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Passing This code compiles and runs correctly.
Code
// PIN (enforcement): append demands <instance>; calling it on a <view!>
// is a phantom state mismatch. Write access requires taking ownership.
~import std/string
~std/string:from-page(text: "hello")
| ok s |> std/string:append(s, text: " world")
| ok |> std/string:free(s)
| err _ |> std/string:free(s)
| err _ |> _
Must contain:
Phantom state mismatchFlows
flow ~from-page click a branch to expand · @labels scroll to their anchor
from-page (text: "hello")