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LibJS: Use FlyString for identifiers

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This makes variable and property lookups a lot faster since comparing
two FlyStrings is O(1).
This commit is contained in:
Andreas Kling 2020-03-22 11:07:55 +01:00
parent 4f72f6b886
commit cccbe43056
19 changed files with 67 additions and 57 deletions
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4
Libraries/LibJS/Runtime/Array.cpp
View file

@ -59,7 +59,7 @@ void Array::visit_children(Cell::Visitor& visitor)
visitor.visit(element);
}
Optional<Value> Array::get_own_property(const String& property_name) const
Optional<Value> Array::get_own_property(const FlyString& property_name) const
{
bool ok;
i32 index = property_name.to_int(ok);
@ -70,7 +70,7 @@ Optional<Value> Array::get_own_property(const String& property_name) const
return Object::get_own_property(property_name);
}
bool Array::put_own_property(const String& property_name, Value value)
bool Array::put_own_property(const FlyString& property_name, Value value)
{
bool ok;
i32 index = property_name.to_int(ok);

4
Libraries/LibJS/Runtime/Array.h
View file

@ -45,8 +45,8 @@ private:
virtual const char* class_name() const override { return "Array"; }
virtual void visit_children(Cell::Visitor&) override;
virtual bool is_array() const override { return true; }
virtual Optional<Value> get_own_property(const String& property_name) const override;
virtual bool put_own_property(const String& property_name, Value) override;
virtual Optional<Value> get_own_property(const FlyString& property_name) const override;
virtual bool put_own_property(const FlyString& property_name, Value) override;
Vector<Value> m_elements;
};

1
Libraries/LibJS/Runtime/ConsoleObject.cpp
View file

@ -25,6 +25,7 @@
*/
#include <AK/Function.h>
#include <AK/FlyString.h>
#include <LibJS/Runtime/ConsoleObject.h>
#include <stdio.h>

1
Libraries/LibJS/Runtime/MathObject.cpp
View file

@ -25,6 +25,7 @@
*/
#include <AK/Function.h>
#include <AK/FlyString.h>
#include <LibJS/Runtime/MathObject.h>
namespace JS {

14
Libraries/LibJS/Runtime/Object.cpp
View file

@ -44,7 +44,7 @@ Object::~Object()
{
}
Optional<Value> Object::get_own_property(const String& property_name) const
Optional<Value> Object::get_own_property(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())
@ -52,7 +52,7 @@ Optional<Value> Object::get_own_property(const String& property_name) const
return value_here;
}
bool Object::put_own_property(const String& property_name, Value value)
bool Object::put_own_property(const FlyString& property_name, Value value)
{
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()) {
@ -63,7 +63,7 @@ bool Object::put_own_property(const String& property_name, Value value)
return true;
}
Value Object::get(const String& property_name) const
Value Object::get(const FlyString& property_name) const
{
const Object* object = this;
while (object) {
@ -75,7 +75,7 @@ Value Object::get(const String& property_name) const
return js_undefined();
}
void Object::put(const String& property_name, Value value)
void Object::put(const FlyString& property_name, Value value)
{
Object* object = this;
while (object) {
@ -93,12 +93,12 @@ void Object::put(const String& property_name, Value value)
put_own_property(property_name, value);
}
void Object::put_native_function(String property_name, AK::Function<Value(Object*, Vector<Value>)> native_function)
void Object::put_native_function(const FlyString& property_name, AK::Function<Value(Object*, Vector<Value>)> native_function)
{
put(property_name, heap().allocate<NativeFunction>(move(native_function)));
}
void Object::put_native_property(String 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(Object*)> getter, AK::Function<void(Object*, Value)> setter)
{
put(property_name, heap().allocate<NativeProperty>(move(getter), move(setter)));
}
@ -112,7 +112,7 @@ void Object::visit_children(Cell::Visitor& visitor)
visitor.visit(it.value);
}
bool Object::has_own_property(const String& property_name) const
bool Object::has_own_property(const FlyString& property_name) const
{
return m_properties.get(property_name).has_value();
}

16
Libraries/LibJS/Runtime/Object.h
View file

@ -40,14 +40,14 @@ public:
Object();
virtual ~Object();
Value get(const String& property_name) const;
void put(const String& property_name, Value);
Value get(const FlyString& property_name) const;
void put(const FlyString& property_name, Value);
virtual Optional<Value> get_own_property(const String& property_name) const;
virtual bool put_own_property(const String& property_name, Value);
virtual Optional<Value> get_own_property(const FlyString& property_name) const;
virtual bool put_own_property(const FlyString& property_name, Value);
void put_native_function(String property_name, AK::Function<Value(Object*, Vector<Value>)>);
void put_native_property(String property_name, AK::Function<Value(Object*)> getter, AK::Function<void(Object*, Value)> setter);
void put_native_function(const FlyString& property_name, AK::Function<Value(Object*, Vector<Value>)>);
void put_native_property(const FlyString& property_name, AK::Function<Value(Object*)> getter, AK::Function<void(Object*, Value)> setter);
virtual bool is_array() const { return false; }
virtual bool is_function() const { return false; }
@ -62,7 +62,7 @@ public:
const Object* prototype() const { return m_prototype; }
void set_prototype(Object* prototype) { m_prototype = prototype; }
bool has_own_property(const String& property_name) const;
bool has_own_property(const FlyString& property_name) const;
enum class PreferredType {
Default,
String,
@ -74,7 +74,7 @@ public:
virtual Value to_string() const;
private:
HashMap<String, Value> m_properties;
HashMap<FlyString, Value> m_properties;
Object* m_prototype { nullptr };
};

2
Libraries/LibJS/Runtime/ScriptFunction.cpp
View file

@ -31,7 +31,7 @@
namespace JS {
ScriptFunction::ScriptFunction(const ScopeNode& body, Vector<String> parameters)
ScriptFunction::ScriptFunction(const ScopeNode& body, Vector<FlyString> parameters)
: m_body(body)
, m_parameters(move(parameters))
{

6
Libraries/LibJS/Runtime/ScriptFunction.h
View file

@ -32,11 +32,11 @@ namespace JS {
class ScriptFunction final : public Function {
public:
ScriptFunction(const ScopeNode& body, Vector<String> parameters = {});
ScriptFunction(const ScopeNode& body, Vector<FlyString> parameters = {});
virtual ~ScriptFunction();
const ScopeNode& body() const { return m_body; }
const Vector<String>& parameters() const { return m_parameters; };
const Vector<FlyString>& parameters() const { return m_parameters; };
virtual Value call(Interpreter&, const Vector<Value>&) override;
@ -45,7 +45,7 @@ private:
virtual const char* class_name() const override { return "ScriptFunction"; }
NonnullRefPtr<ScopeNode> m_body;
const Vector<String> m_parameters;
const Vector<FlyString> m_parameters;
};
}