1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 10:07:44 +00:00

LibJS+LibWeb: Move native properties to separate getters/setters

This was a bit cumbersome now, but it gets us closer to a format suited
for code generation.
This commit is contained in:
Andreas Kling 2020-03-29 00:37:33 +01:00
parent 56936b97d0
commit 30440134cb
19 changed files with 210 additions and 96 deletions

View file

@ -27,20 +27,14 @@
#include <AK/Function.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/Error.h>
namespace JS {
Array::Array()
{
set_prototype(interpreter().array_prototype());
put_native_property(
"length",
[this](Object*) {
return Value(length());
},
[](Object*, Value) {
ASSERT_NOT_REACHED();
});
put_native_property("length", length_getter, length_setter);
}
Array::~Array()
@ -96,4 +90,20 @@ bool Array::put_own_property(Object& this_object, const FlyString& property_name
}
return Object::put_own_property(this_object, property_name, value);
}
Value Array::length_getter(Interpreter& interpreter)
{
auto* this_object = interpreter.this_value().to_object(interpreter.heap());
if (!this_object)
return {};
if (!this_object->is_array())
return interpreter.throw_exception<Error>("TypeError", "Not an array");
return Value(static_cast<const Array*>(this_object)->length());
}
void Array::length_setter(Interpreter&, Value)
{
ASSERT_NOT_REACHED();
}
}

View file

@ -50,6 +50,9 @@ private:
virtual Optional<Value> get_own_property(const Object& this_object, const FlyString& property_name) const override;
virtual bool put_own_property(Object& this_object, const FlyString& property_name, Value) override;
static Value length_getter(Interpreter&);
static void length_setter(Interpreter&, Value);
Vector<Value> m_elements;
};

View file

@ -36,25 +36,32 @@ namespace JS {
ErrorPrototype::ErrorPrototype()
{
put_native_property(
"name", [](Object* this_object) {
ASSERT(this_object);
ASSERT(this_object->is_error());
return js_string(this_object->heap(), static_cast<const Error*>(this_object)->name());
},
nullptr);
put_native_property(
"message", [](Object* this_object) {
ASSERT(this_object);
ASSERT(this_object->is_error());
return js_string(this_object->heap(), static_cast<const Error*>(this_object)->message());
},
nullptr);
put_native_property("name", name_getter, nullptr);
put_native_property("message", message_getter, nullptr);
}
ErrorPrototype::~ErrorPrototype()
{
}
Value ErrorPrototype::name_getter(Interpreter& interpreter)
{
auto* this_object = interpreter.this_value().to_object(interpreter.heap());
if (!this_object)
return {};
if (!this_object->is_error())
return interpreter.throw_exception<Error>("TypeError", "Not an Error object");
return js_string(interpreter.heap(), static_cast<const Error*>(this_object)->name());
}
Value ErrorPrototype::message_getter(Interpreter& interpreter)
{
auto* this_object = interpreter.this_value().to_object(interpreter.heap());
if (!this_object)
return {};
if (!this_object->is_error())
return interpreter.throw_exception<Error>("TypeError", "Not an Error object");
return js_string(interpreter.heap(), static_cast<const Error*>(this_object)->message());
}
}

View file

@ -37,6 +37,9 @@ public:
private:
virtual const char* class_name() const override { return "ErrorPrototype"; }
static Value name_getter(Interpreter&);
static Value message_getter(Interpreter&);
};
}

View file

@ -29,7 +29,7 @@
namespace JS {
NativeProperty::NativeProperty(AK::Function<Value(Object*)> getter, AK::Function<void(Object*, Value)> setter)
NativeProperty::NativeProperty(AK::Function<Value(Interpreter&)> getter, AK::Function<void(Interpreter&, Value)> setter)
: m_getter(move(getter))
, m_setter(move(setter))
{
@ -39,18 +39,18 @@ NativeProperty::~NativeProperty()
{
}
Value NativeProperty::get(Object* object) const
Value NativeProperty::get(Interpreter& interpreter) const
{
if (!m_getter)
return js_undefined();
return m_getter(object);
return m_getter(interpreter);
}
void NativeProperty::set(Object* object, Value value)
void NativeProperty::set(Interpreter& interpreter, Value value)
{
if (!m_setter)
return;
m_setter(object, move(value));
m_setter(interpreter, move(value));
}
}

View file

@ -33,18 +33,18 @@ namespace JS {
class NativeProperty final : public Object {
public:
NativeProperty(AK::Function<Value(Object*)> getter, AK::Function<void(Object*, Value)> setter);
NativeProperty(AK::Function<Value(Interpreter&)> getter, AK::Function<void(Interpreter&, Value)> setter);
virtual ~NativeProperty() override;
Value get(Object*) const;
void set(Object*, Value);
Value get(Interpreter&) const;
void set(Interpreter&, Value);
private:
virtual bool is_native_property() const override { return true; }
virtual const char* class_name() const override { return "NativeProperty"; }
AK::Function<Value(Object*)> m_getter;
AK::Function<void(Object*, Value)> m_setter;
AK::Function<Value(Interpreter&)> m_getter;
AK::Function<void(Interpreter&, Value)> m_setter;
};
}

View file

@ -56,8 +56,15 @@ bool Object::has_prototype(const Object* prototype) const
Optional<Value> Object::get_own_property(const Object& this_object, const FlyString& property_name) const
{
auto value_here = m_properties.get(property_name);
if (value_here.has_value() && value_here.value().is_object() && value_here.value().as_object()->is_native_property())
return static_cast<NativeProperty*>(value_here.value().as_object())->get(&const_cast<Object&>(this_object));
if (value_here.has_value() && value_here.value().is_object() && value_here.value().as_object()->is_native_property()) {
auto& native_property = static_cast<const NativeProperty&>(*value_here.value().as_object());
auto& interpreter = const_cast<Object*>(this)->interpreter();
auto& call_frame = interpreter.push_call_frame();
call_frame.this_value = const_cast<Object*>(&this_object);
auto result = native_property.get(interpreter);
interpreter.pop_call_frame();
return result;
}
return value_here;
}
@ -65,7 +72,13 @@ bool Object::put_own_property(Object& this_object, const FlyString& property_nam
{
auto value_here = m_properties.get(property_name);
if (value_here.has_value() && value_here.value().is_object() && value_here.value().as_object()->is_native_property()) {
static_cast<NativeProperty*>(value_here.value().as_object())->set(&this_object, value);
auto& native_property = static_cast<NativeProperty&>(*value_here.value().as_object());
auto& interpreter = const_cast<Object*>(this)->interpreter();
auto& call_frame = interpreter.push_call_frame();
call_frame.this_value = &this_object;
dbg() << "put_own_property: " << &this_object << " . " << property_name << " = " << value;
native_property.set(interpreter, value);
interpreter.pop_call_frame();
} else {
m_properties.set(property_name, value);
}
@ -91,7 +104,12 @@ void Object::put(const FlyString& property_name, Value value)
auto value_here = object->m_properties.get(property_name);
if (value_here.has_value()) {
if (value_here.value().is_object() && value_here.value().as_object()->is_native_property()) {
static_cast<NativeProperty*>(value_here.value().as_object())->set(const_cast<Object*>(this), value);
auto& native_property = static_cast<NativeProperty&>(*value_here.value().as_object());
auto& interpreter = const_cast<Object*>(this)->interpreter();
auto& call_frame = interpreter.push_call_frame();
call_frame.this_value = this;
native_property.set(interpreter, value);
interpreter.pop_call_frame();
return;
}
if (object->put_own_property(*this, property_name, value))
@ -107,7 +125,7 @@ void Object::put_native_function(const FlyString& property_name, AK::Function<Va
put(property_name, heap().allocate<NativeFunction>(move(native_function)));
}
void Object::put_native_property(const FlyString& property_name, AK::Function<Value(Object*)> getter, AK::Function<void(Object*, Value)> setter)
void Object::put_native_property(const FlyString& property_name, AK::Function<Value(Interpreter&)> getter, AK::Function<void(Interpreter&, Value)> setter)
{
put(property_name, heap().allocate<NativeProperty>(move(getter), move(setter)));
}

View file

@ -47,7 +47,7 @@ public:
virtual bool put_own_property(Object& this_object, const FlyString& property_name, Value);
void put_native_function(const FlyString& property_name, AK::Function<Value(Interpreter&)>);
void put_native_property(const FlyString& property_name, AK::Function<Value(Object*)> getter, AK::Function<void(Object*, Value)> setter);
void put_native_property(const FlyString& property_name, AK::Function<Value(Interpreter&)> getter, AK::Function<void(Interpreter&, Value)> setter);
virtual bool is_error() const { return false; }
virtual bool is_array() const { return false; }

View file

@ -28,6 +28,7 @@
#include <AK/StringBuilder.h>
#include <LibJS/Heap/Heap.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/PrimitiveString.h>
#include <LibJS/Runtime/StringObject.h>
#include <LibJS/Runtime/StringPrototype.h>
@ -37,13 +38,7 @@ namespace JS {
StringPrototype::StringPrototype()
{
put_native_property(
"length", [](Object* this_object) {
ASSERT(this_object);
ASSERT(this_object->is_string_object());
return Value((i32) static_cast<const StringObject*>(this_object)->primitive_string()->string().length());
},
nullptr);
put_native_property("length", length_getter, nullptr);
put_native_function("charAt", char_at);
put_native_function("repeat", repeat);
}
@ -88,4 +83,14 @@ Value StringPrototype::repeat(Interpreter& interpreter)
return js_string(interpreter.heap(), builder.to_string());
}
Value StringPrototype::length_getter(Interpreter& interpreter)
{
auto* this_object = interpreter.this_value().to_object(interpreter.heap());
if (!this_object)
return {};
if (!this_object->is_string_object())
return interpreter.throw_exception<Error>("TypeError", "Not a String object");
return Value((i32) static_cast<const StringObject*>(this_object)->primitive_string()->string().length());
}
}

View file

@ -40,6 +40,8 @@ private:
static Value char_at(Interpreter&);
static Value repeat(Interpreter&);
static Value length_getter(Interpreter&);
};
}