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JSSpecCompiler: Restrict usage of NodeSubtreePointer

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This class stores a non-owning raw pointer to a member of `Node`, so
extra care is needed to ensure that referenced `Node`s will be alive
by the time `NodeSubtreePointer` is used. Since we only need to use this
class while traversing AST in `RecursiveASTVisitor`, access to class
methods can be restricted using `Badge<RecursiveASTVisitor>`.
This commit is contained in:
Dan Klishch 2023-09-02 14:33:35 -04:00 • committed by Andrew Kaster
parent f789d26e37
commit 1c4cd34320
3 changed files with 8 additions and 4 deletions
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5
Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/AST.h
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@ -6,6 +6,7 @@
#pragma once
#include <AK/Badge.h>
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <AK/Vector.h>
@ -27,9 +28,9 @@ public:
{
}
Tree& get() { return *m_tree_ptr; }
Tree& get(Badge<RecursiveASTVisitor>) { return *m_tree_ptr; }
void replace_subtree(Tree tree) { *m_tree_ptr = move(tree); }
void replace_subtree(Badge<RecursiveASTVisitor>, Tree tree) { *m_tree_ptr = move(tree); }
private:
Tree* m_tree_ptr;