dmaax/ladybird
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
ladybird/Userland/Libraries/LibJS/Runtime/NativeFunction.h

51 lines
1.4 KiB
C
Raw Normal View History

LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 05:24:48 -03:00
* SPDX-License-Identifier: BSD-2-Clause
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
*/
#pragma once
#include <AK/Function.h>
LibJS: Rename Function => FunctionObject
2021-06-27 16:48:34 -03:00
#include <LibJS/Runtime/FunctionObject.h>
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
namespace JS {
LibJS: Rename Function => FunctionObject
2021-06-27 16:48:34 -03:00
class NativeFunction : public FunctionObject {
JS_OBJECT(NativeFunction, FunctionObject);
LibJS+LibWeb: Add JS::Object::inherits(class_name) To allow implementing the DOM class hierarchy in JS bindings, this patch adds an inherits() function that can be used to ask an Object if it inherits from a specific C++ class (by name). The necessary overrides are baked into each Object subclass by the new JS_OBJECT macro, which works similarly to C_OBJECT in LibCore. Thanks to @Dexesttp for suggesting this approach. :^)
2020-06-21 10:14:02 -03:00
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
public:
LibJS: Stop qualifying AK::Function Now that JS function objects are JS::FunctionObject, we can stop qualifying AK::Function and just say "Function" everywhere. Nice. :^)
2021-06-27 17:38:42 -03:00
static NativeFunction* create(GlobalObject&, const FlyString& name, Function<Value(VM&, GlobalObject&)>);
LibJS: Pass prototype to Function constructors
2020-04-17 14:59:32 -03:00
LibJS: Accept FlyStrings in the NativeFunction constructors This makes the implicit run-time assertion in PropertyName::to_string() into an explicit compile-time requirement, removes a wasteful FlyString -> PropertyName -> FlyString construction from NativeFunction::create() and allows setting the function name to a null string for anonymous native functions.
2021-06-27 21:45:49 -03:00
explicit NativeFunction(FlyString name, Function<Value(VM&, GlobalObject&)>, Object& prototype);
LibJS: Simplify Cell::initialize() Remove the Interpreter& argument and pass only GlobalObject&. We can find everything we need via the global object anyway.
2020-07-22 12:50:18 -03:00
virtual void initialize(GlobalObject&) override { }
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
virtual ~NativeFunction() override;
LibJS: Make Function::call() not require an Interpreter& This makes a difference inside ScriptFunction::call(), which will now instantiate a temporary Interpreter if one is not attached to the VM.
2020-09-27 12:24:14 -03:00
virtual Value call() override;
LibJS: Rename Function => FunctionObject
2021-06-27 16:48:34 -03:00
virtual Value construct(FunctionObject& new_target) override;
LibJS: Implement constructor/non-constructor function calls This adds Function::construct() for constructor function calls via `new` keyword. NativeFunction doesn't have constructor behaviour by default, ScriptFunction simply calls call() in construct()
2020-04-01 14:31:24 -03:00
LibJS: Make Function and CallFrame aware of their function name
2020-04-11 08:56:20 -03:00
virtual const FlyString& name() const override { return m_name; };
LibJS: Implement constructor/non-constructor function calls This adds Function::construct() for constructor function calls via `new` keyword. NativeFunction doesn't have constructor behaviour by default, ScriptFunction simply calls call() in construct()
2020-04-01 14:31:24 -03:00
virtual bool has_constructor() const { return false; }
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
LibJS: Move "strict mode" state to the call stack Each call frame now knows whether it's executing in strict mode. It's no longer necessary to access the scope stack to find this mode.
2020-10-04 08:54:44 -03:00
virtual bool is_strict_mode() const override;
LibJS: Set the callee context's realm in prepare_for_ordinary_call() This includes making FunctionObject::realm() actually return a Realm, instead of a GlobalObject.
2021-09-11 17:42:01 -03:00
virtual Realm* realm() const override { return m_realm; }
LibJS: Add a [[Realm]] getter to FunctionObject and use it where needed Defined by https://tc39.es/ecma262/#sec-ordinaryfunctioncreate step #17 and by https://tc39.es/ecma262/#sec-createbuiltinfunction step #6.
2021-06-30 11:54:47 -03:00
LibJS: Add a global "Object" constructor This patch adds an "Object" constructor to the global object. The only function it implements so far is Object.getPrototypeOf().
2020-03-28 13:23:54 -03:00
protected:
LibJS: Accept FlyStrings in the NativeFunction constructors This makes the implicit run-time assertion in PropertyName::to_string() into an explicit compile-time requirement, removes a wasteful FlyString -> PropertyName -> FlyString construction from NativeFunction::create() and allows setting the function name to a null string for anonymous native functions.
2021-06-27 21:45:49 -03:00
NativeFunction(FlyString name, Object& prototype);
LibJS: Pass prototype to Function constructors
2020-04-17 14:59:32 -03:00
explicit NativeFunction(Object& prototype);
LibJS: Add a global "Object" constructor This patch adds an "Object" constructor to the global object. The only function it implements so far is Object.getPrototypeOf().
2020-03-28 13:23:54 -03:00
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
private:
LibJS: Drop "Record" suffix from all the *Environment record classes "Records" in the spec are basically C++ classes, so let's drop this mouthful of a suffix.
2021-07-01 07:24:46 -03:00
virtual FunctionEnvironment* create_environment(FunctionObject&) override final;
LibJS: Add a bunch of fast_is<T> to avoid slow RTTI in hot code
2021-06-13 06:23:23 -03:00
virtual bool is_native_function() const final { return true; }
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
LibJS: Make Function and CallFrame aware of their function name
2020-04-11 08:56:20 -03:00
FlyString m_name;
LibJS: Stop qualifying AK::Function Now that JS function objects are JS::FunctionObject, we can stop qualifying AK::Function and just say "Function" everywhere. Nice. :^)
2021-06-27 17:38:42 -03:00
Function<Value(VM&, GlobalObject&)> m_native_function;
LibJS: Set the callee context's realm in prepare_for_ordinary_call() This includes making FunctionObject::realm() actually return a Realm, instead of a GlobalObject.
2021-09-11 17:42:01 -03:00
Realm* m_realm { nullptr };
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
};
LibJS: Add a bunch of fast_is<T> to avoid slow RTTI in hot code
2021-06-13 06:23:23 -03:00
template<>
inline bool Object::fast_is<NativeFunction>() const { return is_native_function(); }
LibJS: Add NativeFunction, a callable wrapper around a C++ lambda This can be used to implement arbitrary functionality, callable from JavaScript. To make this work, I had to change the way CallExpression passes arguments to the callee. Instead of a HashMap<String, Value>, we now pass an ordered list of Argument { String name; Value value; }. This patch includes a native "print(argument)" function. :^)
2020-03-12 15:53:31 -03:00
}
Reference in a new issue Copy permalink