1 files changed, 0 insertions, 212 deletions
diff --git a/src/Execution/Stack.php b/src/Execution/Stack.php
deleted file mode 100644
index 1e32388..0000000
--- a/src/Execution/Stack.php
+++ /dev/null
@@ -1,212 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Nsfisis\Waddiwasi\Execution;
-
-use Nsfisis\Waddiwasi\Structure\Types\RefType;
-use function assert;
-use function count;
-use function is_float;
-use function is_int;
-use function is_null;
-
-final class Stack
-{
-    /**
-     * @var list<Frame>
-     */
-    private array $frames = [];
-
-    private ?Frame $currentFrame = null;
-
-    /**
-     * @var list<int|float|Ref|Frame|Label>
-     */
-    private array $entries;
-
-    public function __construct()
-    {
-    }
-
-    public function pushFrame(Frame $frame): void
-    {
-        if ($this->getCallStackLimit() <= count($this->frames)) {
-            throw new StackOverflowException();
-        }
-        $this->push($frame);
-        $this->frames[] = $frame;
-        $this->currentFrame = $frame;
-    }
-
-    public function pushLabel(Label $label): void
-    {
-        $this->push($label);
-    }
-
-    public function pushValue(int|float|Ref $val): void
-    {
-        $this->push($val);
-    }
-
-    public function pushBool(bool $value): void
-    {
-        $this->pushValue((int)$value);
-    }
-
-    public function pushRefNull(RefType $type): void
-    {
-        $this->pushValue(Ref::RefNull($type));
-    }
-
-    public function pushRefFunc(int $addr): void
-    {
-        $this->pushValue(Ref::RefFunc($addr));
-    }
-
-    public function pushRefExtern(int $addr): void
-    {
-        $this->pushValue(Ref::RefExtern($addr));
-    }
-
-    public function clear(): void
-    {
-        $this->frames = [];
-        $this->currentFrame = null;
-        $this->entries = [];
-    }
-
-    public function popFrame(): Frame
-    {
-        $result = $this->pop();
-        assert($result instanceof Frame);
-        array_pop($this->frames);
-        if (count($this->frames) === 0) {
-            $this->currentFrame = null;
-        } else {
-            $this->currentFrame = end($this->frames);
-        }
-        return $result;
-    }
-
-    public function popValue(): int|float|Ref
-    {
-        $result = $this->pop();
-        assert(
-            is_int($result) || is_float($result) || $result instanceof Ref,
-            'Expected a value on the stack, but got ' . print_r($result, true),
-        );
-        return $result;
-    }
-
-    /**
-     * @return list<int|float|Ref>
-     */
-    public function popNValues(int $n): array
-    {
-        $results = [];
-        for ($i = 0; $i < $n; $i++) {
-            $results[] = $this->popValue();
-        }
-        return $results;
-    }
-
-    public function popInt(): int
-    {
-        $v = $this->popValue();
-        assert(is_int($v), "Expected an int on top of the stack, but got " . self::getValueTypeName($v));
-        return $v;
-    }
-
-    /**
-     * @return F32
-     */
-    public function popFloat(): float
-    {
-        $v = $this->popValue();
-        assert(is_float($v), "Expected a float on top of the stack, but got " . self::getValueTypeName($v));
-        return $v;
-    }
-
-    public function popRef(): Ref
-    {
-        $v = $this->popValue();
-        assert($v instanceof Ref, "Expected a Ref on top of the stack, but got " . self::getValueTypeName($v));
-        return $v;
-    }
-
-    /**
-     * @return list<int|float|Ref>
-     */
-    public function popValuesToLabel(): array
-    {
-        $results = [];
-        while (!$this->isEmpty()) {
-            $top = $this->pop();
-            if ($top instanceof Label) {
-                break;
-            } else {
-                assert(is_int($top) || is_float($top) || $top instanceof Ref);
-                $results[] = $top;
-            }
-        }
-        return $results;
-    }
-
-    public function popEntriesToCurrentFrame(): void
-    {
-        while (!$this->isEmpty() && !$this->top() instanceof Frame) {
-            $this->pop();
-        }
-        $this->popFrame();
-    }
-
-    public function top(): int|float|Ref|Frame|Label|null
-    {
-        $n = array_key_last($this->entries);
-        return $n === null ? null : $this->entries[$n];
-    }
-
-    public function count(): int
-    {
-        return count($this->entries);
-    }
-
-    public function isEmpty(): bool
-    {
-        return $this->count() === 0;
-    }
-
-    public function currentFrame(): Frame
-    {
-        assert($this->currentFrame !== null);
-        return $this->currentFrame;
-    }
-
-    public function getCallStackLimit(): int
-    {
-        return 1024;
-    }
-
-    private function push(int|float|Ref|Frame|Label $entry): void
-    {
-        $this->entries[] = $entry;
-    }
-
-    private function pop(): int|float|Ref|Frame|Label|null
-    {
-        return array_pop($this->entries);
-    }
-
-    private static function getValueTypeName(int|float|Ref|Frame|Label|null $value): string
-    {
-        return match (true) {
-            is_null($value) => 'null',
-            is_int($value) => 'int',
-            is_float($value) => 'float',
-            $value instanceof Ref => 'Ref',
-            $value instanceof Frame => 'Frame',
-            $value instanceof Label => 'Label',
-        };
-    }
-}