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doc/manual: Update signature of primop fn in hacking.md

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This should have been part of cl/5456, but I didn't notice it at the time.

Change-Id: I3afe75c5862ecd3ce2f616a2ae30aff96a6a6964
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skye
2026-04-22 08:39:49 -04:00
parent 84347f94da
commit 47c9f73d36
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doc/manual/src/contributing/hacking.md
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@@ -566,7 +566,7 @@ Then add the new file there, and don't forget to register it in the appropriate
The following metadata properties are supported for builtin functions:
* `name` (required): the language-facing name (as a member of the `builtins` attribute set) of the function.
* `implementation` (optional): a C++ expression specifying the implementation of the builtin.
It must be a function of signature `void(EvalState &, PosIdx, Value * *, Value &)`.
It must be a function of signature `Value(EvalState &, PosIdx, Value * *)`.
If not specified, defaults to `prim_${name}`.
* `renameInGlobalScope` (optional): whether the definition should be "hidden" in the global scope by prefixing its name with two underscores.
If not specified, defaults to `true`.