26 lines
710 B
JavaScript
26 lines
710 B
JavaScript
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function mutate(x, y) {}
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function Component(props) {
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const a = {};
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const b = [a]; // array elements alias
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const c = {};
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const d = {
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c
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}; // object values alias
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// capture all the values into this object
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const x = {};
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x.b = b;
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const y = x |> mutate(%, d); // mutation aliases the arg and return value
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// all of these tests are seemingly readonly, since the values are never directly
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// mutated again. but they are all aliased by `x`, which is later modified, and
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// these are therefore mutable references:
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if (a) {}
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if (b) {}
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if (c) {}
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if (d) {}
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if (y) {}
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// could in theory mutate any of a/b/c/x/z, so the above should be inferred as mutable
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x |> mutate(%, null);
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}
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