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JSSpecCompiler: Allow storing NullableTrees in nodes

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And use this in ElseIfBranch node.
This commit is contained in:
Dan Klishch 2023-08-18 16:23:29 -04:00 • committed by Andrew Kaster
parent 4eede5282c
commit 092ed1cc8a
7 changed files with 56 additions and 18 deletions
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14
Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/AST.h
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@ -28,12 +28,16 @@ public:
{
}
Tree& get(Badge<RecursiveASTVisitor>) { return *m_tree_ptr; }
NodeSubtreePointer(NullableTree* tree_ptr)
: m_tree_ptr(tree_ptr)
{
}
void replace_subtree(Badge<RecursiveASTVisitor>, Tree tree) { *m_tree_ptr = move(tree); }
Tree get(Badge<RecursiveASTVisitor>);
void replace_subtree(Badge<RecursiveASTVisitor>, NullableTree replacement);
private:
Tree* m_tree_ptr;
Variant<Tree*, NullableTree*> m_tree_ptr;
};
// ===== Generic nodes =====
@ -258,7 +262,7 @@ protected:
class ElseIfBranch : public Node {
public:
ElseIfBranch(Optional<Tree> condition, Tree branch)
ElseIfBranch(NullableTree condition, Tree branch)
: m_condition(condition)
, m_branch(branch)
{
@ -266,7 +270,7 @@ public:
Vector<NodeSubtreePointer> subtrees() override;
Optional<Tree> m_condition;
NullableTree m_condition;
Tree m_branch;
protected: