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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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9
Libraries/LibJS/Runtime/ScriptFunction.cpp
View file

@ -47,18 +47,19 @@ static ScriptFunction* typed_this(VM& vm, GlobalObject& global_object)
return static_cast<ScriptFunction*>(this_object);
}
ScriptFunction* ScriptFunction::create(GlobalObject& global_object, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, LexicalEnvironment* parent_environment, bool is_arrow_function)
ScriptFunction* ScriptFunction::create(GlobalObject& global_object, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, LexicalEnvironment* parent_environment, bool is_strict, bool is_arrow_function)
{
return global_object.heap().allocate<ScriptFunction>(global_object, global_object, name, body, move(parameters), m_function_length, parent_environment, *global_object.function_prototype(), is_arrow_function);
return global_object.heap().allocate<ScriptFunction>(global_object, global_object, name, body, move(parameters), m_function_length, parent_environment, *global_object.function_prototype(), is_strict, is_arrow_function);
}
ScriptFunction::ScriptFunction(GlobalObject& global_object, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, LexicalEnvironment* parent_environment, Object& prototype, bool is_arrow_function)
ScriptFunction::ScriptFunction(GlobalObject& global_object, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, LexicalEnvironment* parent_environment, Object& prototype, bool is_strict, bool is_arrow_function)
: Function(prototype, is_arrow_function ? vm().this_value(global_object) : Value(), {})
, m_name(name)
, m_body(body)
, m_parameters(move(parameters))
, m_parent_environment(parent_environment)
, m_function_length(m_function_length)
, m_is_strict(is_strict)
, m_is_arrow_function(is_arrow_function)
{
}
@ -140,7 +141,7 @@ Value ScriptFunction::call()
arguments.append({ parameter.name, value });
vm().current_environment()->set(global_object(), parameter.name, { value, DeclarationKind::Var });
}
return interpreter->execute_statement(global_object(), m_body, arguments, ScopeType::Function);
return interpreter->execute_statement(global_object(), m_body, arguments, ScopeType::Function, m_is_strict);
}
Value ScriptFunction::construct(Function&)

5
Libraries/LibJS/Runtime/ScriptFunction.h
View file

@ -35,9 +35,9 @@ class ScriptFunction final : public Function {
JS_OBJECT(ScriptFunction, Function);
public:
static ScriptFunction* create(GlobalObject&, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, LexicalEnvironment* parent_environment, bool is_arrow_function = false);
static ScriptFunction* create(GlobalObject&, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, LexicalEnvironment* parent_environment, bool is_strict, bool is_arrow_function = false);
ScriptFunction(GlobalObject&, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, LexicalEnvironment* parent_environment, Object& prototype, bool is_arrow_function = false);
ScriptFunction(GlobalObject&, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, LexicalEnvironment* parent_environment, Object& prototype, bool is_strict, bool is_arrow_function = false);
virtual void initialize(GlobalObject&) override;
virtual ~ScriptFunction();
@ -63,6 +63,7 @@ private:
const Vector<FunctionNode::Parameter> m_parameters;
LexicalEnvironment* m_parent_environment { nullptr };
i32 m_function_length;
bool m_is_strict;
bool m_is_arrow_function;
};

1
Libraries/LibJS/Runtime/VM.h
View file

@ -50,6 +50,7 @@ struct ScopeFrame {
ScopeType type;
NonnullRefPtr<ScopeNode> scope_node;
bool pushed_environment { false };
bool is_strict_mode { false };
};
struct CallFrame {