/*
 * Copyright (C) 2013-2019 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "SetPrototype.h"

#include "BuiltinNames.h"
#include "GetterSetter.h"
#include "HashMapImplInlines.h"
#include "JSCInlines.h"
#include "JSSet.h"
#include "JSSetIterator.h"

namespace JSC {

const ClassInfo SetPrototype::s_info = { "Set"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(SetPrototype) };

static JSC_DECLARE_HOST_FUNCTION(setProtoFuncAdd);
static JSC_DECLARE_HOST_FUNCTION(setProtoFuncClear);
static JSC_DECLARE_HOST_FUNCTION(setProtoFuncDelete);
static JSC_DECLARE_HOST_FUNCTION(setProtoFuncHas);
static JSC_DECLARE_HOST_FUNCTION(setProtoFuncValues);
static JSC_DECLARE_HOST_FUNCTION(setProtoFuncEntries);

static JSC_DECLARE_HOST_FUNCTION(setProtoFuncSize);

void SetPrototype::finishCreation(VM& vm, JSGlobalObject* globalObject)
{
    Base::finishCreation(vm);
    ASSERT(inherits(info()));

    JSFunction* addFunc = JSFunction::create(vm, globalObject, 1, vm.propertyNames->add.string(), setProtoFuncAdd, JSSetAddIntrinsic);
    putDirectWithoutTransition(vm, vm.propertyNames->add, addFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().addPrivateName(), addFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));

    JSFunction* clearFunc = JSFunction::create(vm, globalObject, 0, vm.propertyNames->clear.string(), setProtoFuncClear);
    putDirectWithoutTransition(vm, vm.propertyNames->clear, clearFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().clearPrivateName(), clearFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));

    JSFunction* deleteFunc = JSFunction::create(vm, globalObject, 1, vm.propertyNames->deleteKeyword.string(), setProtoFuncDelete);
    putDirectWithoutTransition(vm, vm.propertyNames->deleteKeyword, deleteFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().deletePrivateName(), deleteFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));

    JSFunction* entriesFunc = JSFunction::create(vm, globalObject, 0, vm.propertyNames->builtinNames().entriesPublicName().string(), setProtoFuncEntries, JSSetEntriesIntrinsic);
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().entriesPublicName(), entriesFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().entriesPrivateName(), entriesFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));

    JSFunction* forEachFunc = JSFunction::create(vm, setPrototypeForEachCodeGenerator(vm), globalObject);
    putDirectWithoutTransition(vm, vm.propertyNames->forEach, forEachFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().forEachPrivateName(), forEachFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));

    JSFunction* hasFunc = JSFunction::create(vm, globalObject, 1, vm.propertyNames->has.string(), setProtoFuncHas, JSSetHasIntrinsic);
    putDirectWithoutTransition(vm, vm.propertyNames->has, hasFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().hasPrivateName(), hasFunc, static_cast<unsigned>(PropertyAttribute::DontEnum));

    JSFunction* values = JSFunction::create(vm, globalObject, 0, vm.propertyNames->builtinNames().valuesPublicName().string(), setProtoFuncValues, JSSetValuesIntrinsic);
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().keysPublicName(), values, static_cast<unsigned>(PropertyAttribute::DontEnum));
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().keysPrivateName(), values, static_cast<unsigned>(PropertyAttribute::DontEnum));

    JSFunction* sizeGetter = JSFunction::create(vm, globalObject, 0, "get size"_s, setProtoFuncSize);
    GetterSetter* sizeAccessor = GetterSetter::create(vm, globalObject, sizeGetter, nullptr);
    putDirectNonIndexAccessorWithoutTransition(vm, vm.propertyNames->size, sizeAccessor, PropertyAttribute::DontEnum | PropertyAttribute::Accessor);
    putDirectNonIndexAccessorWithoutTransition(vm, vm.propertyNames->builtinNames().sizePrivateName(), sizeAccessor, PropertyAttribute::DontEnum | PropertyAttribute::Accessor);

    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().valuesPublicName(), values, static_cast<unsigned>(PropertyAttribute::DontEnum));
    putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().valuesPrivateName(), values, static_cast<unsigned>(PropertyAttribute::DontEnum));

    putDirectWithoutTransition(vm, vm.propertyNames->iteratorSymbol, values, static_cast<unsigned>(PropertyAttribute::DontEnum));
    JSC_TO_STRING_TAG_WITHOUT_TRANSITION();

    globalObject->installSetPrototypeWatchpoint(this);
}

ALWAYS_INLINE static JSSet* getSet(JSGlobalObject* globalObject, JSValue thisValue)
{
    VM& vm = globalObject->vm();
    auto scope = DECLARE_THROW_SCOPE(vm);

    if (UNLIKELY(!thisValue.isCell())) {
        throwVMError(globalObject, scope, createNotAnObjectError(globalObject, thisValue));
        return nullptr;
    }
    auto* set = jsDynamicCast<JSSet*>(thisValue.asCell());
    if (LIKELY(set))
        return set;
    throwTypeError(globalObject, scope, "Set operation called on non-Set object"_s);
    return nullptr;
}

JSC_DEFINE_HOST_FUNCTION(setProtoFuncAdd, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    JSValue thisValue = callFrame->thisValue();
    JSSet* set = getSet(globalObject, thisValue);
    if (!set)
        return JSValue::encode(jsUndefined());
    set->add(globalObject, callFrame->argument(0));
    return JSValue::encode(thisValue);
}

JSC_DEFINE_HOST_FUNCTION(setProtoFuncClear, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    JSSet* set = getSet(globalObject, callFrame->thisValue());
    if (!set)
        return JSValue::encode(jsUndefined());
    set->clear(globalObject);
    return JSValue::encode(jsUndefined());
}

JSC_DEFINE_HOST_FUNCTION(setProtoFuncDelete, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    JSSet* set = getSet(globalObject, callFrame->thisValue());
    if (!set)
        return JSValue::encode(jsUndefined());
    return JSValue::encode(jsBoolean(set->remove(globalObject, callFrame->argument(0))));
}

JSC_DEFINE_HOST_FUNCTION(setProtoFuncHas, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    JSSet* set = getSet(globalObject, callFrame->thisValue());
    if (!set)
        return JSValue::encode(jsUndefined());
    return JSValue::encode(jsBoolean(set->has(globalObject, callFrame->argument(0))));
}

JSC_DEFINE_HOST_FUNCTION(setProtoFuncSize, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    JSSet* set = getSet(globalObject, callFrame->thisValue());
    if (!set)
        return JSValue::encode(jsUndefined());
    return JSValue::encode(jsNumber(set->size()));
}

inline JSValue createSetIteratorObject(JSGlobalObject* globalObject, CallFrame* callFrame, IterationKind kind)
{
    VM& vm = globalObject->vm();
    JSValue thisValue = callFrame->thisValue();
    JSSet* set = getSet(globalObject, thisValue);
    if (!set)
        return jsUndefined();
    return JSSetIterator::create(vm, globalObject->setIteratorStructure(), set, kind);
}

JSC_DEFINE_HOST_FUNCTION(setProtoFuncValues, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    return JSValue::encode(createSetIteratorObject(globalObject, callFrame, IterationKind::Values));
}

JSC_DEFINE_HOST_FUNCTION(setProtoFuncEntries, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    return JSValue::encode(createSetIteratorObject(globalObject, callFrame, IterationKind::Entries));
}

}