/**
* Assigns a zval value to a static low-level type
*
* @todo rewrite this to build ifs and throw from builders
*
* @param array $parameter
* @param CompilationContext $compilationContext
* @return string
* @throws CompilerException
*/
public function checkStrictType(array $parameter, CompilationContext $compilationContext)
{
if (isset($parameter['data-type'])) {
$dataType = $parameter['data-type'];
} else {
$dataType = 'variable';
}
$compilationContext->headersManager->add('ext/spl/spl_exceptions');
$compilationContext->headersManager->add('kernel/exception');
$codePrinter = new CodePrinter();
$codePrinter->increaseLevel();
$oldCodePrinter = $compilationContext->codePrinter;
$compilationContext->codePrinter = $codePrinter;
$compilationContext->backend->checkStrictType($dataType, $parameter, $compilationContext);
$compilationContext->codePrinter = $oldCodePrinter;
return $codePrinter->getOutput();
}
public function initializeVariableDefaults($variables, CompilationContext $compilationContext)
{
$codePrinter = new CodePrinter();
$codePrinter->increaseLevel();
$oldCodePrinter = $compilationContext->codePrinter;
$compilationContext->codePrinter = $codePrinter;
/* Initialize default values in dynamic variables */
foreach ($variables as $variable) {
/**
* Initialize 'dynamic' variables with default values
*/
if ($variable->getType() == 'variable') {
if ($variable->getNumberUses() > 0) {
if ($variable->getName() != 'this_ptr' && $variable->getName() != 'return_value' && $variable->getName() != 'return_value_ptr') {
$defaultValue = $variable->getDefaultInitValue();
if (is_array($defaultValue)) {
$symbolTable->mustGrownStack(true);
$compilationContext->backend->initVar($variable, $compilationContext);
switch ($defaultValue['type']) {
case 'int':
case 'uint':
case 'long':
$compilationContext->backend->assignLong($variable, $defaultValue['value'], $compilationContext);
break;
case 'bool':
$compilationContext->backend->assignBool($variable, $defaultValue['value'], $compilationContext);
break;
case 'char':
case 'uchar':
if (strlen($defaultValue['value']) > 2) {
if (strlen($defaultValue['value']) > 10) {
throw new CompilerException("Invalid char literal: '" . substr($defaultValue['value'], 0, 10) . "...'", $defaultValue);
} else {
throw new CompilerException("Invalid char literal: '" . $defaultValue['value'] . "'", $defaultValue);
}
}
$compilationContext->backend->assignLong($variable, '\'' . $defaultValue['value'] . '\'', $compilationContext);
break;
case 'null':
$compilationContext->backend->assignNull($variable, $compilationContext);
break;
case 'double':
$compilationContext->backend->assignDouble($variable, $defaultValue['value'], $compilationContext);
break;
case 'string':
$compilationContext->backend->assignString($variable, Utils::addSlashes($defaultValue['value'], true), $compilationContext);
break;
case 'array':
case 'empty-array':
$compilationContext->backend->initArray($variable, $compilationContext, null);
break;
default:
throw new CompilerException('Invalid default type: ' . $defaultValue['type'] . ' for data type: ' . $variable->getType(), $variable->getOriginal());
}
}
}
}
continue;
}
/**
* Initialize 'string' variables with default values
*/
if ($variable->getType() == 'string') {
if ($variable->getNumberUses() > 0) {
$defaultValue = $variable->getDefaultInitValue();
if (is_array($defaultValue)) {
$symbolTable->mustGrownStack(true);
$compilationContext->backend->initVar($variable, $compilationContext);
switch ($defaultValue['type']) {
case 'string':
$compilationContext->backend->assignString($variable, Utils::addSlashes($defaultValue['value'], true), $compilationContext);
break;
case 'null':
$compilationContext->backend->assignString($variable, null, $compilationContext);
break;
default:
throw new CompilerException('Invalid default type: ' . $defaultValue['type'] . ' for data type: ' . $variable->getType(), $variable->getOriginal());
}
}
}
continue;
}
/**
* Initialize 'array' variables with default values
*/
if ($variable->getType() == 'array') {
if ($variable->getNumberUses() > 0) {
$defaultValue = $variable->getDefaultInitValue();
if (is_array($defaultValue)) {
$symbolTable->mustGrownStack(true);
$compilationContext->backend->initVar($variable, $compilationContext);
switch ($defaultValue['type']) {
case 'null':
$compilationContext->backend->assignNull($variable, $compilationContext);
break;
case 'array':
case 'empty-array':
$compilationContext->backend->initArray($variable, $compilationContext, null);
break;
default:
throw new CompilerException('Invalid default type: ' . $defaultValue['type'] . ' for data type: ' . $variable->getType(), $variable->getOriginal());
}
}
}
}
}
$compilationContext->codePrinter = $oldCodePrinter;
return $codePrinter->getOutput();
}
/**
* Compiles the method
*
* @param CompilationContext $compilationContext
* @return null
* @throws CompilerException
*/
public function compile(CompilationContext $compilationContext)
{
/**
* Set the method currently being compiled
*/
$compilationContext->currentMethod = $this;
/**
* Initialize the method warm-up to null
*/
$compilationContext->methodWarmUp = null;
/**
* Assign pre-made compilation passses
*/
$localContext = $this->localContext;
$typeInference = $this->typeInference;
$callGathererPass = $this->callGathererPass;
/**
* Every method has its own symbol table
*/
$symbolTable = new SymbolTable($compilationContext);
if ($localContext) {
$symbolTable->setLocalContext($localContext);
}
/**
* Parameters has an additional extra mutation
*/
$parameters = $this->parameters;
if ($localContext) {
if (is_object($parameters)) {
foreach ($parameters->getParameters() as $parameter) {
$localContext->increaseMutations($parameter['name']);
}
}
}
/**
* Initialization of parameters happens in a fictitious external branch
*/
$branch = new Branch();
$branch->setType(Branch::TYPE_EXTERNAL);
/**
* BranchManager helps to create graphs of conditional/loop/root/jump branches
*/
$branchManager = new BranchManager();
$branchManager->addBranch($branch);
/**
* Cache Manager manages function calls, method calls and class entries caches
*/
$cacheManager = new CacheManager();
$cacheManager->setGatherer($callGathererPass);
$compilationContext->branchManager = $branchManager;
$compilationContext->cacheManager = $cacheManager;
$compilationContext->typeInference = $typeInference;
$compilationContext->symbolTable = $symbolTable;
$oldCodePrinter = $compilationContext->codePrinter;
/**
* Change the code printer to a single method instance
*/
$codePrinter = new CodePrinter();
$compilationContext->codePrinter = $codePrinter;
/**
* Set an empty function cache
*/
$compilationContext->functionCache = null;
/**
* Reset try/catch and loop counter
*/
$compilationContext->insideCycle = 0;
$compilationContext->insideTryCatch = 0;
$compilationContext->currentTryCatch = 0;
if (is_object($parameters)) {
/**
* Round 1. Create variables in parameters in the symbol table
*/
$classCastChecks = array();
foreach ($parameters->getParameters() as $parameter) {
/**
* Change dynamic variables to low level types
*/
if ($typeInference) {
if (isset($parameter['data-type'])) {
if ($parameter['data-type'] == 'variable') {
$type = $typeInference->getInferedType($parameter['name']);
if (is_string($type)) {
/* promote polymorphic parameters to low level types */
}
}
} else {
$type = $typeInference->getInferedType($parameter['name']);
if (is_string($type)) {
/* promote polymorphic parameters to low level types */
}
}
}
$symbolParam = null;
if (isset($parameter['data-type'])) {
switch ($parameter['data-type']) {
case 'object':
case 'callable':
case 'resource':
case 'variable':
$symbol = $symbolTable->addVariable($parameter['data-type'], $parameter['name'], $compilationContext);
break;
default:
$symbol = $symbolTable->addVariable($parameter['data-type'], $parameter['name'], $compilationContext);
$symbolParam = $symbolTable->addVariable('variable', $parameter['name'] . '_param', $compilationContext);
if ($parameter['data-type'] == 'string' || $parameter['data-type'] == 'array') {
$symbol->setMustInitNull(true);
}
break;
}
} else {
$symbol = $symbolTable->addVariable('variable', $parameter['name'], $compilationContext);
}
/**
* Some parameters can be read-only
*/
if (isset($parameter['const']) && $parameter['const']) {
$symbol->setReadOnly(true);
if (is_object($symbolParam)) {
$symbolParam->setReadOnly(true);
}
}
if (is_object($symbolParam)) {
/**
* Parameters are marked as 'external'
*/
$symbolParam->setIsExternal(true);
/**
* Assuming they're initialized
*/
$symbolParam->setIsInitialized(true, $compilationContext, $parameter);
/**
* Initialize auxiliar parameter zvals to null
*/
$symbolParam->setMustInitNull(true);
/**
* Increase uses
*/
$symbolParam->increaseUses();
} else {
if (isset($parameter['default'])) {
if (isset($parameter['data-type'])) {
if ($parameter['data-type'] == 'variable') {
$symbol->setMustInitNull(true);
}
} else {
$symbol->setMustInitNull(true);
}
}
}
/**
* Original node where the variable was declared
*/
$symbol->setOriginal($parameter);
/**
* Parameters are marked as 'external'
*/
$symbol->setIsExternal(true);
/**
* Assuming they're initialized
*/
$symbol->setIsInitialized(true, $compilationContext, $parameter);
/**
* Variables with class/type must be objects across the execution
*/
if (isset($parameter['cast'])) {
$symbol->setDynamicTypes('object');
$symbol->setClassTypes($compilationContext->getFullName($parameter['cast']['value']));
$classCastChecks[] = array($symbol, $parameter);
} else {
if (isset($parameter['data-type'])) {
if ($parameter['data-type'] == 'variable') {
$symbol->setDynamicTypes('undefined');
}
} else {
$symbol->setDynamicTypes('undefined');
}
}
}
}
/**
* Initialize the properties within create_object, handler code
*/
if ($this->getName() == 'zephir_init_properties') {
$codePrinter->increaseLevel();
$codePrinter->output('{');
$codePrinter->increaseLevel();
$codePrinter->output('zval *this_ptr = NULL;');
$codePrinter->output('ZEPHIR_CREATE_OBJECT(this_ptr, class_type);');
$codePrinter->decreaseLevel();
}
/**
* Compile the block of statements if any
*/
if (is_object($this->statements)) {
if ($this->hasModifier('static')) {
$compilationContext->staticContext = true;
} else {
$compilationContext->staticContext = false;
}
/**
* Compile the statements block as a 'root' branch
*/
$this->statements->compile($compilationContext, false, Branch::TYPE_ROOT);
}
/**
* Initialize default values in dynamic variables
*/
$initVarCode = "";
foreach ($symbolTable->getVariables() as $variable) {
/**
* Initialize 'dynamic' variables with default values
*/
if ($variable->getType() == 'variable') {
if ($variable->getNumberUses() > 0) {
if ($variable->getName() != 'this_ptr' && $variable->getName() != 'return_value' && $variable->getName() != 'return_value_ptr') {
$defaultValue = $variable->getDefaultInitValue();
if (is_array($defaultValue)) {
$symbolTable->mustGrownStack(true);
switch ($defaultValue['type']) {
case 'int':
case 'uint':
case 'long':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'ZVAL_LONG(' . $variable->getName() . ', ' . $defaultValue['value'] . ');' . PHP_EOL;
break;
case 'char':
case 'uchar':
if (strlen($defaultValue['value']) > 2) {
if (strlen($defaultValue['value']) > 10) {
throw new CompilerException("Invalid char literal: '" . substr($defaultValue['value'], 0, 10) . "...'", $defaultValue);
} else {
throw new CompilerException("Invalid char literal: '" . $defaultValue['value'] . "'", $defaultValue);
}
}
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'ZVAL_LONG(' . $variable->getName() . ', \'' . $defaultValue['value'] . '\');' . PHP_EOL;
break;
case 'null':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'ZVAL_NULL(' . $variable->getName() . ');' . PHP_EOL;
break;
case 'double':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'ZVAL_DOUBLE(' . $variable->getName() . ', ' . $defaultValue['value'] . ');' . PHP_EOL;
break;
case 'string':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'ZVAL_STRING(' . $variable->getName() . ', "' . Utils::addSlashes($defaultValue['value'], true) . '", 1);' . PHP_EOL;
break;
case 'array':
case 'empty-array':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'array_init(' . $variable->getName() . ');' . PHP_EOL;
break;
default:
throw new CompilerException('Invalid default type: ' . $defaultValue['type'] . ' for data type: ' . $variable->getType(), $variable->getOriginal());
}
}
}
}
continue;
}
/**
* Initialize 'string' variables with default values
*/
if ($variable->getType() == 'string') {
if ($variable->getNumberUses() > 0) {
$defaultValue = $variable->getDefaultInitValue();
if (is_array($defaultValue)) {
$symbolTable->mustGrownStack(true);
switch ($defaultValue['type']) {
case 'string':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'ZVAL_STRING(' . $variable->getName() . ', "' . Utils::addSlashes($defaultValue['value'], true) . '", 1);' . PHP_EOL;
break;
case 'null':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'ZVAL_EMPTY_STRING(' . $variable->getName() . ');' . PHP_EOL;
break;
default:
throw new CompilerException('Invalid default type: ' . $defaultValue['type'] . ' for data type: ' . $variable->getType(), $variable->getOriginal());
}
}
}
continue;
}
/**
* Initialize 'array' variables with default values
*/
if ($variable->getType() == 'array') {
if ($variable->getNumberUses() > 0) {
$defaultValue = $variable->getDefaultInitValue();
if (is_array($defaultValue)) {
$symbolTable->mustGrownStack(true);
switch ($defaultValue['type']) {
case 'null':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'ZVAL_NULL(' . $variable->getName() . ');' . PHP_EOL;
break;
case 'array':
case 'empty-array':
$initVarCode .= "\t" . 'ZEPHIR_INIT_VAR(' . $variable->getName() . ');' . PHP_EOL;
$initVarCode .= "\t" . 'array_init(' . $variable->getName() . ');' . PHP_EOL;
break;
default:
throw new CompilerException('Invalid default type: ' . $defaultValue['type'] . ' for data type: ' . $variable->getType(), $variable->getOriginal());
}
}
}
}
}
/**
* Fetch parameters from vm-top
*/
$initCode = "";
$code = "";
if (is_object($parameters)) {
/**
* Round 2. Fetch the parameters in the method
*/
$params = array();
$requiredParams = array();
$optionalParams = array();
$numberRequiredParams = 0;
$numberOptionalParams = 0;
foreach ($parameters->getParameters() as $parameter) {
if (isset($parameter['data-type'])) {
$dataType = $parameter['data-type'];
} else {
$dataType = 'variable';
}
switch ($dataType) {
case 'object':
case 'callable':
case 'resource':
case 'variable':
if (!$this->isInternal()) {
$params[] = '&' . $parameter['name'];
} else {
$params[] = $parameter['name'];
}
break;
default:
if (!$this->isInternal()) {
$params[] = '&' . $parameter['name'] . '_param';
} else {
$params[] = $parameter['name'] . '_param';
}
break;
}
if (isset($parameter['default'])) {
$optionalParams[] = $parameter;
$numberOptionalParams++;
} else {
$requiredParams[] = $parameter;
$numberRequiredParams++;
}
}
/**
* Pass the write detector to the method statement block to check if the parameter
* variable is modified so as do the proper separation
*/
$parametersToSeparate = array();
if (is_object($this->statements)) {
/**
* If local context is not available
*/
if (!$localContext) {
$writeDetector = new WriteDetector();
}
foreach ($parameters->getParameters() as $parameter) {
if (isset($parameter['data-type'])) {
$dataType = $parameter['data-type'];
} else {
$dataType = 'variable';
}
switch ($dataType) {
case 'variable':
case 'string':
case 'array':
case 'resource':
case 'object':
case 'callable':
$name = $parameter['name'];
if (!$localContext) {
if ($writeDetector->detect($name, $this->statements->getStatements())) {
$parametersToSeparate[$name] = true;
}
} else {
if ($localContext->getNumberOfMutations($name) > 1) {
$parametersToSeparate[$name] = true;
}
}
break;
}
}
}
/**
* Initialize required parameters
*/
foreach ($requiredParams as $parameter) {
if (isset($parameter['mandatory'])) {
$mandatory = $parameter['mandatory'];
} else {
$mandatory = 0;
}
if (isset($parameter['data-type'])) {
$dataType = $parameter['data-type'];
} else {
$dataType = 'variable';
}
if ($dataType != 'variable') {
/**
* Assign value from zval to low level type
*/
if ($mandatory) {
$initCode .= $this->checkStrictType($parameter, $compilationContext);
} else {
$initCode .= $this->assignZvalValue($parameter, $compilationContext);
}
}
switch ($dataType) {
case 'variable':
case 'resource':
case 'object':
case 'callable':
if (isset($parametersToSeparate[$parameter['name']])) {
$symbolTable->mustGrownStack(true);
$initCode .= "\t" . "ZEPHIR_SEPARATE_PARAM(" . $parameter['name'] . ");" . PHP_EOL;
}
break;
}
}
/**
* Initialize optional parameters
*/
foreach ($optionalParams as $parameter) {
if (isset($parameter['mandatory'])) {
$mandatory = $parameter['mandatory'];
} else {
$mandatory = 0;
}
if (isset($parameter['data-type'])) {
$dataType = $parameter['data-type'];
} else {
$dataType = 'variable';
}
switch ($dataType) {
case 'object':
case 'callable':
case 'resource':
case 'variable':
$name = $parameter['name'];
break;
default:
$name = $parameter['name'] . '_param';
break;
}
/**
* Assign the default value according to the variable's type
*/
$initCode .= "\t" . 'if (!' . $name . ') {' . PHP_EOL;
$initCode .= $this->assignDefaultValue($parameter, $compilationContext);
if (isset($parametersToSeparate[$name]) || $dataType != 'variable') {
$initCode .= "\t" . '} else {' . PHP_EOL;
if (isset($parametersToSeparate[$name])) {
$initCode .= "\t\t" . "ZEPHIR_SEPARATE_PARAM(" . $name . ");" . PHP_EOL;
} else {
if ($mandatory) {
$initCode .= $this->checkStrictType($parameter, $compilationContext, $mandatory);
} else {
$initCode .= "\t" . $this->assignZvalValue($parameter, $compilationContext);
}
}
}
$initCode .= "\t" . '}' . PHP_EOL;
}
/**
* Fetch the parameters to zval pointers
*/
$codePrinter->preOutputBlankLine();
if (!$this->isInternal()) {
$compilationContext->headersManager->add('kernel/memory');
if ($symbolTable->getMustGrownStack()) {
$code .= "\t" . 'zephir_fetch_params(1, ' . $numberRequiredParams . ', ' . $numberOptionalParams . ', ' . join(', ', $params) . ');' . PHP_EOL;
} else {
$code .= "\t" . 'zephir_fetch_params(0, ' . $numberRequiredParams . ', ' . $numberOptionalParams . ', ' . join(', ', $params) . ');' . PHP_EOL;
}
} else {
foreach ($params as $param) {
$code .= "\t" . $param . ' = ' . $param . '_ext;' . PHP_EOL;
}
}
$code .= PHP_EOL;
}
$code .= $initCode . $initVarCode;
$codePrinter->preOutput($code);
/**
* Fetch used superglobals
*/
foreach ($symbolTable->getVariables() as $name => $variable) {
if ($symbolTable->isSuperGlobal($name)) {
$codePrinter->preOutput("\t" . 'zephir_get_global(&' . $name . ', SS("' . $name . '") TSRMLS_CC);');
}
}
/**
* Grow the stack if needed
*/
if ($symbolTable->getMustGrownStack()) {
$compilationContext->headersManager->add('kernel/memory');
$codePrinter->preOutput("\t" . 'ZEPHIR_MM_GROW();');
}
/**
* Check if there are unused variables
*/
$usedVariables = array();
$completeName = $compilationContext->classDefinition->getCompleteName();
foreach ($symbolTable->getVariables() as $variable) {
if ($variable->getNumberUses() <= 0) {
if ($variable->isExternal() == false) {
$compilationContext->logger->warning('Variable "' . $variable->getName() . '" declared but not used in ' . $completeName . '::' . $this->getName(), "unused-variable", $variable->getOriginal());
continue;
}
$compilationContext->logger->warning('Variable "' . $variable->getName() . '" declared but not used in ' . $completeName . '::' . $this->getName(), "unused-variable-external", $variable->getOriginal());
}
if ($variable->getName() != 'this_ptr' && $variable->getName() != 'return_value' && $variable->getName() != 'return_value_ptr') {
$type = $variable->getType();
if (!isset($usedVariables[$type])) {
$usedVariables[$type] = array();
}
$usedVariables[$type][] = $variable;
}
}
/**
* Check if there are assigned but not used variables
* Warn whenever a variable is unused aside from its declaration.
*/
foreach ($symbolTable->getVariables() as $variable) {
if ($variable->isExternal() == true || $variable->isTemporal()) {
continue;
}
if ($variable->getName() == 'this_ptr' || $variable->getName() == 'return_value' || $variable->getName() == 'return_value_ptr' || $variable->getName() == 'ZEPHIR_LAST_CALL_STATUS') {
continue;
}
if (!$variable->isUsed()) {
$node = $variable->getLastUsedNode();
if (is_array($node)) {
$compilationContext->logger->warning('Variable "' . $variable->getName() . '" assigned but not used in ' . $completeName . '::' . $this->getName(), "unused-variable", $node);
} else {
$compilationContext->logger->warning('Variable "' . $variable->getName() . '" assigned but not used in ' . $completeName . '::' . $this->getName(), "unused-variable", $variable->getOriginal());
}
}
}
if (count($usedVariables)) {
$codePrinter->preOutputBlankLine();
}
/**
* Generate the variable definition for variables used
*/
foreach ($usedVariables as $type => $variables) {
$pointer = null;
switch ($type) {
case 'int':
$code = 'int ';
break;
case 'uint':
$code = 'unsigned int ';
break;
case 'char':
$code = 'char ';
break;
case 'uchar':
$code = 'unsigned char ';
break;
case 'long':
$code = 'long ';
break;
case 'ulong':
$code = 'unsigned long ';
break;
case 'bool':
$code = 'zend_bool ';
break;
case 'double':
$code = 'double ';
break;
case 'string':
case 'variable':
case 'array':
case 'null':
$pointer = '*';
$code = 'zval ';
break;
case 'HashTable':
$pointer = '*';
$code = 'HashTable ';
break;
case 'HashPosition':
$code = 'HashPosition ';
break;
case 'zend_class_entry':
$pointer = '*';
$code = 'zend_class_entry ';
break;
case 'zend_function':
$pointer = '*';
$code = 'zend_function ';
break;
case 'zend_object_iterator':
$pointer = '*';
$code = 'zend_object_iterator ';
break;
case 'zend_property_info':
$pointer = '*';
$code = 'zend_property_info ';
break;
case 'zephir_fcall_cache_entry':
$pointer = '*';
$code = 'zephir_fcall_cache_entry ';
break;
case 'static_zephir_fcall_cache_entry':
$pointer = '*';
$code = 'zephir_nts_static zephir_fcall_cache_entry ';
break;
case 'static_zend_class_entry':
$pointer = '*';
$code = 'zephir_nts_static zend_class_entry ';
break;
case 'zephir_ce_guard':
$code = 'zephir_nts_static zend_bool ';
break;
default:
throw new CompilerException("Unsupported type in declare: " . $type);
}
$groupVariables = array();
$defaultValues = array();
/**
* @var $variables Variable[]
*/
foreach ($variables as $variable) {
$isComplex = $type == 'variable' || $type == 'string' || $type == 'array' || $type == 'resource' || $type == 'callable' || $type == 'object';
if ($isComplex && $variable->mustInitNull()) {
if ($variable->isLocalOnly()) {
$groupVariables[] = $variable->getName() . ' = zval_used_for_init';
} else {
if ($variable->isDoublePointer()) {
$groupVariables[] = $pointer . $pointer . $variable->getName() . ' = NULL';
} else {
$groupVariables[] = $pointer . $variable->getName() . ' = NULL';
}
}
continue;
}
if ($variable->isLocalOnly()) {
$groupVariables[] = $variable->getName();
continue;
}
if ($variable->isDoublePointer()) {
if ($variable->mustInitNull()) {
$groupVariables[] = $pointer . $pointer . $variable->getName() . ' = NULL';
} else {
$groupVariables[] = $pointer . $pointer . $variable->getName();
}
continue;
}
$defaultValue = $variable->getDefaultInitValue();
if ($defaultValue !== null) {
switch ($type) {
case 'variable':
case 'string':
case 'array':
case 'resource':
case 'callable':
case 'object':
$groupVariables[] = $pointer . $variable->getName();
break;
case 'char':
if (strlen($defaultValue) > 4) {
if (strlen($defaultValue) > 10) {
throw new CompilerException("Invalid char literal: '" . substr($defaultValue, 0, 10) . "...'", $variable->getOriginal());
} else {
throw new CompilerException("Invalid char literal: '" . $defaultValue . "'", $variable->getOriginal());
}
}
/* no break */
/* no break */
default:
$groupVariables[] = $pointer . $variable->getName() . ' = ' . $defaultValue;
break;
}
continue;
}
if ($variable->mustInitNull() && $pointer) {
$groupVariables[] = $pointer . $variable->getName() . ' = NULL';
continue;
}
$groupVariables[] = $pointer . $variable->getName();
}
$codePrinter->preOutput("\t" . $code . join(', ', $groupVariables) . ';');
}
/**
* Finalize the method compilation
*/
if (is_object($this->statements)) {
/**
* If the last statement is not a 'return' or 'throw' we need to
* restore the memory stack if needed
*/
$lastType = $this->statements->getLastStatementType();
if ($lastType != 'return' && $lastType != 'throw' && !$this->hasChildReturnStatementType($this->statements->getLastStatement())) {
if ($symbolTable->getMustGrownStack()) {
$compilationContext->headersManager->add('kernel/memory');
$codePrinter->output("\t" . 'ZEPHIR_MM_RESTORE();');
}
/**
* If a method has return-type hints we need to ensure the last statement is a 'return' statement
*/
if ($this->hasReturnTypes()) {
throw new CompilerException('Reached end of the method without returning a valid type specified in the return-type hints', $this->expression['return-type']);
}
}
}
if ($this->getName() == 'zephir_init_properties') {
$codePrinter->increaseLevel();
$codePrinter->output('return Z_OBJVAL_P(this_ptr);');
$codePrinter->decreaseLevel();
$codePrinter->output('}');
$codePrinter->decreaseLevel();
}
/**
* Remove macros that grow/restore the memory frame stack if it wasn't used
*/
$code = $this->removeMemoryStackReferences($symbolTable, $codePrinter->getOutput());
/**
* Restore the compilation context
*/
$oldCodePrinter->output($code);
$compilationContext->codePrinter = $oldCodePrinter;
$compilationContext->branchManager = null;
$compilationContext->cacheManager = null;
$compilationContext->typeInference = null;
$codePrinter->clear();
return null;
}
public function genFcallCode()
{
$codePrinter = new CodePrinter();
$codePrinter->output('#ifndef ZEPHIR_KERNEL_FCALL_INTERNAL_H');
$codePrinter->output('#define ZEPHIR_KERNEL_FCALL_INTERNAL_H');
$codePrinter->increaseLevel();
ksort($this->requiredMacros);
foreach ($this->requiredMacros as $name => $info) {
list($scope, $mode, $paramCount) = $info;
$paramsStr = '';
$retParam = '';
$retValueUsed = '0';
$params = array();
$zvals = array();
$initStatements = array();
$postStatements = array();
for ($i = 0; $i < $paramCount; ++$i) {
$params[] = 'p' . $i;
}
if ($paramCount) {
$paramsStr = ', ' . implode(', ', $params);
}
if ($mode == 'CALL_INTERNAL_METHOD_P') {
$retValueUsed = '1';
$retParam = 'return_value_ptr';
$initStatements[] = 'ZEPHIR_INIT_NVAR(*(return_value_ptr)); \\';
}
$objParam = $scope ? 'scope_ce, ' : 'object, ';
$macroName = $name . '(' . ($retParam ? $retParam . ', ' : '') . $objParam . 'method' . $paramsStr . ')';
$codePrinter->output('#define ' . $macroName . ' \\');
if (!$retParam) {
$retParam = 'return_value';
}
$codePrinter->increaseLevel();
$codePrinter->output('do { \\');
$codePrinter->increaseLevel();
if ($mode == 'CALL_INTERNAL_METHOD_NORETURN_P') {
$codePrinter->output('zval *rv = NULL; \\');
$codePrinter->output('zval **rvp = &rv; \\');
$codePrinter->output('ALLOC_INIT_ZVAL(rv); \\');
$retParam = 'rvp';
}
$codePrinter->output('ZEPHIR_BACKUP_SCOPE() \\');
$codePrinter->output('ZEPHIR_BACKUP_THIS_PTR() \\');
if (!$scope) {
$codePrinter->output('ZEPHIR_SET_THIS(object); \\');
$codePrinter->output('ZEPHIR_SET_SCOPE((Z_TYPE_P(object) == IS_OBJECT ? Z_OBJCE_P(object) : NULL), (Z_TYPE_P(object) == IS_OBJECT ? Z_OBJCE_P(object) : NULL)); \\');
} else {
$codePrinter->output('ZEPHIR_SET_THIS(NULL); \\');
$codePrinter->output('ZEPHIR_SET_SCOPE(scope_ce, scope_ce); \\');
}
/* Create new zval's for parameters */
for ($i = 0; $i < $paramCount; ++$i) {
//$zv = '_' . $params[$i];
//$zvals[] = $zv;
//$initStatements[] = 'ALLOC_ZVAL(' . $zv . '); \\';
//$initStatements[] = 'INIT_PZVAL_COPY(' . $zv . ', ' . $params[$i] . '); \\';
//$postStatements[] = 'zval_ptr_dtor(&' . $zv . '); \\';
$zv = $params[$i];
$zvals[] = $zv;
$initStatements[] = 'Z_ADDREF_P(' . $zv . '); \\';
$postStatements[] = 'Z_DELREF_P(' . $zv . '); \\';
}
if ($i) {
//$codePrinter->output('zval *' . implode(', *', $zvals) . '; \\');
}
foreach ($initStatements as $statement) {
$codePrinter->output($statement);
}
$zvalStr = $i ? ', ' . implode(', ', $zvals) : '';
$retExpr = '';
if ($retParam) {
if ($retParam == 'return_value') {
$retExpr = ', return_value, return_value_ptr';
} else {
$retExpr = ', *' . $retParam . ', ' . $retParam;
}
}
$codePrinter->output('method(0' . $retExpr . ', ' . ($scope ? 'NULL, ' : $objParam) . $retValueUsed . $zvalStr . ' TSRMLS_CC); \\');
if ($mode == 'CALL_INTERNAL_METHOD_NORETURN_P') {
$postStatements[] = 'zval_ptr_dtor(rvp); \\';
}
foreach ($postStatements as $statement) {
$codePrinter->output($statement);
}
$codePrinter->output('ZEPHIR_LAST_CALL_STATUS = EG(exception) ? FAILURE : SUCCESS; \\');
$codePrinter->output('ZEPHIR_RESTORE_THIS_PTR(); \\');
$codePrinter->output('ZEPHIR_RESTORE_SCOPE(); \\');
$codePrinter->decreaseLevel();
$codePrinter->output('} while (0)');
$codePrinter->decreaseLevel();
$codePrinter->output('');
}
$codePrinter->decreaseLevel();
$codePrinter->output("#endif");
Utils::checkAndWriteIfNeeded($codePrinter->getOutput(), 'ext/kernel/fcall_internal.h');
}
