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LibJS: Preserve information about local variables declaration kind

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This is required for upcoming change where we want to emit ThrowIfTDZ
for assignment expressions only for lexical declarations.
This commit is contained in:
Aliaksandr Kalenik 2025-05-05 21:53:19 +03:00 • committed by Andreas Kling
parent 2774068ca0
commit db480b1f0c
Notes: github-actions[bot] 2025-05-06 10:07:32 +00:00
11 changed files with 83 additions and 40 deletions
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4
Libraries/LibJS/Bytecode/Generator.h
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@ -53,6 +53,7 @@ public:
void set_local_initialized(Identifier::Local const&);
[[nodiscard]] bool is_local_initialized(u32 local_index) const;
[[nodiscard]] bool is_local_initialized(Identifier::Local const&) const;
[[nodiscard]] bool is_local_lexically_declared(Identifier::Local const& local) const;
class SourceLocationScope {
public:
@ -358,7 +359,7 @@ public:
private:
VM& m_vm;
static CodeGenerationErrorOr<GC::Ref<Executable>> compile(VM&, ASTNode const&, FunctionKind, GC::Ptr<ECMAScriptFunctionObject const>, MustPropagateCompletion, Vector<FlyString> local_variable_names);
static CodeGenerationErrorOr<GC::Ref<Executable>> compile(VM&, ASTNode const&, FunctionKind, GC::Ptr<ECMAScriptFunctionObject const>, MustPropagateCompletion, Vector<LocalVariable> local_variable_names);
enum class JumpType {
Continue,
@ -413,6 +414,7 @@ private:
HashTable<u32> m_initialized_locals;
HashTable<u32> m_initialized_arguments;
Vector<LocalVariable> m_local_variables;
bool m_finished { false };
bool m_must_propagate_completion { true };