ae2a15bc14
This macro will read a pointer of any type, return it, and set the pointer to NULL. This is useful as an explicit concept of passing ownership of a memory area between pointers. This takes inspiration from Rust: https://doc.rust-lang.org/std/option/enum.Option.html#method.take and was suggested by Alan Jenkins (@sourcejedi). It drops ~160 lines of code from our codebase, which makes me like it. Also, I think it clarifies passing of ownership, and thus helps readability a bit (at least for the initiated who know the new macro)
15 lines
160 B
Plaintext
15 lines
160 B
Plaintext
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local idexpression p;
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expression q;
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@@
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- p = q;
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- q = NULL;
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- return p;
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+ return TAKE_PTR(q);
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@@
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expression p, q;
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@@
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- p = q;
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- q = NULL;
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+ p = TAKE_PTR(q);
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