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LibJS: Use Identifier to represent name of ClassExpression

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By using Identifier class to represent the name of a class expression,
it becomes possible to consistently store information within the
identifier object, indicating whether the name refers to a local
variable or not.
This commit is contained in:
Aliaksandr Kalenik 2023-06-30 16:51:39 +03:00 • committed by Andreas Kling
parent 4a83fb1b12
commit c734f2b5e6
4 changed files with 20 additions and 14 deletions
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9
Userland/Libraries/LibJS/AST.h
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@ -1405,7 +1405,7 @@ public:
class ClassExpression final : public Expression {
public:
ClassExpression(SourceRange source_range, DeprecatedString name, DeprecatedString source_text, RefPtr<FunctionExpression const> constructor, RefPtr<Expression const> super_class, Vector<NonnullRefPtr<ClassElement const>> elements)
ClassExpression(SourceRange source_range, RefPtr<Identifier const> name, DeprecatedString source_text, RefPtr<FunctionExpression const> constructor, RefPtr<Expression const> super_class, Vector<NonnullRefPtr<ClassElement const>> elements)
: Expression(source_range)
, m_name(move(name))
, m_source_text(move(source_text))
@ -1415,7 +1415,8 @@ public:
{
}
StringView name() const { return m_name; }
StringView name() const { return m_name ? m_name->string().view() : ""sv; }
DeprecatedString const& source_text() const { return m_source_text; }
RefPtr<FunctionExpression const> constructor() const { return m_constructor; }
@ -1424,7 +1425,7 @@ public:
virtual Bytecode::CodeGenerationErrorOr<void> generate_bytecode(Bytecode::Generator&) const override;
virtual Bytecode::CodeGenerationErrorOr<void> generate_bytecode_with_lhs_name(Bytecode::Generator&, Optional<Bytecode::IdentifierTableIndex> lhs_name) const;
bool has_name() const { return !m_name.is_empty(); }
bool has_name() const { return m_name; }
ThrowCompletionOr<ECMAScriptFunctionObject*> class_definition_evaluation(VM&, DeprecatedFlyString const& binding_name = {}, DeprecatedFlyString const& class_name = {}) const;
ThrowCompletionOr<ECMAScriptFunctionObject*> create_class_constructor(VM&, Environment* class_environment, Environment* environment, Value super_class, DeprecatedFlyString const& binding_name = {}, DeprecatedFlyString const& class_name = {}) const;
@ -1432,7 +1433,7 @@ public:
private:
virtual bool is_class_expression() const override { return true; }
DeprecatedString m_name;
RefPtr<Identifier const> m_name;
DeprecatedString m_source_text;
RefPtr<FunctionExpression const> m_constructor;
RefPtr<Expression const> m_super_class;