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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_EXCEPTION_CONTEXT_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_EXCEPTION_CONTEXT_H_
#include <variant>
#include "base/check_op.h"
#include "base/dcheck_is_on.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "v8/include/v8-exception.h"
namespace blink {
// ExceptionContext stores context information about what Web API throws an
// exception.
//
// Note that ExceptionContext accepts only string literals as its string
// parameters.
class PLATFORM_EXPORT ExceptionContext final {
DISALLOW_NEW();
public:
// Note `class_name` and `property_name` accept only string literals.
ExceptionContext(v8::ExceptionContext type,
const char* class_name,
const char* property_name)
: type_(type), class_name_(class_name), property_name_(property_name) {
#if DCHECK_IS_ON()
switch (type) {
case v8::ExceptionContext::kAttributeGet:
case v8::ExceptionContext::kAttributeSet:
case v8::ExceptionContext::kOperation:
case v8::ExceptionContext::kIndexedGetter:
case v8::ExceptionContext::kIndexedDescriptor:
case v8::ExceptionContext::kIndexedSetter:
case v8::ExceptionContext::kIndexedDefiner:
case v8::ExceptionContext::kIndexedDeleter:
case v8::ExceptionContext::kIndexedQuery:
case v8::ExceptionContext::kNamedGetter:
case v8::ExceptionContext::kNamedDescriptor:
case v8::ExceptionContext::kNamedSetter:
case v8::ExceptionContext::kNamedDefiner:
case v8::ExceptionContext::kNamedDeleter:
case v8::ExceptionContext::kNamedQuery:
DCHECK(class_name);
DCHECK(property_name);
break;
case v8::ExceptionContext::kConstructor:
case v8::ExceptionContext::kNamedEnumerator:
DCHECK(class_name);
break;
case v8::ExceptionContext::kUnknown:
break;
}
#endif // DCHECK_IS_ON()
}
constexpr ExceptionContext()
: type_(v8::ExceptionContext::kUnknown),
class_name_(nullptr),
property_name_(nullptr) {}
ExceptionContext(v8::ExceptionContext type, const char* class_name)
: ExceptionContext(type, class_name, nullptr) {}
ExceptionContext(const ExceptionContext&) = default;
ExceptionContext(ExceptionContext&&) = default;
ExceptionContext& operator=(const ExceptionContext&) = default;
ExceptionContext& operator=(ExceptionContext&&) = default;
~ExceptionContext() = default;
v8::ExceptionContext GetType() const { return type_; }
const char* GetClassName() const { return class_name_; }
const char* GetPropertyName() const { return property_name_; }
private:
v8::ExceptionContext type_;
const char* class_name_ = nullptr;
const char* property_name_ = nullptr;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_EXCEPTION_CONTEXT_H_
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