Make some small internal tweaks to loops

src/Node/ForNode.php

@@ -65,7 +65,7 @@ class ForNode extends Node
 
         if ($this->hasNode('else')) {
             $compiler
-                ->write("if (!\${$loopName}->iterated()) {\n")
+                ->write("if (0 === \${$loopName}->getIndex0()) {\n")
                 ->indent()
                 ->subcompile($this->getNode('else'))
                 ->outdent()

src/Runtime/LoopContext.php

@@ -22,8 +22,10 @@ final class LoopContext
 {
     private mixed $lastChanged;
 
-    public function __construct(private LoopIterator $loop, private $parent)
-    {
+    public function __construct(
+        private LoopIterator $loop,
+        private $parent,
+    ) {
     }
 
     public function getParent(): mixed
@@ -63,7 +65,7 @@ final class LoopContext
 
     public function isLast(): bool
     {
-        return $this->loop->isLast();
+        return !$this->loop->getNext()['valid'];
     }
 
     public function hasChanged(mixed $value): bool

src/Runtime/LoopIterator.php

@@ -90,11 +90,6 @@ final class LoopIterator implements \Iterator
         return $this->current['valid'];
     }
 
-    public function iterated(): bool
-    {
-        return 0 !== $this->index0;
-    }
-
     public function getIndex0(): int
     {
         return $this->index0;
@@ -113,11 +108,6 @@ final class LoopIterator implements \Iterator
         return $this->length = count($this->seq);
     }
 
-    public function isLast(): bool
-    {
-        return !$this->getNext()['valid'];
-    }
-
     /**
      * @return array{valid: bool, key: mixed, value: mixed}
      */

tests/Node/ForTest.php

@@ -127,7 +127,7 @@ EOF
 foreach (\$__internal_compile_0 as \$context["k"] => \$context["v"]) {
     yield {$this->getVariableGetter('foo')};
 }
-if (!\$__internal_compile_0->iterated()) {
+if (0 === \$__internal_compile_0->getIndex0()) {
     yield {$this->getVariableGetter('foo')};
 }
 \$_parent = \$context['_parent'];