExpression->compile($compilationContext);
switch ($resolvedIndex->getType()) {
case 'string':
case 'int':
case 'uint':
case 'ulong':
case 'long':
case 'variable':
break;
default:
throw new CompilerException("Expression: " . $resolvedIndex->getType() . " cannot be used as index without cast", $statement['index-expr']);
}
$offsetExprs[] = $resolvedIndex;
}
$keys = '';
$numberParams = 1;
$offsetItems = array();
foreach ($offsetExprs as $offsetExpr) {
switch ($offsetExpr->getType()) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
$keys .= 'l';
$offsetItems[] = $offsetExpr->getCode();
$numberParams++;
break;
case 'string':
$keys .= 's';
$offsetItems[] = 'SL("' . $offsetExpr->getCode() . '")';
$numberParams += 2;
break;
case 'variable':
$variableIndex = $compilationContext->symbolTable->getVariableForRead($offsetExpr->getCode(), $compilationContext, $statement);
switch ($variableIndex->getType()) {
case 'int':
case 'uint':
case 'long':
case 'ulong':
$keys .= 'l';
$offsetItems[] = $variableIndex->getName();
$numberParams++;
break;
case 'string':
case 'variable':
$keys .= 'z';
$offsetItems[] = $variableIndex->getName();
$numberParams++;
break;
default:
throw new CompilerException("Variable: " . $variableIndex->getType() . " cannot be used as array index", $statement);
}
break;
default:
throw new CompilerException("Value: " . $offsetExpr->getType() . " cannot be used as array index", $statement);
}
}
$codePrinter->output('zephir_update_static_property_array_multi_ce(' . $classEntry . ', SL("' . $property . '"), &' . $variableExpr->getName() . ' TSRMLS_CC, SL("' . $keys . 'a"), ' . $numberParams . ', ' . join(', ', $offsetItems) . ');');
if ($variableExpr->isTemporal()) {
$variableExpr->setIdle(true);
}
}
/**
* Resolves an expression
*
* @param CompilationContext $compilationContext
* @return bool|CompiledExpression|mixed
* @throws CompilerException
*/
public function compile(CompilationContext $compilationContext)
{
$expression = $this->_expression;
$type = $expression['type'];
$compilableExpression = null;
switch ($type) {
case 'null':
return new LiteralCompiledExpression('null', null, $expression);
case 'int':
case 'integer':
return new LiteralCompiledExpression('int', $expression['value'], $expression);
case 'long':
case 'double':
case 'bool':
return new LiteralCompiledExpression($type, $expression['value'], $expression);
case 'string':
if (!$this->_stringOperation) {
if (ctype_digit($expression['value'])) {
return new CompiledExpression('int', $expression['value'], $expression);
}
}
return new LiteralCompiledExpression('string', str_replace(PHP_EOL, '\\n', $expression['value']), $expression);
case 'istring':
return new LiteralCompiledExpression('istring', str_replace(PHP_EOL, '\\n', $expression['value']), $expression);
case 'char':
if (!strlen($expression['value'])) {
throw new CompilerException("Invalid empty char literal", $expression);
}
if (strlen($expression['value']) > 2) {
if (strlen($expression['value']) > 10) {
throw new CompilerException("Invalid char literal: '" . substr($expression['value'], 0, 10) . "...'", $expression);
} else {
throw new CompilerException("Invalid char literal: '" . $expression['value'] . "'", $expression);
}
}
return new LiteralCompiledExpression('char', $expression['value'], $expression);
case 'variable':
$var = $compilationContext->symbolTable->getVariable($expression['value']);
if ($var) {
if ($var->getRealName() == 'this') {
$var = 'this';
} else {
$var = $var->getName();
}
} else {
$var = $expression['value'];
}
return new CompiledExpression('variable', $var, $expression);
case 'constant':
$compilableExpression = new Constants();
break;
case 'empty-array':
return $this->emptyArray($expression, $compilationContext);
case 'array-access':
$compilableExpression = new NativeArrayAccess();
$compilableExpression->setNoisy($this->isNoisy());
break;
case 'property-access':
$compilableExpression = new PropertyAccess();
$compilableExpression->setNoisy($this->isNoisy());
break;
case 'property-string-access':
case 'property-dynamic-access':
$compilableExpression = new PropertyDynamicAccess();
$compilableExpression->setNoisy($this->isNoisy());
break;
case 'static-constant-access':
$compilableExpression = new StaticConstantAccess();
break;
case 'static-property-access':
$compilableExpression = new StaticPropertyAccess();
break;
case 'fcall':
$functionCall = new FunctionCall();
return $functionCall->compile($this, $compilationContext);
case 'mcall':
$methodCall = new MethodCall();
return $methodCall->compile($this, $compilationContext);
case 'scall':
$staticCall = new StaticCall();
return $staticCall->compile($this, $compilationContext);
case 'isset':
$compilableExpression = new IssetOperator();
break;
case 'fetch':
$compilableExpression = new FetchOperator();
break;
case 'empty':
$compilableExpression = new EmptyOperator();
break;
case 'array':
$compilableExpression = new NativeArray();
break;
case 'new':
$compilableExpression = new NewInstanceOperator();
break;
case 'new-type':
$compilableExpression = new NewInstanceTypeOperator();
break;
case 'not':
$compilableExpression = new NotOperator();
break;
case 'bitwise_not':
$compilableExpression = new BitwiseNotOperator();
break;
case 'equals':
$compilableExpression = new EqualsOperator();
break;
case 'not-equals':
$compilableExpression = new NotEqualsOperator();
break;
case 'identical':
$compilableExpression = new IdenticalOperator();
break;
case 'not-identical':
$compilableExpression = new NotIdenticalOperator();
break;
case 'greater':
$compilableExpression = new GreaterOperator();
break;
case 'less':
$compilableExpression = new LessOperator();
break;
case 'less-equal':
$compilableExpression = new LessEqualOperator();
break;
case 'greater-equal':
$compilableExpression = new GreaterEqualOperator();
break;
case 'add':
$compilableExpression = new AddOperator();
break;
case 'minus':
$compilableExpression = new MinusOperator();
break;
case 'sub':
$compilableExpression = new SubOperator();
break;
case 'mul':
$compilableExpression = new MulOperator();
break;
case 'div':
$compilableExpression = new DivOperator();
break;
case 'mod':
$compilableExpression = new ModOperator();
break;
case 'and':
$compilableExpression = new AndOperator();
break;
case 'or':
$compilableExpression = new OrOperator();
break;
case 'bitwise_and':
$compilableExpression = new BitwiseAndOperator();
break;
case 'bitwise_or':
$compilableExpression = new BitwiseOrOperator();
break;
case 'bitwise_xor':
$compilableExpression = new BitwiseXorOperator();
break;
case 'bitwise_shiftleft':
$compilableExpression = new ShiftLeftOperator();
break;
case 'bitwise_shiftright':
$compilableExpression = new ShiftRightOperator();
break;
case 'concat':
$expr = new ConcatOperator();
$expr->setExpectReturn($this->_expecting, $this->_expectingVariable);
return $expr->compile($expression, $compilationContext);
case 'irange':
$compilableExpression = new RangeInclusiveOperator();
break;
case 'erange':
$compilableExpression = new RangeExclusiveOperator();
break;
case 'list':
if ($expression['left']['type'] == 'list') {
$compilationContext->logger->warning("Unnecessary extra parentheses", "extra-parentheses", $expression);
}
$numberPrints = $compilationContext->codePrinter->getNumberPrints();
$expr = new Expression($expression['left']);
$expr->setExpectReturn($this->_expecting, $this->_expectingVariable);
$resolved = $expr->compile($compilationContext);
if ($compilationContext->codePrinter->getNumberPrints() - $numberPrints <= 1) {
if (strpos($resolved->getCode(), ' ') !== false) {
return new CompiledExpression($resolved->getType(), '(' . $resolved->getCode() . ')', $expression);
}
}
return $resolved;
case 'cast':
$compilableExpression = new CastOperator();
break;
case 'type-hint':
return $this->compileTypeHint($expression, $compilationContext);
case 'instanceof':
$compilableExpression = new InstanceOfOperator();
break;
case 'clone':
$compilableExpression = new CloneOperator();
break;
case 'ternary':
$compilableExpression = new TernaryOperator();
break;
case 'short-ternary':
$expr = new ShortTernaryOperator();
$expr->setReadOnly($this->isReadOnly());
$expr->setExpectReturn($this->_expecting, $this->_expectingVariable);
return $expr->compile($expression, $compilationContext);
case 'likely':
if (!$this->_evalMode) {
throw new CompilerException("'likely' operator can only be used in evaluation expressions", $expression);
}
$expr = new LikelyOperator();
$expr->setReadOnly($this->isReadOnly());
return $expr->compile($expression, $compilationContext);
case 'unlikely':
if (!$this->_evalMode) {
throw new CompilerException("'unlikely' operator can only be used in evaluation expressions", $expression);
}
$expr = new UnlikelyOperator();
$expr->setReadOnly($this->isReadOnly());
return $expr->compile($expression, $compilationContext);
case 'typeof':
$compilableExpression = new TypeOfOperator();
break;
case 'require':
$compilableExpression = new RequireOperator();
break;
case 'closure':
$compilableExpression = new Closure();
break;
case 'closure-arrow':
$compilableExpression = new ClosureArrow();
break;
case 'reference':
$compilableExpression = new Reference();
break;
default:
throw new CompilerException("Unknown expression: " . $type, $expression);
}
if (!$compilableExpression) {
throw new CompilerException("Unknown expression passed as compilableExpression", $expression);
}
$compilableExpression->setReadOnly($this->isReadOnly());
$compilableExpression->setExpectReturn($this->_expecting, $this->_expectingVariable);
return $compilableExpression->compile($expression, $compilationContext);
}
/**
* Optimizes expressions
*
* @param $exprRaw
* @param CompilationContext $compilationContext
* @return bool|string
* @throws CompilerException
*/
public function optimize($exprRaw, CompilationContext $compilationContext)
{
$conditions = $this->optimizeNot($exprRaw, $compilationContext);
if ($conditions !== false) {
return $conditions;
}
/**
* Discard first level parentheses
*/
if ($exprRaw['type'] == 'list') {
$expr = new Expression($exprRaw['left']);
} else {
$expr = new Expression($exprRaw);
}
$expr->setReadOnly(true);
$expr->setEvalMode(true);
$compiledExpression = $expr->compile($compilationContext);
/**
* Possible corrupted expression?
*/
if (!is_object($compiledExpression)) {
throw new CompilerException('Corrupted expression: ' . $exprRaw['type'], $exprRaw);
}
/**
* Generate the condition according to the value returned by the evaluated expression
*/
switch ($compiledExpression->getType()) {
case 'null':
$this->_unreachable = true;
return '0';
case 'int':
case 'uint':
case 'long':
case 'ulong':
case 'double':
$code = $compiledExpression->getCode();
if (is_numeric($code)) {
if ($code == '1') {
$this->_unreachableElse = true;
} else {
$this->_unreachable = true;
}
}
return $code;
case 'char':
case 'uchar':
return $compiledExpression->getCode();
case 'bool':
$code = $compiledExpression->getBooleanCode();
if ($code == '1') {
$this->_unreachableElse = true;
} else {
if ($code == '0') {
$this->_unreachable = true;
}
}
return $code;
case 'variable':
$variableRight = $compilationContext->symbolTable->getVariableForRead($compiledExpression->getCode(), $compilationContext, $exprRaw);
$possibleValue = $variableRight->getPossibleValue();
if (is_object($possibleValue)) {
$possibleValueBranch = $variableRight->getPossibleValueBranch();
if ($possibleValueBranch instanceof Branch) {
/**
* Check if the possible value was assigned in the root branch
*/
if ($possibleValueBranch->getType() == Branch::TYPE_ROOT) {
if ($possibleValue instanceof LiteralCompiledExpression) {
switch ($possibleValue->getType()) {
case 'null':
$this->_unreachable = true;
break;
case 'bool':
if ($possibleValue->getBooleanCode() == '0') {
$this->_unreachable = true;
} else {
$this->_unreachableElse = true;
}
break;
case 'int':
if (!intval($possibleValue->getCode())) {
$this->_unreachable = true;
} else {
$this->_unreachableElse = true;
}
break;
case 'double':
if (!floatval($possibleValue->getCode())) {
$this->_unreachable = true;
} else {
$this->_unreachableElse = true;
}
break;
default:
//echo $possibleValue->getType();
}
}
}
}
}
$this->_usedVariables[] = $variableRight->getName();
/**
* Evaluate the variable
*/
switch ($variableRight->getType()) {
case 'int':
case 'uint':
case 'char':
case 'uchar':
case 'long':
case 'ulong':
return $variableRight->getName();
case 'string':
return $variableRight->getName() . ' && Z_STRLEN_P(' . $variableRight->getName() . ')';
case 'bool':
return $variableRight->getName();
case 'double':
return $variableRight->getName();
case 'variable':
$compilationContext->headersManager->add('kernel/operators');
if ($variableRight->isLocalOnly()) {
return 'zephir_is_true(&' . $variableRight->getName() . ')';
} else {
return 'zephir_is_true(' . $variableRight->getName() . ')';
}
break;
default:
throw new CompilerException("Variable can't be evaluated " . $variableRight->getType(), $exprRaw);
}
break;
default:
throw new CompilerException("Expression " . $compiledExpression->getType() . " can't be evaluated", $exprRaw);
}
}