luau-lang/luau
1
0
Fork 0
mirror of https://github.com/luau-lang/luau.git synced 2025-04-03 18:30:54 +01:00
Code Issues Projects Releases Packages Wiki Activity

remove const_cast

Browse source
This commit is contained in:
birds3345 2024-07-17 17:09:02 -04:00
parent 9b401ae1d6
commit 1cb6973100
2 changed files with 16 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
EqSat/include/Luau/UnionFind.h
View file

@ -19,6 +19,9 @@ struct UnionFind final
private:
std::vector<Id> parents;
std::vector<unsigned int> ranks;
private:
Id canonicalize(Id id) const;
};
} // namespace Luau::EqSat

21
EqSat/src/UnionFind.cpp
View file

@ -17,20 +17,14 @@ Id UnionFind::makeSet()
Id UnionFind::find(Id id) const
{
LUAU_ASSERT(size_t(id) < parents.size());
// An e-class id 𝑎 is canonical iff find(𝑎) = 𝑎.
while (id != parents[size_t(id)])
id = parents[size_t(id)];
return id;
return canonicalize(id);
}
Id UnionFind::find(Id id)
{
LUAU_ASSERT(size_t(id) < parents.size());
Id set = const_cast<const UnionFind*>(this)->find(id);
Id set = canonicalize(id);
// An e-class id 𝑎 is canonical iff find(𝑎) = 𝑎.
while (id != parents[size_t(id)])
@ -62,4 +56,15 @@ void UnionFind::merge(Id a, Id b)
ranks[size_t(aSet)]++;
}
Id UnionFind::canonicalize(Id id) const
{
LUAU_ASSERT(size_t(id) < parents.size());
// An e-class id 𝑎 is canonical iff find(𝑎) = 𝑎.
while (id != parents[size_t(id)])
id = parents[size_t(id)];
return id;
}
} // namespace Luau::EqSat