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LibJS: Rework how native functions are called to improve |this| value

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Native functions now only get the Interpreter& as an argument. They can
then extract |this| along with any indexed arguments it wants from it.

This forces functions that want |this| to actually deal with calling
interpreter.this_value().to_object(), and dealing with the possibility
of a non-object |this|.

This is still not great but let's keep massaging it forward.
This commit is contained in:
Andreas Kling 2020-03-28 22:48:35 +01:00
parent c209ea1985
commit 7c4e53f31e
25 changed files with 145 additions and 102 deletions
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6
Libraries/LibWeb/Bindings/CanvasRenderingContext2DWrapper.cpp
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@ -24,8 +24,9 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/Function.h>
#include <AK/FlyString.h>
#include <AK/Function.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/PrimitiveString.h>
#include <LibJS/Runtime/Value.h>
#include <LibWeb/Bindings/CanvasRenderingContext2DWrapper.h>
@ -50,7 +51,8 @@ CanvasRenderingContext2DWrapper::CanvasRenderingContext2DWrapper(CanvasRendering
[this](JS::Object*, JS::Value value) {
m_impl->set_fill_style(value.to_string());
});
put_native_function("fillRect", [this](JS::Object*, const Vector<JS::Value>& arguments) {
put_native_function("fillRect", [this](JS::Interpreter& interpreter) {
auto& arguments = interpreter.call_frame().arguments;
if (arguments.size() >= 4) {
m_impl->fill_rect(arguments[0].to_i32(), arguments[1].to_i32(), arguments[2].to_i32(), arguments[3].to_i32());
}