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LibJS: Strict mode is now handled by Functions and Programs, not Blocks

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Since blocks can't be strict by themselves, it makes no sense for them
to store whether or not they are strict. Strict-ness is now stored in
the Program and FunctionNode ASTNodes. Fixes issue #3641
This commit is contained in:
Matthew Olsson 2020-10-03 17:02:43 -07:00 • committed by Andreas Kling
parent 1b3f9c170c
commit 6eb6752c4c
10 changed files with 92 additions and 37 deletions
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23
Libraries/LibJS/AST.h
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@ -129,8 +129,6 @@ public:
void add_functions(NonnullRefPtrVector<FunctionDeclaration>);
const NonnullRefPtrVector<VariableDeclaration>& variables() const { return m_variables; }
const NonnullRefPtrVector<FunctionDeclaration>& functions() const { return m_functions; }
bool in_strict_mode() const { return m_strict_mode; }
void set_strict_mode() { m_strict_mode = true; }
protected:
ScopeNode() { }
@ -140,14 +138,20 @@ private:
NonnullRefPtrVector<Statement> m_children;
NonnullRefPtrVector<VariableDeclaration> m_variables;
NonnullRefPtrVector<FunctionDeclaration> m_functions;
bool m_strict_mode { false };
};
class Program final : public ScopeNode {
public:
Program() { }
virtual Value execute(Interpreter&, GlobalObject&) const override;
bool is_strict_mode() const { return m_is_strict_mode; }
void set_strict_mode() { m_is_strict_mode = true; }
private:
bool m_is_strict_mode { false };
virtual bool is_program() const override { return true; }
virtual const char* class_name() const override { return "Program"; }
};
@ -180,14 +184,16 @@ public:
const Statement& body() const { return *m_body; }
const Vector<Parameter>& parameters() const { return m_parameters; };
i32 function_length() const { return m_function_length; }
bool is_strict_mode() const { return m_is_strict_mode; }
protected:
FunctionNode(const FlyString& name, NonnullRefPtr<Statement> body, Vector<Parameter> parameters, i32 function_length, NonnullRefPtrVector<VariableDeclaration> variables)
FunctionNode(const FlyString& name, NonnullRefPtr<Statement> body, Vector<Parameter> parameters, i32 function_length, NonnullRefPtrVector<VariableDeclaration> variables, bool is_strict_mode)
: m_name(name)
, m_body(move(body))
, m_parameters(move(parameters))
, m_variables(move(variables))
, m_function_length(function_length)
, m_is_strict_mode(is_strict_mode)
{
}
@ -201,6 +207,7 @@ private:
const Vector<Parameter> m_parameters;
NonnullRefPtrVector<VariableDeclaration> m_variables;
const i32 m_function_length;
bool m_is_strict_mode;
};
class FunctionDeclaration final
@ -209,8 +216,8 @@ class FunctionDeclaration final
public:
static bool must_have_name() { return true; }
FunctionDeclaration(const FlyString& name, NonnullRefPtr<Statement> body, Vector<Parameter> parameters, i32 function_length, NonnullRefPtrVector<VariableDeclaration> variables)
: FunctionNode(name, move(body), move(parameters), function_length, move(variables))
FunctionDeclaration(const FlyString& name, NonnullRefPtr<Statement> body, Vector<Parameter> parameters, i32 function_length, NonnullRefPtrVector<VariableDeclaration> variables, bool is_strict_mode = false)
: FunctionNode(name, move(body), move(parameters), function_length, move(variables), is_strict_mode)
{
}
@ -227,8 +234,8 @@ class FunctionExpression final
public:
static bool must_have_name() { return false; }
FunctionExpression(const FlyString& name, NonnullRefPtr<Statement> body, Vector<Parameter> parameters, i32 function_length, NonnullRefPtrVector<VariableDeclaration> variables, bool is_arrow_function = false)
: FunctionNode(name, move(body), move(parameters), function_length, move(variables))
FunctionExpression(const FlyString& name, NonnullRefPtr<Statement> body, Vector<Parameter> parameters, i32 function_length, NonnullRefPtrVector<VariableDeclaration> variables, bool is_strict_mode, bool is_arrow_function = false)
: FunctionNode(name, move(body), move(parameters), function_length, move(variables), is_strict_mode)
, m_is_arrow_function(is_arrow_function)
{
}