Zephir\Passes\LocalContextPass::pass PHP Method

    public function pass(StatementsBlock $block)
    {
        $this->passStatementBlock($block->getStatements());
    }

 /**
  * Pre-compiles the method making compilation pass data (static inference, local-context-pass) available to other methods
  *
  * @param CompilationContext $compilationContext
  * @return null
  * @throws CompilerException
  */
 public function preCompile(CompilationContext $compilationContext)
 {
     $localContext = null;
     $typeInference = null;
     $callGathererPass = null;
     if (is_object($this->statements)) {
         $compilationContext->currentMethod = $this;
         /**
          * This pass checks for zval variables than can be potentially
          * used without allocating memory and track it
          * these variables are stored in the stack
          */
         if ($compilationContext->config->get('local-context-pass', 'optimizations')) {
             $localContext = new LocalContextPass();
             $localContext->pass($this->statements);
         }
         /**
          * This pass tries to infer types for dynamic variables
          * replacing them by low level variables
          */
         if ($compilationContext->config->get('static-type-inference', 'optimizations')) {
             $typeInference = new StaticTypeInference();
             $typeInference->pass($this->statements);
             if ($compilationContext->config->get('static-type-inference-second-pass', 'optimizations')) {
                 $typeInference->reduce();
                 $typeInference->pass($this->statements);
             }
         }
         /**
          * This pass counts how many times a specific
          */
         if ($compilationContext->config->get('call-gatherer-pass', 'optimizations')) {
             $callGathererPass = new CallGathererPass($compilationContext);
             $callGathererPass->pass($this->statements);
         }
     }
     $this->localContext = $localContext;
     $this->typeInference = $typeInference;
     $this->callGathererPass = $callGathererPass;
 }