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chromium/chromium-123-v8-c++20.patch

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fixed compiler error with clang16 on epel 8/9 and fedora38
9 months ago
commit 940af9f2c87b436559b97c53763aa9eaaf1254eb
Author: Jeremy Roman <jbroman@chromium.org>
Date: Wed Nov 15 16:24:54 2023 +0000
Use C++20 features to simplify blink::NativeValueTraitsBase.
These allow some of the metaprogramming bits to be simplified a little.
Change-Id: I052b4397586d21348401616e1792afdb9662f975
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5030335
Reviewed-by: Yuki Shiino <yukishiino@chromium.org>
Commit-Queue: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1224978}
diff --git a/third_party/blink/renderer/bindings/core/v8/native_value_traits.h b/third_party/blink/renderer/bindings/core/v8/native_value_traits.h
index 7fc91d14acc71..1e5a0790df6da 100644
--- a/third_party/blink/renderer/bindings/core/v8/native_value_traits.h
+++ b/third_party/blink/renderer/bindings/core/v8/native_value_traits.h
@@ -5,6 +5,7 @@
#ifndef THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_NATIVE_VALUE_TRAITS_H_
#define THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_NATIVE_VALUE_TRAITS_H_
+#include <concepts>
#include <type_traits>
#include "third_party/blink/renderer/bindings/core/v8/idl_types_base.h"
@@ -30,7 +31,7 @@ class ExceptionState;
// return toInt32(isolate, value, exceptionState, NormalConversion);
// }
// }
-template <typename T, typename SFINAEHelper = void>
+template <typename T>
struct NativeValueTraits;
// This declaration serves only as a blueprint for specializations: the
@@ -45,22 +46,15 @@ struct NativeValueTraits;
namespace bindings {
-template <typename T, typename = void>
-struct NativeValueTraitsHasIsNull : std::false_type {};
-
template <typename T>
-struct NativeValueTraitsHasIsNull<
- T,
- std::void_t<decltype(std::declval<T>().IsNull())>> : std::true_type {};
+struct ImplTypeFor {
+ using type = T;
+};
template <typename T>
-struct NativeValueTraitsHasNullValue {
- // true if |T| supports IDL null value.
- static constexpr bool value =
- // ScriptValue, String, and union types have IsNull member function.
- bindings::NativeValueTraitsHasIsNull<T>::value ||
- // Pointer types have nullptr as IDL null value.
- std::is_pointer<T>::value;
+ requires std::derived_from<T, IDLBase>
+struct ImplTypeFor<T> {
+ using type = typename T::ImplType;
};
} // namespace bindings
@@ -78,37 +72,17 @@ struct NativeValueTraitsHasNullValue {
// If present, |NullValue()| will be used when converting from the nullable type
// T?, and should be used if the impl type has an existing "null" state. If not
// present, WTF::Optional will be used to wrap the type.
-template <typename T, typename SFINAEHelper = void>
-struct NativeValueTraitsBase {
- STATIC_ONLY(NativeValueTraitsBase);
-
- using ImplType = T;
-
- static constexpr bool has_null_value =
- bindings::NativeValueTraitsHasNullValue<ImplType>::value;
-
- template <typename... ExtraArgs>
- static decltype(auto) ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state,
- ExtraArgs... extra_args) {
- return NativeValueTraits<std::remove_pointer_t<T>>::NativeValue(
- isolate, value, exception_state,
- std::forward<ExtraArgs>(extra_args)...);
- }
-};
-
template <typename T>
-struct NativeValueTraitsBase<
- T,
- std::enable_if_t<std::is_base_of<IDLBase, T>::value>> {
+struct NativeValueTraitsBase {
STATIC_ONLY(NativeValueTraitsBase);
- using ImplType = typename T::ImplType;
+ using ImplType = bindings::ImplTypeFor<T>::type;
+ // Pointer types have nullptr as IDL null value.
+ // ScriptValue, String, and union types have IsNull member function.
static constexpr bool has_null_value =
- bindings::NativeValueTraitsHasNullValue<ImplType>::value;
+ std::is_pointer_v<ImplType> ||
+ requires(ImplType value) { value.IsNull(); };
template <typename... ExtraArgs>
static decltype(auto) ArgumentValue(v8::Isolate* isolate,
diff --git a/third_party/blink/renderer/bindings/core/v8/native_value_traits_buffer_sources.cc b/third_party/blink/renderer/bindings/core/v8/native_value_traits_buffer_sources.cc
index 508ea6d8eea48..18de71d84023f 100644
--- a/third_party/blink/renderer/bindings/core/v8/native_value_traits_buffer_sources.cc
+++ b/third_party/blink/renderer/bindings/core/v8/native_value_traits_buffer_sources.cc
@@ -7,6 +7,7 @@
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/web_feature.h"
+#include "third_party/blink/renderer/core/typed_arrays/flexible_array_buffer_view.h"
#include "third_party/blink/renderer/core/typed_arrays/typed_flexible_array_buffer_view.h"
namespace blink {
@@ -698,12 +699,11 @@ DOMArrayBufferBase* NativeValueTraits<
// ArrayBufferView
template <typename T>
-NotShared<T> NativeValueTraits<
- NotShared<T>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- NativeValue(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+NotShared<T> NativeValueTraits<NotShared<T>>::NativeValue(
+ v8::Isolate* isolate,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return NativeValueImpl<
RecipeTrait<NotShared<T>>, ToDOMViewType<T, kNotShared>,
Nullablity::kIsNotNullable, BufferSizeCheck::kCheck,
@@ -712,13 +712,12 @@ NotShared<T> NativeValueTraits<
}
template <typename T>
-NotShared<T> NativeValueTraits<
- NotShared<T>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+NotShared<T> NativeValueTraits<NotShared<T>>::ArgumentValue(
+ v8::Isolate* isolate,
+ int argument_index,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return ArgumentValueImpl<
RecipeTrait<NotShared<T>>, ToDOMViewType<T, kNotShared>,
Nullablity::kIsNotNullable, BufferSizeCheck::kCheck,
@@ -729,12 +728,11 @@ NotShared<T> NativeValueTraits<
// [AllowShared] ArrayBufferView
template <typename T>
-MaybeShared<T> NativeValueTraits<
- MaybeShared<T>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- NativeValue(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+MaybeShared<T> NativeValueTraits<MaybeShared<T>>::NativeValue(
+ v8::Isolate* isolate,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return NativeValueImpl<RecipeTrait<MaybeShared<T>>,
ToDOMViewType<T, kMaybeShared>,
Nullablity::kIsNotNullable, BufferSizeCheck::kCheck,
@@ -743,13 +741,12 @@ MaybeShared<T> NativeValueTraits<
}
template <typename T>
-MaybeShared<T> NativeValueTraits<
- MaybeShared<T>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+MaybeShared<T> NativeValueTraits<MaybeShared<T>>::ArgumentValue(
+ v8::Isolate* isolate,
+ int argument_index,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return ArgumentValueImpl<RecipeTrait<MaybeShared<T>>,
ToDOMViewType<T, kMaybeShared>,
Nullablity::kIsNotNullable, BufferSizeCheck::kCheck,
@@ -760,12 +757,12 @@ MaybeShared<T> NativeValueTraits<
// [AllowShared, BufferSourceTypeNoSizeLimit] ArrayBufferView
template <typename T>
-MaybeShared<T> NativeValueTraits<
- IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- NativeValue(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+MaybeShared<T>
+NativeValueTraits<IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>>::NativeValue(
+ v8::Isolate* isolate,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return NativeValueImpl<
RecipeTrait<MaybeShared<T>>, ToDOMViewType<T, kMaybeShared>,
Nullablity::kIsNotNullable, BufferSizeCheck::kDoNotCheck,
@@ -774,13 +771,12 @@ MaybeShared<T> NativeValueTraits<
}
template <typename T>
-MaybeShared<T> NativeValueTraits<
- IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+MaybeShared<T> NativeValueTraits<IDLBufferSourceTypeNoSizeLimit<
+ MaybeShared<T>>>::ArgumentValue(v8::Isolate* isolate,
+ int argument_index,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return ArgumentValueImpl<
RecipeTrait<MaybeShared<T>>, ToDOMViewType<T, kMaybeShared>,
Nullablity::kIsNotNullable, BufferSizeCheck::kDoNotCheck,
@@ -791,12 +787,11 @@ MaybeShared<T> NativeValueTraits<
// Nullable ArrayBufferView
template <typename T>
-NotShared<T> NativeValueTraits<
- IDLNullable<NotShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- NativeValue(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+NotShared<T> NativeValueTraits<IDLNullable<NotShared<T>>>::NativeValue(
+ v8::Isolate* isolate,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return NativeValueImpl<
RecipeTrait<NotShared<T>>, ToDOMViewType<T, kNotShared>,
Nullablity::kIsNullable, BufferSizeCheck::kCheck,
@@ -805,13 +800,12 @@ NotShared<T> NativeValueTraits<
}
template <typename T>
-NotShared<T> NativeValueTraits<
- IDLNullable<NotShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+NotShared<T> NativeValueTraits<IDLNullable<NotShared<T>>>::ArgumentValue(
+ v8::Isolate* isolate,
+ int argument_index,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return ArgumentValueImpl<
RecipeTrait<NotShared<T>>, ToDOMViewType<T, kNotShared>,
Nullablity::kIsNullable, BufferSizeCheck::kCheck,
@@ -822,12 +816,11 @@ NotShared<T> NativeValueTraits<
// Nullable [AllowShared] ArrayBufferView
template <typename T>
-MaybeShared<T> NativeValueTraits<
- IDLNullable<MaybeShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- NativeValue(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+MaybeShared<T> NativeValueTraits<IDLNullable<MaybeShared<T>>>::NativeValue(
+ v8::Isolate* isolate,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return NativeValueImpl<RecipeTrait<MaybeShared<T>>,
ToDOMViewType<T, kMaybeShared>,
Nullablity::kIsNullable, BufferSizeCheck::kCheck,
@@ -836,13 +829,12 @@ MaybeShared<T> NativeValueTraits<
}
template <typename T>
-MaybeShared<T> NativeValueTraits<
- IDLNullable<MaybeShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
- ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, DOMArrayBufferView>
+MaybeShared<T> NativeValueTraits<IDLNullable<MaybeShared<T>>>::ArgumentValue(
+ v8::Isolate* isolate,
+ int argument_index,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return ArgumentValueImpl<RecipeTrait<MaybeShared<T>>,
ToDOMViewType<T, kMaybeShared>,
Nullablity::kIsNullable, BufferSizeCheck::kCheck,
@@ -853,9 +845,9 @@ MaybeShared<T> NativeValueTraits<
// Nullable [AllowShared, BufferSourceTypeNoSizeLimit] ArrayBufferView
template <typename T>
-MaybeShared<T> NativeValueTraits<
- IDLNullable<IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>::
+ requires std::derived_from<T, DOMArrayBufferView>
+MaybeShared<T>
+NativeValueTraits<IDLNullable<IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>>>::
ArgumentValue(v8::Isolate* isolate,
int argument_index,
v8::Local<v8::Value> value,
@@ -870,13 +862,11 @@ MaybeShared<T> NativeValueTraits<
// [AllowShared, FlexibleArrayBufferView] ArrayBufferView
template <typename T>
-T NativeValueTraits<T,
- typename std::enable_if_t<
- std::is_base_of<FlexibleArrayBufferView, T>::value>>::
- ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, FlexibleArrayBufferView>
+T NativeValueTraits<T>::ArgumentValue(v8::Isolate* isolate,
+ int argument_index,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return ArgumentValueImpl<RecipeTrait<T>, ToFlexibleArrayBufferView,
Nullablity::kIsNotNullable, BufferSizeCheck::kCheck,
ResizableAllowance::kDisallowResizable,
@@ -888,13 +878,12 @@ T NativeValueTraits<T,
// ArrayBufferView
template <typename T>
-T NativeValueTraits<IDLBufferSourceTypeNoSizeLimit<T>,
- typename std::enable_if_t<
- std::is_base_of<FlexibleArrayBufferView, T>::value>>::
- ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, FlexibleArrayBufferView>
+T NativeValueTraits<IDLBufferSourceTypeNoSizeLimit<T>>::ArgumentValue(
+ v8::Isolate* isolate,
+ int argument_index,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return ArgumentValueImpl<
RecipeTrait<T>, ToFlexibleArrayBufferView, Nullablity::kIsNotNullable,
BufferSizeCheck::kDoNotCheck, ResizableAllowance::kDisallowResizable,
@@ -905,13 +894,12 @@ T NativeValueTraits<IDLBufferSourceTypeNoSizeLimit<T>,
// Nullable [AllowShared, FlexibleArrayBufferView] ArrayBufferView
template <typename T>
-T NativeValueTraits<IDLNullable<T>,
- typename std::enable_if_t<
- std::is_base_of<FlexibleArrayBufferView, T>::value>>::
- ArgumentValue(v8::Isolate* isolate,
- int argument_index,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
+ requires std::derived_from<T, FlexibleArrayBufferView>
+T NativeValueTraits<IDLNullable<T>>::ArgumentValue(
+ v8::Isolate* isolate,
+ int argument_index,
+ v8::Local<v8::Value> value,
+ ExceptionState& exception_state) {
return ArgumentValueImpl<RecipeTrait<T>, ToFlexibleArrayBufferView,
Nullablity::kIsNullable, BufferSizeCheck::kCheck,
ResizableAllowance::kDisallowResizable,
diff --git a/third_party/blink/renderer/bindings/core/v8/native_value_traits_impl.h b/third_party/blink/renderer/bindings/core/v8/native_value_traits_impl.h
index 899929dcf49f9..5011503dcf1c0 100644
--- a/third_party/blink/renderer/bindings/core/v8/native_value_traits_impl.h
+++ b/third_party/blink/renderer/bindings/core/v8/native_value_traits_impl.h
@@ -715,9 +718,8 @@ struct CORE_EXPORT NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- T,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>> {
+ requires std::derived_from<T, DOMArrayBufferView>
+struct NativeValueTraits<T> {
// NotShared<T> or MaybeShared<T> should be used instead.
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -729,9 +731,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLNullable<T>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>> {
+ requires std::derived_from<T, DOMArrayBufferView>
+struct NativeValueTraits<IDLNullable<T>> {
// NotShared<T> or MaybeShared<T> should be used instead.
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -743,9 +744,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- NotShared<T>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>
+ requires std::derived_from<T, DOMArrayBufferView>
+struct NativeValueTraits<NotShared<T>>
: public NativeValueTraitsBase<NotShared<T>> {
static NotShared<T> NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -758,9 +758,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLNullable<NotShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>
+ requires std::derived_from<T, DOMArrayBufferView>
+struct NativeValueTraits<IDLNullable<NotShared<T>>>
: public NativeValueTraitsBase<NotShared<T>> {
static NotShared<T> NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -773,9 +772,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- MaybeShared<T>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>
+ requires std::derived_from<T, DOMArrayBufferView>
+struct NativeValueTraits<MaybeShared<T>>
: public NativeValueTraitsBase<MaybeShared<T>> {
static MaybeShared<T> NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -788,9 +786,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>
+ requires std::derived_from<T, DOMArrayBufferView>
+struct NativeValueTraits<IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>>
: public NativeValueTraitsBase<MaybeShared<T>> {
// FlexibleArrayBufferView uses this in its implementation, so we cannot
// delete it.
@@ -805,9 +802,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLNullable<MaybeShared<T>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>
+ requires std::derived_from<T, DOMArrayBufferView>
+struct NativeValueTraits<IDLNullable<MaybeShared<T>>>
: public NativeValueTraitsBase<MaybeShared<T>> {
static MaybeShared<T> NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -820,9 +816,9 @@ struct NativeValueTraits<
};
template <typename T>
+ requires std::derived_from<T, DOMArrayBufferView>
struct NativeValueTraits<
- IDLNullable<IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>>,
- typename std::enable_if_t<std::is_base_of<DOMArrayBufferView, T>::value>>
+ IDLNullable<IDLBufferSourceTypeNoSizeLimit<MaybeShared<T>>>>
: public NativeValueTraitsBase<MaybeShared<T>> {
// BufferSourceTypeNoSizeLimit must be used only as arguments.
static MaybeShared<T> NativeValue(v8::Isolate* isolate,
@@ -836,11 +832,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- T,
- typename std::enable_if_t<
- std::is_base_of<FlexibleArrayBufferView, T>::value>>
- : public NativeValueTraitsBase<T> {
+ requires std::derived_from<T, FlexibleArrayBufferView>
+struct NativeValueTraits<T> : public NativeValueTraitsBase<T> {
// FlexibleArrayBufferView must be used only as arguments.
static T NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -853,10 +846,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLBufferSourceTypeNoSizeLimit<T>,
- typename std::enable_if_t<
- std::is_base_of<FlexibleArrayBufferView, T>::value>>
+ requires std::derived_from<T, FlexibleArrayBufferView>
+struct NativeValueTraits<IDLBufferSourceTypeNoSizeLimit<T>>
: public NativeValueTraitsBase<T> {
// BufferSourceTypeNoSizeLimit and FlexibleArrayBufferView must be used only
// as arguments.
@@ -871,11 +862,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLNullable<T>,
- typename std::enable_if_t<
- std::is_base_of<FlexibleArrayBufferView, T>::value>>
- : public NativeValueTraitsBase<T> {
+ requires std::derived_from<T, FlexibleArrayBufferView>
+struct NativeValueTraits<IDLNullable<T>> : public NativeValueTraitsBase<T> {
// FlexibleArrayBufferView must be used only as arguments.
static T NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -1134,9 +1122,8 @@ NativeValueTraits<IDLSequence<T>>::NativeValue(
}
template <typename T>
-struct NativeValueTraits<IDLNullable<IDLSequence<T>>,
- typename std::enable_if_t<
- NativeValueTraits<IDLSequence<T>>::has_null_value>>
+ requires NativeValueTraits<IDLSequence<T>>::has_null_value
+struct NativeValueTraits<IDLNullable<IDLSequence<T>>>
: public NativeValueTraitsBase<HeapVector<AddMemberIfNeeded<T>>*> {
using ImplType = typename NativeValueTraits<IDLSequence<T>>::ImplType*;
@@ -1203,9 +1190,8 @@ struct NativeValueTraits<IDLArray<T>>
: public NativeValueTraits<IDLSequence<T>> {};
template <typename T>
-struct NativeValueTraits<IDLNullable<IDLArray<T>>,
- typename std::enable_if_t<
- NativeValueTraits<IDLSequence<T>>::has_null_value>>
+ requires NativeValueTraits<IDLSequence<T>>::has_null_value
+struct NativeValueTraits<IDLNullable<IDLArray<T>>>
: public NativeValueTraits<IDLNullable<IDLSequence<T>>> {};
// Record types
@@ -1335,10 +1321,8 @@ struct NativeValueTraits<IDLRecord<K, V>>
// Callback function types
template <typename T>
-struct NativeValueTraits<
- T,
- typename std::enable_if_t<std::is_base_of<CallbackFunctionBase, T>::value>>
- : public NativeValueTraitsBase<T*> {
+ requires std::derived_from<T, CallbackFunctionBase>
+struct NativeValueTraits<T> : public NativeValueTraitsBase<T*> {
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
ExceptionState& exception_state) {
@@ -1361,9 +1345,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLNullable<T>,
- typename std::enable_if_t<std::is_base_of<CallbackFunctionBase, T>::value>>
+ requires std::derived_from<T, CallbackFunctionBase>
+struct NativeValueTraits<IDLNullable<T>>
: public NativeValueTraitsBase<IDLNullable<T>> {
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -1392,10 +1375,8 @@ struct NativeValueTraits<
// Callback interface types
template <typename T>
-struct NativeValueTraits<
- T,
- typename std::enable_if_t<std::is_base_of<CallbackInterfaceBase, T>::value>>
- : public NativeValueTraitsBase<T*> {
+ requires std::derived_from<T, CallbackInterfaceBase>
+struct NativeValueTraits<T> : public NativeValueTraitsBase<T*> {
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
ExceptionState& exception_state) {
@@ -1418,9 +1399,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLNullable<T>,
- typename std::enable_if_t<std::is_base_of<CallbackInterfaceBase, T>::value>>
+ requires std::derived_from<T, CallbackInterfaceBase>
+struct NativeValueTraits<IDLNullable<T>>
: public NativeValueTraitsBase<IDLNullable<T>> {
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -1449,11 +1429,8 @@ struct NativeValueTraits<
// Dictionary types
template <typename T>
-struct NativeValueTraits<
- T,
- typename std::enable_if_t<
- std::is_base_of<bindings::DictionaryBase, T>::value>>
- : public NativeValueTraitsBase<T*> {
+ requires std::derived_from<T, bindings::DictionaryBase>
+struct NativeValueTraits<T> : public NativeValueTraitsBase<T*> {
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
ExceptionState& exception_state) {
@@ -1464,14 +1441,11 @@ struct NativeValueTraits<
// We don't support nullable dictionary types in general since it's quite
// confusing and often misused.
template <typename T>
-struct NativeValueTraits<
- IDLNullable<T>,
- typename std::enable_if_t<
- std::is_base_of<bindings::DictionaryBase, T>::value &&
- (std::is_same<T, GPUColorTargetState>::value ||
- std::is_same<T, GPURenderPassColorAttachment>::value ||
- std::is_same<T, GPUVertexBufferLayout>::value)>>
- : public NativeValueTraitsBase<T*> {
+ requires std::derived_from<T, bindings::DictionaryBase> &&
+ (std::same_as<T, GPUColorTargetState> ||
+ std::same_as<T, GPURenderPassColorAttachment> ||
+ std::same_as<T, GPUVertexBufferLayout>)
+struct NativeValueTraits<IDLNullable<T>> : public NativeValueTraitsBase<T*> {
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
ExceptionState& exception_state) {
@@ -1483,11 +1457,8 @@ struct NativeValueTraits<
// Enumeration types
template <typename T>
-struct NativeValueTraits<
- T,
- typename std::enable_if_t<
- std::is_base_of<bindings::EnumerationBase, T>::value>>
- : public NativeValueTraitsBase<T> {
+ requires std::derived_from<T, bindings::EnumerationBase>
+struct NativeValueTraits<T> : public NativeValueTraitsBase<T> {
static T NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
ExceptionState& exception_state) {
@@ -1497,10 +1468,8 @@ struct NativeValueTraits<
// Interface types
template <typename T>
-struct NativeValueTraits<
- T,
- typename std::enable_if_t<std::is_base_of<ScriptWrappable, T>::value>>
- : public NativeValueTraitsBase<T*> {
+ requires std::derived_from<T, ScriptWrappable>
+struct NativeValueTraits<T> : public NativeValueTraitsBase<T*> {
static inline T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
ExceptionState& exception_state) {
@@ -1528,9 +1497,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLNullable<T>,
- typename std::enable_if_t<std::is_base_of<ScriptWrappable, T>::value>>
+ requires std::derived_from<T, ScriptWrappable>
+struct NativeValueTraits<IDLNullable<T>>
: public NativeValueTraitsBase<IDLNullable<T>> {
static inline T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
@@ -1565,10 +1533,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- T,
- typename std::enable_if_t<std::is_base_of<bindings::UnionBase, T>::value>>
- : public NativeValueTraitsBase<T*> {
+ requires std::derived_from<T, bindings::UnionBase>
+struct NativeValueTraits<T> : public NativeValueTraitsBase<T*> {
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
ExceptionState& exception_state) {
@@ -1584,10 +1550,8 @@ struct NativeValueTraits<
};
template <typename T>
-struct NativeValueTraits<
- IDLNullable<T>,
- typename std::enable_if_t<std::is_base_of<bindings::UnionBase, T>::value>>
- : public NativeValueTraitsBase<T*> {
+ requires std::derived_from<T, bindings::UnionBase>
+struct NativeValueTraits<IDLNullable<T>> : public NativeValueTraitsBase<T*> {
static T* NativeValue(v8::Isolate* isolate,
v8::Local<v8::Value> value,
ExceptionState& exception_state) {
@@ -1608,9 +1572,8 @@ struct NativeValueTraits<
// Nullable types
template <typename InnerType>
-struct NativeValueTraits<
- IDLNullable<InnerType>,
- typename std::enable_if_t<!NativeValueTraits<InnerType>::has_null_value>>
+ requires(!NativeValueTraits<InnerType>::has_null_value)
+struct NativeValueTraits<IDLNullable<InnerType>>
: public NativeValueTraitsBase<IDLNullable<InnerType>> {
// https://webidl.spec.whatwg.org/#es-nullable-type
using ImplType =
@@ -1642,9 +1605,8 @@ struct NativeValueTraits<IDLNullable<IDLNullable<T>>>;
// Optional types
template <typename T>
-struct NativeValueTraits<IDLOptional<T>,
- typename std::enable_if_t<std::is_arithmetic<
- typename NativeValueTraits<T>::ImplType>::value>>
+ requires std::is_arithmetic_v<typename NativeValueTraits<T>::ImplType>
+struct NativeValueTraits<IDLOptional<T>>
: public NativeValueTraitsBase<typename NativeValueTraits<T>::ImplType> {
using ImplType = typename NativeValueTraits<T>::ImplType;
@@ -1666,9 +1628,8 @@ struct NativeValueTraits<IDLOptional<T>,
};
template <typename T>
-struct NativeValueTraits<IDLOptional<T>,
- typename std::enable_if_t<std::is_pointer<
- typename NativeValueTraits<T>::ImplType>::value>>
+ requires std::is_pointer_v<typename NativeValueTraits<T>::ImplType>
+struct NativeValueTraits<IDLOptional<T>>
: public NativeValueTraitsBase<typename NativeValueTraits<T>::ImplType> {
using ImplType = typename NativeValueTraits<T>::ImplType;