public function parse(\PHPParser_Node_Stmt_Function $node)
{
$function = new GlobalFunction(implode("\\", $node->namespacedName->parts));
$function->setImportedNamespaces($this->importedNamespaces);
$function->setAstNode($node);
$function->setReturnByRef($node->byRef);
$function->setVariableParameters(false !== strpos($node->getDocComment(), '@jms-variable-parameters'));
foreach ($this->paramParser->parse($node->params, 'Scrutinizer\\PhpAnalyzer\\Model\\FunctionParameter') as $param) {
$function->addParameter($param);
}
return $function;
}
public function persist(GlobalFunction $function, $packageVersionId)
{
$this->insertStmt->bindValue(1, $this->phpType->convertToDatabaseValue($function->getReturnType(), $this->platform));
$this->insertStmt->bindValue(2, $function->getName());
$this->insertStmt->bindValue(3, $function->isReturnByRef() ? 1 : 0, \PDO::PARAM_INT);
$this->insertStmt->bindValue(4, $packageVersionId, \PDO::PARAM_INT);
$this->insertStmt->bindValue(5, $function->hasVariableParameters() ? 1 : 0, \PDO::PARAM_INT);
$this->insertStmt->execute();
$functionId = $this->con->lastInsertId();
$this->functionIdRef->setValue($function, $functionId);
foreach ($function->getParameters() as $param) {
$this->paramPersister->persist($param, $function);
}
foreach ($function->getInCallSites() as $callSite) {
$this->callSitePersister->persist($callSite);
}
foreach ($function->getOutCallSites() as $callSite) {
$this->callSitePersister->persist($callSite);
}
}
public function registerFunction(GlobalFunction $function)
{
$this->functions[strtolower($function->getName())] = $function;
}
/**
* @group definingExpr
*/
public function testDefiningExprIsCheckedForVariables()
{
$this->registry->registerFunction($function = new GlobalFunction('is_array'));
$function->setReturnType($this->registry->getNativeType('boolean'));
$ast = $this->analyzeAst('TypeInference/defining_expr_for_variable.php');
$this->assertTypedAst($ast, 'defining_expr_for_variable');
}
public function addFunction(GlobalFunction $function)
{
$function->setPackageVersion($this);
$this->functions->set($function->getName(), $function);
}
private function createFunction($name, $returnType = 'all')
{
$func = new GlobalFunction($name);
$func->setReturnType($this->registry->resolveType($returnType));
return $func;
}
public function getPreciserFunctionReturnTypeKnowingArguments(GlobalFunction $function, array $argValues, array $argTypes)
{
switch ($function->getName()) {
case 'array_change_key_case':
return $this->casePreserveIncomingArray($argTypes, 'false');
case 'array_chunk':
case 'array_combine':
// TODO
break;
case 'array_diff_assoc':
case 'array_diff_key':
case 'array_diff_uassoc':
case 'array_diff_ukey':
case 'array_diff':
return $this->casePreserveIncomingArray($argTypes);
case 'array_fill_keys':
case 'array_fill':
case 'array_filter':
case 'array_flip':
// TODO
break;
case 'array_intersect_assoc':
case 'array_intersect_key':
case 'array_intersect_uassoc':
case 'array_intersect_ukey':
case 'array_intersect':
return $this->casePreserveIncomingArray($argTypes);
case 'array_keys':
return $this->caseArrayKeys($argTypes);
case 'array_merge_recursive':
case 'array_replace_recursive':
case 'array_merge':
case 'array_replace':
return $this->caseArrayMergeReplace($argTypes, $function->getName());
case 'array_pad':
return $this->caseArrayPad($argTypes);
case 'array_pop':
return $this->caseArrayPop($argTypes);
case 'array_rand':
// TODO
break;
case 'array_reverse':
return $this->casePreserveIncomingArray($argTypes);
case 'array_search':
return $this->caseArraySearch($argTypes);
case 'array_shift':
return $this->caseElementTypeOrElse($argTypes, 'null');
case 'array_slice':
case 'array_splice':
return $this->casePreserveIncomingArray($argTypes);
case 'array_udiff_assoc':
case 'array_udiff_uassoc':
case 'array_udiff':
case 'array_uintersect_assoc':
case 'array_uintersect_uassoc':
case 'array_uintersect':
return $this->casePreserveIncomingArray($argTypes);
case 'array_unique':
return $this->casePreserveIncomingArray($argTypes);
case 'array_values':
return $this->caseArrayValues($argTypes);
case 'compact':
// TODO
break;
case 'current':
case 'end':
case 'next':
case 'pos':
case 'prev':
case 'reset':
return $this->caseElementTypeOrElse($argTypes, 'false');
case 'each':
case 'extract':
case 'key':
case 'range':
// TODO
break;
}
return null;
}
public function addFunction(GlobalFunction $function)
{
$this->functions[$function->getName()] = $function;
}
public function getPreciserFunctionReturnTypeKnowingArguments(GlobalFunction $function, array $argValues, array $argTypes)
{
switch ($function->getName()) {
case 'version_compare':
switch (count($argTypes)) {
case 2:
return $this->registry->getNativeType('integer');
case 3:
return $this->registry->getNativeType('boolean');
default:
return $this->registry->resolveType('integer|boolean');
}
case 'unserialize':
return $this->registry->getNativeType('unknown_checked');
case 'var_export':
if (count($argValues) !== 2) {
return null;
}
if (\Scrutinizer\PhpAnalyzer\PhpParser\NodeUtil::isBoolean($argValues[1]) && \Scrutinizer\PhpAnalyzer\PhpParser\NodeUtil::getBooleanValue($argValues[1]) === true) {
return $this->registry->getNativeType('string');
}
return null;
case 'min':
case 'max':
switch (count($argTypes)) {
case 0:
return null;
case 1:
if ($argTypes[0]->isArrayType()) {
return $argTypes[0]->getElementType();
}
return null;
default:
// TODO: We could make this a bit smarter as some types are always considered
// greater/smaller than other types.
// See http://de1.php.net/manual/en/language.operators.comparison.php
return $this->registry->createUnionType($argTypes);
}
case 'str_replace':
case 'preg_filter':
case 'preg_replace':
case 'preg_replace_callback':
if (isset($argTypes[2])) {
if ($argTypes[2]->isUnknownType()) {
return $this->registry->getNativeType('unknown');
}
if ($argTypes[2]->isArrayType()) {
return $this->registry->resolveType('array<string>');
}
$nullableScalar = $this->registry->createNullableType($this->registry->getNativeType('scalar'));
if ($argTypes[2]->isSubtypeOf($nullableScalar)) {
return $this->registry->getNativeType('string');
}
}
return null;
// Use the non-restricted type if we don't know.
// Use the non-restricted type if we don't know.
default:
return null;
}
}
