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refactor: xo-gc: + GCObjectVisitor.generation_of()

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Concession to narrow MutationLogStore to only use GCObjectVisitor
instead of assuming X1Collector.
This commit is contained in:
Roland Conybeare 2026-04-06 23:18:45 -04:00
commit b794f225b2
6 changed files with 36 additions and 7 deletions
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25
idl/GCObjectVisitor.json5
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@ -4,11 +4,9 @@
output_hpp_dir: "include/xo/alloc2",
output_impl_subdir: "gc",
includes: [
"<xo/alloc2/Generation.hpp>",
"<xo/alloc2/role.hpp>",
"<xo/arena/AllocInfo.hpp>",
// "<xo/alloc2/Allocator.hpp>",
// "<xo/alloc2/Collector.hpp>",
// "<cstdint>",
// "<cstddef>",
],
// extra includes in GCObject.hpp, if any
user_hpp_includes: [
@ -38,7 +36,7 @@
// },
],
const_methods: [
// AllocInfo alloc_info(void * gco);
// AllocInfo alloc_info(void * gco) const noexcept;
{
name: "alloc_info",
doc: [
@ -53,7 +51,22 @@
noexcept: false,
attributes: [],
},
// Generation generation_of(...);
// Generation generation_of(role r, const void * addr) const noexcept;
{
name: "generation_of",
doc: [
"generation to which pointer @p addr belongs, given role @p r;",
"sentinel if @p addr is not owned by collector",
],
return_type: "Generation",
args: [
{type: "role", name: "r"},
{type: "const void *", name: "addr"},
],
const: true,
noexcept: true,
attributes: [],
},
],
nonconst_methods: [
// void alloc_copy(void * src)