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