public static fromNode ( |
||
$context | ||
$code_base | ||
$node | ast\Node | |
리턴 | A parameter built from a node |
/** * @return Parameter[] * A list of parameters from an AST node. * * @see \Phan\Deprecated\Pass1::node_paramlist * Formerly `function node_paramlist` */ public static function listFromNode(Context $context, CodeBase $code_base, Node $node) : array { assert($node instanceof Node, "node was not an \\ast\\Node"); $parameter_list = []; $is_optional_seen = false; foreach ($node->children ?? [] as $i => $child_node) { $parameter = Parameter::fromNode($context, $code_base, $child_node); if (!$parameter->isOptional() && $is_optional_seen) { Issue::maybeEmit($code_base, $context, Issue::ParamReqAfterOpt, $node->lineno ?? 0); } elseif ($parameter->isOptional() && !$is_optional_seen && $parameter->getVariadicElementUnionType()->isEmpty()) { $is_optional_seen = true; } $parameter_list[] = $parameter; } return $parameter_list; }
/** * @return Parameter[] * A list of parameters from an AST node. * * @see \Phan\Deprecated\Pass1::node_paramlist * Formerly `function node_paramlist` */ public static function listFromNode(Context $context, CodeBase $code_base, Node $node) : array { assert($node instanceof Node, "node was not an \\ast\\Node"); $parameter_list = []; $is_optional_seen = false; foreach ($node->children ?? [] as $i => $child_node) { $parameter = Parameter::fromNode($context, $code_base, $child_node); if (!$parameter->isOptional() && $is_optional_seen) { Log::err(Log::EPARAM, "required arg follows optional", $context->getFile(), $node->lineno ?? 0); } else { if ($parameter->isOptional() && !$is_optional_seen && $parameter->getUnionType()->isEmpty()) { $is_optional_seen = true; } } $parameter_list[] = $parameter; } return $parameter_list; }
/** * Visit a node with kind `\ast\AST_CLOSURE` * * @param Node $node * A node to parse * * @return Context * A new or an unchanged context resulting from * parsing the node */ public function visitClosure(Decl $node) : Context { $closure_fqsen = FullyQualifiedFunctionName::fromClosureInContext($this->context->withLineNumberStart($node->lineno ?? 0)); // If we have a 'this' variable in our current scope, // pass it down into the closure $context = $this->context->withScope(new Scope()); if ($this->context->getScope()->hasVariableWithName('this')) { $context->addScopeVariable($this->context->getScope()->getVariableWithName('this')); } $method = Method::fromNode($context, $this->code_base, $node); // Override the FQSEN with the found alternate ID $method->setFQSEN($closure_fqsen); // Make the closure reachable by FQSEN from anywhere $this->code_base->addMethod($method); if (!empty($node->children['uses']) && $node->children['uses']->kind == \ast\AST_CLOSURE_USES) { $uses = $node->children['uses']; foreach ($uses->children as $use) { if ($use->kind != \ast\AST_CLOSURE_VAR) { Issue::emit(Issue::VariableUseClause, $this->context->getFile(), $node->lineno ?? 0); continue; } $variable_name = (new ContextNode($this->code_base, $this->context, $use->children['name']))->getVariableName(); if (empty($variable_name)) { continue; } $variable = null; // Check to see if the variable exists in this scope if (!$this->context->getScope()->hasVariableWithName($variable_name)) { // If this is not pass-by-reference variable we // have a problem if (!($use->flags & \ast\flags\PARAM_REF)) { Issue::emit(Issue::UndeclaredVariable, $this->context->getFile(), $node->lineno ?? 0, $variable_name); continue; } else { // If the variable doesn't exist, but its // a pass-by-reference variable, we can // just create it $variable = Variable::fromNodeInContext($use, $this->context, $this->code_base, false); } } else { $variable = $this->context->getScope()->getVariableWithName($variable_name); // If this isn't a pass-by-reference variable, we // clone the variable so state within this scope // doesn't update the outer scope if (!($use->flags & \ast\flags\PARAM_REF)) { $variable = clone $variable; } } // Pass the variable into a new scope $context = $context->withScopeVariable($variable); } } // Add all parameters to the scope if (!empty($node->children['params']) && $node->children['params']->kind == \ast\AST_PARAM_LIST) { $params = $node->children['params']; foreach ($params->children as $param) { // Read the parameter $parameter = Parameter::fromNode($this->context, $this->code_base, $param); // Add it to the scope $context = $context->withScopeVariable($parameter); } } return $context->withClosureFQSEN($closure_fqsen); }