- First commit of first draft

src/Compiler/Context.php

@@ -0,0 +1,44 @@
+<?php declare(strict_types=1);
+
+namespace Picea\Compiler;
+
+use Picea\Compiler;
+
+abstract class Context {
+
+    public string $namespace = "";
+
+    public string $extendFrom = "";
+
+    public array $switchStack = [];
+
+    public array $iterateStack = [];
+
+    public array $useStack = [];
+
+    public array $hooks = [];
+
+    public Compiler $compiler;
+
+    public function hook(string $path, Callable $callback) : self
+    {
+        $this->hooks[$path] ??= [];
+        $this->hooks[$path][] = $callback;
+
+        return $this;
+    }
+
+    public function run(string $path, ...$arguments) : self
+    {
+        if ( $this->hooks[$path] ?? false ) {
+            while ( $callback = array_pop($this->hooks[$path]) ) {
+                $callback(...$arguments);
+            }
+        }
+    }
+
+    public function renderUses() : string
+    {
+        return implode(",", $context->useStack ?? []);
+    }
+}