PDepend\Source\AST\ASTCompilationUnit::getId PHP Method

    public function getId()
    {
        return $this->id;
    }

 /**
  * Visits a file node.
  *
  * @param  \PDepend\Source\AST\ASTCompilationUnit $compilationUnit
  * @return void
  */
 public function visitCompilationUnit(ASTCompilationUnit $compilationUnit)
 {
     // Skip for dummy files
     if ($compilationUnit->getFileName() === null) {
         return;
     }
     // Check for initial file
     $id = $compilationUnit->getId();
     if (isset($this->metrics[$id])) {
         return;
     }
     $this->fireStartFile($compilationUnit);
     if ($this->restoreFromCache($compilationUnit)) {
         $this->updateProjectMetrics($id);
         return $this->fireEndFile($compilationUnit);
     }
     list($cloc, $eloc, $lloc) = $this->linesOfCode($compilationUnit->getTokens());
     $loc = $compilationUnit->getEndLine();
     $ncloc = $loc - $cloc;
     $this->metrics[$id] = array(self::M_LINES_OF_CODE => $loc, self::M_COMMENT_LINES_OF_CODE => $cloc, self::M_EXECUTABLE_LINES_OF_CODE => $eloc, self::M_LOGICAL_LINES_OF_CODE => $lloc, self::M_NON_COMMENT_LINES_OF_CODE => $ncloc);
     $this->updateProjectMetrics($id);
     $this->fireEndFile($compilationUnit);
 }