some tests failing because things have been made reference in vector, but grammer actually generates the state set for the real grammer in 2 minutes or so after a day of profiling and bugfixing, so this is gonna be committed.

stdlib/stack.krak

@@ -0,0 +1,43 @@
+import vector
+
+
+fun stack<T>():stack<T> {
+    var out.construct():stack<T>
+    return out
+}
+fun stack<T>(in:T):stack<T> {
+    var out.construct():stack<T>
+    out.push(in)
+    return out
+}
+
+obj stack<T> (Object) {
+    var data: vector::vector<T>
+    fun construct(): *stack<T> {
+        data.construct()
+        return this
+    }
+    fun copy_construct(other: *stack<T>) {
+        data.copy_construct(&other->data)
+    }
+    fun destruct() {
+        data.destruct()
+    }
+    fun operator=(other: ref stack<T>) {
+        data = other.data
+    }
+    fun push(it: ref T) {
+        data.addEnd(it)
+    }
+    fun pop(): T {
+        var toRet = data[data.size-1]
+        data.remove(data.size-1)
+        return toRet
+    }
+    fun top(): T {
+        return data[data.size-1]
+    }
+    fun size(): int {
+        return data.size
+    }
+}