PHPSA\Definition\FunctionDefinition

Complexity

Total Complexity

13

Size/Duplication

Total Lines	128
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	9

Test Coverage

Coverage

81.25%

Importance

Changes	2
Bugs	0	Features	0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	1
C	compile()	0	50	8
A	getFilepath()	0	4	1
A	setFilepath()	0	4	1
A	getParams()	0	4	1
A	getCFG()	0	4	1

<?php
/**
 * @author Patsura Dmitry https://github.com/ovr <talk@dmtry.me>
 */

namespace PHPSA\Definition;

use PHPSA\CompiledExpression;
use PHPSA\Context;
use PHPSA\Compiler\Parameter;
use PHPSA\Compiler\Types;
use PhpParser\Node;
use PHPSA\Compiler\Event;
use PHPSA\ControlFlow\ControlFlowGraph;

/**
 * Function Definition
 *
 * @package PHPSA\Definition
 */
class FunctionDefinition extends ParentDefinition
{
    /**
     * @todo Use Finder
     *
     * @var string
     */
    protected $filepath;

    /**
     * @var Node\Stmt\Function_
     */
    protected $statement;

    /**
     * @var \PHPSA\ControlFlow\ControlFlowGraph
     */
    protected $cfg;

    /**
     * @var int
     */
    protected $returnTypes = CompiledExpression::MIXED;

    /**
     * @var array
     */
    protected $possibleReturnTypes = [];

    /**
     * @param string $name
     * @param Node\Stmt\Function_ $statement
     */
    public function __construct($name, Node\Stmt\Function_ $statement)
    {
        $this->name = $name;
        $this->statement = $statement;
    }

    /**
     * Compile function to check it
     *
     * @param Context $context
     * @return bool
     */
    public function compile(Context $context)
    {
        if ($this->compiled) {
            return true;
        }

        $this->cfg = new ControlFlowGraph(
            $this->statement,
            $context
        );

        $context->setFilepath($this->filepath);
        $this->compiled = true;

        $context->scopePointer = $this->getPointer();
        $context->setScope(null);

        $context->getEventManager()->fire(
            Event\StatementBeforeCompile::EVENT_NAME,
            new Event\StatementBeforeCompile(
                $this->statement,
                $context
            )
        );

        if (count($this->statement->params) > 0) {
            /** @var  Node\Param $parameter */
            foreach ($this->statement->params as $parameter) {
                $type = CompiledExpression::UNKNOWN;

                if ($parameter->type) {
                    if (is_string($parameter->type)) {
                        $type = Types::getType($parameter->type);
                    } elseif ($parameter->type instanceof Node\Name) {
                        $type = CompiledExpression::OBJECT;
                    }
                }

                $context->addVariable(
                    new Parameter($parameter->name, null, $type, $parameter->byRef)
                );
            }
        }

        foreach ($this->statement->stmts as $st) {
            \PHPSA\nodeVisitorFactory($st, $context);
        }

        return true;
    }

    /**
     * @return string
     */
    public function getFilepath()
    {
        return $this->filepath;
    }

    /**
     * @param string $filepath
     */
    public function setFilepath($filepath)
    {
        $this->filepath = $filepath;
    }

    /**
    * @return Node\Param[]
    */
    public function getParams()
    {
        return $this->statement->params;
    }

    /**
     * @return \PHPSA\ControlFlow\ControlFlowGraph
     */
    public function getCFG()
    {
        return $this->cfg;
    }
}