Merge pull request #223 from bobthecow/feature/faster-type-checking

Faster context lookups

src/Mustache/Compiler.php

@@ -609,9 +609,9 @@ class Mustache_Compiler
     {
         if ($this->customEscape) {
             return sprintf(self::CUSTOM_ESCAPE, $value);
-        } else {
-            return sprintf(self::DEFAULT_ESCAPE, $value, var_export($this->entityFlags, true), var_export($this->charset, true));
         }
+
+        return sprintf(self::DEFAULT_ESCAPE, $value, var_export($this->entityFlags, true), var_export($this->charset, true));
     }
 
     /**
@@ -631,11 +631,13 @@ class Mustache_Compiler
     {
         if ($id === '.') {
             return 'last';
-        } elseif (strpos($id, '.') === false) {
-            return 'find';
-        } else {
-            return 'findDot';
         }
+
+        if (strpos($id, '.') === false) {
+            return 'find';
+        }
+
+        return 'findDot';
     }
 
     const IS_CALLABLE        = '!is_string(%s) && is_callable(%s)';

src/Mustache/Context.php

@@ -172,19 +172,32 @@ class Mustache_Context
     private function findVariableInStack($id, array $stack)
     {
         for ($i = count($stack) - 1; $i >= 0; $i--) {
-            if (is_object($stack[$i]) && !($stack[$i] instanceof Closure)) {
+            $frame = &$stack[$i];
 
-                // Note that is_callable() *will not work here*
-                // See https://github.com/bobthecow/mustache.php/wiki/Magic-Methods
-                if (method_exists($stack[$i], $id)) {
-                    return $stack[$i]->$id();
-                } elseif (isset($stack[$i]->$id)) {
-                    return $stack[$i]->$id;
-                } elseif ($stack[$i] instanceof ArrayAccess && isset($stack[$i][$id])) {
-                    return $stack[$i][$id];
-                }
-            } elseif (is_array($stack[$i]) && array_key_exists($id, $stack[$i])) {
-                return $stack[$i][$id];
+            switch (gettype($frame)) {
+                case 'object':
+                    if (!($frame instanceof Closure)) {
+                        // Note that is_callable() *will not work here*
+                        // See https://github.com/bobthecow/mustache.php/wiki/Magic-Methods
+                        if (method_exists($frame, $id)) {
+                            return $frame->$id();
+                        }
+
+                        if (isset($frame->$id)) {
+                            return $frame->$id;
+                        }
+
+                        if ($frame instanceof ArrayAccess && isset($frame[$id])) {
+                            return $frame[$id];
+                        }
+                    }
+                    break;
+
+                case 'array':
+                    if (array_key_exists($id, $frame)) {
+                        return $frame[$id];
+                    }
+                    break;
             }
         }
 

src/Mustache/Template.php

@@ -113,19 +113,22 @@ abstract class Mustache_Template
      */
     protected function isIterable($value)
     {
-        if (is_object($value)) {
-            return $value instanceof Traversable;
-        } elseif (is_array($value)) {
-            $i = 0;
-            foreach ($value as $k => $v) {
-                if ($k !== $i++) {
-                    return false;
-                }
-            }
+        switch (gettype($value)) {
+            case 'object':
+                return $value instanceof Traversable;
 
-            return true;
-        } else {
-            return false;
+            case 'array':
+                $i = 0;
+                foreach ($value as $k => $v) {
+                    if ($k !== $i++) {
+                        return false;
+                    }
+                }
+
+                return true;
+
+            default:
+                return false;
         }
     }