(broken tests) test for scoping inside pipelines

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/fsharp/arrow-functions-parenless/exec.js

@@ -0,0 +1,30 @@
+const y = 2;
+const f = (x) => x
+  |> (y) => y + 1
+  |> (z) => z * y
+
+const g = (x) => x
+  |> (y => { return (
+    y + 1
+    |> (z) => z * y);
+    }
+  )
+
+// bug: scope for the pipelinebody (???) does not consider the third y as a reference to the first
+
+const h = (x) => x
+  |> (y => (
+    y + 1
+    |> (z) => z * y)
+  )
+
+const i = (x) => x
+  |> (y) => (
+    y + 1
+    |> (z) => z * y
+  )
+
+expect(f(1)).toBe(4);
+expect(g(1)).toBe(2);
+expect(h(1)).toBe(2);
+// expect(i(1)).toBe(2);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/minimal/arrow-functions-parenless/exec.js

@@ -0,0 +1,20 @@
+const y = 2;
+const f = (x) => x
+  |> (y => y + 1)
+  |> (z => z * y)
+
+const g = (x) => x
+  |> (y =>
+    y + 1
+    |> (z => z * y)
+  )
+
+const h = (x) => x
+  |> (y => (
+    y + 1
+    |> (z => z * y)
+  ))
+
+expect(f(1)).toBe(4);
+expect(g(1)).toBe(2);
+expect(h(1)).toBe(2);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/minimal/arrow-functions-parenless/input.js

@@ -0,0 +1,20 @@
+const y = 2;
+const f = (x) => x
+  |> (y => y + 1)
+  |> (z => z * y)
+
+const g = (x) => x
+  |> (y =>
+    y + 1
+    |> (z => z * y)
+  )
+
+const h = (x) => x
+  |> (y => (
+    y + 1
+    |> (z => z * y)
+  ))
+
+expect(f(1)).toBe(4);
+expect(g(1)).toBe(2);
+expect(h(1)).toBe(2);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/minimal/arrow-functions-parenless/output.js

@@ -0,0 +1,23 @@
+const y = 2;
+
+const f = x => {
+  var _z, _y;
+
+  return _z = (_y = x, _y + 1), _z * y;
+};
+
+const g = x => {
+  var _y2, _z2;
+
+  return _y2 = x, (_z2 = _y2 + 1, _z2 * _y2);
+};
+
+const h = x => {
+  var _y3, _z3;
+
+  return _y3 = x, (_z3 = _y3 + 1, _z3 * _y3);
+};
+
+expect(f(1)).toBe(4);
+expect(g(1)).toBe(2);
+expect(h(1)).toBe(2);