Handle constant declaration

Author: kylekatarnls

.codeclimate.yml

@@ -11,6 +11,9 @@ engines:
     enabled: true
   phpmd:
     enabled: true
+    checks:
+      Design/CouplingBetweenObjects:
+        enabled: false
     exclude_fingerprints:
     # Ignore Stream checks
     - 862522819408aad57533cfe39d74fde2

examples/calcul.js

@@ -1,5 +1,5 @@
-a = 4;
+A = 4;
 b = 1;
 c = 3;
 
-return round(Math.PI * 100) + b + a * c;
+return round(Math.PI * 100) + b + A * c;

src/JsPhpize/Compiler/Compiler.php

@@ -87,6 +87,13 @@ public function compileDependencies($dependencies)
 
     protected function visitAssignation(Assignation $assignation, $indent)
     {
+        if ($assignation->leftHand instanceof Constant && $assignation->leftHand->type === 'constant') {
+            return 'define(' .
+                var_export(strval($assignation->leftHand->value), true) . ', ' .
+                $this->visitNode($assignation->rightHand, $indent) .
+            ')';
+        }
+
         return $this->visitNode($assignation->leftHand, $indent) .
             ' ' . $assignation->operator .
             ' ' . $this->visitNode($assignation->rightHand, $indent);

src/JsPhpize/Parser/Parser.php

@@ -304,7 +304,7 @@ protected function parseInstructions($block)
             if ($token->is($endToken)) {
                 break;
             }
-            if ($token->is('var')) {
+            if ($token->isIn('var', 'const')) {
                 continue;
             }
             if ($token->is('let')) {

src/JsPhpize/Parser/TokenExtractor.php

@@ -2,29 +2,42 @@
 
 namespace JsPhpize\Parser;
 
+use JsPhpize\Lexer\Token;
 use JsPhpize\Nodes\Assignation;
 use JsPhpize\Nodes\Constant;
 use JsPhpize\Nodes\Dyiade;
 use JsPhpize\Nodes\FunctionCall;
 
 abstract class TokenExtractor extends TokenCrawler
 {
-    protected function getBracketsArrayItemKeyFromToken($token)
+    protected function getStringExport($value)
     {
-        $type = null;
+        return array('string', var_export($value, true));
+    }
 
+    protected function getTypeAndValueFromToken(Token $token)
+    {
         if ($token->is('keyword')) {
-            $type = 'string';
-            $value = var_export($token->value, true);
-        } elseif ($token->isValue()) {
+            return $this->getStringExport($token->value);
+        }
+
+        if ($token->isValue()) {
             $type = $token->type;
             $value = $token->value;
+
             if ($type === 'variable') {
-                $type = 'string';
-                $value = var_export($value, true);
+                return $this->getStringExport($value);
             }
+
+            return array($token->type, $token->value);
         }
 
+        return array(null, null);
+    }
+    protected function getBracketsArrayItemKeyFromToken($token)
+    {
+        list($type, $value) = $this->getTypeAndValueFromToken($token);
+
         if ($type) {
             $token = $this->next();
             if (!$token) {