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Refactor function return type representation (#6463)

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This separates the return type from the return pattern, and replaces the
return pattern with a block of return patterns. This is a step toward
support for `ref` returns (where there's no corresponding return
pattern) and compund-form returns (where there may be multiple return
patterns).
This commit is contained in:
Geoff Romer
2025-12-10 18:34:23 +00:00
committed by GitHub
parent 77918d023b
commit bf45b1cbf5
57 changed files with 1668 additions and 1532 deletions
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toolchain/check/global_init.cpp
+2 -1
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@@ -49,7 +49,8 @@ auto GlobalInit::Finalize() -> void {
.non_owning_decl_id = SemIR::InstId::None,
.first_owning_decl_id = SemIR::InstId::None},
{.call_params_id = SemIR::InstBlockId::Empty,
.return_slot_pattern_id = SemIR::InstId::None,
.return_type_inst_id = SemIR::TypeInstId::None,
.return_patterns_id = SemIR::InstBlockId::None,
.body_block_ids = {SemIR::InstBlockId::GlobalInit}}}));
}