[8.x] Consume Blade Directive

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

@@ -161,6 +161,20 @@ protected function compileProps($expression)
 <?php unset(\$__defined_vars); ?>";
     }
 
+    /**
+     * Compile the consume statement into valid PHP.
+     *
+     * @param  string  $expression
+     * @return string
+     */
+    protected function compileConsume($expression)
+    {
+        return "<?php foreach ({$expression} as \$__key => \$__value) {
+    \$__consumeVariable = is_string(\$__key) ? \$__key : \$__value;
+    \$\$__consumeVariable = is_string(\$__key) ? \$__env->getConsumableComponentData(\$__key, \$__value) : \$__env->getConsumableComponentData(\$__value);
+} ?>";
+    }
+
     /**
      * Sanitize the given component attribute value.
      *

src/Illuminate/View/Concerns/ManagesComponents.php

@@ -115,6 +115,32 @@ protected function componentData()
         );
     }
 
+    /**
+     * Get an item from the component data that exists above the current component.
+     *
+     * @param  string  $key
+     * @param  mixed  $default
+     * @return mixed|null
+     */
+    public function getConsumableComponentData($key, $default = null)
+    {
+        $currentComponent = count($this->componentStack);
+
+        if ($currentComponent === 0) {
+            return value($default);
+        }
+
+        for ($i = $currentComponent - 1; $i >= 0; $i--) {
+            $data = $this->componentData[$i] ?? [];
+
+            if (array_key_exists($key, $data)) {
+                return $data[$key];
+            }
+        }
+
+        return value($default);
+    }
+
     /**
      * Start the slot rendering process.
      *