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/*
* Copyright (C) 2017 Caio Lima <ticaiolima@gmail.com>.
* Copyright (C) 2017-2020 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. AND ITS CONTRIBUTORS ``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 ITS 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
"
BigIntPrototype.h
"
#
include
"
BigIntObject.h
"
#
include
"
IntegrityInlines.h
"
#
include
"
IntlNumberFormatInlines.h
"
#
include
"
JSBigInt.h
"
#
include
"
JSCInlines.h
"
#
include
"
JSCast.h
"
#
include
"
NumberPrototype.h
"
#
include
<
wtf/Assertions.h
>
namespace
JSC
{
static
JSC_DECLARE_HOST_FUNCTION
(bigIntProtoFuncToString);
static
JSC_DECLARE_HOST_FUNCTION
(bigIntProtoFuncToLocaleString);
static
JSC_DECLARE_HOST_FUNCTION
(bigIntProtoFuncValueOf);
}
#
include
"
BigIntPrototype.lut.h
"
namespace
JSC
{
const
ClassInfo BigIntPrototype::s_info = {
"
BigInt
"
_s, &Base::s_info, &bigIntPrototypeTable,
nullptr
,
CREATE_METHOD_TABLE
(BigIntPrototype) };
/*
Source for BigIntPrototype.lut.h
@begin bigIntPrototypeTable
toString bigIntProtoFuncToString DontEnum|Function 0
toLocaleString bigIntProtoFuncToLocaleString DontEnum|Function 0
valueOf bigIntProtoFuncValueOf DontEnum|Function 0
@end
*/
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE
(BigIntPrototype);
BigIntPrototype::BigIntPrototype
(
VM
& vm, Structure* structure)
: JSNonFinalObject(vm, structure)
{
}
void
BigIntPrototype::finishCreation
(
VM
& vm, JSGlobalObject*)
{
Base::finishCreation
(vm);
ASSERT
(
inherits
(
info
()));
JSC_TO_STRING_TAG_WITHOUT_TRANSITION
();
structure
()->
setMayBePrototype
(
true
);
}
//
------------------------------ Functions ---------------------------
static
ALWAYS_INLINE
JSBigInt*
toThisBigIntValue
(JSGlobalObject* globalObject, JSValue thisValue)
{
VM
& vm = globalObject->
vm
();
auto
scope =
DECLARE_THROW_SCOPE
(vm);
#
if
USE(BIGINT32)
//
FIXME: heap-allocating all big ints is inneficient, but re-implementing toString for small BigInts is enough work that I'm deferring it to a later patch.
if
(thisValue.
isBigInt32
())
RELEASE_AND_RETURN
(scope,
JSBigInt::createFrom
(globalObject, thisValue.
bigInt32AsInt32
()));
#
endif
if
(thisValue.
isCell
()) {
if
(JSBigInt* bigInt = dynamicDowncast<JSBigInt>(thisValue.
asCell
()))
return
bigInt;
if
(BigIntObject* bigIntObject = dynamicDowncast<BigIntObject>(thisValue.
asCell
())) {
JSValue bigInt = bigIntObject->
internalValue
();
#
if
USE(BIGINT32)
if
(bigInt.
isBigInt32
())
RELEASE_AND_RETURN
(scope,
JSBigInt::createFrom
(globalObject, bigInt.
bigInt32AsInt32
()));
#
endif
return
bigInt.
asHeapBigInt
();
}
}
throwTypeError
(globalObject, scope,
"
'this' value must be a BigInt or BigIntObject
"
_s);
return
nullptr
;
}
JSC_DEFINE_HOST_FUNCTION
(bigIntProtoFuncToString, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM
& vm = globalObject->
vm
();
auto
scope =
DECLARE_THROW_SCOPE
(vm);
JSBigInt* value =
toThisBigIntValue
(globalObject, callFrame->
thisValue
());
RETURN_IF_EXCEPTION
(scope, { });
ASSERT
(value);
Integrity::auditStructureID
(value->
structureID
());
int32_t
radix =
extractToStringRadixArgument
(globalObject, callFrame->
argument
(
0
), scope);
RETURN_IF_EXCEPTION
(scope, { });
String resultString = value->
toString
(globalObject, radix);
RETURN_IF_EXCEPTION
(scope, { });
scope.
release
();
if
(resultString.
length
() ==
1
)
return
JSValue::encode
(vm.
smallStrings
.
singleCharacterString
(resultString[
0
]));
return
JSValue::encode
(
jsNontrivialString
(vm, resultString));
}
//
FIXME: this function should introduce the right separators for thousands and similar things.
JSC_DEFINE_HOST_FUNCTION
(bigIntProtoFuncToLocaleString, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM
& vm = globalObject->
vm
();
auto
scope =
DECLARE_THROW_SCOPE
(vm);
JSBigInt* thisValue =
toThisBigIntValue
(globalObject, callFrame->
thisValue
());
RETURN_IF_EXCEPTION
(scope, { });
auto
* numberFormat =
IntlNumberFormat::create
(vm, globalObject->
numberFormatStructure
());
numberFormat->
initializeNumberFormat
(globalObject, callFrame->
argument
(
0
), callFrame->
argument
(
1
));
RETURN_IF_EXCEPTION
(scope, { });
auto
value =
toIntlMathematicalValue
(globalObject, thisValue);
RETURN_IF_EXCEPTION
(scope, { });
if
(
auto
number = value.
tryGetDouble
())
RELEASE_AND_RETURN
(scope,
JSValue::encode
(numberFormat->
format
(globalObject, number.
value
())));
RELEASE_AND_RETURN
(scope,
JSValue::encode
(numberFormat->
format
(globalObject,
WTF::move
(value))));
}
JSC_DEFINE_HOST_FUNCTION
(bigIntProtoFuncValueOf, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM
& vm = globalObject->
vm
();
auto
scope =
DECLARE_THROW_SCOPE
(vm);
JSBigInt* value =
toThisBigIntValue
(globalObject, callFrame->
thisValue
());
RETURN_IF_EXCEPTION
(scope, { });
Integrity::auditStructureID
(value->
structureID
());
return
JSValue::encode
(value);
}
}
//
namespace JSC
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