yeet

node_modules/ob1/src/__flowtests__/ob1-flowtest.js.flow

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+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ * @emails oncall+metro_bundler
+ */
+
+'use strict';
+
+const {add, get0, get1, add1, sub1, sub, neg, add0, inc} = require('../ob1');
+
+import type {Number0, Number1} from '../ob1';
+const FORTY_TWO_0 = add0(42);
+const FORTY_TWO_1 = add1(42);
+
+module.exports = {
+  testSafeOps() {
+    (add(FORTY_TWO_0, FORTY_TWO_0): Number0);
+    (add(FORTY_TWO_0, FORTY_TWO_1): Number1);
+    (add(FORTY_TWO_1, FORTY_TWO_0): Number1);
+    (sub(FORTY_TWO_1, FORTY_TWO_1): Number0);
+    (add(FORTY_TWO_0, 9000): Number0);
+    (add(FORTY_TWO_0, 9000): Number0);
+    (add(FORTY_TWO_1, 9000): Number1);
+    (sub(FORTY_TWO_1, 9000): Number1);
+    (get0(FORTY_TWO_0): number);
+    (get1(FORTY_TWO_1): number);
+    (neg(FORTY_TWO_0): Number0);
+    (add1(FORTY_TWO_0): Number1);
+    (sub1(FORTY_TWO_1): Number0);
+    (inc(FORTY_TWO_0): Number0);
+    (inc(FORTY_TWO_1): Number1);
+  },
+  testUnsafeOps() {
+    // $FlowExpectedError - adding two 1-based offsets.
+    add(FORTY_TWO_1, FORTY_TWO_1);
+
+    // $FlowExpectedError - subtracting 1-based offset from 0-based offset.
+    sub(FORTY_TWO_0, FORTY_TWO_1);
+
+    // $FlowExpectedError - direct computations with offsets are disallowed.
+    FORTY_TWO_0 - 1;
+
+    // $FlowExpectedError - direct computations with offsets are disallowed.
+    FORTY_TWO_1 - 1;
+
+    // $FlowExpectedError - extracting a 1-based offset as a 0-based number
+    get0(FORTY_TWO_1);
+
+    // $FlowExpectedError - extracting a 0-based offset as a 1-based number
+    get1(FORTY_TWO_0);
+
+    // $FlowExpectedError - negating a 1-based offset
+    neg(FORTY_TWO_1);
+
+    // $FlowExpectedError - adding 1 to an offset that's already 1-based
+    add1(FORTY_TWO_1);
+
+    // $FlowExpectedError - subtracting 1 from an offset that's already 0-based
+    sub1(FORTY_TWO_0);
+
+    // $FlowExpectedError - extracting an arbitrary number as a 0-based number
+    get0(42);
+
+    // $FlowExpectedError - extracting an arbitrary number as a 1-based number
+    get1(42);
+  },
+};