/**
* Take a pass over all functions verifying various
* states.
*
* @return null
*/
public static function analyzeFunctions(CodeBase $code_base)
{
$function_count = count($code_base->getFunctionAndMethodSet());
$i = 0;
foreach ($code_base->getFunctionAndMethodSet() as $function_or_method) {
CLI::progress('method', ++$i / $function_count);
if ($function_or_method->isInternal()) {
continue;
}
DuplicateFunctionAnalyzer::analyzeDuplicateFunction($code_base, $function_or_method);
ParameterTypesAnalyzer::analyzeParameterTypes($code_base, $function_or_method);
// Let any plugins analyze the methods or functions
if ($function_or_method instanceof Func) {
ConfigPluginSet::instance()->analyzeFunction($code_base, $function_or_method);
} else {
if ($function_or_method instanceof Method) {
ConfigPluginSet::instance()->analyzeMethod($code_base, $function_or_method);
}
}
}
}
/**
* This method should be called after hydration
*
* @return void
*/
public final function analyze(CodeBase $code_base)
{
if ($this->isInternal()) {
return;
}
// Make sure the parent classes exist
ParentClassExistsAnalyzer::analyzeParentClassExists($code_base, $this);
DuplicateClassAnalyzer::analyzeDuplicateClass($code_base, $this);
ParentConstructorCalledAnalyzer::analyzeParentConstructorCalled($code_base, $this);
PropertyTypesAnalyzer::analyzePropertyTypes($code_base, $this);
// Analyze this class to make sure that we don't have conflicting
// types between similar inherited methods.
CompositionAnalyzer::analyzeComposition($code_base, $this);
// Let any configured plugins analyze the class
ConfigPluginSet::instance()->analyzeClass($code_base, $this);
}
/**
* For non-special nodes, we propagate the context and scope
* from the parent, through the children and return the
* modified scope
*
* │
* ▼
* ┌──●
* │
* ●──●──●
* │
* ●──┘
* │
* ▼
*
* @param Node $node
* An AST node we'd like to determine the UnionType
* for
*
* @return Context
* The updated context after visiting the node
*/
public function visit(Node $node) : Context
{
$context = $this->context->withLineNumberStart($node->lineno ?? 0);
// Visit the given node populating the code base
// with anything we learn and get a new context
// indicating the state of the world within the
// given node
$context = (new PreOrderAnalysisVisitor($this->code_base, $context))($node);
assert(!empty($context), 'Context cannot be null');
// With a context that is inside of the node passed
// to this method, we analyze all children of the
// node.
foreach ($node->children ?? [] as $child_node) {
// Skip any non Node children or boring nodes
// that are too deep.
if (!$child_node instanceof Node || !Analysis::shouldVisit($child_node)) {
$context->withLineNumberStart($child_node->lineno ?? 0);
continue;
}
// Step into each child node and get an
// updated context for the node
$context = (new BlockAnalysisVisitor($this->code_base, $context, $node, $this->depth + 1))($child_node);
}
// Now that we know all about our context (like what
// 'self' means), we can analyze statements like
// assignments and method calls.
$context = (new PostOrderAnalysisVisitor($this->code_base, $context->withLineNumberStart($node->lineno ?? 0), $this->parent_node))($node);
// Let any configured plugins analyze the node
ConfigPluginSet::instance()->analyzeNode($this->code_base, $context, $node, $this->parent_node);
return $context;
}
/**
* This method should be called after hydration
*
* @return void
*/
protected function analyzeOnce(CodeBase $code_base)
{
if ($this->isInternal()) {
return;
}
// Analyze this class to make sure that
CompositionAnalyzer::analyzeComposition($code_base, $this);
// Make sure the parent classes exist
ParentClassExistsAnalyzer::analyzeParentClassExists($code_base, $this);
DuplicateClassAnalyzer::analyzeDuplicateClass($code_base, $this);
ParentConstructorCalledAnalyzer::analyzeParentConstructorCalled($code_base, $this);
PropertyTypesAnalyzer::analyzePropertyTypes($code_base, $this);
// Let any configured plugins analyze the class
ConfigPluginSet::instance()->analyzeClass($code_base, $this);
}