Add @cannot Blade directive

src/Illuminate/View/Compilers/BladeCompiler.php

@@ -550,6 +550,17 @@ protected function compileCan($expression)
         return "<?php if (Gate::check{$expression}): ?>";
     }
 
+    /**
+     * Compile the cannot statements into valid PHP.
+     *
+     * @param  string  $expression
+     * @return string
+     */
+    protected function compileCannot($expression)
+    {
+        return "<?php if (Gate::denies{$expression}): ?>";
+    }
+
     /**
      * Compile the if statements into valid PHP.
      *
@@ -640,6 +651,17 @@ protected function compileEndcan($expression)
         return '<?php endif; ?>';
     }
 
+    /**
+     * Compile the end-cannot statements into valid PHP.
+     *
+     * @param  string  $expression
+     * @return string
+     */
+    protected function compileEndcannot($expression)
+    {
+        return '<?php endif; ?>';
+    }
+
     /**
      * Compile the end-if statements into valid PHP.
      *

tests/View/ViewBladeCompilerTest.php

@@ -233,6 +233,18 @@ public function testCanStatementsAreCompiled()
         $this->assertEquals($expected, $compiler->compileString($string));
     }
 
+    public function testCannotStatementsAreCompiled()
+    {
+        $compiler = new BladeCompiler($this->getFiles(), __DIR__);
+        $string = '@cannot (\'update\', [$post])
+breeze
+@endcannot';
+        $expected = '<?php if (Gate::denies(\'update\', [$post])): ?>
+breeze
+<?php endif; ?>';
+        $this->assertEquals($expected, $compiler->compileString($string));
+    }
+
     public function testElseStatementsAreCompiled()
     {
         $compiler = new BladeCompiler($this->getFiles(), __DIR__);