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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_INTL_SUPPORT
#error Internationalization is expected to be enabled.
#endif // V8_INTL_SUPPORT
#ifndef V8_OBJECTS_JS_COLLATOR_H_
#define V8_OBJECTS_JS_COLLATOR_H_
#include "src/heap/factory.h"
#include "src/isolate.h"
#include "src/objects.h"
#include "src/objects/intl-objects.h"
#include "src/objects/managed.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
class JSCollator : public JSObject {
public:
// ecma402/#sec-initializecollator
V8_WARN_UNUSED_RESULT static MaybeHandle<JSCollator> InitializeCollator(
Isolate* isolate, Handle<JSCollator> collator, Handle<Object> locales,
Handle<Object> options);
// ecma402/#sec-intl.collator.prototype.resolvedoptions
static Handle<JSObject> ResolvedOptions(Isolate* isolate,
Handle<JSCollator> collator);
DECL_CAST(JSCollator)
DECL_PRINTER(JSCollator)
DECL_VERIFIER(JSCollator)
// [[Usage]] is one of the values "sort" or "search", identifying
// the collator usage.
enum class Usage {
SORT,
SEARCH,
COUNT
};
inline void set_usage(Usage usage);
inline Usage usage() const;
static const char* UsageToString(Usage usage);
// Layout description.
#define JS_COLLATOR_FIELDS(V) \
V(kICUCollatorOffset, kPointerSize) \
V(kFlagsOffset, kPointerSize) \
V(kBoundCompareOffset, kPointerSize) \
/* Total size. */ \
V(kSize, 0)
DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize, JS_COLLATOR_FIELDS)
#undef JS_COLLATOR_FIELDS
// ContextSlot defines the context structure for the bound
// Collator.prototype.compare function.
enum ContextSlot {
// The collator instance that the function holding this context is bound to.
kCollator = Context::MIN_CONTEXT_SLOTS,
kLength
};
// Bit positions in |flags|.
#define FLAGS_BIT_FIELDS(V, _) V(UsageBits, Usage, 1, _)
DEFINE_BIT_FIELDS(FLAGS_BIT_FIELDS)
#undef FLAGS_BIT_FIELDS
STATIC_ASSERT(Usage::SORT <= UsageBits::kMax);
STATIC_ASSERT(Usage::SEARCH <= UsageBits::kMax);
DECL_ACCESSORS(icu_collator, Managed<icu::Collator>)
DECL_ACCESSORS(bound_compare, Object);
DECL_INT_ACCESSORS(flags)
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(JSCollator);
};
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_OBJECTS_JS_COLLATOR_H_
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