[12.x] Add @blank and @filled Blade directives

src/Illuminate/View/Compilers/Concerns/CompilesConditionals.php

@@ -232,6 +232,48 @@ protected function compileEndIsset()
         return '<?php endif; ?>';
     }
 
+    /**
+     * Compile the if-blank statements into valid PHP.
+     *
+     * @param  string  $expression
+     * @return string
+     */
+    protected function compileBlank($expression)
+    {
+        return "<?php if(blank{$expression}): ?>";
+    }
+
+    /**
+     * Compile the end-blank statements into valid PHP.
+     *
+     * @return string
+     */
+    protected function compileEndBlank()
+    {
+        return '<?php endif; ?>';
+    }
+
+    /**
+     * Compile the if-filled statements into valid PHP.
+     *
+     * @param  string  $expression
+     * @return string
+     */
+    protected function compileFilled($expression)
+    {
+        return "<?php if(filled{$expression}): ?>";
+    }
+
+    /**
+     * Compile the end-filled statements into valid PHP.
+     *
+     * @return string
+     */
+    protected function compileEndFilled()
+    {
+        return '<?php endif; ?>';
+    }
+
     /**
      * Compile the switch statements into valid PHP.
      *

tests/View/Blade/BladeIfBlankFilledStatementsTest.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Illuminate\Tests\View\Blade;
+
+class BladeIfBlankFilledStatementsTest extends AbstractBladeTestCase
+{
+    public function testBlankStatementsAreCompiled()
+    {
+        $string = '@blank ($test)
+breeze
+@endblank';
+        $expected = '<?php if(blank($test)): ?>
+breeze
+<?php endif; ?>';
+        $this->assertEquals($expected, $this->compiler->compileString($string));
+    }
+
+    public function testFilledStatementsAreCompiled()
+    {
+        $string = '@filled ($test)
+breeze
+@endfilled';
+        $expected = '<?php if(filled($test)): ?>
+breeze
+<?php endif; ?>';
+        $this->assertEquals($expected, $this->compiler->compileString($string));
+    }
+}